West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: WATER RESERVIOR AT DELO | River Basin: Tista | CPCB Station Code: 2521 |
| Sample Date: 23/04/2019 | Sample Time: 14:00 | |
| Human Activities: Water Abstraction | Weather: Clear and Sunny | Water Body: Delo lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Clear and Light Green | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 48.24 | µs/cm |
| Boron | 0.004 | mg/l |
| Calcium | 4.81 | mg/l |
| Chloride | 12.72 | mg/l |
| Turbidity | 7.86 | NTU |
| Cadmium | BDL | µg/l |
| Sulphate | 1.06 | mg/l |
| Total Dissolved Solids(TDS) | 22.00 | mg/l |
| Chromium Total | BDL | µg/l |
| Copper | BDL | µg/l |
| Total Fixed Solids(TFS) | 8.0 | mg/l |
| Total Hardness as CaCo3 | 24.00 | mg/l |
| Iron | BDL | mg/l |
| Lead | BDL | µg/l |
| Mercury | BDL | µg/l |
| b-Endosulphan | NT | ppb |
| COD | 12.00 | mg/l |
| Total Alkalinity | 26.00 | mg/l |
| Zinc | BDL | µg/l |
| a-BHC | BDL | ppb |
| Aldrin | BDL | ppb |
| Anilophos | BDL | ppb |
| Chlorpyriphos | NT | ppb |
| Dieldrin | NT | ppb |
| g-BHC | NT | ppb |
| Malathion | BDL | ppb |
| Methyl Parathion | NT | ppb |
| o,p-DDT | NT | ppb |
| p,p-DDT | BDL | ppb |
| Dissolved O2(DO) | 8.10 | mg/l |
| Fecal Coliform | 230 | MPN/100ml |
| Nitrate-N | 0.11 | mg/l |
| pH | 7.12 | Unit |
| Temperature | 18 | ⁰C |
| Total Coliform | 500 | MPN/100ml |
| a-Endosulphan | NT | ppb |
| Fluoride | BDL | mg/l |
| Magnesium | 3.46 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 3.36 | mg/l |
| Total Suspended Solids(TSS) | 16.00 | mg/l |
| Arsenic | BDL | µg/l |
| Nickel | BDL | µg/l |