Drinking-water quality and variations in water levels in the fractured crystalline-rock aquifer, west-central Jefferson County, Colorado. Water-resources investigations (interim)
In parts of the area, water for domestic use obtained from the fractured crystalline-rock aquifer contained excessive concentrations of dissolved fluoride, dissolved nitrite plus nitrate, dissolved solids, dissolved iron, dissolved manganese, dissolved zinc, coliform bacteria, gross alpha radiation, and gross beta radiation. Based on water-quality analyses from 26 wells located in small urbanized areas, water from 21 of the wells contained excessive concentrations of one or more constituents. Local variations in concentrations of 15 chemical constituents, specific conductance, and water temperature were statistically significant. Depths to water in 11 non-pumping wells ranged from 1 to 15 feet annually. Three-year trends in water-level changes in 6 of the 11 wells indicated a decrease in stored water in the aquifer.
- Research Organization:
- Geological Survey, Lakewood, CO (USA). Water Resources Div.
- OSTI ID:
- 5158554
- Report Number(s):
- PB-80-128580
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
AQUIFERS
BACTERIA
CESIUM ISOTOPES
COLIFORMS
COLORADO
DATA FORMS
DRINKING WATER
ELEMENTS
ENVIRONMENTAL QUALITY
FLUORIDES
FLUORINE COMPOUNDS
GROUND WATER
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
IRON
ISOTOPES
LEVELS
MANGANESE
METALS
MICROORGANISMS
MONITORING
NITRATES
NITROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
RADIUM ISOTOPES
ROCKY MOUNTAIN REGION
SEASONAL VARIATIONS
STRONTIUM ISOTOPES
SURFACE WATERS
TABLES
TEMPERATURE MEASUREMENT
TRACE AMOUNTS
TRANSITION ELEMENTS
USA
VARIATIONS
WATER
WATER POLLUTION
WATER QUALITY
WATER RESERVOIRS
ZINC