Society Sewage & STP Charges
RWA CAM breakdown, NGT STP compliance, GST on maintenance, vs municipal water.
The 60-second version
Society sewage and STP (sewage treatment plant) charges appear on RWA maintenance bill — separate from BWSSB water. I verify STP NGT compliance, CAM breakdown, and GST on maintenance.
STP charge is society-level — not on municipal water bill
Large apartments run on-site STP per NGT/CPCB norms — cost is apportioned across flats in CAM (common area maintenance) invoice from RWA.
Returning NRI buyers should ask for STP O&M contract, AMC vendor, and last NGT inspection report at handover.
Sewage charge ≠ water charge — BWSSB bills water intake; society bills treatment + pumping to municipal sewer.
Maintenance: society maintenance guide.
Maintenance bill line items
| Line item | Who bills | Typical share |
|---|---|---|
| Water intake | Municipal / bulk | Per flat sq ft or meter |
| STP O&M | RWA CAM | ₹500–3,000/month |
| Sewer to municipal | RWA or municipal | City-dependent |
| DG + lift | RWA CAM | Separate line |
| GST on maintenance | RWA if turnover > threshold | 18% on taxable services |
STP charge verification sequence
Request CAM breakdown
Written split at sale / handover.
STP vendor contract
AMC cost should match RWA line item.
NGT compliance
Ask RWA for latest CPCB test report.
RWA membership
Register as owner for AGM voting on hikes.
Dispute arrears
Clear builder dues before RWA transfer.
Billing layers
Handover STP kit
- CAM breakdown.
- STP AMC contract.
- CPCB test report.
- RWA bye-laws.
- GST invoice format.
Need help with Move Planning?
Share your blocker in one line. Our experts will reply with practical next steps.
CAM hike votes
Major STP capex needs AGM approval — check if reserve fund covers replacement.
Quick visual
Animated decision map
Community signal
What to watch in real discussions
Search community threads for the exact phrase, then treat repeated complaints as risk signals rather than official advice.
Open nofollow community search ->Interactive checkpoint
Turn this guide into a decision file
0 of 4 checked
Tenant pays STP?
Usually via maintenance reimbursement in rent agreement.
STP on property tax?
No — property tax is municipal; STP is society O&M.
Non-occupancy discount?
RWA bye-laws vary — often 10–25% off CAM if vacant.
GST on maintenance?
If RWA turnover > ₹20L — 18% on taxable maintenance services.
Builder still billing?
Post OC handover, RWA should bill — refuse duplicate.
STP failure smell?
NGT can penalise RWA — owner can escalate to pollution board.
The plan is only as good as the sequence.
Tax, banking, schools, shipping — they all have dependencies. A wrong order costs months and lakhs. Get it right.