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STATISTICS for SRI LANKA

STATISTICS FOR SRI LANKA


GEMS/WATER - STATISTICAL SUMMARY BY STATION     2002-02-15   PAGE 589

 STATION - KELANI GANGA IN COLOMBO                  STATION NO. 076002
 COUNTRY - SRI LANKA                                DEPTH(M)       6.0
 LOCATION - OCT. 3  LAT. 07/58/30  LONG. 079/52/00  ELEVATION(M)   5.0
 REGIONAL CENTRE - SEAA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-08-15 TO 1980-03-26

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02041      02061      08102      08201      08301
                            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       25         24         25         22         24
 MEAN                         40.       27.1        6.8        10.        36.
 MINIMUM                      22.       25.4        3.7         1.         8.
 DATE OF MINIMUM       1979-12-05 1979-09-26 1979-10-17 1979-09-19 1979-12-26
 10TH PERCENTILE              23.       26.0        6.1         1.         9.
 MEDIAN                       32.       27.0        7.0         5.        27.
 90TH PERCENTILE              46.       27.9        7.2        24.        66.
 MAXIMUM                     198.       30.0        7.4        46.       115.
 DATE OF MAXIMUM       1980-01-30 1980-03-26 1980-01-30 1979-08-29 1980-03-26
 STANDARD DEVIATION           34.        0.9        0.7        13.        27.




                               pH   SUSP SOL         Cl   FAEC COL
                                     105 DEG       DISS           
                            10302      10401      17205      36011
                         pH UNITS       mg/L    mg/L Cl   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES       25         21         25         26
 MEAN                         6.7         0.         3.     11340.
 MINIMUM                      5.0         0.         1.      2000.
 DATE OF MINIMUM       1979-09-12 1980-03-12 1979-10-03 1979-09-12
 10TH PERCENTILE              5.3         0.         1.      2000.
 MEDIAN                       6.6         0.         2.      7166.
 90TH PERCENTILE              7.7         0.         4.     27100.
 MAXIMUM                      7.8         0.        17.     37250.
 DATE OF MAXIMUM       1980-01-16 1979-11-28 1979-11-28 1979-08-29
 STANDARD DEVIATION           0.8         0.         3.      9970.





 STATION - KELANI GANGA IN COLOMBO                  STATION NO. 076003
 COUNTRY - SRI LANKA                                DEPTH(M)    9999.9
 LOCATION - OCT. 3  LAT. 06/56/15  LONG. 079/56/45  ELEVATION(M)9999.9
 REGIONAL CENTRE - SEAA                             WATER TYPE   RIVER      

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-08-22 TO 1980-03-26

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02041      02061      08102      08201      08301
                            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       24         23         24         21         22
 MEAN                        174.       27.2        6.8        10.        45.
 MINIMUM                      23.       25.4        3.6         2.         4.
 DATE OF MINIMUM       1979-10-24 1979-09-26 1979-10-17 1979-11-21 1979-12-26
 10TH PERCENTILE              23.       26.1        6.2         2.         8.
 MEDIAN                       30.       27.2        6.9         6.        22.
 90TH PERCENTILE             445.       27.9        7.3        17.        79.
 MAXIMUM                    1400.       30.5        7.4        49.       346.
 DATE OF MAXIMUM       1980-03-12 1980-03-26 1980-01-30 1979-11-28 1980-03-26
 STANDARD DEVIATION          346.        1.0        0.8        10.        75.




                               pH   SUSP SOL         Cl   FAEC COL
                                     105 DEG       DISS           
                            10302      10401      17205      36011
                         pH UNITS       mg/L    mg/L Cl   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES       24         21         24         24
 MEAN                         6.7         0.        44.     10604.
 MINIMUM                      5.1         0.         1.         0.
 DATE OF MINIMUM       1979-09-26 1980-01-02 1979-09-12 1980-02-13
 10TH PERCENTILE              5.8         0.         1.      1700.
 MEDIAN                       6.7         0.         2.      6875.
 90TH PERCENTILE              7.4         0.       126.     16525.
 MAXIMUM                      7.6         0.       455.     79750.
 DATE OF MAXIMUM       1980-03-12 1979-11-28 1980-03-12 1979-12-05
 STANDARD DEVIATION           0.6         0.       112.     15416.





 STATION - FREE TRADE ZONE KATWNAYAKE               STATION NO. 076004
 COUNTRY - SRI LANKA                                DEPTH(M)    9999.9
 LOCATION - OCT. 3  LAT. 07/10/30  LONG. 079/52/30  ELEVATION(M)9999.9
 REGIONAL CENTRE - SEAA                             WATER TYPE   GROUNDWATER

 PERIOD REQUESTED FROM  - 1979-01-01 TO 1981-12-31
 PERIOD OF RECORD FROM  - 1979-08-15 TO 1980-03-26

 STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED


                             ELEC       TEMP         O2        BOD        COD
                             COND                  DISS                      
                            02041      02061      08102      08201      08301
                            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       44         42         44         38         41
 MEAN                         70.       29.3        4.2         8.        53.
 MINIMUM                      18.       25.6        0.0         2.         4.
 DATE OF MINIMUM       1979-12-12 1979-09-26 1979-11-28 1979-09-19 1979-12-26
 10TH PERCENTILE              28.       26.6        0.0         3.         8.
 MEDIAN                       48.       29.7        6.0         5.        27.
 90TH PERCENTILE             123.       30.8        7.1        15.       143.
 MAXIMUM                     170.       39.7        7.4        45.       243.
 DATE OF MAXIMUM       1980-03-12 1980-01-02 1980-01-30 1980-03-12 1979-09-12
 STANDARD DEVIATION           42.        2.3        3.1         9.        62.




                               pH   SUSP SOL         Cl   FAEC COL
                                     105 DEG       DISS           
                            10302      10401      17205      36011
                         pH UNITS       mg/L    mg/L Cl   No/100ml


 NO. OF L-FLAGGED VALUES        0          0          0          0
 NO. OF G-FLAGGED VALUES        0          0          0          0
 NO. OF UNFLAGGED VALUES       44         38         44         46
 MEAN                         6.4         0.         8.    2.0E+04
 MINIMUM                      4.6         0.         1.    7.8E+02
 DATE OF MINIMUM       1980-02-13 1980-03-12 1979-11-05 1979-08-15
 10TH PERCENTILE              5.4         0.         2.    1.0E+03
 MEDIAN                       6.4         0.         7.    9.9E+03
 90TH PERCENTILE              7.4         0.        13.    2.5E+04
 MAXIMUM                      7.5         0.        26.    3.7E+05
 DATE OF MAXIMUM       1980-03-12 1979-12-12 1980-02-13 1979-10-10
 STANDARD DEVIATION           0.7         0.         6.    5.4E+04



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GEMS/WATER
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Last updated: 2001-07-30