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Service Models

BOOT & Water-as-a-Service for Water Treatment Plants

Water treatment without the capital expenditure. Or the headaches.

Technically reviewed by Prashant Dwivedi, Co-Founder & Director ·

Service Models
Service Models · Live Process

The Challenge

Why choose BOOT or Water-as-a-Service over owning your water treatment plant?

Capital expenditure on water treatment infrastructure competes with your core business investment. Operations and maintenance demand specialised skills most companies cannot retain. Compliance liability falls on your EHS team rather than a specialist. Navbharat Water's BOOT, Water-as-a-Service, and AMC models transfer the capital, complexity, and compliance risk to us.

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Upfront CAPEX for clients on Navbharat Water's BOOT / Water-as-a-Service model

Key Questions

What is a BOOT model in water treatment?

Under BOOT (Build-Own-Operate-Transfer), Navbharat Water designs, finances, builds and operates the treatment plant on your site at zero upfront CAPEX. You pay a per-kilolitre service fee, and at the end of an agreed term of 10–20 years, ownership transfers to you at written-down value.

BOOT is viable from 50 KLD upwards. Navbharat Water funds 100% of the capital cost, and clients pay a service fee that is typically ₹15–25 per kilolitre depending on technology and capacity. Throughout the term, Navbharat Water owns the equipment and bears the maintenance, compliance and operating cost risk, including capital replacements such as membranes, pumps and instruments at no extra cost. Every contract includes early termination provisions, usually a buy-out of the remaining invested capital at a pre-agreed formula. The model is proven on live plants. On a 300 KLD pharmaceutical ETP in Ahmedabad, the client avoided ₹3.8 Cr of CAPEX; Navbharat Water built, commissioned and has operated the plant for four years at 99.3% uptime and a monthly fee of ₹18 per kilolitre, with GPCB compliance maintained and zero show-cause notices. Below 50 KLD, a conventional CAPEX installation with an AMC is recommended instead.

What is Water-as-a-Service and how is it different from BOOT?

Water-as-a-Service (WaaS) is a pure operating model with no transfer clause: Navbharat Water owns and runs the plant indefinitely and sells you treated water at an agreed quality and price per kilolitre, backed by an SLA guaranteeing uptime of 99% or more.

BOOT ends with you owning the plant; WaaS never does, which suits clients who never want the operational burden. The WaaS contract includes a performance guarantee. If outlet quality falls below the agreed specification, Navbharat Water supplies treated water by tanker at its own cost until the plant is repaired, and for CPCB non-compliance incidents attributable to its operations, Navbharat Water indemnifies the client for resulting fines and legal costs. Under both BOOT and WaaS, the CPCB or SPCB consent for the treatment plant is applied for and maintained by Navbharat Water, which appears as plant operator on regulatory documentation. Your liability ends at the boundary of the treated water outlet. Contracts also include force majeure provisions for regulatory changes and an annual third-party compliance audit, and Navbharat Water guarantees compliance with current norms and adaptation to future standards.

What does an Annual Maintenance Contract (AMC) cover?

An AMC is for clients who own their plant but want guaranteed uptime and compliance. Navbharat Water AMCs cover scheduled preventive maintenance, corrective repairs, spare parts and annual SPCB compliance documentation for a fixed yearly cost, with emergency response within 24 hours.

The AMC replaces unpredictable repair bills with a single fixed annual cost and puts specialist operators behind plants that most companies cannot staff internally. Scope depends on the technology. For an ETP it typically means daily checks of dissolved oxygen, sludge levels and chemical doses, weekly instrument calibration, monthly diffuser cleaning and quarterly overhauls. For an MBR STP it adds monthly membrane backwash and integrity testing and quarterly chemical cleaning. For membrane plants, a membrane replacement programme can be included. An AMC is also a fast route out of a compliance emergency. For clients facing an NGT or SPCB notice with a 30–60 day deadline, Navbharat Water can fast-track a BOOT or AMC arrangement, mobilise for site assessment within 48 hours and provide a compliant interim solution while permanent infrastructure is engineered and commissioned.

How It Works

How do BOOT, Water-as-a-Service and AMC contracts work?

Navbharat Water offers two flexible service models — BOOT and Water-as-a-Service — suited to different capacity requirements, project types, and client risk appetites.

BOOT/

Build-Own-Operate-Transfer

Navbharat Water designs, finances, builds, and operates the plant on your site at zero CAPEX. You pay a fixed monthly service fee (₹/KL treated). After the agreed term (typically 12–15 years, within a 10–20 year range), ownership transfers to you. Navbharat Water bears all maintenance, compliance, and operating cost risk throughout the term.

WaaS/

Water-as-a-Service

A pure operational model with no transfer clause. Navbharat Water owns and operates the plant indefinitely. You receive treated water at an agreed quality and price per kilolitre. SLA guarantees uptime ≥99% and outlet quality at all times. Ideal for clients who never want the operational burden.

AMC/

Annual Maintenance Contract

For clients who own their plant but want guaranteed uptime and compliance. Navbharat Water's AMC covers scheduled preventive maintenance, emergency corrective response within 24 hours, spare parts, and annual SPCB compliance documentation. Fixed annual cost, no surprise repair bills.

Treatment Chain

How a BOOT contract works

The lifecycle of a BOOT contract; under Water-as-a-Service the plant simply stays with Navbharat Water.

  1. Step 01

    Site assessment

    Flow, inlet quality and consent position are assessed, fast-tracked for compliance notices.

    48 h mobilisation

  2. Step 02

    Design & finance

    Navbharat Water designs the plant and funds the full capital cost.

    ₹0 client CAPEX

  3. Step 03

    Build & commission

    The plant is built on your site; Navbharat Water holds the CPCB/SPCB operator consent.

  4. Step 04

    Operate

    Navbharat Water runs, maintains and monitors the plant for a per-kilolitre fee.

    ₹15–25/KL typical

  5. Step 05

    Transfer

    At the end of the term, ownership transfers to you at written-down value.

    10–20 year term

Technical Specifications

What are the technical specifications for Service Models?

ParameterValue / Range
BOOT minimum capacity50 KLD
BOOT contract term10 – 20years
WaaS SLA uptime guarantee≥ 99%
AMC response time< 24hours (emergency)
AMC scopePreventive + corrective + parts + compliance docs
BOOT capex by Navbharat Water100% (client pays ₹0)
Transfer valuation methodWritten-down value at transfer date

BOOT contracts start at 50 KLD and run for 10–20 years. Navbharat Water finances 100% of capital cost; clients pay a per-kilolitre service fee (typically ₹15–25/KL depending on technology and capacity). The WaaS model offers ≥99% uptime SLA with outlet quality guarantees — if quality falls below spec, Navbharat Water supplies water by tanker at no charge until the plant is restored. AMC contracts cover all preventive and corrective maintenance with a 24-hour emergency response commitment.

Case Study

What results has Service Models delivered on a live site?

BOOT ETP — 300 KLD, Pharmaceutical, Ahmedabad
Healthcare & Pharma300 KLD

BOOT ETP — 300 KLD, Pharmaceutical, Ahmedabad

Client avoided ₹3.8 Cr CAPEX on ETP infrastructure. Navbharat Water built, commissioned, and has operated the plant for 4 years with 99.3% uptime. Client's EHS team has zero operational load. GPCB compliance maintained with zero show-cause notices. Monthly service fee: ₹18/KL treated.

View all projects

Compliance Context

How does a BOOT contract transfer CPCB compliance liability from your company to Navbharat Water?

Under BOOT and WaaS models, the CPCB/SPCB consent for the treatment plant is applied for and maintained by Navbharat Water. Navbharat Water's name appears as the plant operator on regulatory documentation. This means compliance liability for the treatment system transfers to Navbharat Water — your liability ends at the boundary of the treated water outlet. This is a material risk reduction for your organisation.

Navbharat Water holds CPCB/SPCB operator consent on behalf of client

Liability for treatment non-compliance contractually with Navbharat Water

Force majeure and Act of God provisions for regulatory changes

Guaranteed compliance with current norms + adaption to future standards

Annual third-party compliance audit included in BOOT/WaaS contracts

What could you save?

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Frequently Asked

Frequently asked questions about Service Models

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