CGWA Guidelines for Flow Meter and Telemetry System
The increasingly stressed global water resources have made it necessary to manage groundwater effectively. As a result, various countries have come up with comprehensive frameworks to govern and control exploitation and utilization of groundwater. Because the Central Ground Water Authority (CGWA) has been actively involved in such endeavors in India. So, This blog explores the guidelines formed by CGWA based flow meter and telemetry for Ground Water Monitoring.
Know Your Central Ground Water Authority (CGWA)
Constitution of the CGWA: It was created in 1976 by amending the Environment (Protection) Act and is a statutory body under Ministry of Water Resources, River Development & Ganga Rejuvenation constituted for the purpose of regulation and control of ground water development and management in India. One of its primary responsibilities is to promote sustainable development and management of groundwater resources, preventing their over-exploitation as well as contamination.
Flow Meter Specification :
| Technology | Electromagnetic or Ultrasonic |
| Standards to Follow | ISO 4064: 2014 |
| Meter Accuracy | ± 2 % for operating flow range (Min and Max Flow) |
| Power Source | The meter shall be UPS Powered or Battery Operated |
| Test Certification | NABL |
| Meter Body | Brass/Bronze/MS/CI/SS/Engineering Plastic and compact enough to avoid tampering of meter. |
| Communication Mode | RS485 / 4-20 mAmp |
Telemetry Specification :
| Connectivity | LAN/Cellular(GPRS/3G/4G)/LoRa WAN |
| Parameter to Monitor | Borewell Id, Device Last Calibration date, Cumulative forward/reverse/ net volume. Cumulative Pump Working hours, Meter Serial Number, |
| Cloud | Data should be send to Secure Cloud. |
| Transmission Frequency | Minimum 2 Times per day. |
Software Specification
| Software OS | Software must be capable to run on Windows XP Professional, Windows Vista. Windows 7 and / or latest version of Windows Operating System and HP Unix, Linux, Solaris, etc |
| Hosting | Cloud Based and can be accessed on Browser |
| Capability | To add additional data to the server. |
- According to the diagram , install the meter at the Borewell discharge point of Borewell.
- Remember not to discharge anything before the pipe.
- Ensure full up stream and downstream straight length shall be provided for the meter
Conclusion :
The CGWA Guidelines for Flow Meter and Telemetry System provide a well-structured framework for regulating groundwater resources in India sustainably. The CGWA tasks with regulating and controlling groundwater extraction across India, promoting conservation of water resources to prevent exploitation. It is essential for all interest groups — from the industry users to farmers and urban planners, — to comply with these norms in order continue using this life-saving resource sustainably over long periods of time.
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