Cost-Share Practice - N351
Well Decommissioning

Purpose:

Prevents entry of vermin, debris, fertilizer, pesticides or other foreign substances into the well or well bore holes.

Prevents entry of contaminated surface water into the well and the migration of contaminants into the unsaturated (vadose) zone or saturated zone.

Prevents the commingling of chemically or physically different ground waters between separate water bearing zones.

Applicability:

• Applies to any drilled, dug, driven, bored, or otherwise constructed vertical water well determined to have no further beneficial use.
• Does not apply to wells that were used for waste disposal, or if evidence of contamination still exists.  Sampling of the fluids in the well may be required.
• Does not apply to wells that contain contaminant levels that exceed state or federal water quality standards.
• Treatment of contamination source(s) is required before a well is decommissioned.

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Livingston County Soil and Water Conservation District
1100 Morton Parkway, Chillicothe, MO 64601
PHONE: 660-646-5687 *** FAX: 660-646-4894