N.H. Code Admin. R. We 702.02
A well shall be chlorinated to a minimum concentration of 50 parts per million for a minimum of 4 hours when a pump is installed or reinstalled.
Source. #4198, eff 1-5-87; ss by #4730, eff 1-15-90; ss by #4898, eff 8-13-90; EXPIRED: 8-13-96 New. #6327, INTERIM, eff 8-24-96, EXPIRED: 12-22-96 New. #6449, eff 1-29-97; ss by #7307, eff 6-13-00; ss by #9179, eff 6-13-08; ss by #12083, eff 3-1-17 (See Revision Notes at Chapter headings for We 300 and We 600)