If your facility draws groundwater in India, the rules changed in a way that matters: extraction is no longer something you report after the fact. Under CGWA's revised framework, it has to be metered, logged, and — above a defined threshold — transmitted to the regulator automatically.
The two thresholds that actually matter
The obligation scales with how much groundwater a facility draws, and there are two separate trigger points to know.
Any proponent drawing 10 m³/day or more must construct a purpose-built observation well — a piezometer — for monthly water-level monitoring. That's a low bar. A mid-sized processing unit, a large commercial building, or a modest industrial estate could clear it without much difficulty.
Cross the second threshold and the requirement escalates from "install a monitoring well" to "wire it up." At least one piezometer on site needs an automated telemetry system, and the facility has to hand over its portal login — user ID and password — so CGWA can pull the data directly rather than relying on self-reported figures.
What the piezometer itself has to look like
This isn't a paperwork-only requirement. CGWA's guidelines specify the physical installation:
- Positioned at least 50 metres from the well actually being pumped
- 4 to 8 inches in diameter
- Drilled to match the depth of the main pumping well, so readings reflect real drawdown
- Installed within 30 days of the NOC being granted, with confirmation filed back through the CGWA portal
Once commissioned, the obligation is ongoing — water-level data has to keep flowing to the CGWA portal every month, indefinitely. This is a standing operational requirement, not a one-time compliance box to tick.
How this connects to your water audit
Telemetry doesn't exist in isolation. Industries already extracting above 100 m³/day are required to conduct annual water audits, with a three-year target to cut groundwater use by at least 20%. Real-time telemetry gives CGWA a live, continuous cross-check against those audit figures — meaning any gap between what's reported and what's actually being withdrawn is far more likely to surface, and far sooner.
Need help with a CGWA NOC, water audit, or telemetry installation?
Rispri Labs and Ram Chemical Enterprises handle CGWA registration support, authority-accepted water audit reports, and the full compliance paperwork — so you're not piecing this together from press releases and PDFs.
Talk to Our Compliance TeamFrequently asked questions
Does the telemetry requirement apply to existing NOCs, or only new ones?
The threshold is based on withdrawal volume, not NOC age — any facility drawing 500 m³/day or more falls under the requirement regardless of when the original NOC was granted. If you're unsure where your facility stands, that's worth confirming directly with CGWA or a consultant rather than assuming.
What happens if the piezometer isn't installed within 30 days?
CGWA's enforcement approach has generally tightened rather than loosened in recent years — missed installation windows are a compliance gap that shows up the moment the regulator checks portal activity, since the confirmation filing itself is part of the requirement.
Is a water audit the same thing as the telemetry requirement?
No — they're related but distinct. The water audit (mandatory above 100 m³/day) is a periodic assessment of usage and reduction targets. Telemetry (mandatory above 500 m³/day) is continuous, automated data transmission. A facility above 500 m³/day needs both.
Sources: India Water Review, CGWA official telemetry specification. This article is for general guidance and isn't a substitute for confirming your specific facility's requirements with CGWA or a licensed compliance consultant.