40 CFR 141.521 - What updated watershed control requirements must my unfiltered system implement to continue to avoid filtration?
Your system must take any additional steps necessary to minimize the potential for contamination by Cryptosporidium oocysts in the source water. Your system's watershed control program must, for Cryptosporidium:
(a) Identify watershed characteristics and activities which may have an adverse effect on source water quality; and
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.