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STATISTICS for MAROC

STATISTICS FOR MAROC


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-02-04   PAGE 103

 STATION - PONT ALLAL TAZI RP 2                     STATION NO. 077001
 COUNTRY - MAROC                                    DEPTH(M)       0.2
 LOCATION - OCT. 0  LAT. 34/30/00  LONG. 006/30/00  ELEVATION(M)   3.0
 REGIONAL CENTRE - EMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-02-06 TO 1999-07-23

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP      TRANS
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      02076
                            MEQ/L      MEQ/L      us/cm      deg C          m


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          5         12         11          3
 MEAN                      11.616     12.236      1195.       20.3        0.9
 MINIMUM                   10.360     10.780       630.       14.0           
 DATE OF MINIMUM       1997-09-07 1997-06-05 1998-10-01 1997-12-31           
 10TH PERCENTILE                                   632.       14.1           
 MEDIAN                    11.450     11.260      1202.       21.3           
 90TH PERCENTILE                                  1545.       24.1           
 MAXIMUM                   14.030     15.500      1950.       26.1           
 DATE OF MAXIMUM       1997-02-06 1997-02-06 1997-02-06 1997-09-07           
 STANDARD DEVIATION         1.434      1.963       381.        4.0           




                         CHLORO A     NO3NO2        NH3    PERCENT         O2
                                                            DO SAT       DISS
                            06711      07105      07556      08001      08101
                             mg/L     mg/L N     mg/L N    PERCENT    mg/L O2


 NO. OF L-FLAGGED VALUES        1          1          1          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          9          7         10         11
 MEAN                      6.4167       6.35       0.07        90.        8.0
 MINIMUM                   0.5000       0.48       0.01        67.        6.0
 DATE OF MINIMUM       1997-02-06 1999-05-22 1997-06-05 1999-05-22 1999-05-22
 10TH PERCENTILE                        0.48                   67.        6.1
 MEDIAN                    4.7000       7.05       0.04        90.        8.0
 90TH PERCENTILE                       11.53                  104.        9.0
 MAXIMUM                  20.3000      13.61       0.18       106.       10.5
 DATE OF MAXIMUM       1997-12-31 1997-02-06 1997-04-17 1997-06-05 1999-03-12
 STANDARD DEVIATION        7.0952       4.42       0.06        12.        1.2




                              BOD          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            08201      09105      10102      10301      10401
                          mg/L O2     mg/L F       mg/L   pH UNITS       mg/L


 NO. OF L-FLAGGED VALUES        0          0          0          0          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5         12          3         12          7
 MEAN                          3.        0.2     143.33        8.2       145.
 MINIMUM                       2.        0.1                   7.8        10.
 DATE OF MINIMUM       1997-12-31 1999-03-12            1997-02-06 1997-04-17
 10TH PERCENTILE                         0.1                   7.8        10.
 MEDIAN                        3.        0.2                   8.3        22.
 90TH PERCENTILE                         0.3                   8.5       520.
 MAXIMUM                       3.        0.4                   8.5       580.
 DATE OF MAXIMUM       1997-09-07 1999-07-23            1997-06-05 1997-02-06
 STANDARD DEVIATION            0.        0.1                   0.3       223.




                               Na         Mg         Al         Si          P
                             DISS       DISS      TOTAL   REACTIVE      TOTAL
                            11105      12102      13002      14101      15405
                          mg/L Na    mg/L Mg    mg/L Al   mg/LSiO2     mg/L P


 NO. OF L-FLAGGED VALUES        0          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12          8         10          2          7
 MEAN                        115.        37.      0.340       3.35      0.698
 MINIMUM                      50.        20.      0.060                 0.200
 DATE OF MINIMUM       1997-12-31 1998-10-01 1997-04-17            1997-04-17
 10TH PERCENTILE              51.                 0.060                      
 MEDIAN                      120.        23.      0.120                 0.220
 90TH PERCENTILE             150.                 0.390                      
 MAXIMUM                     180.       121.      1.800                 4.200
 DATE OF MAXIMUM       1997-02-06 1998-01-26 1998-01-26            1998-01-26
 STANDARD DEVIATION           38.        34.      0.531                 1.317




                         SULPHATE         Cl        DDT    LINDANE     ALDRIN
                                        DISS      TOTAL                      
                            16302      17201      18002      18070      18130
                         mg/L SO4    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          8          7          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         11          0          1          1
 MEAN                         83.       197.      0.003      0.003      0.002
 MINIMUM                      30.        46.      0.003      0.001      0.001
 DATE OF MINIMUM       1998-10-01 1998-10-01 1997-02-06 1997-02-06 1997-02-06
 10TH PERCENTILE              33.        54.                                 
 MEDIAN                       93.       188.      0.003      0.001      0.001
 90TH PERCENTILE             106.       271.                                 
 MAXIMUM                     111.       330.      0.003      0.015      0.010
 DATE OF MAXIMUM       1997-02-06 1997-02-06 1999-03-12 1997-09-07 1997-09-07
 STANDARD DEVIATION           24.        75.      0.000      0.005      0.003




                         DIELDRIN          K         Ca         Ca         Cr
                                        DISS       DISS       DISS      TOTAL
                            18150      19105      20101      20105      24002
                             ug/L     mg/L K    mg/L Ca    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        8          0          0          0          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         12          9          2          2
 MEAN                       0.002        4.6     63.200     66.550      0.002
 MINIMUM                    0.002        2.4     46.400                 0.001
 DATE OF MINIMUM       1997-02-06 1998-03-26 1998-10-01            1997-02-06
 10TH PERCENTILE                         2.5                            0.001
 MEDIAN                     0.002        4.2     62.400                 0.001
 90TH PERCENTILE                         6.5                            0.001
 MAXIMUM                    0.002        7.3     83.200                 0.006
 DATE OF MAXIMUM       1999-03-12 1999-03-12 1997-02-06            1998-01-26
 STANDARD DEVIATION         0.000        1.5     12.560                 0.002




                               Mn         Fe         Fe         Cu         Cu
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            25004      26002      26004      29001      29006
                          mg/L Mn    mg/L Fe    mg/L Fe    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          0          2          9
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12          3          9          0          0
 MEAN                        0.08       0.82       2.13      0.010      0.010
 MINIMUM                     0.01                  0.06                 0.010
 DATE OF MINIMUM       1997-06-05            1999-03-12            1997-04-17
 10TH PERCENTILE             0.01                                            
 MEDIAN                      0.03                  0.34                 0.010
 90TH PERCENTILE             0.14                                            
 MAXIMUM                     0.36                 17.00                 0.010
 DATE OF MAXIMUM       1997-12-31            1997-12-31            1999-07-23
 STANDARD DEVIATION          0.10                  5.58                 0.000




                               Zn         As         Se   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL      TOTAL           
                            30004      33007      34002      36001      36011
                          mg/L Zn    mg/L As    mg/L Se   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        2          8          8          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10          2          0          7          9
 MEAN                       0.031      0.005      0.005       163.        41.
 MINIMUM                    0.010      0.005      0.005         0.         0.
 DATE OF MINIMUM       1997-04-17 1997-02-06 1997-02-06 1997-02-06 1997-02-06
 10TH PERCENTILE            0.010      0.005                                 
 MEDIAN                     0.020      0.005      0.005        43.        15.
 90TH PERCENTILE            0.047      0.005                                 
 MAXIMUM                    0.120      0.007      0.005       460.       240.
 DATE OF MAXIMUM       1997-12-31 1998-03-26 1999-03-12 1998-10-01 1998-10-01
 STANDARD DEVIATION         0.031      0.001      0.000       209.        76.




                               Cd         Pb
                            TOTAL      TOTAL
                            48001      82001
                          mg/L Cd    mg/L Pb


 NO. OF L-FLAGGED VALUES       10         10
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        0          0
 MEAN                       0.001      0.010
 MINIMUM                    0.001      0.010
 DATE OF MINIMUM       1997-02-06 1997-02-06
 10TH PERCENTILE            0.001      0.010
 MEDIAN                     0.001      0.010
 90TH PERCENTILE            0.001      0.010
 MAXIMUM                    0.001      0.010
 DATE OF MAXIMUM       1999-07-23 1999-07-23
 STANDARD DEVIATION         0.000      0.000





 STATION - BARRAGE SIDI MOHAMED B ABDELLA           STATION NO. 077002
 COUNTRY - MAROC                                    DEPTH(M)       0.2
 LOCATION - OCT. 0  LAT. 33/56/00  LONG. 006/45/00  ELEVATION(M)  48.2
 REGIONAL CENTRE - EMRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-02-03 TO 1999-04-19

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP      TRANS
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      02076
                            MEQ/L      MEQ/L      us/cm      deg C          m


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         12         32         34         31
 MEAN                       6.133      6.482       702.       19.2        6.6
 MINIMUM                    4.320      4.490       550.       13.1        0.8
 DATE OF MINIMUM       1997-02-03 1997-02-03 1998-08-04 1999-03-15 1997-02-03
 10TH PERCENTILE            4.376      4.522       598.       14.6        1.6
 MEDIAN                     6.355      6.920       705.       16.9        2.4
 90TH PERCENTILE            6.793      7.158       786.       26.1        3.0
 MAXIMUM                    7.050      7.580       825.       27.7       70.0
 DATE OF MAXIMUM       1997-07-28 1997-05-19 1997-05-19 1998-08-04 1998-01-19
 STANDARD DEVIATION         0.861      0.974        68.        4.5       16.9




                         CHLORO A     NO3NO2        NH3    PERCENT         O2
                                                            DO SAT       DISS
                            06711      07105      07556      08001      08101
                             mg/L     mg/L N     mg/L N    PERCENT    mg/L O2


 NO. OF L-FLAGGED VALUES        1          3          4          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9         29         26         33         34
 MEAN                      3.5000       9.53       0.12        63.        5.5
 MINIMUM                   0.5000       0.07       0.01         0.        0.0
 DATE OF MINIMUM       1997-10-21 1998-07-11 1997-04-14 1998-08-04 1998-08-04
 10TH PERCENTILE           0.5000       0.39       0.01         3.        0.1
 MEDIAN                    2.6500       8.05       0.07        80.        7.4
 90TH PERCENTILE           6.5000      21.19       0.28       112.        9.7
 MAXIMUM                   7.8000      24.96       0.43       121.       10.1
 DATE OF MAXIMUM       1998-06-15 1997-04-14 1998-11-09 1997-08-25 1997-06-09
 STANDARD DEVIATION        2.6445       7.70       0.11        46.        4.0




                              BOD          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            08201      09105      10102      10301      10401
                          mg/L O2     mg/L F       mg/L   pH UNITS       mg/L


 NO. OF L-FLAGGED VALUES        2          0          0          0         27
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         34         16         34          6
 MEAN                          2.        0.2     133.12        8.2        12.
 MINIMUM                       0.        0.0     110.00        7.6        10.
 DATE OF MINIMUM       1997-07-28 1998-01-19 1998-09-28 1998-06-15 1997-04-14
 10TH PERCENTILE               0.        0.1     113.00        7.6        10.
 MEDIAN                        2.        0.2     127.50        7.8        10.
 90TH PERCENTILE               3.        0.3     160.00        9.0        10.
 MAXIMUM                       3.        0.3     165.00        9.4        45.
 DATE OF MAXIMUM       1997-06-09 1997-08-25 1998-05-18 1998-11-09 1998-01-19
 STANDARD DEVIATION            1.        0.1      18.18        0.6         8.




                               Na         Mg         Al         Si          P
                             DISS       DISS      TOTAL   REACTIVE      TOTAL
                            11105      12102      13002      14101      15405
                          mg/L Na    mg/L Mg    mg/L Al   mg/LSiO2     mg/L P


 NO. OF L-FLAGGED VALUES        0          0          1          0         22
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       32         29         17          2         10
 MEAN                         54.        42.      0.179       8.90      0.228
 MINIMUM                      21.        10.      0.010                 0.042
 DATE OF MINIMUM       1998-05-18 1997-02-03 1997-04-14            1999-03-15
 10TH PERCENTILE              34.        15.      0.017                 0.122
 MEDIAN                       54.        29.      0.100                 0.200
 90TH PERCENTILE              70.        76.      0.331                 0.218
 MAXIMUM                      75.       141.      0.690                 1.200
 DATE OF MAXIMUM       1998-07-21 1998-07-11 1997-08-25            1998-04-29
 STANDARD DEVIATION           13.        30.      0.197                 0.185




                         SULPHATE   SULPHATE         Cl        DDT    LINDANE
                                                   DISS      TOTAL           
                            16302      16304      17201      18002      18070
                         mg/L SO4   mg/L SO4    mg/L Cl       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0          0          6          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       30          4         34          0          0
 MEAN                         70.        60.        98.      0.003      0.001
 MINIMUM                      36.        58.        53.      0.003      0.001
 DATE OF MINIMUM       1997-02-03 1999-04-19 1997-02-03 1997-02-03 1997-02-03
 10TH PERCENTILE              44.                   76.                      
 MEDIAN                       69.        59.        94.      0.003      0.001
 90TH PERCENTILE              77.                  121.                      
 MAXIMUM                     179.        64.       192.      0.003      0.001
 DATE OF MAXIMUM       1998-05-18 1999-03-15 1998-07-21 1998-06-15 1998-06-15
 STANDARD DEVIATION           25.         3.        24.      0.000      0.000




                           ALDRIN   DIELDRIN          K         Ca         Ca
                                                   DISS       DISS       DISS
                            18130      18150      19105      20101      20105
                             ug/L       ug/L     mg/L K    mg/L Ca    mg/L Ca


 NO. OF L-FLAGGED VALUES        6          6          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0         32         30          4
 MEAN                       0.001      0.002        3.5     48.107     36.800
 MINIMUM                    0.001      0.002        1.2     25.600      5.600
 DATE OF MINIMUM       1997-02-03 1997-02-03 1997-04-14 1997-10-21 1999-03-15
 10TH PERCENTILE                                    2.8     33.600           
 MEDIAN                     0.001      0.002        3.4     46.000     45.200
 90TH PERCENTILE                                    4.3     62.400           
 MAXIMUM                    0.001      0.002        5.1    107.000     51.200
 DATE OF MAXIMUM       1998-06-15 1998-06-15 1997-02-03 1998-08-04 1999-04-19
 STANDARD DEVIATION         0.000      0.000        0.7     15.273     21.055




                               Cr         Mn         Fe         Fe         Cu
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            24002      25004      26002      26004      29001
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES       13          8          3          8          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4         14          3          8          0
 MEAN                       0.002       0.19       0.09       0.08      0.010
 MINIMUM                    0.001       0.01       0.05       0.00      0.010
 DATE OF MINIMUM       1997-04-14 1997-02-03 1998-05-18 1997-07-28 1997-07-28
 10TH PERCENTILE            0.001       0.01                  0.03           
 MEDIAN                     0.001       0.02       0.05       0.05      0.010
 90TH PERCENTILE            0.005       0.52                  0.13           
 MAXIMUM                    0.009       1.10       0.21       0.36      0.010
 DATE OF MAXIMUM       1997-08-25 1998-11-09 1998-11-09 1997-02-03 1997-10-21
 STANDARD DEVIATION         0.002       0.30       0.06       0.08      0.000




                               Cu         Zn         As         Se   COLIFORM
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            29006      30004      33007      34002      36001
                          mg/L Cu    mg/L Zn    mg/L As    mg/L Se   No/100ml


 NO. OF L-FLAGGED VALUES       13          9         15         17          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          1
 NO. OF UNFLAGGED VALUES        2         13          3          1         15
 MEAN                       0.037      0.027      0.011      0.005       367.
 MINIMUM                    0.010      0.010      0.005      0.002         0.
 DATE OF MINIMUM       1997-02-03 1997-04-14 1997-02-03 1999-03-15 1997-02-03
 10TH PERCENTILE            0.010      0.010      0.005      0.002         0.
 MEDIAN                     0.010      0.015      0.005      0.005         6.
 90TH PERCENTILE            0.020      0.058      0.005      0.005       496.
 MAXIMUM                    0.390      0.120      0.110      0.005      4600.
 DATE OF MAXIMUM       1998-05-18 1997-08-25 1998-11-09 1998-11-09 1997-02-03
 STANDARD DEVIATION         0.098      0.027      0.025      0.001      1161.




                         FAEC COL         Cd         Pb
                                       TOTAL      TOTAL
                            36011      48001      82001
                         No/100ml    mg/L Cd    mg/L Pb


 NO. OF L-FLAGGED VALUES        0         14         17
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES       18          4          1
 MEAN                         76.      0.001      0.011
 MINIMUM                       0.      0.001      0.010
 DATE OF MINIMUM       1997-02-03 1997-04-14 1997-02-03
 10TH PERCENTILE               0.      0.001      0.010
 MEDIAN                        2.      0.001      0.010
 90TH PERCENTILE              99.      0.001      0.010
 MAXIMUM                    1100.      0.004      0.030
 DATE OF MAXIMUM       1997-10-21 1997-04-14 1997-02-03
 STANDARD DEVIATION          259.      0.001      0.005





 STATION - BARRAGE AL MASSIRA                       STATION NO. 077003
 COUNTRY - MAROC                                    DEPTH(M)       0.2
 LOCATION - OCT. 0  LAT. 33/15/00  LONG. 007/30/00  ELEVATION(M) 271.0
 REGIONAL CENTRE - EMRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-01-08 TO 1999-05-05

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP      TRANS
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      02076
                            MEQ/L      MEQ/L      us/cm      deg C          m


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       12         12         28         28         26
 MEAN                      10.351     10.583      1237.       17.5        2.6
 MINIMUM                    9.490      9.650       990.       13.1        1.4
 DATE OF MINIMUM       1997-02-21 1997-03-21 1997-01-08 1998-02-05 1998-02-05
 10TH PERCENTILE            9.606      9.720      1038.       14.2        1.9
 MEDIAN                    10.225     10.495      1255.       16.2        2.8
 90TH PERCENTILE           10.725     11.177      1382.       22.6        3.0
 MAXIMUM                   11.490     11.900      1440.       25.5        3.0
 DATE OF MAXIMUM       1997-11-20 1997-11-20 1999-05-05 1998-08-26 1997-11-20
 STANDARD DEVIATION         0.493      0.621       122.        3.3        0.4




                         CHLORO A     NO3NO2        NH3    PERCENT         O2
                                                            DO SAT       DISS
                            06711      07105      07556      08001      08101
                             mg/L     mg/L N     mg/L N    PERCENT    mg/L O2


 NO. OF L-FLAGGED VALUES        4          0          4          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6         28         20         27         28
 MEAN                      3.2100       5.73       0.06        72.        9.2
 MINIMUM                   0.5000       1.05       0.01         0.        0.0
 DATE OF MINIMUM       1997-01-08 1997-09-28 1997-02-21 1998-08-26 1998-08-26
 10TH PERCENTILE           0.5000       2.31       0.01        10.        1.0
 MEDIAN                    0.9500       5.59       0.04        78.        7.9
 90TH PERCENTILE           5.1000       8.82       0.15       102.        9.4
 MAXIMUM                  19.6000      12.02       0.31       113.       65.0
 DATE OF MAXIMUM       1998-06-11 1998-12-16 1997-09-28 1997-02-21 1998-06-11
 STANDARD DEVIATION        5.9306       2.86       0.07        32.       11.3




                              BOD          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            08201      09105      10102      10301      10401
                          mg/L O2     mg/L F       mg/L   pH UNITS       mg/L


 NO. OF L-FLAGGED VALUES        1          0          0          0         25
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11         28         10         28          3
 MEAN                          3.        0.2     143.00        8.1        10.
 MINIMUM                       0.        0.1     127.50        7.6         0.
 DATE OF MINIMUM       1997-09-28 1998-12-16 1998-02-05 1998-08-26 1999-05-05
 10TH PERCENTILE               1.        0.1     127.50        7.8        10.
 MEDIAN                        3.        0.2     142.50        8.2        10.
 90TH PERCENTILE               3.        0.3     155.00        8.5        10.
 MAXIMUM                       4.        0.6     160.00        8.5        27.
 DATE OF MAXIMUM       1997-02-21 1997-07-04 1998-12-16 1998-06-11 1998-02-05
 STANDARD DEVIATION            1.        0.1      10.79        0.3         4.





                               Na         Mg         Al         Si          P
                             DISS       DISS      TOTAL   REACTIVE      TOTAL
                            11105      12102      13002      14101      15405
                          mg/L Na    mg/L Mg    mg/L Al   mg/LSiO2     mg/L P


 NO. OF L-FLAGGED VALUES        0          0          2          0         22
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       25         23         18          2          6
 MEAN                        123.        50.      0.072       7.50      0.340
 MINIMUM                      43.        10.      0.010                 0.011
 DATE OF MINIMUM       1998-06-11 1997-02-21 1997-01-08            1999-05-05
 10TH PERCENTILE              80.        21.      0.010                 0.080
 MEDIAN                      120.        33.      0.055                 0.200
 90TH PERCENTILE             150.        91.      0.120                 0.200
 MAXIMUM                     170.       116.      0.270                 2.500
 DATE OF MAXIMUM       1998-12-16 1998-06-11 1998-12-16            1998-02-05
 STANDARD DEVIATION           28.        31.      0.069                 0.598




                         SULPHATE   SULPHATE         Cl         Cl        DDT
                                                   DISS       DISS      TOTAL
                            16302      16304      17201      17204      18002
                         mg/L SO4   mg/L SO4    mg/L Cl    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       23          4         26          1          0
 MEAN                         89.       116.       225.       223.      0.003
 MINIMUM                      75.       112.       149.                 0.003
 DATE OF MINIMUM       1997-02-21 1999-05-05 1997-01-08            1997-01-08
 10TH PERCENTILE              80.                  169.                 0.003
 MEDIAN                       89.       116.       225.                 0.003
 90TH PERCENTILE             100.                  284.                 0.003
 MAXIMUM                     105.       121.       291.                 0.003
 DATE OF MAXIMUM       1998-08-26 1999-03-05 1999-03-05            1999-05-05
 STANDARD DEVIATION            8.         4.        43.                 0.000




                          LINDANE     ALDRIN   DIELDRIN          K         Ca
                                                              DISS       DISS
                            18070      18130      18150      19105      20101
                             ug/L       ug/L       ug/L     mg/L K    mg/L Ca


 NO. OF L-FLAGGED VALUES       12         12         12          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0         26         23
 MEAN                       0.001      0.001      0.002        3.8     62.278
 MINIMUM                    0.001      0.001      0.002        2.9     39.200
 DATE OF MINIMUM       1997-01-08 1997-01-08 1997-01-08 1997-01-08 1998-08-26
 10TH PERCENTILE            0.001      0.001      0.002        3.0     42.800
 MEDIAN                     0.001      0.001      0.002        3.6     56.000
 90TH PERCENTILE            0.001      0.001      0.002        4.3     82.880
 MAXIMUM                    0.001      0.001      0.002        5.6    120.000
 DATE OF MAXIMUM       1999-05-05 1999-05-05 1999-05-05 1997-05-08 1998-12-16
 STANDARD DEVIATION         0.000      0.000      0.000        0.6     19.165




                               Ca         Cr         Mn         Fe         Fe
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            20105      24002      25004      26002      26004
                          mg/L Ca    mg/L Cr    mg/L Mn    mg/L Fe    mg/L Fe


 NO. OF L-FLAGGED VALUES        0         17          6          6          4
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          3         16          0         12
 MEAN                      63.200      0.001       0.02       0.05       0.09
 MINIMUM                   54.400      0.001       0.01       0.05       0.05
 DATE OF MINIMUM       1999-05-05 1997-01-08 1997-02-21 1998-04-02 1997-02-21
 10TH PERCENTILE                       0.001       0.01                  0.05
 MEDIAN                    62.400      0.001       0.01       0.05       0.05
 90TH PERCENTILE                       0.001       0.04                  0.20
 MAXIMUM                   73.600      0.003       0.14       0.05       0.21
 DATE OF MAXIMUM       1999-03-05 1997-01-08 1997-09-28 1998-12-16 1997-09-28
 STANDARD DEVIATION         9.466      0.001       0.03       0.00       0.06




                               Cu         Cu         Zn         As         Se
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            29001      29006      30004      33007      34002
                          mg/L Cu    mg/L Cu    mg/L Zn    mg/L As    mg/L Se


 NO. OF L-FLAGGED VALUES       12          7         10         19         20
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1         12          1          0
 MEAN                       0.011      0.010      0.029      0.005      0.005
 MINIMUM                    0.010      0.010      0.010      0.005      0.005
 DATE OF MINIMUM       1997-01-08 1998-04-02 1997-01-08 1997-01-08 1997-01-08
 10TH PERCENTILE            0.010                 0.010      0.005      0.005
 MEDIAN                     0.010      0.010      0.010      0.005      0.005
 90TH PERCENTILE            0.010                 0.028      0.005      0.005
 MAXIMUM                    0.020      0.010      0.310      0.006      0.005
 DATE OF MAXIMUM       1997-11-20 1999-03-05 1997-07-04 1997-09-28 1999-03-05
 STANDARD DEVIATION         0.003      0.000      0.063      0.000      0.000




                         COLIFORM   FAEC COL         Cd         Pb
                            TOTAL                 TOTAL      TOTAL
                            36001      36011      48001      82001
                         No/100ml   No/100ml    mg/L Cd    mg/L Pb


 NO. OF L-FLAGGED VALUES        0          0         18         20
 NO. OF G-FLAGGED VALUES        1          0          0          0
 NO. OF UNFLAGGED VALUES       17         20          2          0
 MEAN                        239.        58.      0.001      0.010
 MINIMUM                       4.         0.      0.001      0.010
 DATE OF MINIMUM       1997-09-28 1997-07-04 1997-01-08 1997-01-08
 10TH PERCENTILE              13.         0.      0.001      0.010
 MEDIAN                      210.         6.      0.001      0.010
 90TH PERCENTILE             460.       210.      0.001      0.010
 MAXIMUM                    1100.       460.      0.001      0.010
 DATE OF MAXIMUM       1997-02-21 1997-11-20 1997-01-08 1999-03-05
 STANDARD DEVIATION          275.       117.      0.000      0.000





 STATION - PUITS MAMORA IRE 442/13                  STATION NO. 077004
 COUNTRY - MAROC                                    DEPTH(M)       5.1
 LOCATION - OCT. 0  LAT. 34/00/00  LONG. 006/00/00  ELEVATION(M)   4.2
 REGIONAL CENTRE - EMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-01-23 TO 1999-06-17

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF      INTEG       ELEC       TEMP
                          CATIONS     ANIONS     SAMPLE       COND           
                            00120      00125      00190      02041      02061
                            MEQ/L      MEQ/L        N/A      us/cm      deg C


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          1          8          8
 MEAN                       4.330      4.380         3.       685.       20.7
 MINIMUM                                                      586.       18.0
 DATE OF MINIMUM                                        1997-07-14 1998-01-09
 10TH PERCENTILE                                                             
 MEDIAN                                                       652.       21.0
 90TH PERCENTILE                                                             
 MAXIMUM                                                      980.       22.0
 DATE OF MAXIMUM                                        1997-06-20 1999-06-17
 STANDARD DEVIATION                                           128.        1.4




                           NO3NO2        NH3    PERCENT         O2          F
                                                 DO SAT       DISS       DISS
                            07105      07555      08001      08101      09105
                           mg/L N     mg/L N    PERCENT    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        7          2          5          8          7
 MEAN                       32.33       0.15        56.        4.8        0.1
 MINIMUM                    12.30       0.00        26.        2.3        0.1
 DATE OF MINIMUM       1998-01-09 1997-01-23 1998-01-09 1997-01-23 1997-11-03
 10TH PERCENTILE                                                             
 MEDIAN                     34.61       0.04        66.        5.3        0.1
 90TH PERCENTILE                                                             
 MAXIMUM                    40.23       0.37        76.        6.9        0.2
 DATE OF MAXIMUM       1997-06-20 1997-06-20 1997-07-14 1998-12-14 1998-01-09
 STANDARD DEVIATION          9.38       0.17        23.        1.9        0.0




                              ALK         pH         Na         Mg         Al
                            TOTAL                  DISS       DISS      TOTAL
                            10102      10301      11105      12102      13002
                             mg/L   pH UNITS    mg/L Na    mg/L Mg    mg/L Al


 NO. OF L-FLAGGED VALUES        0          0          0          0          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        8          8          7          4          5
 MEAN                      213.52        7.3        37.        21.      0.123
 MINIMUM                    30.00        7.0        32.         7.      0.000
 DATE OF MINIMUM       1998-12-14 1997-07-14 1997-04-08 1997-04-08 1997-07-14
 10TH PERCENTILE                                                             
 MEDIAN                    297.50        7.2        38.        15.      0.020
 90TH PERCENTILE                                                             
 MAXIMUM                   330.00        7.4        42.        45.      0.570
 DATE OF MAXIMUM       1997-07-14 1998-01-09 1997-11-03 1997-01-23 1997-04-08
 STANDARD DEVIATION        134.97        0.2         4.        17.      0.207




                               Si   SULPHATE   SULPHATE         Cl          K
                         REACTIVE                             DISS       DISS
                            14101      16302      16304      17201      19105
                         mg/LSiO2   mg/L SO4   mg/L SO4    mg/L Cl     mg/L K


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          6          7          7
 MEAN                       26.00         9.         9.        63.        1.8
 MINIMUM                                             7.        57.        0.9
 DATE OF MINIMUM                             1997-01-23 1997-01-23 1997-04-08
 10TH PERCENTILE                                                             
 MEDIAN                                              9.        63.        1.2
 90TH PERCENTILE                                                             
 MAXIMUM                                            12.        66.        4.7
 DATE OF MAXIMUM                             1997-06-20 1997-06-20 1999-06-17
 STANDARD DEVIATION                                  2.         4.        1.3




                               Ca         Cr         Mn         Fe         Cu
                             DISS      TOTAL      TOTAL      TOTAL      TOTAL
                            20105      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          5          4          5          5
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        7          2          3          2          2
 MEAN                      88.486      0.000       0.01       0.02      0.000
 MINIMUM                   40.100      0.000       0.00       0.00      0.000
 DATE OF MINIMUM       1999-06-17 1997-06-20 1997-01-23 1997-07-14 1997-01-23
 10TH PERCENTILE                                                             
 MEDIAN                   102.000      0.000       0.01       0.03      0.000
 90TH PERCENTILE                                                             
 MAXIMUM                  112.000      0.001       0.02       0.05      0.000
 DATE OF MAXIMUM       1997-04-08 1997-04-08 1997-07-14 1997-01-23 1999-06-17
 STANDARD DEVIATION        30.583      0.001       0.01       0.02      0.000




                               Zn         As         Se   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL      TOTAL           
                            30004      33007      34002      36001      36011
                          mg/L Zn    mg/L As    mg/L Se   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        4          6          4          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          1          3          7          7
 MEAN                       0.044      0.001      0.001         0.         0.
 MINIMUM                    0.000      0.000      0.000         0.         0.
 DATE OF MINIMUM       1997-04-08 1997-01-23 1997-01-23 1997-01-23 1997-01-23
 10TH PERCENTILE                                                             
 MEDIAN                     0.020      0.000      0.000         0.         0.
 90TH PERCENTILE                                                             
 MAXIMUM                    0.150      0.005      0.005         0.         0.
 DATE OF MAXIMUM       1997-01-23 1999-06-17 1998-01-09 1999-06-17 1999-06-17
 STANDARD DEVIATION         0.055      0.002      0.002         0.         0.





                               Cd         Pb
                            TOTAL      TOTAL
                            48001      82001
                          mg/L Cd    mg/L Pb


 NO. OF L-FLAGGED VALUES        6          6
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        1          1
 MEAN                       0.000      0.001
 MINIMUM                    0.000      0.000
 DATE OF MINIMUM       1997-01-23 1997-01-23
 10TH PERCENTILE                            
 MEDIAN                     0.000      0.000
 90TH PERCENTILE                            
 MAXIMUM                    0.001      0.010
 DATE OF MAXIMUM       1999-06-17 1999-06-17
 STANDARD DEVIATION         0.000      0.004





 STATION - PUITS ARTESIEN IRE 4/125                 STATION NO. 077005
 COUNTRY - MAROC                                    DEPTH(M)     500.0
 LOCATION - OCT. 0  LAT. 23/42/00  LONG. 015/55/00  ELEVATION(M) 433.5
 REGIONAL CENTRE - EMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-10-31 TO 1999-09-24

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF      INTEG       ELEC       TEMP
                          CATIONS     ANIONS     SAMPLE       COND           
                            00120      00125      00190      02041      02061
                            MEQ/L      MEQ/L        N/A      us/cm      deg C


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          2          2          6          6
 MEAN                      27.065     28.515         3.      3165.       34.3
 MINIMUM                                                     2910.       33.5
 DATE OF MINIMUM                                        1999-09-24 1998-06-04
 10TH PERCENTILE                                                             
 MEDIAN                                                      3210.       34.2
 90TH PERCENTILE                                                             
 MAXIMUM                                                     3340.       35.0
 DATE OF MAXIMUM                                        1998-01-24 1999-09-24
 STANDARD DEVIATION                                           177.        0.6




                           NO3NO2        NH3    PERCENT         O2          F
                                                 DO SAT       DISS       DISS
                            07105      07555      08001      08101      09105
                           mg/L N     mg/L N    PERCENT    mg/L O2     mg/L F


 NO. OF L-FLAGGED VALUES        2          1          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          5          6          5
 MEAN                        0.02       2.52        39.        2.9        0.6
 MINIMUM                     0.00       2.00        17.        1.2        0.3
 DATE OF MINIMUM       1998-01-24 1998-01-24 1999-09-24 1999-09-24 1999-06-13
 10TH PERCENTILE                                                             
 MEDIAN                      0.00       2.40        39.        3.1        0.5
 90TH PERCENTILE                                                             
 MAXIMUM                     0.05       3.30        53.        3.8        0.9
 DATE OF MAXIMUM       1999-09-24 1997-10-31 1999-06-13 1999-06-13 1999-09-24
 STANDARD DEVIATION          0.03       0.57        14.        1.1        0.2




                              ALK         pH         Na         Al         Si
                            TOTAL                  DISS      TOTAL   REACTIVE
                            10102      10301      11105      13002      14101
                             mg/L   pH UNITS    mg/L Na    mg/L Al   mg/LSiO2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          6          6          5          2
 MEAN                      126.10        7.2       453.      0.870      30.50
 MINIMUM                    19.20        7.1       310.      0.090           
 DATE OF MINIMUM       1998-06-04 1998-06-04 1999-06-13 1998-01-24           
 10TH PERCENTILE                                                             
 MEDIAN                    115.80        7.2       415.      0.250           
 90TH PERCENTILE                                                             
 MAXIMUM                   256.00        7.3       780.      3.100           
 DATE OF MAXIMUM       1997-10-31 1999-09-24 1998-01-24 1999-09-24           
 STANDARD DEVIATION        116.92        0.1       171.      1.274           




                         SULPHATE   SULPHATE         Cl          K         Ca
                                                   DISS       DISS       DISS
                            16302      16304      17201      19105      20105
                         mg/L SO4   mg/L SO4    mg/L Cl     mg/L K    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          4          5          3          6
 MEAN                        146.       250.       745.       34.4    149.183
 MINIMUM                                217.       710.               115.000
 DATE OF MINIMUM                  1997-10-31 1999-06-13            1998-06-04
 10TH PERCENTILE                                                             
 MEDIAN                                 242.       745.               149.000
 90TH PERCENTILE                                                             
 MAXIMUM                                298.       781.               176.000
 DATE OF MAXIMUM                  1998-06-04 1999-09-24            1998-10-23
 STANDARD DEVIATION                      34.        33.                23.544




                               Cr         Mn         Fe         Fe         Cu
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            24002      25004      26002      26004      29006
                          mg/L Cr    mg/L Mn    mg/L Fe    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES        1          0          0          2          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          6          1          3          3
 MEAN                       0.012       0.01       0.09       0.17      0.000
 MINIMUM                    0.000       0.00                  0.05      0.000
 DATE OF MINIMUM       1998-06-04 1999-06-13            1999-06-13 1998-01-24
 10TH PERCENTILE                                                             
 MEDIAN                     0.001       0.01                  0.16      0.000
 90TH PERCENTILE                                                             
 MAXIMUM                    0.066       0.02                  0.32      0.000
 DATE OF MAXIMUM       1998-01-24 1998-06-04            1998-01-24 1999-09-24
 STANDARD DEVIATION         0.027       0.01                  0.12      0.000




                               Zn         As         Se   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL      TOTAL           
                            30004      33007      34002      36001      36011
                          mg/L Zn    mg/L As    mg/L Se   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        1          5          2          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5          1          4          5          5
 MEAN                       0.015      0.004      0.000         6.         3.
 MINIMUM                    0.000      0.001      0.000         0.         0.
 DATE OF MINIMUM       1997-10-31 1998-10-23 1998-01-24 1998-01-24 1998-01-24
 10TH PERCENTILE                                                             
 MEDIAN                     0.000      0.004      0.000         0.         0.
 90TH PERCENTILE                                                             
 MAXIMUM                    0.050      0.006      0.002        28.        15.
 DATE OF MAXIMUM       1998-06-04 1998-06-04 1997-10-31 1999-09-24 1999-09-24
 STANDARD DEVIATION         0.023      0.002      0.001        13.         7.




                               Cd         Pb
                            TOTAL      TOTAL
                            48001      82001
                          mg/L Cd    mg/L Pb


 NO. OF L-FLAGGED VALUES        4          4
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        2          2
 MEAN                       0.001      0.006
 MINIMUM                    0.000      0.000
 DATE OF MINIMUM       1998-01-24 1998-01-24
 10TH PERCENTILE                            
 MEDIAN                     0.001      0.007
 90TH PERCENTILE                            
 MAXIMUM                    0.006      0.012
 DATE OF MAXIMUM       1997-10-31 1999-09-24
 STANDARD DEVIATION         0.002      0.005





 STATION - SUR OUED SEBOU A KENITRA                 STATION NO. 077006
 COUNTRY - MAROC                                    DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 34/16/40  LONG. 006/34/02  ELEVATION(M)   0.0
 REGIONAL CENTRE - EMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-01-09 TO 1999-12-16

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP          B   HYDROCAR     NO3NO2
                             COND                 TOTAL      TOTAL           
                            02041      02061      05001      06570      07105
                            us/cm      deg C     mg/L B       ug/L     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         10          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       31         21         17          7         13
 MEAN                       3137.       21.3        0.2      267.0      10.03
 MINIMUM                     520.       14.0        0.0       10.0       0.52
 DATE OF MINIMUM       1997-01-09 1997-01-09 1998-01-07 1999-01-28 1999-10-26
 10TH PERCENTILE             781.       15.0        0.0       10.0       0.52
 MEDIAN                     1480.       21.0        0.2       30.0       6.56
 90TH PERCENTILE            5511.       28.5        0.5      890.0      17.66
 MAXIMUM                   23600.       31.0        1.6      970.0      54.50
 DATE OF MAXIMUM       1997-08-21 1999-07-06 1997-08-21 1999-07-06 1998-10-05
 STANDARD DEVIATION         4890.        5.4        0.3      396.6      14.41




                           ORG. N        NH3        NH3    PERCENT         O2
                             DISS                           DO SAT       DISS
                            07401      07506      07556      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        2          9         11         15         26
 MEAN                         0.9       0.20       0.24        63.        6.2
 MINIMUM                                0.06       0.06        32.        1.9
 DATE OF MINIMUM                  1998-11-17 1997-02-13 1997-10-07 1997-01-09
 10TH PERCENTILE                                   0.06        34.        3.4
 MEDIAN                                 0.13       0.19        61.        6.4
 90TH PERCENTILE                                   0.35        80.        8.3
 MAXIMUM                                0.53       1.03        86.        8.8
 DATE OF MAXIMUM                  1998-02-11 1997-08-21 1997-11-12 1998-11-17
 STANDARD DEVIATION                     0.17       0.27        17.        1.8




                              BOD        COD          F         pH   SUSP SOL
                                                   DISS               105 DEG
                            08201      08301      09105      10301      10401
                          mg/L O2    mg/L O2     mg/L F   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       28         29         28         31         31
 MEAN                          6.        38.        0.3        8.1       939.
 MINIMUM                       1.         5.        0.1        4.6        13.
 DATE OF MINIMUM       1998-05-05 1998-02-11 1998-10-05 1997-08-21 1998-11-17
 10TH PERCENTILE               1.        10.        0.2        7.7        21.
 MEDIAN                        3.        24.        0.3        8.2       110.
 90TH PERCENTILE              10.        87.        0.4        8.5      1042.
 MAXIMUM                      55.       140.        1.1        8.5     11000.
 DATE OF MAXIMUM       1997-12-10 1997-12-10 1999-08-19 1997-05-27 1998-02-11
 STANDARD DEVIATION           10.        36.        0.2        0.7      2483.




                               Na         Mg         Al          P    P TOTAL
                             DISS       DISS      TOTAL      TOTAL       DISS
                            11105      12102      13002      15405      15417
                          mg/L Na    mg/L Mg    mg/L Al     mg/L P     mg/L P


 NO. OF L-FLAGGED VALUES        0          0         13          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22         19         11         21          7
 MEAN                        435.        59.      3.301      0.644      1.456
 MINIMUM                      68.         0.      0.010      0.040      0.120
 DATE OF MINIMUM       1997-05-27 1997-03-06 1999-10-26 1997-09-23 1999-04-06
 10TH PERCENTILE              75.         0.      0.126      0.044           
 MEDIAN                      240.        23.      0.300      0.240      0.360
 90TH PERCENTILE             544.       139.      4.350      0.880           
 MAXIMUM                    3300.       399.     52.000      6.800      8.000
 DATE OF MAXIMUM       1997-08-21 1997-08-21 1998-02-11 1997-12-10 1999-12-16
 STANDARD DEVIATION          701.        96.     10.511      1.427      2.895




                         SULPHATE         Cl        DDT    LINDANE     ALDRIN
                                        DISS      TOTAL                      
                            16302      17201      18002      18070      18130
                         mg/L SO4    mg/L Cl       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0          0         12         11         12
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       30         29          0          1          0
 MEAN                        213.       989.      0.003      0.001      0.001
 MINIMUM                      22.        94.      0.003      0.001      0.001
 DATE OF MINIMUM       1999-08-19 1998-02-11 1997-01-09 1997-01-09 1997-01-09
 10TH PERCENTILE              61.       114.      0.003      0.001      0.001
 MEDIAN                      124.       259.      0.003      0.001      0.001
 90TH PERCENTILE             289.      3241.      0.003      0.001      0.001
 MAXIMUM                    2180.      5890.      0.003      0.002      0.001
 DATE OF MAXIMUM       1997-08-21 1997-08-21 1999-12-16 1997-04-30 1999-12-16
 STANDARD DEVIATION          384.      1653.      0.000      0.000      0.000




                         DIELDRIN       PCBS          K         Ca         Cr
                                                   DISS       DISS      TOTAL
                            18150      18165      19105      20101      24002
                             ug/L       ug/L     mg/L K    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        7          0          0          0         15
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          1         18          5         10
 MEAN                       0.002      0.130       17.9    103.800      0.044
 MINIMUM                    0.002                   4.4     76.000      0.001
 DATE OF MINIMUM       1999-04-06            1997-05-27 1999-10-26 1997-02-13
 10TH PERCENTILE                                    5.4                 0.001
 MEDIAN                     0.002                  14.4     90.000      0.017
 90TH PERCENTILE                                   22.7                 0.100
 MAXIMUM                    0.002                  89.4    141.000      0.100
 DATE OF MAXIMUM       1999-12-16            1999-03-11 1999-12-16 1998-11-17
 STANDARD DEVIATION         0.000                  19.2     27.087      0.047




                               Mn         Fe         Ni         Cu         Zn
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            25004      26002      28001      29006      30004
                          mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES       12          7         23         18         13
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       14         23          8         13         17
 MEAN                        0.45       3.77      0.072      0.020      0.072
 MINIMUM                     0.01       0.33      0.050      0.000      0.010
 DATE OF MINIMUM       1998-03-24 1999-03-11 1997-02-13 1997-07-29 1997-07-29
 10TH PERCENTILE             0.01       0.50      0.050      0.001      0.010
 MEDIAN                      0.05       1.30      0.050      0.010      0.024
 90TH PERCENTILE             0.45       7.40      0.124      0.038      0.170
 MAXIMUM                     5.20      34.00      0.390      0.140      0.800
 DATE OF MAXIMUM       1997-12-10 1998-02-11 1997-08-21 1998-02-11 1999-03-11
 STANDARD DEVIATION          1.22       6.93      0.068      0.031      0.151




                               As         Se   COLIFORM   FAEC COL         Cd
                            TOTAL      TOTAL      TOTAL                 TOTAL
                            33007      34002      36001      36011      48001
                          mg/L As    mg/L Se   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES       20         24          0          0         24
 NO. OF G-FLAGGED VALUES        0          0          2          0          0
 NO. OF UNFLAGGED VALUES        3          1         28         30          1
 MEAN                       0.009      0.006    2.3E+04    1.5E+04      0.001
 MINIMUM                    0.000      0.005    2.4E+02    9.0E+00      0.001
 DATE OF MINIMUM       1997-07-29 1997-02-13 1998-11-17 1998-11-17 1997-01-09
 10TH PERCENTILE            0.005      0.005    1.1E+03    2.3E+02      0.001
 MEDIAN                     0.005      0.005    1.1E+04    3.4E+03      0.001
 90TH PERCENTILE            0.005      0.005    1.1E+05    2.4E+04      0.001
 MAXIMUM                    0.100      0.020    1.1E+05    1.5E+05      0.003
 DATE OF MAXIMUM       1998-02-11 1997-01-09 1999-12-16 1997-02-13 1997-02-13
 STANDARD DEVIATION         0.020      0.003    3.6E+04    3.3E+04      0.000




                               Ba         Pb    PHENOLS
                            TOTAL      TOTAL           
                            80011      82001      95011
                          ug/L Hg    mg/L Pb       ug/L


 NO. OF L-FLAGGED VALUES       22         24          6
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        3          1         16
 MEAN                       0.300      0.078       14.2
 MINIMUM                    0.000      0.010        0.0
 DATE OF MINIMUM       1997-07-29 1999-04-06 1997-07-29
 10TH PERCENTILE            0.001      0.010        0.0
 MEDIAN                     0.001      0.100        5.0
 90TH PERCENTILE            1.000      0.100       30.4
 MAXIMUM                    1.200      0.180       91.0
 DATE OF MAXIMUM       1999-01-28 1998-01-07 1997-02-13
 STANDARD DEVIATION         0.469      0.046       20.7





 STATION - SUR L'ESTUAIRE DE LA MOULOUYA            STATION NO. 077007
 COUNTRY - MAROC                                    DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 34/09/00  LONG. 002/27/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - EMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-03-17 TO 1999-04-02

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                                B   HYDROCAR     NO3NO2     ORG. N        NH3
                            TOTAL      TOTAL                  DISS           
                            05001      06570      07105      07401      07506
                           mg/L B       ug/L     mg/L N     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        3          1          0          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          0          2          2          2
 MEAN                         0.1       50.0      15.49        0.7       0.10
 MINIMUM                      0.0                                            
 DATE OF MINIMUM       1997-10-27                                            
 10TH PERCENTILE                                                             
 MEDIAN                       0.0                                            
 90TH PERCENTILE                                                             
 MAXIMUM                      0.6                                            
 DATE OF MAXIMUM       1997-09-22                                            
 STANDARD DEVIATION           0.2                                            




                              NH3   SUSP SOL         Na         Al          P
                                     105 DEG       DISS      TOTAL      TOTAL
                            07556      10401      11105      13002      15405
                           mg/L N       mg/L    mg/L Na    mg/L Al     mg/L P


 NO. OF L-FLAGGED VALUES        0          0          0          5          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        5         10          6          1          9
 MEAN                        0.24        66.       430.      0.305      0.696
 MINIMUM                     0.04        24.       170.      0.300      0.030
 DATE OF MINIMUM       1997-07-28 1997-07-28 1998-02-23 1997-03-17 1997-03-17
 10TH PERCENTILE                         24.                                 
 MEDIAN                      0.09        44.       525.      0.300      0.076
 90TH PERCENTILE                        120.                                 
 MAXIMUM                     0.74       170.       630.      0.330      4.000
 DATE OF MAXIMUM       1997-03-17 1997-09-22 1997-09-22 1999-04-02 1997-12-22
 STANDARD DEVIATION          0.29        48.       205.      0.012      1.339




                              DDT    LINDANE     ALDRIN          K         Cr
                            TOTAL                             DISS      TOTAL
                            18002      18070      18130      19105      24002
                             ug/L       ug/L       ug/L     mg/L K    mg/L Cr


 NO. OF L-FLAGGED VALUES        2          2          2          0          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0          8          1
 MEAN                       0.003      0.001      0.001       10.3      0.102
 MINIMUM                                                       5.8      0.001
 DATE OF MINIMUM                                        1999-04-02 1997-03-17
 10TH PERCENTILE                                                             
 MEDIAN                                                       10.5      0.009
 90TH PERCENTILE                                                             
 MAXIMUM                                                      16.0      0.500
 DATE OF MAXIMUM                                        1997-09-22 1998-05-26
 STANDARD DEVIATION                                            3.2      0.182




                               Mn         Fe         Ni         Cu         Zn
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            25004      26002      28001      29006      30004
                          mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu    mg/L Zn


 NO. OF L-FLAGGED VALUES        1          1          9          4          2
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        9          7          1          5          7
 MEAN                        0.05       0.68      0.050      0.010      0.016
 MINIMUM                     0.01       0.33      0.050      0.000      0.000
 DATE OF MINIMUM       1998-09-30 1997-10-27 1997-03-17 1997-07-28 1997-07-28
 10TH PERCENTILE             0.01                 0.050                      
 MEDIAN                      0.04       0.53      0.050      0.010      0.020
 90TH PERCENTILE             0.08                 0.050                      
 MAXIMUM                     0.10       1.80      0.050      0.050      0.030
 DATE OF MAXIMUM       1997-09-22 1997-09-22 1999-04-02 1997-03-17 1998-02-23
 STANDARD DEVIATION          0.03       0.47      0.000      0.016      0.009




                               As         Se   COLIFORM   FAEC COL         Cd
                            TOTAL      TOTAL      TOTAL                 TOTAL
                            33007      34002      36001      36011      48001
                          mg/L As    mg/L Se   No/100ml   No/100ml    mg/L Cd


 NO. OF L-FLAGGED VALUES        5          4          0          0          6
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          2          1          1          0
 MEAN                       0.005      0.006      4600.      1500.      0.001
 MINIMUM                    0.005      0.005                            0.001
 DATE OF MINIMUM       1997-03-17 1997-05-27                       1997-03-17
 10TH PERCENTILE                                                             
 MEDIAN                     0.005      0.005                            0.001
 90TH PERCENTILE                                                             
 MAXIMUM                    0.005      0.009                            0.001
 DATE OF MAXIMUM       1999-04-02 1997-03-17                       1999-04-02
 STANDARD DEVIATION         0.000      0.002                            0.000




                               Ba         Pb    PHENOLS
                            TOTAL      TOTAL           
                            80011      82001      95011
                          ug/L Hg    mg/L Pb       ug/L


 NO. OF L-FLAGGED VALUES        3          6          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        6          0          6
 MEAN                       0.001      0.100        6.7
 MINIMUM                    0.000      0.100        0.0
 DATE OF MINIMUM       1997-07-28 1997-03-17 1997-07-28
 10TH PERCENTILE                                       
 MEDIAN                     0.000      0.100        0.0
 90TH PERCENTILE                                       
 MAXIMUM                    0.002      0.100       28.0
 DATE OF MAXIMUM       1997-03-17 1999-04-02 1997-09-22
 STANDARD DEVIATION         0.001      0.000       11.5





 STATION - SUR L'OUM-ER-RBIA A SIDI DAOUI           STATION NO. 077008
 COUNTRY - MAROC                                    DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 32/50/00  LONG. 007/40/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - EMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1997-01-01 TO 1999-12-31
 PERIOD OF RECORD FROM  - 1997-02-06 TO 1999-11-08

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP          B   HYDROCAR     NO3NO2
                             COND                 TOTAL      TOTAL           
                            02041      02061      05001      06570      07105
                            us/cm      deg C     mg/L B       ug/L     mg/L N


 NO. OF L-FLAGGED VALUES        0          0         12          3          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       32         21         18         12         14
 MEAN                       1223.       20.4        0.1      339.7       3.74
 MINIMUM                      90.       15.0        0.0        0.0       0.13
 DATE OF MINIMUM       1997-02-06 1999-01-22 1999-05-05 1998-10-02 1999-09-02
 10TH PERCENTILE            1010.       15.1        0.0        0.0       0.21
 MEDIAN                     1235.       20.0        0.0      120.0       1.24
 90TH PERCENTILE            1508.       24.4        0.2     1100.0       5.84
 MAXIMUM                    1635.       25.0        0.2     1120.0      23.90
 DATE OF MAXIMUM       1999-11-08 1999-09-02 1997-03-24 1999-08-17 1998-03-26
 STANDARD DEVIATION          277.        3.1        0.1      452.5       6.18




                              NH3        NH3    PERCENT         O2        BOD
                                                 DO SAT       DISS           
                            07506      07556      08001      08101      08201
                           mg/L N     mg/L N    PERCENT    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          1          0          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       11          9         17         31         26
 MEAN                        0.08       0.11        85.        7.8         3.
 MINIMUM                     0.03       0.02        65.        5.4         0.
 DATE OF MINIMUM       1998-01-10 1997-07-24 1999-08-17 1997-03-18 1997-03-18
 10TH PERCENTILE             0.03       0.02        68.        6.4         1.
 MEDIAN                      0.06       0.12        86.        8.0         2.
 90TH PERCENTILE             0.17       0.21        99.        8.8         4.
 MAXIMUM                     0.19       0.23       101.        9.5        19.
 DATE OF MAXIMUM       1998-02-19 1997-11-04 1997-10-02 1997-02-06 1999-07-20
 STANDARD DEVIATION          0.05       0.07        11.        0.9         3.




                              COD          F         pH   SUSP SOL         Na
                                        DISS               105 DEG       DISS
                            08301      09105      10301      10401      11105
                          mg/L O2     mg/L F   pH UNITS       mg/L    mg/L Na


 NO. OF L-FLAGGED VALUES        2          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       23         31         32         26         23
 MEAN                         27.        0.3        8.4        39.       149.
 MINIMUM                       5.        0.2        8.0         1.       110.
 DATE OF MINIMUM       1997-12-02 1997-02-06 1998-10-02 1997-08-15 1997-03-24
 10TH PERCENTILE              10.        0.2        8.0         3.       113.
 MEDIAN                       19.        0.2        8.4        21.       147.
 90TH PERCENTILE              43.        0.5        8.6        78.       180.
 MAXIMUM                      77.        0.8        8.6       230.       190.
 DATE OF MAXIMUM       1999-02-25 1999-03-09 1999-08-17 1997-03-18 1999-10-01
 STANDARD DEVIATION           19.        0.1        0.2        52.        26.




                               Mg         Al          P    P TOTAL   SULPHATE
                             DISS      TOTAL      TOTAL       DISS           
                            12102      13002      15405      15417      16302
                          mg/L Mg    mg/L Al     mg/L P     mg/L P   mg/L SO4


 NO. OF L-FLAGGED VALUES        0         12          5          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       19         13         23          9         32
 MEAN                         38.      0.740      0.165      0.170       100.
 MINIMUM                      19.      0.170      0.030      0.014        81.
 DATE OF MINIMUM       1998-10-02 1999-11-08 1998-10-02 1999-01-22 1997-02-06
 10TH PERCENTILE              26.      0.300      0.040      0.014        84.
 MEDIAN                       35.      0.300      0.110      0.035        96.
 90TH PERCENTILE              43.      2.150      0.276      0.480       117.
 MAXIMUM                      87.      2.670      0.640      0.970       146.
 DATE OF MAXIMUM       1997-11-04 1999-05-05 1998-11-03 1999-10-01 1999-05-05
 STANDARD DEVIATION           14.      0.776      0.149      0.315        15.




                               Cl        DDT    LINDANE     ALDRIN   DIELDRIN
                             DISS      TOTAL                                 
                            17201      18002      18070      18130      18150
                          mg/L Cl       ug/L       ug/L       ug/L       ug/L


 NO. OF L-FLAGGED VALUES        0         12         11         12          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       32          0          1          0          0
 MEAN                        257.      0.003      0.001      0.001      0.002
 MINIMUM                      85.      0.003      0.001      0.001      0.002
 DATE OF MINIMUM       1998-12-03 1997-02-06 1997-02-06 1997-02-06 1997-02-06
 10TH PERCENTILE             187.      0.003      0.001      0.001           
 MEDIAN                      252.      0.003      0.001      0.001      0.002
 90TH PERCENTILE             313.      0.003      0.001      0.001           
 MAXIMUM                     355.      0.003      0.003      0.001      0.002
 DATE OF MAXIMUM       1999-08-17 1999-11-08 1997-03-24 1999-11-08 1999-11-08
 STANDARD DEVIATION           57.      0.000      0.001      0.000      0.000




                             PCBS          K         Ca         Cr         Mn
                                        DISS       DISS      TOTAL      TOTAL
                            18165      19105      20101      24002      25004
                             ug/L     mg/L K    mg/L Ca    mg/L Cr    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0         23         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4         25          6          3         20
 MEAN                       0.078        3.8     71.167      0.044       0.08
 MINIMUM                    0.060        2.4     59.000      0.001       0.01
 DATE OF MINIMUM       1998-01-10 1999-10-01 1999-11-08 1997-02-06 1997-09-02
 10TH PERCENTILE                         2.5                 0.001       0.01
 MEDIAN                     0.075        3.6     66.000      0.005       0.02
 90TH PERCENTILE                         4.8                 0.100       0.19
 MAXIMUM                    0.100        6.7     93.000      0.100       0.77
 DATE OF MAXIMUM       1998-03-26 1999-03-09 1999-07-20 1998-12-03 1997-03-24
 STANDARD DEVIATION         0.017        1.1     13.423      0.049       0.15




                               Fe         Ni         Cu         Zn         As
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            26002      28001      29006      30004      33007
                          mg/L Fe    mg/L Ni    mg/L Cu    mg/L Zn    mg/L As


 NO. OF L-FLAGGED VALUES       13         28         22         17         23
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       19          2          9         15          2
 MEAN                        0.62      0.048      0.009      0.034      0.005
 MINIMUM                     0.00      0.000      0.000      0.000      0.000
 DATE OF MINIMUM       1997-09-02 1997-07-24 1997-07-24 1997-07-24 1997-07-24
 10TH PERCENTILE             0.05      0.050      0.000      0.002      0.005
 MEDIAN                      0.40      0.050      0.010      0.010      0.005
 90TH PERCENTILE             1.00      0.050      0.010      0.070      0.005
 MAXIMUM                     5.30      0.050      0.020      0.230      0.008
 DATE OF MAXIMUM       1999-04-08 1997-05-15 1999-05-05 1999-04-08 1997-03-24
 STANDARD DEVIATION          1.02      0.009      0.005      0.051      0.001




                               Se   COLIFORM   FAEC COL         Cd         Ba
                            TOTAL      TOTAL                 TOTAL      TOTAL
                            34002      36001      36011      48001      80011
                          mg/L Se   No/100ml   No/100ml    mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES       24          0          0         24         26
 NO. OF G-FLAGGED VALUES        0          1          0          0          0
 NO. OF UNFLAGGED VALUES        2         31         31          1          5
 MEAN                       0.006      1358.       710.      0.001      0.297
 MINIMUM                    0.005        16.         0.      0.001      0.000
 DATE OF MINIMUM       1997-02-06 1998-03-26 1997-02-06 1997-02-06 1997-08-15
 10TH PERCENTILE            0.005        43.         9.      0.001      0.000
 MEDIAN                     0.005       695.       210.      0.001      0.001
 90TH PERCENTILE            0.005      2400.      2310.      0.001      1.000
 MAXIMUM                    0.019     11000.      4682.      0.005      1.000
 DATE OF MAXIMUM       1997-03-24 1998-06-16 1998-09-02 1999-06-01 1997-10-02
 STANDARD DEVIATION         0.003      2121.      1231.      0.001      0.458




                               Pb    PHENOLS
                            TOTAL           
                            82001      95011
                          mg/L Pb       ug/L


 NO. OF L-FLAGGED VALUES       24          2
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        2         25
 MEAN                       0.072       26.2
 MINIMUM                    0.000        0.0
 DATE OF MINIMUM       1999-01-22 1997-09-02
 10TH PERCENTILE            0.007        0.7
 MEDIAN                     0.100        7.8
 90TH PERCENTILE            0.100       20.4
 MAXIMUM                    0.100      411.0
 DATE OF MAXIMUM       1999-02-25 1999-11-08
 STANDARD DEVIATION         0.043       78.4



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Last updated: 2001-07-30