MBMC's ₹188.60 Crore Sewage Treatment Plant Proposal Explained

Wastewater treatment is essential to public health, environmental protection and the long-term management of a growing urban area. A recent report has raised questions about the performance of sewage treatment infrastructure in Mira Bhayandar and the proposed cost of bringing several facilities back to the required standard.

According to Loksatta's report published on 15 October 2026, MBMC has prepared a proposal worth ₹188.60 crore to renovate nine sewage treatment plants.

What is being proposed?

The report says that the nine facilities were constructed approximately seven to ten years ago using moving bed biofilm reactor (MBBR) technology.

Concerns have reportedly been raised about their operating capacity and wastewater-treatment performance. The proposed renovation would address structural condition, machinery repairs, electrical systems and monitoring controls.

Why does wastewater treatment matter?

Sewage treatment removes contaminants from wastewater before it is discharged or reused under the applicable conditions.

When treatment facilities fail to operate as intended, the consequences can include environmental pollution, odour complaints and risks to water quality. Actual impacts depend on the condition of the facilities, the wastewater involved and how it is handled.

Residents should avoid assuming that every treatment plant has failed equally. Plant-specific performance records are needed to establish the extent of the problem.

What does MBMC's official information say?

MBMC's website also describes an underground drainage project under AMRUT 2.0. The published brief identifies administrative approval of ₹66.81 crore for Phase 2, Part 2, including a 6.5-million-litre-per-day sewage treatment plant and approximately 10 kilometres of sewer pipelines.

What should residents ask?

The key questions are straightforward:

• What are the operating results for each of the nine plants?
• Which equipment or structures require repair?
• How much has already been spent on the original facilities?
• What technical evaluation supports the proposed renovation cost?
• Has the proposal received the required technical and administrative approvals?
• How will treatment quality and capacity be measured after the work?

Publishing these answers would allow residents to understand both the need for renovation and the proposed cost.

How should the project be monitored?

Residents can follow official meeting agendas, tender notices, work orders and subsequent project updates.

The final outcome should be assessed against measurable criteria: plant availability, treatment performance, operating capacity and compliance with relevant standards.

Frequently asked questions

Conclusion

The proposed renovation raises an important question about infrastructure maintenance: how can the city ensure that existing public assets deliver the performance expected of them?

The answer requires transparent technical assessments, clear financial records and measurable results after the work.