| WATER QUALITY DATA 2011 | CPCB ENVIS | ||||||||||||||||||||||||||
| WATER QUALITY OF TRIBUTARY STREAMS TEESTA, DIKCHU, MANEY KHOLA, RANICHU, KUNDLI, DIKHOW, KOHORA, BOGINADI, RANGA, KAPILI, BEKI, SANKOSH, BARAK, SONAI, KUSHIYARA, KAROLA, KALJANI & PACHNAI - 2011 | ||||||||||||||||||||||||||
| STATION CODE | LOCATIONS | STATE | TEMPERATURE şC | D.O. (mg/l) | pH | CONDUCTIVITY (µmhos/cm) | B.O.D. (mg/l) | NITRATE- N+ 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 | |||
| WATER QUALITY CRITERIA | > 4 mg/l | 6.5-8.5 | < 3 mg/l | < 2500 MPN/100ml | < 5000 MPN/100ml | |||||||||||||||||||||
| 1801 | TEESTA A/C RIVERS LACHENCHU AND LACHUNGCHU AT CHUNGTHAANG | SIKKIM | 20.0 | 26.0 | 23.1 | 5.9 | 7.0 | 6.5 | 250 | 280 | 268 | 2.3 | 3.4 | 2.6 | 2.20 | 2.50 | 2.31 | 23 | 50 | 28 | 10 | 130 | 79 | |||
| 1807 | TEESTA A/C RANICHU AT SINGTAM | SIKKIM | 16.0 | 28.0 | 20.2 | 5.5 | 7.0 | 6.3 | 260 | 320 | 293 | 3.3 | 4.4 | 3.9 | 2.20 | 3.20 | 2.70 | 50 | 700 | 123 | 130 | 130 | 251 | |||
| 1808 | TEESTA A/C RANGICHU AFTER MEETING THE INDL EFFLUENTS FROM THE TOWN RANICHU | SIKKIM | 14.0 | 24.0 | 19.3 | 6.0 | 6.5 | 6.1 | 260 | 300 | 283 | 4.0 | 4.5 | 4.3 | 2.00 | 3.20 | 2.70 | 40 | 170 | 80 | 110 | 300 | 258 | |||
| 1809 | TEESTA AT MELLI DOWNSTREAM | SIKKIM | 14.0 | 14.0 | 18.6 | 6.0 | 6.5 | 6.2 | 270 | 310 | 288 | 3.5 | 3.5 | 4.3 | 2.10 | 3.80 | 2.80 | 60 | 170 | 101 | 140 | 900 | 404 | |||
| 1947 | TEESTA AT SILIGURI | WEST BENGAL | 14 | 24 | 19.083 | 8.0 | 10.0 | 8.6 | 7.0 | 7.9 | 7.3 | 108 | 114 | 111 | 0.3 | 6.2 | 2.9 | 0.05 | 0.45 | 0.25 | 11000 | 225000 | 77333 | 17000 | 390000 | 116167 |
| 1802 | DIKCHU B/C RIVER TEESTA NEAR NHPC HYDROELECTRIC POWER PROJECT, SIKKIM | SIKKIM | 20.0 | 28.0 | 22.9 | 6.0 | 6.8 | 6.4 | 270 | 280 | 278 | 2.0 | 3.4 | 2.4 | 2.00 | 2.50 | 2.30 | 22 | 60 | 27 | 40 | 140 | 91 | |||
| 1803 | MANEY KHOLA AT BURTUK NEAR ARMY BASE CAMP, 4 KM U/S OF GANGTOK, SIKKIM | SIKKIM | 18.0 | 30.0 | 22.4 | 6.0 | 7.0 | 6.5 | 260 | 320 | 293 | 2.3 | 4.2 | 3.2 | 2.00 | 3.10 | 2.32 | 23 | 80 | 35 | 50 | 170 | 114 | |||
| 1804 | MANEY KHOLA A/C RAY KHOLA AT ADAMPOOL AFTER MEETING WASTE OF STP, GANGTOK | SIKKIM | 18.0 | 23.1 | 23.1 | 6.0 | 6.8 | 6.2 | 230 | 280 | 256 | 2.4 | 3.8 | 3.3 | 2.00 | 2.50 | 2.37 | 26 | 70 | 37 | 60 | 170 | 132 | |||
| 1805 | AFTER CONFLUENCE OF RANICHU AND RORACHU AT RANIPOOL, SIKKIM | SIKKIM | 18.0 | 28.0 | 22.4 | 6.0 | 6.8 | 6.4 | 250 | 300 | 277 | 3.0 | 4.3 | 3.6 | 2.00 | 3.00 | 2.54 | 33 | 90 | 48 | 90 | 280 | 172 | |||
| 1806 | RANICHU BEFORE CONFLUENCE WITH RIVER TEESTA AT SINGTAM | SIKKIM | 16.0 | 25.0 | 20.9 | 6.0 | 6.5 | 6.2 | 240 | 300 | 283 | 3.2 | 4.5 | 3.8 | 2.00 | 3.00 | 2.53 | 30 | 110 | 52 | 80 | 240 | 190 | |||
| 2229 | KUNDLI AT KUNDLI/ SAPAKHOWA, SADIA. | ASSAM | 15 | 27 | 22 | 6.1 | 8.8 | 7.4 | 7.3 | 7.3 | 7.5 | 91 | 237 | 144 | 0.7 | 1.8 | 1.3 | 0.10 | 0.19 | 0.14 | 300 | 910 | 453 | |||
| 2231 | DIKHOW AT DIKHOW BDG SIVASAGAR | ASSAM | 20 | 27 | 23.5 | 4.5 | 7.2 | 7.2 | 6.8 | 7.5 | 7.2 | 90 | 228 | 150 | 0.4 | 2.1 | 1.6 | 0.10 | 0.30 | 0.15 | 0 | 360 | 90 | 1 | 2800 | 1003 |
| 2232 | KOHORA AT N.H. CROSSING, KOHORA | ASSAM | 18 | 36 | 29 | 5.9 | 7.5 | 6.7 | 6.8 | 7.3 | 7.1 | 51 | 115 | 76 | 0.7 | 3.4 | 1.8 | 0.10 | 0.17 | 0.12 | 0 | 360 | 90 | 270 | 4300 | 1493 |
| 2233 | BOGINADI NR BDG NH-52, LAKHIMPUR | ASSAM | 17.0 | 25.0 | 22.3 | 8.1 | 8.7 | 8.5 | 6.6 | 7.5 | 7.1 | 94 | 143 | 128 | 2.5 | 3.3 | 2.8 | 0.10 | 0.10 | 0.10 | 0 | 300 | 75 | 0 | 730 | 273 |
| 2234 | RANGA NADI D/S OF HYDEL PROJECT | ASSAM | 20.0 | 26.0 | 23.5 | 7.7 | 8.5 | 8.3 | 6.6 | 7.4 | 7.1 | 85 | 150 | 116 | 1.0 | 5.2 | 3.0 | 0.10 | 0.12 | 0.11 | 0 | 360 | 90 | 0 | 730 | 273 |
| 2236 | KAPILI AT DHARMTUL BRIDGE, NH-31, NAGAON | ASSAM | 26.0 | 28.0 | 27.0 | 6.3 | 9.0 | 7.3 | 6.4 | 6.5 | 6.5 | 74 | 92 | 85 | 1.2 | 2.0 | 1.5 | 0.10 | 0.11 | 0.10 | 0 | 910 | 455 | 1 | 2300 | 1001 |
| 2238 | BEKI AT NH-37 CROSSING AT BARPETA ROAD | ASSAM | 18.0 | 31.0 | 24.5 | 6.4 | 7.8 | 7.1 | 6.3 | 7.6 | 6.8 | 133 | 159 | 145 | 0.8 | 5.2 | 3.2 | 0.10 | 0.13 | 0.11 | 0 | 360 | 90 | 0 | 910 | 485 |
| 2239 | SANKOSH, DHUBRI | ASSAM | 22.0 | 31.0 | 27.5 | 6.4 | 7.1 | 6.9 | 7.0 | 7.9 | 7.4 | 67 | 126 | 98 | 0.4 | 1.2 | 0.7 | 0.10 | 0.16 | 0.14 | 0 | 910 | 228 | 0 | 916 | 230 |
| 2240 | BARAK AT D/S OF SILCHAR | ASSAM | 9.0 | 15.3 | 12.6 | 7.0 | 7.2 | 7.1 | 6.7 | 7.5 | 7.2 | 100 | 184 | 145 | 2.0 | 4.0 | 2.8 | 0.10 | 0.19 | 0.14 | 0 | 360 | 220 | 720 | 2000 | 1373 |
| 2241 | SONAI AT SONAI | ASSAM | 8.5 | 27.5 | 15.8 | 6.5 | 7.9 | 7.3 | 6.9 | 7.5 | 7.2 | 33 | 171 | 94 | 0.7 | 6.0 | 3.8 | 0.10 | 0.13 | 0.11 | 0 | 910 | 303 | 0 | 2300 | 887 |
| 2242 | KUSHIARA AT KARIMGANJ | ASSAM | 8.5 | 15.0 | 12.5 | 7.0 | 7.3 | 7.1 | 6.7 | 7.6 | 7.2 | 70 | 153 | 123 | 0.7 | 2.5 | 1.6 | 0.10 | 0.18 | 0.13 | 0 | 360 | 120 | 300 | 910 | 503 |
| 2523 | KAROLA, D/S OF JALPAIGURI, NEAR MIN BHAWAN | WEST BENGAL | 19.0 | 33.0 | 26.4 | 6.1 | 9.9 | 7.7 | 6.6 | 7.3 | 7.0 | 8 | 106 | 79 | 1.1 | 6.1 | 2.9 | 0.02 | 0.42 | 0.19 | 7000 | 260000 | 92818 | 11000 | 2200000 | 11000 |
| 2524 | KALJANI D/S OF ALIPURDWAR, MUNICIPALITY DISCHARGE POINT | WEST BENGAL | 19.0 | 32.0 | 26.1 | 6.3 | 8.6 | 7.4 | 6.6 | 7.6 | 7.2 | 125 | 182 | 139 | 0.8 | 4.7 | 2.7 | 0.03 | 0.36 | 0.19 | 8000 | 260000 | 72200 | 17000 | 320000 | 102100 |
| 2235 | PANCHNAI AT NH-52 CROSSING, ORANG | ASSAM | 18.0 | 24.0 | 21.5 | 8.2 | 8.6 | 8.4 | 6.7 | 8.2 | 7.5 | 94 | 134 | 110 | 0.5 | 5.3 | 2.0 | 0.10 | 0.13 | 0.11 | 0 | 2300 | 575 | 0 | 4300 | 1525 |