20220518 15035300 1.0 TRUE TRUE drill_areas The purpose of the Water Well Drillers Act, section 256.600 to 256.640 Missouri Revised Statutes, and the regulations written to enforce this statute, is to establish standards that will protect Missouri's groundwater. The quality of groundwater in Missouri varies considerably across the state. Some areas have abundant, high quality groundwater while wells in other areas have natural highly mineralized or muddy water. In some areas of Missouri, pre-existing land use and other practices, such as waste disposal, have contaminated the aquifer. Because of the variability of groundwater quality in Missouri, these regulations can not guarantee that water produced from a properly constructed well will be of usable quality. The well construction regulations are designed to ensure that contamination from the surface is not entering the subsurface from an improperly constructed well. These regulations establish minimum specifications for well construction. In certain cases, more casing and grout may be necessary. Experienced permitted drillers and pump installers should be able to determine when more stringent construction will be necessary. Observation well groundwater monitoring To provide locations and well specifications for the groundwater observation well network. 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