West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: MIRIKH LAKE | River Basin: Tista | CPCB Station Code: 2520 |
| Sample Date: 21/05/2019 | Sample Time: 13:00 Hrs | |
| Human Activities: Boating,Horse Riding. | Weather: Sunny and Clear | Water Body: Mirikh lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green. | Odour: Nauseating. | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 3.80 | mg/l |
| Conductivity | 148.60 | µs/cm |
| Dissolved O2(DO) | 7.70 | mg/l |
| Fecal Coliform | 7000 | MPN/100ml |
| Nitrate-N | 0.36 | mg/l |
| pH | 7.16 | Unit |
| Temperature | 19 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 0.005 | mg/l |
| Calcium | 18.44 | mg/l |
| Chloride | 20.55 | mg/l |
| COD | 24.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 20.16 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | 5.50 | mg/l |
| Sodium | 21.40 | mg/l |
| Sulphate | 6.84 | mg/l |
| Total Alkalinity | 68.00 | mg/l |
| Total Dissolved Solids(TDS) | 94.00 | mg/l |
| Total Fixed Solids(TFS) | 16.0 | mg/l |
| Total Hardness as CaCo3 | 116.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 66.00 | mg/l |
| Turbidity | 9.73 | NTU |