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Preventive maintenance program Guide for small public water systems using groundwater July 2017 DOH 331-351 Revised Contents Introduction .. 1 Recommended Preventive maintenance .. 3 Daily .. 4 Weekly .. 6 Monthly .. 7 Quarterly .. 9 Biannually ..10 Annually ..12 As needed ..14 Recommended websites and publications ..16 Troubleshooting Guides ..17 Groundwater sources ..18 Submersible well pump systems ..20 Pressure tanks ..23 Storage facilities ..26 Hypochlorination problems ..28 Distribution systems ..31 Cross connections ..32 Sampling and monitoring ..33 Recommended Operation and maintenance schedules ..34 Groundwater sources ..35 Pumps and pumping facilities ..36 Pressure tanks ..37 Storage facilities ..38 Chlorine disinfection treatment ..40 Distribution systems ..41 Template: Create your own Preventive maintenance program ..42 Office of Drinking Water publications are online at If you need this publication in an alternative format, call 1-800-525-0127 (TDD/TTY call 711).
any potential microbiological or chemical contaminant threats from within 100 feet of the well. For example, damaged electrical conduits can open a pathway for contaminants to enter the well casing. Record well pump run times and pump cycle starts. If …
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