Why didnt the City abandon Well No. 7 in 2002 after the first test exceeded the MCL?
MDH tests water from municipal wells. Under the MDH protocols, wells are tested periodically in order to develop an average of potential contaminant levels. The MCL for vinyl chloride has been established as the average of four consecutive quarterly samples. If the MCL is exceeded for four consecutive sampling events, the City will be issued a compliance violation by MDH, at which point it will have to follow a public notification process.
