«Comprehensive federal statutory schemes, such as the SDWA, preclude rights of action under Section 1983 for alleged deprivations of constitutional rights in the field occupied by the federal statutory scheme,» the appeals court wrote in Mattoon, which stemmed
from a lawsuit on behalf of 68 Berkshire County, Massachusetts, residents who alleged they came down with
giardiasis, commonly known as «beaver fever,» after drinking contaminated water.