Service Models
Water treatment without the capital expenditure. Or the headaches.
The Challenge
Your core business isn't running an ETP. Ours is.
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. NWPL's alternative service models — BOOT, Water-as-a-Service, Tank Exchange, and AMC — transfer the capital, complexity, and compliance risk to us.
Upfront CAPEX for clients on NWPL's BOOT / Water-as-a-Service model
How It Works
Three ways to get compliant water without owning the plant.
NWPL offers three flexible service models — BOOT, Water-as-a-Service, and Tank Exchange — each suited to different capacity requirements, project types, and client risk appetites.
Build-Own-Operate-Transfer
NWPL designs, finances, builds, and operates the plant on your site at zero CAPEX. You pay a fixed monthly service fee (₹/KL treated). After 10–15 years (as agreed), ownership transfers to you. NWPL bears all maintenance, compliance, and operating cost risk throughout the term.
Water-as-a-Service
A pure operational model with no transfer clause. NWPL 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.
Tank Exchange & Rental
For smaller capacities (10–100 KLD) and temporary requirements — construction sites, events, emergency compliance, pilot studies — NWPL provides pre-commissioned, skid-mounted treatment units on a weekly or monthly rental basis. Delivered, installed, and collected by NWPL. No engineering team required from your side.
Technical Specifications
Built for precision.
| Parameter | Value / Range |
|---|---|
| BOOT minimum capacity | 50 KLD |
| BOOT contract term | 10 – 20years |
| WaaS SLA uptime guarantee | ≥ 99% |
| Tank Exchange capacity range | 10 – 100KLD |
| AMC response time | < 24hours (emergency) |
| AMC scope | Preventive + corrective + parts + compliance docs |
| BOOT capex by NWPL | 100% (client pays ₹0) |
| Transfer valuation method | Written-down value at transfer date |
Case Study
Proven in the field.

BOOT ETP — 300 KLD, Pharmaceutical, Ahmedabad
Client avoided ₹3.8 Cr CAPEX on ETP infrastructure. NWPL 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 projectsCompliance Context
NWPL bears the compliance liability. Not you.
Under BOOT and WaaS models, the CPCB/SPCB consent for the treatment plant is applied for and maintained by NWPL. NWPL's name appears as the plant operator on regulatory documentation. This means compliance liability for the treatment system transfers to NWPL — your liability ends at the boundary of the treated water outlet. This is a material risk reduction for your organisation.
NWPL holds CPCB/SPCB operator consent on behalf of client
Liability for treatment non-compliance contractually with NWPL
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?
Calculate your NPV, IRR & payback period
Frequently Asked
Common questions answered.
Related Industries
Designed for your sector.
Request a Technical Audit for Service Models.
Tell us your capacity, inlet profile, and compliance targets. We'll size a system that fits.