West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: Ground water at Matigara Bazaar | River Basin: GANGA | CPCB Station Code: 4721 |
| Sample Date: 20/04/2022 | Sample Time: 14:05 | |
| Human Activities: None | Weather: Sunny and Clear. | Water Body: Well |
| Frequency Of Monitoring: Halfyearly | Use Based Class: A | Approximate Depth(Bottom/Table): 2.00 m |
| Color & Intensity: Clear | Odour: Odour free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Nitrate-N | 0.20 | mg/l |
| Sodium | 18.40 | mg/l |
| Lead | BDL | mg/l |
| Methyl Parathion | BDL | ppb |
| BOD | 0.80 | mg/l |
| Conductivity | 97.62 | µs/cm |
| Fecal Coliform | NIL | MPN/100ml |
| pH | 6.51 | Unit |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | NIL | MPN/100ml |
| Boron | 4.23 | mg/l |
| Calcium | 4.00 | mg/l |
| Chloride | 2.93 | mg/l |
| COD | 4.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 2.91 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 2.60 | mg/l |
| Sulphate | 13.92 | mg/l |
| Total Alkalinity | 50.00 | mg/l |
| Total Dissolved Solids(TDS) | 67.00 | mg/l |
| Total Fixed Solids(TFS) | 90.00 | mg/l |
| Total Hardness as CaCo3 | 22.00 | mg/l |
| Total Suspended Solids(TSS) | 3.00 | mg/l |
| Turbidity | 22.10 | NTU |
| Arsenic | BDL | mg/l |
| Cadmium | BDL | mg/l |
| Chromium Total | BDL | mg/l |
| Copper | BDL | mg/l |
| Iron | 3.90 | mg/l |
| Mercury | BDL | mg/l |
| Nickel | BDL | mg/l |
| Zinc | BDL | mg/l |
| a-BHC | BDL | ppb |
| a-Endosulphan | BDL | ppb |
| Aldrin | BDL | ppb |
| Anilophos | BDL | ppb |
| b-Endosulphan | BDL | ppb |
| Chlorpyriphos | BDL | ppb |
| Dieldrin | BDL | ppb |
| g-BHC | BDL | ppb |
| Malathion | BDL | ppb |
| o,p-DDT | BDL | ppb |
| p,p-DDT | BDL | ppb |
| Ammonia-N | BDL | mg/l |