Minnesota Administrative Rules
Agency 144 - Health Department
Chapter 4725 - WELLS AND BORINGS
WELL AND BORING GENERAL CONSTRUCTION AND USE REQUIREMENTS
Part 4725.2050 - USE OF WELLS OR BORINGS FOR DISPOSAL OR INJECTION PROHIBITED

Universal Citation: MN Rules 4725.2050

Current through Register Vol. 49, No. 13, September 23, 2024

A well or boring must not be used for disposal or injection of surface water, groundwater, or any other liquid, gas, or chemical, except for groundwater thermal exchange devices, bored geothermal heat exchangers, drilling fluids, vertical turbine prelubrication water, treatment chemicals, priming water, water used for hydrofracturing, and water used for disinfection according to parts 4725.1831, 4725.1833, 4725.2950, 4725.3250, 4725.3725, 4725.5050, 4725.5475, and 4725.5550. This does not prohibit the injection of air for drilling, development, or sparging.

A. Water used to cool parts of engines, air compressors or other equipment, or air conditioning equipment must not be returned to a well or any part of a potable water system except if permitted as a groundwater thermal exchange device under part 4725.1831 and Minnesota Statutes, section 103I.621.

B. A well may be used for the injection of water to conduct a slug test if the injected water was originally taken from that well or is potable water.

Statutory Authority: MS s 103I.101; 103I.111; 103I.205; 103I.221; 103I.301; 103I.401; 103I.451; 103I.501; 103I.525; 103I.531; 103I.535; 103I.541; 103I.621; 144.05; 144.12; 144.383; 157.04; 157.08; 157.09; 157.13

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