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Protecting Your Ground Water Supply

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Protecting Your Ground Water Supply

When Building, Modifying Or Closing A Well
• Hire a certified well driller for any new well construction or modification
• Slope well area so surface runoff drains away
• When closing a well:
– Do not cut off the well casing below the land surface
– Hire a certified well contractor to fill or seal the well

Preventing Problems
• Install a locking well cap or sanitary seal to prevent unauthorized use of,
or entry into, the well
• Do not mix or use pesticides, fertilizers, herbicides, degreasers, fuels, and
other pollutants near the well
• Never dispose of wastes in dry wells or in abandoned wells
• Pump and inspect septic systems as often as recommended by your local
health department
• Never dispose of hazardous materials in a septic system
• Take care in working or mowing around your well

Maintaining Your Well
• Each month check visible parts of your system for problems such as:
– Cracking or corrosion,
– Broken or missing well cap,
– Settling and cracking of surface seals
• Have the well tested once a year for coliform bacteria, nitrates, and other
• Keep accurate records in a safe place, including:
– Construction contract or report
– Maintenance records, such as disinfection or sediment removal
– Any use of chemicals in the well
– Water testing results

After A Flood — Concerns And Advisories
• Stay away from the well pump while flooded to avoid electric shock
• Do not drink or wash from the flooded well to avoid becoming sick
• Get assistance from a well or pump contractor to clean and turn on the
• After the pump is turned back on, pump the well until the water runs clear
to rid the well of flood water
• If the water does not run clear, get advice from the county or state health
department or extension service
• For additional information go to http://www.epa.gov/safewater/consumer/

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