
π΄ Non-Functional Sewage Treatment Plants (STPs): A Hidden Crisis in Housing Societies
In India, the law mandates that residential societies above a certain size must install sewage treatment plants (STPs) to manage wastewater sustainably. As a result, most modern housing societies comply by setting up STPs β but installation alone is not the solution.
π« The Real Problem Begins After Installation:
Once the society receives its Occupancy Certificate (OC), the urgency to operate the STP often fades. This leads to STPs lying idle, poorly maintained, or run at sub-optimal levels.
π° Why Do STPs Become Non-Functional?
- High Operational Costs
- Running an STP involves:
- Skilled manpower
- Regular energy consumption (electric motors, pumps, blowers)
- Chemical usage for treatment
Maintenance contracts :
For many societies, this becomes a monthly burden on their already stretched maintenance budgets.
Lack of Technical Expertise :
Societies often do not have an in-house engineer or trained facility manager. As a result, they're dependent on external vendors who may be irregular, expensive, or unaccountable.
Reactive Rather Than Preventive Mindset:
Many societies only act when the STP breaks down, emits foul odors, or attracts legal notices. Preventive maintenance is rarely prioritized.
No Monitoring or Performance Check:
There's usually no system to track if the treated water meets environmental norms. Often, untreated or partially treated water is discharged, risking pollution and penalties.
Lack of Awareness Among Residents:
Most residents are unaware of how important the STP is. So when budgets are discussed, fund allocation for STP operations is the first to be cut.
β οΈ Consequences of Non-Functional STPs:
- Heavy fines from Pollution Control Boards (βΉ50, 000 to βΉ1 lakh or more per inspection).
- Environmental harm by releasing untreated sewage into natural water bodies.
- Foul smell and air quality issues around the premises.
- Water-logging and pipe damage due to untreated sludge build-up.
- Health risks for children and elderly due to bacterial contamination.
- Poor reputation of the society affecting real estate value.
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Summary:
Installing an STP is not enough β regular operation, skilled maintenance, and performance tracking are critical. When ignored, it becomes a liability instead of a sustainability asset.