Part II. Monitoring Well Construction
Section 8. Well Location With Respect to Pollutants and Contaminants, and
Monitoring wells are usually constructed to observe conditions at defined or
required locations. Monitoring well locations are usually selected on the
basis of known or expected hydrologic, geologic, and water quality conditions
and the location of pollutant or contaminant sources. Monitoring wells
frequently need to be located close to or within areas of pollution or
- Separation. Monitoring wells shall be located an adequate distance from
known or potential sources of pollution and contamination, including those
listed in Section 8 of the Water Well Standards, unless regulatory or
legitimate data requirements necessitate they be located closer.
- Flooding and Drainage. Monitoring wells should be located in areas
protected from flooding, if possible. Provisions for locating monitoring
wells in areas of flooding and drainage are contained in Section 8 of the
Water Well Standards.
- Accessibility. All monitoring wells shall be located an adequate
distance from buildings and other structures to allow access for well
maintenance, modification, repair, and destruction, unless otherwise approved
by the enforcing agency.
- Disposal of Wastes When Drilling in Contaminated or Polluted Areas.
Drill cuttings and wastewater from monitoring wells or exploration holes in
areas of known or suspected contamination or pollution shall be disposed of
in accordance with all applicable federal, State, and local requirements.
The enforcing agency should be contacted to determine requirements for the
proper disposal of cuttings and wastewater.