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: 26/04/2019 | Sample Time: 15:40 | |
| Human Activities: Bathing, Washing. | Weather: Hot and Humid | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 8.10 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Fluoride | BDL | mg/l |
| Magnesium | 1.73 | mg/l |
| Total Fixed Solids(TFS) | 16.0 | mg/l |
| Total Hardness as CaCo3 | 26.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 80.00 | mg/l |
| Turbidity | 6.42 | NTU |
| Arsenic | BDL | µg/l |
| a-Endosulphan | NT | ppb |
| Aldrin | NT | ppb |
| Anilophos | BDL | ppb |
| b-Endosulphan | NT | ppb |
| Dieldrin | NT | ppb |
| g-BHC | NT | ppb |
| Malathion | BDL | ppb |
| Methyl Parathion | BDL | ppb |
| o,p-DDT | NT | ppb |
| Ammonia-N | BDL | mg/l |
| Conductivity | 78.12 | µs/cm |
| Nitrate-N | 0.47 | mg/l |
| Temperature | 26 | ⁰C |
| Cadmium | BDL | µg/l |
| Copper | BDL | µg/l |
| Iron | BDL | mg/l |
| Lead | BDL | µg/l |
| Mercury | BDL | µg/l |
| Nickel | BDL | µg/l |
| Zinc | BDL | µg/l |
| Chromium Total | BDL | µg/l |
| Chlorpyriphos | NT | ppb |
| pH | 8.02 | Unit |
| Total Coliform | 13000 | MPN/100ml |
| Calcium | 8.01 | mg/l |
| Chloride | 19.57 | mg/l |
| BOD | 2.80 | mg/l |
| COD | 36.00 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 1.40 | mg/l |
| Sulphate | 2.66 | mg/l |
| Total Alkalinity | 42.00 | mg/l |
| Boron | 0.006 | mg/l |
| a-BHC | BDL | ppb |
| Total Dissolved Solids(TDS) | 62.00 | mg/l |
| p,p-DDT | NT | ppb |