WATER QUALITY DATA 2010 | CPCB ENVIS
WATER QUALITY OF TRIBUTARY STREAMS TEESTA, DIKCHU, MANEY KHOLA, RANICHU, KUNDLI, DIKHOW, KOHORA, BOGINADI, RANGA, PACHNAI, KAPILI, BEKI, SANKOSH, BARAK,  SONAI, KUSHIYARA & KAROLA - 2010
STATION CODE LOCATIONS TEMPERATURE şC D.O. (mg/l) pH CONDUCTIVITY (µmhos/cm) B.O.D. (mg/l) NITRATE- N (mg/l) NITRITE- N (mg/l) FECAL COLIFORM (MPN/100ml) TOTAL COLIFORM (MPN/100ml)
Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean
WATER QUALITY CRITERIA       > 4 mg/l 6.5-8.5 < 2250 µmhos/cm < 3 mg/l             < 2500 MPN/100ml < 5000 MPN/100ml
1801 RIVER TEESTA A/C OF RIVERS LACHENCHU AND LACHUNGCHU AT CHUNGTHAANG 20 28 22.8 7 8.4 7.7       98.7 592 263 0.4 1.6 0.7             24 50 35 140 240 183
1807 RIVER TEESTA AFTER CONFLUENCE WITH RIVER RANICHU AT SINGTAM 16 24 19.8 6 6.5 6.2       260 320 283 2 4.5 3.3 2.1 2.9 2.5       24 70 40 140 280 201
1808 RIVER TEESTA A/C WITH RANGICHU AFTER MEETING THE INDUSTRIAL EFFLUENTS FROM THE TOWN RA 14 22 18.5 6 7 6.4       260 300 277 2.3 4.6 3.5 2 3.8 2.5       2000 9000 5750 4000 500000 131000
1809 RIVER TEESTA AT MELLI DOWNSTREAM, SIKKIM 14 22 18.1 6 7 6.3       260 300 278 2.3 4.5 3.4 2 3 2.4       2000 11000 7000 7000 22000 12750
1947 TEESTA AT SILIGURI 14 22 18.8 7.9 8.2 8.1 7.5 7.62 7.6 64 97 78 2.1 4.4 3.0 0.03 0.55 0.3       11000 33000 18667 14000 220000 83667
1802 RIVER DIKCHU B/C WITH RIVER TEESTA NEAR NHPC HYDROELECTRIC POWER PROJECT, SIKKIM 20 26 23.2 6 6.5 6.4       260 280 273 2.3 4.5 3.5 2 3.2 2.4             0 300 150
1803 RIVER MANEY KHOLA AT BURTUK NEAR ARMY BASE CAMP, 4 KM        U/S OF GANGTOK, SIKKIM 18 30 23.3 6 7 6.5       260 300 283 2.4 4.4 3.5 2 3.2 2.5                  
1804 RIVER MANEY KHOLA A/C WITH RAY KHOLA AT ADAMPOOL AFTER MEETING WASTE OF STP, GANGTOK  20 28 23.0 6 7 6.3       260 300 283 2 4.5 3.6 2 3.2 2.7       23 140 96 60 500 285
1805 AFTER CONFLUENCE OF RANICHU AND RORACHU AT RANIPOOL, SIKKIM 18 25 22.3 6 6.5 6.3       230 320 286 2.1 4.4 3.3 2.1 3.2 2.5       22 130 44 40 300 137
1806 RANICHU BEFORE CONFLUENCE WITH RIVER TEESTA AT SINGTAM, SIKKIM 18 24 20.5 6 6.5 6.3       230 320 286 2.3 4.5 3.4 2.1 2.8 2.4       26 80 49 60 220 121
2229 KUNDLI RIVER AT KUNDLI/ SAPAKHOWA, SADIA. 18 26 23 6.1 8.4 7.6 6.7 7.7 7.1 138 214 174 0.7 2.9 1.7 0.1 0.13 0.1                  
2231 DIKHOW RIVER AT DIKHOW BRIDGE SIVASAGAR 20 27 25 5.6 7.7 6.3 7.1 7.5 7.3 85 178 142 1.7 2.7 2.1 0.1 0.11 0.1             1 360 166
2232 KOHORA RIVER AT N.H. CROSSING, KOHORA 23 30 27 5.6 6.8 6.3 7 7.4 7.3 59 222 143 3 4.8 3.6 0.1 0.1 0.1             300 720 573
2233 BOGINADI NEAR BRIDGE NH-52, LAKHIMPUR 18 27 21 8.1 8.5 8.3 6.7 7.4 7.1 104 156 130 2.4 4.8 3.9 0.1 0.15 0.1             300 760 552
2234 RANGA NADI D/S OF HYDEL PROJECT 19 29 23 7.8 8.5 8.2 7 7.4 7.2 130 205 163 1.9 5 3.4 0.1 0.16 0.1       22 90 41 70 280 135
2236 KAPILI RIVER AT DHARMTUL BRIDGE, NH-31, NAGAON 20 27 25 5.6 8.4 7.2 6.8 7.3 7.1 59 144 100 1.2 2.1 1.8 0.1 0.11 0.1             1 360 240
2238 BEKI RIVER AT NH-37 CROSSING AT BARPETA ROAD 20 27 24 5.1 7.2 6.5 6.9 7.7 7.2 83 291 165 3 5.1 4.3 0.1 0.13 0.1       0 360 30 300 3000 944
2239 SANKOSH RIVER, DHUBRI 20 27.5 24 6.8 8.1 7.2 6.8 7.4 7.2 88 128 115 1.1 3 2.1 0.1 0.12 0.1       21 50 33 140 240 182
2240 BARAK RIVER AT D/S OF SILCHAR 8 14 10 7.1 7.2 7.2 7 7.4 7.2 59 162 115 3.1 5.4 3.8 0.1 0.12 0.1       0 300 25 300 1100 563
2241 SONAI RIVER AT SONAI 8 14 10 7 7.4 7.2 6.9 7.3 7.1 35 160 91 0.9 4.5 3.0 0.1 0.16 0.1       24 50 35 140 250 190
2242 KUSHIARA RIVER AT KARIMGANJ 7 13 10 7.2 7.3 7.2 6.8 7.5 7.2 86 181 132 2 3.5 2.5 0.1 0.13 0.1                  
2523 KAROLA, D/S OF JALPAIGURI, NEAR MIN BHAWAN 10 28 23.5 6.5 7.9 7.1 6.98 7.23 7.1 58 105 83 1.3 3.1 2.4 0.06 0.47 0.3             0 300 150