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STATISTICS for THE UNITED STATES OF AMERICA

STATISTICS FOR THE UNITED STATES OF AMERICA


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-02-15   PAGE 637

 STATION - MISSISSIPPI RIVER                        STATION NO. 028001
 COUNTRY - UNITED STATES                            DEPTH(M)      14.0
 LOCATION - OCT. 1  LAT. 32/18/45  LONG. 090/54/25  ELEVATION(M)  21.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-06 TO 1984-11-09

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       15          8         14          6         13
 MEAN                        343.        0.0        0.9       1.47        8.8
 MINIMUM                     140.        0.0        0.4       0.40        6.9
 DATE OF MINIMUM       1984-09-26 1982-12-06 1984-05-23 1982-05-24 1984-07-18
 10TH PERCENTILE             190.                   0.4                   6.9
 MEDIAN                      347.        0.0        0.9       1.55        8.1
 90TH PERCENTILE             430.                   1.5                  10.8
 MAXIMUM                     473.        0.0        2.0       2.20       12.3
 DATE OF MAXIMUM       1982-05-24 1984-11-09 1983-11-17 1982-07-15 1984-01-17
 STANDARD DEVIATION           88.        0.0        0.5       0.59        1.8




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        1          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          1         14         15         14
 MEAN                         0.2      92.00        11.        18.     36.429
 MINIMUM                      0.1                    4.         5.     14.000
 DATE OF MINIMUM       1983-01-11            1984-09-26 1984-09-26 1984-09-26
 10TH PERCENTILE              0.1                    6.         8.     20.800
 MEDIAN                       0.2                   12.        18.     38.000
 90TH PERCENTILE              0.2                   14.        25.     43.500
 MAXIMUM                      0.3                   14.        32.     46.000
 DATE OF MAXIMUM       1983-11-17            1983-11-17 1982-05-24 1983-07-06
 STANDARD DEVIATION           0.1                    3.         7.      7.978




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         10          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          1         11          1
 MEAN                       0.010      0.002       0.28       0.01       5.80
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1983-01-11            1983-04-26           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.01           
 90TH PERCENTILE                       0.002                  0.01           
 MAXIMUM                               0.010                  0.03           
 DATE OF MAXIMUM                  1982-05-24            1984-09-26           
 STANDARD DEVIATION                    0.003                  0.01           





                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          1         10          1         11
 MEAN                        0.05      0.012      0.003      0.013      0.004
 MINIMUM                     0.02                 0.001                 0.002
 DATE OF MINIMUM       1983-04-26            1983-11-17            1983-11-17
 10TH PERCENTILE             0.02                 0.001                 0.002
 MEDIAN                      0.03                 0.002                 0.004
 90TH PERCENTILE             0.08                 0.004                 0.007
 MAXIMUM                     0.24                 0.006                 0.007
 DATE OF MAXIMUM       1983-01-11            1983-04-26            1983-04-26
 STANDARD DEVIATION          0.07                 0.002                 0.002




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          1          0
 NO. OF UNFLAGGED VALUES        1         11         12         12          1
 MEAN                       0.003      0.002      1145.      1133.      0.002
 MINIMUM                               0.001       189.        70.           
 DATE OF MINIMUM                  1982-05-24 1982-03-10 1983-07-06           
 10TH PERCENTILE                       0.001       227.       118.           
 MEDIAN                                0.002       924.       600.           
 90TH PERCENTILE                       0.003      1540.      2290.           
 MAXIMUM                               0.005      3400.      4000.           
 DATE OF MAXIMUM                  1983-01-11 1984-11-09 1983-01-11           
 STANDARD DEVIATION                    0.001       823.      1139.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES        7          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          1         11          1          8
 MEAN                       0.001        0.1        0.1      0.200      0.350
 MINIMUM                    0.001                   0.1                 0.100
 DATE OF MINIMUM       1982-12-06            1982-05-24            1983-11-17
 10TH PERCENTILE            0.001                   0.1                 0.100
 MEDIAN                     0.001                   0.1                 0.250
 90TH PERCENTILE            0.002                   0.1                 0.700
 MAXIMUM                    0.002                   0.1                 1.000
 DATE OF MAXIMUM       1984-07-18            1984-11-09            1982-12-06
 STANDARD DEVIATION         0.000                   0.0                 0.299




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        1         10         12
 MEAN                       0.005      0.002    24990.0
 MINIMUM                               0.001    10336.8
 DATE OF MINIMUM                  1983-11-17 1983-11-17
 10TH PERCENTILE                       0.001    10999.5
 MEDIAN                                0.002    21140.9
 90TH PERCENTILE                       0.003    40865.8
 MAXIMUM                               0.008    44745.6
 DATE OF MAXIMUM                  1983-01-11 1984-05-23
 STANDARD DEVIATION                    0.002    11545.4





 STATION - COLUMBIA RIVER                           STATION NO. 028002
 COUNTRY - UNITED STATES                            DEPTH(M)      18.0
 LOCATION - OCT. 1  LAT. 45/36/45  LONG. 122/01/35  ELEVATION(M)   3.7
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-02-11 TO 1984-10-16

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14          9         14          9         14
 MEAN                        165.        0.0        0.6       0.29       10.3
 MINIMUM                     120.        0.0        0.2       0.10        0.0
 DATE OF MINIMUM       1982-07-28 1982-10-15 1984-09-25 1982-05-28 1982-09-02
 10TH PERCENTILE             124.                   0.2       0.10        3.4
 MEDIAN                      167.        0.0        0.6       0.25        9.6
 90TH PERCENTILE             194.                   0.7       0.50       13.2
 MAXIMUM                     202.        0.0        1.4       0.90       15.8
 DATE OF MAXIMUM       1982-02-11 1984-10-16 1982-09-02 1982-03-03 1982-03-03
 STANDARD DEVIATION           26.        0.0        0.3       0.23        3.7




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         12         14         14         14
 MEAN                         0.2      64.50         5.         3.     18.643
 MINIMUM                      0.1      52.00         3.         1.     15.000
 DATE OF MINIMUM       1982-07-28 1982-07-28 1982-07-28 1982-07-28 1982-07-28
 10TH PERCENTILE              0.1      52.40         3.         1.     15.000
 MEDIAN                       0.2      66.50         5.         3.     19.000
 90TH PERCENTILE              0.2      73.50         6.         4.     21.500
 MAXIMUM                      0.2      76.00         6.         5.     22.000
 DATE OF MAXIMUM       1982-05-28 1984-01-23 1983-01-25 1983-01-25 1984-01-23
 STANDARD DEVIATION           0.0       8.19         1.         1.      2.437




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        2         11          0          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          3         10          3
 MEAN                       0.010      0.003       0.05       0.00       1.58
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-10-15            1982-02-11           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.01           
 MAXIMUM                               0.010                  0.01           
 DATE OF MAXIMUM                  1982-09-02            1983-04-19           
 STANDARD DEVIATION                    0.004                  0.00           




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          4          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12          3          6          3         10
 MEAN                        0.04      0.002      0.002      0.010      0.003
 MINIMUM                     0.00                 0.001                 0.001
 DATE OF MINIMUM       1982-09-02            1982-02-11            1982-02-11
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.04                 0.001                 0.003
 90TH PERCENTILE             0.08                 0.004                 0.006
 MAXIMUM                     0.10                 0.004                 0.008
 DATE OF MAXIMUM       1984-04-25            1984-09-25            1984-01-23
 STANDARD DEVIATION          0.03                 0.001                 0.002




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          1          1          1          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         11         12         12          1
 MEAN                       0.002      0.001         7.       476.      0.001
 MINIMUM                               0.001         1.         6.           
 DATE OF MINIMUM                  1982-03-03 1982-09-02 1984-04-25           
 10TH PERCENTILE                       0.001         1.         7.           
 MEDIAN                                0.001         4.        88.           
 90TH PERCENTILE                       0.002        15.       862.           
 MAXIMUM                               0.002        21.      3500.           
 DATE OF MAXIMUM                  1982-10-15 1983-01-25 1982-03-03           
 STANDARD DEVIATION                    0.000         7.       957.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       10          2          0          1          9
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1         12          2          3
 MEAN                       0.001        0.1        0.0      0.333      0.125
 MINIMUM                    0.001                   0.0                 0.100
 DATE OF MINIMUM       1982-02-11            1982-02-11            1982-09-02
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001                   0.0                 0.100
 90TH PERCENTILE            0.001                   0.0                 0.200
 MAXIMUM                    0.001                   0.0                 0.200
 DATE OF MAXIMUM       1984-10-16            1984-10-16            1982-03-03
 STANDARD DEVIATION         0.000                   0.0                 0.045





                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        1          8          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        2          4          4
 MEAN                       0.002      0.002     4750.7
 MINIMUM                               0.001        0.0
 DATE OF MINIMUM                  1982-02-11 1983-04-19
 10TH PERCENTILE                       0.001           
 MEDIAN                                0.001     4573.7
 90TH PERCENTILE                       0.003           
 MAXIMUM                               0.010     9855.4
 DATE OF MAXIMUM                  1982-10-15 1984-04-25
 STANDARD DEVIATION                    0.003     4152.3





 STATION - YUKON RIVER                              STATION NO. 028003
 COUNTRY - UNITED STATES                            DEPTH(M)      11.0
 LOCATION - OCT. 1  LAT. 61/56/04  LONG. 162/52/50  ELEVATION(M)   9.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-06-18 TO 1984-10-10

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          1          1          6          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       43         10         14          6         33
 MEAN                        188.        0.0        0.5       0.13        9.7
 MINIMUM                     121.        0.0        0.2       0.10        2.6
 DATE OF MINIMUM       1984-06-05 1983-03-30 1984-03-20 1982-06-18 1984-04-02
 10TH PERCENTILE             123.        0.0        0.2       0.10        8.6
 MEDIAN                      182.        0.0        0.6       0.10        9.6
 90TH PERCENTILE             248.        0.0        0.9       0.20       11.6
 MAXIMUM                     325.        0.0        0.9       0.20       12.2
 DATE OF MAXIMUM       1983-03-30 1984-09-21 1983-06-14 1984-03-20 1983-09-22
 STANDARD DEVIATION           50.        0.0        0.3       0.05        1.7




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        2          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          2         15         15         15
 MEAN                         0.1      70.00         7.         1.     33.000
 MINIMUM                      0.1                    3.         0.     22.000
 DATE OF MINIMUM       1982-06-18            1982-06-18 1983-06-14 1982-06-18
 10TH PERCENTILE              0.1                    4.         0.     22.000
 MEDIAN                       0.1                    7.         1.     29.000
 90TH PERCENTILE              0.2                   11.         1.     48.500
 MAXIMUM                      0.2                   11.         1.     49.000
 DATE OF MAXIMUM       1984-09-21            1984-03-20 1983-03-30 1984-03-20
 STANDARD DEVIATION           0.0                    2.         0.      9.312




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        1          9          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          4          2         13          2
 MEAN                       0.010      0.002       0.21       0.05       7.75
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1983-03-30            1983-07-13           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.02           
 90TH PERCENTILE                       0.007                  0.17           
 MAXIMUM                               0.010                  0.19           
 DATE OF MAXIMUM                  1982-09-29            1983-03-30           
 STANDARD DEVIATION                    0.003                  0.07           





                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          5          0          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          2          8          2          9
 MEAN                        0.17      0.013      0.001      0.019      0.005
 MINIMUM                     0.03                 0.001                 0.001
 DATE OF MINIMUM       1984-03-20            1982-09-29            1982-09-29
 10TH PERCENTILE             0.04                 0.001                 0.001
 MEDIAN                      0.19                 0.001                 0.006
 90TH PERCENTILE             0.27                 0.003                 0.009
 MAXIMUM                     0.31                 0.003                 0.011
 DATE OF MAXIMUM       1984-06-05            1984-06-05            1984-06-05
 STANDARD DEVIATION          0.09                 0.001                 0.004




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          7          5          7          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          6          6          4          1
 MEAN                       0.003      0.001         2.         2.      0.002
 MINIMUM                               0.001         1.         1.           
 DATE OF MINIMUM                  1982-06-18 1982-06-18 1984-03-20           
 10TH PERCENTILE                       0.001         1.         1.           
 MEDIAN                                0.001         1.         1.           
 90TH PERCENTILE                       0.001         3.         3.           
 MAXIMUM                               0.001         5.         5.           
 DATE OF MAXIMUM                  1984-09-21 1984-07-11 1982-06-18           
 STANDARD DEVIATION                    0.000         1.         1.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       11          0          0          0          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          2         13          2          6
 MEAN                       0.001        0.1        0.0      0.200      0.275
 MINIMUM                    0.001                   0.0                 0.000
 DATE OF MINIMUM       1982-06-18            1982-06-18            1983-07-13
 10TH PERCENTILE            0.001                   0.0                 0.020
 MEDIAN                     0.001                   0.0                 0.150
 90TH PERCENTILE            0.001                   0.1                 0.540
 MAXIMUM                    0.001                   0.1                 0.900
 DATE OF MAXIMUM       1984-09-21            1984-03-21            1984-03-20
 STANDARD DEVIATION         0.000                   0.0                 0.263




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          4          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        2          9         15
 MEAN                       0.003      0.003     8326.5
 MINIMUM                               0.001      314.4
 DATE OF MINIMUM                  1982-09-29 1984-03-21
 10TH PERCENTILE                       0.001      440.4
 MEDIAN                                0.002    10308.5
 90TH PERCENTILE                       0.005    15080.4
 MAXIMUM                               0.006    18974.4
 DATE OF MAXIMUM                  1984-09-20 1982-06-18
 STANDARD DEVIATION                    0.002     6645.2





 STATION - MISSOURI RIVER                           STATION NO. 028004
 COUNTRY - UNITED STATES                            DEPTH(M)       4.6
 LOCATION - OCT. 1  LAT. 38/42/36  LONG. 091/26/21  ELEVATION(M) 150.3
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-27 TO 1984-12-04

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       44          9         23         23         44
 MEAN                        506.        0.0        1.9       1.25        7.9
 MINIMUM                     308.        0.0        0.5       0.10        4.0
 DATE OF MINIMUM       1984-11-06 1982-11-17 1982-07-22 1983-07-27 1984-06-19
 10TH PERCENTILE             324.                   0.5       0.40        4.2
 MEDIAN                      497.        0.0        1.4       1.20        7.0
 90TH PERCENTILE             716.                   3.5       2.06       11.7
 MAXIMUM                     805.        0.0        5.5       2.50       13.4
 DATE OF MAXIMUM       1983-10-05 1984-12-04 1984-03-20 1984-05-09 1984-01-17
 STANDARD DEVIATION          153.        0.0        1.4       0.69        2.7




                                F        ALK         Mg         Cl    LINDANE
                             DISS      TOTAL       DISS       DISS           
                            09104      10121      12102      17203      18070
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl       ug/L


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       23         24         23         23          1
 MEAN                         0.4     147.92        18.        16.      0.000
 MINIMUM                      0.2      91.00         8.        10.           
 DATE OF MINIMUM       1984-03-20 1984-11-06 1984-06-19 1984-06-19           
 10TH PERCENTILE              0.3     104.00        11.        11.           
 MEDIAN                       0.4     155.00        18.        15.           
 90TH PERCENTILE              0.5     174.00        23.        22.           
 MAXIMUM                      0.5     180.00        24.        26.           
 DATE OF MAXIMUM       1984-10-09 1983-10-05 1984-10-09 1982-01-27           
 STANDARD DEVIATION           0.1      25.51         4.         4.           




                            MIREX     ALDRIN     ENDRIN   DIELDRIN         Ca
                                                                         DISS
                            18125      18130      18140      18150      20103
                             ug/L       ug/L       ug/L       ug/L    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          1          1         23
 MEAN                       0.000      0.000      0.000      0.000     53.739
 MINIMUM                                                               35.000
 DATE OF MINIMUM                                                   1984-03-20
 10TH PERCENTILE                                                       38.900
 MEDIAN                                                                54.000
 90TH PERCENTILE                                                       65.000
 MAXIMUM                                                               68.000
 DATE OF MAXIMUM                                                   1983-07-27
 STANDARD DEVIATION                                                     8.859




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         10          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          2          3         11          3
 MEAN                       0.033      0.004       1.25       0.01      28.17
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-11-17            1982-07-22           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.03           
 MAXIMUM                               0.010                  0.08           
 DATE OF MAXIMUM                  1982-07-22            1984-12-04           
 STANDARD DEVIATION                    0.004                  0.02           




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12          3         12          3         10
 MEAN                        0.09      0.025      0.004      0.063      0.004
 MINIMUM                     0.01                 0.001                 0.001
 DATE OF MINIMUM       1984-01-17            1982-07-22            1983-11-16
 10TH PERCENTILE             0.01                 0.001                 0.001
 MEDIAN                      0.05                 0.003                 0.003
 90TH PERCENTILE             0.08                 0.006                 0.007
 MAXIMUM                     0.65                 0.008                 0.010
 DATE OF MAXIMUM       1984-12-04            1983-11-16            1984-12-04
 STANDARD DEVIATION          0.18                 0.002                 0.003




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12         24         24          3
 MEAN                       0.009      0.002      2533.      5286.      0.312
 MINIMUM                               0.001       140.        44.           
 DATE OF MINIMUM                  1983-01-25 1984-08-14 1984-08-14           
 10TH PERCENTILE                       0.001       198.       108.           
 MEDIAN                                0.002      1700.      1700.           
 90TH PERCENTILE                       0.003      5400.     16500.           
 MAXIMUM                               0.005     14000.     24000.           
 DATE OF MAXIMUM                  1983-07-27 1982-09-16 1982-05-19           
 STANDARD DEVIATION                    0.001      3112.      7106.           





                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       10          0          0          0          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          3         12          3          4
 MEAN                       0.007        0.5        0.1      0.367      0.125
 MINIMUM                    0.001                   0.1                 0.100
 DATE OF MINIMUM       1982-01-27            1982-01-27            1982-01-27
 10TH PERCENTILE            0.001                   0.1                 0.100
 MEDIAN                     0.001                   0.1                 0.100
 90TH PERCENTILE            0.006                   0.1                 0.170
 MAXIMUM                    0.068                   0.1                 0.300
 DATE OF MAXIMUM       1982-07-22            1984-12-04            1983-05-18
 STANDARD DEVIATION         0.019                   0.0                 0.062




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          7          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          5         44
 MEAN                       0.028      0.002     3656.4
 MINIMUM                               0.001     1016.7
 DATE OF MINIMUM                  1982-05-19 1982-01-27
 10TH PERCENTILE                       0.001     1016.7
 MEDIAN                                0.001     2888.6
 90TH PERCENTILE                       0.003     6966.7
 MAXIMUM                               0.005     7363.2
 DATE OF MAXIMUM                  1984-12-04 1984-03-20
 STANDARD DEVIATION                    0.001     2040.0





 STATION - SUSQUEHANNA RIVER                        STATION NO. 028005
 COUNTRY - UNITED STATES                            DEPTH(M)       2.0
 LOCATION - OCT. 0  LAT. 40/15/17  LONG. 076/53/11  ELEVATION(M)  89.9
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-03-15 TO 1984-12-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li        TOC     N KJEL     NO3NO2
                             COND       DISS                                 
                            02041      03101      06001      07004      07105
                            us/cm    mg/L Li     mg/L C     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          4          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22          6          2         22         20
 MEAN                        257.        0.0         1.        0.8       1.24
 MINIMUM                      90.        0.0                   0.3       0.50
 DATE OF MINIMUM       1984-02-16 1982-11-16            1984-11-16 1982-09-01
 10TH PERCENTILE             159.        0.0                   0.3       0.50
 MEDIAN                      252.        0.0                   0.6       1.30
 90TH PERCENTILE             364.        0.0                   1.2       1.80
 MAXIMUM                     381.        0.0                   2.5       1.90
 DATE OF MAXIMUM       1984-10-23 1984-11-16            1983-11-01 1984-07-03
 STANDARD DEVIATION           83.        0.0                   0.5       0.39




                            NO2-N         O2        BOD          F        ALK
                                        DISS                  DISS      TOTAL
                            07207      08102      08201      09104      10121
                           mg/L N    mg/L O2    mg/L O2     mg/L F      MEQ/L


 NO. OF L-FLAGGED VALUES        0          0          0          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         19          1          9          1
 MEAN                        0.02       10.8         0.        0.1      57.00
 MINIMUM                                 7.8                   0.1           
 DATE OF MINIMUM                  1983-07-27            1982-03-15           
 10TH PERCENTILE                         8.0                   0.1           
 MEDIAN                                 10.2                   0.1           
 90TH PERCENTILE                        13.4                   0.1           
 MAXIMUM                                14.4                   0.2           
 DATE OF MAXIMUM                  1983-01-13            1983-11-01           
 STANDARD DEVIATION                      2.1                   0.0           




                               Mg         Cl      MIREX     ALDRIN     ENDRIN
                             DISS       DISS                                 
                            12102      17203      18125      18130      18140
                          mg/L Mg    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          1          1          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18         18          0          0          0
 MEAN                          8.        11.      0.010      0.010      0.010
 MINIMUM                       2.         6.                                 
 DATE OF MINIMUM       1984-02-16 1984-02-16                                 
 10TH PERCENTILE               4.         7.                                 
 MEDIAN                        6.         9.                                 
 90TH PERCENTILE              12.        18.                                 
 MAXIMUM                      14.        21.                                 
 DATE OF MAXIMUM       1983-08-31 1983-08-31                                 
 STANDARD DEVIATION            4.         5.                                 




                         DIELDRIN         Ca         Cr         Cr         Mn
                                        DISS      TOTAL       DISS      TOTAL
                            18150      20103      24002      24052      25004
                             ug/L    mg/L Ca    mg/L Cr    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        1          0          0          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         18          3          6          3
 MEAN                       0.010     27.500      0.013      0.004       0.29
 MINIMUM                              11.000                 0.001           
 DATE OF MINIMUM                  1984-02-16            1982-11-16           
 10TH PERCENTILE                      15.800                 0.001           
 MEDIAN                               27.000                 0.001           
 90TH PERCENTILE                      39.100                 0.010           
 MAXIMUM                              41.000                 0.020           
 DATE OF MAXIMUM                  1983-07-27            1982-09-01           
 STANDARD DEVIATION                    9.005                 0.006           




                               Mn         Fe         Fe         Ni         Ni
                             DISS      TOTAL       DISS      TOTAL       DISS
                            25104      26004      26104      28001      28102
                          mg/L Mn    mg/L Fe    mg/L Fe    mg/L Ni    mg/L Ni


 NO. OF L-FLAGGED VALUES        0          0          1          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14          3         12          3         12
 MEAN                        0.07       2.74       0.04      0.012      0.004
 MINIMUM                     0.00                  0.00                 0.001
 DATE OF MINIMUM       1982-06-28            1982-06-28            1982-06-28
 10TH PERCENTILE             0.00                  0.00                 0.001
 MEDIAN                      0.05                  0.01                 0.004
 90TH PERCENTILE             0.14                  0.09                 0.006
 MAXIMUM                     0.22                  0.09                 0.009
 DATE OF MAXIMUM       1984-03-06            1984-03-06            1983-05-19
 STANDARD DEVIATION          0.07                  0.04                 0.002




                               Cu         Cu         As         As   FAEC COL
                            TOTAL       DISS      TOTAL       DISS           
                            29006      29105      33003      33104      36012
                          mg/L Cu    mg/L Cu    mg/L As    mg/L As   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          1          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         13          2         10         16
 MEAN                       0.013      0.004      0.001      0.001        64.
 MINIMUM                               0.001                 0.001         4.
 DATE OF MINIMUM                  1983-08-31            1982-03-15 1983-11-01
 10TH PERCENTILE                       0.001                 0.001         8.
 MEDIAN                                0.004                 0.001        37.
 90TH PERCENTILE                       0.007                 0.002        79.
 MAXIMUM                               0.010                 0.002       499.
 DATE OF MAXIMUM                  1984-03-06            1984-05-02 1982-03-15
 STANDARD DEVIATION                    0.003                 0.000       118.





                             FAEC         Cd         Cd         Ba         Ba
                            STREP      TOTAL       DISS      TOTAL       DISS
                            36102      48001      48101      56001      56101
                         No/100ml    mg/L Cd    mg/L Cd    mg/L Ba    mg/L Ba


 NO. OF L-FLAGGED VALUES        0          1         12          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       17          2          1          1         13
 MEAN                        242.      0.001      0.001        0.1        0.0
 MINIMUM                      12.                 0.001                   0.0
 DATE OF MINIMUM       1984-05-02            1982-03-15            1982-03-15
 10TH PERCENTILE              15.                 0.001                   0.0
 MEDIAN                      104.                 0.001                   0.0
 90TH PERCENTILE             468.                 0.001                   0.0
 MAXIMUM                    1500.                 0.001                   0.1
 DATE OF MAXIMUM       1982-03-15            1984-11-16            1983-08-31
 STANDARD DEVIATION          397.                 0.000                   0.0




                               Ba         Hg         Pb         Pb       INST
                            TOTAL       DISS      TOTAL       DISS     DISCHG
                            80016      80111      82001      82101      97160
                          ug/L Hg    ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        2         11          0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          3         10         38
 MEAN                       0.133      0.100      0.006      0.002     1264.5
 MINIMUM                               0.100                 0.001       42.2
 DATE OF MINIMUM                  1982-03-15            1982-06-28 1984-09-06
 10TH PERCENTILE                       0.100                 0.001      129.1
 MEDIAN                                0.100                 0.002      563.6
 90TH PERCENTILE                       0.100                 0.003     2668.9
 MAXIMUM                               0.100                 0.004    12007.7
 DATE OF MAXIMUM                  1984-11-16            1983-03-29 1984-02-16
 STANDARD DEVIATION                    0.000                 0.001     2123.3





 STATION - COLORADO RIVER                           STATION NO. 028006
 COUNTRY - UNITED STATES                            DEPTH(M)       7.7
 LOCATION - OCT. 1  LAT. 36/00/55  LONG. 114/44/16  ELEVATION(M) 196.6
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-04 TO 1984-11-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          9         16         18         18
 MEAN                       1016.        0.1        0.4       0.30        8.8
 MINIMUM                     890.        0.0        0.2       0.10        6.5
 DATE OF MINIMUM       1984-09-05 1984-03-02 1984-01-05 1984-05-03 1982-01-04
 10TH PERCENTILE             898.                   0.2       0.18        6.7
 MEDIAN                     1060.        0.1        0.4       0.30        8.8
 90TH PERCENTILE            1100.                   0.6       0.40       10.4
 MAXIMUM                    1100.        0.1        0.8       0.40       11.3
 DATE OF MAXIMUM       1983-01-07 1983-11-07 1983-11-07 1984-01-05 1983-07-23
 STANDARD DEVIATION           79.        0.1        0.2       0.08        1.3




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          1         18         18         18
 MEAN                         0.3     131.00        28.        82.     79.000
 MINIMUM                      0.3                   25.        61.     73.000
 DATE OF MINIMUM       1982-07-07            1984-09-05 1984-11-14 1984-11-14
 10TH PERCENTILE              0.3                   25.        63.     73.800
 MEDIAN                       0.3                   28.        85.     79.000
 90TH PERCENTILE              0.4                   30.        91.     82.100
 MAXIMUM                      0.4                   30.        97.     84.000
 DATE OF MAXIMUM       1982-05-07            1983-03-05 1982-01-04 1983-11-07
 STANDARD DEVIATION           0.0                    1.        10.      3.106




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        1          8          0          6          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          4          3          6          2
 MEAN                       0.010      0.004       0.01       0.00       0.03
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-11-03            1982-03-09           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.00           
 MAXIMUM                               0.010                  0.01           
 DATE OF MAXIMUM                  1982-09-15            1984-09-05           
 STANDARD DEVIATION                    0.004                  0.00           




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        6          0          2          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          2         10          3         12
 MEAN                        0.00      0.004      0.003      0.007      0.001
 MINIMUM                     0.00                 0.001                 0.001
 DATE OF MINIMUM       1982-09-15            1982-05-07            1982-09-15
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.00                 0.002                 0.001
 90TH PERCENTILE             0.01                 0.004                 0.002
 MAXIMUM                     0.01                 0.004                 0.002
 DATE OF MAXIMUM       1982-05-07            1984-11-14            1982-05-07
 STANDARD DEVIATION          0.00                 0.001                 0.000




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          0         15          8          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12          3         10          1
 MEAN                       0.004      0.003         2.         5.      0.001
 MINIMUM                               0.002         1.         1.           
 DATE OF MINIMUM                  1983-09-23 1983-11-07 1984-11-14           
 10TH PERCENTILE                       0.002         1.         2.           
 MEDIAN                                0.002         2.         2.           
 90TH PERCENTILE                       0.003         2.         9.           
 MAXIMUM                               0.004         2.        26.           
 DATE OF MAXIMUM                  1982-03-09 1983-09-23 1983-01-07           
 STANDARD DEVIATION                    0.001         0.         7.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       12          0          0          0          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          3         12          3          5
 MEAN                       0.001        0.1        0.1      0.467      0.208
 MINIMUM                    0.001                   0.1                 0.100
 DATE OF MINIMUM       1982-03-09            1982-03-09            1982-05-07
 10TH PERCENTILE            0.001                   0.1                 0.100
 MEDIAN                     0.001                   0.1                 0.100
 90TH PERCENTILE            0.001                   0.1                 0.410
 MAXIMUM                    0.003                   0.1                 0.900
 DATE OF MAXIMUM       1982-05-07            1984-11-14            1983-09-23
 STANDARD DEVIATION         0.001                   0.0                 0.247






                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          7          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          5         18
 MEAN                       0.004      0.002      702.6
 MINIMUM                               0.001       70.0
 DATE OF MINIMUM                  1982-05-07 1983-03-05
 10TH PERCENTILE                       0.001      107.4
 MEDIAN                                0.001      827.9
 90TH PERCENTILE                       0.003     1025.8
 MAXIMUM                               0.004     1059.2
 DATE OF MAXIMUM                  1984-11-14 1984-07-03
 STANDARD DEVIATION                    0.001      356.1





 STATION - POTOMAC RIVER                            STATION NO. 028007
 COUNTRY - UNITED STATES                            DEPTH(M)       5.2
 LOCATION - OCT. 0  LAT. 38/55/46  LONG. 077/07/02  ELEVATION(M)   1.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-20 TO 1984-11-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2      NO2-N
                             COND       DISS                                 
                            02041      03101      07004      07105      07207
                            us/cm    mg/L Li     mg/L N     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          3          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          7         18         18          1
 MEAN                        305.        0.0        0.8       1.23       0.02
 MINIMUM                     146.        0.0        0.2       0.30           
 DATE OF MINIMUM       1984-02-16 1982-12-01 1983-02-09 1982-09-21           
 10TH PERCENTILE             173.        0.0        0.4       0.62           
 MEDIAN                      344.        0.0        0.7       1.25           
 90TH PERCENTILE             416.        0.0        1.5       1.57           
 MAXIMUM                     435.        0.0        2.3       2.50           
 DATE OF MAXIMUM       1984-11-14 1984-11-14 1983-11-15 1984-01-26           
 STANDARD DEVIATION          102.        0.0        0.5       0.53           




                               O2          F        ALK         Mg         Cl
                             DISS       DISS      TOTAL       DISS       DISS
                            08102      09104      10121      12102      17203
                          mg/L O2     mg/L F      MEQ/L    mg/L Mg    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          8          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18         10          1         18         18
 MEAN                        11.4        0.2     126.00         8.        14.
 MINIMUM                      7.6        0.1                    3.         4.
 DATE OF MINIMUM       1983-07-19 1982-01-20            1984-02-16 1983-05-25
 10TH PERCENTILE              7.7        0.1                    4.         6.
 MEDIAN                      11.9        0.1                    8.        14.
 90TH PERCENTILE             14.5        0.2                   11.        22.
 MAXIMUM                     14.6        0.5                   13.        30.
 DATE OF MAXIMUM       1983-02-09 1984-09-12            1983-09-13 1983-09-13
 STANDARD DEVIATION           2.5        0.1                    3.         8.




                               Ca         Cr         Cr         Mn         Mn
                             DISS      TOTAL       DISS      TOTAL       DISS
                            20103      24002      24052      25004      25104
                          mg/L Ca    mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          8          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          3          4          3         13
 MEAN                      33.556      0.023      0.005       0.10       0.01
 MINIMUM                   16.000                 0.001                  0.00
 DATE OF MINIMUM       1984-02-16            1983-04-20            1982-05-11
 10TH PERCENTILE           19.200                 0.001                  0.00
 MEDIAN                    37.500                 0.001                  0.01
 90TH PERCENTILE           43.400                 0.010                  0.02
 MAXIMUM                   49.000                 0.030                  0.05
 DATE OF MAXIMUM       1984-11-14            1982-03-16            1984-02-16
 STANDARD DEVIATION        10.280                 0.008                  0.01




                               Fe         Fe         Ni         Ni         Cu
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            26004      26104      28001      28102      29006
                          mg/L Fe    mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          1          0          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12          3         11          3
 MEAN                        0.94       0.04      0.044      0.003      0.010
 MINIMUM                                0.00                 0.001           
 DATE OF MINIMUM                  1982-05-11            1983-05-25           
 10TH PERCENTILE                        0.00                 0.001           
 MEDIAN                                 0.03                 0.002           
 90TH PERCENTILE                        0.07                 0.004           
 MAXIMUM                                0.19                 0.005           
 DATE OF MAXIMUM                  1984-02-16            1982-05-11           
 STANDARD DEVIATION                     0.05                 0.001           




                               Cu         As         As   FAEC COL       FAEC
                             DISS      TOTAL       DISS                 STREP
                            29105      33003      33104      36012      36102
                          mg/L Cu    mg/L As    mg/L As   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          2          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          3         11         16         16
 MEAN                       0.003      0.001      0.001       451.      4898.
 MINIMUM                    0.001                 0.001         2.         2.
 DATE OF MINIMUM       1984-11-14            1982-03-16 1982-01-20 1984-11-14
 10TH PERCENTILE            0.001                 0.001         4.        30.
 MEDIAN                     0.002                 0.001       210.       460.
 90TH PERCENTILE            0.006                 0.002      1280.      8320.
 MAXIMUM                    0.008                 0.002      2100.     51000.
 DATE OF MAXIMUM       1984-05-07            1983-09-13 1983-05-25 1984-02-16
 STANDARD DEVIATION         0.002                 0.000       615.     12262.




                               Cd         Cd         Ba         Ba         Ba
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            48001      48101      56001      56101      80016
                          mg/L Cd    mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg


 NO. OF L-FLAGGED VALUES        0         12          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          1          2         13          3
 MEAN                       0.002      0.001        0.1        0.0      0.167
 MINIMUM                               0.001                   0.0           
 DATE OF MINIMUM                  1982-03-16            1982-03-16           
 10TH PERCENTILE                       0.001                   0.0           
 MEDIAN                                0.001                   0.0           
 90TH PERCENTILE                       0.001                   0.1           
 MAXIMUM                               0.001                   0.1           
 DATE OF MAXIMUM                  1984-11-14            1983-11-15           
 STANDARD DEVIATION                    0.000                   0.0           




                               Hg         Pb         Pb       INST
                             DISS      TOTAL       DISS     DISCHG
                            80111      82001      82101      97160
                          ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        6          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        6          3         12         19
 MEAN                       0.158      0.010      0.002      697.5
 MINIMUM                    0.100                 0.001       35.4
 DATE OF MINIMUM       1982-03-16            1982-03-16 1983-08-12
 10TH PERCENTILE            0.100                 0.001       36.4
 MEDIAN                     0.100                 0.002      233.6
 90TH PERCENTILE            0.270                 0.005     1070.5
 MAXIMUM                    0.500                 0.005     6145.4
 DATE OF MAXIMUM       1982-12-01            1984-03-26 1984-02-16
 STANDARD DEVIATION         0.124                 0.002     1383.2





 STATION - DELAWARE RIVER                           STATION NO. 028008
 COUNTRY - UNITED STATES                            DEPTH(M)       1.4
 LOCATION - OCT. 0  LAT. 40/13/18  LONG. 074/46/42  ELEVATION(M)   3.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-28 TO 1984-11-27

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li        TOC     N KJEL     NO3NO2
                             COND       DISS                                 
                            02041      03101      06001      07004      07105
                            us/cm    mg/L Li     mg/L C     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          4          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       31          6          7         16         16
 MEAN                        182.        0.0         2.        0.6       1.22
 MINIMUM                      77.        0.0         1.        0.1       0.80
 DATE OF MINIMUM       1983-09-20 1982-11-08 1984-08-31 1984-11-14 1984-05-03
 10TH PERCENTILE             105.        0.0                   0.2       0.86
 MEDIAN                      180.        0.0         2.        0.5       1.25
 90TH PERCENTILE             234.        0.0                   1.0       1.53
 MAXIMUM                     260.        0.0         3.        1.8       1.60
 DATE OF MAXIMUM       1984-09-18 1984-11-14 1984-06-26 1983-12-14 1984-09-24
 STANDARD DEVIATION           45.        0.0         1.        0.4       0.25




                            NO2-N         O2        BOD          F        ALK
                                        DISS                  DISS      TOTAL
                            07207      08102      08201      09104      10121
                           mg/L N    mg/L O2    mg/L O2     mg/L F      MEQ/L


 NO. OF L-FLAGGED VALUES        0          0          0         15          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         25         16         16         12
 MEAN                        0.03       11.0         3.        0.1      43.75
 MINIMUM                                 7.0         1.        0.1      13.00
 DATE OF MINIMUM                  1983-08-31 1982-09-09 1982-01-28 1983-11-28
 10TH PERCENTILE                         8.1         1.        0.1      15.20
 MEDIAN                                 10.2         2.        0.1      45.50
 90TH PERCENTILE                        13.8         4.        0.1      60.50
 MAXIMUM                                15.9         6.        0.2      68.00
 DATE OF MAXIMUM                  1984-03-14 1982-11-08 1983-07-11 1984-09-18
 STANDARD DEVIATION                      2.3         1.        0.0      16.13




                               Mg         Cl    LINDANE      MIREX     ALDRIN
                             DISS       DISS                                 
                            12102      17203      18070      18125      18130
                          mg/L Mg    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          1          2          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       31         31          0          0          0
 MEAN                          6.        12.      0.010      0.010      0.010
 MINIMUM                       2.         6.                                 
 DATE OF MINIMUM       1983-12-14 1983-12-14                                 
 10TH PERCENTILE               3.         8.                                 
 MEDIAN                        5.        12.                                 
 90TH PERCENTILE               8.        17.                                 
 MAXIMUM                       9.        19.                                 
 DATE OF MAXIMUM       1984-09-18 1984-01-18                                 
 STANDARD DEVIATION            2.         3.                                 




                           ENDRIN   DIELDRIN         Ca         Cr         Cr
                                                   DISS      TOTAL       DISS
                            18140      18150      20103      24002      24052
                             ug/L       ug/L    mg/L Ca    mg/L Cr    mg/L Cr


 NO. OF L-FLAGGED VALUES        2          2          0          1          9
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0         31          2          4
 MEAN                       0.010      0.010     17.374      0.010      0.004
 MINIMUM                                          8.600                 0.001
 DATE OF MINIMUM                             1984-04-09            1982-11-08
 10TH PERCENTILE                                 11.200                 0.001
 MEDIAN                                          17.000                 0.001
 90TH PERCENTILE                                 22.000                 0.010
 MAXIMUM                                         24.000                 0.010
 DATE OF MAXIMUM                             1984-09-24            1982-09-09
 STANDARD DEVIATION                               4.051                 0.004




                               Mn         Mn         Fe         Fe         Ni
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            25004      25104      26004      26104      28001
                          mg/L Mn    mg/L Mn    mg/L Fe    mg/L Fe    mg/L Ni


 NO. OF L-FLAGGED VALUES        0          1          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         24          3         25          3
 MEAN                        0.05       0.01       0.27       0.04      0.005
 MINIMUM                                0.00                  0.01           
 DATE OF MINIMUM                  1982-05-19            1982-05-19           
 10TH PERCENTILE                        0.00                  0.01           
 MEDIAN                                 0.01                  0.03           
 90TH PERCENTILE                        0.04                  0.06           
 MAXIMUM                                0.06                  0.18           
 DATE OF MAXIMUM                  1983-03-02            1984-01-18           
 STANDARD DEVIATION                     0.02                  0.04           




                               Ni         Cu         Cu         As         As
                             DISS      TOTAL       DISS      TOTAL       DISS
                            28102      29006      29105      33003      33104
                          mg/L Ni    mg/L Cu    mg/L Cu    mg/L As    mg/L As


 NO. OF L-FLAGGED VALUES        0          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          3         13          3         11
 MEAN                       0.002      0.008      0.003      0.001      0.001
 MINIMUM                    0.001                 0.002                 0.001
 DATE OF MINIMUM       1982-03-15            1983-12-14            1982-03-15
 10TH PERCENTILE            0.001                 0.002                 0.001
 MEDIAN                     0.002                 0.003                 0.001
 90TH PERCENTILE            0.004                 0.005                 0.002
 MAXIMUM                    0.006                 0.005                 0.002
 DATE OF MAXIMUM       1983-02-24            1984-06-26            1984-08-31
 STANDARD DEVIATION         0.001                 0.001                 0.000




                         FAEC COL       FAEC         Cd         Cd         Ba
                                       STREP      TOTAL       DISS      TOTAL
                            36012      36102      48001      48101      56001
                         No/100ml   No/100ml    mg/L Cd    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        0          0          1         11          1
 NO. OF G-FLAGGED VALUES        1          1          0          0          0
 NO. OF UNFLAGGED VALUES       11         13          2          2          2
 MEAN                        178.      1053.      0.002      0.001        0.1
 MINIMUM                       4.         4.                 0.001           
 DATE OF MINIMUM       1982-01-28 1984-11-14            1982-03-15           
 10TH PERCENTILE               5.        23.                 0.001           
 MEDIAN                       45.       544.                 0.001           
 90TH PERCENTILE             363.      2650.                 0.001           
 MAXIMUM                    1200.      3700.                 0.001           
 DATE OF MAXIMUM       1983-12-14 1983-12-14            1984-11-14           
 STANDARD DEVIATION          346.      1180.                 0.000           




                               Ba         Ba         Hg         Pb         Pb
                             DISS      TOTAL       DISS      TOTAL       DISS
                            56101      80016      80111      82001      82101
                          mg/L Ba    ug/L Hg    ug/L Hg    mg/L Pb    mg/L Pb


 NO. OF L-FLAGGED VALUES        0          1          4          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          2          9          3         11
 MEAN                         0.0      0.167      0.192      0.007      0.003
 MINIMUM                      0.0                 0.100                 0.001
 DATE OF MINIMUM       1982-03-15            1982-03-15            1982-09-09
 10TH PERCENTILE              0.0                 0.100                 0.001
 MEDIAN                       0.0                 0.100                 0.002
 90TH PERCENTILE              0.0                 0.400                 0.005
 MAXIMUM                      0.0                 0.500                 0.011
 DATE OF MAXIMUM       1984-11-14            1983-06-24            1983-02-24
 STANDARD DEVIATION           0.0                 0.144                 0.003




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       52
 MEAN                      1118.5
 MINIMUM                     83.8
 DATE OF MINIMUM       1983-09-20
 10TH PERCENTILE            104.0
 MEDIAN                     434.8
 90TH PERCENTILE           3540.0
 MAXIMUM                   3908.2
 DATE OF MAXIMUM       1983-04-17
 STANDARD DEVIATION        1306.4





 STATION - OHIO RIVER                               STATION NO. 028009
 COUNTRY - UNITED STATES                            DEPTH(M)      11.2
 LOCATION - OCT. 0  LAT. 37/12/13  LONG. 089/02/27  ELEVATION(M)  94.3
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-26 TO 1984-12-19

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li          B         CN     N KJEL
                             COND       DISS      TOTAL                      
                            02041      03101      05001      06606      07004
                            us/cm    mg/L Li     mg/L B    mg/L Cn     mg/L N


 NO. OF L-FLAGGED VALUES        0          6          1          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       21          4          3          0         21
 MEAN                        275.        0.0        0.1      0.008        0.7
 MINIMUM                     201.        0.0        0.0      0.005        0.4
 DATE OF MINIMUM       1982-01-26 1982-10-26 1982-09-27 1983-10-26 1982-07-12
 10TH PERCENTILE             213.        0.0                              0.4
 MEDIAN                      280.        0.0        0.1      0.010        0.6
 90TH PERCENTILE             320.        0.0                              0.8
 MAXIMUM                     403.        0.0        0.1      0.010        2.2
 DATE OF MAXIMUM       1983-10-26 1984-12-19 1984-04-25 1983-06-07 1983-11-17
 STANDARD DEVIATION           47.        0.0        0.1      0.003        0.4




                           NO3NO2         O2        COD          F        ALK
                                        DISS                  DISS      TOTAL
                            07105      08102      08301      09104      10121
                           mg/L N    mg/L O2    mg/L O2     mg/L F      MEQ/L


 NO. OF L-FLAGGED VALUES        0          0          0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22         20          9         16          2
 MEAN                        1.01        9.4        17.        0.1      91.00
 MINIMUM                     0.20        6.2         8.        0.1           
 DATE OF MINIMUM       1983-08-23 1983-08-23 1983-08-23 1982-01-26           
 10TH PERCENTILE             0.47        6.2                   0.1           
 MEDIAN                      1.10        9.2        13.        0.1           
 90TH PERCENTILE             1.46       12.4                   0.2           
 MAXIMUM                     1.90       13.8        31.        0.2           
 DATE OF MAXIMUM       1982-03-08 1982-01-26 1984-03-14 1982-12-07           
 STANDARD DEVIATION          0.40        2.3         9.        0.1           




                               Mg         Mg         Cl      MIREX     ALDRIN
                            TOTAL       DISS       DISS                      
                            12002      12102      17203      18125      18130
                          mg/L Mg    mg/L Mg    mg/L Cl       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          0          2          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5         20         20          0          0
 MEAN                          9.         8.        12.      0.010      0.010
 MINIMUM                       6.         5.         3.                      
 DATE OF MINIMUM       1982-09-27 1982-01-26 1983-11-17                      
 10TH PERCENTILE                          6.         7.                      
 MEDIAN                        7.         8.        12.                      
 90TH PERCENTILE                          9.        16.                      
 MAXIMUM                      14.        11.        17.                      
 DATE OF MAXIMUM       1983-10-26 1982-05-11 1984-08-23                      
 STANDARD DEVIATION            3.         2.         3.                      




                           ENDRIN   DIELDRIN         Ca         Ca         Cr
                                                  TOTAL       DISS      TOTAL
                            18140      18150      20003      20103      24002
                             ug/L       ug/L    mg/L Ca    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        2          2          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          5         20          6
 MEAN                       0.010      0.010     33.400     31.000      0.010
 MINIMUM                                         27.000     22.000      0.005
 DATE OF MINIMUM                             1982-09-27 1983-08-23 1982-09-27
 10TH PERCENTILE                                            24.000           
 MEDIAN                                          32.000     32.000      0.007
 90TH PERCENTILE                                            34.000           
 MAXIMUM                                         42.000     42.000      0.020
 DATE OF MAXIMUM                             1983-10-26 1982-05-11 1982-05-11
 STANDARD DEVIATION                               5.814      4.353      0.006




                               Cr         Mn         Mn         Fe         Fe
                             DISS      TOTAL       DISS      TOTAL       DISS
                            24052      25004      25104      26004      26104
                          mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe    mg/L Fe


 NO. OF L-FLAGGED VALUES        9          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          8         14          8         12
 MEAN                       0.005       0.24       0.01       2.84       0.03
 MINIMUM                    0.001       0.11       0.00       0.70       0.00
 DATE OF MINIMUM       1983-11-17 1982-05-11 1982-05-11 1982-05-11 1982-05-11
 10TH PERCENTILE            0.001                  0.00                  0.00
 MEDIAN                     0.002       0.22       0.01       2.30       0.02
 90TH PERCENTILE            0.010                  0.02                  0.05
 MAXIMUM                    0.012       0.44       0.06       6.10       0.06
 DATE OF MAXIMUM       1983-04-25 1982-01-26 1983-11-17 1982-01-26 1984-01-05
 STANDARD DEVIATION         0.004       0.13       0.02       2.08       0.02




                               Ni         Ni         Cu         Cu         As
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            28001      28102      29006      29105      33003
                          mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu    mg/L As


 NO. OF L-FLAGGED VALUES        2          3          2          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6         11          6         13          7
 MEAN                       0.009      0.003      0.010      0.004      0.002
 MINIMUM                    0.005      0.001      0.005      0.001      0.001
 DATE OF MINIMUM       1983-06-07 1982-01-26 1983-11-17 1983-06-07 1982-07-12
 10TH PERCENTILE                       0.001                 0.001           
 MEDIAN                     0.007      0.002      0.008      0.004      0.002
 90TH PERCENTILE                       0.005                 0.005           
 MAXIMUM                    0.019      0.006      0.016      0.019      0.003
 DATE OF MAXIMUM       1983-10-26 1982-10-26 1982-09-27 1983-04-25 1984-04-25
 STANDARD DEVIATION         0.006      0.002      0.005      0.004      0.001




                               As   FAEC COL       FAEC         Cd         Cd
                             DISS                 STREP      TOTAL       DISS
                            33104      36012      36102      48001      48101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Cd


 NO. OF L-FLAGGED VALUES        1          0          0          5          9
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         19         19          3          5
 MEAN                       0.001       265.       901.      0.003      0.002
 MINIMUM                    0.001         8.         9.      0.001      0.001
 DATE OF MINIMUM       1982-01-26 1984-08-23 1982-05-11 1982-01-26 1982-01-26
 10TH PERCENTILE            0.001         9.        24.                 0.001
 MEDIAN                     0.001        99.       211.      0.003      0.001
 90TH PERCENTILE            0.001       632.      1844.                 0.002
 MAXIMUM                    0.002      2000.      6400.      0.003      0.003
 DATE OF MAXIMUM       1982-10-26 1982-01-26 1982-01-26 1984-04-25 1983-06-07
 STANDARD DEVIATION         0.000       471.      1540.      0.001      0.001




                               Ba         Ba         Ba         Hg         Pb
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            56001      56101      80016      80111      82001
                          mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        2          0          4          3          5
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6         14          3         10          3
 MEAN                         0.1        0.0      0.186      0.192      0.035
 MINIMUM                      0.0        0.0      0.100      0.100      0.005
 DATE OF MINIMUM       1982-09-27 1982-01-26 1982-05-11 1982-05-11 1982-05-11
 10TH PERCENTILE                         0.0                 0.100           
 MEDIAN                       0.1        0.0      0.100      0.200      0.050
 90TH PERCENTILE                         0.0                 0.370           
 MAXIMUM                      0.1        0.1      0.500      0.400      0.050
 DATE OF MAXIMUM       1982-07-12 1983-11-17 1982-01-26 1983-11-17 1984-04-25
 STANDARD DEVIATION           0.0        0.0      0.146      0.112      0.021




                               Pb       INST
                             DISS     DISCHG
                            82101      97160
                          mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        1          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES       13         19
 MEAN                       0.007     9337.9
 MINIMUM                    0.001     2061.7
 DATE OF MINIMUM       1983-06-07 1982-10-26
 10TH PERCENTILE            0.001     2219.7
 MEDIAN                     0.003     8496.0
 90TH PERCENTILE            0.007    18784.6
 MAXIMUM                    0.050    21693.1
 DATE OF MAXIMUM       1982-09-27 1982-01-26
 STANDARD DEVIATION         0.013     6334.9





 STATION - RIO GRANDE                               STATION NO. 028010
 COUNTRY - UNITED STATES                            DEPTH(M)       1.9
 LOCATION - OCT. 1  LAT. 25/52/35  LONG. 097/27/15  ELEVATION(M)   2.7
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-02-24 TO 1984-11-01

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          8          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       15          9         13          5         13
 MEAN                       1393.        0.1        1.0       0.18        8.9
 MINIMUM                    1050.        0.1        0.5       0.10        5.5
 DATE OF MINIMUM       1982-05-26 1982-11-04 1984-01-24 1982-02-24 1982-05-26
 10TH PERCENTILE            1095.                   0.5       0.10        6.2
 MEDIAN                     1400.        0.1        0.9       0.10        8.4
 90TH PERCENTILE            1590.                   1.2       0.27       11.1
 MAXIMUM                    1750.        0.1        2.5       0.70       12.0
 DATE OF MAXIMUM       1984-09-17 1984-11-01 1982-05-26 1982-05-26 1984-01-24
 STANDARD DEVIATION          188.        0.0        0.5       0.17        1.7




                              BOD          F        ALK         Mg         Cl
                                        DISS      TOTAL       DISS       DISS
                            08201      09104      10121      12102      17203
                          mg/L O2     mg/L F      MEQ/L    mg/L Mg    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13         13         15         15         15
 MEAN                          3.        0.8     128.20        27.       191.
 MINIMUM                       1.        0.5      95.00        16.       140.
 DATE OF MINIMUM       1984-01-24 1982-05-26 1982-05-26 1982-05-26 1982-02-24
 10TH PERCENTILE               1.        0.5      99.00        20.       145.
 MEDIAN                        3.        0.8     130.00        27.       180.
 90TH PERCENTILE               4.        1.0     150.00        31.       230.
 MAXIMUM                       4.        1.0     160.00        33.       270.
 DATE OF MAXIMUM       1983-07-27 1984-11-01 1983-07-27 1984-09-17 1984-09-17
 STANDARD DEVIATION            1.        0.1      17.70         4.        38.




                            MIREX     ALDRIN     ENDRIN   DIELDRIN         Ca
                                                                         DISS
                            18125      18130      18140      18150      20103
                             ug/L       ug/L       ug/L       ug/L    mg/L Ca


 NO. OF L-FLAGGED VALUES        2          2          2          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0          0         15
 MEAN                       0.010      0.010      0.010      0.010     89.200
 MINIMUM                                                               64.000
 DATE OF MINIMUM                                                   1982-05-26
 10TH PERCENTILE                                                       72.000
 MEDIAN                                                                90.000
 90TH PERCENTILE                                                       98.500
 MAXIMUM                                                              100.000
 DATE OF MAXIMUM                                                   1984-03-20
 STANDARD DEVIATION                                                     9.726




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        1         10          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          2          3          7          3
 MEAN                       0.013      0.003       0.36       0.00       8.11
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-11-04            1982-02-24           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.02           
 MAXIMUM                               0.010                  0.02           
 DATE OF MAXIMUM                  1982-08-19            1984-01-24           
 STANDARD DEVIATION                    0.004                  0.01           




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        6          0          2          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          3         10          3         10
 MEAN                        0.01      0.007      0.002      0.014      0.002
 MINIMUM                     0.00                 0.001                 0.001
 DATE OF MINIMUM       1982-08-19            1982-05-26            1982-08-19
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.00                 0.002                 0.001
 90TH PERCENTILE             0.01                 0.004                 0.002
 MAXIMUM                     0.02                 0.004                 0.014
 DATE OF MAXIMUM       1982-05-26            1984-05-03            1982-02-24
 STANDARD DEVIATION          0.01                 0.001                 0.004




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          0          0          0          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12         13         13          0
 MEAN                       0.004      0.003      2567.       923.      0.001
 MINIMUM                               0.002        47.        13.           
 DATE OF MINIMUM                  1983-01-26 1982-02-24 1984-05-03           
 10TH PERCENTILE                       0.002        47.        18.           
 MEDIAN                                0.003       400.       200.           
 90TH PERCENTILE                       0.004      8160.      2330.           
 MAXIMUM                               0.005     11000.      5900.           
 DATE OF MAXIMUM                  1983-07-27 1982-09-22 1982-05-26           
 STANDARD DEVIATION                    0.001      3815.      1681.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       11          1          0          1         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          2         12          2          2
 MEAN                       0.001        0.2        0.1      0.167      0.100
 MINIMUM                    0.001                   0.1                 0.100
 DATE OF MINIMUM       1982-02-24            1982-02-24            1982-02-24
 10TH PERCENTILE            0.001                   0.1                 0.100
 MEDIAN                     0.001                   0.1                 0.100
 90TH PERCENTILE            0.001                   0.1                 0.100
 MAXIMUM                    0.001                   0.1                 0.100
 DATE OF MAXIMUM       1984-11-01            1984-11-01            1984-11-01
 STANDARD DEVIATION         0.000                   0.0                 0.000




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          7         17
 MEAN                       0.007      0.002       40.9
 MINIMUM                               0.001        0.2
 DATE OF MINIMUM                  1982-02-24 1983-01-26
 10TH PERCENTILE                       0.001        0.6
 MEDIAN                                0.001       11.5
 90TH PERCENTILE                       0.003      155.5
 MAXIMUM                               0.004      199.4
 DATE OF MAXIMUM                  1984-07-16 1983-02-28
 STANDARD DEVIATION                    0.001       63.9





 STATION - SACRAMENTO RIVER                         STATION NO. 028011
 COUNTRY - UNITED STATES                            DEPTH(M)       5.8
 LOCATION - OCT. 1  LAT. 38/27/20  LONG. 121/30/07  ELEVATION(M)   1.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-05 TO 1984-12-20

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2      NO2-N
                             COND       DISS                                 
                            02041      03101      07004      07105      07207
                            us/cm    mg/L Li     mg/L N     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          5          3          5          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       19          4         14         12          1
 MEAN                        103.        0.0        0.5       0.14       0.01
 MINIMUM                      23.        0.0        0.2       0.10           
 DATE OF MINIMUM       1984-09-13 1982-12-20 1984-02-09 1982-05-19           
 10TH PERCENTILE              31.                   0.2       0.10           
 MEDIAN                      109.        0.0        0.4       0.10           
 90TH PERCENTILE             147.                   0.8       0.23           
 MAXIMUM                     169.        0.0        1.2       0.30           
 DATE OF MAXIMUM       1984-02-09 1984-12-19 1982-12-20 1984-02-09           
 STANDARD DEVIATION           45.        0.0        0.3       0.07           




                               O2          F        ALK         Mg         Cl
                             DISS       DISS      TOTAL       DISS       DISS
                            08102      09104      10121      12102      17203
                          mg/L O2     mg/L F      MEQ/L    mg/L Mg    mg/L Cl


 NO. OF L-FLAGGED VALUES        0         15          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       19          3         18         18         18
 MEAN                        10.3        0.1      43.83         4.         4.
 MINIMUM                      8.4        0.1      11.00         0.         0.
 DATE OF MINIMUM       1984-08-30 1982-01-12 1984-09-13 1984-09-13 1984-09-13
 10TH PERCENTILE              8.6        0.1      15.00         1.         1.
 MEDIAN                      10.3        0.1      48.00         5.         4.
 90TH PERCENTILE             11.8        0.1      60.50         6.         5.
 MAXIMUM                     12.6        0.1      70.00         7.         6.
 DATE OF MAXIMUM       1984-12-20 1984-12-20 1984-08-30 1984-02-09 1984-02-09
 STANDARD DEVIATION           1.2        0.0      18.05         2.         2.




                            MIREX     ALDRIN     ENDRIN   DIELDRIN         Ca
                                                                         DISS
                            18125      18130      18140      18150      20103
                             ug/L       ug/L       ug/L       ug/L    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          1          1         18
 MEAN                       0.000      0.000      0.000      0.000      8.883
 MINIMUM                                                                2.400
 DATE OF MINIMUM                                                   1984-09-13
 10TH PERCENTILE                                                        3.040
 MEDIAN                                                                10.000
 90TH PERCENTILE                                                       12.100
 MAXIMUM                                                               13.000
 DATE OF MAXIMUM                                                   1984-12-19
 STANDARD DEVIATION                                                     3.425





                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        2          9          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          3          3         13          3
 MEAN                       0.010      0.004       0.05       0.00       2.00
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-12-20            1982-05-19           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.01           
 MAXIMUM                               0.010                  0.01           
 DATE OF MAXIMUM                  1982-09-29            1983-08-30           
 STANDARD DEVIATION                    0.004                  0.01           




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          5          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          3          7          3         12
 MEAN                        0.06      0.009      0.001      0.014      0.002
 MINIMUM                     0.01                 0.001                 0.001
 DATE OF MINIMUM       1983-09-21            1982-01-12            1983-03-09
 10TH PERCENTILE             0.01                 0.001                 0.001
 MEDIAN                      0.04                 0.001                 0.002
 90TH PERCENTILE             0.10                 0.003                 0.004
 MAXIMUM                     0.14                 0.003                 0.005
 DATE OF MAXIMUM       1982-01-12            1982-09-29            1982-12-20
 STANDARD DEVIATION          0.04                 0.001                 0.001




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          3          0          0          1
 NO. OF G-FLAGGED VALUES        0          0          1          1          0
 NO. OF UNFLAGGED VALUES        3         10         13         12          2
 MEAN                       0.001      0.001       170.       314.      0.002
 MINIMUM                               0.001        11.         5.           
 DATE OF MINIMUM                  1982-01-12 1984-03-06 1984-03-06           
 10TH PERCENTILE                       0.001        14.         5.           
 MEDIAN                                0.001        42.        69.           
 90TH PERCENTILE                       0.001       330.       880.           
 MAXIMUM                               0.002      1200.      2000.           
 DATE OF MAXIMUM                  1984-02-09 1982-04-01 1982-04-01           
 STANDARD DEVIATION                    0.000       315.       586.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES        8          2          1          0         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          1         11          2          2
 MEAN                       0.001        0.1        0.0      0.250      0.117
 MINIMUM                    0.001                   0.0                 0.100
 DATE OF MINIMUM       1982-09-29            1982-05-19            1982-01-12
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001                   0.0                 0.100
 90TH PERCENTILE            0.002                   0.0                 0.100
 MAXIMUM                    0.003                   0.1                 0.300
 DATE OF MAXIMUM       1982-05-19            1982-01-12            1984-02-09
 STANDARD DEVIATION         0.001                   0.0                 0.058




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          7        117
 MEAN                       0.003      0.002     1175.1
 MINIMUM                               0.001        9.3
 DATE OF MINIMUM                  1982-01-12 1984-09-13
 10TH PERCENTILE                       0.001      518.8
 MEDIAN                                0.002      928.9
 90TH PERCENTILE                       0.004     2216.3
 MAXIMUM                               0.004     2789.5
 DATE OF MAXIMUM                  1984-12-19 1982-02-17
 STANDARD DEVIATION                    0.001      667.8





 STATION - ARKANSAS RIVER                           STATION NO. 028012
 COUNTRY - UNITED STATES                            DEPTH(M)       5.3
 LOCATION - OCT. 1  LAT. 34/40/07  LONG. 092/09/18  ELEVATION(M)  70.4
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-02-12 TO 1984-12-06

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          4          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          4         19         13         19
 MEAN                        503.        0.0        0.9       0.39        9.6
 MINIMUM                     135.        0.0        0.3       0.10        7.0
 DATE OF MINIMUM       1984-12-06 1983-02-24 1984-12-06 1982-10-28 1982-07-27
 10TH PERCENTILE             219.                   0.4       0.10        7.1
 MEDIAN                      500.        0.0        0.7       0.45       10.4
 90TH PERCENTILE             766.                   1.5       0.70       11.9
 MAXIMUM                     885.        0.0        2.8       0.80       12.3
 DATE OF MAXIMUM       1983-08-29 1984-10-03 1982-02-12 1983-04-25 1982-02-12
 STANDARD DEVIATION          200.        0.0        0.6       0.25        1.8




                              BOD        COD          F        ALK         Mg
                                                   DISS      TOTAL       DISS
                            08201      08301      09104      10121      12102
                          mg/L O2    mg/L O2     mg/L F      MEQ/L    mg/L Mg


 NO. OF L-FLAGGED VALUES        0          0          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1         17          1         17
 MEAN                          1.        17.        0.2      58.00         7.
 MINIMUM                                            0.1                    3.
 DATE OF MINIMUM                             1982-02-12            1984-12-06
 10TH PERCENTILE                                    0.1                    4.
 MEDIAN                                             0.2                    7.
 90TH PERCENTILE                                    0.2                   11.
 MAXIMUM                                            0.3                   13.
 DATE OF MAXIMUM                             1983-08-29            1983-08-29
 STANDARD DEVIATION                                 0.1                    3.




                               Cl         Ca         Cr         Cr         Mn
                             DISS       DISS      TOTAL       DISS      TOTAL
                            17203      20103      24002      24052      25004
                          mg/L Cl    mg/L Ca    mg/L Cr    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18         17          4          3          3
 MEAN                         81.     33.059      0.014      0.004       0.09
 MINIMUM                      11.     12.000      0.004      0.001           
 DATE OF MINIMUM       1984-12-06 1984-12-06 1983-01-04 1982-12-28           
 10TH PERCENTILE              29.     15.500                 0.001           
 MEDIAN                       76.     34.000      0.015      0.001           
 90TH PERCENTILE             140.     47.000                 0.010           
 MAXIMUM                     160.     49.000      0.020      0.010           
 DATE OF MAXIMUM       1983-08-29 1982-10-28 1982-07-27 1982-07-27           
 STANDARD DEVIATION           42.     10.603      0.008      0.004           





                               Mn         Fe         Fe         Ni         Ni
                             DISS      TOTAL       DISS      TOTAL       DISS
                            25104      26004      26104      28001      28102
                          mg/L Mn    mg/L Fe    mg/L Fe    mg/L Ni    mg/L Ni


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          3         11          3         12
 MEAN                        0.01       1.34       0.06      0.006      0.003
 MINIMUM                     0.00                  0.01                 0.001
 DATE OF MINIMUM       1982-07-27            1983-08-29            1982-04-07
 10TH PERCENTILE             0.00                  0.01                 0.001
 MEDIAN                      0.00                  0.03                 0.003
 90TH PERCENTILE             0.01                  0.15                 0.006
 MAXIMUM                     0.04                  0.21                 0.009
 DATE OF MAXIMUM       1984-01-17            1982-04-07            1983-02-24
 STANDARD DEVIATION          0.01                  0.07                 0.003




                               Cu         Cu         As         As   FAEC COL
                            TOTAL       DISS      TOTAL       DISS           
                            29006      29105      33003      33104      36012
                          mg/L Cu    mg/L Cu    mg/L As    mg/L As   No/100ml


 NO. OF L-FLAGGED VALUES        1          0          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12          3         12         18
 MEAN                       0.014      0.004      0.002      0.001       289.
 MINIMUM                    0.010      0.002      0.001      0.000         1.
 DATE OF MINIMUM       1982-04-07 1983-06-17 1982-02-12 1982-02-12 1982-10-28
 10TH PERCENTILE                       0.002                 0.000        10.
 MEDIAN                     0.012      0.004      0.002      0.001        96.
 90TH PERCENTILE                       0.005                 0.002       930.
 MAXIMUM                    0.023      0.007      0.005      0.003      1300.
 DATE OF MAXIMUM       1982-02-12 1982-07-27 1983-01-04 1983-08-29 1984-10-03
 STANDARD DEVIATION         0.006      0.002      0.002      0.001       419.




                             FAEC         Cd         Cd         Ba         Ba
                            STREP      TOTAL       DISS      TOTAL       DISS
                            36102      48001      48101      56001      56101
                         No/100ml    mg/L Cd    mg/L Cd    mg/L Ba    mg/L Ba


 NO. OF L-FLAGGED VALUES        0          2         10          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          2          1          3         11
 MEAN                        382.      0.001      0.001        0.2        0.1
 MINIMUM                       0.      0.001      0.001                   0.0
 DATE OF MINIMUM       1983-08-29 1982-02-12 1982-02-12            1982-02-12
 10TH PERCENTILE               1.                 0.001                   0.0
 MEDIAN                       86.      0.001      0.001                   0.1
 90TH PERCENTILE            1190.                 0.001                   0.1
 MAXIMUM                    2000.      0.001      0.001                   0.3
 DATE OF MAXIMUM       1982-12-28 1983-01-04 1984-10-03            1982-04-07
 STANDARD DEVIATION          650.      0.000      0.000                   0.1




                               Ba         Hg         Pb         Pb       INST
                            TOTAL       DISS      TOTAL       DISS     DISCHG
                            80016      80111      82001      82101      97160
                          ug/L Hg    ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        2          3          0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          9          3          9         18
 MEAN                       0.100      0.183      0.009      0.005     1556.9
 MINIMUM                               0.100                 0.001        9.3
 DATE OF MINIMUM                  1982-02-12            1982-04-07 1984-10-03
 10TH PERCENTILE                       0.100                 0.001      117.0
 MEDIAN                                0.100                 0.003     1179.6
 90TH PERCENTILE                       0.270                 0.006     3786.4
 MAXIMUM                               0.700                 0.027     4559.5
 DATE OF MAXIMUM                  1983-02-24            1983-02-24 1984-04-04
 STANDARD DEVIATION                    0.175                 0.007     1409.0





 STATION - DISMAL RIVER                             STATION NO. 028013
 COUNTRY - UNITED STATES                            DEPTH(M)       0.5
 LOCATION - OCT. 1  LAT. 41/46/45  LONG. 100/31/30  ELEVATION(M) 854.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-18 TO 1984-11-20

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li        TOC         CN     N KJEL
                             COND       DISS                                 
                            02041      03101      06001      06606      07004
                            us/cm    mg/L Li     mg/L C    mg/L Cn     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       15          6          4          0         14
 MEAN                        221.        0.0         2.      0.010        0.9
 MINIMUM                     156.        0.0         1.                   0.3
 DATE OF MINIMUM       1984-08-21 1982-05-11 1982-09-23            1984-11-20
 10TH PERCENTILE             162.                                         0.3
 MEDIAN                      174.        0.0         2.                   0.7
 90TH PERCENTILE             181.                                         1.5
 MAXIMUM                     890.        0.0         3.                   2.4
 DATE OF MAXIMUM       1984-09-10 1984-11-20 1982-07-08            1984-08-21
 STANDARD DEVIATION          185.        0.0         1.                   0.6




                           NO3NO2         O2          F         Mg         Cl
                                        DISS       DISS       DISS       DISS
                            07105      08102      09104      12102      17203
                           mg/L N    mg/L O2     mg/L F    mg/L Mg    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         15         14         14         14
 MEAN                        0.50        9.4        0.3         3.         0.
 MINIMUM                     0.34        7.3        0.3         3.         0.
 DATE OF MINIMUM       1982-05-11 1983-08-09 1982-05-11 1982-01-18 1982-01-18
 10TH PERCENTILE             0.36        7.6        0.3         3.         0.
 MEDIAN                      0.45        9.5        0.3         3.         0.
 90TH PERCENTILE             0.50       10.7        0.4         3.         1.
 MAXIMUM                     1.20       11.3        0.5         3.         1.
 DATE OF MAXIMUM       1982-01-18 1982-11-24 1982-03-09 1984-11-20 1982-09-23
 STANDARD DEVIATION          0.21        1.2        0.1         0.         1.




                               Ca         Cr         Cr         Mn         Mn
                             DISS      TOTAL       DISS      TOTAL       DISS
                            20103      24002      24052      25004      25104
                          mg/L Ca    mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          1          4          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14          0          2          1          6
 MEAN                      22.857      0.010      0.001       0.07       0.00
 MINIMUM                   21.000                 0.001                  0.00
 DATE OF MINIMUM       1984-08-21            1982-05-11            1982-05-11
 10TH PERCENTILE           21.400                                            
 MEDIAN                    23.000                 0.001                  0.00
 90TH PERCENTILE           24.000                                            
 MAXIMUM                   24.000                 0.002                  0.01
 DATE OF MAXIMUM       1984-11-20            1984-05-11            1984-05-11
 STANDARD DEVIATION         0.864                 0.000                  0.01




                               Fe         Fe         Ni         Cu         Cu
                            TOTAL       DISS       DISS      TOTAL       DISS
                            26004      26104      28102      29006      29105
                          mg/L Fe    mg/L Fe    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          2          0          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          6          3          1          3
 MEAN                        1.10       0.04      0.001      0.010      0.006
 MINIMUM                                0.02      0.001                 0.001
 DATE OF MINIMUM                  1982-05-11 1982-11-24            1982-11-24
 10TH PERCENTILE                                                             
 MEDIAN                                 0.03      0.001                 0.001
 90TH PERCENTILE                                                             
 MAXIMUM                                0.07      0.002                 0.030
 DATE OF MAXIMUM                  1983-05-12 1984-11-20            1982-05-11
 STANDARD DEVIATION                     0.02      0.001                 0.012




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          0          0          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          6         15         15          0
 MEAN                       0.007      0.005       255.      1552.      0.001
 MINIMUM                               0.004         6.        28.           
 DATE OF MINIMUM                  1983-11-21 1982-01-18 1982-03-09           
 10TH PERCENTILE                                    11.        34.           
 MEDIAN                                0.005        73.       149.           
 90TH PERCENTILE                                   594.      1664.           
 MAXIMUM                               0.006      1800.     18000.           
 DATE OF MAXIMUM                  1982-11-24 1984-08-21 1984-08-21           
 STANDARD DEVIATION                    0.001       477.      4602.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES        6          1          0          0          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          6          1          2
 MEAN                       0.001        0.1        0.1      0.200      0.417
 MINIMUM                    0.001                   0.0                 0.100
 DATE OF MINIMUM       1982-11-24            1983-11-21            1982-11-24
 10TH PERCENTILE                                                             
 MEDIAN                     0.001                   0.1                 0.100
 90TH PERCENTILE                                                             
 MAXIMUM                    0.003                   0.1                 1.500
 DATE OF MAXIMUM       1982-05-11            1983-05-12            1984-11-20
 STANDARD DEVIATION         0.001                   0.0                 0.567





                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          2          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        1          4         15
 MEAN                       0.006      0.008       12.8
 MINIMUM                               0.001        5.2
 DATE OF MINIMUM                  1983-11-21 1982-09-23
 10TH PERCENTILE                                    5.3
 MEDIAN                                0.002        5.8
 90TH PERCENTILE                                    7.5
 MAXIMUM                               0.030      108.2
 DATE OF MAXIMUM                  1982-05-11 1984-09-10
 STANDARD DEVIATION                    0.011       26.4





 STATION - APALACHICOLA RIVER                       STATION NO. 028014
 COUNTRY - UNITED STATES                            DEPTH(M)       5.7
 LOCATION - OCT. 0  LAT. 30/42/03  LONG. 084/51/33  ELEVATION(M)  14.8
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-26 TO 1984-11-13

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li        TOC     N KJEL     NO3NO2
                             COND       DISS                                 
                            02041      03101      06001      07004      07105
                            us/cm    mg/L Li     mg/L C     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          8          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       16          1          1         16         15
 MEAN                        101.        0.0         4.        0.7       0.32
 MINIMUM                       9.        0.0                   0.2       0.10
 DATE OF MINIMUM       1983-07-08 1982-11-22            1982-11-22 1982-07-21
 10TH PERCENTILE              51.                              0.3       0.10
 MEDIAN                      102.        0.0                   0.5       0.40
 90TH PERCENTILE             138.                              0.8       0.50
 MAXIMUM                     164.        0.0                   2.7       0.60
 DATE OF MAXIMUM       1984-06-29 1984-11-13            1984-05-17 1984-07-26
 STANDARD DEVIATION           35.        0.0                   0.6       0.16




                               O2          F        ALK         Mg         Cl
                             DISS       DISS      TOTAL       DISS       DISS
                            08102      09104      10121      12102      17203
                          mg/L O2     mg/L F      MEQ/L    mg/L Mg    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          8          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       16          8          1         16         16
 MEAN                         8.6        0.1      48.00         1.         4.
 MINIMUM                      6.2        0.1                    0.         2.
 DATE OF MINIMUM       1984-07-18 1982-01-26            1983-04-01 1982-07-21
 10TH PERCENTILE              6.6        0.1                    1.         3.
 MEDIAN                       7.4        0.1                    1.         4.
 90TH PERCENTILE             10.9        0.2                    1.         6.
 MAXIMUM                     14.5        0.2                    1.         6.
 DATE OF MAXIMUM       1984-01-05 1983-09-08            1982-11-22 1984-07-18
 STANDARD DEVIATION           2.3        0.0                    0.         1.




                               Ca         Cr         Cr         Mn         Mn
                             DISS      TOTAL       DISS      TOTAL       DISS
                            20103      24002      24052      25004      25104
                          mg/L Ca    mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          9          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       16          3          4          3         11
 MEAN                      13.306      0.013      0.004       0.07       0.01
 MINIMUM                    8.600                 0.001                  0.00
 DATE OF MINIMUM       1984-04-05            1982-11-22            1982-05-21
 10TH PERCENTILE            8.720                 0.001                  0.00
 MEDIAN                    12.500                 0.001                  0.01
 90TH PERCENTILE           19.000                 0.010                  0.02
 MAXIMUM                   22.000                 0.010                  0.06
 DATE OF MAXIMUM       1984-06-29            1982-09-09            1984-06-29
 STANDARD DEVIATION         4.023                 0.004                  0.02





                               Fe         Fe         Ni         Ni         Cu
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            26004      26104      28001      28102      29006
                          mg/L Fe    mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         13          3          9          3
 MEAN                        0.51       0.12      0.003      0.001      0.005
 MINIMUM                                0.02                 0.001           
 DATE OF MINIMUM                  1984-11-13            1982-05-21           
 10TH PERCENTILE                        0.02                 0.001           
 MEDIAN                                 0.06                 0.001           
 90TH PERCENTILE                        0.20                 0.002           
 MAXIMUM                                0.57                 0.003           
 DATE OF MAXIMUM                  1984-07-26            1983-04-01           
 STANDARD DEVIATION                     0.15                 0.001           




                               Cu         As         As   FAEC COL       FAEC
                             DISS      TOTAL       DISS                 STREP
                            29105      33003      33104      36012      36102
                          mg/L Cu    mg/L As    mg/L As   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        3          0          4          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          1          2
 NO. OF UNFLAGGED VALUES       10          4          8         14         13
 MEAN                       0.002      0.001      0.001        95.       189.
 MINIMUM                    0.001      0.001      0.001         3.         8.
 DATE OF MINIMUM       1982-11-22 1982-01-26 1982-01-26 1982-05-21 1984-11-13
 10TH PERCENTILE            0.001                 0.001         4.        14.
 MEDIAN                     0.002      0.001      0.001        52.       140.
 90TH PERCENTILE            0.003                 0.001       220.       380.
 MAXIMUM                    0.008      0.001      0.001       560.       439.
 DATE OF MAXIMUM       1983-04-01 1984-07-26 1984-11-13 1984-07-18 1982-07-21
 STANDARD DEVIATION         0.002      0.000      0.000       148.       150.




                               Cd         Cd         Ba         Ba         Ba
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            48001      48101      56001      56101      80016
                          mg/L Cd    mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg


 NO. OF L-FLAGGED VALUES        1         11          3          0          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          2          0         12          0
 MEAN                       0.001      0.001        0.1        0.0      0.100
 MINIMUM                               0.001                   0.0      0.100
 DATE OF MINIMUM                  1982-01-26            1982-01-26 1982-01-26
 10TH PERCENTILE                       0.001                   0.0           
 MEDIAN                                0.001                   0.0      0.100
 90TH PERCENTILE                       0.001                   0.0           
 MAXIMUM                               0.002                   0.0      0.100
 DATE OF MAXIMUM                  1984-07-26            1984-11-13 1984-07-26
 STANDARD DEVIATION                    0.000                   0.0      0.000




                               Hg         Pb         Pb       INST
                             DISS      TOTAL       DISS     DISCHG
                            80111      82001      82101      97160
                          ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       13          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        0          4         12        185
 MEAN                       0.100      0.005      0.002     1176.7
 MINIMUM                    0.100      0.002      0.001      308.7
 DATE OF MINIMUM       1982-01-26 1982-01-26 1982-01-26 1984-11-05
 10TH PERCENTILE            0.100                 0.001      371.0
 MEDIAN                     0.100      0.004      0.002     1336.7
 90TH PERCENTILE            0.100                 0.003     2075.9
 MAXIMUM                    0.100      0.011      0.004     2296.8
 DATE OF MAXIMUM       1984-11-13 1984-07-26 1984-07-26 1983-03-08
 STANDARD DEVIATION         0.000      0.004      0.001      664.8





 STATION - TENNESSEE RIVER                          STATION NO. 028015
 COUNTRY - UNITED STATES                            DEPTH(M)       9.1
 LOCATION - OCT. 0  LAT. 37/02/16  LONG. 088/31/46  ELEVATION(M)  94.8
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-27 TO 1984-12-17

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          6          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       20          4         19         18         17
 MEAN                        157.        0.0        0.7       0.38        9.1
 MINIMUM                     125.        0.0        0.3       0.10        4.8
 DATE OF MINIMUM       1983-04-28 1982-10-28 1983-02-15 1982-09-13 1983-08-22
 10TH PERCENTILE             130.        0.0        0.3       0.10        4.8
 MEDIAN                      154.        0.0        0.5       0.45        7.8
 90TH PERCENTILE             180.        0.0        0.9       0.60       14.2
 MAXIMUM                     205.        0.0        2.3       0.70       15.6
 DATE OF MAXIMUM       1984-12-17 1984-12-17 1984-04-23 1983-02-15 1982-01-27
 STANDARD DEVIATION           19.        0.0        0.5       0.21        3.5




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        7          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12          2         19         19         19
 MEAN                         0.1      58.00         3.         7.     19.526
 MINIMUM                      0.1                    2.         5.     16.000
 DATE OF MINIMUM       1982-01-27            1982-01-27 1983-04-28 1983-07-12
 10TH PERCENTILE              0.1                    2.         5.     16.900
 MEDIAN                       0.1                    3.         7.     20.000
 90TH PERCENTILE              0.1                    4.         9.     22.000
 MAXIMUM                      0.2                    4.        10.     24.000
 DATE OF MAXIMUM       1982-09-13            1982-12-06 1983-10-19 1984-12-17
 STANDARD DEVIATION           0.0                    1.         1.      2.245




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          7          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          6          3         13          3
 MEAN                       0.013      0.004       0.09       0.01       0.80
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-10-28            1982-05-12           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.002                  0.01           
 90TH PERCENTILE                       0.010                  0.02           
 MAXIMUM                               0.010                  0.03           
 DATE OF MAXIMUM                  1982-07-14            1984-04-23           
 STANDARD DEVIATION                    0.004                  0.01           






                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          3         13          3         13
 MEAN                        0.04      0.004      0.003      0.011      0.004
 MINIMUM                     0.00                 0.001                 0.001
 DATE OF MINIMUM       1982-10-28            1982-12-06            1984-10-22
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.03                 0.003                 0.004
 90TH PERCENTILE             0.09                 0.005                 0.006
 MAXIMUM                     0.16                 0.007                 0.009
 DATE OF MAXIMUM       1984-04-23            1983-04-28            1982-07-14
 STANDARD DEVIATION          0.04                 0.002                 0.002




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          1          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12         19         19          3
 MEAN                       0.001      0.001        30.       594.      0.002
 MINIMUM                               0.001         1.         4.           
 DATE OF MINIMUM                  1982-01-27 1983-07-12 1984-08-21           
 10TH PERCENTILE                       0.001         1.         6.           
 MEDIAN                                0.001        10.       120.           
 90TH PERCENTILE                       0.001        30.      1272.           
 MAXIMUM                               0.001       359.      3920.           
 DATE OF MAXIMUM                  1984-12-17 1982-01-27 1984-03-06           
 STANDARD DEVIATION                    0.000        80.       993.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES        6          2          0          1          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        7          1         13          1          5
 MEAN                       0.001        0.1        0.0      0.100      0.242
 MINIMUM                    0.001                   0.0                 0.100
 DATE OF MINIMUM       1982-01-27            1982-01-27            1982-01-27
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001                   0.0                 0.100
 90TH PERCENTILE            0.002                   0.0                 0.440
 MAXIMUM                    0.003                   0.1                 1.000
 DATE OF MAXIMUM       1984-06-25            1983-07-12            1984-12-17
 STANDARD DEVIATION         0.001                   0.0                 0.271




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3         12         19
 MEAN                       0.005      0.003     2268.1
 MINIMUM                               0.001      747.6
 DATE OF MINIMUM                  1982-10-28 1983-10-19
 10TH PERCENTILE                       0.001      877.6
 MEDIAN                                0.002     1362.2
 90TH PERCENTILE                       0.006     4231.0
 MAXIMUM                               0.008     6343.7
 DATE OF MAXIMUM                  1984-10-22 1982-01-27
 STANDARD DEVIATION                    0.002     1643.3





 STATION - TALKEETNA RIVER                          STATION NO. 028016
 COUNTRY - UNITED STATES                            DEPTH(M)       1.0
 LOCATION - OCT. 1  LAT. 62/21/16  LONG. 150/00/42  ELEVATION(M) 120.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-03-03 TO 1984-09-28

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li        TOC         CN     N KJEL
                             COND       DISS                                 
                            02041      03101      06001      06606      07004
                            us/cm    mg/L Li     mg/L C    mg/L Cn     mg/L N


 NO. OF L-FLAGGED VALUES        0          1          0          1          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       58          4          3          0         17
 MEAN                        100.        0.0         1.      0.010        0.5
 MINIMUM                      55.        0.0                              0.2
 DATE OF MINIMUM       1982-06-01 1982-04-09                       1982-03-03
 10TH PERCENTILE              67.                                         0.2
 MEDIAN                       88.        0.0                              0.5
 90TH PERCENTILE             185.                                         0.7
 MAXIMUM                     207.        0.0                              0.9
 DATE OF MAXIMUM       1984-03-07 1984-07-26                       1982-09-17
 STANDARD DEVIATION           40.        0.0                              0.2




                           NO3NO2         O2          F        ALK         Mg
                                        DISS       DISS      TOTAL       DISS
                            07105      08102      09104      10121      12102
                           mg/L N    mg/L O2     mg/L F      MEQ/L    mg/L Mg


 NO. OF L-FLAGGED VALUES        2          0         15          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         39          3          1         18
 MEAN                        0.37       12.1        0.1      52.00         2.
 MINIMUM                     0.10       10.5        0.1                    1.
 DATE OF MINIMUM       1983-06-23 1983-07-29 1982-03-03            1982-06-01
 10TH PERCENTILE             0.10       10.8        0.1                    1.
 MEDIAN                      0.30       11.9        0.1                    2.
 90TH PERCENTILE             0.58       14.2        0.1                    3.
 MAXIMUM                     1.00       15.3        0.2                    3.
 DATE OF MAXIMUM       1982-10-14 1983-10-04 1984-07-25            1982-04-09
 STANDARD DEVIATION          0.24        1.2        0.0                    1.




                               Cl         Ca         Cr         Cr         Mn
                             DISS       DISS      TOTAL       DISS      TOTAL
                            17203      20103      24002      24052      25004
                          mg/L Cl    mg/L Ca    mg/L Cr    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          2          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       17         18          0          1          2
 MEAN                         10.     15.917      0.010      0.003       0.10
 MINIMUM                       2.      8.500                 0.001           
 DATE OF MINIMUM       1984-07-26 1982-06-01            1983-03-18           
 10TH PERCENTILE               3.     10.500                                 
 MEDIAN                        8.     15.000                 0.001           
 90TH PERCENTILE              23.     23.100                                 
 MAXIMUM                      24.     25.000                 0.010           
 DATE OF MAXIMUM       1982-04-09 1982-03-03            1984-07-25           
 STANDARD DEVIATION            8.      5.157                 0.004           




                               Mn         Fe         Fe         Ni         Ni
                             DISS      TOTAL       DISS      TOTAL       DISS
                            25104      26004      26104      28001      28102
                          mg/L Mn    mg/L Fe    mg/L Fe    mg/L Ni    mg/L Ni


 NO. OF L-FLAGGED VALUES        0          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          2          6          1          3
 MEAN                        0.00       5.53       0.10      0.018      0.003
 MINIMUM                     0.00                  0.01                 0.001
 DATE OF MINIMUM       1982-04-09            1983-03-18            1983-03-18
 10TH PERCENTILE                                                             
 MEDIAN                      0.00                  0.05                 0.001
 90TH PERCENTILE                                                             
 MAXIMUM                     0.01                  0.31                 0.007
 DATE OF MAXIMUM       1984-07-26            1984-07-26            1984-07-26
 STANDARD DEVIATION          0.01                  0.12                 0.003




                               Cu         Cu         As         As   FAEC COL
                            TOTAL       DISS      TOTAL       DISS           
                            29006      29105      33003      33104      36012
                          mg/L Cu    mg/L Cu    mg/L As    mg/L As   No/100ml


 NO. OF L-FLAGGED VALUES        0          2          1          6          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          4          1          0          5
 MEAN                       0.011      0.007      0.002      0.001         7.
 MINIMUM                               0.001                 0.001         1.
 DATE OF MINIMUM                  1983-03-18            1982-04-09 1982-10-14
 10TH PERCENTILE                                                             
 MEDIAN                                0.003                 0.001         1.
 90TH PERCENTILE                                                             
 MAXIMUM                               0.030                 0.001        30.
 DATE OF MAXIMUM                  1982-04-09            1984-07-26 1982-06-01
 STANDARD DEVIATION                    0.011                 0.000        11.




                             FAEC         Cd         Cd         Ba         Ba
                            STREP      TOTAL       DISS      TOTAL       DISS
                            36102      48001      48101      56001      56101
                         No/100ml    mg/L Cd    mg/L Cd    mg/L Ba    mg/L Ba


 NO. OF L-FLAGGED VALUES        2          2          6          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          0          0          1          6
 MEAN                         18.      0.001      0.001        0.2        0.0
 MINIMUM                       1.                 0.001                   0.0
 DATE OF MINIMUM       1984-03-07            1983-03-18            1982-04-09
 10TH PERCENTILE                                                             
 MEDIAN                       12.                 0.001                   0.0
 90TH PERCENTILE                                                             
 MAXIMUM                      53.                 0.003                   0.0
 DATE OF MAXIMUM       1983-07-29            1982-04-09            1984-07-26
 STANDARD DEVIATION           19.                 0.001                   0.0




                               Ba         Hg         Pb         Pb       INST
                            TOTAL       DISS      TOTAL       DISS     DISCHG
                            80016      80111      82001      82101      97160
                          ug/L Hg    ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          5          0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1          2          3        100
 MEAN                       1.550      0.117      0.009      0.007      261.0
 MINIMUM                               0.100                 0.001        7.4
 DATE OF MINIMUM                  1982-04-09            1983-03-18 1982-03-03
 10TH PERCENTILE                                                         82.1
 MEDIAN                                0.100                 0.002      242.5
 90TH PERCENTILE                                                        413.5
 MAXIMUM                               0.200                 0.030      824.1
 DATE OF MAXIMUM                  1984-07-25            1982-04-09 1984-07-25
 STANDARD DEVIATION                    0.041                 0.011      145.7





 STATION - HUDSON RIVER                             STATION NO. 028017
 COUNTRY - UNITED STATES                            DEPTH(M)       3.4
 LOCATION - OCT. 0  LAT. 42/45/08  LONG. 073/41/22  ELEVATION(M)   5.5
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-03-30 TO 1984-11-21

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          6          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34          3         13         13         13
 MEAN                        174.        0.0        0.8       0.65       11.4
 MINIMUM                     132.        0.0        0.3       0.30        7.0
 DATE OF MINIMUM       1983-06-14 1982-11-16 1983-03-03 1983-06-14 1982-08-24
 10TH PERCENTILE             141.                   0.3       0.33        7.1
 MEDIAN                      180.        0.0        0.6       0.50       11.6
 90TH PERCENTILE             192.                   1.3       0.77       14.8
 MAXIMUM                     238.        0.0        1.8       1.90       15.1
 DATE OF MAXIMUM       1983-09-20 1984-11-21 1984-11-21 1982-05-11 1983-03-03
 STANDARD DEVIATION           26.        0.0        0.4       0.40        3.0




                                F        ALK         Mg         Cl      MIREX
                             DISS      TOTAL       DISS       DISS           
                            09104      10121      12102      17203      18125
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl       ug/L


 NO. OF L-FLAGGED VALUES        9          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          1         13         13          0
 MEAN                         0.1      62.00         4.        12.      0.010
 MINIMUM                      0.1                    3.         7.           
 DATE OF MINIMUM       1982-03-30            1982-05-11 1984-06-05           
 10TH PERCENTILE              0.1                    3.         7.           
 MEDIAN                       0.1                    4.        13.           
 90TH PERCENTILE              0.2                    4.        16.           
 MAXIMUM                      0.2                    5.        20.           
 DATE OF MAXIMUM       1984-06-05            1983-03-03 1983-09-20           
 STANDARD DEVIATION           0.0                    1.         4.           




                           ALDRIN     ENDRIN   DIELDRIN         Ca         Cr
                                                              DISS      TOTAL
                            18130      18140      18150      20103      24002
                             ug/L       ug/L       ug/L    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        2          2          2          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0         13          2
 MEAN                       0.010      0.010      0.010     22.154      0.013
 MINIMUM                                                    17.000           
 DATE OF MINIMUM                                        1982-05-11           
 10TH PERCENTILE                                            17.300           
 MEDIAN                                                     22.000           
 90TH PERCENTILE                                            26.400           
 MAXIMUM                                                    28.000           
 DATE OF MAXIMUM                                        1983-09-20           
 STANDARD DEVIATION                                          3.338           





                               Cr         Mn         Mn         Fe         Fe
                             DISS      TOTAL       DISS      TOTAL       DISS
                            24052      25004      25104      26004      26104
                          mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe    mg/L Fe


 NO. OF L-FLAGGED VALUES        8          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          3         12          3         12
 MEAN                       0.003       0.05       0.02       0.37       0.06
 MINIMUM                    0.001                  0.01                  0.02
 DATE OF MINIMUM       1982-11-16            1982-07-20            1983-09-20
 10TH PERCENTILE            0.001                  0.01                  0.02
 MEDIAN                     0.001                  0.02                  0.06
 90TH PERCENTILE            0.010                  0.03                  0.09
 MAXIMUM                    0.010                  0.03                  0.09
 DATE OF MAXIMUM       1982-08-24            1984-03-07            1984-11-21
 STANDARD DEVIATION         0.004                  0.01                  0.02




                               Ni         Ni         Cu         Cu         As
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            28001      28102      29006      29105      33003
                          mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu    mg/L As


 NO. OF L-FLAGGED VALUES        0          2          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          9          3         11          3
 MEAN                       0.003      0.002      0.016      0.009      0.002
 MINIMUM                               0.001                 0.003           
 DATE OF MINIMUM                  1982-03-30            1983-09-20           
 10TH PERCENTILE                       0.001                 0.003           
 MEDIAN                                0.002                 0.007           
 90TH PERCENTILE                       0.003                 0.015           
 MAXIMUM                               0.004                 0.016           
 DATE OF MAXIMUM                  1984-06-05            1983-06-14           
 STANDARD DEVIATION                    0.001                 0.005           




                               As   FAEC COL       FAEC         Cd         Cd
                             DISS                 STREP      TOTAL       DISS
                            33104      36012      36102      48001      48101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Cd


 NO. OF L-FLAGGED VALUES        3          0          0          0          5
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9         11         11          3          7
 MEAN                       0.001      1070.       440.      0.011      0.015
 MINIMUM                    0.001       150.        57.                 0.001
 DATE OF MINIMUM       1982-03-30 1984-03-07 1983-03-03            1983-09-20
 10TH PERCENTILE            0.001       167.        60.                 0.001
 MEDIAN                     0.001       680.       190.                 0.005
 90TH PERCENTILE            0.001      2090.      1205.                 0.015
 MAXIMUM                    0.001      3000.      2000.                 0.120
 DATE OF MAXIMUM       1984-11-21 1982-11-16 1983-12-08            1983-06-14
 STANDARD DEVIATION         0.000       921.       624.                 0.033




                               Ba         Ba         Ba         Hg         Pb
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            56001      56101      80016      80111      82001
                          mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        1          0          1          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2         12          2          7          3
 MEAN                         0.1        0.0      0.133      0.300      0.014
 MINIMUM                                 0.0                 0.100           
 DATE OF MINIMUM                  1982-03-30            1982-07-20           
 10TH PERCENTILE                         0.0                 0.100           
 MEDIAN                                  0.0                 0.150           
 90TH PERCENTILE                         0.0                 0.510           
 MAXIMUM                                 0.0                 1.300           
 DATE OF MAXIMUM                  1984-11-21            1984-06-05           
 STANDARD DEVIATION                      0.0                 0.349           




                               Pb       INST
                             DISS     DISCHG
                            82101      97160
                          mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        1          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES       10          8
 MEAN                       0.003      166.3
 MINIMUM                    0.001        0.0
 DATE OF MINIMUM       1983-06-14 1982-11-16
 10TH PERCENTILE            0.001           
 MEDIAN                     0.003       57.5
 90TH PERCENTILE            0.005           
 MAXIMUM                    0.007      778.8
 DATE OF MAXIMUM       1984-03-07 1982-03-30
 STANDARD DEVIATION         0.002      268.1





 STATION - ST. MARYS RIVER AT L.SUPERIOR            STATION NO. 028018
 COUNTRY - UNITED STATES                            DEPTH(M)       9.0
 LOCATION - OCT. 0  LAT. 46/29/29  LONG. 084/25/17  ELEVATION(M) 183.3
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-27 TO 1984-10-16

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          8          2          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       16          2         15         13         15
 MEAN                         97.        0.0        0.5       0.25       12.0
 MINIMUM                      87.        0.0        0.1       0.10        9.0
 DATE OF MINIMUM       1984-04-10 1982-10-26 1982-03-10 1982-06-04 1984-07-11
 10TH PERCENTILE              88.        0.0        0.1       0.10        9.4
 MEDIAN                       94.        0.0        0.3       0.30       11.9
 90TH PERCENTILE              99.        0.0        0.8       0.30       13.8
 MAXIMUM                     133.        0.0        3.1       0.30       14.1
 DATE OF MAXIMUM       1984-01-26 1984-10-16 1982-04-20 1982-04-20 1983-01-12
 STANDARD DEVIATION           10.        0.0        0.7       0.07        1.7




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES       14          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1         16         15         16
 MEAN                         0.1      46.00         2.         1.     13.625
 MINIMUM                      0.1                    2.         0.     13.000
 DATE OF MINIMUM       1982-01-27            1982-01-27 1982-10-26 1982-04-20
 10TH PERCENTILE              0.1                    2.         0.     13.000
 MEDIAN                       0.1                    2.         1.     13.000
 90TH PERCENTILE              0.1                    3.         2.     14.000
 MAXIMUM                      0.1                    4.         2.     18.000
 DATE OF MAXIMUM       1984-10-16            1984-01-26 1984-07-11 1984-01-26
 STANDARD DEVIATION           0.0                    1.         1.      1.258




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         10          2          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          4          1          5          3
 MEAN                       0.013      0.006       0.01       0.00       0.05
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-10-26            1982-01-27           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.00           
 MAXIMUM                               0.022                  0.01           
 DATE OF MAXIMUM                  1984-01-18            1984-01-26           
 STANDARD DEVIATION                    0.006                  0.00           





                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        4          1          3          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10          2         11          3         14
 MEAN                        0.02      0.002      0.002      0.009      0.003
 MINIMUM                     0.00                 0.001                 0.001
 DATE OF MINIMUM       1982-06-04            1982-01-27            1983-10-05
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.00                 0.001                 0.003
 90TH PERCENTILE             0.01                 0.005                 0.004
 MAXIMUM                     0.15                 0.009                 0.005
 DATE OF MAXIMUM       1984-01-26            1984-07-11            1983-01-12
 STANDARD DEVIATION          0.04                 0.003                 0.001




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          2         10          7          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12          7         10          0
 MEAN                       0.001      0.001         2.        16.      0.001
 MINIMUM                               0.001         1.         1.           
 DATE OF MINIMUM                  1982-01-27 1982-01-27 1982-01-27           
 10TH PERCENTILE                       0.001         1.         1.           
 MEDIAN                                0.001         1.         1.           
 90TH PERCENTILE                       0.001         4.        23.           
 MAXIMUM                               0.002        10.       190.           
 DATE OF MAXIMUM                  1983-01-12 1984-01-17 1984-01-26           
 STANDARD DEVIATION                    0.000         2.        46.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       11          3          0          2          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          0         14          0          6
 MEAN                       0.001        0.1        0.0      0.100      0.136
 MINIMUM                    0.001                   0.0                 0.100
 DATE OF MINIMUM       1982-04-20            1982-01-27            1982-01-27
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001                   0.0                 0.100
 90TH PERCENTILE            0.001                   0.0                 0.200
 MAXIMUM                    0.001                   0.1                 0.300
 DATE OF MAXIMUM       1984-10-16            1983-07-13            1983-07-13
 STANDARD DEVIATION         0.000                   0.0                 0.063




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        1          1          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        2         13          1
 MEAN                       0.004      0.002       15.5
 MINIMUM                               0.001           
 DATE OF MINIMUM                  1982-01-27           
 10TH PERCENTILE                       0.001           
 MEDIAN                                0.002           
 90TH PERCENTILE                       0.004           
 MAXIMUM                               0.008           
 DATE OF MAXIMUM                  1983-07-13           
 STANDARD DEVIATION                    0.002           





 STATION - ST. CLAIR RIVER AT L.HURON               STATION NO. 028019
 COUNTRY - UNITED STATES                            DEPTH(M)       9.0
 LOCATION - OCT. 0  LAT. 42/59/19  LONG. 082/25/29  ELEVATION(M) 175.3
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-01-14 TO 1984-12-12

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          6          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22          5         22         19         22
 MEAN                        288.        0.0        0.6       0.29       11.1
 MINIMUM                     195.        0.0        0.1       0.20        6.0
 DATE OF MINIMUM       1984-11-23 1982-10-19 1983-07-12 1982-09-17 1983-05-18
 10TH PERCENTILE             198.        0.0        0.1       0.20        7.7
 MEDIAN                      206.        0.0        0.5       0.30       11.2
 90TH PERCENTILE             608.        0.0        1.4       0.31       14.1
 MAXIMUM                     918.        0.0        1.6       0.40       16.0
 DATE OF MAXIMUM       1983-10-18 1984-11-23 1982-09-17 1984-03-09 1984-03-09
 STANDARD DEVIATION          213.        0.0        0.5       0.06        2.7




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        5          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       17          2         21         22         21
 MEAN                         0.1      87.50        10.        12.     38.333
 MINIMUM                      0.1                    6.         5.     26.000
 DATE OF MINIMUM       1982-01-14            1984-05-09 1982-01-14 1982-01-14
 10TH PERCENTILE              0.1                    6.         5.     26.000
 MEDIAN                       0.1                    7.         6.     28.000
 90TH PERCENTILE              0.2                   28.        35.     78.600
 MAXIMUM                      0.3                   33.        54.    130.000
 DATE OF MAXIMUM       1984-08-07            1983-10-18 1983-10-18 1983-10-18
 STANDARD DEVIATION           0.1                    9.        15.     28.605




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         13          2         10          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          2          2          5          4
 MEAN                       0.010      0.004       0.01       0.00       0.12
 MINIMUM                    0.010      0.001       0.01       0.00       0.06
 DATE OF MINIMUM       1982-01-14 1982-10-19 1982-01-14 1982-01-14 1982-01-14
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                     0.010      0.001       0.01       0.00       0.09
 90TH PERCENTILE                       0.010                  0.01           
 MAXIMUM                    0.010      0.010       0.01       0.03       0.24
 DATE OF MAXIMUM       1982-09-17 1982-09-17 1982-09-17 1984-08-07 1982-09-17
 STANDARD DEVIATION         0.000      0.004       0.00       0.01       0.08




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        5          0          3          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10          4         12          4         13
 MEAN                        0.01      0.006      0.001      0.007      0.002
 MINIMUM                     0.00      0.003      0.001      0.004      0.001
 DATE OF MINIMUM       1982-01-14 1982-03-19 1982-01-14 1982-09-17 1982-03-19
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.00      0.004      0.001      0.007      0.002
 90TH PERCENTILE             0.02                 0.002                 0.002
 MAXIMUM                     0.02      0.011      0.004      0.010      0.006
 DATE OF MAXIMUM       1982-10-19 1982-06-17 1983-03-09 1982-01-14 1983-08-31
 STANDARD DEVIATION          0.01      0.004      0.001      0.003      0.001




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          5          8          2          1
 NO. OF G-FLAGGED VALUES        0          0          0          3          0
 NO. OF UNFLAGGED VALUES        4         11         14         16          3
 MEAN                       0.001      0.001       244.       293.      0.001
 MINIMUM                    0.001      0.001         1.         1.      0.001
 DATE OF MINIMUM       1982-01-14 1982-01-14 1982-01-14 1982-01-14 1982-01-14
 10TH PERCENTILE                       0.001         1.         1.           
 MEDIAN                     0.001      0.001         2.        16.      0.001
 90TH PERCENTILE                       0.002       174.       200.           
 MAXIMUM                    0.002      0.003      4500.      2800.      0.001
 DATE OF MAXIMUM       1982-09-17 1984-08-07 1984-08-07 1984-08-07 1982-09-17
 STANDARD DEVIATION         0.001      0.001       959.       803.      0.000




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       14          3          0          4         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1         15          0          4
 MEAN                       0.001        0.1        0.0      0.100      0.119
 MINIMUM                    0.001        0.1        0.0      0.100      0.100
 DATE OF MINIMUM       1982-01-14 1982-01-14 1982-01-14 1982-01-14 1982-01-14
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001        0.1        0.0      0.100      0.100
 90TH PERCENTILE            0.001                   0.1                 0.200
 MAXIMUM                    0.001        0.1        0.1      0.100      0.200
 DATE OF MAXIMUM       1984-11-23 1982-09-17 1984-08-07 1982-09-17 1984-03-09
 STANDARD DEVIATION         0.000        0.0        0.0      0.000      0.040






                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        2          5          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        2         10          3
 MEAN                       0.004      0.002        0.9
 MINIMUM                    0.001      0.001           
 DATE OF MINIMUM       1982-01-14 1982-01-14           
 10TH PERCENTILE                       0.001           
 MEDIAN                     0.003      0.001           
 90TH PERCENTILE                       0.004           
 MAXIMUM                    0.009      0.005           
 DATE OF MAXIMUM       1982-09-17 1984-08-07           
 STANDARD DEVIATION         0.004      0.001           





 STATION - NIAGARA RIVER AT LAKE ONTARIO            STATION NO. 028020
 COUNTRY - UNITED STATES                            DEPTH(M)      22.0
 LOCATION - OCT. 0  LAT. 43/16/10  LONG. 079/03/52  ELEVATION(M)  75.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-06-07 TO 1984-11-27

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          6          1          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES      142          3         15         13         79
 MEAN                        293.        0.0        0.7       0.19       10.6
 MINIMUM                     247.        0.0        0.1       0.10        7.5
 DATE OF MINIMUM       1984-04-30 1982-10-20 1982-06-28 1982-08-31 1984-06-08
 10TH PERCENTILE             277.                   0.2       0.10        9.2
 MEDIAN                      290.        0.0        0.6       0.20       11.0
 90TH PERCENTILE             307.                   1.4       0.25       11.8
 MAXIMUM                     416.        0.0        1.7       0.30       15.9
 DATE OF MAXIMUM       1984-06-08 1984-11-27 1984-11-08 1984-06-07 1984-04-30
 STANDARD DEVIATION           16.        0.0        0.5       0.07        1.1




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        1          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14          2         15         15         15
 MEAN                         0.1     109.00         8.        16.     37.333
 MINIMUM                      0.1                    7.        15.     34.000
 DATE OF MINIMUM       1982-06-07            1982-07-20 1982-06-07 1982-06-07
 10TH PERCENTILE              0.1                    7.        15.     34.000
 MEDIAN                       0.1                    8.        17.     37.000
 90TH PERCENTILE              0.2                    8.        18.     38.000
 MAXIMUM                      0.2                    8.        18.     50.000
 DATE OF MAXIMUM       1983-04-06            1982-06-28 1984-11-27 1984-11-08
 STANDARD DEVIATION           0.1                    0.         1.      3.792




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         11          1          8          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          3          3          6          4
 MEAN                       0.010      0.004       0.01       0.00       0.13
 MINIMUM                    0.010      0.001       0.01       0.00       0.10
 DATE OF MINIMUM       1982-06-07 1982-10-20 1982-06-07 1982-06-07 1982-08-16
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                     0.010      0.001       0.01       0.00       0.13
 90TH PERCENTILE                       0.010                  0.00           
 MAXIMUM                    0.010      0.010       0.01       0.01       0.18
 DATE OF MAXIMUM       1982-08-31 1982-08-31 1982-08-31 1984-11-08 1982-06-28
 STANDARD DEVIATION         0.000      0.004       0.00       0.00       0.03




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        6          0          3          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        8          4         11          4         14
 MEAN                        0.00      0.003      0.002      0.015      0.005
 MINIMUM                     0.00      0.002      0.001      0.012      0.001
 DATE OF MINIMUM       1982-06-07 1982-06-28 1983-07-05 1982-06-07 1984-04-30
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.00      0.003      0.002      0.016      0.005
 90TH PERCENTILE             0.02                 0.004                 0.007
 MAXIMUM                     0.02      0.004      0.005      0.019      0.008
 DATE OF MAXIMUM       1984-11-08 1982-08-16 1982-10-20 1982-06-28 1983-08-10
 STANDARD DEVIATION          0.01      0.001      0.001      0.003      0.002




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          2          1          1          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4         12         13         13          2
 MEAN                       0.001      0.001       287.        63.      0.001
 MINIMUM                    0.001      0.001        22.         6.      0.001
 DATE OF MINIMUM       1982-06-07 1982-06-07 1984-06-07 1984-06-07 1982-06-07
 10TH PERCENTILE                       0.001        25.         6.           
 MEDIAN                     0.001      0.001        78.        48.      0.001
 90TH PERCENTILE                       0.002       200.       120.           
 MAXIMUM                    0.001      0.002      2900.       140.      0.001
 DATE OF MAXIMUM       1982-08-31 1984-06-07 1983-07-05 1983-11-02 1982-08-31
 STANDARD DEVIATION         0.000      0.000       754.        47.      0.000




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       13          4          1          3          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          0         13          1          7
 MEAN                       0.001        0.1        0.0      0.100      0.214
 MINIMUM                    0.001        0.1        0.0      0.100      0.100
 DATE OF MINIMUM       1982-06-07 1982-06-07 1982-06-07 1982-06-07 1982-06-07
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001        0.1        0.0      0.100      0.100
 90TH PERCENTILE            0.001                   0.1                 0.300
 MAXIMUM                    0.001        0.1        0.1      0.100      1.300
 DATE OF MAXIMUM       1984-11-27 1982-08-31 1983-08-10 1982-08-31 1984-11-08
 STANDARD DEVIATION         0.000        0.0        0.0      0.000      0.321




                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        4         11          2
 MEAN                       0.004      0.002        7.3
 MINIMUM                    0.002      0.001           
 DATE OF MINIMUM       1982-06-07 1982-06-07           
 10TH PERCENTILE                       0.001           
 MEDIAN                     0.004      0.001           
 90TH PERCENTILE                       0.003           
 MAXIMUM                    0.005      0.003           
 DATE OF MAXIMUM       1982-08-16 1984-08-28           
 STANDARD DEVIATION         0.001      0.001           





 STATION - SAINT LAWRENCE RIVER                     STATION NO. 028021
 COUNTRY - UNITED STATES                            DEPTH(M)    9999.9
 LOCATION - OCT. 0  LAT. 45/00/22  LONG. 074/47/43  ELEVATION(M)  46.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1982-01-01 TO 1984-12-31
 PERIOD OF RECORD FROM  - 1982-02-24 TO 1984-10-26

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li     N KJEL     NO3NO2         O2
                             COND       DISS                             DISS
                            02041      03101      07004      07105      08102
                            us/cm    mg/L Li     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES        0          3          1          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22          7         20         16         22
 MEAN                        271.        0.0        0.6       0.24       11.4
 MINIMUM                      74.        0.0        0.1       0.10        8.8
 DATE OF MINIMUM       1984-10-19 1982-10-27 1983-01-26 1982-08-26 1984-06-05
 10TH PERCENTILE              82.        0.0        0.3       0.10        8.8
 MEDIAN                      306.        0.0        0.4       0.20       10.9
 90TH PERCENTILE             327.        0.0        1.1       0.33       14.3
 MAXIMUM                     340.        0.0        1.3       0.70       14.7
 DATE OF MAXIMUM       1984-03-26 1984-10-26 1984-05-24 1984-06-27 1982-04-27
 STANDARD DEVIATION           88.        0.0        0.3       0.15        2.1




                                F        ALK         Mg         Cl         Ca
                             DISS      TOTAL       DISS       DISS       DISS
                            09104      10121      12102      17203      20103
                           mg/L F      MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        1          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       21          3         22         22         22
 MEAN                         0.2      47.67         6.        21.     32.845
 MINIMUM                      0.1                    1.         2.      9.800
 DATE OF MINIMUM       1982-03-25            1984-10-25 1984-06-05 1984-06-05
 10TH PERCENTILE              0.1                    2.         3.     10.040
 MEDIAN                       0.2                    7.        25.     38.000
 90TH PERCENTILE              0.2                    8.        26.     39.000
 MAXIMUM                      0.2                    8.        28.     39.000
 DATE OF MAXIMUM       1982-10-27            1982-04-27 1984-03-26 1982-04-27
 STANDARD DEVIATION           0.1                    2.         9.     10.576




                               Cr         Cr         Mn         Mn         Fe
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            24002      24052      25004      25104      26004
                          mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         11          1          6          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          5          2         10          3
 MEAN                       0.020      0.003       0.02       0.01       0.43
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1982-10-27            1982-02-24           
 10TH PERCENTILE                       0.001                  0.00           
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                       0.010                  0.03           
 MAXIMUM                               0.010                  0.05           
 DATE OF MAXIMUM                  1982-08-26            1984-05-24           
 STANDARD DEVIATION                    0.004                  0.02           




                               Fe         Ni         Ni         Cu         Cu
                             DISS      TOTAL       DISS      TOTAL       DISS
                            26104      28001      28102      29006      29105
                          mg/L Fe    mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        5          1          3          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          2         13          3         16
 MEAN                        0.07      0.002      0.002      0.014      0.002
 MINIMUM                     0.00                 0.001                 0.001
 DATE OF MINIMUM       1982-02-24            1982-06-25            1984-05-24
 10TH PERCENTILE             0.00                 0.001                 0.001
 MEDIAN                      0.01                 0.002                 0.002
 90TH PERCENTILE             0.26                 0.003                 0.003
 MAXIMUM                     0.33                 0.003                 0.004
 DATE OF MAXIMUM       1984-10-19            1983-03-28            1984-06-05
 STANDARD DEVIATION          0.12                 0.001                 0.001




                               As         As   FAEC COL       FAEC         Cd
                            TOTAL       DISS                 STREP      TOTAL
                            33003      33104      36012      36102      48001
                          mg/L As    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0          4          1          2          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         12         19         19          1
 MEAN                       0.001      0.001        10.        26.      0.001
 MINIMUM                               0.001         1.         1.           
 DATE OF MINIMUM                  1982-02-24 1982-03-25 1982-02-24           
 10TH PERCENTILE                       0.001         1.         1.           
 MEDIAN                                0.001         4.         5.           
 90TH PERCENTILE                       0.001        20.        56.           
 MAXIMUM                               0.002        64.       199.           
 DATE OF MAXIMUM                  1984-08-28 1984-06-05 1983-01-26           
 STANDARD DEVIATION                    0.000        16.        46.           




                               Cd         Ba         Ba         Ba         Hg
                             DISS      TOTAL       DISS      TOTAL       DISS
                            48101      56001      56101      80016      80111
                          mg/L Cd    mg/L Ba    mg/L Ba    ug/L Hg    ug/L Hg


 NO. OF L-FLAGGED VALUES       15          1          0          2          9
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          2         16          1          7
 MEAN                       0.001        0.1        0.0      0.100      0.144
 MINIMUM                    0.001                   0.0                 0.100
 DATE OF MINIMUM       1982-02-24            1982-02-24            1982-02-24
 10TH PERCENTILE            0.001                   0.0                 0.100
 MEDIAN                     0.001                   0.0                 0.100
 90TH PERCENTILE            0.001                   0.0                 0.240
 MAXIMUM                    0.001                   0.1                 0.500
 DATE OF MAXIMUM       1984-10-26            1982-08-26            1983-10-21
 STANDARD DEVIATION         0.000                   0.0                 0.109





                               Pb         Pb       INST
                            TOTAL       DISS     DISCHG
                            82001      82101      97160
                          mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES        2          5          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        1         11         22
 MEAN                       0.003      0.002     6427.9
 MINIMUM                               0.001       16.3
 DATE OF MINIMUM                  1982-02-24 1984-10-19
 10TH PERCENTILE                       0.001       39.5
 MEDIAN                                0.002     7674.7
 90TH PERCENTILE                       0.005     8631.9
 MAXIMUM                               0.006     8750.9
 DATE OF MAXIMUM                  1983-03-28 1984-05-24
 STANDARD DEVIATION                    0.002     3138.1



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Last updated: 2001-07-30