Private well after flooding: what to do before drinking the water

Pause normal use and assess safely

Floodwater can carry contamination into a well or damage electrical and mechanical equipment. Do not assume a filter or a clear glass makes the water safe. Use bottled or another known-safe source while the situation is assessed.

Keep away from damaged electrical equipment. A qualified professional should inspect the pump and related components when flooding or damage is suspected.

Reference: EPA: what to do with a private well after a flood

Follow local instructions for disinfection and sampling

Contact the local health department about which tests are needed and when to collect samples. A disinfection step is not the final proof: the water needs appropriate testing after treatment.

Do not copy a neighbor's bleach quantity or a generic online schedule. Well construction, storage, and connected treatment equipment affect the correct procedure.

Reference: CDC well-water treatment guidance

Consider the equipment downstream

Make an inventory of softeners, carbon units, RO tanks, refrigerator lines, ice makers and stored water. Ask each equipment manufacturer or service provider what cleaning or replacement is required after possible contamination.

A normal annual cartridge change is not automatically enough after a flood. The correct response depends on the water event and equipment design.

Keep a restart record

Save inspection notes, disinfection steps, lab results and the date normal use resumed. If a later taste or odor change appears, that record will help the next investigation.

Readers in North Port, Port Charlotte, Englewood, Venice and Arcadia should follow the authority responsible for their particular well and property; this guide does not claim an area-wide event.