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STATISTICS FOR JAPAN

STATISTICS FOR JAPAN


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-01-08   PAGE 340

 STATION - TOYOHIRA RIVER AT SHIRAIKAWA             STATION NO. 080001
 COUNTRY - JAPAN                                    DEPTH(M)       5.5
 LOCATION - OCT. 2  LAT. 42/57/48  LONG. 141/16/22  ELEVATION(M) 149.5
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-04 TO 1990-12-25

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN      NO2-N      NO3-N
                             COND                                            
                            02041      02061      06606      07207      07313
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         16          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES      156        156          0         37         40
 MEAN                        129.        8.3      0.010       0.00       0.16
 MINIMUM                      56.        1.1      0.010       0.00       0.09
 DATE OF MINIMUM       1989-05-22 1988-01-18 1988-01-12 1988-03-09 1989-06-15
 10TH PERCENTILE              75.        2.0      0.010       0.00       0.11
 MEDIAN                      128.        6.8      0.010       0.00       0.16
 90TH PERCENTILE             179.       17.2      0.010       0.00       0.21
 MAXIMUM                     213.       20.0      0.010       0.01       0.30
 DATE OF MAXIMUM       1990-10-09 1988-08-22 1990-10-03 1988-02-09 1988-04-13
 STANDARD DEVIATION           39.        5.8      0.000       0.00       0.05




                              NH3         O2        BOD          F        ALK
                                        DISS                  DISS      TOTAL
                            07556      08101      08201      09104      10102
                           mg/L N    mg/L O2    mg/L O2     mg/L F       mg/L


 NO. OF L-FLAGGED VALUES      155          0          1          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         40         37         12        156
 MEAN                        0.04       12.0         1.        0.0      18.29
 MINIMUM                     0.00        7.9         0.        0.0       9.00
 DATE OF MINIMUM       1989-06-26 1990-08-15 1988-01-12 1988-07-18 1989-05-22
 10TH PERCENTILE             0.04        9.3         1.        0.0      12.00
 MEDIAN                      0.04       12.1         1.        0.0      19.00
 90TH PERCENTILE             0.04       14.3         2.        0.1      23.00
 MAXIMUM                     0.04       14.5         4.        0.1      27.00
 DATE OF MAXIMUM       1989-06-19 1989-02-07 1990-06-13 1989-04-11 1990-11-05
 STANDARD DEVIATION          0.00        1.9         1.        0.0       3.89




                               pH   SUSP SOL    P ORTHO   SULPHATE         Cl
                                     105 DEG      TOTAL                  DISS
                            10302      10401      15205      16306      17204
                         pH UNITS       mg/L     mg/L P   mg/L SO4    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          4          4          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES      156         27         33         16         49
 MEAN                         7.0         8.      0.027        16.        18.
 MINIMUM                      6.7         1.      0.006        12.         6.
 DATE OF MINIMUM       1988-04-20 1988-01-12 1989-01-12 1988-04-20 1989-05-17
 10TH PERCENTILE              6.9         1.      0.006        13.         8.
 MEDIAN                       7.0         5.      0.020        16.        18.
 90TH PERCENTILE              7.2        12.      0.060        19.        27.
 MAXIMUM                      7.3        67.      0.080        21.        29.
 DATE OF MAXIMUM       1989-09-25 1988-09-12 1990-03-07 1988-10-12 1988-07-18
 STANDARD DEVIATION           0.1        12.      0.018         3.         6.




                               Cr         Mn         Mn         Fe         Cu
                            TOTAL      TOTAL       DISS      TOTAL      TOTAL
                            24002      25004      25104      26002      29006
                          mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES       16          0          0          0         16
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0        147        156        148          0
 MEAN                       0.013       0.06       0.03       0.32      0.010
 MINIMUM                    0.010       0.01       0.01       0.10      0.010
 DATE OF MINIMUM       1988-01-12 1990-10-29 1989-06-15 1990-07-23 1988-01-12
 10TH PERCENTILE            0.010       0.03       0.02       0.13      0.010
 MEDIAN                     0.010       0.05       0.03       0.22      0.010
 90TH PERCENTILE            0.020       0.10       0.05       0.47      0.010
 MAXIMUM                    0.020       0.21       0.10       4.20      0.010
 DATE OF MAXIMUM       1990-10-03 1989-12-19 1990-02-26 1989-09-04 1990-10-03
 STANDARD DEVIATION         0.005       0.03       0.01       0.42      0.000




                               Zn         As   COLIFORM   FAEC COL         Cd
                            TOTAL      TOTAL      TOTAL                 TOTAL
                            30004      33003      36001      36011      48002
                          mg/L Zn    mg/L As   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        2          1          0          0         16
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         15        153         34          0
 MEAN                       0.015      0.020      1667.       279.      0.005
 MINIMUM                    0.005      0.005        79.         4.      0.000
 DATE OF MINIMUM       1989-10-11 1988-10-17 1990-05-16 1990-08-15 1990-07-12
 10TH PERCENTILE            0.005      0.005       330.        23.      0.003
 MEDIAN                     0.011      0.020      1100.       115.      0.005
 90TH PERCENTILE            0.026      0.035      3300.       532.      0.005
 MAXIMUM                    0.050      0.041     24000.      3300.      0.005
 DATE OF MAXIMUM       1988-04-13 1990-01-17 1988-09-12 1989-03-15 1990-04-12
 STANDARD DEVIATION         0.011      0.012      2915.       572.      0.001




                               Ba         Pb       INST
                            TOTAL      TOTAL     DISCHG
                            80011      82002      97160
                          ug/L Hg    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       16         16          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        0          0        156
 MEAN                       0.500      0.010       27.6
 MINIMUM                    0.500      0.010        7.7
 DATE OF MINIMUM       1988-01-12 1988-01-12 1988-10-03
 10TH PERCENTILE            0.500      0.010        9.9
 MEDIAN                     0.500      0.010       16.5
 90TH PERCENTILE            0.500      0.010       59.6
 MAXIMUM                    0.500      0.010      155.4
 DATE OF MAXIMUM       1990-10-03 1990-10-03 1990-04-23
 STANDARD DEVIATION         0.000      0.000       28.3





 STATION - URAWA PURIFICATION PLANT                 STATION NO. 080002
 COUNTRY - JAPAN                                    DEPTH(M)     236.5
 LOCATION - OCT. 2  LAT. 35/51/20  LONG. 139/39/40  ELEVATION(M) -17.1
 REGIONAL CENTRE - WPRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-12 TO 1990-12-18

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN      NO2-N      NO3-N
                             COND                                            
                            02041      02061      06606      07207      07313
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          7         36          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          0          0         36
 MEAN                        118.       16.3      0.010       0.01       0.47
 MINIMUM                     102.       16.0      0.010       0.01       0.23
 DATE OF MINIMUM       1989-11-07 1988-02-01 1988-01-12 1988-01-12 1988-11-24
 10TH PERCENTILE             112.       16.1                  0.01       0.26
 MEDIAN                      118.       16.2      0.010       0.01       0.49
 90TH PERCENTILE             125.       16.5                  0.01       0.63
 MAXIMUM                     128.       16.8      0.010       0.01       0.66
 DATE OF MAXIMUM       1988-09-28 1988-08-23 1990-12-18 1990-12-18 1990-05-16
 STANDARD DEVIATION            6.        0.2      0.000       0.00       0.14




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07551      08101      09110      10102      10301
                           mg/L N    mg/L O2     mg/L F       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES       35          0         34          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         36          2         35         36
 MEAN                        0.02        5.7        0.1      52.69        7.5
 MINIMUM                     0.02        3.7        0.0      49.00        7.3
 DATE OF MINIMUM       1988-01-12 1988-11-24 1990-01-25 1988-02-01 1988-02-01
 10TH PERCENTILE             0.02        4.6        0.0      49.20        7.3
 MEDIAN                      0.02        6.0        0.1      50.80        7.4
 90TH PERCENTILE             0.02        6.9        0.1      57.50        7.5
 MAXIMUM                     0.02        7.1        0.1      59.90        7.8
 DATE OF MAXIMUM       1990-12-18 1990-01-25 1989-12-14 1990-09-17 1988-04-18
 STANDARD DEVIATION          0.00        1.0        0.0       3.47        0.1




                               Na         Mg         Cl       PCBS          K
                             DISS       DISS       DISS                  DISS
                            11105      12103      17204      18165      19105
                          mg/L Na    mg/L Mg    mg/L Cl       ug/L     mg/L K


 NO. OF L-FLAGGED VALUES        0          0          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         36          0         36
 MEAN                         12.         3.         4.      0.500        1.0
 MINIMUM                      10.         2.         2.      0.500        0.9
 DATE OF MINIMUM       1990-03-06 1988-07-21 1990-07-10 1988-02-01 1988-03-07
 10TH PERCENTILE              10.         2.         3.                   0.9
 MEDIAN                       11.         3.         4.      0.500        1.0
 90TH PERCENTILE              12.         3.         4.                   1.2
 MAXIMUM                      14.         4.         6.      0.500        1.2
 DATE OF MAXIMUM       1990-08-20 1989-10-23 1988-09-28 1989-09-11 1990-08-20
 STANDARD DEVIATION            1.         0.         1.      0.000        0.1




                               Ca         Mn         Fe         Cu         Zn
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            20101      25004      26002      29006      30004
                          mg/L Ca    mg/L Mn    mg/L Fe    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES        0         36         32          9          9
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36          0          4          0          0
 MEAN                      10.103       0.01       0.01      0.010      0.005
 MINIMUM                    8.800       0.01       0.01      0.010      0.005
 DATE OF MINIMUM       1990-01-25 1988-01-12 1988-01-12 1988-01-12 1988-01-12
 10TH PERCENTILE            8.960       0.01       0.01                      
 MEDIAN                     9.950       0.01       0.01      0.010      0.005
 90TH PERCENTILE           11.320       0.01       0.01                      
 MAXIMUM                   12.500       0.01       0.03      0.010      0.005
 DATE OF MAXIMUM       1990-09-17 1990-12-18 1990-04-18 1990-12-18 1990-12-18
 STANDARD DEVIATION         0.949       0.00       0.00      0.000      0.000




                               As   FAEC COL         Cd         Ba         Pb
                            TOTAL                 TOTAL      TOTAL      TOTAL
                            33003      36011      48002      80011      82002
                          mg/L As   No/100ml    mg/L Cd    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        7          0         13         13         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         36          0          0          1
 MEAN                       0.005         0.      0.005      0.500      0.010
 MINIMUM                    0.005         0.      0.005      0.500      0.010
 DATE OF MINIMUM       1988-01-12 1988-01-12 1988-01-12 1988-01-12 1988-01-12
 10TH PERCENTILE                          0.      0.005      0.500      0.010
 MEDIAN                     0.005         0.      0.005      0.500      0.010
 90TH PERCENTILE                          0.      0.005      0.500      0.010
 MAXIMUM                    0.005         0.      0.005      0.500      0.010
 DATE OF MAXIMUM       1990-12-18 1990-12-18 1990-12-18 1990-12-18 1990-12-18
 STANDARD DEVIATION         0.000         0.      0.000      0.000      0.000




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       36
 MEAN                         0.0
 MINIMUM                      0.0
 DATE OF MINIMUM       1990-01-25
 10TH PERCENTILE              0.0
 MEDIAN                       0.0
 90TH PERCENTILE              0.0
 MAXIMUM                      0.0
 DATE OF MAXIMUM       1988-06-30
 STANDARD DEVIATION           0.0





 STATION - TONE RIVER AT TONE-OZEKI                 STATION NO. 080003
 COUNTRY - JAPAN                                    DEPTH(M)       2.1
 LOCATION - OCT. 2  LAT. 36/10/50  LONG. 139/28/30  ELEVATION(M)  22.4
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-19 TO 1990-12-04

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN     N KJEL      NO2-N
                             COND                                            
                            02041      02061      06606      07001      07207
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         12          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          0         36          1
 MEAN                        230.       13.9      0.005        2.6       0.06
 MINIMUM                     136.        4.8      0.005        1.0           
 DATE OF MINIMUM       1989-04-18 1988-01-19 1988-02-16 1990-06-19           
 10TH PERCENTILE             154.        5.4      0.005        1.4           
 MEDIAN                      238.       13.3      0.005        2.7           
 90TH PERCENTILE             285.       23.1      0.005        3.7           
 MAXIMUM                     320.       26.2      0.005        4.7           
 DATE OF MAXIMUM       1990-02-14 1990-08-21 1990-12-04 1990-12-04           
 STANDARD DEVIATION           50.        6.5      0.000        1.0           




                            NO3-N        NH3        NH3         O2        BOD
                                                              DISS           
                            07313      07551      07556      08101      08201
                           mg/L N     mg/L N     mg/L N    mg/L O2    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        1         15         21         14         36
 MEAN                        1.40       0.27       0.20        9.8         1.
 MINIMUM                                0.05       0.03        7.3         1.
 DATE OF MINIMUM                  1989-08-15 1990-08-21 1989-08-15 1989-10-24
 10TH PERCENTILE                        0.06       0.05        7.3         1.
 MEDIAN                                 0.22       0.16        9.7         1.
 90TH PERCENTILE                        0.48       0.39       12.1         2.
 MAXIMUM                                0.70       0.44       12.9         4.
 DATE OF MAXIMUM                  1990-02-14 1988-02-16 1988-02-16 1988-05-24
 STANDARD DEVIATION                     0.19       0.12        1.9         1.




                                F        ALK         pH         pH   SUSP SOL
                             DISS      TOTAL                          105 DEG
                            09104      10102      10301      10302      10401
                           mg/L F       mg/L   pH UNITS   pH UNITS       mg/L


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         36         15         21         36
 MEAN                         0.1      30.39        7.1        7.1        24.
 MINIMUM                      0.1      18.00        7.0        6.9         2.
 DATE OF MINIMUM       1988-08-16 1989-04-18 1989-04-18 1990-07-17 1990-04-17
 10TH PERCENTILE              0.1      20.30        7.0        7.0         3.
 MEDIAN                       0.2      29.50        7.1        7.1         6.
 90TH PERCENTILE              0.2      38.15        7.2        7.3        42.
 MAXIMUM                      0.2      48.50        7.3        7.5       200.
 DATE OF MAXIMUM       1988-02-16 1990-09-19 1990-03-13 1990-08-21 1988-08-16
 STANDARD DEVIATION           0.0       6.70        0.1        0.1        43.




                          P ORTHO   SULPHATE         Cl         Cr         Mn
                            TOTAL                  DISS      TOTAL      TOTAL
                            15205      16306      17204      24002      25004
                           mg/L P   mg/L SO4    mg/L Cl    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0         12          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         12         36          0         36
 MEAN                       0.043        40.        17.      0.003       0.08
 MINIMUM                    0.016        28.         4.      0.003       0.02
 DATE OF MINIMUM       1988-05-24 1990-06-19 1990-04-17 1988-02-16 1990-08-21
 10TH PERCENTILE            0.026        29.         9.      0.003       0.03
 MEDIAN                     0.039        40.        17.      0.003       0.06
 90TH PERCENTILE            0.063        52.        24.      0.003       0.12
 MAXIMUM                    0.100        58.        31.      0.003       0.33
 DATE OF MAXIMUM       1990-09-19 1990-02-14 1990-02-14 1990-12-04 1988-11-15
 STANDARD DEVIATION         0.017         9.         6.      0.000       0.07




                               Mn         Fe         Fe         Fe         Cu
                             DISS      TOTAL      TOTAL       DISS      TOTAL
                            25104      26002      26004      26104      29006
                          mg/L Mn    mg/L Fe    mg/L Fe    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES        3          0          0          5         11
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9         35          1          7          1
 MEAN                        0.04       0.76       1.20       0.02      0.011
 MINIMUM                     0.01       0.11                  0.01      0.010
 DATE OF MINIMUM       1988-06-14 1988-11-15            1988-02-16 1988-02-16
 10TH PERCENTILE             0.01       0.19                  0.01      0.010
 MEDIAN                      0.04       0.33                  0.01      0.010
 90TH PERCENTILE             0.07       1.35                  0.03      0.010
 MAXIMUM                     0.08       6.20                  0.13      0.020
 DATE OF MAXIMUM       1990-02-14 1988-08-16            1988-08-16 1988-08-16
 STANDARD DEVIATION          0.03       1.14                  0.03      0.003




                               Zn         As         As   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL      TOTAL           
                            30004      33003      33007      36001      36011
                          mg/L Zn    mg/L As    mg/L As   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        1         11          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          0          0         36         36
 MEAN                       0.012      0.001      0.001    3.4E+04    5.9E+03
 MINIMUM                    0.005      0.001               3.3E+02    4.9E+01
 DATE OF MINIMUM       1990-06-19 1988-02-16            1988-02-16 1988-02-16
 10TH PERCENTILE            0.005      0.001               1.5E+03    2.4E+02
 MEDIAN                     0.009      0.001               7.9E+03    5.2E+02
 90TH PERCENTILE            0.015      0.001               5.8E+04    7.9E+03
 MAXIMUM                    0.042      0.001               3.5E+05    1.3E+05
 DATE OF MAXIMUM       1988-08-16 1990-12-04            1989-09-12 1988-08-16
 STANDARD DEVIATION         0.010      0.000               7.8E+04    2.2E+04



                               Cd         Ba         Pb       INST
                            TOTAL      TOTAL      TOTAL     DISCHG
                            48002      80011      82002      97160
                          mg/L Cd    ug/L Hg    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       12         12         12          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0         36
 MEAN                       0.005      0.500      0.010      231.5
 MINIMUM                    0.005      0.500      0.010       70.0
 DATE OF MINIMUM       1988-02-16 1988-02-16 1988-02-16 1988-02-16
 10TH PERCENTILE            0.005      0.500      0.010       90.4
 MEDIAN                     0.005      0.500      0.010      175.0
 90TH PERCENTILE            0.005      0.500      0.010      438.0
 MAXIMUM                    0.005      0.500      0.010      710.0
 DATE OF MAXIMUM       1990-12-04 1990-12-04 1990-12-04 1988-09-12
 STANDARD DEVIATION         0.000      0.000      0.000      155.5





 STATION - SUGINAMI FILTRATION PLANT                STATION NO. 080004
 COUNTRY - JAPAN                                    DEPTH(M)      14.0
 LOCATION - OCT. 2  LAT. 35/43/30  LONG. 139/35/30  ELEVATION(M)  42.6
 REGIONAL CENTRE - WPRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-02-03 TO 1990-11-07

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN      NO3-N        NH3
                             COND                                            
                            02041      02061      06606      07313      07551
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         10          0          5
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         12          0         12          0
 MEAN                        263.       15.8      0.005      10.23       0.02
 MINIMUM                     251.       15.0      0.005       8.40       0.02
 DATE OF MINIMUM       1990-05-09 1988-05-25 1988-02-03 1988-08-03 1989-02-08
 10TH PERCENTILE             252.       15.1      0.005       8.42           
 MEDIAN                      264.       15.8      0.005      10.50       0.02
 90TH PERCENTILE             268.       16.3      0.005      11.70           
 MAXIMUM                     273.       16.4      0.005      12.00       0.02
 DATE OF MAXIMUM       1989-02-08 1990-11-07 1990-11-07 1990-08-08 1990-02-07
 STANDARD DEVIATION            6.        0.4      0.000       1.29       0.00




                              NH3         O2        BOD          F        ALK
                                        DISS                  DISS      TOTAL
                            07556      08101      08201      09104      10101
                           mg/L N    mg/L O2    mg/L O2     mg/L F       mg/L


 NO. OF L-FLAGGED VALUES        7          0          1         12          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         12          7          0          1
 MEAN                        0.02        7.6         1.        0.0      41.50
 MINIMUM                     0.02        6.7         0.        0.0           
 DATE OF MINIMUM       1988-02-03 1990-08-08 1988-08-03 1988-05-25           
 10TH PERCENTILE                         6.8                   0.0           
 MEDIAN                      0.02        7.6         1.        0.0           
 90TH PERCENTILE                         8.1                   0.1           
 MAXIMUM                     0.02        8.3         1.        0.1           
 DATE OF MAXIMUM       1990-11-07 1990-02-07 1988-11-09 1988-08-03           
 STANDARD DEVIATION          0.00        0.5         0.        0.0           




                              ALK         pH         pH         Mg    P ORTHO
                            TOTAL                             DISS      TOTAL
                            10102      10301      10302      12103      15205
                             mg/L   pH UNITS   pH UNITS    mg/L Mg     mg/L P


 NO. OF L-FLAGGED VALUES        0          0          0          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          5          7         12         11
 MEAN                       40.55        6.1        6.0        10.      0.023
 MINIMUM                    38.00        6.0        6.0         9.      0.003
 DATE OF MINIMUM       1990-02-07 1989-02-08 1988-02-03 1990-02-07 1989-08-16
 10TH PERCENTILE            38.10                               9.      0.004
 MEDIAN                     40.50        6.1        6.0        10.      0.009
 90TH PERCENTILE            42.40                              11.      0.070
 MAXIMUM                    44.00        6.1        6.2        11.      0.070
 DATE OF MAXIMUM       1988-08-03 1990-02-07 1990-05-09 1990-08-08 1988-11-09
 STANDARD DEVIATION          1.74        0.1        0.1         1.      0.028



                         SULPHATE         Cl         Ca         Cr         Mn
                                        DISS       DISS      TOTAL      TOTAL
                            16306      17204      20101      24002      25004
                         mg/L SO4    mg/L Cl    mg/L Ca    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0         12         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         12         12          0          0
 MEAN                         11.        20.     18.817      0.003       0.01
 MINIMUM                       8.        17.     17.600      0.003       0.01
 DATE OF MINIMUM       1989-05-10 1988-05-25 1990-05-09 1988-02-03 1988-02-03
 10TH PERCENTILE               8.        17.     17.680      0.003       0.01
 MEDIAN                       10.        20.     18.800      0.003       0.01
 90TH PERCENTILE              13.        23.     20.040      0.003       0.01
 MAXIMUM                      15.        23.     20.400      0.003       0.01
 DATE OF MAXIMUM       1990-08-08 1989-11-01 1990-02-07 1990-11-07 1990-11-07
 STANDARD DEVIATION            2.         2.      0.888      0.000       0.00




                               Fe         Cu         Zn         As         Cd
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            26002      29006      30004      33003      48002
                          mg/L Fe    mg/L Cu    mg/L Zn    mg/L As    mg/L Cd


 NO. OF L-FLAGGED VALUES       12         12          0         12         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0         12          0          0
 MEAN                        0.01      0.010      0.009      0.001      0.005
 MINIMUM                     0.01      0.010      0.005      0.001      0.005
 DATE OF MINIMUM       1988-02-03 1988-02-03 1990-02-07 1988-02-03 1988-02-03
 10TH PERCENTILE             0.01      0.010      0.005      0.001      0.005
 MEDIAN                      0.01      0.010      0.008      0.001      0.005
 90TH PERCENTILE             0.01      0.010      0.014      0.001      0.005
 MAXIMUM                     0.01      0.010      0.017      0.001      0.005
 DATE OF MAXIMUM       1990-11-07 1990-11-07 1988-08-03 1990-11-07 1990-11-07
 STANDARD DEVIATION          0.00      0.000      0.004      0.000      0.000




                               Ba         Pb
                            TOTAL      TOTAL
                            80011      82002
                          ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES       12         12
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        0          0
 MEAN                       0.500      0.010
 MINIMUM                    0.500      0.010
 DATE OF MINIMUM       1988-02-03 1988-02-03
 10TH PERCENTILE            0.500      0.010
 MEDIAN                     0.500      0.010
 90TH PERCENTILE            0.500      0.010
 MAXIMUM                    0.500      0.010
 DATE OF MAXIMUM       1990-11-07 1990-11-07
 STANDARD DEVIATION         0.000      0.000





 STATION - OKUSAGAMI RESERVOIR AT INTAKE            STATION NO. 080005
 COUNTRY - JAPAN                                    DEPTH(M)      10.0
 LOCATION - OCT. 2  LAT. 35/32/45  LONG. 139/08/27  ELEVATION(M) 314.0
 REGIONAL CENTRE - WPRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-18 TO 1990-12-17

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP      TRANS    PHENOLS         CN
                             COND                                            
                            02041      02061      02076      06532      06606
                            us/cm      deg C          m       mg/L    mg/L Cn


 NO. OF L-FLAGGED VALUES        0          0          0          6          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         36          0          0
 MEAN                         89.       12.5        4.0      0.001      0.005
 MINIMUM                      74.        4.4        0.5      0.001      0.005
 DATE OF MINIMUM       1989-03-06 1988-02-15 1990-02-19 1988-04-18 1988-04-18
 10TH PERCENTILE              79.        5.5        1.8                      
 MEDIAN                       88.       12.9        3.2      0.001      0.005
 90TH PERCENTILE              98.       18.9        7.2                      
 MAXIMUM                     103.       22.9       10.0      0.001      0.005
 DATE OF MAXIMUM       1988-02-15 1990-07-16 1990-11-26 1990-10-15 1990-10-15
 STANDARD DEVIATION            8.        5.2        2.3      0.000      0.000




                            NO2-N      NO3-N        NH3    PERCENT         O2
                                                            DO SAT       DISS
                            07207      07313      07551      08001      08101
                           mg/L N     mg/L N     mg/L N    PERCENT    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0         11          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         25         36         36
 MEAN                        0.00       0.51       0.02       101.       10.1
 MINIMUM                     0.00       0.26       0.01        83.        8.2
 DATE OF MINIMUM       1988-10-17 1988-09-19 1988-08-15 1988-12-05 1990-07-16
 10TH PERCENTILE             0.00       0.41       0.01        96.        8.6
 MEDIAN                      0.00       0.52       0.02       101.       10.0
 90TH PERCENTILE             0.00       0.59       0.03       104.       11.5
 MAXIMUM                     0.00       0.67       0.05       114.       12.2
 DATE OF MAXIMUM       1988-03-14 1989-03-06 1988-03-14 1989-04-18 1990-01-22
 STANDARD DEVIATION          0.00       0.09       0.01         5.        1.1




                              BOD     PERM V          F        ALK         pH
                                                   DISS      TOTAL           
                            08201      08401      09105      10102      10300
                          mg/L O2    mg/L O2     mg/L F       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          6         36         36
 MEAN                          0.         1.        0.0      31.44        7.4
 MINIMUM                       0.         0.        0.0      23.00        7.3
 DATE OF MINIMUM       1988-03-14 1989-12-04 1990-04-16 1989-03-06 1988-02-15
 10TH PERCENTILE               0.         0.                 27.60        7.3
 MEDIAN                        0.         0.        0.0      32.00        7.4
 90TH PERCENTILE               1.         1.                 34.30        7.4
 MAXIMUM                       1.         1.        0.1      35.00        7.6
 DATE OF MAXIMUM       1990-10-15 1988-06-20 1989-04-18 1990-02-19 1989-09-18
 STANDARD DEVIATION            0.         0.        0.0       2.84        0.1



                             TENS         Mg         Si    P ORTHO          P
                          ANIONIC       DISS   REACTIVE      TOTAL      TOTAL
                            10702      12103      14101      15205      15405
                             mg/L    mg/L Mg   mg/LSiO2     mg/L P     mg/L P


 NO. OF L-FLAGGED VALUES       17          0          0          2          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       19         36         34         34         17
 MEAN                         0.0         3.      17.97      0.008      0.015
 MINIMUM                      0.0         2.      13.00      0.003      0.010
 DATE OF MINIMUM       1988-04-18 1988-04-18 1990-08-20 1988-04-18 1988-01-18
 10TH PERCENTILE              0.0         2.      15.40      0.003      0.010
 MEDIAN                       0.0         3.      18.00      0.007      0.010
 90TH PERCENTILE              0.0         3.      19.00      0.014      0.025
 MAXIMUM                      0.0         4.      21.00      0.029      0.050
 DATE OF MAXIMUM       1988-03-14 1990-10-15 1990-10-15 1988-02-15 1990-01-22
 STANDARD DEVIATION           0.0         0.       1.62      0.006      0.011




                         SULPHATE         Cl     ALDRIN   DIELDRIN       PCBS
                                        DISS                                 
                            16306      17204      18130      18150      18165
                         mg/L SO4    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          2          2         29
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          0          0          0
 MEAN                          7.         2.      0.001      0.001      0.100
 MINIMUM                       2.         1.                            0.100
 DATE OF MINIMUM       1990-02-19 1989-04-18                       1988-01-18
 10TH PERCENTILE               3.         1.                            0.100
 MEDIAN                        7.         2.                            0.100
 90TH PERCENTILE               9.         2.                            0.100
 MAXIMUM                      12.         3.                            0.100
 DATE OF MAXIMUM       1988-03-14 1988-03-14                       1990-10-15
 STANDARD DEVIATION            2.         0.                            0.000




                               Ca         Cr         Mn         Mn         Fe
                             DISS      TOTAL      TOTAL       DISS      TOTAL
                            20101      24002      25004      25104      26004
                          mg/L Ca    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          6          6         16          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36          0         30         20         36
 MEAN                       9.872      0.010       0.01       0.01       0.16
 MINIMUM                    7.600      0.010       0.01       0.01       0.02
 DATE OF MINIMUM       1990-03-05 1988-04-18 1988-01-18 1988-01-18 1990-07-16
 10TH PERCENTILE            8.400                  0.01       0.01       0.04
 MEDIAN                    10.000      0.010       0.01       0.01       0.11
 90TH PERCENTILE           12.000                  0.02       0.01       0.36
 MAXIMUM                   12.000      0.010       0.03       0.02       0.70
 DATE OF MAXIMUM       1988-06-20 1990-10-15 1990-02-19 1988-06-20 1990-02-19
 STANDARD DEVIATION         1.233      0.000       0.01       0.00       0.15



                               Fe         Cu         Zn         As         Se
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            26104      29006      30004      33003      34002
                          mg/L Fe    mg/L Cu    mg/L Zn    mg/L As    mg/L Se


 NO. OF L-FLAGGED VALUES        1          6          6          6          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          0          0          0          0
 MEAN                        0.02      0.010      0.008      0.010      0.001
 MINIMUM                     0.01      0.010      0.001      0.010      0.001
 DATE OF MINIMUM       1988-10-17 1988-04-18 1990-10-15 1988-04-18 1988-04-18
 10TH PERCENTILE                                                             
 MEDIAN                      0.01      0.010      0.010      0.010      0.001
 90TH PERCENTILE                                                             
 MAXIMUM                     0.04      0.010      0.010      0.010      0.001
 DATE OF MAXIMUM       1989-04-18 1990-10-15 1990-04-16 1990-10-15 1990-10-15
 STANDARD DEVIATION          0.01      0.000      0.004      0.000      0.000




                         COLIFORM   FAEC COL       FAEC         Cd         Ba
                            TOTAL                 STREP      TOTAL      TOTAL
                            36001      36011      36101      48001      80011
                         No/100ml   No/100ml   No/100ml    mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES        0          0          0         36         36
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35         36         36          0          0
 MEAN                       1648.       117.        76.      0.001      0.100
 MINIMUM                     130.        17.         2.      0.001      0.100
 DATE OF MINIMUM       1988-02-15 1988-01-18 1988-01-18 1988-01-18 1988-01-18
 10TH PERCENTILE             170.        23.         2.      0.001      0.100
 MEDIAN                     1100.        79.        22.      0.001      0.100
 90TH PERCENTILE            3400.       267.       191.      0.001      0.100
 MAXIMUM                   13000.       490.       790.      0.001      0.100
 DATE OF MAXIMUM       1988-08-15 1989-07-17 1989-09-18 1990-12-17 1990-12-17
 STANDARD DEVIATION         2346.       108.       149.      0.000      0.000




                               Pb
                            TOTAL
                            82002
                          mg/L Pb


 NO. OF L-FLAGGED VALUES       36
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        0
 MEAN                       0.010
 MINIMUM                    0.010
 DATE OF MINIMUM       1988-01-18
 10TH PERCENTILE            0.010
 MEDIAN                     0.010
 90TH PERCENTILE            0.010
 MAXIMUM                    0.011
 DATE OF MAXIMUM       1989-08-14
 STANDARD DEVIATION         0.000





 STATION - SAGAMI RESERVOIR AT INTAKE               STATION NO. 080006
 COUNTRY - JAPAN                                    DEPTH(M)      19.4
 LOCATION - OCT. 2  LAT. 35/36/49  LONG. 139/12/00  ELEVATION(M) 167.0
 REGIONAL CENTRE - WPRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-11 TO 1990-12-10

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP      TRANS    PHENOLS         CN
                             COND                                            
                            02041      02061      02076      06532      06606
                            us/cm      deg C          m       mg/L    mg/L Cn


 NO. OF L-FLAGGED VALUES        0          0          0          6          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         36          0          0
 MEAN                        139.       15.3        1.8      0.001      0.005
 MINIMUM                     110.        6.9        0.3      0.001      0.005
 DATE OF MINIMUM       1989-08-07 1990-01-16 1989-08-07 1988-04-11 1988-04-11
 10TH PERCENTILE             118.        7.4        0.7                      
 MEDIAN                      138.       15.5        1.7      0.001      0.005
 90TH PERCENTILE             161.       23.0        2.7                      
 MAXIMUM                     167.       27.4        3.5      0.001      0.005
 DATE OF MAXIMUM       1990-02-13 1988-08-08 1988-04-11 1990-10-09 1990-10-09
 STANDARD DEVIATION           16.        6.1        0.7      0.000      0.000




                            NO2-N      NO3-N        NH3    PERCENT         O2
                                                            DO SAT       DISS
                            07207      07313      07551      08001      08101
                           mg/L N     mg/L N     mg/L N    PERCENT    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          2          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         34         36         36
 MEAN                        0.02       1.00       0.03       111.       10.5
 MINIMUM                     0.01       0.44       0.01        76.        7.8
 DATE OF MINIMUM       1989-08-07 1988-08-08 1989-10-09 1988-02-08 1990-08-13
 10TH PERCENTILE             0.01       0.67       0.01        82.        8.9
 MEDIAN                      0.02       1.08       0.03        96.       10.1
 90TH PERCENTILE             0.03       1.28       0.06       157.       12.6
 MAXIMUM                     0.03       1.39       0.08       206.       15.9
 DATE OF MAXIMUM       1990-07-09 1988-12-12 1989-02-06 1988-08-08 1988-08-08
 STANDARD DEVIATION          0.01       0.25       0.02        31.        1.8




                              BOD     PERM V          F        ALK         pH
                                                   DISS      TOTAL           
                            08201      08401      09105      10102      10300
                          mg/L O2    mg/L O2     mg/L F       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          6         36         36
 MEAN                          2.         1.        0.1      43.86        7.8
 MINIMUM                       0.         0.        0.1      29.00        7.2
 DATE OF MINIMUM       1988-04-11 1989-12-11 1988-10-11 1990-08-13 1988-01-11
 10TH PERCENTILE               0.         1.                 37.00        7.2
 MEDIAN                        1.         1.        0.1      43.00        7.4
 90TH PERCENTILE               4.         2.                 51.00        9.0
 MAXIMUM                       7.         4.        0.1      55.00        9.9
 DATE OF MAXIMUM       1990-09-10 1990-09-10 1988-04-11 1990-07-09 1988-08-08
 STANDARD DEVIATION            2.         1.        0.0       5.90        0.7



                             TENS         Mg         Si    P ORTHO          P
                          ANIONIC       DISS   REACTIVE      TOTAL      TOTAL
                            10702      12103      14101      15205      15405
                             mg/L    mg/L Mg   mg/LSiO2     mg/L P     mg/L P


 NO. OF L-FLAGGED VALUES        2          0          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         36         36         35         24
 MEAN                         0.0         5.      23.69      0.049      0.128
 MINIMUM                      0.0         3.      16.00      0.003      0.040
 DATE OF MINIMUM       1988-11-07 1988-08-08 1989-09-11 1988-07-11 1988-10-11
 10TH PERCENTILE              0.0         4.      20.00      0.003      0.044
 MEDIAN                       0.0         5.      23.50      0.042      0.100
 90TH PERCENTILE              0.0         6.      27.30      0.097      0.280
 MAXIMUM                      0.1         8.      31.00      0.124      0.380
 DATE OF MAXIMUM       1988-08-08 1988-07-11 1989-01-09 1988-02-08 1990-02-13
 STANDARD DEVIATION           0.0         1.       3.18      0.035      0.095




                         SULPHATE         Cl     ALDRIN   DIELDRIN       PCBS
                                        DISS                                 
                            16306      17204      18130      18150      18165
                         mg/L SO4    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          2          2         29
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          0          0          0
 MEAN                         13.         5.      0.001      0.001      0.100
 MINIMUM                       7.         3.                            0.100
 DATE OF MINIMUM       1990-02-13 1989-09-11                       1988-01-11
 10TH PERCENTILE              10.         3.                            0.100
 MEDIAN                       13.         4.                            0.100
 90TH PERCENTILE              16.         6.                            0.100
 MAXIMUM                      17.         8.                            0.100
 DATE OF MAXIMUM       1989-02-06 1988-03-07                       1990-10-09
 STANDARD DEVIATION            2.         1.                            0.000




                               Ca         Cr         Mn         Mn         Fe
                             DISS      TOTAL      TOTAL       DISS      TOTAL
                            20101      24002      25004      25104      26004
                          mg/L Ca    mg/L Cr    mg/L Mn    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          6          0         18          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36          0         36         18         36
 MEAN                      12.831      0.010       0.03       0.02       0.34
 MINIMUM                    6.000      0.010       0.01       0.01       0.04
 DATE OF MINIMUM       1988-07-11 1988-04-11 1988-06-13 1988-04-11 1988-07-11
 10TH PERCENTILE            9.840                  0.01       0.01       0.07
 MEDIAN                    13.000      0.010       0.02       0.01       0.13
 90TH PERCENTILE           15.000                  0.04       0.03       0.32
 MAXIMUM                   17.000      0.010       0.13       0.04       4.70
 DATE OF MAXIMUM       1988-03-07 1990-10-09 1990-08-13 1988-02-08 1990-08-13
 STANDARD DEVIATION         2.146      0.000       0.02       0.01       0.81




                               Fe         Cu         Zn         As         Se
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            26104      29006      30004      33003      34002
                          mg/L Fe    mg/L Cu    mg/L Zn    mg/L As    mg/L Se


 NO. OF L-FLAGGED VALUES        2          6          5          6          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          0          1          0          0
 MEAN                        0.04      0.010      0.010      0.010      0.001
 MINIMUM                     0.01      0.010      0.010      0.010      0.001
 DATE OF MINIMUM       1989-10-09 1988-04-11 1988-04-11 1988-04-11 1988-04-11
 10TH PERCENTILE                                                             
 MEDIAN                      0.02      0.010      0.010      0.010      0.001
 90TH PERCENTILE                                                             
 MAXIMUM                     0.12      0.010      0.010      0.010      0.001
 DATE OF MAXIMUM       1990-10-09 1990-10-09 1990-10-09 1990-10-09 1990-10-09
 STANDARD DEVIATION          0.04      0.000      0.000      0.000      0.000




                         COLIFORM   FAEC COL       FAEC         Cd         Ba
                            TOTAL                 STREP      TOTAL      TOTAL
                            36001      36011      36101      48001      80011
                         No/100ml   No/100ml   No/100ml    mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES        0          0          1         35         36
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         35          1          0
 MEAN                       3991.       145.        86.      0.001      0.100
 MINIMUM                     220.         8.         0.      0.001      0.100
 DATE OF MINIMUM       1988-08-08 1990-06-11 1988-11-07 1988-01-11 1988-01-11
 10TH PERCENTILE             232.        33.         1.      0.001      0.100
 MEDIAN                     2300.        86.        17.      0.001      0.100
 90TH PERCENTILE            7270.       240.       110.      0.001      0.100
 MAXIMUM                   24000.       790.      1300.      0.001      0.100
 DATE OF MAXIMUM       1990-05-14 1990-09-10 1990-08-13 1990-12-10 1990-12-10
 STANDARD DEVIATION         6204.       171.       248.      0.000      0.000




                               Pb
                            TOTAL
                            82002
                          mg/L Pb


 NO. OF L-FLAGGED VALUES       36
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        0
 MEAN                       0.010
 MINIMUM                    0.010
 DATE OF MINIMUM       1988-01-11
 10TH PERCENTILE            0.010
 MEDIAN                     0.010
 90TH PERCENTILE            0.010
 MAXIMUM                    0.010
 DATE OF MAXIMUM       1990-12-10
 STANDARD DEVIATION         0.000





 STATION - SAGAMI RIVER AT SAMUKAWA                 STATION NO. 080007
 COUNTRY - JAPAN                                    DEPTH(M)       3.0
 LOCATION - OCT. 2  LAT. 35/22/20  LONG. 139/22/30  ELEVATION(M)   5.0
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-06 TO 1990-12-19

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP        TOC    PHENOLS         CN
                             COND                                            
                            02041      02061      06001      06532      06606
                            us/cm      deg C     mg/L C       mg/L    mg/L Cn


 NO. OF L-FLAGGED VALUES        0          0          0         11         35
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72         12          0          0
 MEAN                        186.       14.5         1.      0.001      0.005
 MINIMUM                     124.        6.0         1.      0.001      0.005
 DATE OF MINIMUM       1989-09-06 1988-02-17 1988-01-20 1988-01-20 1988-01-20
 10TH PERCENTILE             146.        8.0         1.      0.001      0.005
 MEDIAN                      184.       14.4         1.      0.001      0.005
 90TH PERCENTILE             230.       20.8         2.      0.001      0.005
 MAXIMUM                     237.       26.0         3.      0.001      0.005
 DATE OF MAXIMUM       1988-03-09 1990-08-08 1988-04-20 1990-10-24 1990-12-19
 STANDARD DEVIATION           31.        5.2         1.      0.000      0.000




                            NO2-N      NO3-N        NH3    PERCENT         O2
                                                            DO SAT       DISS
                            07207      07313      07551      08001      08101
                           mg/L N     mg/L N     mg/L N    PERCENT    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       72         36         72         36         36
 MEAN                        0.04       1.97       0.24        91.        9.2
 MINIMUM                     0.01       1.20       0.04        75.        6.6
 DATE OF MINIMUM       1989-09-25 1989-09-25 1989-08-23 1988-06-23 1990-07-18
 10TH PERCENTILE             0.02       1.38       0.06        82.        7.7
 MEDIAN                      0.04       1.81       0.20        90.        9.2
 90TH PERCENTILE             0.06       2.81       0.49        99.       10.4
 MAXIMUM                     0.07       3.12       0.85       103.       11.4
 DATE OF MAXIMUM       1988-11-24 1989-02-22 1989-01-11 1989-05-17 1990-02-21
 STANDARD DEVIATION          0.02       0.54       0.18         7.        1.1




                              BOD     PERM V          F        ALK         pH
                                                   DISS      TOTAL           
                            08201      08401      09105      10102      10300
                          mg/L O2    mg/L O2     mg/L F       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35         72         12         72         72
 MEAN                          2.         1.        0.1      48.39        7.3
 MINIMUM                       0.         1.        0.1      33.00        7.2
 DATE OF MINIMUM       1989-09-25 1990-12-19 1988-04-20 1989-08-09 1988-12-07
 10TH PERCENTILE               1.         1.        0.1      38.20        7.3
 MEDIAN                        2.         1.        0.1      48.00        7.3
 90TH PERCENTILE               3.         2.        0.1      57.70        7.4
 MAXIMUM                       4.         3.        0.1      65.00        7.6
 DATE OF MAXIMUM       1989-02-22 1989-10-04 1990-07-18 1990-08-08 1989-05-02
 STANDARD DEVIATION            1.         0.        0.0       7.11        0.1




                         SUSP SOL   VOL SUSP       TENS         Mg         Si
                          105 DEG     SOLIDS    ANIONIC       DISS   REACTIVE
                            10401      10511      10702      12103      14101
                             mg/L       mg/L       mg/L    mg/L Mg   mg/LSiO2


 NO. OF L-FLAGGED VALUES        0          1          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         34         72         36          5
 MEAN                         12.         5.        0.1         6.      20.60
 MINIMUM                       3.         0.        0.0         3.      19.00
 DATE OF MINIMUM       1988-12-21 1988-11-24 1989-09-25 1989-06-21 1988-04-20
 10TH PERCENTILE               4.         1.        0.0         4.           
 MEDIAN                        8.         4.        0.1         5.      20.00
 90TH PERCENTILE              24.         9.        0.1         7.           
 MAXIMUM                      61.        12.        0.2        10.      23.00
 DATE OF MAXIMUM       1988-08-24 1988-03-24 1989-02-22 1988-08-24 1988-10-19
 STANDARD DEVIATION           13.         3.        0.0         1.       1.52




                          P ORTHO   SULPHATE         Cl     ALDRIN   DIELDRIN
                            TOTAL                  DISS                      
                            15205      16306      17204      18130      18150
                           mg/L P   mg/L SO4    mg/L Cl       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          0          2          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36          6         71          0          0
 MEAN                       0.073        18.        11.      0.002      0.003
 MINIMUM                    0.033        15.         7.                      
 DATE OF MINIMUM       1988-08-24 1988-10-19 1989-09-25                      
 10TH PERCENTILE            0.042                    8.                      
 MEDIAN                     0.065        18.        11.                      
 90TH PERCENTILE            0.114                   14.                      
 MAXIMUM                    0.137        25.        17.                      
 DATE OF MAXIMUM       1989-02-22 1989-04-19 1988-12-07                      
 STANDARD DEVIATION         0.027         4.         2.                      




                             PCBS         Ca         Cr         Mn         Fe
                                        DISS      TOTAL      TOTAL      TOTAL
                            18165      20101      24002      25004      26004
                             ug/L    mg/L Ca    mg/L Cr    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        6          0          9          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         37          0         36         36
 MEAN                       0.229     17.730      0.010       0.03       0.57
 MINIMUM                    0.100     13.000      0.010       0.01       0.11
 DATE OF MINIMUM       1988-01-20 1989-09-25 1988-01-20 1988-11-24 1988-11-24
 10TH PERCENTILE                      14.000                  0.01       0.14
 MEDIAN                     0.100     18.000      0.010       0.03       0.42
 90TH PERCENTILE                      20.300                  0.05       1.16
 MAXIMUM                    1.000     23.000      0.010       0.09       2.40
 DATE OF MAXIMUM       1990-10-24 1988-12-21 1990-10-24 1988-08-24 1990-02-21
 STANDARD DEVIATION         0.340      2.578      0.000       0.02       0.51




                               Cu         Zn         As         Se   COLIFORM
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            29006      30004      33003      34002      36001
                          mg/L Cu    mg/L Zn    mg/L As    mg/L Se   No/100ml


 NO. OF L-FLAGGED VALUES        8          8          9          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          0          1         71
 MEAN                       0.010      0.019      0.010      0.001    2.6E+04
 MINIMUM                    0.010      0.010      0.010      0.001    1.3E+03
 DATE OF MINIMUM       1988-01-20 1988-01-20 1988-01-20 1988-04-20 1989-08-23
 10TH PERCENTILE                                                      5.1E+03
 MEDIAN                     0.010      0.010      0.010      0.001    1.7E+04
 90TH PERCENTILE                                                      4.9E+04
 MAXIMUM                    0.010      0.090      0.010      0.001    1.1E+05
 DATE OF MAXIMUM       1990-10-24 1990-04-18 1990-10-24 1990-10-24 1990-08-22
 STANDARD DEVIATION         0.000      0.027      0.000      0.000    2.2E+04




                         FAEC COL       FAEC         Cd         Ba         Pb
                                       STREP      TOTAL      TOTAL      TOTAL
                            36011      36101      48001      80011      82002
                         No/100ml   No/100ml    mg/L Cd    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        0          0         36         36         35
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       37         36          0          0          1
 MEAN                     8.6E+03       510.      0.001      0.100      0.010
 MINIMUM                  4.9E+01        33.      0.001      0.100      0.010
 DATE OF MINIMUM       1988-11-24 1990-07-18 1988-01-20 1988-01-20 1988-01-20
 10TH PERCENTILE          1.5E+02        98.      0.001      0.100      0.010
 MEDIAN                   1.3E+03       230.      0.001      0.100      0.010
 90TH PERCENTILE          7.9E+03       835.      0.001      0.100      0.010
 MAXIMUM                  2.4E+05      3300.      0.001      0.100      0.010
 DATE OF MAXIMUM       1989-10-04 1990-11-21 1990-12-19 1990-12-19 1990-12-19
 STANDARD DEVIATION       3.9E+04       800.      0.000      0.000      0.000




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       72
 MEAN                        45.6
 MINIMUM                     14.1
 DATE OF MINIMUM       1988-02-17
 10TH PERCENTILE             15.9
 MEDIAN                      34.7
 90TH PERCENTILE             93.1
 MAXIMUM                    168.7
 DATE OF MAXIMUM       1989-09-06
 STANDARD DEVIATION          33.3





 STATION - SHINANO RIVER AT ZUIUN BRIDGE            STATION NO. 080008
 COUNTRY - JAPAN                                    DEPTH(M)       2.8
 LOCATION - OCT. 2  LAT. 37/35/56  LONG. 138/57/04  ELEVATION(M)   6.3
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-06 TO 1990-12-20

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN   CHLORO A      NO2-N
                             COND                                            
                            02041      02061      06606      06711      07207
                            us/cm      deg C    mg/L Cn       mg/L     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         72          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72          0         70         72
 MEAN                        130.       13.2      0.010     0.0071       0.01
 MINIMUM                      68.        1.5      0.010     0.0020       0.01
 DATE OF MINIMUM       1988-04-20 1988-02-03 1988-01-06 1988-10-05 1988-04-20
 10TH PERCENTILE             100.        4.0      0.010     0.0022       0.01
 MEDIAN                      132.       12.8      0.010     0.0050       0.01
 90TH PERCENTILE             157.       22.7      0.010     0.0120       0.02
 MAXIMUM                     180.       26.5      0.010     0.0580       0.02
 DATE OF MAXIMUM       1990-09-05 1990-08-01 1990-12-20 1990-08-01 1990-08-15
 STANDARD DEVIATION           23.        7.1      0.000     0.0074       0.00




                            NO3-N        NH3         O2        BOD          F
                                                   DISS                  DISS
                            07313      07556      08101      08201      09105
                           mg/L N     mg/L N    mg/L O2    mg/L O2     mg/L F


 NO. OF L-FLAGGED VALUES        0          5          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         67         72         67         72
 MEAN                        0.82       0.08       10.2         2.        0.1
 MINIMUM                     0.48       0.04        7.4         1.        0.0
 DATE OF MINIMUM       1988-04-20 1988-07-20 1990-08-15 1988-08-03 1988-04-20
 10TH PERCENTILE             0.58       0.04        7.8         1.        0.1
 MEDIAN                      0.81       0.08        9.9         1.        0.1
 90TH PERCENTILE             1.04       0.14       12.8         2.        0.1
 MAXIMUM                     1.33       0.19       13.4         3.        0.1
 DATE OF MAXIMUM       1990-10-03 1988-02-17 1988-02-17 1988-02-17 1990-07-18
 STANDARD DEVIATION          0.17       0.04        1.8         1.        0.0




                              ALK         pH   SUSP SOL         Si    P ORTHO
                            TOTAL               105 DEG   REACTIVE      TOTAL
                            10102      10302      10401      14101      15205
                             mg/L   pH UNITS       mg/L   mg/LSiO2     mg/L P


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72         72         72         72
 MEAN                       24.22        7.2        37.      15.18      0.052
 MINIMUM                    11.00        6.6         8.       9.80      0.025
 DATE OF MINIMUM       1988-04-20 1988-10-05 1990-11-08 1990-06-27 1990-01-10
 10TH PERCENTILE            18.10        7.0        12.      12.48      0.033
 MEDIAN                     24.50        7.2        20.      15.00      0.049
 90TH PERCENTILE            29.70        7.4        91.      17.80      0.076
 MAXIMUM                    34.50        7.8       171.      20.30      0.114
 DATE OF MAXIMUM       1990-09-05 1990-08-01 1989-09-20 1988-01-20 1990-06-27
 STANDARD DEVIATION          4.57        0.2        38.       2.16      0.018



                         SULPHATE         Cl        DDT     ALDRIN   DIELDRIN
                                        DISS      TOTAL                      
                            16302      17204      18002      18130      18150
                         mg/L SO4    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0         34         36         36
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72          0          0          0
 MEAN                         15.        10.      0.005      0.001      0.001
 MINIMUM                      10.         5.      0.005      0.001      0.001
 DATE OF MINIMUM       1988-04-06 1990-06-27 1988-01-20 1988-01-20 1988-01-20
 10TH PERCENTILE              12.         8.      0.005      0.001      0.001
 MEDIAN                       15.        10.      0.005      0.001      0.001
 90TH PERCENTILE              19.        13.      0.005      0.001      0.001
 MAXIMUM                      21.        16.      0.005      0.001      0.001
 DATE OF MAXIMUM       1990-11-08 1988-03-02 1990-11-21 1990-12-20 1990-12-20
 STANDARD DEVIATION            3.         2.      0.000      0.000      0.000




                             PCBS         Cr         Cr         Mn         Mn
                                       TOTAL       DISS      TOTAL       DISS
                            18165      24002      24052      25004      25104
                             ug/L    mg/L Cr    mg/L Cr    mg/L Mn    mg/L Mn


 NO. OF L-FLAGGED VALUES       36         66         72          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          6          0         71         71
 MEAN                       0.333      0.006      0.006       0.07       0.04
 MINIMUM                    0.300      0.003      0.003       0.01       0.02
 DATE OF MINIMUM       1988-07-06 1989-04-05 1989-04-05 1989-01-11 1989-08-16
 10TH PERCENTILE            0.300      0.003      0.003       0.04       0.02
 MEDIAN                     0.300      0.004      0.003       0.06       0.04
 90TH PERCENTILE            0.500      0.010      0.010       0.13       0.06
 MAXIMUM                    0.500      0.010      0.010       0.25       0.11
 DATE OF MAXIMUM       1988-06-08 1989-03-15 1989-03-15 1989-09-20 1988-02-17
 STANDARD DEVIATION         0.076      0.003      0.003       0.04       0.02




                               Fe         Fe         Cu         Cu         Zn
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            26004      26104      29006      29106      30004
                          mg/L Fe    mg/L Fe    mg/L Cu    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES        0          0         71         71          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72          1          1         69
 MEAN                        1.42       0.17      0.010      0.010      0.017
 MINIMUM                     0.41       0.06      0.010      0.010      0.005
 DATE OF MINIMUM       1990-07-18 1989-06-21 1988-01-06 1988-01-06 1990-06-13
 10TH PERCENTILE             0.68       0.11      0.010      0.010      0.007
 MEDIAN                      1.10       0.16      0.010      0.010      0.015
 90TH PERCENTILE             2.14       0.24      0.010      0.010      0.028
 MAXIMUM                     6.75       0.31      0.010      0.010      0.040
 DATE OF MAXIMUM       1989-09-20 1990-02-07 1990-12-20 1990-12-20 1989-09-20
 STANDARD DEVIATION          1.07       0.05      0.000      0.000      0.008



                               As         Se   FAEC COL         Cd         Cd
                            TOTAL      TOTAL                 TOTAL       DISS
                            33003      34002      36012      48001      48101
                          mg/L As    mg/L Se   No/100ml    mg/L Cd    mg/L Cd


 NO. OF L-FLAGGED VALUES       30         70          0         72         72
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       42          2         72          0          0
 MEAN                       0.001      0.002       310.      0.005      0.005
 MINIMUM                    0.001      0.002        20.      0.005      0.005
 DATE OF MINIMUM       1988-01-06 1988-01-06 1990-12-20 1988-01-06 1988-01-06
 10TH PERCENTILE            0.001      0.002        64.      0.005      0.005
 MEDIAN                     0.001      0.002       200.      0.005      0.005
 90TH PERCENTILE            0.002      0.002       810.      0.005      0.005
 MAXIMUM                    0.003      0.002      1100.      0.005      0.005
 DATE OF MAXIMUM       1988-06-08 1990-12-20 1990-06-27 1990-12-20 1990-12-20
 STANDARD DEVIATION         0.000      0.000       275.      0.000      0.000




                               Ba         Hg         Pb         Pb       INST
                            TOTAL       DISS      TOTAL       DISS     DISCHG
                            80011      80111      82001      82101      97160
                          ug/L Hg    ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       43         71         66         72          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          6          0         72
 MEAN                       0.207      0.323      0.011      0.011      219.1
 MINIMUM                    0.200      0.200      0.005      0.005      106.1
 DATE OF MINIMUM       1989-04-05 1989-04-05 1989-04-19 1989-04-05 1990-08-01
 10TH PERCENTILE            0.200      0.200      0.005      0.005      178.0
 MEDIAN                     0.200      0.200      0.005      0.005      214.2
 90TH PERCENTILE            0.200      0.500      0.020      0.020      281.1
 MAXIMUM                    0.500      0.500      0.020      0.020      336.0
 DATE OF MAXIMUM       1989-02-08 1989-03-15 1989-03-15 1989-03-15 1990-06-27
 STANDARD DEVIATION         0.046      0.149      0.007      0.007       41.6





 STATION - KISO RIVER AT SHIMO-OCHIAI               STATION NO. 080009
 COUNTRY - JAPAN                                    DEPTH(M)    9999.9
 LOCATION - OCT. 2  LAT. 35/30/24  LONG. 137/30/10  ELEVATION(M) 260.0
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-19 TO 1990-12-18

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN      NO2-N      NO3-N
                             COND                                            
                            02041      02062      06606      07207      07313
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         35          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35         35          0         35         35
 MEAN                         62.       10.9      0.005       0.00       0.25
 MINIMUM                      39.        3.0      0.005       0.00       0.14
 DATE OF MINIMUM       1989-04-18 1988-02-09 1988-01-19 1990-02-13 1990-06-12
 10TH PERCENTILE              44.        3.0      0.005       0.00       0.18
 MEDIAN                       58.       11.1      0.005       0.00       0.24
 90TH PERCENTILE              84.       18.7      0.005       0.00       0.31
 MAXIMUM                     120.       21.0      0.005       0.04       0.39
 DATE OF MAXIMUM       1988-02-09 1990-08-14 1990-12-18 1988-04-12 1988-08-09
 STANDARD DEVIATION           20.        6.0      0.000       0.01       0.06




                              NH3         O2         O2        BOD        ALK
                                        DISS       DISS                 TOTAL
                            07554      08101      08102      08201      10102
                           mg/L N    mg/L O2    mg/L O2    mg/L O2       mg/L


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35          1         33         35         35
 MEAN                        0.04       14.2       11.3         1.      17.91
 MINIMUM                     0.00                   8.6         0.       9.00
 DATE OF MINIMUM       1989-07-25            1990-07-17 1990-06-12 1988-09-26
 10TH PERCENTILE             0.00                   8.9         0.      12.85
 MEDIAN                      0.02                  11.2         0.      16.50
 90TH PERCENTILE             0.08                  13.7         1.      22.80
 MAXIMUM                     0.27                  14.7         3.      32.30
 DATE OF MAXIMUM       1988-04-12            1990-01-23 1988-04-12 1988-03-08
 STANDARD DEVIATION          0.05                   1.8         0.       5.27




                               pH   SUSP SOL    P ORTHO   SULPHATE         Cl
                                     105 DEG      TOTAL                  DISS
                            10301      10401      15205      16306      17204
                         pH UNITS       mg/L     mg/L P   mg/L SO4    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          0          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35         35         34          2         35
 MEAN                         7.2        13.      0.006         9.         3.
 MINIMUM                      6.8         1.      0.001                    1.
 DATE OF MINIMUM       1989-01-17 1988-10-11 1988-04-12            1990-07-17
 10TH PERCENTILE              7.0         1.      0.001                    1.
 MEDIAN                       7.3         6.      0.004                    2.
 90TH PERCENTILE              7.4        19.      0.014                    4.
 MAXIMUM                      7.5       130.      0.033                    6.
 DATE OF MAXIMUM       1989-09-26 1990-07-17 1988-09-26            1988-02-09
 STANDARD DEVIATION           0.2        27.      0.008                    1.



                             PCBS         Cr         Mn         Fe         Cu
                                       TOTAL      TOTAL      TOTAL      TOTAL
                            18165      24002      25004      26004      29006
                             ug/L    mg/L Cr    mg/L Mn    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES        6         35          0          0         20
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0         35         35         15
 MEAN                       0.100      0.005       0.04       0.36      0.001
 MINIMUM                    0.100      0.005       0.01       0.06      0.001
 DATE OF MINIMUM       1988-02-09 1988-01-19 1989-04-18 1988-11-01 1988-01-19
 10TH PERCENTILE                       0.005       0.01       0.08      0.001
 MEDIAN                     0.100      0.005       0.02       0.18      0.001
 90TH PERCENTILE                       0.005       0.09       0.51      0.002
 MAXIMUM                    0.100      0.005       0.26       2.80      0.003
 DATE OF MAXIMUM       1990-08-14 1990-12-18 1988-03-08 1988-09-26 1988-09-26
 STANDARD DEVIATION         0.000      0.000       0.05       0.60      0.000




                               Zn         Zn         As         Se   FAEC COL
                            TOTAL       DISS      TOTAL      TOTAL           
                            30004      30104      33007      34002      36011
                          mg/L Zn    mg/L Zn    mg/L As    mg/L Se   No/100ml


 NO. OF L-FLAGGED VALUES        2          0         10         10          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       33         26          0          0         35
 MEAN                       0.004      0.002      0.001      0.001       519.
 MINIMUM                    0.001      0.000      0.001      0.001        21.
 DATE OF MINIMUM       1988-01-19 1990-08-14 1988-02-09 1988-02-09 1988-05-17
 10TH PERCENTILE            0.001      0.001      0.001      0.001        49.
 MEDIAN                     0.003      0.002      0.001      0.001       220.
 90TH PERCENTILE            0.009      0.003      0.001      0.001      1500.
 MAXIMUM                    0.015      0.005      0.001      0.001      3500.
 DATE OF MAXIMUM       1988-05-17 1989-10-17 1990-08-14 1990-08-14 1988-01-19
 STANDARD DEVIATION         0.003      0.001      0.000      0.000       703.




                               Cd         Cd         Ba         Pb         Pb
                            TOTAL       DISS      TOTAL      TOTAL       DISS
                            48001      48101      80011      82001      82101
                          mg/L Cd    mg/L Cd    ug/L Hg    mg/L Pb    mg/L Pb


 NO. OF L-FLAGGED VALUES       35         35         12         30         31
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0          5          4
 MEAN                       0.000      0.000      0.500      0.003      0.003
 MINIMUM                    0.001      0.001      0.500      0.002      0.002
 DATE OF MINIMUM       1988-01-19 1988-01-19 1988-02-09 1989-01-17 1989-01-17
 10TH PERCENTILE            0.001      0.001      0.500      0.002      0.002
 MEDIAN                     0.001      0.001      0.500      0.002      0.002
 90TH PERCENTILE            0.001      0.001      0.500      0.004      0.004
 MAXIMUM                    0.001      0.001      0.500      0.010      0.010
 DATE OF MAXIMUM       1990-12-18 1990-12-18 1990-11-13 1990-05-22 1990-05-22
 STANDARD DEVIATION         0.000      0.000      0.000      0.002      0.002




                             INST
                           DISCHG
                            97160
                             m3/S


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       35
 MEAN                       136.6
 MINIMUM                     41.0
 DATE OF MINIMUM       1988-02-09
 10TH PERCENTILE             54.0
 MEDIAN                     120.0
 90TH PERCENTILE            164.0
 MAXIMUM                    608.0
 DATE OF MAXIMUM       1988-09-26
 STANDARD DEVIATION         110.1





 STATION - KISO RIVER AT INUYAMA                    STATION NO. 080010
 COUNTRY - JAPAN                                    DEPTH(M)       3.4
 LOCATION - OCT. 2  LAT. 35/23/42  LONG. 136/57/49  ELEVATION(M)  36.5
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-12 TO 1990-12-11

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN      NO2-N      NO3-N
                             COND                                            
                            02041      02062      06606      07207      07313
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         35          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          0         36         36
 MEAN                         73.       12.9      0.005       0.01       0.33
 MINIMUM                      37.        3.8      0.005       0.00       0.24
 DATE OF MINIMUM       1990-04-10 1990-02-06 1988-01-12 1989-03-07 1990-09-11
 10TH PERCENTILE              45.        4.8      0.005       0.00       0.26
 MEDIAN                       72.       13.5      0.005       0.00       0.33
 90TH PERCENTILE             106.       20.8      0.005       0.01       0.39
 MAXIMUM                     125.       25.0      0.005       0.01       0.46
 DATE OF MAXIMUM       1988-03-08 1990-08-07 1990-12-11 1990-01-09 1988-06-07
 STANDARD DEVIATION           23.        6.2      0.000       0.00       0.05




                              NH3         O2        BOD        ALK         pH
                                        DISS                 TOTAL           
                            07554      08102      08201      10102      10301
                           mg/L N    mg/L O2    mg/L O2       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         36         36         36
 MEAN                        0.07       10.9         1.      16.43        7.2
 MINIMUM                     0.02        8.0         0.       8.20        6.9
 DATE OF MINIMUM       1990-04-10 1990-08-07 1990-07-10 1990-04-10 1988-04-05
 10TH PERCENTILE             0.03        8.2         0.      11.30        7.0
 MEDIAN                      0.05       10.9         1.      16.90        7.2
 90TH PERCENTILE             0.13       12.8         1.      20.80        7.4
 MAXIMUM                     0.28       13.8         2.      26.00        7.6
 DATE OF MAXIMUM       1988-03-08 1989-02-07 1988-02-02 1988-03-08 1989-03-07
 STANDARD DEVIATION          0.05        1.5         0.       3.96        0.1




                         SUSP SOL    P ORTHO   SULPHATE         Cl       PCBS
                          105 DEG      TOTAL                  DISS           
                            10401      15205      16306      17204      18165
                             mg/L     mg/L P   mg/L SO4    mg/L Cl       ug/L


 NO. OF L-FLAGGED VALUES        0          0          0          0          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36          2         36          0
 MEAN                          5.      0.006         8.         5.      0.100
 MINIMUM                       1.      0.001                    2.      0.100
 DATE OF MINIMUM       1989-08-08 1988-04-05            1989-07-18 1988-02-02
 10TH PERCENTILE               1.      0.002                    3.           
 MEDIAN                        3.      0.005                    4.      0.100
 90TH PERCENTILE               8.      0.009                    8.           
 MAXIMUM                      34.      0.030                   11.      0.100
 DATE OF MAXIMUM       1988-06-07 1988-06-07            1988-03-08 1990-08-07
 STANDARD DEVIATION            6.      0.005                    2.      0.000



                               Cr         Mn         Fe         Cu         Zn
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            24002      25004      26004      29006      30004
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES       35          0          0         19          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         35         35         15         36
 MEAN                       0.005       0.02       0.17      0.001      0.013
 MINIMUM                    0.005       0.01       0.04      0.001      0.004
 DATE OF MINIMUM       1988-01-12 1989-10-04 1990-08-07 1988-07-05 1988-07-05
 10TH PERCENTILE            0.005       0.01       0.08      0.001      0.005
 MEDIAN                     0.005       0.02       0.11      0.001      0.011
 90TH PERCENTILE            0.005       0.03       0.35      0.002      0.022
 MAXIMUM                    0.005       0.04       1.00      0.005      0.034
 DATE OF MAXIMUM       1990-12-11 1988-06-07 1988-06-07 1988-02-02 1990-12-11
 STANDARD DEVIATION         0.000       0.01       0.18      0.001      0.007




                               Zn         As         Se   FAEC COL         Cd
                             DISS      TOTAL      TOTAL                 TOTAL
                            30104      33007      34002      36011      48001
                          mg/L Zn    mg/L As    mg/L Se   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        0         10         10          0         35
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       27          0          0         36          0
 MEAN                       0.011      0.001      0.001       506.      0.000
 MINIMUM                    0.003      0.001      0.001         4.      0.001
 DATE OF MINIMUM       1989-03-07 1988-02-02 1988-02-02 1990-06-05 1988-01-12
 10TH PERCENTILE            0.004      0.001      0.001        20.      0.001
 MEDIAN                     0.009      0.001      0.001       195.      0.001
 90TH PERCENTILE            0.019      0.001      0.001       973.      0.001
 MAXIMUM                    0.030      0.001      0.001      5400.      0.001
 DATE OF MAXIMUM       1990-12-11 1990-08-07 1990-08-07 1990-08-07 1990-12-11
 STANDARD DEVIATION         0.006      0.000      0.000       980.      0.000




                               Cd         Ba         Pb         Pb       INST
                             DISS      TOTAL      TOTAL       DISS     DISCHG
                            48101      80011      82001      82101      97160
                          mg/L Cd    ug/L Hg    mg/L Pb    mg/L Pb       m3/S


 NO. OF L-FLAGGED VALUES       36         12         32         33          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          4          3         36
 MEAN                       0.000      0.500      0.003      0.002      218.1
 MINIMUM                    0.001      0.500      0.002      0.002       52.0
 DATE OF MINIMUM       1988-01-12 1988-02-02 1989-01-10 1989-01-10 1990-02-06
 10TH PERCENTILE            0.001      0.500      0.002      0.002       72.0
 MEDIAN                     0.001      0.500      0.002      0.002      186.5
 90TH PERCENTILE            0.001      0.500      0.003      0.003      375.8
 MAXIMUM                    0.001      0.500      0.005      0.005      905.0
 DATE OF MAXIMUM       1990-12-11 1990-11-06 1988-02-02 1988-11-08 1989-07-18
 STANDARD DEVIATION         0.000      0.000      0.001      0.001      163.4





 STATION - KISO RIVER AT ASAHI                      STATION NO. 080011
 COUNTRY - JAPAN                                    DEPTH(M)       2.2
 LOCATION - OCT. 2  LAT. 35/16/46  LONG. 136/43/07  ELEVATION(M)   3.5
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-11 TO 1990-12-03

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP       TEMP         CN      NO2-N
                             COND                                            
                            02041      02061      02062      06606      07207
                            us/cm      deg C      deg C    mg/L Cn     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0         36          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         24         12          0         36
 MEAN                         75.       13.9       13.2      0.005       0.01
 MINIMUM                      36.        3.8        5.1      0.005       0.00
 DATE OF MINIMUM       1989-03-06 1990-01-08 1988-02-01 1988-01-11 1989-03-06
 10TH PERCENTILE              50.        4.7        5.2      0.005       0.00
 MEDIAN                       70.       13.2       12.5      0.005       0.01
 90TH PERCENTILE             102.       21.1       20.4      0.005       0.02
 MAXIMUM                     126.       27.9       22.5      0.005       0.02
 DATE OF MAXIMUM       1988-03-07 1990-08-06 1988-09-05 1990-12-03 1988-02-01
 STANDARD DEVIATION           22.        6.6        6.3      0.000       0.00




                            NO3-N        NH3        NH3         O2        BOD
                                                              DISS           
                            07313      07554      07556      08102      08201
                           mg/L N     mg/L N     mg/L N    mg/L O2    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       36         12         24         36         36
 MEAN                        0.39       0.14       0.08       10.8         1.
 MINIMUM                     0.27       0.05       0.00        7.9         0.
 DATE OF MINIMUM       1990-06-04 1988-10-03 1989-12-04 1990-09-03 1988-10-03
 10TH PERCENTILE             0.29       0.05       0.01        8.6         0.
 MEDIAN                      0.41       0.16       0.08       10.8         1.
 90TH PERCENTILE             0.46       0.19       0.12       12.8         1.
 MAXIMUM                     0.54       0.24       0.29       13.6         2.
 DATE OF MAXIMUM       1989-01-09 1988-02-01 1989-01-09 1988-01-11 1990-04-02
 STANDARD DEVIATION          0.07       0.06       0.06        1.7         0.




                              ALK         pH   SUSP SOL    P ORTHO         Cl
                            TOTAL               105 DEG      TOTAL       DISS
                            10102      10301      10401      15205      17204
                             mg/L   pH UNITS       mg/L     mg/L P    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          0          0          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         36         33         36
 MEAN                       16.91        7.4         8.      0.010         5.
 MINIMUM                     7.70        6.9         1.      0.001         2.
 DATE OF MINIMUM       1990-05-07 1990-05-07 1990-01-08 1989-05-08 1989-09-11
 10TH PERCENTILE            11.76        7.1         2.      0.002         3.
 MEDIAN                     16.90        7.4         5.      0.010         5.
 90TH PERCENTILE            21.22        7.8        12.      0.023         8.
 MAXIMUM                    26.00        8.0        64.      0.029        11.
 DATE OF MAXIMUM       1988-03-07 1988-03-07 1989-03-06 1988-02-01 1988-02-01
 STANDARD DEVIATION          4.13        0.3        11.      0.008         2.




                             PCBS         Cr         Mn         Fe         Fe
                                       TOTAL      TOTAL      TOTAL      TOTAL
                            18165      24002      25004      26002      26004
                             ug/L    mg/L Cr    mg/L Mn    mg/L Fe    mg/L Fe


 NO. OF L-FLAGGED VALUES        5         36          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          0         36         24         12
 MEAN                       0.100      0.005       0.02       0.29       0.18
 MINIMUM                    0.100      0.005       0.01       0.07       0.08
 DATE OF MINIMUM       1988-02-01 1988-01-11 1988-11-07 1990-01-08 1988-01-11
 10TH PERCENTILE                       0.005       0.01       0.08       0.08
 MEDIAN                     0.100      0.005       0.02       0.18       0.15
 90TH PERCENTILE                       0.005       0.03       0.67       0.30
 MAXIMUM                    0.100      0.005       0.05       1.40       0.36
 DATE OF MAXIMUM       1990-08-06 1990-12-03 1990-10-01 1989-03-06 1988-07-04
 STANDARD DEVIATION         0.000      0.000       0.01       0.33       0.09




                               Cu         Zn         Zn         As         Se
                            TOTAL      TOTAL       DISS      TOTAL      TOTAL
                            29006      30004      30104      33003      34002
                          mg/L Cu    mg/L Zn    mg/L Zn    mg/L As    mg/L Se


 NO. OF L-FLAGGED VALUES        1          0          1          2          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       34         36         35          4          0
 MEAN                       0.001      0.007      0.004      0.001      0.001
 MINIMUM                    0.001      0.003      0.000      0.001      0.001
 DATE OF MINIMUM       1988-01-11 1988-08-01 1990-06-04 1988-02-01 1988-02-01
 10TH PERCENTILE            0.001      0.004      0.001                      
 MEDIAN                     0.001      0.007      0.004      0.001      0.001
 90TH PERCENTILE            0.002      0.014      0.009                      
 MAXIMUM                    0.002      0.020      0.016      0.001      0.001
 DATE OF MAXIMUM       1989-03-06 1990-12-03 1990-01-08 1990-08-06 1990-08-06
 STANDARD DEVIATION         0.000      0.004      0.004      0.000      0.000




                         FAEC COL         Cd         Cd         Ba         Pb
                                       TOTAL       DISS      TOTAL      TOTAL
                            36011      48001      48101      80011      82001
                         No/100ml    mg/L Cd    mg/L Cd    ug/L Hg    mg/L Pb


 NO. OF L-FLAGGED VALUES        0         36         33          9         36
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36          0          0          0          0
 MEAN                        330.      0.002      0.002      0.500      0.002
 MINIMUM                      27.      0.001      0.001      0.500      0.002
 DATE OF MINIMUM       1990-06-04 1988-01-11 1989-01-09 1988-02-01 1988-01-11
 10TH PERCENTILE              33.      0.001      0.001                 0.002
 MEDIAN                      130.      0.001      0.001      0.500      0.002
 90TH PERCENTILE             811.      0.005      0.005                 0.002
 MAXIMUM                    1400.      0.005      0.005      0.500      0.002
 DATE OF MAXIMUM       1990-10-01 1988-12-05 1988-12-05 1990-11-05 1990-12-03
 STANDARD DEVIATION          385.      0.002      0.002      0.000      0.000



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


 NO. OF L-FLAGGED VALUES       27          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        0         36
 MEAN                       0.002      186.2
 MINIMUM                    0.002       44.0
 DATE OF MINIMUM       1988-10-03 1988-03-07
 10TH PERCENTILE            0.002       50.8
 MEDIAN                     0.002      167.5
 90TH PERCENTILE            0.002      349.3
 MAXIMUM                    0.002      540.0
 DATE OF MAXIMUM       1990-12-03 1990-10-01
 STANDARD DEVIATION         0.000      125.6





 STATION - LAKE BIWA OFF MIIDERA                    STATION NO. 080012
 COUNTRY - JAPAN                                    DEPTH(M)       2.7
 LOCATION - OCT. 2  LAT. 35/00/45  LONG. 135/51/56  ELEVATION(M)  84.4
 REGIONAL CENTRE - WPRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-20 TO 1990-12-19

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP        TOC         CN      NO2-N
                             COND                                            
                            02041      02061      06001      06606      07207
                            us/cm      deg C     mg/L C    mg/L Cn     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0         19          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         23          0         34
 MEAN                        117.       17.0         2.      0.010       0.00
 MINIMUM                     101.        5.1         1.      0.010       0.00
 DATE OF MINIMUM       1989-09-20 1990-01-24 1988-06-15 1988-01-20 1988-09-20
 10TH PERCENTILE             109.        7.4         2.      0.010       0.00
 MEDIAN                      116.       17.0         2.      0.010       0.00
 90TH PERCENTILE             122.       27.4         2.      0.010       0.01
 MAXIMUM                     131.       29.6         3.      0.010       0.01
 DATE OF MAXIMUM       1989-12-20 1990-08-22 1990-09-26 1990-12-19 1988-06-15
 STANDARD DEVIATION            6.        7.8         0.      0.000       0.00




                            NO3-N        NH3         O2        BOD     PERM V
                                                   DISS                      
                            07313      07555      08101      08201      08401
                           mg/L N     mg/L N    mg/L O2    mg/L O2    mg/L O2


 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                        0.18       0.08       10.2         2.         1.
 MINIMUM                     0.01       0.03        7.8         1.         0.
 DATE OF MINIMUM       1989-08-16 1988-03-09 1989-08-16 1989-02-15 1989-02-15
 10TH PERCENTILE             0.04       0.04        8.4         1.         1.
 MEDIAN                      0.17       0.07       10.2         1.         1.
 90TH PERCENTILE             0.34       0.11       11.6         2.         2.
 MAXIMUM                     0.56       0.14       13.0         3.         2.
 DATE OF MAXIMUM       1989-09-20 1990-06-20 1988-01-20 1989-09-20 1990-07-18
 STANDARD DEVIATION          0.13       0.03        1.2         1.         0.




                                F        ALK         pH   SUSP SOL         Na
                             DISS      TOTAL               105 DEG       DISS
                            09105      10102      10302      10401      11105
                           mg/L F       mg/L   pH UNITS       mg/L    mg/L Na


 NO. OF L-FLAGGED VALUES        0          0          0          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       26         36         36         35         26
 MEAN                         0.1      28.85        7.9         7.         7.
 MINIMUM                      0.1      26.10        7.3         1.         5.
 DATE OF MINIMUM       1988-02-24 1989-03-08 1989-02-15 1990-12-19 1988-01-20
 10TH PERCENTILE              0.1      27.28        7.3         1.         6.
 MEDIAN                       0.1      28.95        7.8         6.         7.
 90TH PERCENTILE              0.1      30.50        8.6        11.         8.
 MAXIMUM                      0.1      30.80        9.2        18.        10.
 DATE OF MAXIMUM       1989-08-16 1990-06-20 1990-10-24 1989-12-20 1989-09-20
 STANDARD DEVIATION           0.0       1.29        0.5         4.         1.



                               Mg    P ORTHO          P   SULPHATE         Cl
                             DISS      TOTAL      TOTAL                  DISS
                            12103      15205      15405      16306      17201
                          mg/L Mg     mg/L P     mg/L P   mg/L SO4    mg/L Cl


 NO. OF L-FLAGGED VALUES        0         24          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35          1         25         25         35
 MEAN                          2.      0.010      0.026        11.         9.
 MINIMUM                       1.      0.010      0.010         8.         1.
 DATE OF MINIMUM       1989-10-18 1988-01-20 1988-01-20 1988-06-15 1989-06-21
 10TH PERCENTILE               2.      0.010      0.010         9.         8.
 MEDIAN                        2.      0.010      0.020        10.         9.
 90TH PERCENTILE               2.      0.010      0.035        11.        11.
 MAXIMUM                       4.      0.010      0.090        17.        12.
 DATE OF MAXIMUM       1990-10-24 1990-11-28 1988-02-24 1990-01-24 1989-12-20
 STANDARD DEVIATION            0.      0.000      0.016         2.         2.




                              DDT     ALDRIN   DIELDRIN       PCBS          K
                            TOTAL                                        DISS
                            18002      18130      18150      18165      19105
                             ug/L       ug/L       ug/L       ug/L     mg/L K


 NO. OF L-FLAGGED VALUES        3          3          3          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0          0         26
 MEAN                       0.007      0.001      0.001      0.500        1.5
 MINIMUM                                                                  1.0
 DATE OF MINIMUM                                                   1988-08-24
 10TH PERCENTILE                                                          1.1
 MEDIAN                                                                   1.4
 90TH PERCENTILE                                                          1.7
 MAXIMUM                                                                  3.3
 DATE OF MAXIMUM                                                   1990-01-24
 STANDARD DEVIATION                                                       0.4




                               Ca         Cr         Mn         Fe         Cu
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            20101      24002      25004      26004      29006
                          mg/L Ca    mg/L Cr    mg/L Mn    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES        0         28          0          1         20
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35          1         29         28          9
 MEAN                      11.069      0.013       0.01       0.16      0.010
 MINIMUM                    9.000      0.010       0.01       0.05      0.010
 DATE OF MINIMUM       1990-10-24 1988-01-20 1988-01-20 1989-04-19 1988-02-24
 10TH PERCENTILE           10.000      0.010       0.01       0.06      0.010
 MEDIAN                    11.200      0.010       0.01       0.13      0.010
 90TH PERCENTILE           11.700      0.010       0.02       0.28      0.010
 MAXIMUM                   13.200      0.100       0.04       0.54      0.020
 DATE OF MAXIMUM       1989-12-20 1988-06-15 1988-09-20 1989-12-20 1988-01-20
 STANDARD DEVIATION         0.762      0.017       0.01       0.11      0.002




                               Zn         As   COLIFORM         Cd         Ba
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            30004      33003      36001      48001      80011
                          mg/L Zn    mg/L As   No/100ml    mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES       13         26          0         29         20
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       16          0         25          0          0
 MEAN                       0.010      0.010       757.      0.010      0.500
 MINIMUM                    0.001      0.001         9.      0.010      0.500
 DATE OF MINIMUM       1988-02-24 1988-09-20 1990-05-09 1988-01-20 1988-01-20
 10TH PERCENTILE            0.010      0.010        19.      0.010      0.500
 MEDIAN                     0.010      0.010        93.      0.010      0.500
 90TH PERCENTILE            0.010      0.010      2300.      0.010      0.500
 MAXIMUM                    0.020      0.010      4300.      0.010      0.500
 DATE OF MAXIMUM       1990-12-19 1988-08-24 1989-09-20 1990-12-19 1990-12-19
 STANDARD DEVIATION         0.003      0.002      1295.      0.000      0.000




                               Pb
                            TOTAL
                            82001
                          mg/L Pb


 NO. OF L-FLAGGED VALUES       27
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        0
 MEAN                       0.010
 MINIMUM                    0.001
 DATE OF MINIMUM       1988-02-24
 10TH PERCENTILE            0.010
 MEDIAN                     0.010
 90TH PERCENTILE            0.010
 MAXIMUM                    0.010
 DATE OF MAXIMUM       1990-12-19
 STANDARD DEVIATION         0.002





 STATION - YODO RIVER AT HIRAKATA BRIDGE            STATION NO. 080013
 COUNTRY - JAPAN                                    DEPTH(M)       3.0
 LOCATION - OCT. 2  LAT. 34/48/00  LONG. 135/37/58  ELEVATION(M)   6.9
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-20 TO 1990-12-19

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP        TOC         CN      NO2-N
                             COND                                            
                            02041      02061      06001      06606      07207
                            us/cm      deg C     mg/L C    mg/L Cn     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0         20          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       36         36         23          0         36
 MEAN                        168.       16.2         2.      0.010       0.04
 MINIMUM                     100.        5.7         2.      0.010       0.02
 DATE OF MINIMUM       1989-09-20 1990-01-24 1988-06-15 1988-01-20 1988-06-15
 10TH PERCENTILE             127.        7.0         2.      0.010       0.02
 MEDIAN                      166.       16.1         2.      0.010       0.04
 90TH PERCENTILE             212.       25.8         3.      0.010       0.06
 MAXIMUM                     248.       28.5         3.      0.010       0.08
 DATE OF MAXIMUM       1988-01-20 1990-08-22 1988-11-16 1990-12-19 1990-01-24
 STANDARD DEVIATION           35.        7.3         0.      0.000       0.02




                            NO3-N        NH3         O2        BOD     PERM V
                                                   DISS                      
                            07313      07555      08101      08201      08401
                           mg/L N     mg/L N    mg/L O2    mg/L O2    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       36         36         36         36         36
 MEAN                        0.87       0.57        8.7         3.         2.
 MINIMUM                     0.28       0.12        6.2         0.         1.
 DATE OF MINIMUM       1988-06-15 1989-09-20 1990-08-22 1990-09-26 1989-04-19
 10TH PERCENTILE             0.49       0.17        6.5         1.         2.
 MEDIAN                      0.92       0.47        8.8         2.         2.
 90TH PERCENTILE             1.10       1.19       10.5         5.         3.
 MAXIMUM                     1.22       1.59       10.8         8.         5.
 DATE OF MAXIMUM       1990-02-21 1988-03-09 1988-12-14 1989-10-18 1989-09-20
 STANDARD DEVIATION          0.22       0.39        1.4         1.         1.




                                F        ALK         pH   SUSP SOL         Na
                             DISS      TOTAL               105 DEG       DISS
                            09105      10102      10302      10401      11105
                           mg/L F       mg/L   pH UNITS       mg/L    mg/L Na


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       26         36         36         36         26
 MEAN                         0.1      33.47        7.3        23.        14.
 MINIMUM                      0.1      21.40        7.1         8.         6.
 DATE OF MINIMUM       1988-02-24 1989-09-20 1989-03-08 1990-01-24 1989-09-20
 10TH PERCENTILE              0.1      26.42        7.1        11.         8.
 MEDIAN                       0.1      33.10        7.3        18.        14.
 90TH PERCENTILE              0.1      40.63        7.4        42.        19.
 MAXIMUM                      0.1      43.90        7.7        97.        24.
 DATE OF MAXIMUM       1988-08-24 1988-03-09 1990-10-24 1989-09-20 1988-03-09
 STANDARD DEVIATION           0.0       5.27        0.1        17.         5.




                               Mg    P ORTHO          P   SULPHATE         Cl
                             DISS      TOTAL      TOTAL                  DISS
                            12103      15205      15405      16306      17201
                          mg/L Mg     mg/L P     mg/L P   mg/L SO4    mg/L Cl


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35         25         25         25         36
 MEAN                          2.      0.066      0.140        19.        14.
 MINIMUM                       2.      0.010      0.050        11.         7.
 DATE OF MINIMUM       1988-09-20 1988-07-20 1988-06-15 1989-09-20 1989-09-20
 10TH PERCENTILE               2.      0.025      0.065        12.         9.
 MEDIAN                        2.      0.060      0.130        18.        13.
 90TH PERCENTILE               2.      0.110      0.210        28.        18.
 MAXIMUM                       3.      0.190      0.250        37.        22.
 DATE OF MAXIMUM       1990-10-24 1988-01-20 1988-02-24 1988-01-20 1988-01-20
 STANDARD DEVIATION            0.      0.043      0.053         7.         3.




                              DDT     ALDRIN   DIELDRIN       PCBS          K
                            TOTAL                                        DISS
                            18002      18130      18150      18165      19105
                             ug/L       ug/L       ug/L       ug/L     mg/L K


 NO. OF L-FLAGGED VALUES        3          3          3          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0          0         26
 MEAN                       0.007      0.001      0.001      0.500        2.4
 MINIMUM                                                                  1.4
 DATE OF MINIMUM                                                   1988-08-24
 10TH PERCENTILE                                                          1.5
 MEDIAN                                                                   2.2
 90TH PERCENTILE                                                          2.9
 MAXIMUM                                                                  5.3
 DATE OF MAXIMUM                                                   1990-01-24
 STANDARD DEVIATION                                                       0.7




                               Ca         Cr         Mn         Fe         Cu
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            20101      24002      25004      26004      29006
                          mg/L Ca    mg/L Cr    mg/L Mn    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES        0         28          0          0         13
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       35          1         29         29         16
 MEAN                      12.611      0.010       0.05       0.60      0.011
 MINIMUM                    9.000      0.010       0.02       0.25      0.010
 DATE OF MINIMUM       1989-09-20 1988-01-20 1989-06-21 1988-11-16 1988-01-20
 10TH PERCENTILE           10.900      0.010       0.03       0.30      0.010
 MEDIAN                    12.600      0.010       0.04       0.50      0.010
 90TH PERCENTILE           14.750      0.010       0.06       0.93      0.010
 MAXIMUM                   15.200      0.010       0.17       1.65      0.030
 DATE OF MAXIMUM       1988-02-24 1990-12-19 1989-09-20 1988-07-20 1989-12-20
 STANDARD DEVIATION         1.540      0.000       0.03       0.35      0.004




                               Zn         As   COLIFORM         Cd         Ba
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            30004      33003      36001      48001      80011
                          mg/L Zn    mg/L As   No/100ml    mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES        0         26          0         29         21
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       29          0         25          0          0
 MEAN                       0.013      0.010    1.0E+05      0.010      0.477
 MINIMUM                    0.010      0.010    4.3E+03      0.010      0.010
 DATE OF MINIMUM       1988-05-18 1988-01-20 1989-03-08 1988-01-20 1988-04-20
 10TH PERCENTILE            0.010      0.010    6.8E+03      0.010      0.500
 MEDIAN                     0.010      0.010    4.3E+04      0.010      0.500
 90TH PERCENTILE            0.020      0.010    2.3E+05      0.010      0.500
 MAXIMUM                    0.020      0.010    9.3E+05      0.010      0.500
 DATE OF MAXIMUM       1988-04-20 1990-12-19 1988-04-20 1990-12-19 1988-03-09
 STANDARD DEVIATION         0.005      0.000    1.9E+05      0.000      0.107




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


 NO. OF L-FLAGGED VALUES       27          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        0          6
 MEAN                       0.010      220.0
 MINIMUM                    0.010       90.9
 DATE OF MINIMUM       1988-01-20 1988-03-09
 10TH PERCENTILE            0.010           
 MEDIAN                     0.010      118.3
 90TH PERCENTILE            0.010           
 MAXIMUM                    0.010      678.3
 DATE OF MAXIMUM       1990-12-19 1988-06-15
 STANDARD DEVIATION         0.000      230.1





 STATION - OHTA RIVER AT HESAKA                     STATION NO. 080014
 COUNTRY - JAPAN                                    DEPTH(M)       1.0
 LOCATION - OCT. 2  LAT. 34/26/13  LONG. 132/29/26  ELEVATION(M)   5.6
 REGIONAL CENTRE - WPRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1988-01-01 TO 1990-12-31
 PERIOD OF RECORD FROM  - 1988-01-06 TO 1990-12-17

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         CN     N KJEL      NO2-N
                             COND                                            
                            02041      02061      06606      07001      07207
                            us/cm      deg C    mg/L Cn     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         36          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72          0         36         72
 MEAN                         69.       14.1      0.005        0.1       0.01
 MINIMUM                      40.        3.8      0.005        0.0       0.00
 DATE OF MINIMUM       1990-03-01 1990-01-24 1988-01-25 1990-02-19 1989-09-27
 10TH PERCENTILE              58.        5.3      0.005        0.0       0.00
 MEDIAN                       69.       14.4      0.005        0.1       0.00
 90TH PERCENTILE              83.       23.3      0.005        0.2       0.01
 MAXIMUM                      93.       26.4      0.005        0.2       0.01
 DATE OF MAXIMUM       1990-01-08 1990-08-22 1990-12-03 1989-06-19 1989-02-08
 STANDARD DEVIATION           10.        6.8      0.000        0.0       0.00




                            NO3-N        NH3         O2        BOD          F
                                                   DISS                  DISS
                            07313      07556      08101      08201      09110
                           mg/L N     mg/L N    mg/L O2    mg/L O2     mg/L F


 NO. OF L-FLAGGED VALUES        0          0          0          0         27
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       72         72         72         72          9
 MEAN                        0.43       0.04       10.5         1.        0.1
 MINIMUM                     0.29       0.01        7.6         0.        0.1
 DATE OF MINIMUM       1989-04-05 1989-10-18 1988-11-28 1989-07-19 1988-01-25
 10TH PERCENTILE             0.34       0.02        8.6         0.        0.1
 MEDIAN                      0.42       0.03       10.3         1.        0.1
 90TH PERCENTILE             0.52       0.05       12.4         1.        0.1
 MAXIMUM                     0.58       0.08       13.2         2.        0.1
 DATE OF MAXIMUM       1990-01-08 1989-02-08 1988-12-07 1988-07-20 1989-08-23
 STANDARD DEVIATION          0.07       0.01        1.5         0.        0.0




                              ALK         pH   SUSP SOL         Na         Mg
                            TOTAL               105 DEG       DISS       DISS
                            10102      10301      10401      11102      12103
                             mg/L   pH UNITS       mg/L    mg/L Na    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       72         72         72         36         36
 MEAN                       15.03        7.3         4.         5.         1.
 MINIMUM                    10.10        7.1         1.         1.         1.
 DATE OF MINIMUM       1988-03-23 1989-05-24 1989-10-18 1988-10-24 1989-02-22
 10TH PERCENTILE            11.52        7.2         2.         4.         1.
 MEDIAN                     14.90        7.3         4.         5.         1.
 90TH PERCENTILE            18.85        7.5         7.         6.         1.
 MAXIMUM                    21.20        7.6        22.         9.         1.
 DATE OF MAXIMUM       1988-09-19 1989-08-09 1990-10-04 1988-01-25 1988-11-09
 STANDARD DEVIATION          2.64        0.1         3.         1.         0.



                          P ORTHO          P   SULPHATE         Cl        DDT
                            TOTAL      TOTAL                  DISS      TOTAL
                            15205      15405      16306      17204      18002
                           mg/L P     mg/L P   mg/L SO4    mg/L Cl       ug/L


 NO. OF L-FLAGGED VALUES        0          0          0          0         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       37         36         36         72          0
 MEAN                       1.143      0.025         5.         7.      0.100
 MINIMUM                    0.005      0.014         2.         4.      0.100
 DATE OF MINIMUM       1989-08-23 1990-09-26 1990-08-22 1988-05-11 1988-01-25
 10TH PERCENTILE            0.006      0.016         4.         5.      0.100
 MEDIAN                     0.010      0.023         5.         6.      0.100
 90TH PERCENTILE            0.016      0.035         6.         9.      0.100
 MAXIMUM                   41.900      0.053         8.        14.      0.100
 DATE OF MAXIMUM       1990-10-22 1988-07-20 1990-09-26 1988-01-25 1990-10-04
 STANDARD DEVIATION         6.887      0.009         1.         2.      0.000




                           ALDRIN   DIELDRIN       PCBS          K         Ca
                                                              DISS       DISS
                            18130      18150      18165      19102      20101
                             ug/L       ug/L       ug/L     mg/L K    mg/L Ca


 NO. OF L-FLAGGED VALUES       12         12         11          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0         36         36
 MEAN                       0.010      0.100      0.500        0.9      5.361
 MINIMUM                    0.010      0.100      0.500        0.7      3.500
 DATE OF MINIMUM       1988-01-25 1988-01-25 1988-01-25 1988-04-20 1989-02-22
 10TH PERCENTILE            0.010      0.100      0.500        0.7      4.220
 MEDIAN                     0.010      0.100      0.500        0.9      5.400
 90TH PERCENTILE            0.010      0.100      0.500        1.2      6.360
 MAXIMUM                    0.010      0.100      0.500        1.3      7.000
 DATE OF MAXIMUM       1990-10-04 1990-10-04 1990-09-05 1990-08-22 1988-08-10
 STANDARD DEVIATION         0.000      0.000      0.000        0.2      0.879




                               Cr         Mn         Fe         Cu         Zn
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            24002      25004      26002      29006      30004
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES       35          0          1         36         33
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1         36         35          0          3
 MEAN                       0.009       0.02       0.22      0.005      0.005
 MINIMUM                    0.005       0.01       0.08      0.005      0.005
 DATE OF MINIMUM       1988-01-25 1988-01-25 1988-12-16 1988-01-25 1988-01-25
 10TH PERCENTILE            0.005       0.01       0.10      0.005      0.005
 MEDIAN                     0.005       0.02       0.19      0.005      0.005
 90TH PERCENTILE            0.005       0.03       0.33      0.005      0.005
 MAXIMUM                    0.140       0.04       0.90      0.005      0.009
 DATE OF MAXIMUM       1990-05-23 1988-09-07 1988-07-20 1990-12-03 1990-10-04
 STANDARD DEVIATION         0.023       0.01       0.17      0.000      0.001




                               As         Se   COLIFORM   FAEC COL         Cd