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Technical Assistance

Public Water System Technical Assistance

If you need assistance on a water quality problem or compliance question, there is help available. The Public Water System Inspection Team provides on-site advice and assistance to public water systems regarding operation, maintenance, treatment, quality control, testing waivers and testing requirements.

Drought in Maine

Dry periods are becoming more frequent in Maine, with some parts of the state experiencing unusually dry or drought conditions almost annually. To help Public Water Systems maintain service and quality, the Maine CDC Drinking Water Program (DWP) continues to provide updates and resources on the drought situation.

Hydrogeology and Wells

Hydrogeology is the study of groundwater -- water found below the surface of the earth. Believe it or not, about half of Maine's homeowners are practicing hydrogeologists, because they have, with the help of a well driller, explored for, found, and are actively utilizing groundwater. These homeowners derive their drinking water from private water wells located on their property. All of these wells, regardless of the type or depth, get their water from groundwater.

Treatment & Treatment Modifications

Treatment systems are mechanical and/or chemical processes that remove contaminants from water, ensuring it is safe for consumption. Treatment systems are an important part of delivering safe drinking water for many public water systems throughout the state. However, treatment only works when the proper chemicals are used in the right amounts, and treatment is maintained and monitored. Failure to regularly and effectively maintain and monitor your treatment system puts the health of your customers at risk.

New Well and New Source Approval

Before construction of a new public water source is initiated, proposed plans must be submitted to the DWP for approval. (22 M.R.S. §2612)

Step 1: Preliminary Approval

Before a new well is drilled, the selected site must be approved by the Drinking Water Program. The State of Maine Rules Relating to Drinking Water establishes a set-back for all wells of at least 300 feet from any potential sources of contamination (such as fuel tanks and leach fields). If site conditions so require, a waiver of this setback requirement may be requested.

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