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STATISTICS for Argentina

STATISTICS FOR ARGENTINA


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-01-30   PAGE   1

 STATION - RIO PARANA PUERTO LIBERTAD               STATION NO. 001001
 COUNTRY - ARGENTINA                                DEPTH(M)       8.9
 LOCATION - OCT. 5  LAT. 25/55/00  LONG. 054/36/00  ELEVATION(M) 260.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1994-03-22 TO 1994-12-11

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP      TRANS    PHENOLS   CHLORO A
                             COND                                            
                            02041      02062      02076      06532      06711
                            us/cm      deg C          m       mg/L       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        3          2          2          4          4
 MEAN                         45.       24.5        0.6      5.300     0.0066
 MINIMUM                                                     4.000     0.0010
 DATE OF MINIMUM                                        1994-09-24 1994-06-14
 10TH PERCENTILE                                                             
 MEDIAN                                                      4.600     0.0063
 90TH PERCENTILE                                                             
 MAXIMUM                                                     8.000     0.0125
 DATE OF MAXIMUM                                        1994-06-14 1994-03-22
 STANDARD DEVIATION                                          1.851     0.0064




                           NO3NO2        NH3         O2        ALK         pH
                                                   DISS      TOTAL           
                            07105      07506      08101      10101      10301
                           mg/L N     mg/L N    mg/L O2       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          4          3          4          3
 MEAN                        0.40       0.05        9.9      18.02        7.3
 MINIMUM                     0.23       0.02                 16.37           
 DATE OF MINIMUM       1994-03-22 1994-06-14            1994-03-22           
 10TH PERCENTILE                                                             
 MEDIAN                      0.25       0.06                 17.81           
 90TH PERCENTILE                                                             
 MAXIMUM                     0.85       0.08                 20.10           
 DATE OF MAXIMUM       1994-09-24 1994-03-22            1994-09-24           
 STANDARD DEVIATION          0.30       0.03                  1.55           




                               Na         Si          P         Cl         Cr
                             DISS   REACTIVE      TOTAL       DISS      TOTAL
                            11103      14101      15405      17202      24002
                          mg/L Na   mg/LSiO2     mg/L P    mg/L Cl    mg/L Cr


 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          3          4
 MEAN                         66.       3.15      0.073         4.      0.005
 MINIMUM                                          0.011                 0.001
 DATE OF MINIMUM                             1994-06-14            1994-09-24
 10TH PERCENTILE                                                             
 MEDIAN                                           0.054                 0.002
 90TH PERCENTILE                                                             
 MAXIMUM                                          0.172                 0.018
 DATE OF MAXIMUM                             1994-03-22            1994-06-14
 STANDARD DEVIATION                               0.075                 0.008




                               Fe         Cu         Zn         Zn         As
                            TOTAL      TOTAL      TOTAL       DISS      TOTAL
                            26002      29006      30004      30104      33007
                          mg/L Fe    mg/L Cu    mg/L Zn    mg/L Zn    mg/L As


 NO. OF L-FLAGGED VALUES        0          0          1          1          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          4          3          3          1
 MEAN                        0.57      0.015      0.042      0.036      0.010
 MINIMUM                               0.007      0.010      0.010      0.010
 DATE OF MINIMUM                  1994-09-24 1994-09-24 1994-03-22 1994-06-14
 10TH PERCENTILE                                                             
 MEDIAN                                0.013      0.014      0.013      0.010
 90TH PERCENTILE                                                             
 MAXIMUM                               0.028      0.130      0.110      0.012
 DATE OF MAXIMUM                  1994-06-14 1994-06-14 1994-06-14 1994-03-22
 STANDARD DEVIATION                    0.009      0.059      0.049      0.001




                               As   COLIFORM   FAEC COL         Cd         Cd
                             DISS      TOTAL                 TOTAL       DISS
                            33103      36001      36011      48001      48101
                          mg/L As   No/100ml   No/100ml    mg/L Cd    mg/L Cd


 NO. OF L-FLAGGED VALUES        4          0          0          3          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          3          3          1          1
 MEAN                       0.010       530.       250.      0.001      0.001
 MINIMUM                    0.010                            0.001      0.001
 DATE OF MINIMUM       1994-03-22                       1994-03-22 1994-03-22
 10TH PERCENTILE                                                             
 MEDIAN                     0.010                            0.001      0.001
 90TH PERCENTILE                                                             
 MAXIMUM                    0.010                            0.001      0.001
 DATE OF MAXIMUM       1994-12-11                       1994-12-11 1994-12-11
 STANDARD DEVIATION         0.000                            0.000      0.000




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


 NO. OF L-FLAGGED VALUES        4          4          1          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          3          3          1
 MEAN                       2.000      2.000      0.006      0.006    12131.0
 MINIMUM                    2.000      2.000      0.002      0.002           
 DATE OF MINIMUM       1994-03-22 1994-03-22 1994-03-22 1994-03-22           
 10TH PERCENTILE                                                             
 MEDIAN                     2.000      2.000      0.006      0.006           
 90TH PERCENTILE                                                             
 MAXIMUM                    2.000      2.000      0.011      0.011           
 DATE OF MAXIMUM       1994-12-11 1994-12-11 1994-12-11 1994-12-11           
 STANDARD DEVIATION         0.000      0.000      0.004      0.004           





 STATION - RIO PARANA CORRIENTES                    STATION NO. 001002
 COUNTRY - ARGENTINA                                DEPTH(M)       2.4
 LOCATION - OCT. 5  LAT. 27/40/00  LONG. 058/50/00  ELEVATION(M)  69.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1994-02-01 TO 1996-10-15

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2      NO2-N        NH3
                             COND                                            
                            02041      02061      07105      07207      07551
                            us/cm      deg C     mg/L N     mg/L N     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          5          5          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10          9          1          1          2
 MEAN                         64.       24.7       0.05       0.04       0.19
 MINIMUM                      46.       17.0       0.05       0.01       0.05
 DATE OF MINIMUM       1996-10-15 1996-06-12 1995-06-28 1995-12-13 1994-02-01
 10TH PERCENTILE              46.                                        0.05
 MEDIAN                       58.       27.0       0.05       0.03       0.05
 90TH PERCENTILE              87.                                        0.50
 MAXIMUM                      97.       29.0       0.06       0.10       0.60
 DATE OF MAXIMUM       1996-06-12 1996-03-19 1995-03-29 1995-06-28 1996-10-15
 STANDARD DEVIATION           19.        4.7       0.00       0.04       0.22




                               O2         O2        COD        ALK         pH
                             DISS       DISS                 TOTAL           
                            08101      08102      08301      10102      10301
                          mg/L O2    mg/L O2    mg/L O2       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          4          2         10          6
 MEAN                         8.2        7.8        30.      21.80        7.2
 MINIMUM                      7.7        7.2                 18.00        7.1
 DATE OF MINIMUM       1995-12-13 1994-10-18            1994-07-11 1996-10-15
 10TH PERCENTILE                                             18.00           
 MEDIAN                       8.2        7.4                 20.00        7.2
 90TH PERCENTILE                                             26.00           
 MAXIMUM                      8.7        9.3                 28.00        7.3
 DATE OF MAXIMUM       1995-06-28 1994-07-11            1995-03-29 1995-03-29
 STANDARD DEVIATION           0.4        1.0                  3.43        0.1




                               pH   SUSP SOL   HARDNESS         Na         Mg
                                     105 DEG      TOTAL       DISS       DISS
                            10302      10401      10603      11103      12101
                         pH UNITS       mg/L       mg/L    mg/L Na    mg/L Mg


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4         10          6          3          6
 MEAN                         7.4        92.       26.2         2.         4.
 MINIMUM                      6.7         4.       19.0                    0.
 DATE OF MINIMUM       1994-10-18 1994-10-18 1996-10-15            1995-12-13
 10TH PERCENTILE                          4.                                 
 MEDIAN                       7.5        64.       24.0                    3.
 90TH PERCENTILE                        141.                                 
 MAXIMUM                      7.7       350.       40.0                    6.
 DATE OF MAXIMUM       1994-04-05 1995-03-29 1995-03-29            1996-03-19
 STANDARD DEVIATION           0.5        98.        8.2                    2.




                               Mg         Si          P   SULPHATE   SULPHATE
                             DISS   REACTIVE      TOTAL                      
                            12103      14101      15405      16302      16306
                          mg/L Mg   mg/LSiO2     mg/L P   mg/L SO4   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          2          3          5          3
 MEAN                          3.      14.50      0.031         7.         3.
 MINIMUM                       2.                               3.           
 DATE OF MINIMUM       1994-02-01                       1996-10-15           
 10TH PERCENTILE                                                             
 MEDIAN                        3.                               9.           
 90TH PERCENTILE                                                             
 MAXIMUM                       4.                              10.           
 DATE OF MAXIMUM       1994-10-18                       1995-03-29           
 STANDARD DEVIATION            1.                               3.           




                               Cl         Cl          K         Ca         Cr
                             DISS       DISS       DISS       DISS      TOTAL
                            17201      17204      19103      20101      24002
                          mg/L Cl    mg/L Cl     mg/L K    mg/L Ca    mg/L Cr


 NO. OF L-FLAGGED VALUES        0          0          0          0          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4          5          3          4          0
 MEAN                          5.         4.        1.3      4.250      0.050
 MINIMUM                       3.         3.                 3.000           
 DATE OF MINIMUM       1994-02-01 1995-12-13            1994-02-01           
 10TH PERCENTILE                                                             
 MEDIAN                        4.         4.                 4.000           
 90TH PERCENTILE                                                             
 MAXIMUM                       9.         5.                 6.000           
 DATE OF MAXIMUM       1994-07-11 1996-06-12            1994-04-05           
 STANDARD DEVIATION            3.         1.                 1.258           




                               Mn         Fe         Ni         Zn   COLIFORM
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            25004      26004      28001      30004      36001
                          mg/L Mn    mg/L Fe    mg/L Ni    mg/L Zn   No/100ml


 NO. OF L-FLAGGED VALUES        7          4          1          1          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          6          0          0         10
 MEAN                        0.52       0.20      0.050      0.050      2580.
 MINIMUM                     0.05       0.01                               0.
 DATE OF MINIMUM       1994-02-01 1996-10-15                       1995-06-28
 10TH PERCENTILE                        0.01                               0.
 MEDIAN                      0.05       0.20                              25.
 90TH PERCENTILE                        0.30                            2400.
 MAXIMUM                     3.80       0.50                           23000.
 DATE OF MAXIMUM       1996-06-12 1995-03-29                       1995-03-29
 STANDARD DEVIATION          1.33       0.16                            7213.




                         FAEC COL       INST
                                      DISCHG
                            36011      97160
                         No/100ml       m3/S


 NO. OF L-FLAGGED VALUES        0          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        8         10
 MEAN                        303.    18780.0
 MINIMUM                       0.    12206.0
 DATE OF MINIMUM       1995-03-29 1994-10-18
 10TH PERCENTILE                     12206.0
 MEDIAN                        4.    18504.0
 90TH PERCENTILE                     24817.0
 MAXIMUM                    2400.    25145.0
 DATE OF MAXIMUM       1994-07-11 1996-10-15
 STANDARD DEVIATION          847.     4590.2





 STATION - RIO PARANA ROSARIO                       STATION NO. 001004
 COUNTRY - ARGENTINA                                DEPTH(M)       6.4
 LOCATION - OCT. 5  LAT. 32/50/00  LONG. 060/45/00  ELEVATION(M)  24.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1994-01-05 TO 1996-12-15

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP    PHENOLS   HYDROCAR         CN
                             COND                            TOTAL           
                            02041      02061      06532      06570      06606
                            us/cm      deg C       mg/L       ug/L    mg/L Cn


 NO. OF L-FLAGGED VALUES        0          0         16          2          5
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22          9          0          1          0
 MEAN                        182.       21.3      2.190      566.7      0.060
 MINIMUM                     131.       15.0      0.005                 0.050
 DATE OF MINIMUM       1995-03-16 1994-07-05 1995-03-16            1996-08-15
 10TH PERCENTILE             134.                 0.005                      
 MEDIAN                      174.       22.0      0.005                 0.050
 90TH PERCENTILE             236.                 5.000                      
 MAXIMUM                     252.       26.0      5.000                 0.100
 DATE OF MAXIMUM       1994-01-05 1994-01-05 1994-11-16            1996-01-15
 STANDARD DEVIATION           36.        3.9      2.559                 0.022




                            NO2-N      NO3-N        NH3        NH3         O2
                                                                         DISS
                            07207      07309      07551      07555      08101
                           mg/L N     mg/L N     mg/L N     mg/L N    mg/L O2


 NO. OF L-FLAGGED VALUES       15          2          5          2          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0         15          0         15
 MEAN                        0.01       1.00       0.05       0.05        7.7
 MINIMUM                     0.00                  0.05                   6.0
 DATE OF MINIMUM       1995-03-16            1994-01-11            1995-03-16
 10TH PERCENTILE             0.00                  0.05                   6.2
 MEDIAN                      0.01                  0.05                   7.2
 90TH PERCENTILE             0.01                  0.05                   9.1
 MAXIMUM                     0.01                  0.05                   9.8
 DATE OF MAXIMUM       1996-11-15            1996-12-15            1996-07-15
 STANDARD DEVIATION          0.00                  0.00                   1.2




                               O2        BOD        COD        ALK         pH
                             DISS                            TOTAL           
                            08102      08201      08301      10102      10301
                          mg/L O2    mg/L O2    mg/L O2       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        8          9          9         20         20
 MEAN                         6.4         1.         8.      31.30        7.5
 MINIMUM                      0.5         0.         6.      25.00        7.2
 DATE OF MINIMUM       1995-06-23 1995-03-16 1994-11-16 1996-01-15 1994-01-11
 10TH PERCENTILE                                             26.00        7.2
 MEDIAN                       7.3         1.         8.      31.00        7.5
 90TH PERCENTILE                                             38.00        7.7
 MAXIMUM                      7.6         1.         9.      38.00        7.7
 DATE OF MAXIMUM       1994-11-16 1994-11-16 1994-07-05 1994-01-11 1996-10-15
 STANDARD DEVIATION           2.4         0.         1.       4.32        0.2




                               pH       TENS         Al         Cl        DDT
                                     ANIONIC       DISS       DISS      TOTAL
                            10302      10702      13102      17204      18002
                         pH UNITS       mg/L    mg/L Al    mg/L Cl       ug/L


 NO. OF L-FLAGGED VALUES        0          2          0          0         10
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          0          3         22          0
 MEAN                         7.6        0.0      0.310        22.      0.361
 MINIMUM                                                       15.      0.001
 DATE OF MINIMUM                                        1995-03-16 1996-10-15
 10TH PERCENTILE                                               15.      0.001
 MEDIAN                                                        21.      0.600
 90TH PERCENTILE                                               30.      0.600
 MAXIMUM                                                       33.      0.600
 DATE OF MAXIMUM                                        1994-02-09 1994-11-16
 STANDARD DEVIATION                                             5.      0.309




                          LINDANE     ALDRIN   DIELDRIN         Cr         Cr
                                                             TOTAL       DISS
                            18070      18130      18150      24002      24052
                             ug/L       ug/L       ug/L    mg/L Cr    mg/L Cr


 NO. OF L-FLAGGED VALUES       10          6         10          7          3
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          0          0          0          8
 MEAN                       0.241      0.200      0.121      0.005      0.014
 MINIMUM                    0.001      0.200      0.001      0.001      0.001
 DATE OF MINIMUM       1996-10-15 1994-01-05 1996-10-15 1994-07-05 1995-03-16
 10TH PERCENTILE            0.001                 0.001                 0.001
 MEDIAN                     0.400      0.200      0.200      0.003      0.015
 90TH PERCENTILE            0.400                 0.200                 0.021
 MAXIMUM                    0.400      0.200      0.200      0.010      0.030
 DATE OF MAXIMUM       1994-11-16 1994-11-16 1994-11-16 1994-05-09 1996-03-15
 STANDARD DEVIATION         0.206      0.000      0.103      0.004      0.009




                               Mn         Fe         Ni         Cu         Cu
                             DISS      TOTAL      TOTAL      TOTAL       DISS
                            25101      26002      28001      29006      29106
                          mg/L Mn    mg/L Fe    mg/L Ni    mg/L Cu    mg/L Cu


 NO. OF L-FLAGGED VALUES       10          4          4          6          8
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          5          0          1          3
 MEAN                        0.61       0.10      0.010      0.002      0.067
 MINIMUM                     0.03       0.10      0.010      0.002      0.005
 DATE OF MINIMUM       1996-08-15 1994-01-05 1996-08-15 1994-01-05 1995-06-23
 10TH PERCENTILE             0.03                                       0.010
 MEDIAN                      1.00       0.10      0.010      0.002      0.050
 90TH PERCENTILE             1.00                                       0.059
 MAXIMUM                     1.00       0.10      0.010      0.002      0.270
 DATE OF MAXIMUM       1996-06-15 1995-06-23 1996-11-15 1994-11-16 1996-04-15
 STANDARD DEVIATION          0.50       0.00      0.000      0.000      0.069





                               Zn         Zn         As         Se   COLIFORM
                            TOTAL       DISS      TOTAL       DISS      TOTAL
                            30004      30104      33003      34102      36001
                          mg/L Zn    mg/L Zn    mg/L As    mg/L Se   No/100ml


 NO. OF L-FLAGGED VALUES        6         10          9          7          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          2          0          0         22
 MEAN                       0.015      0.046      0.041      0.005      2300.
 MINIMUM                    0.001      0.025      0.010      0.005       210.
 DATE OF MINIMUM       1994-01-11 1995-03-16 1995-03-16 1995-12-15 1995-03-16
 10TH PERCENTILE                       0.025                             530.
 MEDIAN                     0.020      0.050      0.050      0.005      2151.
 90TH PERCENTILE                       0.050                            4312.
 MAXIMUM                    0.025      0.050      0.050      0.005      4600.
 DATE OF MAXIMUM       1994-11-16 1996-11-15 1994-11-16 1996-09-15 1994-05-09
 STANDARD DEVIATION         0.011      0.010      0.018      0.000      1317.




                         FAEC COL         Ag         Cd         Cd         Sb
                                        DISS      TOTAL       DISS       DISS
                            36011      47101      48001      48101      51101
                         No/100ml    mg/L Ag    mg/L Cd    mg/L Cd    mg/L Sb


 NO. OF L-FLAGGED VALUES        0         10          7         12          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       22          0          0          0          0
 MEAN                        402.      0.050      0.001      0.001      0.005
 MINIMUM                      73.      0.050      0.001      0.000      0.005
 DATE OF MINIMUM       1995-06-23 1995-12-15 1994-01-05 1995-12-15 1995-12-15
 10TH PERCENTILE             150.      0.050                 0.000           
 MEDIAN                      290.      0.050      0.001      0.001      0.005
 90TH PERCENTILE             875.      0.050                 0.001           
 MAXIMUM                    1179.      0.050      0.002      0.001      0.005
 DATE OF MAXIMUM       1996-01-15 1996-11-15 1994-05-09 1995-06-23 1996-09-15
 STANDARD DEVIATION          295.      0.000      0.001      0.000      0.000




                               Ba         Ba         Hg         Pb         Pb
                             DISS      TOTAL       DISS      TOTAL       DISS
                            56101      80011      80111      82001      82101
                          mg/L Ba    ug/L Hg    ug/L Hg    mg/L Pb    mg/L Pb


 NO. OF L-FLAGGED VALUES        7          4          3          8          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0          1          0          1          0
 MEAN                         0.4      1.020      1.000      0.003      0.002
 MINIMUM                      0.1      1.000                 0.002           
 DATE OF MINIMUM       1996-11-15 1994-01-11            1994-01-05           
 10TH PERCENTILE                                                             
 MEDIAN                       0.5      1.000                 0.002           
 90TH PERCENTILE                                                             
 MAXIMUM                      0.5      1.100                 0.005           
 DATE OF MAXIMUM       1996-04-15 1994-03-28            1994-05-09           
 STANDARD DEVIATION           0.2      0.045                 0.002           




                          BENZENE       INST
                                      DISCHG
                            95100      97160
                             ug/L       m3/S


 NO. OF L-FLAGGED VALUES       15          0
 NO. OF G-FLAGGED VALUES        0          0
 NO. OF UNFLAGGED VALUES        0         22
 MEAN                         8.0    19750.4
 MINIMUM                      0.2    11575.0
 DATE OF MINIMUM       1996-09-15 1996-01-15
 10TH PERCENTILE              0.2    11918.6
 MEDIAN                      10.0    18734.0
 90TH PERCENTILE             10.0    27762.4
 MAXIMUM                     10.0    35170.0
 DATE OF MAXIMUM       1996-07-15 1995-03-16
 STANDARD DEVIATION           4.1     6042.6





 STATION - R. URUGUAY-EMBAL. SALTO GRANDE           STATION NO. 001007
 COUNTRY - ARGENTINA                                DEPTH(M)       9.0
 LOCATION - OCT. 5  LAT. 31/15/00  LONG. 057/55/00  ELEVATION(M)  51.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1995-02-21 TO 1995-06-23

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2         O2        BOD
                             COND                  DISS       DISS           
                            02041      02061      08101      08102      08201
                            us/cm      deg C    mg/L O2    mg/L O2    mg/L O2


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          2          1          2
 MEAN                         53.       25.3        7.4        7.1         0.
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                              COD         pH         Cr         Mn         Fe
                                                  TOTAL      TOTAL      TOTAL
                            08301      10302      24002      25004      26004
                          mg/L O2   pH UNITS    mg/L Cr    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        2          1          2          2          1
 MEAN                          7.        6.5      0.003       0.02       1.31
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Cu         Zn         As         Cd         Ba
                            TOTAL      TOTAL      TOTAL      TOTAL      TOTAL
                            29006      30004      33003      48001      80011
                          mg/L Cu    mg/L Zn    mg/L As    mg/L Cd    ug/L Hg


 NO. OF L-FLAGGED VALUES        0          0          1          2          1
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          2          1          0          1
 MEAN                       0.008      0.020      0.002      0.001      2.000
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          





                               Pb
                            TOTAL
                            82001
                          mg/L Pb


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        2
 MEAN                       0.007
 MINIMUM                         
 DATE OF MINIMUM                 
 10TH PERCENTILE                 
 MEDIAN                          
 90TH PERCENTILE                 
 MAXIMUM                         
 DATE OF MAXIMUM                 
 STANDARD DEVIATION              





 STATION - EMBALSE SAN ROQUE                        STATION NO. 001008
 COUNTRY - ARGENTINA                                DEPTH(M)       9.0
 LOCATION - OCT. 5  LAT. 31/21/48  LONG. 064/28/40  ELEVATION(M) 640.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1994-06-14 TO 1996-12-01

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                            INTEG       ELEC       TEMP   CHLORO A     NO3NO2
                           SAMPLE       COND                                 
                            00190      02041      02062      06711      07105
                              N/A      us/cm      deg C       mg/L     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        6          6          6          6          6
 MEAN                          1.       235.       14.9     0.0170       0.96
 MINIMUM                       1.       170.        8.1     0.0002       0.18
 DATE OF MINIMUM       1994-06-14 1994-06-14 1994-07-25 1994-06-14 1994-06-14
 10TH PERCENTILE                                                             
 MEDIAN                        1.       246.       15.5     0.0126       0.49
 90TH PERCENTILE                                                             
 MAXIMUM                       1.       282.       23.0     0.0467       2.58
 DATE OF MAXIMUM       1994-11-22 1994-11-22 1994-11-22 1994-11-22 1994-09-20
 STANDARD DEVIATION            0.        49.        5.3     0.0161       1.02




                              NH3         O2        BOD        ALK         pH
                                        DISS                 TOTAL           
                            07555      08101      08201      10102      10301
                           mg/L N    mg/L O2    mg/L O2       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        6          6          5          6          6
 MEAN                        0.54        9.5         2.     113.39        6.4
 MINIMUM                     0.22        8.9         1.      81.01        6.1
 DATE OF MINIMUM       1994-06-14 1994-11-22 1994-07-25 1994-06-14 1994-06-14
 10TH PERCENTILE                                                             
 MEDIAN                      0.43        9.8         2.     119.03        6.5
 90TH PERCENTILE                                                             
 MAXIMUM                     1.32        9.8         3.     127.36        6.5
 DATE OF MAXIMUM       1994-11-22 1994-10-19 1994-11-22 1994-10-19 1994-11-22
 STANDARD DEVIATION          0.41        0.4         1.      16.79        0.2




                         SUSP SOL         Na         Mg    P ORTHO          P
                          105 DEG       DISS       DISS       DISS      TOTAL
                            10401      11103      12103      15255      15405
                             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        3          5          5          1          7
 MEAN                        196.        29.         6.      0.020      0.046
 MINIMUM                                 22.         5.                 0.030
 DATE OF MINIMUM                  1994-07-25 1994-07-25            1996-12-01
 10TH PERCENTILE                                                             
 MEDIAN                                  30.         6.                 0.046
 90TH PERCENTILE                                                             
 MAXIMUM                                 33.         8.                 0.064
 DATE OF MAXIMUM                  1994-11-22 1994-08-23            1994-08-23
 STANDARD DEVIATION                       4.         1.                 0.012




                         SULPHATE         Cl          K         Ca
                                        DISS       DISS       DISS
                            16302      17201      19103      20101
                         mg/L SO4    mg/L Cl     mg/L K    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES        5          4          5          5
 MEAN                         30.         8.        2.9     25.491
 MINIMUM                      19.         5.        2.4     22.350
 DATE OF MINIMUM       1994-09-20 1994-06-14 1994-08-23 1994-07-25
 10TH PERCENTILE                                                  
 MEDIAN                       32.         8.        2.6     25.650
 90TH PERCENTILE                                                  
 MAXIMUM                      40.         9.        3.7     27.735
 DATE OF MAXIMUM       1994-11-22 1994-11-22 1994-10-19 1994-11-22
 STANDARD DEVIATION           10.         2.        0.5      1.997





 STATION - NAHUEL HUAPI - BARILOCHE                 STATION NO. 001012
 COUNTRY - ARGENTINA                                DEPTH(M)      80.0
 LOCATION - OCT. 5  LAT. 41/01/53  LONG. 071/30/01  ELEVATION(M) 764.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   LAKE       

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1994-03-10 TO 1996-11-12

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP      TRANS   CHLORO A     NO3NO2
                             COND                                            
                            02041      02062      02076      06711      07105
                            us/cm      deg C          m       mg/L     mg/L N


 NO. OF L-FLAGGED VALUES        0          0          0          0          7
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       10         24          6          4          3
 MEAN                         28.       10.6       16.0     0.1579       0.01
 MINIMUM                      19.        7.2        9.0     0.0058       0.00
 DATE OF MINIMUM       1994-03-10 1995-09-26 1995-09-26 1995-03-30 1995-03-30
 10TH PERCENTILE              19.        8.0                             0.00
 MEDIAN                       28.        9.4       15.5     0.1165       0.01
 90TH PERCENTILE              32.       14.7                             0.01
 MAXIMUM                      35.       15.2       22.5     0.3930       0.02
 DATE OF MAXIMUM       1994-11-16 1994-03-10 1996-11-12 1994-03-10 1994-03-10
 STANDARD DEVIATION            4.        2.8        4.7     0.1874       0.00




                              NH3    PERCENT         O2        ALK         pH
                                      DO SAT       DISS      TOTAL           
                            07556      08001      08101      10102      10302
                           mg/L N    PERCENT    mg/L O2       mg/L   pH UNITS


 NO. OF L-FLAGGED VALUES       10          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        0         19         23          9         10
 MEAN                        0.01       104.       10.6      12.22        6.8
 MINIMUM                     0.00        80.        8.7       9.50        6.2
 DATE OF MINIMUM       1995-03-30 1996-11-12 1996-11-12 1995-03-30 1994-03-10
 10TH PERCENTILE             0.00        98.        9.3                   6.2
 MEDIAN                      0.00       105.       10.8      12.40        6.8
 90TH PERCENTILE             0.01       110.       11.5                   7.1
 MAXIMUM                     0.01       110.       11.8      13.09        7.2
 DATE OF MAXIMUM       1994-11-16 1994-11-16 1994-11-16 1994-03-10 1994-11-16
 STANDARD DEVIATION          0.00         7.        0.8       1.08        0.3




                               Na         Mg         Si          P   SULPHATE
                             DISS       DISS   REACTIVE      TOTAL           
                            11103      12103      14101      15405      16302
                          mg/L Na    mg/L Mg   mg/LSiO2     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        8          9          7          9          8
 MEAN                          2.         1.       8.62      0.003         1.
 MINIMUM                       1.         1.       7.28      0.001         1.
 DATE OF MINIMUM       1996-11-12 1994-03-10 1996-03-12 1994-03-10 1994-03-10
 10TH PERCENTILE                                                             
 MEDIAN                        2.         1.       8.92      0.003         1.
 90TH PERCENTILE                                                             
 MAXIMUM                       2.         1.      10.25      0.007         2.
 DATE OF MAXIMUM       1994-03-10 1996-11-12 1995-03-30 1996-11-12 1994-11-16
 STANDARD DEVIATION            0.         0.       1.05      0.002         0.



                               Cl          K         Ca
                             DISS       DISS       DISS
                            17201      19103      20101
                          mg/L Cl     mg/L K    mg/L Ca


 NO. OF L-FLAGGED VALUES        2          0          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        0          9          9
 MEAN                          1.        0.5      2.748
 MINIMUM                                 0.3      2.300
 DATE OF MINIMUM                  1995-03-30 1996-03-12
 10TH PERCENTILE                                       
 MEDIAN                                  0.5      2.800
 90TH PERCENTILE                                       
 MAXIMUM                                 0.7      3.090
 DATE OF MAXIMUM                  1996-03-12 1994-11-16
 STANDARD DEVIATION                      0.1      0.289





 STATION - RIO URUGUAY PUERTO PILCOMAYO             STATION NO. 001103
 COUNTRY - ARGENTINA                                DEPTH(M)       0.0
 LOCATION - OCT. 5  LAT. 26/55/00  LONG. 058/33/00  ELEVATION(M)   0.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1994-01-01 TO 1996-12-31
 PERIOD OF RECORD FROM  - 1994-01-26 TO 1994-04-12

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             TEMP     NO3NO2        NH3         O2          F
                                                              DISS       DISS
                            02061      07105      07551      08101      09110
                            deg C     mg/L N     mg/L N    mg/L O2     mg/L F


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          4          4          4          4
 MEAN                        29.3       1.61       0.16        4.2        0.1
 MINIMUM                                1.50       0.10        3.4        0.1
 DATE OF MINIMUM                  1994-01-26 1994-03-17 1994-04-12 1994-01-26
 10TH PERCENTILE                                                             
 MEDIAN                                 1.56       0.18        4.3        0.1
 90TH PERCENTILE                                                             
 MAXIMUM                                1.81       0.20        4.8        0.1
 DATE OF MAXIMUM                  1994-04-12 1994-04-12 1994-02-16 1994-04-12
 STANDARD DEVIATION                     0.14       0.05        0.6        0.0




                              ALK         pH   SUSP SOL         Mg          P
                            TOTAL               105 DEG       DISS      TOTAL
                            10102      10301      10401      12103      15405
                             mg/L   pH UNITS       mg/L    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          4          4          4          1
 MEAN                       45.25        7.3       125.         6.      0.050
 MINIMUM                    37.00        7.2        91.         4.           
 DATE OF MINIMUM       1994-01-26 1994-04-12 1994-04-12 1994-02-16           
 10TH PERCENTILE                                                             
 MEDIAN                     44.00        7.4       125.         6.           
 90TH PERCENTILE                                                             
 MAXIMUM                    56.00        7.4       160.         7.           
 DATE OF MAXIMUM       1994-02-16 1994-02-16 1994-02-16 1994-04-12           
 STANDARD DEVIATION          8.26        0.1        29.         2.           




                         SULPHATE         Cl         Ca         Fe   COLIFORM
                                        DISS       DISS      TOTAL      TOTAL
                            16302      17204      20101      26002      36001
                         mg/L SO4    mg/L Cl    mg/L Ca    mg/L Fe   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          4          4
 MEAN                         12.        27.      9.575       0.24      1185.
 MINIMUM                      10.         8.      8.000       0.15       240.
 DATE OF MINIMUM       1994-01-26 1994-04-12 1994-03-17 1994-04-12 1994-01-26
 10TH PERCENTILE                                                             
 MEDIAN                       12.        20.     10.000       0.20      1500.
 90TH PERCENTILE                                                             
 MAXIMUM                      15.        60.     10.300       0.40      1500.
 DATE OF MAXIMUM       1994-02-16 1994-02-16 1994-04-12 1994-01-26 1994-04-12
 STANDARD DEVIATION            2.        23.      1.059       0.11       630.



                         FAEC COL
                                 
                            36011
                         No/100ml


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        4
 MEAN                        321.
 MINIMUM                     120.
 DATE OF MINIMUM       1994-01-26
 10TH PERCENTILE                 
 MEDIAN                      207.
 90TH PERCENTILE                 
 MAXIMUM                     750.
 DATE OF MAXIMUM       1994-04-12
 STANDARD DEVIATION          289.



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GEMS/WATER
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Last updated: 2001-07-30