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STATISTICS for PERU

STATISTICS FOR PERU


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-02-15   PAGE 509

 STATION - RIO RIMAC LIMA                           STATION NO. 032003
 COUNTRY - PERU                                     DEPTH(M)       2.5
 LOCATION - OCT. 5  LAT. 12/01/10  LONG. 076/57/48  ELEVATION(M) 265.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-01-31 TO 1981-05-31

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2         O2        ALK
                             COND                             DISS      TOTAL
                            02041      02061      07105      08101      10102
                            us/cm      deg C     mg/L N    mg/L O2       mg/L


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES       26         27         25         22         26
 MEAN                        634.       20.2       2.70        8.5     112.38
 MINIMUM                     410.       17.0       0.06        5.3      88.00
 DATE OF MINIMUM       1981-02-28 1979-05-31 1981-05-31 1981-03-31 1981-02-28
 10TH PERCENTILE             462.       18.0       0.08        6.3      95.20
 MEDIAN                      625.       19.0       0.19        7.7     112.00
 90TH PERCENTILE             771.       23.3       8.53        9.8     122.80
 MAXIMUM                     940.       25.0      10.21       27.0     132.00
 DATE OF MAXIMUM       1980-11-30 1980-01-31 1981-02-28 1981-02-28 1979-06-30
 STANDARD DEVIATION          120.        2.3       3.59        4.3       9.78




                               pH   SUSP SOL         Na         Mg   SULPHATE
                                     105 DEG       DISS       DISS           
                            10302      10401      11105      12103      16301
                         pH UNITS       mg/L    mg/L Na    mg/L Mg   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       29         12         23         26         28
 MEAN                         8.0       738.        21.        12.       168.
 MINIMUM                      7.8        22.        17.         2.       106.
 DATE OF MINIMUM       1979-02-28 1980-06-30 1980-08-31 1979-08-30 1981-03-31
 10TH PERCENTILE              7.8        30.        18.         4.       111.
 MEDIAN                       8.0       130.        20.        11.       168.
 90TH PERCENTILE              8.2      2512.        25.        20.       201.
 MAXIMUM                      8.3      2926.        27.        27.       277.
 DATE OF MAXIMUM       1979-05-31 1981-01-31 1980-02-29 1980-02-29 1980-10-31
 STANDARD DEVIATION           0.1      1129.         3.         7.        41.




                               Cl          K         Ca         Mn         Fe
                             DISS       DISS       DISS       DISS      TOTAL
                            17201      19105      20101      25105      26005
                          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       28         21         25         24         29
 MEAN                         33.        2.5     92.216       1.21       8.32
 MINIMUM                      19.        1.5     29.600       0.02       0.18
 DATE OF MINIMUM       1980-03-31 1980-02-29 1981-01-31 1980-09-30 1979-09-30
 10TH PERCENTILE              20.        1.6     50.400       0.05       0.47
 MEDIAN                       30.        2.1     98.000       0.16       1.10
 90TH PERCENTILE              46.        3.8    120.900       2.97      30.04
 MAXIMUM                      59.        4.8    134.000      13.00      60.00
 DATE OF MAXIMUM       1981-01-31 1981-01-31 1980-11-30 1981-01-31 1979-05-31
 STANDARD DEVIATION           10.        0.9     26.083       2.94      16.13






                               Ni         Cu         Zn         As   FAEC COL
                             DISS       DISS       DISS       DISS           
                            28102      29105      30105      33103      36011
                          mg/L Ni    mg/L Cu    mg/L Zn    mg/L As   No/100ml


 NO. OF L-FLAGGED VALUES        4          0          5          9          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        4         23         11          0         11
 MEAN                       0.006      0.196      0.192      0.000      1391.
 MINIMUM                    0.000      0.000      0.000      0.000       600.
 DATE OF MINIMUM       1980-06-30 1980-06-30 1979-07-31 1979-04-30 1979-02-28
 10TH PERCENTILE                       0.020      0.000                  600.
 MEDIAN                     0.000      0.090      0.075      0.000      1100.
 90TH PERCENTILE                       0.284      0.498                 2300.
 MAXIMUM                    0.030      1.700      0.850      0.000      3300.
 DATE OF MAXIMUM       1980-09-30 1981-02-28 1980-03-31 1981-01-31 1979-10-30
 STANDARD DEVIATION         0.012      0.380      0.251      0.000       871.




                               Cd
                             DISS
                            48101
                          mg/L Cd


 NO. OF L-FLAGGED VALUES        9
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES       13
 MEAN                       0.279
 MINIMUM                    0.000
 DATE OF MINIMUM       1979-04-30
 10TH PERCENTILE            0.000
 MEDIAN                     0.000
 90TH PERCENTILE            0.036
 MAXIMUM                    6.000
 DATE OF MAXIMUM       1980-01-31
 STANDARD DEVIATION         1.278





 STATION - POZO 89 ROMA LIMA                        STATION NO. 032004
 COUNTRY - PERU                                     DEPTH(M)      49.4
 LOCATION - OCT. 5  LAT. 12/02/04  LONG. 077/04/31  ELEVATION(M)9999.9
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1980-06-13 TO 1980-06-13

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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          1          1          1          1
 MEAN                        674.       20.0       0.19     144.00        8.0
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SULPHATE         Cl         Fe
                                        DISS      TOTAL
                            16301      17201      26005
                         mg/L SO4    mg/L Cl    mg/L Fe


 NO. OF L-FLAGGED VALUES        0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0
 NO. OF UNFLAGGED VALUES        1          1          1
 MEAN                        124.        49.       0.10
 MINIMUM                                               
 DATE OF MINIMUM                                       
 10TH PERCENTILE                                       
 MEDIAN                                                
 90TH PERCENTILE                                       
 MAXIMUM                                               
 DATE OF MAXIMUM                                       
 STANDARD DEVIATION                                    





 STATION - POZO 95 LIMA                             STATION NO. 032005
 COUNTRY - PERU                                     DEPTH(M)      63.0
 LOCATION - OCT. 5  LAT. 12/01/41  LONG. 077/04/34  ELEVATION(M)  29.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-09-18 TO 1980-08-11

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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        2          2          2          2          2
 MEAN                        774.       20.0       3.08     132.00        8.0
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SUSP SOL         Mg   SULPHATE         Cl         Ca
                          105 DEG       DISS                  DISS       DISS
                            10401      12103      16301      17201      20101
                             mg/L    mg/L Mg   mg/L SO4    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        1          1          2          2          1
 MEAN                        190.         3.       161.        41.    122.400
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Fe
                            TOTAL
                            26005
                          mg/L Fe


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        2
 MEAN                        0.09
 MINIMUM                         
 DATE OF MINIMUM                 
 10TH PERCENTILE                 
 MEDIAN                          
 90TH PERCENTILE                 
 MAXIMUM                         
 DATE OF MAXIMUM                 
 STANDARD DEVIATION              





 STATION - POZO SAN FELIPE 1 LIMA                   STATION NO. 032006
 COUNTRY - PERU                                     DEPTH(M)      26.0
 LOCATION - OCT. 5  LAT. 11/54/01  LONG. 077/02/29  ELEVATION(M)9999.9
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-04-05 TO 1979-04-05

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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          1          1          1          1
 MEAN                       1177.       24.0       0.21     196.00        8.2
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Mg   SULPHATE         Cl         Ca         Fe
                             DISS                  DISS       DISS      TOTAL
                            12103      16301      17201      20101      26005
                          mg/L Mg   mg/L SO4    mg/L Cl    mg/L Ca    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        1          1          1          1          1
 MEAN                          8.       236.        50.    176.000       0.02
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          





 STATION - POZO 186 MANGOMARCA LIMA                 STATION NO. 032007
 COUNTRY - PERU                                     DEPTH(M)      62.0
 LOCATION - OCT. 5  LAT. 12/01/02  LONG. 076/59/14  ELEVATION(M) 178.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-10-11 TO 1981-02-24

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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        3          2          2          2          3
 MEAN                       1081.       22.5       6.48     172.00        7.5
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SUSP SOL         Mg   SULPHATE         Cl         Ca
                          105 DEG       DISS                  DISS       DISS
                            10401      12103      16301      17201      20101
                             mg/L    mg/L Mg   mg/L SO4    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1          3          3          1
 MEAN                        116.         7.       209.        78.    160.000
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Fe
                            TOTAL
                            26005
                          mg/L Fe


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        3
 MEAN                        0.21
 MINIMUM                         
 DATE OF MINIMUM                 
 10TH PERCENTILE                 
 MEDIAN                          
 90TH PERCENTILE                 
 MAXIMUM                         
 DATE OF MAXIMUM                 
 STANDARD DEVIATION              





 STATION - POZO 223 ATE LIMA                        STATION NO. 032008
 COUNTRY - PERU                                     DEPTH(M)      26.0
 LOCATION - OCT. 5  LAT. 12/00/13  LONG. 076/54/03  ELEVATION(M) 345.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-07-03 TO 1980-08-07

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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        2          2          2          2          2
 MEAN                       1026.       19.2       3.06     190.00        7.3
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SUSP SOL         Mg   SULPHATE         Cl         Ca
                          105 DEG       DISS                  DISS       DISS
                            10401      12103      16301      17201      20101
                             mg/L    mg/L Mg   mg/L SO4    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        2          1          2          2          1
 MEAN                        135.         2.       218.       110.    154.400
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Fe
                            TOTAL
                            26005
                          mg/L Fe


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        2
 MEAN                        0.04
 MINIMUM                         
 DATE OF MINIMUM                 
 10TH PERCENTILE                 
 MEDIAN                          
 90TH PERCENTILE                 
 MAXIMUM                         
 DATE OF MAXIMUM                 
 STANDARD DEVIATION              





 STATION - POZO 229 SHANGRI LA LIMA                 STATION NO. 032009
 COUNTRY - PERU                                     DEPTH(M)    9999.9
 LOCATION - OCT. 5  LAT. 11/54/34  LONG. 077/04/24  ELEVATION(M)  65.0
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1980-03-07 TO 1981-06-25

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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          2          4          3          4
 MEAN                       2480.       25.0       7.27     251.33        7.3
 MINIMUM                    2410.                  2.56                   7.2
 DATE OF MINIMUM       1980-03-07            1980-03-07            1980-03-07
 10TH PERCENTILE                                                             
 MEDIAN                     2431.                  6.78                   7.3
 90TH PERCENTILE                                                             
 MAXIMUM                    2647.                 12.97                   7.5
 DATE OF MAXIMUM       1981-02-13            1981-02-13            1981-06-25
 STANDARD DEVIATION          113.                  5.01                   0.2




                               Mg   SULPHATE         Cl         Ca         Fe
                             DISS                  DISS       DISS      TOTAL
                            12103      16301      17201      20101      26005
                          mg/L Mg   mg/L SO4    mg/L Cl    mg/L Ca    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                         40.       298.       224.    196.100       0.11
 MINIMUM                      14.       154.       183.    122.400       0.00
 DATE OF MINIMUM       1980-03-07 1980-03-13 1980-03-13 1980-03-13 1980-03-07
 10TH PERCENTILE                                                             
 MEDIAN                       35.       242.       218.    191.000       0.12
 90TH PERCENTILE                                                             
 MAXIMUM                      77.       556.       280.    280.000       0.20
 DATE OF MAXIMUM       1981-06-25 1981-06-25 1981-06-25 1980-03-07 1981-02-13
 STANDARD DEVIATION           29.       180.        45.     68.266       0.11





 STATION - POZO WIESSE CALLAO                       STATION NO. 032010
 COUNTRY - PERU                                     DEPTH(M)     127.0
 LOCATION - OCT. 5  LAT. 12/04/04  LONG. 077/09/28  ELEVATION(M)9999.9
 REGIONAL CENTRE - AMRA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-11-04 TO 1980-04-06

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP     NO3NO2        ALK         pH
                             COND                            TOTAL           
                            02041      02061      07105      10102      10302
                            us/cm      deg C     mg/L N       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        3          3          3          3          3
 MEAN                       3142.       24.7       1.76     115.33        7.9
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                         SUSP SOL         Mg   SULPHATE         Cl         Ca
                          105 DEG       DISS                  DISS       DISS
                            10401      12103      16301      17201      20101
                             mg/L    mg/L Mg   mg/L SO4    mg/L Cl    mg/L Ca


 NO. OF L-FLAGGED VALUES        0          0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0          0
 NO. OF UNFLAGGED VALUES        3          3          3          3          3
 MEAN                        318.        33.       101.       622.    189.600
 MINIMUM                                                                     
 DATE OF MINIMUM                                                             
 10TH PERCENTILE                                                             
 MEDIAN                                                                      
 90TH PERCENTILE                                                             
 MAXIMUM                                                                     
 DATE OF MAXIMUM                                                             
 STANDARD DEVIATION                                                          




                               Fe
                            TOTAL
                            26005
                          mg/L Fe


 NO. OF L-FLAGGED VALUES        0
 NO. OF G-FLAGGED VALUES        0
 NO. OF UNFLAGGED VALUES        3
 MEAN                        0.24
 MINIMUM                         
 DATE OF MINIMUM                 
 10TH PERCENTILE                 
 MEDIAN                          
 90TH PERCENTILE                 
 MAXIMUM                         
 DATE OF MAXIMUM                 
 STANDARD DEVIATION              



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GEMS/WATER
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Last updated: 2001-07-30