To ensure supply of safe and potable water to the public, TWAD Board has established
1. State level water testing Laboratory :(open to Public )
housed at TWAD Board, Head Office, Chepauk, Chennai.
NABL Accredited since 20.10.2016 with the certificate No. T-4207, complying with ISO/IEC 17025:2005 in conducting tests and measurements.
recognized as State Referral Institute (SRI) for Tamilnadu by Government of India since 2009.
govern the activities of 31 District laboratories and 6 Treatment plant laboratories through state fund.
Monitors 51 Sub district level laboratories functioning under NRDWP,GOI since 2009 for water quality monitoring and surveillance.
2. District level water testing Laboratory : ( 31- Open to Public )
Water Testing Laboratories are established in all Districts of Tamilnadu except Chennai.
3. Sub District level water testing Laboratory : ( 51- Not Open to Public )
TWAD Board, Water Quality wing, monitors 51 Sub District level water testing Laboratories, functioning for water Quality Monitoring and Surveillance under National Rural Drinking Water Program since 2009 all over Tamilnadu. .