Idaho Administrative Code
Title IDAPA 58 - Environmental Quality, Department of
Rule 58.01.08 - IDAHO RULES FOR PUBLIC DRINKING WATER SYSTEMS
Section 58.01.08.512 - FACILITY AND DESIGN STANDARDS: WELL LOT

Universal Citation: ID Admin Code 58.01.08.512

Current through August 31, 2023

A well lot shall be provided for wells constructed after November 1, 1977. The well lot shall be owned in fee simple by the supplier of water or controlled by lease or easement with a term of not less than the useful life of the well and be large enough to provide a minimum distance of fifty (50) feet between the well and the nearest property line. (3-24-22)

01. Use of Chemicals on the Well Lot. No pesticides, herbicides, or fertilizers shall be applied to a well lot without prior approval from the Department. (3-24-22)

02. Storage of Hazardous Materials on the Well Lot. No pesticides, herbicides, fertilizers, portable containers of petroleum products, or other materials known to be toxic or hazardous shall be stored on a well lot, except that: (3-24-22)

a. An internal combustion engine to drive either a generator for emergency standby power or a pump to provide fire flows, and an associated fuel tank, may be placed on the well lot. (3-24-22)

b. A propane or natural gas powered generator is preferable to reduce risk of fuel spillage. (3-24-22)

c. If a diesel or gasoline-fueled engine is used, the fuel tank and connecting piping must be approved by the Underwriter's Laboratory, Inc., double-walled, meet the requirements of the local fire jurisdiction, and include both spill prevention and overfill protection features. The tank must be above ground and may be contained within the structural base of the generator unit. A licensed water system operator shall be present during filling of the tank following a period of usage, or during periodic extraction and replacement of outdated fuel. (3-24-22)

d. Should the internal combustion engine be located within the pump house, the floor of the pump house shall be constructed so as to contain all petroleum drips and spills so that they will not be able to reach the floor drain(s). Engine exhaust shall be directly discharged outside the pump house. (3-24-22)

e. A spill containment structure shall surround all fuel tanks and be sized to contain at least one hundred ten percent (110%) of the fuel tank volume. The Department may require additional containment capacity in settings where accumulation of snow, ice, or rain water could be expected to diminish the usable capacity of the structure. (3-24-22)

03. Location of Hydrants. Hydrants of the frost free type shall be placed in the buried piping system at a minimum of five (5) feet away from the well casing to prevent drain water from accumulating and compromising the grout seal surrounding the well casing. (3-24-22)

04. Parking Lots and Vehicle Storage. No public parking or vehicle storage shall be allowed on the well lot, except that operation/maintenance vehicles may be temporary parked on the well lot during the normal course of business. (3-24-22)

Disclaimer: These regulations may not be the most recent version. Idaho may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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