ROUTINE COLIFORM TAKEN ON 12/17/2019 TC+/EC-. NO REPEATS WERE TAKEN GWS WAS TAKEN ON 1/1/2020 TC-. NOV 2018 system personnel were provided instructions for manual chlorination. Routine manual chlorination was instituted and 12/2019 sample for MRDL was 0.2. ZS3 4/14/2022