The information provided here in the site should be used as a starting point for understanding the legislation about wastewater. The reader is advised to make their own enquiry about the current laws as applicable from time to time.
CPCB Sewage Discharge Standards
Central Pollution Control Board (CPCB) is the regulatory authority and mandates the treated water quality for any STP in India. The discharge standards stipulated in 2015 have been diluted making it easier for STP owners. The changed norms are:
Discharge standards revised on 13-10-2017
| Parameter | Units | Old | Revised | Outside capital city |
|---|---|---|---|---|
| pH | 6.0 to 8.5 | 6.5 to 9.0 | 6.5 to 9.0 | |
| BOD | Mg/L | 10 | < 20 | < 20 |
| TSS | Mg/L | 10 | < 50 | < 100 |
| Fecal Coliform | MPN | NIL | < 1000 | < 100* |
How does it impact you? / What it means to you as STP owner?
1. You no longer need advanced membrane filtration equipment like Ultra-Filtration. Any properly designed and operated STP can give you out put to meet the revised norms. This saves you on capital cost & operating cost.
2. You do not need multiple dis-infection equipment like UV / Ozonation etc. Proper chlorination will be sufficient to meet the Fecal Coliform standard of less than 1000 in 100 ml sample.
3. *If you are located outside state capital, the standard for Total Suspended solids is lower at 100 Mg/L. This means there is no need for Pressure Sand Filter to reduce suspended solids. This reduces the operation and maintenance by 50%. If the plant is automatic, there is no need for a dedicated operator. This saves trouble of getting trained manpower for STP operation along with huge cost.
For more details check out this link:
New STP norms come as a relief to flat owners – Read the Bangalore Mirror Article Here
You can download the GO from the download brochure link below.
Consent – CFE / CFO
Consent for Establishment (CFE) / Environmental Clearance
Consent for Establishment / No objection Certificate from the State Pollution Control Board (PCB) is required for all residential projects more than 25 units. For bigger projects the application has to be submitted to Ministry of Environment and Forests (MoEF) and obtain Environmental Clearance. For more details contact your local Pollution Control Board. You may also check useful links on this website.
