DWAS · Defensible Water Accounting System
A water account is only as defensible as the instrument that measured it, the ledger that recorded it, and the intelligence that watches it. DWAS is built as three engineered layers — measurement, reconciliation, intelligence.
Trusted in the field
Deployed across manufacturing, FMCG, pharmaceuticals, infrastructure and critical operations.
A selection from 2,000+ active facilities — manufacturing, FMCG, pharma, infrastructure and commercial real estate across India.
What DWAS commits to, in writing
Measurable results
A specialty chemicals plant had no meter at a cooling-circuit junction. DWAS reconciliation identified the gap in the first monthly close. Recovered within 90 days.
Manufacturing · GujaratA CGWA inspection with 48 hours' notice. The Water Accountant produced extraction history, calibration certificates, signed statements and a gap analysis in under four hours.
Process industry · MaharashtraSigned monthly Water Statements gave the sustainability team the verifiable third-party data CDP requires. Score improved by a full disclosure band the following cycle.
FMCG · South IndiaThe architecture
Legal-metrology-grade ultrasonic metering at every monitoring point, calibrated to a NABL lab.
OIML R49 · ISO 4064 · Class 2 · NABL 17025Readings reconciled into signed Water Statements and a continuous Ledger, closed by the 7th.
Receipts · Statements · LedgerDaily UFW budgets, zone-level consumption, cost tracking and threshold alerts.
Dhaara Budget · IntelligenceWhy DWAS exists
Traditional monitoring asks: How much water flowed?
DWAS asks: Can this number be traced, reconciled, signed, and defended at audit?
That difference — between visibility and accountability — is why DWAS exists.
Most systems help you see water. DWAS helps you account for it.
Layer 01 · Trusted Measurement
The instrument every defensible number starts from: a patented ultrasonic meter, type-approved under legal metrology and OIML R49, calibrated to a NABL-accredited ISO 17025 lab — sealed against tampering, weatherproofed to IP68, and re-verified in the field every year.
ISO 4064 · Class 2 accuracy4G dual-SIM telemetry5–8 year battery lifeApproved to the international standard for water meters used in legal and regulatory measurement — not a generic industrial sensor.
Every meter is calibrated against reference standards with a documented, unbroken chain of custody — then re-verified annually in the field.
Class-2 accuracy referenced by CGWA, PCBs and ESG frameworks, on patented ultrasonic flow measurement built for water accounting.
Dhaara Smart Pro · DN25 – DN300
| Product | DN25 | DN40 | DN50 | DN65 | DN80 | DN100 | DN150 | DN200 | DN250 | DN300 |
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe size mm | 25 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 |
| Min flow Q1 m³/hr | 0.15 | 0.4 | 0.62 | 1 | 1.57 | 2.50 | 6.25 | 10 | 10 | 15.75 |
| Max flow Q3 m³/hr | 6.3 | 16 | 25 | 40 | 63 | 100 | 250 | 400 | 400 | 630 |
In-house manufacturing
Dhaara Smart Pro is designed, calibrated and manufactured in-house at our dedicated facility in Hyderabad, Telangana.
One of the few manufacturers in India to hold a Legal Metrology water meter manufacturing licence and NABL ISO 17025 accreditation for producing ultrasonic smart water meters — covering the full range from DN25 to DN300.
Funded & supported by the Technology Development Board, Department of Science & Technology, Government of India.
Monitoring points engineered and installed per ISO 4064-5 drawings — straight-run, orientation and siting that make the reading trustworthy.
ISO 4064-5 · WISE surveyEvery reading becomes an audit-grade receipt carrying source, destination, timestamp, meter identity, calibration status and traceability.
Daily · the atomic entryReceipts reconcile into monthly Water Statements and a continuous Water Ledger — every source against every use.
Reconciled · continuousUFW frozen, statement signed and closed before the 7th — a separate, disciplined close, exactly like financial books.
Closed by the 7th · signedLayer 02 · Every Reading Becomes Accountable
Measurement alone is data. This layer turns it into a defensible record — installed to ISO 4064-5, captured as audit-grade receipts, reconciled into statements and a ledger, and closed like a set of books.
Why this layer matters
This is the layer that turns metering into accounting — the difference between data and evidence.
The atomic unit
Every Water Receipt carries source, destination, timestamp, meter identity, calibration status and traceability — then rolls, unbroken, into the record you can defend.
Audit-grade Water Receipt™
Provenance carried on every receipt
The Water Ledger — every receipt, continuously reconciled
Every Water Receipt rolls into the ledger; every month closes into a signed statement. Continuous, reconciled, defensible.
Layer 03 · The Account Never Sleeps
A signed monthly statement is the record. Dhaara Budget turns it into live operational intelligence — so a gap is caught the day it opens, not when the auditor arrives.
Unaccounted-for water tracked against a daily budget — not discovered at month-end.
Consumption broken down by source, treatment zone and discharge — not one aggregate number.
Cost per kL by source — groundwater, tanker, municipal — surfaced automatically, every day.
Configurable limits on UFW, flow variance and efficiency ratios. Alerts before SLAs are missed.
Inlet 75.6 · Outlet 64.0 · Reject 11.6 kL
One account, every obligation
DWAS produces a single audit-grade water account that satisfies every framework simultaneously — BRSR, CDP, CGWA, PCB, supply chain and board — without separate data collection for each.
One defensible water account
Ready to start?
Measurement, reconciliation and intelligence — delivered as a managed service, with a dedicated Water Accountant who signs your numbers.