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Industrial Water Audit & Water Optimisation Services

SARK Engineers & Consultants provides engineering-led water audit services to help industries, utilities, and commercial facilities reduce water consumption, improve recycling, and achieve regulatory compliance. Our water audits are measurement-based and aligned with operational, sustainability, and statutory objectives.

What Is an Industrial Water Audit?

An industrial water audit is a systematic evaluation of water intake, usage, losses, recycling, and discharge across a facility. The objective is to optimise water efficiency, reduce freshwater dependency, and ensure compliance with environmental and groundwater regulations.

Qualified Engineers

Our team comprises experienced Chemical, Mechanical and Environmental Engineers with hands-on exposure to industrial utilities, process systems, and regulatory compliance.
Every audit and consultancy assignment is led by domain experts who understand plant realities, not just theory, ensuring recommendations that are practical, implementable, and regulator-ready.

Experience

  • 200+ Industrial Water & Energy Audits executed

  • Experience across 27+ industrial sectors

  • Pan-India presence with on-site execution capability

  • International consulting assignments across 11 countries

  • Proven expertise in manufacturing, utilities, and infrastructure projects

Results

  • Fastest payback periods achieved within 1–3 months

  • Energy and water savings of up to 45% in select projects

  • Annual cost savings exceeding INR 17 Crores for clients

  • Sustainable improvements backed by engineering validation

1

Water Intake & Source Assessment

  • Assessment of all water sources (freshwater, groundwater, surface water, recycled water)

  • Verification of abstraction quantities against approvals and consents

  • Source-wise metering adequacy and data reliability check

  • Identification of unaccounted or unmonitored water intake

  • Evaluation of seasonal and production-linked intake variations

  • Compliance review with CGWA / local authority conditions

2

Process Water Consumption Analysis

  • Process-wise water consumption mapping

  • Identification of high water-consuming operations

  • Benchmarking against industry norms and best practices

  • Analysis of batch vs continuous process water usage

  • Detection of overuse, wastage, and non-value-added consumption

  • Opportunities for process water optimisation and reuse

3

Water Distribution & Loss Evaluation

  • Internal water distribution network assessment

  • Leak detection in pipelines, valves, and fittings

  • Pressure drop and flow imbalance analysis

  • Storage tanks, overhead tanks, and sump loss assessment

  • Overflow, drain, and bypass loss identification

  • Distribution layout optimisation opportunities

4

Wastewater Generation & Segregation Study

  • Source-wise wastewater generation assessment

  • Segregation adequacy between high and low TDS streams

  • Identification of dilution and cross-contamination issues

  • Assessment of wastewater quantity vs design assumptions

  • Opportunities for source reduction and segregation improvement

  • Alignment with ZLD / reuse strategy requirements

5

Treatment, Recycling & Reuse Effectiveness

  • Performance evaluation of ETP / STP / RO / ZLD systems

  • Assessment of recovery efficiency and reject generation

  • Reuse quality suitability for different applications

  • Treated water storage and handling losses

  • Reliability and operational stability of treatment systems

  • Identification of enhancement opportunities for reuse percentage

6

Water Balance, Compliance & Optimisation Roadmap

  • Preparation of detailed water balance diagram

  • Identification of gaps between intake, use, and discharge

  • Compliance readiness for SPCB, CGWA, and consent conditions

  • Quantification of water saving opportunities

  • CAPEX / OPEX assessment for optimisation measures

  • Phased roadmap for water reduction, reuse, and sustainability

How We Conduct an Industrial Water Audit

Our methodology follows a structured and proven approach:

  • Water Source & Intake Data Review
    Review of freshwater, groundwater, surface water and recycled water sources, including abstraction approvals, flow records and historical consumption trends.

  • On-Site Measurements & Water Flow Mapping
    Physical verification of flow rates, storage volumes and transfer points using calibrated instruments to establish an accurate water flow map.

  • Process Water Use & Loss Analysis
    Assessment of process-wise water consumption, leakages, overflows, excessive use and non-value-added water usage across operations.

  • Wastewater Generation & Treatment Evaluation
    Analysis of wastewater generation, segregation adequacy, treatment system performance and alignment with design and regulatory norms.

  • Recycling, Reuse & ZLD Effectiveness Review
    Evaluation of water recovery efficiency, reuse quality, reject generation and opportunities to improve recycling and reduce freshwater dependency.

  • Water Balance, Savings Potential & Compliance Reporting
    Preparation of a detailed water balance, identification of water saving opportunities, compliance gaps and a phased optimisation roadmap.

Hydroelectric Plant

01.

Measure & Diagnose

On-site measurements and data validation are carried out to assess water intake, process consumption, losses, recycling efficiency, and discharge patterns.
This phase establishes an accurate baseline water balance and identifies inefficiencies across sources, processes, and utilities.

02.

Optimize

Audit findings are translated into practical water optimisation measures including reduction at source, reuse and recycling enhancement, segregation improvement, and treatment efficiency upgrades to minimise freshwater dependency.

03.

Assure Sustainable Savings

We deliver implementation-ready recommendations with quantified water savings, regulatory alignment, and phased execution planning to ensure long-term, sustainable reduction in water consumption.

Deliverables You Receive

May Vary

  • Detailed water balance diagram (intake, use, recycling, discharge)

  • Source-wise and process-wise water consumption analysis

  • Identified water loss and wastage points

  • Water reuse and recycling optimization opportunities

  • Compliance readiness inputs for CGWA / SPCB / ZLD

  • Quantified water saving potential with implementation roadmap

  • CAPEX–OPEX estimates and prioritized action plan

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Frequently Asked Questions – Industrial Water Audit

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1. What is an industrial water audit?

An industrial water audit is a systematic evaluation of water intake, usage, losses, treatment, recycling, and discharge within a facility. The objective is to reduce freshwater consumption, improve reuse, lower operating costs, and ensure compliance with regulatory requirements.

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2. Is a water audit mandatory for industries in India?

While a standalone water audit is not always mandatory, it is often required or strongly recommended under CGWA conditions, SPCB consents, ZLD compliance, environmental statements, and sustainability initiatives. Many regulators ask for water balance and optimization studies as part of compliance.

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3. Who can conduct an industrial water audit?

Industrial water audits should be conducted by qualified environmental, chemical, or process engineers with experience in industrial utilities, water balance preparation, and regulatory compliance. There is no single statutory “water auditor license,” but technical competence and methodology are critical.

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4. What are the key outcomes of an industrial water audit?

Typical outcomes include:

  • A detailed water balance

  • Identification of water losses and wastage

  • Opportunities for water reuse and recycling

  • Reduction in freshwater intake

  • Compliance readiness for CGWA and SPCB

  • A clear, phased water optimization roadmap

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5. How long does an industrial water audit take?

The duration depends on plant size, complexity, and scope.

  • Small to mid-sized facilities: 3–7 days

  • Large or ZLD plants: 1–3 weeks, including data analysis and reporting

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6. Does a water audit include wastewater and treatment systems?

Yes. A comprehensive industrial water audit includes wastewater generation analysis, segregation review, treatment plant performance evaluation, and reuse effectiveness, especially for industries operating ETP, STP, RO, or ZLD systems.

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7. Can a water audit help reduce operating costs?

Absolutely. Water audits often identify low-cost and no-cost measures that reduce freshwater intake, pumping, treatment energy, and chemical consumption, resulting in direct operational cost savings.

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8. Is a water audit useful for ZLD plants?

Yes. For ZLD facilities, water audits are critical to:

  • Improve recovery efficiency

  • Reduce reject generation

  • Optimise treatment and reuse streams

  • Lower energy and chemical consumption

  • Improve system reliability and compliance

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