E. coli Found in 67% of Water Samples in Flood-Hit Pala Region
A water quality study in flood-affected areas around Pala detected E. coli in 67% of samples, prompting calls for scientific chlorination and mandatory post-flood testing.
A water quality assessment of flood-affected areas along the Meenachil river has found E. coli bacteria in 67% of the samples tested, raising concerns about the safety of drinking water sources in and around Pala.
The study was carried out by the PG and Research Department of Zoology at Alphonsa College, Pala, along with local administrations. Samples were drawn from water bodies in Pala Municipality, Karoor, Bharananganam, Erattupetta, Poonjar, Mutholy and Kidangoor. The exercise formed part of efforts to reduce the risk of waterborne diseases in areas hit by flooding.
Nine physicochemical and microbiological parameters were examined, including pH, electrical conductivity, total dissolved solids (TDS), alkalinity, chlorinity, total hardness, sulphate, faecal coliform and E. coli. The findings showed that TDS and pH levels exceeded the normal permissible range in the samples tested.
Researchers linked the rise in bacterial contamination to the recent floods, which may have allowed contaminated surface water to enter drinking water sources.
The assessment recommended scientific chlorination of water sources and mandatory water quality testing after every flood as key remedial measures. These suggestions have been shared with local stakeholders for follow-up action.
The report and its recommendations were handed over to the Pala municipality at a function attended by Water Resources Minister Mons Joseph.
Separately, the college has begun a one-year pilot study to track seasonal variations in water quality during the pre-monsoon, monsoon and post-monsoon periods. The study is expected to offer a broader picture of how water quality changes across the region.
The college has also started work to upgrade its research laboratory into a certified facility, with efforts under way to obtain recognition from the Kerala State Pollution Control Board.