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STATISTICS FOR KENYA
GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-02-15 PAGE 391
STATION - THIKA RIVER STATION NO. 112005
COUNTRY - KENYA DEPTH(M) 9999.9
LOCATION - OCT. 8 LAT. 00/47/50 LONG. 037/15/45 ELEVATION(M)9999.9
REGIONAL CENTRE - AFRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1979-01-01 TO 1981-12-31
PERIOD OF RECORD FROM - 1980-10-09 TO 1980-10-09
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC F ALK pH Na
COND DISS TOTAL DISS
02041 09105 10101 10302 11105
us/cm mg/L F mg/L pH UNITS mg/L Na
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 84. 0.0 0.00 8.0 8.
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
Cl Ca Mn Fe
DISS DISS TOTAL TOTAL
17201 20101 25004 26004
mg/L Cl mg/L Ca mg/L Mn mg/L Fe
NO. OF L-FLAGGED VALUES 0 0 0 0
NO. OF G-FLAGGED VALUES 0 0 0 0
NO. OF UNFLAGGED VALUES 1 1 1 1
MEAN 6. 5.600 0.00 0.00
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
STATION - LAKE VICTORIA,KISUMU STATION NO. 112008
COUNTRY - KENYA DEPTH(M) 5.0
LOCATION - OCT. 8 LAT. 00/15/29 LONG. 034/35/29 ELEVATION(M)1136.0
REGIONAL CENTRE - AFRA WATER TYPE LAKE
PERIOD REQUESTED FROM - 1979-01-01 TO 1981-12-31
PERIOD OF RECORD FROM - 1979-01-22 TO 1980-12-15
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP N KJEL NO3NO2 NH3
COND
02041 02062 07001 07105 07555
us/cm deg C mg/L N mg/L N mg/L N
NO. OF L-FLAGGED VALUES 0 0 0 0 2
NO. OF G-FLAGGED VALUES 0 0 6 0 0
NO. OF UNFLAGGED VALUES 15 36 2 11 6
MEAN 148. 26.6 7606.2 18.28 183.14
MINIMUM 130. 24.0 405.0 3.00 0.02
DATE OF MINIMUM 1980-08-15 1980-01-15 1980-06-15 1980-12-15 1980-08-15
10TH PERCENTILE 131. 25.0 3.70
MEDIAN 150. 26.0 9999.9 14.60 66.80
90TH PERCENTILE 160. 28.2 30.45
MAXIMUM 170. 30.0 9999.9 44.00 476.00
DATE OF MAXIMUM 1980-12-15 1980-06-15 1980-12-15 1979-12-15 1979-01-22
STANDARD DEVIATION 11. 1.3 4432.3 11.59 216.21
O2 COD pH Na Mg
DISS TOTAL TOTAL
08102 08301 10301 11002 12003
mg/L O2 mg/L O2 pH UNITS 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 25 9 15 10 9
MEAN 6.4 3. 7.8 16. 3.
MINIMUM 1.2 0. 7.0 10. 2.
DATE OF MINIMUM 1980-10-15 1980-08-15 1979-01-22 1980-06-15 1979-01-22
10TH PERCENTILE 5.2 7.1 10.
MEDIAN 6.5 3. 7.7 18. 3.
90TH PERCENTILE 7.9 8.3 20.
MAXIMUM 8.0 5. 8.5 21. 4.
DATE OF MAXIMUM 1979-01-22 1980-10-15 1980-12-15 1979-12-15 1980-08-15
STANDARD DEVIATION 1.4 2. 0.4 5. 1.
Si P ORTHO P SULPHATE Cl
REACTIVE DISS PART DISS
14101 15255 15901 16306 17203
mg/LSiO2 mg/L P mg/L P mg/L SO4 mg/L Cl
NO. OF L-FLAGGED VALUES 0 7 0 0 0
NO. OF G-FLAGGED VALUES 0 0 2 0 0
NO. OF UNFLAGGED VALUES 8 5 6 4 9
MEAN 6.36 2.512 260.400 1. 6.
MINIMUM 1.65 0.020 2.800 0. 1.
DATE OF MINIMUM 1979-01-22 1979-01-22 1980-08-15 1980-12-15 1980-05-15
10TH PERCENTILE 0.020
MEDIAN 7.01 0.020 18.500 1. 6.
90TH PERCENTILE 5.000
MAXIMUM 9.59 11.000 999.900 1. 9.
DATE OF MAXIMUM 1979-12-15 1979-12-15 1980-06-15 1980-05-15 1980-08-15
STANDARD DEVIATION 3.13 3.520 456.476 0. 3.
K Ca
TOTAL DISS
19002 20101
mg/L K mg/L Ca
NO. OF L-FLAGGED VALUES 0 0
NO. OF G-FLAGGED VALUES 0 0
NO. OF UNFLAGGED VALUES 10 9
MEAN 5.7 5.558
MINIMUM 4.4 3.400
DATE OF MINIMUM 1980-05-15 1980-12-15
10TH PERCENTILE 4.4
MEDIAN 4.9 4.000
90TH PERCENTILE 8.0
MAXIMUM 8.4 9.200
DATE OF MAXIMUM 1980-12-15 1980-08-15
STANDARD DEVIATION 1.5 2.478
STATION - SIO RIVER STATION NO. 112009
COUNTRY - KENYA DEPTH(M) 9999.9
LOCATION - OCT. 3 LAT. 00/21/17 LONG. 034/10/58 ELEVATION(M)9999.9
REGIONAL CENTRE - AFRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1979-01-01 TO 1981-12-31
PERIOD OF RECORD FROM - 1979-03-13 TO 1981-02-27
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC O2 ALK pH Mg
COND DISS TOTAL DISS
02041 08102 10101 10302 12103
us/cm mg/L O2 mg/L pH UNITS 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 3 2 3 3 3
MEAN 222. 6.8 73.33 7.2 5.
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
P ORTHO Cl Ca Mn Fe
TOTAL DISS DISS DISS DISS
15205 17201 20101 25104 26104
mg/L P mg/L Cl 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 1 3 3 3 3
MEAN 0.048 13. 5.233 3.20 3.87
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
1GEMS/WATER - STATISTICAL SUMMARY BY STATION 2002-02-15 PAGE 395
STATION - NZOIA RIVER STATION NO. 112010
COUNTRY - KENYA DEPTH(M) 9999.9
LOCATION - OCT. 3 LAT. 00/14/12 LONG. 034/22/35 ELEVATION(M)9999.9
REGIONAL CENTRE - AFRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1979-01-01 TO 1981-12-31
PERIOD OF RECORD FROM - 1979-01-23 TO 1981-02-27
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
ELEC TEMP NH3 O2 COD
COND DISS
02041 02062 07555 08102 08301
us/cm deg C mg/L N 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 4 2 1 2 1
MEAN 208. 20.5 120.00 1.8 2.
MINIMUM 130.
DATE OF MINIMUM 1979-01-23
10TH PERCENTILE
MEDIAN 195.
90TH PERCENTILE
MAXIMUM 310.
DATE OF MAXIMUM 1981-01-22
STANDARD DEVIATION 92.
ALK pH pH Na Mg
TOTAL TOTAL TOTAL
10101 10301 10302 11002 12003
mg/L pH UNITS pH UNITS 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 2 2 2 5 2
MEAN 88.50 7.8 6.0 15. 3.
MINIMUM 10.
DATE OF MINIMUM 1980-06-15
10TH PERCENTILE
MEDIAN 12.
90TH PERCENTILE
MAXIMUM 20.
DATE OF MAXIMUM 1980-01-15
STANDARD DEVIATION 5.
Mg Si P ORTHO SULPHATE Cl
DISS REACTIVE DISS DISS
12103 14101 15255 16306 17201
mg/L Mg mg/LSiO2 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 2 3 4 1 2
MEAN 4. 8.98 41.375 6. 16.
MINIMUM 13.000
DATE OF MINIMUM 1980-11-15
10TH PERCENTILE
MEDIAN 33.250
90TH PERCENTILE
MAXIMUM 86.000
DATE OF MAXIMUM 1980-06-15
STANDARD DEVIATION 31.277
STATION - NZOIA RIVER STATION NO. 112010
COUNTRY - KENYA DEPTH(M) 9999.9
LOCATION - OCT. 3 LAT. 00/14/12 LONG. 034/22/35 ELEVATION(M)9999.9
REGIONAL CENTRE - AFRA WATER TYPE RIVER
PERIOD REQUESTED FROM - 1979-01-01 TO 1981-12-31
PERIOD OF RECORD FROM - 1979-01-23 TO 1981-02-27
STATISTICS INCLUDE ALL FLAGGED DATA AS REPORTED
Cl K Ca Mn Fe
DISS TOTAL DISS TOTAL TOTAL
17203 19002 20101 25004 26004
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 2 5 4 2 2
MEAN 4. 5.1 6.550 0.25 3.35
MINIMUM 2.8 3.200
DATE OF MINIMUM 1980-06-15 1980-11-15
10TH PERCENTILE
MEDIAN 5.1 6.450
90TH PERCENTILE
MAXIMUM 6.4 10.100
DATE OF MAXIMUM 1980-11-15 1981-02-27
STANDARD DEVIATION 1.5 2.843
INST
DISCHG
97160
m3/S
NO. OF L-FLAGGED VALUES 0
NO. OF G-FLAGGED VALUES 0
NO. OF UNFLAGGED VALUES 2
MEAN 8.1
MINIMUM
DATE OF MINIMUM
10TH PERCENTILE
MEDIAN
90TH PERCENTILE
MAXIMUM
DATE OF MAXIMUM
STANDARD DEVIATION
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