West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: KOCHBIHAR LAKE (SAGAR DIGHI) | River Basin: Raidak_Torsa | CPCB Station Code: 2519 |
| Sample Date: 19/08/2019 | Sample Time: 15:10 | |
| Human Activities: Bathing | Weather: Sunny and Clear | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green and Muddy | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.80 | mg/l |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 0.006 | mg/l |
| Calcium | 12.83 | mg/l |
| Chloride | 10.76 | mg/l |
| Magnesium | 2.88 | mg/l |
| Turbidity | 2.79 | NTU |
| Phenolpthalein Alkanity | NIL | mg/l |
| Total Alkalinity | 42.0 | mg/l |
| Conductivity | 70.83 | µs/cm |
| Dissolved O2(DO) | 7.2 | mg/l |
| Fecal Coliform | 2700 | MPN/100ml |
| Nitrate-N | 0.40 | mg/l |
| pH | 7.67 | Unit |
| Temperature | 28 | ⁰C |
| Phosphate-P | 0.007 | mg/l |
| COD | 17.89 | mg/l |
| Fluoride | BDL | mg/l |
| Potassium | 1.20 | mg/l |
| Sodium | 2.40 | mg/l |
| Total Dissolved Solids(TDS) | 60.0 | mg/l |
| Total Fixed Solids(TFS) | 62.00 | mg/l |
| Ammonia-N | BDL | mg/l |
| Total Hardness as CaCo3 | 50.0 | mg/l |
| Sulphate | 5.06 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 34.0 | mg/l |