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STATISTICS for THE UNITED STATES OF AMERICA

STATISTICS FOR THE UNITED STATES OF AMERICA


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-02-18   PAGE 733

 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-23 TO 1987-12-15

 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       11         11         11         11         11
 MEAN                        432.        0.0        0.8       1.48        8.5
 MINIMUM                     370.        0.0        0.4       0.80        6.7
 DATE OF MINIMUM       1985-01-23 1985-01-23 1985-01-23 1985-07-23 1985-07-23
 10TH PERCENTILE             373.        0.0        0.4       0.80        6.7
 MEDIAN                      430.        0.0        0.7       1.40        8.1
 90TH PERCENTILE             458.        0.0        1.2       2.15        9.8
 MAXIMUM                     530.        0.0        1.2       2.70       12.0
 DATE OF MAXIMUM       1986-07-16 1987-12-15 1987-08-13 1986-04-10 1987-01-28
 STANDARD DEVIATION           40.        0.0        0.3       0.59        1.6




                                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       11         10         11         11         11
 MEAN                         0.2     117.50        14.        25.     44.000
 MINIMUM                      0.1      99.00        12.        18.     38.000
 DATE OF MINIMUM       1985-01-23 1985-11-05 1985-01-23 1985-01-23 1985-01-23
 10TH PERCENTILE              0.1      99.00        12.        18.     38.100
 MEDIAN                       0.2     111.50        14.        23.     43.000
 90TH PERCENTILE              0.3     138.00        15.        33.     51.400
 MAXIMUM                      0.4     154.00        18.        38.     53.000
 DATE OF MAXIMUM       1986-07-16 1987-08-13 1986-07-16 1985-11-05 1986-07-16
 STANDARD DEVIATION           0.1      17.90         2.         7.      4.919




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        8          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          9         10         10          8
 MEAN                       0.001       0.01       0.02      0.003      0.004
 MINIMUM                    0.001       0.00       0.00      0.001      0.001
 DATE OF MINIMUM       1985-01-23 1987-04-22 1985-07-23 1985-01-23 1986-07-16
 10TH PERCENTILE            0.001                  0.00      0.001      0.001
 MEDIAN                     0.001       0.01       0.02      0.003      0.002
 90TH PERCENTILE            0.001                  0.04      0.004      0.010
 MAXIMUM                    0.001       0.02       0.04      0.006      0.012
 DATE OF MAXIMUM       1987-12-15 1986-01-15 1986-01-15 1987-12-15 1985-07-23
 STANDARD DEVIATION         0.000       0.01       0.01      0.002      0.004





                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        0          0          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         10         10          5         10
 MEAN                       0.002      2989.      2236.      0.005        0.1
 MINIMUM                    0.001       100.        81.      0.001        0.1
 DATE OF MINIMUM       1985-01-23 1987-01-28 1987-01-28 1985-01-23 1985-01-23
 10TH PERCENTILE            0.001       100.        81.      0.001        0.1
 MEDIAN                     0.002      2950.      1600.      0.001        0.1
 90TH PERCENTILE            0.002      6500.      3200.      0.002        0.1
 MAXIMUM                    0.002      6900.      9600.      0.041        0.1
 DATE OF MAXIMUM       1985-11-05 1985-11-05 1985-11-05 1985-07-23 1987-12-15
 STANDARD DEVIATION         0.001      2322.      2763.      0.013        0.0




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


 NO. OF L-FLAGGED VALUES        4          8          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        6          2         12
 MEAN                       0.240      0.004    18087.1
 MINIMUM                    0.100      0.001     7759.7
 DATE OF MINIMUM       1985-11-05 1985-01-23 1987-08-13
 10TH PERCENTILE            0.100      0.001     8275.1
 MEDIAN                     0.100      0.005    16411.5
 90TH PERCENTILE            0.300      0.005    26320.7
 MAXIMUM                    0.900      0.010    36504.5
 DATE OF MAXIMUM       1987-04-22 1987-12-15 1985-03-28
 STANDARD DEVIATION         0.250      0.003     8173.7





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-24 TO 1987-11-17

 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          3          2          4          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13          8         10          8         13
 MEAN                        161.        0.0        0.3       0.24       10.7
 MINIMUM                      81.        0.0        0.2       0.10        8.0
 DATE OF MINIMUM       1985-08-20 1985-01-24 1985-01-24 1985-07-25 1987-09-09
 10TH PERCENTILE              95.        0.0        0.2       0.10        8.1
 MEDIAN                      161.        0.0        0.3       0.25       10.8
 90TH PERCENTILE             200.        0.0        0.5       0.37       12.4
 MAXIMUM                     207.        0.0        0.6       0.60       14.1
 DATE OF MAXIMUM       1985-04-17 1987-11-17 1987-05-12 1985-04-17 1985-01-24
 STANDARD DEVIATION           34.        0.0        0.1       0.16        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        1          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         13         13         13         13
 MEAN                         0.2      65.92         5.         3.     18.862
 MINIMUM                      0.1      45.00         3.         0.      7.200
 DATE OF MINIMUM       1985-07-25 1985-08-20 1985-08-20 1985-08-20 1985-08-20
 10TH PERCENTILE              0.1      46.20         3.         1.      9.840
 MEDIAN                       0.2      66.00         5.         4.     19.000
 90TH PERCENTILE              0.2      77.40         6.         5.     23.400
 MAXIMUM                      0.2      79.00         6.         5.     25.000
 DATE OF MAXIMUM       1985-04-17 1985-01-24 1986-03-26 1986-11-19 1985-01-24
 STANDARD DEVIATION           0.0      10.57         1.         1.      4.537




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        8          3          0          6          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          9         12          6         12
 MEAN                       0.001       0.00       0.02      0.002      0.004
 MINIMUM                    0.001       0.00       0.00      0.001      0.001
 DATE OF MINIMUM       1985-01-24 1985-01-24 1985-11-05 1985-01-24 1985-08-20
 10TH PERCENTILE            0.001       0.00       0.00      0.001      0.001
 MEDIAN                     0.001       0.00       0.01      0.001      0.003
 90TH PERCENTILE            0.002       0.00       0.05      0.003      0.005
 MAXIMUM                    0.003       0.01       0.06      0.004      0.010
 DATE OF MAXIMUM       1987-05-12 1986-03-26 1986-03-26 1985-11-05 1987-09-09
 STANDARD DEVIATION         0.001       0.00       0.02      0.001      0.002




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        2          0          2          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         12         10          4         12
 MEAN                       0.001         5.        10.      0.003        0.0
 MINIMUM                    0.001         1.         1.      0.001        0.0
 DATE OF MINIMUM       1985-04-17 1985-01-24 1986-05-20 1985-01-24 1985-01-24
 10TH PERCENTILE            0.001         1.         1.      0.001        0.0
 MEDIAN                     0.001         4.         8.      0.001        0.0
 90TH PERCENTILE            0.002        10.        21.      0.001        0.0
 MAXIMUM                    0.002        14.        33.      0.019        0.0
 DATE OF MAXIMUM       1986-11-19 1986-03-26 1986-11-19 1985-11-05 1987-11-17
 STANDARD DEVIATION         0.000         4.        10.      0.005        0.0




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


 NO. OF L-FLAGGED VALUES        7          8          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        5          4          1
 MEAN                       0.108      0.003        0.0
 MINIMUM                    0.100      0.001           
 DATE OF MINIMUM       1985-01-24 1985-01-24           
 10TH PERCENTILE            0.100      0.001           
 MEDIAN                     0.100      0.004           
 90TH PERCENTILE            0.100      0.005           
 MAXIMUM                    0.200      0.006           
 DATE OF MAXIMUM       1987-03-18 1986-11-19           
 STANDARD DEVIATION         0.029      0.002           





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-03-27 TO 1987-09-17

 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          3          1          4          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       58         10         11          7         48
 MEAN                        203.        0.0        0.6       0.15        8.3
 MINIMUM                     113.        0.0        0.2       0.10        1.6
 DATE OF MINIMUM       1985-06-10 1985-03-27 1985-07-23 1985-06-10 1986-04-17
 10TH PERCENTILE             142.        0.0        0.2       0.10        2.3
 MEDIAN                      190.        0.0        0.5       0.10        9.0
 90TH PERCENTILE             313.        0.0        0.9       0.20       11.2
 MAXIMUM                     319.        0.0        1.4       0.30       12.3
 DATE OF MAXIMUM       1986-04-17 1987-09-17 1987-07-28 1987-09-17 1985-10-10
 STANDARD DEVIATION           62.        0.0        0.4       0.07        2.9




                                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        4          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9          6         13         13         13
 MEAN                         0.1      84.17         7.         2.     31.615
 MINIMUM                      0.1      61.00         3.         0.     22.000
 DATE OF MINIMUM       1985-03-27 1987-06-04 1985-06-10 1985-07-23 1985-06-10
 10TH PERCENTILE              0.1                    3.         0.     22.300
 MEDIAN                       0.1      72.50         6.         1.     29.000
 90TH PERCENTILE              0.2                   11.         1.     47.500
 MAXIMUM                      0.2     155.00        11.        12.     49.000
 DATE OF MAXIMUM       1987-09-17 1986-04-17 1986-04-17 1985-03-27 1986-04-17
 STANDARD DEVIATION           0.0      35.59         3.         3.      9.751




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES       12          0          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         13         13         12         13
 MEAN                       0.001       0.05       0.28      0.002      0.005
 MINIMUM                    0.001       0.00       0.07      0.001      0.002
 DATE OF MINIMUM       1985-03-27 1986-09-28 1985-03-27 1985-07-23 1985-04-02
 10TH PERCENTILE            0.001       0.00       0.08      0.001      0.002
 MEDIAN                     0.001       0.02       0.25      0.002      0.005
 90TH PERCENTILE            0.001       0.14       0.58      0.004      0.008
 MAXIMUM                    0.001       0.20       0.72      0.005      0.009
 DATE OF MAXIMUM       1987-09-17 1986-04-17 1987-03-04 1986-04-17 1987-06-04
 STANDARD DEVIATION         0.000       0.06       0.21      0.001      0.002





                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        7          5          6         12          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          6          4          1         13
 MEAN                       0.001         4.         7.      0.001        0.0
 MINIMUM                    0.001         1.         1.      0.001        0.0
 DATE OF MINIMUM       1985-03-27 1985-04-02 1985-06-10 1985-03-27 1985-03-27
 10TH PERCENTILE            0.001         1.         1.      0.001        0.0
 MEDIAN                     0.001         1.         1.      0.001        0.0
 90TH PERCENTILE            0.001        10.        12.      0.001        0.1
 MAXIMUM                    0.002        23.        50.      0.001        0.1
 DATE OF MAXIMUM       1987-07-28 1987-07-28 1987-06-04 1987-09-17 1986-04-17
 STANDARD DEVIATION         0.000         7.        15.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES        0          8          8          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        1          4          5         12
 MEAN                       0.100      0.150      0.003     9960.2
 MINIMUM                               0.100      0.001      801.5
 DATE OF MINIMUM                  1985-03-27 1985-04-02 1985-10-10
 10TH PERCENTILE                       0.100      0.001      867.2
 MEDIAN                                0.100      0.005    11469.6
 90TH PERCENTILE                       0.200      0.005    16340.7
 MAXIMUM                               0.500      0.005    26734.1
 DATE OF MAXIMUM                  1985-06-10 1987-09-17 1985-06-10
 STANDARD DEVIATION                    0.117      0.002     7878.2





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-08 TO 1987-12-08

 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       51         11         36         35         50
 MEAN                        549.        0.0        1.2       1.30        8.8
 MINIMUM                     263.        0.0        0.3       0.60        4.0
 DATE OF MINIMUM       1985-11-19 1985-01-08 1987-12-08 1985-09-16 1986-05-13
 10TH PERCENTILE             382.        0.0        0.5       0.75        6.2
 MEDIAN                      550.        0.0        1.0       1.10        7.4
 90TH PERCENTILE             669.        0.0        1.8       2.05       13.8
 MAXIMUM                     743.        0.0        3.9       2.90       15.4
 DATE OF MAXIMUM       1987-08-11 1987-11-02 1987-06-02 1985-05-07 1986-01-07
 STANDARD DEVIATION          106.        0.0        0.7       0.54        2.9




                                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       35         36         36         36         36
 MEAN                         0.3     154.50        17.        17.     54.306
 MINIMUM                      0.1      85.00         8.         6.     30.000
 DATE OF MINIMUM       1987-05-11 1985-11-19 1985-10-16 1985-11-19 1985-11-19
 10TH PERCENTILE              0.2     115.20        12.        10.     41.000
 MEDIAN                       0.3     158.00        17.        16.     56.000
 90TH PERCENTILE              0.4     191.00        21.        24.     64.600
 MAXIMUM                      0.5     200.00        24.        33.     70.000
 DATE OF MAXIMUM       1987-10-06 1987-11-02 1987-11-02 1987-08-11 1987-01-06
 STANDARD DEVIATION           0.1      28.52         4.         6.      9.671




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        9          1          0          1          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2         10         11         10         10
 MEAN                       0.001       0.02       0.12      0.003      0.005
 MINIMUM                    0.001       0.00       0.00      0.001      0.000
 DATE OF MINIMUM       1985-01-08 1985-05-07 1987-05-11 1987-01-06 1987-05-11
 10TH PERCENTILE            0.001       0.00       0.00      0.001      0.000
 MEDIAN                     0.001       0.00       0.02      0.003      0.005
 90TH PERCENTILE            0.001       0.02       0.20      0.005      0.008
 MAXIMUM                    0.002       0.12       0.97      0.005      0.008
 DATE OF MAXIMUM       1987-07-06 1985-01-08 1985-01-08 1987-05-11 1987-07-06
 STANDARD DEVIATION         0.000       0.04       0.29      0.001      0.002




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        0          0          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         36         34          6         11
 MEAN                       0.002      1580.      1807.      0.023        0.1
 MINIMUM                    0.001        80.        10.      0.001        0.1
 DATE OF MINIMUM       1985-11-19 1985-02-19 1987-08-11 1985-05-07 1985-01-08
 10TH PERCENTILE            0.001       130.        28.      0.001        0.1
 MEDIAN                     0.002      1050.       490.      0.001        0.1
 90TH PERCENTILE            0.002      2990.      3560.      0.027        0.1
 MAXIMUM                    0.003     10000.     18000.      0.209        0.1
 DATE OF MAXIMUM       1987-07-06 1985-11-19 1985-01-08 1987-07-06 1987-11-02
 STANDARD DEVIATION         0.001      1860.      3808.      0.062        0.0




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


 NO. OF L-FLAGGED VALUES        8          5          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          6         51
 MEAN                       0.209      0.006     3164.3
 MINIMUM                    0.100      0.001     1427.3
 DATE OF MINIMUM       1985-01-08 1985-11-19 1987-11-02
 10TH PERCENTILE            0.100      0.001     1644.7
 MEDIAN                     0.100      0.005     3030.2
 90TH PERCENTILE            0.280      0.008     4774.8
 MAXIMUM                    1.100      0.025     8750.9
 DATE OF MAXIMUM       1987-07-06 1987-05-11 1985-11-19
 STANDARD DEVIATION         0.302      0.007     1386.4





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-07 TO 1987-12-15

 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        1          1          0          1          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES      112         10         88        106         99
 MEAN                        229.        0.0         4.        0.8       1.17
 MINIMUM                      50.        0.0         1.        0.2       0.10
 DATE OF MINIMUM       1985-01-17 1985-03-05 1985-01-17 1985-10-24 1985-01-17
 10TH PERCENTILE             143.        0.0         2.        0.4       0.60
 MEDIAN                      220.        0.0         4.        0.7       1.10
 90TH PERCENTILE             334.        0.0         6.        1.2       1.80
 MAXIMUM                     400.        0.0        11.        8.9       4.30
 DATE OF MAXIMUM       1987-08-04 1987-11-04 1985-08-08 1985-09-03 1985-09-03
 STANDARD DEVIATION           70.        0.0         2.        0.9       0.55




                            NO2-N         O2          F        ALK         Mg
                                        DISS       DISS      TOTAL       DISS
                            07207      08102      09104      10121      12102
                           mg/L N    mg/L O2     mg/L F      MEQ/L    mg/L Mg


 NO. OF L-FLAGGED VALUES        6          0         14          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       16         28          3         20         17
 MEAN                        0.01       10.4        0.1      51.50         8.
 MINIMUM                     0.01        6.4        0.1      25.00         4.
 DATE OF MINIMUM       1985-11-06 1985-09-06 1985-01-07 1985-03-05 1987-04-09
 10TH PERCENTILE             0.01        7.4        0.1      28.00         5.
 MEDIAN                      0.01       11.0        0.1      53.00         7.
 90TH PERCENTILE             0.02       13.3        0.1      62.00        10.
 MAXIMUM                     0.02       14.0        0.1      84.00        12.
 DATE OF MAXIMUM       1986-09-03 1987-01-06 1987-11-04 1985-11-06 1987-09-02
 STANDARD DEVIATION          0.00        2.1        0.0      13.61         2.




                               Cl         Ca         Cr         Cr         Mn
                             DISS       DISS      TOTAL       DISS       DISS
                            17203      20103      24002      24052      25104
                          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       17         17          1          1         11
 MEAN                         13.     26.647      0.017      0.001       0.06
 MINIMUM                       7.     15.000                 0.001       0.01
 DATE OF MINIMUM       1987-04-09 1987-04-09            1985-03-05 1985-05-14
 10TH PERCENTILE               8.     19.200                 0.001       0.01
 MEDIAN                       12.     27.000                 0.001       0.03
 90TH PERCENTILE              18.     33.600                 0.001       0.14
 MAXIMUM                      20.     38.000                 0.004       0.21
 DATE OF MAXIMUM       1985-09-06 1985-11-06            1986-11-17 1986-03-04
 STANDARD DEVIATION            4.      5.830                 0.001       0.07




                               Fe         Ni         Cu         As   FAEC COL
                             DISS       DISS       DISS       DISS           
                            26104      28102      29105      33104      36012
                          mg/L Fe    mg/L Ni    mg/L Cu    mg/L As   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          1          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         10          9          3         17
 MEAN                        0.04      0.004      0.005      0.001       110.
 MINIMUM                     0.00      0.002      0.001      0.001        11.
 DATE OF MINIMUM       1986-05-13 1985-03-05 1987-04-09 1985-03-05 1985-03-05
 10TH PERCENTILE             0.00      0.002      0.001      0.001        12.
 MEDIAN                      0.01      0.003      0.004      0.001        38.
 90TH PERCENTILE             0.08      0.007      0.009      0.001       248.
 MAXIMUM                     0.12      0.009      0.010      0.001       590.
 DATE OF MAXIMUM       1986-03-04 1986-11-17 1986-05-13 1987-11-04 1987-04-09
 STANDARD DEVIATION          0.04      0.002      0.003      0.000       165.




                             FAEC         Cd         Ba         Hg         Pb
                            STREP       DISS       DISS       DISS       DISS
                            36102      48101      56101      80111      82101
                         No/100ml    mg/L Cd    mg/L Ba    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        0         10          0          6          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          1         11          5          4
 MEAN                        301.      0.001        0.0      0.136      0.004
 MINIMUM                       5.      0.001        0.0      0.100      0.001
 DATE OF MINIMUM       1985-03-05 1985-03-05 1985-03-05 1985-05-14 1986-05-13
 10TH PERCENTILE              11.      0.001        0.0      0.100      0.001
 MEDIAN                       98.      0.001        0.0      0.100      0.005
 90TH PERCENTILE             466.      0.001        0.0      0.200      0.005
 MAXIMUM                    2100.      0.001        0.0      0.300      0.005
 DATE OF MAXIMUM       1985-05-14 1987-11-04 1987-11-04 1986-03-04 1987-11-04
 STANDARD DEVIATION          579.      0.000        0.0      0.067      0.001




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES      117
 MEAN                      1563.2
 MINIMUM                      0.6
 DATE OF MINIMUM       1985-01-17
 10TH PERCENTILE            226.7
 MEDIAN                     880.8
 90TH PERCENTILE           4732.3
 MAXIMUM                   9968.7
 DATE OF MAXIMUM       1986-03-16
 STANDARD DEVIATION        1839.3





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-16 TO 1987-12-02

 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       30         12         30         30         30
 MEAN                        830.        0.0        0.6       0.33        8.1
 MINIMUM                     795.        0.0        0.2       0.20        6.7
 DATE OF MINIMUM       1987-04-23 1985-03-11 1985-10-15 1987-07-21 1986-09-26
 10TH PERCENTILE             800.        0.0        0.2       0.30        7.0
 MEDIAN                      822.        0.0        0.3       0.30        8.1
 90TH PERCENTILE             870.        0.0        1.0       0.40        9.3
 MAXIMUM                     900.        0.0        3.5       0.40        9.5
 DATE OF MAXIMUM       1985-01-16 1987-12-02 1987-02-18 1986-10-27 1987-06-23
 STANDARD DEVIATION           26.        0.0        0.7       0.05        0.9




                                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       30         28         30         30         30
 MEAN                         0.3     127.82        24.        55.     67.967
 MINIMUM                      0.2     118.00        23.        44.     64.000
 DATE OF MINIMUM       1986-06-10 1985-01-16 1985-11-14 1987-03-24 1986-04-15
 10TH PERCENTILE              0.2     122.00        23.        50.     64.000
 MEDIAN                       0.3     128.00        24.        55.     67.000
 90TH PERCENTILE              0.3     131.00        26.        59.     73.000
 MAXIMUM                      1.0     134.00        27.        64.     81.000
 DATE OF MAXIMUM       1985-09-17 1987-09-01 1985-03-11 1985-01-16 1985-03-11
 STANDARD DEVIATION           0.1       3.38         1.         4.      3.908




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES       11          9          5          1          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          3          7         11          9
 MEAN                       0.001       0.00       0.00      0.002      0.004
 MINIMUM                    0.001       0.00       0.00      0.001      0.001
 DATE OF MINIMUM       1985-03-11 1985-03-11 1985-03-11 1985-05-15 1985-09-17
 10TH PERCENTILE            0.001       0.00       0.00      0.001      0.001
 MEDIAN                     0.001       0.00       0.00      0.002      0.002
 90TH PERCENTILE            0.001       0.00       0.01      0.002      0.004
 MAXIMUM                    0.001       0.00       0.01      0.003      0.023
 DATE OF MAXIMUM       1987-12-02 1987-12-02 1986-05-14 1985-03-11 1987-12-02
 STANDARD DEVIATION         0.000       0.00       0.01      0.001      0.006




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        0         24         17          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          6         12          3         12
 MEAN                       0.002         1.        12.      0.001        0.1
 MINIMUM                    0.001         1.         1.      0.001        0.1
 DATE OF MINIMUM       1985-03-11 1985-01-16 1985-03-11 1985-03-11 1985-03-11
 10TH PERCENTILE            0.001         1.         1.      0.001        0.1
 MEDIAN                     0.002         1.         1.      0.001        0.1
 90TH PERCENTILE            0.003         2.        20.      0.001        0.1
 MAXIMUM                    0.003         2.       150.      0.002        0.1
 DATE OF MAXIMUM       1986-11-26 1987-01-21 1987-07-21 1987-09-01 1987-12-02
 STANDARD DEVIATION         0.001         1.        31.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES       10          9          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        1          3         30
 MEAN                       0.091      0.004      699.5
 MINIMUM                    0.000      0.001      181.2
 DATE OF MINIMUM       1986-05-14 1985-05-15 1987-10-01
 10TH PERCENTILE            0.010      0.001      297.4
 MEDIAN                     0.100      0.004      703.8
 90TH PERCENTILE            0.100      0.005      962.9
 MAXIMUM                    0.100      0.018     1025.5
 DATE OF MAXIMUM       1986-03-19 1987-12-02 1986-07-17
 STANDARD DEVIATION         0.030      0.005      235.3





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-14 TO 1987-11-10

 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          1          0          0          1
 NO. OF G-FLAGGED VALUES        0          1          0          1          0
 NO. OF UNFLAGGED VALUES       33         11         12         34         32
 MEAN                        315.        0.0         7.        1.0       1.15
 MINIMUM                     162.        0.0         2.        0.2       0.10
 DATE OF MINIMUM       1985-11-07 1985-03-18 1986-01-09 1986-03-05 1985-07-08
 10TH PERCENTILE             231.        0.0         2.        0.3       0.26
 MEDIAN                      284.        0.0         4.        0.7       1.00
 90TH PERCENTILE             432.        0.0        10.        1.1       1.90
 MAXIMUM                     492.        0.0        29.        8.9       2.10
 DATE OF MAXIMUM       1986-11-04 1987-11-10 1985-11-05 1985-11-07 1987-01-06
 STANDARD DEVIATION           77.        0.0         7.        1.5       0.60




                            NO2-N         O2          F        ALK         Mg
                                        DISS       DISS      TOTAL       DISS
                            07207      08102      09104      10121      12102
                           mg/L N    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        3          0          3          0          0
 NO. OF UNFLAGGED VALUES       27         31         16         33         20
 MEAN                        0.01       10.8        0.1      82.64         8.
 MINIMUM                     0.00        6.6        0.1      48.00         2.
 DATE OF MINIMUM       1986-11-04 1986-07-02 1985-01-14 1985-05-06 1985-11-07
 10TH PERCENTILE             0.00        6.8        0.1      55.20         5.
 MEDIAN                      0.01       10.6        0.1      79.00         8.
 90TH PERCENTILE             0.02       14.8        0.2     117.00        12.
 MAXIMUM                     0.03       17.0        0.4     129.00        12.
 DATE OF MAXIMUM       1987-07-07 1985-01-14 1987-11-10 1987-11-10 1986-11-04
 STANDARD DEVIATION          0.01        2.9        0.1      22.12         3.




                               Cl         Ca         Cr         Mn         Fe
                             DISS       DISS       DISS       DISS       DISS
                            17203      20103      24052      25104      26104
                          mg/L Cl    mg/L Ca    mg/L Cr    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          0          6          0          0
 NO. OF G-FLAGGED VALUES        0          0          7          0          1
 NO. OF UNFLAGGED VALUES       20         20          0         13         12
 MEAN                         16.     15.170      0.001       0.01       0.03
 MINIMUM                       3.      0.023      0.001       0.00       0.00
 DATE OF MINIMUM       1985-11-07 1987-03-02 1985-03-18 1985-11-07 1985-09-04
 10TH PERCENTILE              10.      0.030      0.001       0.00       0.00
 MEDIAN                       14.      0.053      0.001       0.01       0.01
 90TH PERCENTILE              26.     38.000      0.001       0.02       0.07
 MAXIMUM                      29.     43.000      0.001       0.03       0.09
 DATE OF MAXIMUM       1986-11-04 1985-07-01 1987-11-10 1985-11-05 1985-11-07
 STANDARD DEVIATION            7.     17.682      0.000       0.01       0.03




                               Ni         Cu         As   FAEC COL       FAEC
                             DISS       DISS       DISS                 STREP
                            28102      29105      33104      36012      36102
                          mg/L Ni    mg/L Cu    mg/L As   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        1          1          4          1          0
 NO. OF G-FLAGGED VALUES        2          0          7          2          1
 NO. OF UNFLAGGED VALUES       10         12          2         18         19
 MEAN                       0.001      0.002      0.001      2058.      4334.
 MINIMUM                    0.001      0.001      0.001         0.        13.
 DATE OF MINIMUM       1985-03-18 1985-03-18 1985-03-18 1987-05-14 1987-01-06
 10TH PERCENTILE            0.001      0.001      0.001         0.        37.
 MEDIAN                     0.001      0.002      0.001        36.       240.
 90TH PERCENTILE            0.003      0.005      0.001      1838.      3333.
 MAXIMUM                    0.003      0.007      0.001     30000.     67000.
 DATE OF MAXIMUM       1987-11-10 1985-09-04 1987-11-10 1985-11-07 1985-11-07
 STANDARD DEVIATION         0.001      0.002      0.000      6765.     14926.




                               Cd         Ba         Ba         Hg         Pb
                             DISS       DISS      TOTAL       DISS       DISS
                            48101      56101      80016      80111      82101
                          mg/L Cd    mg/L Ba    ug/L Hg    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        6          0          0          6          2
 NO. OF G-FLAGGED VALUES        6          0          0          4          7
 NO. OF UNFLAGGED VALUES        1         13          1          1          4
 MEAN                       0.001        0.0      0.200      0.109      0.003
 MINIMUM                    0.001        0.0                 0.100      0.001
 DATE OF MINIMUM       1985-03-18 1985-03-18            1985-03-18 1985-03-18
 10TH PERCENTILE            0.001        0.0                 0.100      0.001
 MEDIAN                     0.001        0.0                 0.100      0.003
 90TH PERCENTILE            0.001        0.0                 0.100      0.005
 MAXIMUM                    0.001        0.0                 0.200      0.005
 DATE OF MAXIMUM       1987-11-10 1987-11-10            1987-11-10 1987-11-10
 STANDARD DEVIATION         0.000        0.0                 0.030      0.002




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       33
 MEAN                       502.1
 MINIMUM                     26.5
 DATE OF MINIMUM       1986-09-03
 10TH PERCENTILE             35.9
 MEDIAN                     116.0
 90TH PERCENTILE            642.0
 MAXIMUM                   9005.8
 DATE OF MAXIMUM       1985-11-07
 STANDARD DEVIATION        1563.7





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-02-12 TO 1987-11-09

 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          6          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34          5          2         13         13
 MEAN                        188.        0.0         3.        0.7       1.04
 MINIMUM                     122.        0.0                   0.4       0.70
 DATE OF MINIMUM       1986-12-08 1985-02-12            1987-11-09 1987-11-09
 10TH PERCENTILE             125.        0.0                   0.4       0.73
 MEDIAN                      194.        0.0                   0.6       0.91
 90TH PERCENTILE             233.        0.0                   0.9       1.47
 MAXIMUM                     239.        0.0                   1.4       1.60
 DATE OF MAXIMUM       1985-09-05 1987-11-09            1987-02-20 1985-02-12
 STANDARD DEVIATION           38.        0.0                   0.3       0.28




                            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          8          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         34         12          5         10
 MEAN                        0.03       12.0         2.        0.1      41.60
 MINIMUM                     0.01        7.5         1.        0.1       0.00
 DATE OF MINIMUM       1986-02-28 1987-08-28 1987-02-20 1985-02-12 1987-11-09
 10TH PERCENTILE             0.01        7.7         1.        0.1       0.00
 MEDIAN                      0.03       11.2         2.        0.1      48.00
 90TH PERCENTILE             0.04       17.1         3.        0.1      55.00
 MAXIMUM                     0.06       19.0         4.        0.1      64.00
 DATE OF MAXIMUM       1987-08-28 1987-02-20 1985-02-12 1987-11-09 1987-08-28
 STANDARD DEVIATION          0.02        3.3         1.        0.0      17.88




                               Mg         Cl         Ca         Cr         Mn
                             DISS       DISS       DISS       DISS       DISS
                            12102      17203      20103      24052      25104
                          mg/L Mg    mg/L Cl    mg/L Ca    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0         11          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       13         13         13          0         11
 MEAN                          6.        14.     17.000      0.001       0.01
 MINIMUM                       4.         9.     12.000      0.001       0.00
 DATE OF MINIMUM       1986-12-08 1986-12-08 1986-12-08 1985-02-12 1985-06-25
 10TH PERCENTILE               4.         9.     12.600      0.001       0.00
 MEDIAN                        6.        15.     18.000      0.001       0.01
 90TH PERCENTILE               7.        19.     19.700      0.001       0.02
 MAXIMUM                       8.        25.     21.000      0.001       0.03
 DATE OF MAXIMUM       1987-08-28 1985-02-12 1987-02-20 1987-11-09 1987-02-20
 STANDARD DEVIATION            1.         4.      2.677      0.000       0.01




                               Fe         Ni         Cu         As   FAEC COL
                             DISS       DISS       DISS       DISS           
                            26104      28102      29105      33104      36012
                          mg/L Fe    mg/L Ni    mg/L Cu    mg/L As   No/100ml


 NO. OF L-FLAGGED VALUES        0          4          0          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          7         11          2         12
 MEAN                        0.04      0.005      0.005      0.001        56.
 MINIMUM                     0.02      0.001      0.002      0.001         6.
 DATE OF MINIMUM       1985-09-05 1986-12-08 1985-06-25 1985-02-12 1987-02-20
 10TH PERCENTILE             0.02      0.001      0.002      0.001         6.
 MEDIAN                      0.04      0.002      0.004      0.001        49.
 90TH PERCENTILE             0.05      0.006      0.008      0.001       124.
 MAXIMUM                     0.06      0.037      0.010      0.001       133.
 DATE OF MAXIMUM       1985-11-12 1985-11-12 1985-02-12 1987-11-09 1986-07-30
 STANDARD DEVIATION          0.01      0.011      0.002      0.000        47.




                             FAEC         Cd         Ba         Hg         Pb
                            STREP       DISS       DISS       DISS       DISS
                            36102      48101      56101      80111      82101
                         No/100ml    mg/L Cd    mg/L Ba    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        0         11          0          6          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          0         11          4          8
 MEAN                       1394.      0.001        0.0      0.230      0.004
 MINIMUM                      18.      0.001        0.0      0.100      0.001
 DATE OF MINIMUM       1987-11-09 1985-02-12 1985-02-12 1985-11-12 1985-02-12
 10TH PERCENTILE              21.      0.001        0.0      0.100      0.001
 MEDIAN                      293.      0.001        0.0      0.100      0.005
 90TH PERCENTILE            3650.      0.001        0.0      0.300      0.005
 MAXIMUM                    7900.      0.001        0.0      1.000      0.005
 DATE OF MAXIMUM       1985-09-05 1987-11-09 1987-11-09 1985-02-12 1987-11-09
 STANDARD DEVIATION         2435.      0.000        0.0      0.279      0.002




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       12
 MEAN                       213.2
 MINIMUM                     91.5
 DATE OF MINIMUM       1985-09-05
 10TH PERCENTILE             94.6
 MEDIAN                     161.7
 90TH PERCENTILE            384.3
 MAXIMUM                    422.0
 DATE OF MAXIMUM       1986-12-08
 STANDARD DEVIATION         116.3





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-02-27 TO 1987-12-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC         Li          B        TOC         CN
                             COND       DISS      TOTAL                      
                            02041      03101      05001      06001      06606
                            us/cm    mg/L Li     mg/L B     mg/L C    mg/L Cn


 NO. OF L-FLAGGED VALUES        0          1          2          0          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       25          9          4          5          0
 MEAN                        336.        0.0        0.1         4.      0.008
 MINIMUM                     250.        0.0        0.1         3.      0.005
 DATE OF MINIMUM       1986-12-17 1985-04-16 1985-04-16 1987-08-10 1987-06-16
 10TH PERCENTILE             286.        0.0                                 
 MEDIAN                      324.        0.0        0.1         4.      0.010
 90TH PERCENTILE             387.        0.0                                 
 MAXIMUM                     472.        0.0        0.1         5.      0.010
 DATE OF MAXIMUM       1986-05-15 1987-12-14 1987-08-10 1987-09-22 1986-06-17
 STANDARD DEVIATION           48.        0.0        0.0         1.      0.003




                           N KJEL     NO3NO2         O2        COD          F
                                                   DISS                  DISS
                            07004      07105      08102      08301      09104
                           mg/L N     mg/L N    mg/L O2    mg/L O2     mg/L F


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       24         19         21          6         18
 MEAN                         0.9       1.20        8.7        19.        0.2
 MINIMUM                      0.5       0.20        6.4        11.        0.1
 DATE OF MINIMUM       1985-08-13 1987-08-10 1985-10-22 1987-06-16 1985-02-27
 10TH PERCENTILE              0.5       0.29        6.4                   0.1
 MEDIAN                       0.8       1.30        7.9        18.        0.2
 90TH PERCENTILE              1.5       1.94       11.1                   0.2
 MAXIMUM                      2.4       2.50       13.9        29.        0.3
 DATE OF MAXIMUM       1985-04-16 1986-06-17 1986-12-17 1986-05-15 1987-10-13
 STANDARD DEVIATION           0.5       0.70        2.0         6.        0.1




                              ALK         Mg         Mg         Cl         Ca
                            TOTAL      TOTAL       DISS       DISS      TOTAL
                            10121      12002      12102      17203      20003
                            MEQ/L    mg/L Mg    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       19          6         22         23          6
 MEAN                       85.74        13.        10.        19.     40.833
 MINIMUM                    60.00         9.         7.        12.     29.000
 DATE OF MINIMUM       1986-12-17 1987-08-10 1986-12-17 1985-12-12 1987-08-10
 10TH PERCENTILE            63.60                    8.        14.           
 MEDIAN                     82.00        12.        10.        18.     39.000
 90TH PERCENTILE           105.10                   12.        25.           
 MAXIMUM                   119.00        23.        21.        30.     60.000
 DATE OF MAXIMUM       1985-10-22 1986-05-15 1986-05-15 1987-12-14 1986-05-15
 STANDARD DEVIATION         16.34         5.         3.         4.     10.534




                               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          4         10          0          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22          2          5          6         13
 MEAN                      36.227      0.007      0.003       0.20       0.01
 MINIMUM                   28.000      0.005      0.001       0.07       0.00
 DATE OF MINIMUM       1987-08-10 1985-10-22 1985-04-16 1987-06-16 1985-04-16
 10TH PERCENTILE           30.000                 0.001                  0.00
 MEDIAN                    35.000      0.005      0.002       0.19       0.01
 90TH PERCENTILE           40.000                 0.005                  0.01
 MAXIMUM                   57.000      0.013      0.005       0.42       0.02
 DATE OF MAXIMUM       1986-05-15 1986-06-17 1986-06-17 1985-04-16 1987-04-15
 STANDARD DEVIATION         6.141      0.003      0.002       0.13       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          5          3          7          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6         13          3          8          5
 MEAN                        2.52       0.04      0.011      0.003      0.010
 MINIMUM                     0.41       0.01      0.005      0.001      0.005
 DATE OF MINIMUM       1987-08-10 1985-10-22 1985-10-22 1985-10-22 1987-08-10
 10TH PERCENTILE                        0.01                 0.001           
 MEDIAN                      2.03       0.04      0.012      0.003      0.010
 90TH PERCENTILE                        0.05                 0.005           
 MAXIMUM                     6.78       0.10      0.018      0.010      0.018
 DATE OF MAXIMUM       1985-04-16 1987-04-15 1986-06-17 1987-06-16 1986-05-15
 STANDARD DEVIATION          2.37       0.03      0.005      0.003      0.005




                               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        4          2          5          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          1
 NO. OF UNFLAGGED VALUES       11          3          6         15         16
 MEAN                       0.004      0.001      0.001        78.       324.
 MINIMUM                    0.001      0.001      0.001         4.         3.
 DATE OF MINIMUM       1986-04-17 1985-10-22 1985-04-16 1986-04-17 1986-04-17
 10TH PERCENTILE            0.001                 0.001         6.        13.
 MEDIAN                     0.004      0.001      0.001        53.        77.
 90TH PERCENTILE            0.007                 0.001       161.      1000.
 MAXIMUM                    0.010      0.002      0.001       240.      1400.
 DATE OF MAXIMUM       1987-06-16 1986-06-17 1987-12-14 1985-06-18 1985-02-27
 STANDARD DEVIATION         0.002      0.001      0.000        68.       430.




                               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        6         12          0          0          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          3          6         15          0
 MEAN                       0.003      0.002        0.1        0.0      0.088
 MINIMUM                    0.003      0.001        0.0        0.0      0.050
 DATE OF MINIMUM       1985-04-16 1985-04-16 1987-08-10 1985-04-16 1987-06-16
 10TH PERCENTILE                       0.001                   0.0           
 MEDIAN                     0.003      0.002        0.1        0.0      0.100
 90TH PERCENTILE                       0.003                   0.0           
 MAXIMUM                    0.003      0.008        0.1        0.1      0.100
 DATE OF MAXIMUM       1987-08-10 1986-10-29 1987-06-16 1986-05-15 1986-06-17
 STANDARD DEVIATION         0.000      0.002        0.0        0.0      0.023




                               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        3          5         11          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          4         21
 MEAN                       0.100      0.063      0.023     6601.4
 MINIMUM                    0.100      0.050      0.001     1495.3
 DATE OF MINIMUM       1985-04-16 1985-04-16 1985-10-22 1987-08-10
 10TH PERCENTILE                                  0.001     1544.9
 MEDIAN                     0.100      0.050      0.005     3681.6
 90TH PERCENTILE                                  0.050    16853.2
 MAXIMUM                    0.100      0.126      0.100    19031.1
 DATE OF MAXIMUM       1985-12-12 1987-06-16 1987-06-16 1985-12-12
 STANDARD DEVIATION         0.000      0.031      0.030     5725.3





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-20 TO 1987-11-19

 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          0          0         10          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18         11         14          3          4
 MEAN                       1638.        0.1        0.9       0.17       0.01
 MINIMUM                    1080.        0.0        0.7       0.10       0.01
 DATE OF MINIMUM       1987-09-01 1986-01-29 1985-07-30 1985-05-08 1985-10-23
 10TH PERCENTILE            1096.        0.0        0.7       0.10       0.01
 MEDIAN                     1415.        0.1        0.9       0.10       0.01
 90TH PERCENTILE            2376.        0.1        1.1       0.37       0.01
 MAXIMUM                    2730.        0.1        1.4       0.50       0.03
 DATE OF MAXIMUM       1985-07-30 1985-10-23 1987-01-14 1987-01-14 1987-01-14
 STANDARD DEVIATION          531.        0.0        0.2       0.14       0.01




                               O2        BOD          F        ALK         Mg
                             DISS                  DISS      TOTAL       DISS
                            08102      08201      09104      10121      12102
                          mg/L O2    mg/L O2     mg/L F      MEQ/L    mg/L Mg


 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         14         14         18         18
 MEAN                         8.8         3.        0.7     151.22        30.
 MINIMUM                      6.4         1.        0.4     107.00        18.
 DATE OF MINIMUM       1987-05-12 1987-09-01 1987-05-12 1985-05-08 1987-05-12
 10TH PERCENTILE              6.4         1.        0.5     115.00        21.
 MEDIAN                       8.9         3.        0.7     138.00        26.
 90TH PERCENTILE             10.8         4.        0.8     196.00        42.
 MAXIMUM                     12.0         5.        0.9     222.00        48.
 DATE OF MAXIMUM       1987-03-10 1986-01-29 1986-05-14 1986-08-26 1985-07-30
 STANDARD DEVIATION           1.7         1.        0.1      35.67         9.




                               Cl         Ca         Cr         Mn         Fe
                             DISS       DISS       DISS       DISS       DISS
                            17203      20103      24052      25104      26104
                          mg/L Cl    mg/L Ca    mg/L Cr    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          0         10          5          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18         18          1          6          8
 MEAN                        241.    104.278      0.001       0.03       0.01
 MINIMUM                     140.     72.000      0.001       0.00       0.00
 DATE OF MINIMUM       1987-05-12 1987-05-12 1985-05-08 1985-05-08 1985-01-30
 10TH PERCENTILE             148.     76.000      0.001       0.00       0.00
 MEDIAN                      200.     95.000      0.001       0.00       0.00
 90TH PERCENTILE             372.    141.000      0.001       0.02       0.02
 MAXIMUM                     480.    150.000      0.002       0.25       0.03
 DATE OF MAXIMUM       1985-07-30 1986-08-26 1985-01-30 1986-08-26 1985-07-30
 STANDARD DEVIATION          108.     28.008      0.000       0.07       0.01





                               Ni         Cu         As   FAEC COL       FAEC
                             DISS       DISS       DISS                 STREP
                            28102      29105      33104      36012      36102
                          mg/L Ni    mg/L Cu    mg/L As   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        1          2          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10          9         11         14         14
 MEAN                       0.002      0.001      0.004      1404.       389.
 MINIMUM                    0.001      0.001      0.002        32.        16.
 DATE OF MINIMUM       1985-01-30 1985-01-30 1985-01-30 1985-01-30 1987-11-19
 10TH PERCENTILE            0.001      0.001      0.002        54.        22.
 MEDIAN                     0.001      0.001      0.003       265.       130.
 90TH PERCENTILE            0.005      0.002      0.006      1650.       835.
 MAXIMUM                    0.006      0.002      0.006     13000.      2600.
 DATE OF MAXIMUM       1985-07-30 1986-08-26 1985-10-23 1985-10-23 1985-10-23
 STANDARD DEVIATION         0.002      0.001      0.001      3386.       694.




                               Cd         Ba         Hg         Pb       INST
                             DISS       DISS       DISS       DISS     DISCHG
                            48101      56101      80111      82101      97160
                          mg/L Cd    mg/L Ba    ug/L Hg    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       11          0          6          8          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         11          5          3         19
 MEAN                       0.001        0.1      0.155      0.004       16.7
 MINIMUM                    0.001        0.1      0.100      0.001        0.0
 DATE OF MINIMUM       1985-01-30 1985-01-30 1985-01-30 1985-01-30 1986-08-26
 10TH PERCENTILE            0.001        0.1      0.100      0.001        0.4
 MEDIAN                     0.001        0.1      0.100      0.005        5.6
 90TH PERCENTILE            0.001        0.2      0.290      0.005       30.0
 MAXIMUM                    0.001        0.2      0.400      0.006      122.9
 DATE OF MAXIMUM       1987-11-19 1986-08-26 1987-09-01 1985-05-08 1985-05-14
 STANDARD DEVIATION         0.000        0.0      0.104      0.002       31.8





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-03-20 TO 1987-12-22

 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         27          0          3         11
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       56          8         28         33         25
 MEAN                        148.        0.0         3.        0.6       0.15
 MINIMUM                      40.        0.0         1.        0.2       0.10
 DATE OF MINIMUM       1985-06-13 1985-03-20 1987-07-07 1985-06-13 1985-03-20
 10TH PERCENTILE             110.        0.0         2.        0.2       0.10
 MEDIAN                      146.        0.0         2.        0.5       0.10
 90TH PERCENTILE             181.        0.0         4.        1.1       0.20
 MAXIMUM                     214.        0.0         5.        2.1       0.40
 DATE OF MAXIMUM       1987-12-22 1987-12-22 1987-02-09 1987-07-07 1987-07-24
 STANDARD DEVIATION           29.        0.0         1.        0.5       0.07




                            NO2-N         O2          F        ALK         Mg
                                        DISS       DISS      TOTAL       DISS
                            07207      08102      09104      10121      12102
                           mg/L N    mg/L O2     mg/L F      MEQ/L    mg/L Mg


 NO. OF L-FLAGGED VALUES       31          0         21          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         55         15         28         36
 MEAN                        0.01        9.6        0.1      63.36         7.
 MINIMUM                     0.01        7.6        0.1       4.00         1.
 DATE OF MINIMUM       1985-06-13 1986-09-03 1985-03-20 1985-06-13 1985-06-13
 10TH PERCENTILE             0.01        8.4        0.1      53.60         5.
 MEDIAN                      0.01        9.4        0.1      62.00         7.
 90TH PERCENTILE             0.01       11.0        0.2      77.30         8.
 MAXIMUM                     0.02       12.0        0.5      87.00        10.
 DATE OF MAXIMUM       1987-01-09 1985-12-18 1987-08-20 1987-09-15 1987-09-15
 STANDARD DEVIATION          0.00        1.1        0.1      15.01         2.




                               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          5         12          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         23          0         28
 MEAN                          7.     12.100      0.010      0.001       0.07
 MINIMUM                       1.      3.500      0.001      0.001       0.02
 DATE OF MINIMUM       1985-06-13 1985-06-13 1986-11-04 1985-03-20 1986-11-17
 10TH PERCENTILE               4.      9.560      0.001      0.001       0.02
 MEDIAN                        6.     12.000      0.009      0.001       0.05
 90TH PERCENTILE              10.     14.300      0.020      0.001       0.13
 MAXIMUM                      14.     16.000      0.030      0.001       0.36
 DATE OF MAXIMUM       1987-12-22 1987-12-22 1987-04-01 1987-12-09 1987-01-09
 STANDARD DEVIATION            3.      2.261      0.009      0.000       0.08




                               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        2          0          0          3         15
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       33         28         35         26         20
 MEAN                        0.01       2.36       0.04      0.007      0.001
 MINIMUM                     0.00       0.44       0.01      0.001      0.001
 DATE OF MINIMUM       1985-06-12 1987-11-12 1987-04-20 1986-12-23 1985-03-20
 10TH PERCENTILE             0.00       0.54       0.01      0.001      0.001
 MEDIAN                      0.01       1.30       0.03      0.005      0.001
 90TH PERCENTILE             0.01       4.17       0.06      0.015      0.002
 MAXIMUM                     0.03      13.00       0.16      0.044      0.003
 DATE OF MAXIMUM       1987-01-09 1987-01-09 1986-03-20 1987-01-09 1987-10-01
 STANDARD DEVIATION          0.01       3.03       0.03      0.008      0.001




                               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          1          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       29         34         29         33         11
 MEAN                       0.017      0.002      0.002      0.002       385.
 MINIMUM                    0.005      0.001      0.001      0.001         5.
 DATE OF MINIMUM       1987-10-14 1985-10-22 1986-11-04 1985-03-20 1985-03-20
 10TH PERCENTILE            0.006      0.001      0.001      0.001         6.
 MEDIAN                     0.008      0.002      0.002      0.002        40.
 90TH PERCENTILE            0.025      0.004      0.002      0.002       278.
 MAXIMUM                    0.150      0.007      0.003      0.002      3500.
 DATE OF MAXIMUM       1987-02-23 1986-12-09 1987-01-09 1986-09-03 1985-10-22
 STANDARD DEVIATION         0.028      0.001      0.001      0.000      1037.




                             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          5         10          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9          1          2          0         12
 MEAN                        162.      0.001      0.001        0.1        0.0
 MINIMUM                       4.      0.001      0.001        0.1        0.0
 DATE OF MINIMUM       1985-03-20 1986-09-03 1985-03-20 1986-12-09 1985-03-20
 10TH PERCENTILE                                  0.001                   0.0
 MEDIAN                       33.      0.001      0.001        0.1        0.0
 90TH PERCENTILE                                  0.001                   0.0
 MAXIMUM                     850.      0.001      0.001        0.1        0.1
 DATE OF MAXIMUM       1985-10-22 1987-12-09 1987-12-09 1987-12-09 1986-03-20
 STANDARD DEVIATION          293.      0.000      0.000        0.0        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       22         25         22         11          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          3          7          0         45
 MEAN                       0.104      0.107      0.006      0.004      473.9
 MINIMUM                    0.100      0.100      0.005      0.001      116.1
 DATE OF MINIMUM       1986-10-20 1985-03-20 1986-09-03 1985-06-12 1987-11-12
 10TH PERCENTILE            0.100      0.100      0.005      0.001      246.5
 MEDIAN                     0.100      0.100      0.005      0.005      416.3
 90TH PERCENTILE            0.100      0.100      0.007      0.005      548.0
 MAXIMUM                    0.200      0.300      0.038      0.005     2090.0
 DATE OF MAXIMUM       1987-04-20 1987-06-22 1987-02-23 1987-12-09 1986-03-20
 STANDARD DEVIATION         0.019      0.038      0.006      0.002      366.7





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-02-13 TO 1987-11-02

 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          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       38         10         17         12         38
 MEAN                        432.        0.0        0.7       0.39       12.8
 MINIMUM                      41.        0.0        0.4       0.10        7.1
 DATE OF MINIMUM       1985-09-23 1985-02-13 1985-02-13 1985-08-02 1985-09-23
 10TH PERCENTILE             320.        0.0        0.5       0.10        8.0
 MEDIAN                      340.        0.0        0.7       0.50       15.0
 90TH PERCENTILE             671.        0.0        0.9       0.53       16.3
 MAXIMUM                     900.        0.0        1.0       0.70       16.4
 DATE OF MAXIMUM       1987-11-02 1987-11-02 1987-06-24 1985-10-29 1985-02-13
 STANDARD DEVIATION          179.        0.0        0.2       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        2          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       15         17         17         17         17
 MEAN                         0.2      80.88         9.        93.     37.118
 MINIMUM                      0.1       0.00         4.        36.     21.000
 DATE OF MINIMUM       1985-02-13 1987-11-02 1985-04-26 1985-04-26 1985-04-26
 10TH PERCENTILE              0.1      35.00         5.        40.     24.500
 MEDIAN                       0.2      87.00         9.        97.     39.000
 90TH PERCENTILE              0.3     103.70        12.       133.     46.000
 MAXIMUM                      0.4     122.00        17.       150.     58.000
 DATE OF MAXIMUM       1987-11-02 1987-07-23 1987-11-02 1987-11-02 1987-11-02
 STANDARD DEVIATION           0.1      27.82         3.        36.      9.772




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        6          3          0          4          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          8         11          7         10
 MEAN                       0.002       0.01       0.04      0.002      0.004
 MINIMUM                    0.001       0.00       0.01      0.001      0.001
 DATE OF MINIMUM       1985-02-13 1985-06-27 1985-08-02 1985-02-13 1986-02-25
 10TH PERCENTILE            0.001       0.00       0.01      0.001      0.001
 MEDIAN                     0.001       0.00       0.03      0.001      0.002
 90TH PERCENTILE            0.003       0.02       0.08      0.003      0.007
 MAXIMUM                    0.004       0.02       0.09      0.007      0.013
 DATE OF MAXIMUM       1985-08-02 1987-11-02 1986-02-25 1986-06-03 1986-10-29
 STANDARD DEVIATION         0.001       0.01       0.03      0.002      0.004




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        4          0          0         10          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        7         17         17          1         11
 MEAN                       0.001       133.       324.      0.001        0.1
 MINIMUM                    0.001         0.        10.      0.001        0.1
 DATE OF MINIMUM       1985-02-13 1985-10-29 1986-02-25 1985-02-13 1985-02-13
 10TH PERCENTILE            0.001         1.        17.      0.001        0.1
 MEDIAN                     0.001        57.       124.      0.001        0.1
 90TH PERCENTILE            0.002       297.       677.      0.001        0.1
 MAXIMUM                    0.003       960.      2500.      0.001        0.1
 DATE OF MAXIMUM       1987-11-02 1987-02-23 1985-08-02 1987-11-02 1987-11-02
 STANDARD DEVIATION         0.001       237.       599.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES        7          9          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        4          2         17
 MEAN                       0.155      0.003     1676.6
 MINIMUM                    0.100      0.001       22.7
 DATE OF MINIMUM       1985-02-13 1985-02-13 1987-11-02
 10TH PERCENTILE            0.100      0.001       97.0
 MEDIAN                     0.100      0.002     1682.2
 90TH PERCENTILE            0.200      0.005     2987.8
 MAXIMUM                    0.500      0.005     4078.1
 DATE OF MAXIMUM       1986-02-25 1987-11-02 1986-10-29
 STANDARD DEVIATION         0.121      0.002     1081.1





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-02-14 TO 1987-11-20

 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       14          8         11         12         14
 MEAN                        191.        0.0        0.5       0.47        9.6
 MINIMUM                     162.        0.0        0.2       0.30        7.7
 DATE OF MINIMUM       1985-11-20 1985-05-07 1985-11-20 1987-08-11 1986-08-12
 10TH PERCENTILE             164.                   0.2       0.32        7.7
 MEDIAN                      174.        0.0        0.4       0.45        8.9
 90TH PERCENTILE             183.                   0.8       0.60       11.5
 MAXIMUM                     420.        0.0        1.0       0.70       12.0
 DATE OF MAXIMUM       1985-05-21 1987-11-20 1987-05-20 1986-02-20 1985-11-20
 STANDARD DEVIATION           66.        0.0        0.3       0.11        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        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         11         12         12         12
 MEAN                         0.3      38.27         3.         1.     22.583
 MINIMUM                      0.3       0.00         3.         0.     21.000
 DATE OF MINIMUM       1985-02-14 1986-02-20 1985-02-14 1985-02-14 1986-05-22
 10TH PERCENTILE              0.3       0.00         3.         0.     21.200
 MEDIAN                       0.3       0.00         3.         1.     22.000
 90TH PERCENTILE              0.4      80.00         4.         1.     23.700
 MAXIMUM                      0.4     181.00         4.         2.     25.000
 DATE OF MAXIMUM       1987-11-20 1985-05-21 1986-11-05 1987-11-20 1985-05-07
 STANDARD DEVIATION           0.0      59.87         1.         1.      1.084




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        3          0          0          4          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          8          8          4          4
 MEAN                       0.002       0.00       0.02      0.002      0.001
 MINIMUM                    0.001       0.00       0.01      0.001      0.001
 DATE OF MINIMUM       1986-11-05 1985-11-20 1985-11-20 1985-11-20 1985-05-07
 10TH PERCENTILE                                                             
 MEDIAN                     0.001       0.00       0.02      0.001      0.001
 90TH PERCENTILE                                                             
 MAXIMUM                    0.004       0.02       0.03      0.005      0.002
 DATE OF MAXIMUM       1985-11-20 1985-05-07 1987-08-11 1985-05-07 1987-11-20
 STANDARD DEVIATION         0.001       0.01       0.01      0.001      0.000




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        0          0          0          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        8         13         13          1          8
 MEAN                       0.006       128.       217.      0.001        0.1
 MINIMUM                    0.004        15.        40.      0.001        0.0
 DATE OF MINIMUM       1985-05-07 1986-02-20 1985-02-14 1985-05-07 1987-02-24
 10TH PERCENTILE                         18.        40.                      
 MEDIAN                     0.006        83.        90.      0.001        0.1
 90TH PERCENTILE                        267.       613.                      
 MAXIMUM                    0.006       340.       640.      0.001        0.1
 DATE OF MAXIMUM       1987-08-11 1987-05-20 1987-08-11 1987-11-20 1986-11-05
 STANDARD DEVIATION         0.001       109.       235.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES        3          6          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        5          2         15
 MEAN                       0.550      0.004       12.4
 MINIMUM                    0.100      0.001        5.4
 DATE OF MINIMUM       1986-11-05 1985-11-20 1986-04-23
 10TH PERCENTILE                                    5.5
 MEDIAN                     0.200      0.005        5.9
 90TH PERCENTILE                                    6.4
 MAXIMUM                    1.600      0.005      103.9
 DATE OF MAXIMUM       1985-11-20 1987-11-20 1985-05-21
 STANDARD DEVIATION         0.621      0.002       25.3





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-09 TO 1987-12-30

 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          1          1          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14          3          1         13         13
 MEAN                        133.        0.0         2.        0.6       0.40
 MINIMUM                      84.        0.0                   0.2       0.10
 DATE OF MINIMUM       1987-02-18 1985-02-01            1986-02-07 1986-08-08
 10TH PERCENTILE              97.        0.0                   0.2       0.14
 MEDIAN                      132.        0.0                   0.5       0.40
 90TH PERCENTILE             156.        0.0                   0.8       0.67
 MAXIMUM                     173.        0.0                   1.2       0.77
 DATE OF MAXIMUM       1985-09-18 1987-11-16            1986-10-31 1985-08-21
 STANDARD DEVIATION           22.        0.0                   0.3       0.21




                            NO2-N         O2        BOD        COD          F
                                        DISS                             DISS
                            07207      08102      08201      08301      09104
                           mg/L N    mg/L O2    mg/L O2    mg/L O2     mg/L F


 NO. OF L-FLAGGED VALUES        5          0          0          0          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4         14          2          2          7
 MEAN                        0.01        8.7         1.         8.        0.1
 MINIMUM                     0.01        5.8                              0.1
 DATE OF MINIMUM       1986-02-07 1987-08-14                       1985-02-01
 10TH PERCENTILE                         5.8                              0.1
 MEDIAN                      0.01        8.7                              0.1
 90TH PERCENTILE                        11.1                              0.1
 MAXIMUM                     0.02       11.4                              0.2
 DATE OF MAXIMUM       1986-08-08 1987-02-18                       1987-11-16
 STANDARD DEVIATION          0.00        1.9                              0.0




                              ALK         Mg         Cl         Ca         Cr
                            TOTAL       DISS       DISS       DISS       DISS
                            10121      12102      17203      20103      24052
                            MEQ/L    mg/L Mg    mg/L Cl    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        0          0          0          0         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         11         11         11          1
 MEAN                       40.36         1.         6.     15.409      0.001
 MINIMUM                     0.00         1.         4.      8.500      0.001
 DATE OF MINIMUM       1987-11-16 1985-02-01 1987-08-14 1987-02-18 1985-02-01
 10TH PERCENTILE             2.10         1.         4.      8.850      0.001
 MEDIAN                     47.00         1.         6.     16.000      0.001
 90TH PERCENTILE            50.00         2.         7.     17.900      0.001
 MAXIMUM                    54.00         2.         8.     20.000      0.001
 DATE OF MAXIMUM       1987-05-15 1986-10-31 1986-10-31 1987-05-15 1987-11-16
 STANDARD DEVIATION         16.14         0.         1.      3.184      0.000





                               Mn         Fe         Ni         Cu         As
                             DISS       DISS       DISS       DISS       DISS
                            25104      26104      28102      29105      33104
                          mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu    mg/L As


 NO. OF L-FLAGGED VALUES        5          0          5          4         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6         11          6          7          1
 MEAN                        0.01       0.07      0.001      0.002      0.001
 MINIMUM                     0.00       0.01      0.001      0.001      0.001
 DATE OF MINIMUM       1985-04-22 1985-07-16 1985-02-01 1985-02-01 1985-02-01
 10TH PERCENTILE             0.00       0.01      0.001      0.001      0.001
 MEDIAN                      0.00       0.03      0.001      0.001      0.001
 90TH PERCENTILE             0.01       0.13      0.002      0.006      0.001
 MAXIMUM                     0.04       0.29      0.003      0.007      0.002
 DATE OF MAXIMUM       1985-07-16 1985-02-01 1985-07-16 1986-08-08 1986-08-08
 STANDARD DEVIATION          0.01       0.09      0.001      0.002      0.000




                         FAEC COL       FAEC         Cd         Ba         Hg
                                       STREP       DISS       DISS       DISS
                            36012      36102      48101      56101      80111
                         No/100ml   No/100ml    mg/L Cd    mg/L Ba    ug/L Hg


 NO. OF L-FLAGGED VALUES        1          0          8          0          8
 NO. OF G-FLAGGED VALUES        0          2          0          0          0
 NO. OF UNFLAGGED VALUES       10         10          3         11          3
 MEAN                         99.       307.      0.001        0.0      0.109
 MINIMUM                       1.         4.      0.001        0.0      0.100
 DATE OF MINIMUM       1986-04-24 1985-02-01 1985-02-01 1985-02-01 1985-04-22
 10TH PERCENTILE               1.        10.      0.001        0.0      0.100
 MEDIAN                       64.        78.      0.001        0.0      0.100
 90TH PERCENTILE             316.       556.      0.001        0.0      0.100
 MAXIMUM                     390.      2000.      0.001        0.0      0.200
 DATE OF MAXIMUM       1987-11-16 1985-07-16 1987-11-16 1987-11-16 1985-02-01
 STANDARD DEVIATION          136.       565.      0.000        0.0      0.030




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


 NO. OF L-FLAGGED VALUES        7          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        4        558
 MEAN                       0.004      727.5
 MINIMUM                    0.001        0.0
 DATE OF MINIMUM       1985-11-05 1986-10-24
 10TH PERCENTILE            0.001      217.5
 MEDIAN                     0.005      474.3
 90TH PERCENTILE            0.005     1585.9
 MAXIMUM                    0.005     2013.6
 DATE OF MAXIMUM       1987-11-16 1987-01-23
 STANDARD DEVIATION         0.002      515.9





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-02-26 TO 1986-08-11

 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          5          0          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10          0         10          8          9
 MEAN                        183.        0.0        0.7       0.25        8.5
 MINIMUM                     158.        0.0        0.4       0.10        6.5
 DATE OF MINIMUM       1985-02-26 1985-04-15 1985-10-24 1985-06-10 1986-08-11
 10TH PERCENTILE             158.                   0.4       0.10           
 MEDIAN                      184.        0.0        0.6       0.20        7.9
 90TH PERCENTILE             195.                   0.7       0.40           
 MAXIMUM                     203.        0.0        2.2       0.60       12.1
 DATE OF MAXIMUM       1986-04-15 1986-04-15 1985-04-15 1985-02-26 1986-03-04
 STANDARD DEVIATION           14.        0.0        0.5       0.18        2.0




                                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        9         10         10         10         10
 MEAN                         0.3      70.20         4.         9.     21.200
 MINIMUM                      0.1      56.00         3.         6.     18.000
 DATE OF MINIMUM       1985-04-15 1985-10-24 1985-02-26 1985-06-10 1985-06-10
 10TH PERCENTILE              0.1      56.00         3.         6.     18.000
 MEDIAN                       0.2      66.50         4.         9.     21.000
 90TH PERCENTILE              0.3      86.00         4.        11.     23.000
 MAXIMUM                      1.9      98.00         4.        11.     25.000
 DATE OF MAXIMUM       1985-02-26 1986-06-16 1986-08-11 1986-03-04 1986-04-15
 STANDARD DEVIATION           0.6      13.09         1.         2.      2.348




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        3          0          0          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          5          5          3          5
 MEAN                       0.003       0.01       0.02      0.002      0.004
 MINIMUM                    0.001       0.01       0.01      0.001      0.002
 DATE OF MINIMUM       1985-04-15 1985-04-15 1985-04-15 1985-10-24 1985-12-10
 10TH PERCENTILE                                                             
 MEDIAN                     0.001       0.01       0.01      0.002      0.004
 90TH PERCENTILE                                                             
 MAXIMUM                    0.008       0.02       0.04      0.005      0.007
 DATE OF MAXIMUM       1985-06-10 1986-04-15 1985-12-10 1985-06-10 1985-10-24
 STANDARD DEVIATION         0.003       0.01       0.01      0.002      0.002




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        4          0          0          4          0
 NO. OF G-FLAGGED VALUES        0          0          1          0          0
 NO. OF UNFLAGGED VALUES        1         10          9          1          5
 MEAN                       0.001        13.       944.      0.001        0.0
 MINIMUM                    0.001         2.         2.      0.001        0.0
 DATE OF MINIMUM       1985-04-15 1986-03-04 1986-03-04 1985-04-15 1985-04-15
 10TH PERCENTILE                          2.         2.                      
 MEDIAN                     0.001         5.       330.      0.001        0.0
 90TH PERCENTILE                         36.      2000.                      
 MAXIMUM                    0.001        47.      2760.      0.002        0.0
 DATE OF MAXIMUM       1986-04-15 1985-04-15 1985-06-10 1985-12-10 1986-04-15
 STANDARD DEVIATION         0.000        16.      1059.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES        0          3          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        1          2          5         10
 MEAN                       0.100      0.120      0.004      864.0
 MINIMUM                               0.100      0.002      141.6
 DATE OF MINIMUM                  1985-04-15 1985-04-15 1986-03-04
 10TH PERCENTILE                                             141.6
 MEDIAN                                0.100      0.003      814.2
 90TH PERCENTILE                                            1744.5
 MAXIMUM                               0.200      0.010     1925.8
 DATE OF MAXIMUM                  1985-06-10 1985-10-24 1985-02-26
 STANDARD DEVIATION                    0.045      0.003      631.6





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-11 TO 1987-08-11

 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          5          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       52          6          8         11         60
 MEAN                        116.        0.0        0.3       0.32       11.4
 MINIMUM                      65.        0.0        0.2       0.10       10.0
 DATE OF MINIMUM       1987-06-23 1985-06-26 1985-01-11 1985-06-27 1987-08-11
 10TH PERCENTILE              75.                   0.2       0.10       10.3
 MEDIAN                       97.        0.0        0.3       0.25       11.5
 90TH PERCENTILE             197.                   0.5       0.57       12.3
 MAXIMUM                     210.        0.0        1.1       0.60       12.8
 DATE OF MAXIMUM       1985-01-11 1987-08-11 1987-05-28 1985-05-30 1985-01-11
 STANDARD DEVIATION           47.        0.0        0.2       0.18        0.8




                                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       11          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         10         13         13         13
 MEAN                         0.1      35.20         2.         9.     14.385
 MINIMUM                      0.1      25.00         1.         3.     10.000
 DATE OF MINIMUM       1985-01-11 1985-06-26 1985-05-30 1987-06-23 1985-05-30
 10TH PERCENTILE              0.1      25.00         1.         3.     10.000
 MEDIAN                       0.1      33.00         2.         5.     12.000
 90TH PERCENTILE              0.1      48.00         3.        21.     22.700
 MAXIMUM                      0.3      48.00         3.        22.     23.000
 DATE OF MAXIMUM       1987-06-23 1987-02-19 1987-02-19 1987-02-19 1986-02-11
 STANDARD DEVIATION           0.1       8.61         1.         7.      4.891




                               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        1          1          1          8          1
 MEAN                       0.020      0.002       0.19       0.00       8.80
 MINIMUM                               0.001                  0.00           
 DATE OF MINIMUM                  1985-06-26            1985-06-26           
 10TH PERCENTILE                                                             
 MEDIAN                                0.001                  0.00           
 90TH PERCENTILE                                                             
 MAXIMUM                               0.010                  0.01           
 DATE OF MAXIMUM                  1985-06-27            1987-08-11           
 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          6          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        8          1          2          1          7
 MEAN                        0.04      0.013      0.001      0.020      0.003
 MINIMUM                     0.01                 0.001                 0.001
 DATE OF MINIMUM       1986-02-11            1985-06-26            1986-02-11
 10TH PERCENTILE                                                             
 MEDIAN                      0.02                 0.001                 0.002
 90TH PERCENTILE                                                             
 MAXIMUM                     0.14                 0.003                 0.006
 DATE OF MAXIMUM       1985-06-27            1987-02-19            1987-05-28
 STANDARD DEVIATION          0.04                 0.001                 0.002




                               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        8          0          5          0          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         12          6          1          2
 MEAN                       0.001        10.         3.      0.001      0.001
 MINIMUM                    0.001         1.         1.                 0.001
 DATE OF MINIMUM       1985-06-26 1985-06-26 1985-01-11            1985-06-26
 10TH PERCENTILE                          1.         1.                      
 MEDIAN                     0.001         7.         1.                 0.001
 90TH PERCENTILE                         22.         6.                      
 MAXIMUM                    0.001        27.         7.                 0.002
 DATE OF MAXIMUM       1987-08-11 1986-08-26 1986-08-26            1986-06-26
 STANDARD DEVIATION         0.000        10.         2.                 0.000




                               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          0          4          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          8          1          4          1
 MEAN                         0.1        0.0      0.100      0.188      0.006
 MINIMUM                                 0.0                 0.100           
 DATE OF MINIMUM                  1985-06-26            1985-06-26           
 10TH PERCENTILE                                                             
 MEDIAN                                  0.0                 0.100           
 90TH PERCENTILE                                                             
 MAXIMUM                                 0.0                 0.600           
 DATE OF MAXIMUM                  1987-08-11            1987-05-28           
 STANDARD DEVIATION                      0.0                 0.173           




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


 NO. OF L-FLAGGED VALUES        5          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        3         21
 MEAN                       0.004      256.9
 MINIMUM                    0.002       13.9
 DATE OF MINIMUM       1985-06-26 1985-02-28
 10TH PERCENTILE                        18.4
 MEDIAN                     0.005      248.1
 90TH PERCENTILE                       475.2
 MAXIMUM                    0.005      843.9
 DATE OF MAXIMUM       1987-08-11 1985-06-27
 STANDARD DEVIATION         0.001      201.0





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-03-19 TO 1987-12-01

 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          4          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          2          8          8          5
 MEAN                        178.        0.0        0.6       0.54       11.4
 MINIMUM                     140.        0.0        0.4       0.50        9.9
 DATE OF MINIMUM       1987-12-01 1985-03-19 1985-03-19 1985-08-21 1986-05-06
 10TH PERCENTILE                                                             
 MEDIAN                      181.        0.0        0.6       0.50       10.4
 90TH PERCENTILE                                                             
 MAXIMUM                     225.        0.0        1.0       0.70       14.3
 DATE OF MAXIMUM       1985-06-11 1987-12-01 1985-06-11 1985-03-19 1987-12-01
 STANDARD DEVIATION           31.        0.0        0.2       0.07        1.9




                                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        3          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          6          8          8          8
 MEAN                         0.1      43.50         4.        14.     20.875
 MINIMUM                      0.1       0.00         3.         6.     12.000
 DATE OF MINIMUM       1985-03-19 1987-12-01 1985-11-26 1987-03-31 1987-03-31
 10TH PERCENTILE                                                             
 MEDIAN                       0.1      53.50         4.        12.     22.500
 90TH PERCENTILE                                                             
 MAXIMUM                      0.1      58.00         4.        22.     25.000
 DATE OF MAXIMUM       1987-12-01 1985-08-21 1985-08-21 1985-08-21 1985-06-11
 STANDARD DEVIATION           0.0      22.44         1.         5.      4.324




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        6          0          0          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          7          6          4          6
 MEAN                       0.001       0.02       0.16      0.002      0.005
 MINIMUM                    0.001       0.01       0.02      0.001      0.001
 DATE OF MINIMUM       1985-03-19 1985-08-07 1985-08-21 1985-06-11 1987-03-31
 10TH PERCENTILE                                                             
 MEDIAN                     0.001       0.02       0.16      0.001      0.005
 90TH PERCENTILE                                                             
 MAXIMUM                    0.001       0.05       0.32      0.005      0.009
 DATE OF MAXIMUM       1987-12-01 1985-06-11 1987-03-31 1985-03-19 1985-08-21
 STANDARD DEVIATION         0.000       0.01       0.12      0.002      0.003





                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        6          0          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          1          0          0
 NO. OF UNFLAGGED VALUES        0          7          6          1          6
 MEAN                       0.001       396.      1035.      0.001        0.0
 MINIMUM                    0.001       200.         1.      0.001        0.0
 DATE OF MINIMUM       1985-03-19 1985-08-21 1985-08-21 1985-03-19 1985-03-19
 10TH PERCENTILE                                                             
 MEDIAN                     0.001       390.       240.      0.001        0.0
 90TH PERCENTILE                                                             
 MAXIMUM                    0.001       640.      4500.      0.002        0.0
 DATE OF MAXIMUM       1987-12-01 1987-12-01 1987-12-01 1985-08-21 1987-12-01
 STANDARD DEVIATION         0.000       142.      1679.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES        3          3          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          3          8
 MEAN                       0.167      0.002      571.2
 MINIMUM                    0.100      0.001      112.1
 DATE OF MINIMUM       1985-03-19 1985-03-19 1985-08-21
 10TH PERCENTILE                                       
 MEDIAN                     0.100      0.002      371.0
 90TH PERCENTILE                                       
 MAXIMUM                    0.400      0.005     1781.3
 DATE OF MAXIMUM       1985-06-11 1987-12-01 1986-03-19
 STANDARD DEVIATION         0.121      0.002      576.6





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-17 TO 1987-10-21

 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         10          3          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12          1          8         12         12
 MEAN                         94.        0.0        0.4       0.29       11.9
 MINIMUM                      85.        0.0        0.2       0.20        8.6
 DATE OF MINIMUM       1986-04-17 1985-01-17 1985-01-17 1985-04-17 1987-07-21
 10TH PERCENTILE              86.        0.0        0.2       0.22        8.9
 MEDIAN                       94.        0.0        0.3       0.30       11.4
 90TH PERCENTILE              97.        0.0        0.6       0.30       13.9
 MAXIMUM                      97.        0.0        1.0       0.30       14.0
 DATE OF MAXIMUM       1986-01-08 1987-10-21 1987-04-15 1987-10-21 1986-01-08
 STANDARD DEVIATION            4.        0.0        0.2       0.03        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        8          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3         11         11         11         11
 MEAN                         0.1      42.45         3.         1.     13.364
 MINIMUM                      0.1      39.00         2.         1.     13.000
 DATE OF MINIMUM       1985-01-17 1986-10-22 1985-01-17 1985-01-17 1985-04-17
 10TH PERCENTILE              0.1      39.10         2.         1.     13.000
 MEDIAN                       0.1      42.00         3.         1.     13.000
 90TH PERCENTILE              0.2      44.00         3.         2.     14.000
 MAXIMUM                      0.4      46.00         3.         2.     14.000
 DATE OF MAXIMUM       1987-07-21 1986-01-08 1987-10-21 1987-01-06 1986-10-22
 STANDARD DEVIATION           0.1       2.02         1.         0.      0.505




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        6          6          2          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          5          9          4         11
 MEAN                       0.004       0.00       0.01      0.002      0.003
 MINIMUM                    0.001       0.00       0.00      0.001      0.001
 DATE OF MINIMUM       1985-01-17 1985-01-17 1985-01-17 1985-01-17 1987-07-21
 10TH PERCENTILE            0.001       0.00       0.00      0.001      0.001
 MEDIAN                     0.001       0.00       0.01      0.001      0.003
 90TH PERCENTILE            0.009       0.00       0.01      0.004      0.005
 MAXIMUM                    0.014       0.00       0.02      0.010      0.005
 DATE OF MAXIMUM       1985-10-17 1987-10-21 1985-04-17 1985-04-17 1985-10-17
 STANDARD DEVIATION         0.004       0.00       0.01      0.003      0.001




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES       11          8          8         11          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          4          4          0         11
 MEAN                       0.001         2.         2.      0.001        0.0
 MINIMUM                    0.001         1.         1.      0.001        0.0
 DATE OF MINIMUM       1985-01-17 1985-01-17 1985-01-17 1985-01-17 1985-01-17
 10TH PERCENTILE            0.001         1.         1.      0.001        0.0
 MEDIAN                     0.001         1.         1.      0.001        0.0
 90TH PERCENTILE            0.001         3.         3.      0.001        0.0
 MAXIMUM                    0.001         4.         7.      0.001        0.0
 DATE OF MAXIMUM       1987-10-21 1987-07-21 1985-10-17 1987-10-21 1987-10-21
 STANDARD DEVIATION         0.000         1.         2.      0.000        0.0




                               Hg         Pb
                             DISS       DISS
                            80111      82101
                          ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES       10          6
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        1          5
 MEAN                       0.109      0.004
 MINIMUM                    0.100      0.001
 DATE OF MINIMUM       1985-01-17 1985-10-17
 10TH PERCENTILE            0.100      0.001
 MEDIAN                     0.100      0.005
 90TH PERCENTILE            0.100      0.006
 MAXIMUM                    0.200      0.006
 DATE OF MAXIMUM       1987-07-21 1987-10-21
 STANDARD DEVIATION         0.030      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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-03-19 TO 1987-12-08

 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          5          3          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       18          6         15         18         18
 MEAN                        209.        0.0        0.3       0.28       11.2
 MINIMUM                     198.        0.0        0.1       0.20        6.3
 DATE OF MINIMUM       1986-11-19 1985-03-19 1985-05-31 1985-08-27 1987-05-29
 10TH PERCENTILE             200.        0.0        0.2       0.20        8.1
 MEDIAN                      208.        0.0        0.3       0.30       11.5
 90TH PERCENTILE             215.        0.0        0.5       0.30       14.0
 MAXIMUM                     223.        0.0        0.9       0.30       14.1
 DATE OF MAXIMUM       1985-03-19 1987-11-23 1987-03-31 1985-07-31 1986-03-25
 STANDARD DEVIATION            6.        0.0        0.2       0.04        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        5          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         17         17         17         17
 MEAN                         0.1      62.88         7.         7.     27.529
 MINIMUM                      0.1       0.00         7.         6.     27.000
 DATE OF MINIMUM       1985-03-19 1986-11-19 1985-03-19 1985-03-19 1985-07-31
 10TH PERCENTILE              0.1       0.00         7.         6.     27.000
 MEDIAN                       0.1      82.00         7.         6.     27.000
 90TH PERCENTILE              0.1      84.30         8.         8.     28.000
 MAXIMUM                      0.2      86.00         8.        11.     29.000
 DATE OF MAXIMUM       1987-12-08 1986-05-29 1987-05-29 1987-05-29 1986-03-25
 STANDARD DEVIATION           0.0      36.03         0.         1.      0.624




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        9         10          8          2          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1          3          9          7
 MEAN                       0.002       0.00       0.00      0.001      0.001
 MINIMUM                    0.001       0.00       0.00      0.001      0.001
 DATE OF MINIMUM       1985-03-19 1985-03-19 1985-05-31 1985-03-19 1985-03-19
 10TH PERCENTILE            0.001       0.00       0.00      0.001      0.001
 MEDIAN                     0.001       0.00       0.00      0.001      0.001
 90TH PERCENTILE            0.003       0.00       0.01      0.002      0.001
 MAXIMUM                    0.006       0.00       0.01      0.004      0.002
 DATE OF MAXIMUM       1985-05-31 1987-11-23 1986-05-29 1986-11-19 1985-08-27
 STANDARD DEVIATION         0.002       0.00       0.00      0.001      0.000





                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES       10          5          4         11          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         10         12          0         11
 MEAN                       0.001         1.        20.      0.001        0.0
 MINIMUM                    0.001         1.         1.      0.001        0.0
 DATE OF MINIMUM       1985-03-19 1985-03-19 1985-03-19 1985-03-19 1985-03-19
 10TH PERCENTILE            0.001         1.         1.      0.001        0.0
 MEDIAN                     0.001         1.         4.      0.001        0.0
 90TH PERCENTILE            0.001         2.        78.      0.001        0.0
 MAXIMUM                    0.001         3.       126.      0.001        0.0
 DATE OF MAXIMUM       1987-11-23 1987-11-23 1987-03-31 1987-11-23 1987-11-23
 STANDARD DEVIATION         0.000         1.        38.      0.000        0.0




                               Hg         Pb
                             DISS       DISS
                            80111      82101
                          ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES       11          8
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        0          3
 MEAN                       0.100      0.004
 MINIMUM                    0.100      0.001
 DATE OF MINIMUM       1985-03-19 1985-08-27
 10TH PERCENTILE            0.100      0.001
 MEDIAN                     0.100      0.005
 90TH PERCENTILE            0.100      0.005
 MAXIMUM                    0.100      0.007
 DATE OF MAXIMUM       1987-11-23 1985-03-19
 STANDARD DEVIATION         0.000      0.002





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-05-21 TO 1987-12-07

 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          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       92          9         20         11         89
 MEAN                        279.        0.0        0.6       0.17       10.1
 MINIMUM                     239.        0.0        0.1       0.10        8.7
 DATE OF MINIMUM       1986-10-29 1985-05-21 1987-07-28 1985-10-30 1985-06-17
 10TH PERCENTILE             263.        0.0        0.2       0.10        8.9
 MEDIAN                      277.        0.0        0.4       0.15       10.2
 90TH PERCENTILE             284.        0.0        0.8       0.27       11.4
 MAXIMUM                     627.        0.0        4.3       0.30       16.4
 DATE OF MAXIMUM       1985-06-17 1987-11-05 1987-11-05 1985-06-13 1987-04-14
 STANDARD DEVIATION           38.        0.0        0.9       0.08        1.2




                                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        3          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9         13         18         12         19
 MEAN                         0.2      87.46         9.        16.     38.158
 MINIMUM                      0.1       0.00         7.        12.     34.000
 DATE OF MINIMUM       1985-05-21 1987-11-05 1985-06-13 1985-08-21 1985-06-13
 10TH PERCENTILE              0.1      20.40         8.        12.     34.000
 MEDIAN                       0.1      84.00         8.        14.     35.000
 90TH PERCENTILE              0.3      97.40         9.        17.     39.000
 MAXIMUM                      0.9     210.00        20.        36.     78.000
 DATE OF MAXIMUM       1987-11-05 1985-06-17 1985-06-17 1985-06-17 1985-06-17
 STANDARD DEVIATION           0.2      44.56         3.         6.      9.765




                               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          2          8          0          5
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          7          4          9          6
 MEAN                       0.002       0.02       0.00       2.22       0.00
 MINIMUM                    0.001       0.01       0.00       0.11       0.00
 DATE OF MINIMUM       1985-05-21 1987-05-19 1985-05-21 1987-06-25 1985-05-21
 10TH PERCENTILE            0.001                  0.00                  0.00
 MEDIAN                     0.001       0.02       0.00       0.75       0.00
 90TH PERCENTILE            0.002                  0.00                  0.01
 MAXIMUM                    0.012       0.05       0.01      11.00       0.02
 DATE OF MAXIMUM       1986-08-21 1987-12-07 1985-06-17 1987-04-27 1986-06-19
 STANDARD DEVIATION         0.003       0.01       0.00       3.47       0.01




                               Ni         Ni         Cu         Cu         As
                            TOTAL       DISS      TOTAL       DISS       DISS
                            28001      28102      29006      29105      33104
                          mg/L Ni    mg/L Ni    mg/L Cu    mg/L Cu    mg/L As


 NO. OF L-FLAGGED VALUES        6          8          6          0         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          6          3         14          2
 MEAN                       0.045      0.002      0.010      0.004      0.001
 MINIMUM                    0.001      0.001      0.005      0.001      0.001
 DATE OF MINIMUM       1987-04-27 1985-06-13 1987-11-05 1985-06-13 1985-05-21
 10TH PERCENTILE                       0.001                 0.001      0.001
 MEDIAN                     0.002      0.001      0.010      0.004      0.001
 90TH PERCENTILE                       0.002                 0.006      0.001
 MAXIMUM                    0.100      0.007      0.020      0.008      0.002
 DATE OF MAXIMUM       1987-05-19 1985-06-17 1987-06-25 1985-05-21 1986-10-29
 STANDARD DEVIATION         0.052      0.002      0.004      0.002      0.000




                         FAEC COL       FAEC         Cd         Cd         Ba
                                       STREP      TOTAL       DISS       DISS
                            36012      36102      48001      48101      56101
                         No/100ml   No/100ml    mg/L Cd    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        1          1          8         10          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         10          1          3         12
 MEAN                         79.        16.      0.009      0.001        0.0
 MINIMUM                      20.         4.      0.001      0.001        0.0
 DATE OF MINIMUM       1985-10-30 1985-10-30 1987-11-05 1985-05-21 1985-05-21
 10TH PERCENTILE              20.         4.                 0.001        0.0
 MEDIAN                       60.         8.      0.010      0.001        0.0
 90TH PERCENTILE             103.        20.                 0.001        0.0
 MAXIMUM                     310.        74.      0.020      0.003        0.1
 DATE OF MAXIMUM       1987-08-18 1985-08-21 1987-06-25 1987-11-05 1985-06-17
 STANDARD DEVIATION           80.        20.      0.006      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        8          7          8         11          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          5          1          4          5
 MEAN                       0.100      0.217      0.047      0.005     5722.9
 MINIMUM                    0.100      0.100      0.005      0.001       11.3
 DATE OF MINIMUM       1987-04-14 1985-05-21 1987-04-27 1985-06-13 1985-06-17
 10TH PERCENTILE                       0.100                 0.001           
 MEDIAN                     0.100      0.100      0.005      0.005     7334.9
 90TH PERCENTILE                       0.270                 0.005           
 MAXIMUM                    0.100      1.200      0.100      0.009     7816.3
 DATE OF MAXIMUM       1987-12-07 1986-10-29 1987-05-19 1985-05-21 1986-06-19
 STANDARD DEVIATION         0.000      0.316      0.050      0.002     3262.6





 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  - 1985-01-01 TO 1987-12-31
 PERIOD OF RECORD FROM  - 1985-01-28 TO 1987-11-04

 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          2          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       37          8         16         14         51
 MEAN                        312.        0.0        0.5       0.21        9.1
 MINIMUM                      84.        0.0        0.3       0.10        7.5
 DATE OF MINIMUM       1985-08-12 1985-03-25 1985-03-25 1985-07-29 1985-08-12
 10TH PERCENTILE             280.        0.0        0.3       0.10        8.2
 MEDIAN                      332.        0.0        0.4       0.20        8.6
 90TH PERCENTILE             336.        0.0        0.5       0.30       10.6
 MAXIMUM                     338.        0.0        1.2       0.40       14.8
 DATE OF MAXIMUM       1987-09-03 1987-11-04 1987-08-14 1986-03-26 1985-03-25
 STANDARD DEVIATION           56.        0.0        0.2       0.10        1.6




                                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       14         15         16         16         16
 MEAN                         0.2      80.00         7.        19.     33.188
 MINIMUM                      0.1       0.00         1.         3.     11.000
 DATE OF MINIMUM       1985-03-26 1987-11-04 1985-03-26 1985-03-26 1985-08-12
 10TH PERCENTILE              0.1      12.50         2.         3.     14.000
 MEDIAN                       0.2      94.00         8.        22.     37.000
 90TH PERCENTILE              0.2      98.00         8.        24.     38.000
 MAXIMUM                      0.2      99.00         8.        25.     39.000
 DATE OF MAXIMUM       1985-03-25 1986-10-28 1985-03-25 1985-01-28 1985-01-28
 STANDARD DEVIATION           0.1      31.36         2.         7.      8.681




                               Cr         Mn         Fe         Ni         Cu
                             DISS       DISS       DISS       DISS       DISS
                            24052      25104      26104      28102      29105
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu


 NO. OF L-FLAGGED VALUES        7          2          1          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          8          9          9         10
 MEAN                       0.001       0.00       0.04      0.003      0.002
 MINIMUM                    0.001       0.00       0.00      0.001      0.001
 DATE OF MINIMUM       1985-03-25 1985-03-25 1985-07-29 1985-03-25 1985-03-26
 10TH PERCENTILE            0.001       0.00       0.00      0.001      0.001
 MEDIAN                     0.001       0.00       0.01      0.003      0.002
 90TH PERCENTILE            0.001       0.02       0.14      0.005      0.004
 MAXIMUM                    0.002       0.03       0.22      0.005      0.004
 DATE OF MAXIMUM       1985-07-29 1985-03-26 1985-08-12 1986-06-25 1985-08-26
 STANDARD DEVIATION         0.000       0.01       0.08      0.002      0.001




                               As   FAEC COL       FAEC         Cd         Ba
                             DISS                 STREP       DISS       DISS
                            33104      36012      36102      48101      56101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Ba


 NO. OF L-FLAGGED VALUES        4          0          6          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6         15          9          1         10
 MEAN                       0.001         8.         3.      0.001        0.0
 MINIMUM                    0.001         1.         1.      0.001        0.0
 DATE OF MINIMUM       1985-03-25 1985-03-25 1985-01-28 1985-03-25 1985-03-25
 10TH PERCENTILE            0.001         1.         1.      0.001        0.0
 MEDIAN                     0.001         4.         1.      0.001        0.0
 90TH PERCENTILE            0.001        16.         6.      0.001        0.0
 MAXIMUM                    0.001        40.        20.      0.001        0.0
 DATE OF MAXIMUM       1987-11-04 1985-08-12 1985-03-26 1987-11-04 1987-11-04
 STANDARD DEVIATION         0.000        10.         5.      0.000        0.0




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


 NO. OF L-FLAGGED VALUES        4          7          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        6          3         15
 MEAN                       0.160      0.002     7347.3
 MINIMUM                    0.100      0.001        8.1
 DATE OF MINIMUM       1985-10-28 1985-03-25 1985-08-12
 10TH PERCENTILE            0.100      0.001       64.7
 MEDIAN                     0.150      0.001     8297.8
 90TH PERCENTILE            0.200      0.005     9232.3
 MAXIMUM                    0.300      0.005     9628.8
 DATE OF MAXIMUM       1985-03-26 1987-11-04 1986-10-28
 STANDARD DEVIATION         0.070      0.002     3032.0



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Last updated: 2001-07-30