BRSR FY26 Preparation is Underway. Are Your Water Metrics Ready?
Industry leaders like Piramal and Polycab are already aligning their data systems. While the BRSR FY26 filing window won’t officially open until after March 31, 2026, if you’re an ESG Director at a listed Indian company, the clock for data collection is already ticking.
While most of your peers are scrambling to calculate Scope 1 emissions or map their supply chain, they are making a critical mistake: treating water as a secondary data point.
Under SEBI’s BRSR Core framework, water isn’t a footnote. It is a standalone, quantitatively dense section. If your manufacturing plant draws 100,000 kiloliters (kL) of groundwater but your ESG report says “water used: 100,000 kL,” you will fail the BRSR Core assurance test. Assurance requires source-level granular data, not aggregated totals.
At EcoLive, we engineer water systems—rainwater harvesting, groundwater recharge, and water audits—specifically for BRSR compliance. Here is the exact breakdown of the FY26 water metrics you need to file, how to calculate them, and the pitfalls that trigger auditor red flags.
The 3 Core Water Indicators You Cannot Get Wrong
BRSR demands precise segregation. You must report on three distinct fronts: Withdrawal, Consumption, and Discharge. Conflating these is the fastest way to get a qualified audit report.
1. Water Withdrawal (By Source)
You cannot simply state total withdrawal. BRSR Core requires a strict bifurcation:
- Surface Water: Rivers, lakes, municipal corporation supply (calculated via flow meters at intake points).
- Groundwater: Borewells and open wells (requires flow meters and, increasingly, CGWA compliance documents).
- Third-Party Water: Tanker water (must be backed by vendor invoices and estimated source mapping).
- Desalinated/Seawater: If applicable to coastal facilities.
The Engineer’s Warning: If your groundwater withdrawal exceeds your CGWA NOC limit, reporting it accurately in BRSR exposes a regulatory risk. Ignoring it violates assurance standards. You need a water audit to reconcile your actual extraction against your legal entitlement.
2. Water Consumption vs. Discharge
This is where most sustainability teams stumble.
- Water Consumed: Water that is lost to the atmosphere via evaporation or embedded in products (e.g., steam in a boiler, moisture in a textile).
- Water Discharged: Water that leaves your facility via Effluent Treatment Plants (ETP) or Sewage Treatment Plants (STP).
Formula: Total Withdrawal = Total Consumption + Total Discharge
If your math doesn’t add up, the auditor will flag it. For example, if you withdraw 50,000 kL and discharge 45,000 kL, your consumption is 5,000 kL. If you claim consumption is 20,000 kL, your water balance sheet fails.
3. Water Intensity Metrics
Absolute numbers mean little without context. BRSR requires you to normalize water use against your financial output:
- Water Intensity (Withdrawal): Total Water Withdrawn (kL) / Total Revenue (₹ Crore)
- Water Intensity (Consumption): Total Water Consumed (kL) / Total Revenue (₹ Crore)
Year-on-year (YoY) reduction in water intensity is a key performance indicator for ESG rating agencies. If your revenue grew by 15% but water withdrawal grew by 20%, your intensity is worsening—despite any “green” PR campaigns.
The Missing Metric: Water Recycled and Reused
BRSR asks for the total volume of water recycled/reused as a percentage of total withdrawal.
This is where engineering intersects with compliance. If your STP treats 10,000 kL of wastewater daily, but only 6,000 kL is pumped back to cooling towers or gardening (and 4,000 kL is discharged to the municipal drain), your recycling rate is not 100%.
To maximize this metric legitimately:
1. Conduct a flow mapping exercise across your facility.
2. Identify low-grade water demands (gardening, toilet flushing, dust suppression) that can be met by treated STP/ETP water.
3. Install dedicated metering on the recycled water line to provide auditable proof.
BRSR Water Compliance Checklist for ESG Directors
Do not submit your BRSR until you can check every box below:
- [ ] Source Segregation: Is withdrawal clearly split into Surface, Ground, and Third-Party?
- [ ] Mathematical Reconciliation: Does
Withdrawal = Consumption + Dischargehold true for every facility? - [ ] Metering Proof: Are there physical flow meters at all major intake and discharge points? (Spreadsheets based on electricity bills for borewells are frequently questioned by Core assurers).
- [ ] High-Stress Location Mapping: Are facilities located in water-stressed districts (as per WRI Aqueduct or CGWA guidelines) explicitly disclosed?
- [ ] CGWA Alignment: Do groundwater extraction numbers match NOC limits?
- [ ] Recycling Proof: Is recycled water metered separately from fresh water intake?
Stop Treating Water Data Like Carbon Data
Carbon accounting has matured in India; water accounting has not. You cannot estimate water metrics using secondary factors the way you might calculate Scope 2 emissions from utility bills. Water is hyper-local. A facility in water-stressed Tamil Nadu has a drastically different risk profile than one in water-abundant Assam, even if their withdrawal volumes are identical.
BRSR Core assessors are engineers and accountants. They look for a closed-loop water balance diagram. If your current ESG consultant handed you a spreadsheet with generic water numbers, you are at risk of a qualification.
Secure Your Filing with Engineering-Grade Data
At EcoLive, we don’t write sustainability reports. We design the water infrastructure and conduct the audits that generate the data for them.
If your BRSR FY26 water metrics are incomplete, unreconciled, or lack source-level metering, we can help. We provide comprehensive water audits, groundwater recharge feasibility studies, and rainwater harvesting implementations that directly improve your BRSR water scores.
Don’t let weak water data hold back your BRSR Core assurance.
Contact EcoLive for a BRSR Water Audit before the filing deadline.
