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STATISTICS FOR MALI

STATISTICS FOR MALI


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-01-24   PAGE 432

 STATION - NIGER AT BAMAKO (DJIKORONI)              STATION NO. 099001
 COUNTRY - MALI                                     DEPTH(M)    9999.9
 LOCATION - OCT. 0  LAT. 12/30/00  LONG. 008/00/00  ELEVATION(M)   5.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1993-03-23 TO 1993-09-08

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          3          3          3
 MEAN                       0.498      0.437        42.       31.3       0.74
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07555      08101      09105      10101      10301
                           mg/L N    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        1          2          3          3          3
 MEAN                        0.06        7.8        0.0      18.33        6.5
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SUSP SOL         Na         Mg          P    P TOTAL
                          105 DEG       DISS       DISS      TOTAL       DISS
                            10401      11103      12103      15405      15417
                             mg/L    mg/L Na    mg/L Mg     mg/L P     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        2          3          3          1          1
 MEAN                         43.         3.         2.      0.600      0.010
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SULPHATE         Cl          K         Ca         Mn
                                        DISS       DISS       DISS      TOTAL
                            16301      17201      19103      20101      25004
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          3          3          3
 MEAN                          0.         1.        1.5      3.733       0.00
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Fe         Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL           
                            26002      29001      36001      36011
                          mg/L Fe    mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          3          3
 MEAN                        0.19      0.000        49.        16.
 MINIMUM                                                          
 DATE OF MINIMUM                                                  
 10TH PERCENTILE                                                  
 MEDIAN                                                           
 90TH PERCENTILE                                                  
 MAXIMUM                                                          
 DATE OF MAXIMUM                                                  
 STANDARD DEVIATION                                               





 STATION - NIGER UPSTREAM BAMAKO KENIEROB           STATION NO. 099002
 COUNTRY - MALI                                     DEPTH(M)    9999.9
 LOCATION - OCT. 0  LAT. 12/06/00  LONG. 008/19/00  ELEVATION(M)   8.1
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-31 TO 1993-09-14

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          3          4
 MEAN                       0.534      0.467        43.       30.2       0.69
 MINIMUM                    0.366      0.312        26.                  0.50
 DATE OF MINIMUM       1993-09-14 1993-09-14 1993-09-14            1992-12-31
 10TH PERCENTILE                                                             
 MEDIAN                     0.532      0.498        46.                  0.62
 90TH PERCENTILE                                                             
 MAXIMUM                    0.704      0.558        52.                  1.01
 DATE OF MAXIMUM       1993-06-11 1993-06-11 1993-06-11            1993-06-11
 STANDARD DEVIATION         0.139      0.109        12.                  0.24




                           ORG. N        NH3         O2          F        ALK
                             DISS                  DISS       DISS      TOTAL
                            07401      07555      08101      09105      10101
                           mg/L N     mg/L N    mg/L O2     mg/L F       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        1          1          3          4          4
 MEAN                         0.5       0.52        8.7        1.1      20.00
 MINIMUM                                                       0.1      13.00
 DATE OF MINIMUM                                        1993-04-01 1993-09-14
 10TH PERCENTILE                                                             
 MEDIAN                                                        0.1      21.50
 90TH PERCENTILE                                                             
 MAXIMUM                                                       4.3      24.00
 DATE OF MAXIMUM                                        1993-09-14 1993-04-01
 STANDARD DEVIATION                                            2.1       4.97




                               pH   SUSP SOL         Na         Mg          P
                                     105 DEG       DISS       DISS      TOTAL
                            10301      10401      11103      12103      15405
                         pH UNITS       mg/L    mg/L Na    mg/L Mg     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        4          3          4          4          1
 MEAN                         6.3        38.         3.         1.      0.200
 MINIMUM                      5.6                    1.         1.           
 DATE OF MINIMUM       1992-12-31            1993-09-14 1993-06-11           
 10TH PERCENTILE                                                             
 MEDIAN                       6.4                    4.         1.           
 90TH PERCENTILE                                                             
 MAXIMUM                      7.0                    4.         2.           
 DATE OF MAXIMUM       1993-06-11            1993-04-01 1992-12-31           
 STANDARD DEVIATION           0.6                    2.         1.           




                          P TOTAL   SULPHATE         Cl          K         Ca
                             DISS                  DISS       DISS       DISS
                            15417      16301      17201      19103      20101
                           mg/L P   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          4          4          4
 MEAN                       0.095         0.         1.        1.4      4.275
 MINIMUM                                  0.         0.        0.9      3.100
 DATE OF MINIMUM                  1992-12-31 1993-09-14 1992-12-31 1992-12-31
 10TH PERCENTILE                                                             
 MEDIAN                                   0.         1.        1.3      4.600
 90TH PERCENTILE                                                             
 MAXIMUM                                  0.         2.        2.0      4.800
 DATE OF MAXIMUM                  1993-09-14 1992-12-31 1993-06-11 1993-06-11
 STANDARD DEVIATION                       0.         1.        0.5      0.806




                               Mn         Fe         Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL      TOTAL           
                            25004      26002      29001      36001      36011
                          mg/L Mn    mg/L Fe    mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          2          4          4
 MEAN                        0.01       0.20      0.000        44.        11.
 MINIMUM                     0.00       0.05                   30.        10.
 DATE OF MINIMUM       1992-12-31 1992-12-31            1993-06-11 1993-04-01
 10TH PERCENTILE                                                             
 MEDIAN                      0.00       0.13                   49.        11.
 90TH PERCENTILE                                                             
 MAXIMUM                     0.03       0.50                   50.        12.
 DATE OF MAXIMUM       1993-06-11 1993-09-14            1993-09-14 1993-09-14
 STANDARD DEVIATION          0.02       0.20                   10.         1.





 STATION - FORAGE-BAMAKO                            STATION NO. 099003
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 13/40/00  LONG. 012/00/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-29 TO 1993-09-10

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          3          4
 MEAN                       4.371      4.251       389.       29.9       0.48
 MINIMUM                    3.978      4.054       383.                  0.30
 DATE OF MINIMUM       1993-03-30 1992-12-29 1993-06-15            1993-03-30
 10TH PERCENTILE                                                             
 MEDIAN                     4.437      4.174       390.                  0.50
 90TH PERCENTILE                                                             
 MAXIMUM                    4.632      4.601       393.                  0.60
 DATE OF MAXIMUM       1993-06-15 1993-09-10 1993-09-10            1993-06-15
 STANDARD DEVIATION         0.289      0.246         5.                  0.13




                              NH3          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            07555      09105      10101      10301      10401
                           mg/L N     mg/L F       mg/L   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        1          4          4          4          2
 MEAN                        0.15        0.1     190.00        7.5       222.
 MINIMUM                                 0.0     183.00        6.6           
 DATE OF MINIMUM                  1993-09-10 1992-12-29 1992-12-29           
 10TH PERCENTILE                                                             
 MEDIAN                                  0.2     188.50        7.4           
 90TH PERCENTILE                                                             
 MAXIMUM                                 0.2     200.00        8.4           
 DATE OF MAXIMUM                  1993-06-15 1993-09-10 1993-06-15           
 STANDARD DEVIATION                      0.1       7.70        0.7           




                               Na         Mg    P TOTAL   SULPHATE         Cl
                             DISS       DISS       DISS                  DISS
                            11103      12103      15417      16301      17201
                          mg/L Na    mg/L Mg     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        4          4          2          4          4
 MEAN                         14.        31.      0.180         1.        12.
 MINIMUM                      12.        13.                    0.         1.
 DATE OF MINIMUM       1993-09-10 1993-03-30            1993-03-30 1993-06-15
 10TH PERCENTILE                                                             
 MEDIAN                       14.        34.                    0.        13.
 90TH PERCENTILE                                                             
 MAXIMUM                      16.        44.                    2.        19.
 DATE OF MAXIMUM       1992-12-29 1993-06-15            1993-09-10 1993-09-10
 STANDARD DEVIATION            2.        15.                    1.         7.




                                K         Ca         Mn         Fe         Cu
                             DISS       DISS      TOTAL      TOTAL      TOTAL
                            19103      20101      25004      26002      29001
                           mg/L K    mg/L Ca    mg/L Mn    mg/L Fe    mg/L Cu


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                         8.0     19.812       0.04       0.10      0.000
 MINIMUM                      7.2      4.000       0.00       0.00      0.000
 DATE OF MINIMUM       1993-09-10 1993-06-15 1993-09-10 1993-09-10 1992-12-29
 10TH PERCENTILE                                                             
 MEDIAN                       7.8     16.825       0.02       0.06      0.000
 90TH PERCENTILE                                                             
 MAXIMUM                      9.4     41.600       0.10       0.27      0.000
 DATE OF MAXIMUM       1992-12-29 1993-03-30 1993-06-15 1992-12-29 1993-09-10
 STANDARD DEVIATION           1.0     17.587       0.04       0.12      0.000




                         COLIFORM   FAEC COL
                            TOTAL           
                            36001      36011
                         No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        4          4
 MEAN                          6.         0.
 MINIMUM                       5.         0.
 DATE OF MINIMUM       1992-12-29 1992-12-29
 10TH PERCENTILE                            
 MEDIAN                        5.         0.
 90TH PERCENTILE                            
 MAXIMUM                       8.         0.
 DATE OF MAXIMUM       1993-06-15 1993-09-10
 STANDARD DEVIATION            2.         0.





 STATION - FLEUVE NIGER - BAMAKO                    STATION NO. 099004
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 13/40/00  LONG. 012/00/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-23 TO 1993-09-08

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                       0.497      0.439        43.       28.3       0.75
 MINIMUM                    0.369      0.370        30.       22.9       0.30
 DATE OF MINIMUM       1993-09-08 1993-09-08 1993-09-08 1992-12-23 1993-03-23
 10TH PERCENTILE                                                             
 MEDIAN                     0.497      0.440        44.       28.9       0.70
 90TH PERCENTILE                                                             
 MAXIMUM                    0.624      0.506        52.       32.8       1.30
 DATE OF MAXIMUM       1993-06-10 1993-06-10 1993-06-10 1993-06-10 1993-09-08
 STANDARD DEVIATION         0.106      0.057         9.        4.5       0.44




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07555      08101      09105      10101      10301
                           mg/L N    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        1          4          4          4          4
 MEAN                        0.03        8.1        0.0      18.50        6.4
 MINIMUM                                 6.7        0.0      14.00        6.1
 DATE OF MINIMUM                  1993-06-10 1993-09-08 1993-09-08 1992-12-23
 10TH PERCENTILE                                                             
 MEDIAN                                  8.3        0.0      19.00        6.4
 90TH PERCENTILE                                                             
 MAXIMUM                                 9.3        0.1      22.00        6.8
 DATE OF MAXIMUM                  1992-12-23 1993-06-10 1993-06-10 1993-06-10
 STANDARD DEVIATION                      1.3        0.0       3.42        0.3




                         SUSP SOL         Na         Mg          P    P TOTAL
                          105 DEG       DISS       DISS      TOTAL       DISS
                            10401      11103      12103      15405      15417
                             mg/L    mg/L Na    mg/L Mg     mg/L P     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        2          4          4          1          2
 MEAN                         36.         3.         2.      1.300      0.045
 MINIMUM                                  2.         1.                      
 DATE OF MINIMUM                  1993-09-08 1992-12-23                      
 10TH PERCENTILE                                                             
 MEDIAN                                   4.         2.                      
 90TH PERCENTILE                                                             
 MAXIMUM                                  4.         2.                      
 DATE OF MAXIMUM                  1993-06-10 1993-09-08                      
 STANDARD DEVIATION                       1.         0.                      




                         SULPHATE         Cl          K         Ca         Mn
                                        DISS       DISS       DISS      TOTAL
                            16301      17201      19103      20101      25004
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          3
 MEAN                          0.         1.        1.4      3.200       0.01
 MINIMUM                       0.         0.        1.1      1.600           
 DATE OF MINIMUM       1992-12-23 1993-09-08 1993-09-08 1993-09-08           
 10TH PERCENTILE                                                             
 MEDIAN                        0.         1.        1.2      3.200           
 90TH PERCENTILE                                                             
 MAXIMUM                       0.         1.        2.0      4.800           
 DATE OF MAXIMUM       1993-09-08 1993-06-10 1993-06-10 1993-06-10           
 STANDARD DEVIATION            0.         0.        0.4      1.306           




                               Fe         Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL           
                            26002      29001      36001      36011
                          mg/L Fe    mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        4          3          4          4
 MEAN                        0.20      0.000        60.        22.
 MINIMUM                     0.08                   58.        20.
 DATE OF MINIMUM       1993-06-10            1993-09-08 1992-12-23
 10TH PERCENTILE                                                  
 MEDIAN                      0.15                   60.        22.
 90TH PERCENTILE                                                  
 MAXIMUM                     0.43                   62.        24.
 DATE OF MAXIMUM       1993-09-08            1993-06-10 1993-06-10
 STANDARD DEVIATION          0.16                    2.         2.





 STATION - FORAGE-BAMAKO                            STATION NO. 099005
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 13/40/00  LONG. 012/00/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-29 TO 1993-09-10

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          3          4
 MEAN                       0.989      0.952        90.       30.8       0.40
 MINIMUM                    0.869      0.764        82.                  0.30
 DATE OF MINIMUM       1993-03-30 1993-03-30 1993-03-30            1993-03-30
 10TH PERCENTILE                                                             
 MEDIAN                     0.984      0.899        90.                  0.40
 90TH PERCENTILE                                                             
 MAXIMUM                    1.120      1.245        96.                  0.50
 DATE OF MAXIMUM       1993-06-15 1993-09-10 1993-06-15            1992-12-29
 STANDARD DEVIATION         0.138      0.214         7.                  0.12




                              NH3          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            07555      09105      10101      10301      10401
                           mg/L N     mg/L F       mg/L   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        1          4          4          4          2
 MEAN                        0.11        0.0      45.75        6.1        72.
 MINIMUM                                 0.0      36.00        5.3           
 DATE OF MINIMUM                  1993-09-10 1993-03-30 1992-12-29           
 10TH PERCENTILE                                                             
 MEDIAN                                  0.0      43.50        5.7           
 90TH PERCENTILE                                                             
 MAXIMUM                                 0.1      60.00        7.5           
 DATE OF MAXIMUM                  1992-12-29 1993-09-10 1993-06-15           
 STANDARD DEVIATION                      0.0      10.53        1.0           




                               Na         Mg          P    P TOTAL   SULPHATE
                             DISS       DISS      TOTAL       DISS           
                            11103      12103      15405      15417      16301
                          mg/L Na    mg/L Mg     mg/L P     mg/L P   mg/L SO4


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          1          2          3
 MEAN                          1.         4.      0.270      0.240         0.
 MINIMUM                       1.         3.                                 
 DATE OF MINIMUM       1992-12-29 1992-12-29                                 
 10TH PERCENTILE                                                             
 MEDIAN                        1.         4.                                 
 90TH PERCENTILE                                                             
 MAXIMUM                       1.         5.                                 
 DATE OF MAXIMUM       1993-06-15 1993-06-15                                 
 STANDARD DEVIATION            0.         1.                                 



                               Cl          K         Ca         Mn         Fe
                             DISS       DISS       DISS      TOTAL      TOTAL
                            17201      19103      20101      25004      26002
                          mg/L Cl     mg/L K    mg/L Ca    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                          0.       10.4      6.602       0.08       0.38
 MINIMUM                       0.       10.0      5.600       0.00       0.00
 DATE OF MINIMUM       1992-12-29 1993-09-10 1993-03-30 1992-12-29 1993-09-10
 10TH PERCENTILE                                                             
 MEDIAN                        0.       10.3      6.405       0.00       0.41
 90TH PERCENTILE                                                             
 MAXIMUM                       1.       11.1      8.000       0.30       0.70
 DATE OF MAXIMUM       1993-03-30 1992-12-29 1993-09-10 1993-06-15 1993-06-15
 STANDARD DEVIATION            0.        0.5      1.197       0.15       0.29




                               Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL           
                            29001      36001      36011
                          mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4
 MEAN                       0.000        14.         0.
 MINIMUM                    0.000        13.         0.
 DATE OF MINIMUM       1992-12-29 1992-12-29 1992-12-29
 10TH PERCENTILE                                       
 MEDIAN                     0.000        14.         0.
 90TH PERCENTILE                                       
 MAXIMUM                    0.000        18.         0.
 DATE OF MAXIMUM       1993-09-10 1993-06-15 1993-09-10
 STANDARD DEVIATION         0.000         2.         0.





 STATION - FLEUVE NIGER A KOULIKORO                 STATION NO. 099006
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 12/52/00  LONG. 007/34/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-22 TO 1993-09-07

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                       0.478      0.463        42.       28.9       0.85
 MINIMUM                    0.371      0.394        30.       24.9       0.30
 DATE OF MINIMUM       1993-09-07 1992-12-22 1993-09-07 1992-12-22 1992-12-22
 10TH PERCENTILE                                                             
 MEDIAN                     0.459      0.444        43.       29.2       0.75
 90TH PERCENTILE                                                             
 MAXIMUM                    0.624      0.570        50.       32.2       1.60
 DATE OF MAXIMUM       1993-06-09 1993-06-09 1993-06-09 1993-06-09 1993-09-07
 STANDARD DEVIATION         0.112      0.083        10.        3.4       0.58




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07555      08101      09105      10101      10301
                           mg/L N    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        1          3          4          4          4
 MEAN                        0.08        7.2        0.0      18.75        6.5
 MINIMUM                                            0.0      14.00        6.2
 DATE OF MINIMUM                             1993-09-07 1993-09-07 1992-12-22
 10TH PERCENTILE                                                             
 MEDIAN                                             0.0      19.50        6.5
 90TH PERCENTILE                                                             
 MAXIMUM                                            0.1      22.00        6.8
 DATE OF MAXIMUM                             1993-06-09 1993-06-09 1993-06-09
 STANDARD DEVIATION                                 0.0       3.95        0.3




                         SUSP SOL         Na         Mg          P    P TOTAL
                          105 DEG       DISS       DISS      TOTAL       DISS
                            10401      11103      12103      15405      15417
                             mg/L    mg/L Na    mg/L Mg     mg/L P     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        2          4          4          2          2
 MEAN                         44.         3.         1.      0.900      0.080
 MINIMUM                                  2.         0.                      
 DATE OF MINIMUM                  1993-09-07 1993-03-22                      
 10TH PERCENTILE                                                             
 MEDIAN                                   3.         1.                      
 90TH PERCENTILE                                                             
 MAXIMUM                                  4.         2.                      
 DATE OF MAXIMUM                  1993-06-09 1993-09-07                      
 STANDARD DEVIATION                       1.         1.                      




                         SULPHATE         Cl          K         Ca         Mn
                                        DISS       DISS       DISS      TOTAL
                            16301      17201      19103      20101      25004
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                          0.         1.        1.4      3.800       0.00
 MINIMUM                       0.         0.        1.1      0.800       0.00
 DATE OF MINIMUM       1992-12-22 1993-09-07 1993-09-07 1993-09-07 1992-12-22
 10TH PERCENTILE                                                             
 MEDIAN                        0.         1.        1.2      4.400       0.00
 90TH PERCENTILE                                                             
 MAXIMUM                       0.         2.        2.0      5.600       0.01
 DATE OF MAXIMUM       1993-09-07 1993-06-09 1993-06-09 1993-03-22 1993-06-09
 STANDARD DEVIATION            0.         1.        0.4      2.104       0.00




                               Fe         Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL           
                            26002      29001      36001      36011
                          mg/L Fe    mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        4          3          4          4
 MEAN                        0.16      0.000        62.        21.
 MINIMUM                     0.06                   57.        15.
 DATE OF MINIMUM       1993-06-09            1992-12-22 1992-12-22
 10TH PERCENTILE                                                  
 MEDIAN                      0.12                   60.        19.
 90TH PERCENTILE                                                  
 MAXIMUM                     0.34                   72.        30.
 DATE OF MAXIMUM       1993-03-22            1993-09-07 1993-09-07
 STANDARD DEVIATION          0.13                    7.         7.





 STATION - FLEUVE NIGER A KOULIKORO                 STATION NO. 099007
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 12/52/00  LONG. 007/34/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-22 TO 1993-09-07

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                       0.488      0.452        43.       29.1       0.63
 MINIMUM                    0.395      0.363        30.       23.9       0.30
 DATE OF MINIMUM       1993-09-07 1993-09-07 1993-09-07 1992-12-22 1993-03-22
 10TH PERCENTILE                                                             
 MEDIAN                     0.467      0.457        44.       29.1       0.61
 90TH PERCENTILE                                                             
 MAXIMUM                    0.624      0.530        54.       34.4       1.00
 DATE OF MAXIMUM       1993-06-09 1993-03-22 1993-03-22 1993-06-09 1993-09-07
 STANDARD DEVIATION         0.106      0.086        12.        5.2       0.38




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07555      08101      09105      10101      10301
                           mg/L N    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        1          4          4          4          4
 MEAN                        0.15        8.0        0.0      19.25        6.6
 MINIMUM                                 6.2        0.0      14.00        6.2
 DATE OF MINIMUM                  1993-06-09 1993-09-07 1993-09-07 1993-03-22
 10TH PERCENTILE                                                             
 MEDIAN                                  7.9        0.0      19.50        6.6
 90TH PERCENTILE                                                             
 MAXIMUM                                10.0        0.1      24.00        6.8
 DATE OF MAXIMUM                  1993-03-22 1993-06-09 1993-03-22 1993-09-07
 STANDARD DEVIATION                      1.7        0.0       4.57        0.3




                         SUSP SOL         Na         Mg          P    P TOTAL
                          105 DEG       DISS       DISS      TOTAL       DISS
                            10401      11103      12103      15405      15417
                             mg/L    mg/L Na    mg/L Mg     mg/L P     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        2          4          4          1          2
 MEAN                         36.         3.         1.      0.350      0.100
 MINIMUM                                  3.         0.                      
 DATE OF MINIMUM                  1993-09-07 1992-12-22                      
 10TH PERCENTILE                                                             
 MEDIAN                                   3.         1.                      
 90TH PERCENTILE                                                             
 MAXIMUM                                  4.         3.                      
 DATE OF MAXIMUM                  1993-06-09 1993-06-09                      
 STANDARD DEVIATION                       1.         1.                      




                         SULPHATE         Cl          K         Ca         Mn
                                        DISS       DISS       DISS      TOTAL
                            16301      17201      19103      20101      25004
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                          0.         1.        1.5      3.600       0.00
 MINIMUM                       0.         0.        1.2      2.400       0.00
 DATE OF MINIMUM       1992-12-22 1993-09-07 1992-12-22 1993-09-07 1992-12-22
 10TH PERCENTILE                                                             
 MEDIAN                        0.         1.        1.3      3.200       0.00
 90TH PERCENTILE                                                             
 MAXIMUM                       0.         1.        2.0      5.600       0.01
 DATE OF MAXIMUM       1993-03-22 1993-03-22 1993-06-09 1993-03-22 1993-06-09
 STANDARD DEVIATION            0.         0.        0.4      1.386       0.00




                               Fe         Cu   COLIFORM   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL      TOTAL           
                            26002      29001      36001      36002      36011
                          mg/L Fe    mg/L Cu   No/100ml   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          1          4
 MEAN                        0.11      0.000        61.         0.        21.
 MINIMUM                     0.02      0.000        58.                   16.
 DATE OF MINIMUM       1993-03-22 1992-12-22 1993-06-09            1993-06-09
 10TH PERCENTILE                                                             
 MEDIAN                      0.08      0.000        60.                   20.
 90TH PERCENTILE                                                             
 MAXIMUM                     0.25      0.000        65.                   28.
 DATE OF MAXIMUM       1993-09-07 1993-09-07 1993-09-07            1993-09-07
 STANDARD DEVIATION          0.11      0.000         3.                    5.





 STATION - FLEUVE NIGER A KOULIKORO                 STATION NO. 099008
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 12/52/00  LONG. 007/34/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-22 TO 1993-09-07

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                       0.496      0.434        40.       29.7       0.65
 MINIMUM                    0.392      0.370        27.       25.4       0.20
 DATE OF MINIMUM       1993-09-07 1992-12-22 1992-12-22 1992-12-22 1992-12-22
 10TH PERCENTILE                                                             
 MEDIAN                     0.484      0.429        40.       29.4       0.60
 90TH PERCENTILE                                                             
 MAXIMUM                    0.624      0.507        52.       34.6       1.20
 DATE OF MAXIMUM       1993-06-09 1993-06-09 1993-06-09 1993-06-09 1993-09-07
 STANDARD DEVIATION         0.105      0.069        12.        4.1       0.44




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07555      08101      09105      10101      10301
                           mg/L N    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        1          4          4          4          4
 MEAN                        0.12        7.3        0.0      17.75        6.5
 MINIMUM                                 6.4        0.0      12.00        6.1
 DATE OF MINIMUM                  1993-06-09 1993-09-07 1992-12-22 1993-03-22
 10TH PERCENTILE                                                             
 MEDIAN                                  7.1        0.0      18.50        6.5
 90TH PERCENTILE                                                             
 MAXIMUM                                 8.6        0.1      22.00        6.8
 DATE OF MAXIMUM                  1992-12-22 1993-06-09 1993-06-09 1993-06-09
 STANDARD DEVIATION                      0.9        0.0       5.06        0.3




                         SUSP SOL         Na         Mg          P    P TOTAL
                          105 DEG       DISS       DISS      TOTAL       DISS
                            10401      11103      12103      15405      15417
                             mg/L    mg/L Na    mg/L Mg     mg/L P     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        2          4          4          1          2
 MEAN                         37.         4.         1.      0.300      0.295
 MINIMUM                                  3.         0.                      
 DATE OF MINIMUM                  1993-09-07 1992-12-22                      
 10TH PERCENTILE                                                             
 MEDIAN                                   4.         1.                      
 90TH PERCENTILE                                                             
 MAXIMUM                                  4.         3.                      
 DATE OF MAXIMUM                  1993-03-22 1993-06-09                      
 STANDARD DEVIATION                       1.         1.                      




                         SULPHATE         Cl          K         Ca         Mn
                                        DISS       DISS       DISS      TOTAL
                            16301      17201      19103      20101      25004
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                          0.         0.        1.5      3.602       0.00
 MINIMUM                       0.         0.        1.2      2.400       0.00
 DATE OF MINIMUM       1992-12-22 1993-06-09 1992-12-22 1993-09-07 1992-12-22
 10TH PERCENTILE                                                             
 MEDIAN                        0.         0.        1.4      3.600       0.00
 90TH PERCENTILE                                                             
 MAXIMUM                       0.         1.        2.0      4.810       0.01
 DATE OF MAXIMUM       1993-09-07 1992-12-22 1993-06-09 1992-12-22 1993-06-09
 STANDARD DEVIATION            0.         0.        0.4      1.037       0.00




                               Fe         Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL           
                            26002      29001      36001      36011
                          mg/L Fe    mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        4          3          4          4
 MEAN                        0.16      0.000        64.        22.
 MINIMUM                     0.03                   58.        16.
 DATE OF MINIMUM       1993-03-22            1993-06-09 1993-06-09
 10TH PERCENTILE                                                  
 MEDIAN                      0.12                   63.        20.
 90TH PERCENTILE                                                  
 MAXIMUM                     0.35                   70.        30.
 DATE OF MAXIMUM       1992-12-22            1993-09-07 1993-09-07
 STANDARD DEVIATION          0.15                    5.         6.





 STATION - FLEUVE NIGER A SELINGUE                  STATION NO. 099009
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 11/39/00  LONG. 008/15/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1993-04-06 TO 1993-09-16

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          3          3          3
 MEAN                       0.480      0.436        42.       30.4       0.50
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                              NH3         O2          F        ALK         pH
                                        DISS       DISS      TOTAL           
                            07555      08101      09105      10101      10301
                           mg/L N    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        1          3          3          3          3
 MEAN                        0.40        7.0        0.1      19.00        7.1
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SUSP SOL         Na         Mg          P    P TOTAL
                          105 DEG       DISS       DISS      TOTAL       DISS
                            10401      11103      12103      15405      15417
                             mg/L    mg/L Na    mg/L Mg     mg/L P     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        2          3          3          1          1
 MEAN                         43.         3.         1.      0.200      0.110
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SULPHATE         Cl          K         Ca         Mn
                                        DISS       DISS       DISS      TOTAL
                            16301      17201      19103      20101      25004
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca    mg/L Mn


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          3          3          3
 MEAN                          0.         1.        1.1      3.733       0.19
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Fe         Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL      TOTAL           
                            26002      29001      36001      36011
                          mg/L Fe    mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          1          3
 MEAN                        0.23      0.000        54.        44.
 MINIMUM                                                          
 DATE OF MINIMUM                                                  
 10TH PERCENTILE                                                  
 MEDIAN                                                           
 90TH PERCENTILE                                                  
 MAXIMUM                                                          
 DATE OF MAXIMUM                                                  
 STANDARD DEVIATION                                               





 STATION - FORAGE NO. 8 - NOSSOMBOUGOU              STATION NO. 099010
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 13/06/00  LONG. 007/57/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-24 TO 1993-09-09

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          2          4
 MEAN                       4.580      4.760       464.       29.5      25.53
 MINIMUM                    3.395      2.907       345.                 15.04
 DATE OF MINIMUM       1993-03-29 1993-06-11 1993-06-11            1993-06-11
 10TH PERCENTILE                                                             
 MEDIAN                     3.649      3.433       379.                 23.53
 90TH PERCENTILE                                                             
 MAXIMUM                    7.628      9.267       754.                 40.00
 DATE OF MAXIMUM       1993-09-09 1993-09-09 1993-09-09            1993-09-09
 STANDARD DEVIATION         2.041      3.015       194.                 10.52




                              NH3          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            07555      09105      10101      10301      10401
                           mg/L N     mg/L F       mg/L   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        1          4          4          4          2
 MEAN                        0.10        0.0      40.25        6.4       315.
 MINIMUM                                 0.0      33.00        6.0           
 DATE OF MINIMUM                  1993-09-09 1992-12-24 1993-06-11           
 10TH PERCENTILE                                                             
 MEDIAN                                  0.0      38.50        6.2           
 90TH PERCENTILE                                                             
 MAXIMUM                                 0.1      51.00        7.0           
 DATE OF MAXIMUM                  1993-06-11 1993-09-09 1992-12-24           
 STANDARD DEVIATION                      0.0       7.72        0.4           




                               Na         Mg          P    P TOTAL   SULPHATE
                             DISS       DISS      TOTAL       DISS           
                            11103      12103      15405      15417      16301
                          mg/L Na    mg/L Mg     mg/L P     mg/L P   mg/L SO4


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          1          2          4
 MEAN                         18.        32.      0.150      0.150         1.
 MINIMUM                      14.        18.                               0.
 DATE OF MINIMUM       1993-06-11 1993-03-29                       1992-12-24
 10TH PERCENTILE                                                             
 MEDIAN                       15.        20.                               0.
 90TH PERCENTILE                                                             
 MAXIMUM                      27.        69.                               5.
 DATE OF MAXIMUM       1993-09-09 1993-09-09                       1993-09-09
 STANDARD DEVIATION            6.        25.                               2.




                               Cl          K         Ca         Mn         Fe
                             DISS       DISS       DISS      TOTAL      TOTAL
                            17201      19103      20101      25004      26002
                          mg/L Cl     mg/L K    mg/L Ca    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                         57.        5.1     21.275       0.01       0.03
 MINIMUM                      34.        2.6      8.800       0.00       0.00
 DATE OF MINIMUM       1992-12-24 1993-06-11 1993-09-09 1992-12-24 1993-09-09
 10TH PERCENTILE                                                             
 MEDIAN                       39.        3.1     22.800       0.00       0.02
 90TH PERCENTILE                                                             
 MAXIMUM                     118.       11.8     30.700       0.03       0.07
 DATE OF MAXIMUM       1993-09-09 1993-09-09 1992-12-24 1993-06-11 1992-12-24
 STANDARD DEVIATION           40.        4.5      9.258       0.02       0.03




                               Cu
                            TOTAL
                            29001
                          mg/L Cu


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        4
 MEAN                       0.000
 MINIMUM                    0.000
 DATE OF MINIMUM       1992-12-24
 10TH PERCENTILE                 
 MEDIAN                     0.000
 90TH PERCENTILE                 
 MAXIMUM                    0.000
 DATE OF MAXIMUM       1993-09-09
 STANDARD DEVIATION         0.000





 STATION - FORAGE NO. 6-NOSSOMBOUGOU                STATION NO. 099011
 COUNTRY - MALI                                     DEPTH(M)       0.0
 LOCATION - OCT. 0  LAT. 13/06/00  LONG. 007/57/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AFRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1991-01-01 TO 1993-12-31
 PERIOD OF RECORD FROM  - 1992-12-24 TO 1993-09-09

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                           SUM OF     SUM OF       ELEC       TEMP     NO3NO2
                          CATIONS     ANIONS       COND                      
                            00120      00125      02041      02061      07105
                            MEQ/L      MEQ/L      us/cm      deg C     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          3          4
 MEAN                       3.787      3.483       334.       29.6       1.05
 MINIMUM                    3.342      3.296       323.                  1.00
 DATE OF MINIMUM       1993-09-09 1992-12-24 1993-09-09            1992-12-24
 10TH PERCENTILE                                                             
 MEDIAN                     3.915      3.505       335.                  1.00
 90TH PERCENTILE                                                             
 MAXIMUM                    3.975      3.623       341.                  1.20
 DATE OF MAXIMUM       1993-06-14 1993-03-29 1993-03-29            1993-03-29
 STANDARD DEVIATION         0.301      0.138         8.                  0.10




                              NH3          F        ALK         pH   SUSP SOL
                                        DISS      TOTAL               105 DEG
                            07555      09105      10101      10301      10401
                           mg/L N     mg/L F       mg/L   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        2          4          4          4          2
 MEAN                        0.20        0.1     165.75        7.3       160.
 MINIMUM                                 0.0     158.00        7.2           
 DATE OF MINIMUM                  1993-09-09 1992-12-24 1993-03-29           
 10TH PERCENTILE                                                             
 MEDIAN                                  0.2     166.50        7.2           
 90TH PERCENTILE                                                             
 MAXIMUM                                 0.3     172.00        7.6           
 DATE OF MAXIMUM                  1993-06-14 1993-03-29 1992-12-24           
 STANDARD DEVIATION                      0.1       5.91        0.2           




                               Na         Mg          P    P TOTAL   SULPHATE
                             DISS       DISS      TOTAL       DISS           
                            11103      12103      15405      15417      16301
                          mg/L Na    mg/L Mg     mg/L P     mg/L P   mg/L SO4


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          1          2          4
 MEAN                          4.        29.      0.800      0.260         0.
 MINIMUM                       4.        24.                               0.
 DATE OF MINIMUM       1992-12-24 1993-03-29                       1993-06-14
 10TH PERCENTILE                                                             
 MEDIAN                        4.        29.                               0.
 90TH PERCENTILE                                                             
 MAXIMUM                       4.        35.                               0.
 DATE OF MAXIMUM       1993-09-09 1993-09-09                       1993-09-09
 STANDARD DEVIATION            0.         6.                               0.




                               Cl          K         Ca         Mn         Fe
                             DISS       DISS       DISS      TOTAL      TOTAL
                            17201      19103      20101      25004      26002
                          mg/L Cl     mg/L K    mg/L Ca    mg/L Mn    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4          4          4
 MEAN                          3.        1.2     19.032       0.00       0.06
 MINIMUM                       2.        1.1      4.800       0.00       0.00
 DATE OF MINIMUM       1992-12-24 1993-06-14 1993-09-09 1992-12-24 1993-09-09
 10TH PERCENTILE                                                             
 MEDIAN                        3.        1.2     19.615       0.00       0.01
 90TH PERCENTILE                                                             
 MAXIMUM                       4.        1.4     32.100       0.01       0.23
 DATE OF MAXIMUM       1993-09-09 1993-09-09 1992-12-24 1993-06-14 1992-12-24
 STANDARD DEVIATION            1.        0.1     11.170       0.00       0.11




                               Cu   COLIFORM   FAEC COL
                            TOTAL      TOTAL           
                            29001      36001      36011
                          mg/L Cu   No/100ml   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        4          4          4
 MEAN                       0.000        16.         0.
 MINIMUM                    0.000        15.         0.
 DATE OF MINIMUM       1992-12-24 1992-12-24 1992-12-24
 10TH PERCENTILE                                       
 MEDIAN                     0.000        15.         0.
 90TH PERCENTILE                                       
 MAXIMUM                    0.000        18.         0.
 DATE OF MAXIMUM       1993-09-09 1993-09-09 1993-09-09
 STANDARD DEVIATION         0.000         2.         0.




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Last updated: 2001-07-30