Request a Performance Audit

STP & WTP Performance Audits – Engineering-Driven Efficiency, Compliance & Optimization

Every Sewage Treatment Plant (STP) and Water Treatment Plant (WTP) is designed on paper to achieve a certain capacity, treatment efficiency and discharge quality. In reality, very few plants continue to operate at that level after a few years. Operational shortcuts, ageing equipment, sludge mismanagement, changing loads, and lack of data gradually erode performance.

A Performance Audit by Greentivity Enviro Solutions helps you understand how well your plant is actually performing – technically, financially and environmentally. We analyze not just whether your plant runs, but whether it runs efficiently, compliantly and sustainably.

We work with residential communities, commercial buildings, IT parks, townships, institutions and industries to evaluate and optimize their STP and WTP assets.

What Is a Performance Audit for STPs & WTPs?

A performance audit is a structured, end-to-end evaluation of your treatment plant that covers:

• Hydraulic & process performance – Is the actual treatment train delivering the intended quality?
• Mechanical & electrical efficiency – Are blowers, pumps and motors operating optimally?
• Energy and chemical consumption – Are you over-spending due to hidden inefficiencies?
• Sludge management – Is sludge age, MLSS and dewatering optimized?
• Compliance & reporting – Does treated water consistently meet CPCB / State PCB norms?
• Reuse and sustainability potential – Can more treated water be reused on site?

The outcome is an actionable roadmap that tells you what to fix, what to upgrade and where you can save money.

Why You Need a Performance Audit (Beyond Routine O&M)

Routine O&M keeps the plant running. A performance audit asks: "Is it running in the best possible way?"

Key reasons to conduct an audit:

• Rising power or chemical bills without obvious changes in load
• Frequent complaints about odour, foam or poor treated water
• Preparing for Pollution Control Board inspections
• Considering refurbishment, capacity upgrade or technology change
• New facility manager or RWA wanting a clear baseline assessment
• Ensuring that outsourced O&M vendors are actually delivering results

Important: Without an independent audit, many plants continue to operate sub-optimally for years, silently draining budgets and creating compliance risk.

Key Components of Greentivity's Performance Audits

1. Process & Treatment Efficiency Evaluation

We examine every stage of your plant – equalization, aeration, clarification, filtration, disinfection – and compare observed performance to the design intent.

Typical checks include:

• Flow and loading patterns
• DO levels and aeration effectiveness
• MLSS and sludge age
• F/M ratio and process stability
• Clarifier performance and solids carryover

2. Energy & Cost Optimization Study

Energy is one of the largest operating costs in STPs and WTPs.

We analyze:

• Blower and pump run-hours
• Specific energy consumption per m³ treated
• Opportunities to reduce operating hours or upgrade to efficient equipment
• Chemical dosing practices and overuse

The audit identifies where and how you can reduce OPEX without compromising quality.

3. Equipment Health & Reliability Check

We review the condition and loading patterns of critical equipment:

• Blowers, pumps, agitators, mixers
• MCC panels, starters, drives
• Diffusers, media, strainers, valves, pipelines

This allows you to plan predictive replacements instead of reactive breakdowns.

4. Sludge Management & Waste Reduction

Poor sludge management leads to odour, poor settling, increased tanker costs and non-compliance.

We evaluate:

• Sludge age and MLSS profile
• Dewatering efficiency
• Sludge handling logistics
• Options to reduce sludge generation and disposal cost

5. Compliance & Risk Assessment

We compare treated water quality against:

• CPCB discharge norms
• Relevant State Pollution Control Board conditions
• Local reuse or discharge requirements

You receive a clear picture of current risk levels and steps to eliminate compliance gaps.

The AquaSTP Advantage – Turning Static Audits into Continuous Optimization

Traditionally, performance audits result in a one-time report that often gets partially implemented and then forgotten.

At Greentivity, we integrate our audits with AquaSTP, a cloud-based STP performance and operations platform available at aquastp.ziaconline.com.

With AquaSTP, you can:

• Log and visualize daily plant parameters (flow, pH, DO, MLSS, energy, chemical use)
• Monitor operator attendance and activities
• Track equipment run hours and maintenance history
• Receive alerts and notifications when critical values go out of range
• Generate monthly performance & compliance dashboards for RWAs, facility managers and management

This converts your performance audit into a living system where key KPIs are monitored continuously, not once a year.

Our Performance Audit Methodology

1. Pre-Audit Consultation – Understand plant configuration, issues, history and goals.
2. Data Collection & Site Study – On-site inspection, interaction with operators, review of existing logs and drawings.
3. Sampling & Testing – Collection and analysis of influent, intermediate and effluent samples as needed.
4. Performance Benchmarking – Comparison against design documents, standards and industry benchmarks.
5. Audit Report & Recommendations – A structured report with findings, prioritized actions, CAPEX/OPEX implications and suggested timelines.
6. Implementation Support & AquaSTP Onboarding (Optional) – Assistance in executing recommended changes and setting up AquaSTP for ongoing monitoring.

Who We Work With

• Residential apartments and gated communities
• Integrated townships and smart cities
• IT parks, SEZs and commercial campuses
• Hospitals, hotels and educational institutions
• Industrial facilities with captive STPs/WTPs

Whether you manage a 50 KLD plant or a multi-MLD facility, a performance audit can unlock hidden savings and risk reductions.

Benefits You Can Expect

• Lower energy and chemical costs
• Fewer breakdowns and emergency callouts
• Better treated water quality and reuse potential
• Stronger compliance position during inspections
• Clear visibility for management and residents
• Better negotiation position with O&M vendors

Get a Professional Performance Audit for Your STP / WTP

If you suspect your plant is not working as efficiently as it should – or if you simply want an expert, independent view of its health – a Greentivity Performance Audit is the best place to start.

Use the insights to plan refurbishments, renegotiate AMC contracts, or implement digital monitoring with AquaSTP.