Effects of residential wastewater treatment systems on ground-water quality in west-central Jefferson County, Colorado

Hall, Dennis C.; Hillier, D. E.; Nickum, Edward; Dorrance, W. G.

Abstract:

The use of residential wastewater-treatment systems in Evergreen Meadows, Marshdale, and Herzman Mesa, Colo., has degraded ground-water quality to some extent in each community. Age of community; average lot size; slope of land surface; composition, permeability, and thickness of surficial material; density, size , and orientation of fractures; maintenance of wastewater-treatment systems; and presence of animals are factors possibly contributing to the degradation of ground-water quality. When compared with effluent from aeration-treatment tanks, effluent fom septic-treatment tanks is characterized by greater biochemical oxygen demand and greater concentrations of detergents. When compared with effluent from septic-treatment tanks, effluent from aeration-treatment tanks is characterized by greater concentrations of dissolved oxygen, nitrite, nitrate, sulfate, and dissolved solids. (USGS)

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USGS Numbered Series

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38158

Citation Author:

Hall, Dennis C.; Hillier, D. E.; Nickum, Edward; Dorrance, W. G.

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ENGLISH

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v, 116 p. :ill., maps ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

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81-73

Citation Search Results Text:

Effects of residential wastewater treatment systems on ground-water quality in west-central Jefferson County, Colorado; 1981; OFR; 81-73; Hall, Dennis C.; Hillier, D. E.; Nickum, Edward; Dorrance, W. G.