| WATER QUALITY DATA 2011 |CPCB ENVIS | ||||||||||||||||||||||||||
| WATER QUALITY OF RIVER BRAHMAPUTRA-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 | |||||||||||||||||||||
| 1260 | BRAHMAPUTRA AT KHERGHAT (A/ C DIBANG & DIHANG) | ASSAM | 18.0 | 28.0 | 23.3 | 6.8 | 9.0 | 7.9 | 7.0 | 7.6 | 7.3 | 91 | 175 | 128 | 0.3 | 9.2 | 2.6 | 0.10 | 0.21 | 0.13 | 0 | 360 | 180 | 300 | 2800 | 1149 |
| 1030 | BRAHMAPUTRA AT DIBRUGARH | ASSAM | 18.0 | 28.0 | 23.2 | 6.2 | 8.8 | 8.4 | 6.7 | 7.7 | 7.3 | 94 | 197 | 148 | 0.5 | 3.8 | 2.1 | 0.10 | 0.30 | 0.14 | 0 | 360 | 142 | 300 | 9300 | 1561 |
| 1262 | BRAHMAPUTRA AT NIMATIGHAT | ASSAM | 17.0 | 28.0 | 23.8 | 4.4 | 7.5 | 6.4 | 6.1 | 7.6 | 7.1 | 71 | 205 | 151 | 0.3 | 3.0 | 1.5 | 0.10 | 0.20 | 0.12 | 0 | 700 | 124 | 1 | 3500 | 780 |
| 1526 | BRAHMPUTRA AT DHENUKHAPAHAR | ASSAM | 19.0 | 29.0 | 24.3 | 7.1 | 8.9 | 7.7 | 6.8 | 8.5 | 7.5 | 112 | 210 | 152 | 0.8 | 4.1 | 2.1 | 0.10 | 0.30 | 0.16 | 0 | 1100 | 160 | 0 | 2900 | 982 |
| 1031 | BRAHMAPUTRA AT PANDU | ASSAM | 18.0 | 30.5 | 25.4 | 6.4 | 8.8 | 7.3 | 6.9 | 7.9 | 7.3 | 108 | 238 | 159 | 0.5 | 2.7 | 1.5 | 0.10 | 0.30 | 0.15 | 0 | 1100 | 386 | 300 | 3500 | 1545 |
| 1299 | BRAHMAPUTRA AT JOGIJHOGA | ASSAM | 18.0 | 32.0 | 26.8 | 5.7 | 8.2 | 7.0 | 6.6 | 7.6 | 7.2 | 68 | 68 | 194 | 1.0 | 4.1 | 2.3 | 0.10 | 0.30 | 0.13 | 0 | 730 | 154 | 300 | 15000 | 2225 |
| 2069 | BRAHMPUTRA NEAR WATER INTAKE PT AT KACHARIGHAT, PANBAZAR | ASSAM | 19.0 | 30.0 | 25.3 | 5.9 | 8.4 | 7.0 | 7.2 | 7.9 | 7.5 | 124 | 206 | 156 | 0.7 | 3.8 | 1.7 | 0.10 | 0.17 | 0.12 | 0 | 360 | 220 | 360 | 1500 | 740 |
| 2064 | BRAHMAPUTRA AT CHANDRAPUR | ASSAM | 19.0 | 31.0 | 26.4 | 6.0 | 9.0 | 7.4 | 7.1 | 7.8 | 7.4 | 115 | 202 | 153 | 0.4 | 3.4 | 1.9 | 0.10 | 0.17 | 0.12 | 0 | 300 | 200 | 0 | 730 | 363 |
| 2067 | BRAHMPUTRA AT SUALKUCHI | ASSAM | 20.0 | 29.0 | 26.0 | 6.5 | 8.6 | 7.8 | 7.0 | 7.8 | 7.3 | 133 | 209 | 169 | 0.8 | 1.6 | 1.1 | 0.10 | 0.30 | 0.16 | 0 | 1500 | 600 | 300 | 4300 | 1837 |
| 2066 | BRAHMAPUTRA AT DHUBRI | ASSAM | 21.0 | 32.0 | 27.4 | 6.5 | 7.2 | 6.9 | 6.7 | 7.8 | 7.2 | 113 | 188 | 147 | 1.1 | 2.0 | 1.6 | 0.10 | 0.10 | 0.10 | 0 | 300 | 200 | 300 | 1500 | 720 |