Citing the water-quality report from January to March, Pollution Control Department chief Wichien Jungrungreung Thursday said the water sources had fecal coliform bacteria concentrations that were greater than 4,000 MPN coliforms/100 millimetres.
They are Sukhothai’s Muang district (17,000-24,000 MPN); Kwan Phayao in Phayao’s Muang district (7,000 MPN); Chao Phraya River in Nakhon Sawan’s Muang district (30,000 MPN); Loei River in Loei’s Muang district (15,000 MPN); Lam Pao River in Kalasin’s Kamalasai (16,000 MPN) and Muang districts (5,400 MPN); and the Siew River in Roi Et’s Kaset Wisai district (24,000 MPN).