WATER QUALITY OF TRIBUTARY STREAMS TEESTA, DIKCHU, MANEY KHOLA, RANICHU, KUNDLI, DIKHOW, KOHORA, BOGINADI, RANGA, PACHNAI, KAPILI, BEKI, SANKOSH, BARAK,  SONAI, KUSHIYARA KAROLA & KALJANI - 2009  | ENVIS CPCB
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 TEESTA A/C OF RIVERS LACHENCHU AND LACHUNGCHU AT CHUNGTHAANG, SIKKIM       8 12 10.4 6 7.2 6.5 230 270 250 2 3.5 2.5 2 3.5 2.6       60 190 112 90 260 188
1807 TEESTA A/C WITH RIVER RANICHU AT SINGTAM       9 12.5 11.1 6 7 6.6 230 280 257 2.5 3.5 3.0 2.3 3.5 2.9       80 200 142 170 350 244
1808 TEESTA A/C WITH RANGICHU AFTER MEETING THE INDL EFFS FROM THE TOWN RA       9 12.5 11.1 6 7 6.5 240 290 262 2 3.5 3.0 2.4 3.5 3.0       80 170 135 170 350 246
1809 RIVER TEESTA AT MELLI DOWNSTREAM, SIKKIM       9 12.4 10.9 6 7 6.5 250 290 269 2.7 3.5 3.3 2.5 3.5 3.2       80 180 137 170 350 270
1947 TEESTA AT SILIGURI 14 24 19 8 9.9 8.8 7.2 7.8 7.5 77 640 223 1.1 3.1 2.1 0.1 0.2 0.13       200 110000 32800 4000 220000 65500
1802 DIKCHU B/C WITH TEESTA NEAR NHPC HYDROELECTRIC POWER PROJECT, SIKKIM       2.5 12.5 9.9 6 6.8 6.5 220 280 251 2 3.5 2.6 2 3.5 2.8       10 170 103 130 280 216
1803 MANEY KHOLA AT BURTUK NEAR ARMY BASE CAMP, 4 KM U/S OF GANGTOK, SIKKIM       9 12 11.0 6.2 7 6.7 240 280 256 2.2 3.2 2.6 2.4 3.5 2.8       40 140 101 80 280 213
1804 MANEY KHOLA A/C WITH RAY KHOLA AT ADAMPOOL AFTER MEETING WASTE OF STP, GANGTOK D       9.5 12.5 11.3 6 7 6.6 250 280 262 2 3.2 2.6 2 3.2 2.6       60 200 127 110 350 233
1805 A/C OF RANICHU AND RORACHU AT RANIPOOL, SIKKIM       8.5 12 11.0 6 7.2 6.6 240 270 255 2 3.5 2.6 2 3.2 2.6       60 150 102 170 280 225
1806 RANICHU B/C WITH TEESTA AT SINGTAM, SIKKIM       8.5 12 11.0 6 7 6.6 230 280 258 2.5 3.5 2.9 2 3.2 2.7       50 180 124 170 280 237
2229 KUNDLI RIVER AT KUNDLI/ SAPAKHOWA, SADIA. 12 26 20 6.4 8.5 7.7 7.2 7.5 7.3 102 259 176 1.7 3.9 2.6 0.1 0.2 0.13       0 360 90 1 730 273
2231 DIKHOW RIVER AT DIKHOW BRIDGE SIVASAGAR 18 28 24 4.5 7.2 5.7 6.9 7.5 7.2 90 200 136 0.5 1.6 1.0 0.1 0.1 0.10       0 0 0 300 700 433
2232 KOHORA RIVER AT N.H. CROSSING, KOHORA 22 31 28 4.9 6.9 6.2 7.2 7.3 7.3 128 230 180 1 2.2 1.4 0.1 0.25 0.14       0 0 0 1 1100 440
2233 BOGINADI NEAR BRIDGE NH-52, LAKHIMPUR 18 28 25 7.8 8.4 8.0 6.6 7.1 6.8 98 198 136 0.3 4.6 2.3 0.1 0.32 0.16       0 0 0 1 1 1
2234 RANGA NADI D/S OF HYDEL PROJECT 18 28 24 7.6 8.4 8.0 6.6 7.4 6.9 96 198 139 0.7 5.3 2.8 0.1 0.33 0.16       0 0 0 1 360 91
2235 PANCHNAI RIVER AT NH-52 CROSSING, ORANG 18 26 23 8.3 8.5 8.4 7 7.9 7.5 98 129 114 0.9 3.4 1.7 0.1 0.2 0.14       0 300 100 700 730 710
2236 KAPILI RIVER AT DHARMTUL BRIDGE, NH-31, NAGAON 15 31 25 6.3 7.5 6.7 6.2 7.2 6.8 80 610 218 0.6 2.7 1.6 0.1 0.1 0.10       0 0 0 1 730 433
2238 BEKI RIVER AT NH-37 CROSSING AT BARPETA ROAD 24 29 27 6.4 7 6.7 6.5 7.5 7.0 76 153 116 0.7 4.9 3.0 0.1 0.1 0.10       0 360 90 300 720 420
2239 SANKOSH RIVER, DHUBRI 23 30 26 5.8 6.7 6.4 6.9 7.3 7.1 107 123 117 0.6 5.9 2.2 0.1 0.1 0.10       0 0 0 300 730 438
2240 BARAK RIVER AT D/S OF SILCHAR 10 10 10 7.1 7.2 7.1 6.8 7 6.9 69 137 100 1.3 2.4 1.9 0.1 0.1 0.10       0 1100 550 730 2300 1515
2241 SONAI RIVER AT SONAI 10.1 15 12 7 7.2 7.1 6.7 7.5 7.1 71 189 113 1.1 3.6 2.0 0.1 1.12 0.42       0 360 90 360 1100 638
2242 KUSHIARA RIVER AT KARIMGANJ 10 18 13 6.8 7.2 7.0 6.6 7.3 7.0 81 160 105 1.2 2.9 2.0 0.1 0.43 0.19       0 360 90 360 1500 730
2523 KAROLA, D/S OF JALPAIGURI, NEAR MIN BHAWAN 28 28 28 6.9 6.9 6.9 6.8 6.8 6.8 80 80 80 2.5 2.5 2.5 0.1 0.1 0.10       4000 4000 4000 8000 8000 8000
2524 KALJANI D/S OF ALIPURDWAR, MUNICIPALITY DISCHARGE POINT 32 32 32 7 7 7.0 7.3 7.3 7.3 151 151 151 2.3 2.3 2.3 0.16 0.16 0.16       11000 11000 11000 14000 14000 14000