West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: MAHANANDA AT SILIGURI | River Basin: Mahananda | CPCB Station Code: 1946 |
Sample Date: 14/02/2020 | Sample Time: 11:00 hrs | |
Human Activities: Bathing,Washing,Fishing,discarded idols on banks | Weather: Sunny and Clear | Water Body: Mahananda at Siliguri |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Green and Turbid | Odour: Septic | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Phenolpthalein Alkanity | NIL | mg/l |
Total Alkalinity | 74.00 | mg/l |
Total Dissolved Solids(TDS) | 234.00 | mg/l |
Total Fixed Solids(TFS) | 168.00 | mg/l |
Potassium | 5.00 | mg/l |
Dissolved O2(DO) | 6.90 | mg/l |
Calcium | 18.43 | mg/l |
Total Suspended Solids(TSS) | 128.00 | mg/l |
Nitrate-N | 1.44 | mg/l |
Fecal Coliform | 12000 | MPN/100ml |
COD | 21.00 | mg/l |
Total Hardness as CaCo3 | 76.00 | mg/l |
pH | 7.11 | Unit |
Temperature | 22 | ⁰C |
Total Coliform | 34000 | MPN/100ml |
Boron | 19.96 | mg/l |
Chloride | 2.93 | mg/l |
Fluoride | 0.35 | mg/l |
Magnesium | 8.64 | mg/l |
Phosphate-P | 0.003 | mg/l |
Sodium | 9.40 | mg/l |
Sulphate | 18.52 | mg/l |
Ammonia-N | 0.66 | mg/l |
BOD | 2.20 | mg/l |
Conductivity | 146.70 | µs/cm |
Turbidity | 31.60 | NTU |