Download or read book A Reconnaissance of Hydrogeology and Ground Water Quality in Three Hillside Basins at the Perimeter of the Rathdrum Prairie Aquifer Kootenai County Idaho written by Deanna L. Clarkson and published by . This book was released on 1998 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: "From July to September, 1997, a reconnaissance investigation was completed of the hydrogeology and ground water quality in three hillside basins adjoining the Rathdrum Prairie aquifer in Kootenai County, Idaho. These basins contribute recharge to the Rathdrum Prairie-Spokane Valley aquifer system, a drinking water source protected by both state and federal designations requiring maintenance of the high quality of its water. The investigation of hillside basins was implemented in response to the 1996 discovery of nitrate contamination in public drinking water supplies at the southern margin of the Rathdrum Prairie in South Post Falls, Idaho. Nitrate contamination is linked to septic discharge and fertilizers, and causes a potentially fatal illness in infants. To assess the quality of ground water in the hillside regions, three study areas were chosen to represent basins of relatively high, intermediate, and low residential development density as measured by the number of onsite septic systems they contained. These basins were: high density, Nettleton Gulch, east of Coeur d'Alene; intermediate density, the South Greenferry Road basin south of the Spokane River; and low density, Hidden Valley, southwest of Rathdrum. Ground water samples were collected from ten existing wells in each basin. To establish the quality of the ground water, the samples were analyzed for conductivity, temperature, pH, alkalinity, total major ions (calcium, magnesium, sodium, sulfate, chloride), total iron, and nitrite plus nitrate as nitrogen. Analysis of the ground water samples was accomplished in the field and by the Coeur d'Alene branch of the Idaho State Laboratory. Two sampling rounds were completed: in July, when the water table was high, and in September, when the water table was falling. No statistically significant differences were found between the July and September water samples. The measurements of the depth to the water table in each basin established that ground water flow in the basins was toward the Rathdrum Prairie aquifer. The ground water in the study basins was compared with the Rathdrum Prairie aquifer water, as represented by the results of the July 1997 Panhandle Health District monitoring of 29 public drinking water wells on the Rathdrum Prairie. The ground water in the study basins and Rathdrum Prairie aquifer presented similar calcium bicarbonate major ion profiles, although in Hidden Valley and Nettleton Gulch, the ground water, as evidenced by its higher conductivity, was more mineralized than the water of the main aquifer. In the Rathdrum Prairie aquifer, the median nitrate concentration was 0.971 milligrams per liter (mg/L), while the median chloride concentration was 2.0 mg/L. In the low density development, Hidden Valley, the median nitrate concentration was the lowest of the study basins at 0.241 milligrams per liter (mg/L). The median chloride concentration in samples of Hidden Valley was 1.3 mg/L, also the lowest among the study basins. In Nettleton Gulch, where development density was high, the median nitrate was 1.09 mg/L, intermediate among the study basins, while the median chloride concentration was the highest at 4.0 mg/L. The highest nitrate concentrations were detected in the basin of intermediate development, the South Greenferry Road study basin, where the median nitrate concentration was 2.61 mg/L, and the median chloride concentration was 3.0 mg/L. The highest nitrate concentration of the study was 10.5 mg/L found in a well at the site of a small farm and commercial greenhouse in the South Greenferry Road basin. The highest nitrate concentration in Nettleton Gulch was 3.90 mg/L. The elevated chloride and nitrate concentrations in the South Greenferry Road basin and Nettleton Gulch suggest the influence of septic discharge on the ground water. In addition, fertilizer was a probable source of the unexpectedly high nitrate concentrations in the South Greenferry Road basin. The areas of the basins most vulnerable to ground water contamination are those with highly permeable, low water capacity soils. An estimate of total nitrogen loading in the study basins suggests that the use of fertilizers may introduce a load at least equivalent to septic discharge. One small farm in the South Greenferry Road basin alone produces an annual nitrogen load equivalent to the estimated nitrogen load from the basin's total septic discharge. The results of the current study imply that limiting the use of onsite septic systems and constructing sewers is an essential part of protecting the ground water of Kootenai County, because septic discharge is the critical component of the nitrate load that can be addressed through land use planning and regulation. Control of the additional source of nitrate contamination, fertilizer use, is dependent on the voluntary compliance of residents educated in best management practices"--Document.
Download or read book Reconnaissance Hydrogeology and Water Quality of the Swinomish Indian Reservation Skagit County Washington written by S. S. Embrey and published by . This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Third National Ground Water Quality Symposium written by and published by . This book was released on 1977 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeology and Water Quality of Basin a Neck Area Rocky Mountain Arsenal Denver Colorado written by ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB. and published by . This book was released on 1979 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purposes of this study were to accomplish the following tasks with the BANA(Basin a Neck Area): (1) Quantify the ground water flow regime at the neck of basin A for flow exiting Basin A to the northwest, (2) Quantify the distribution of various pollutants in the ground water flow system exiting basin A to the northwest, (3) Identify any other ground water flow paths (besides the exit flow to the northwest (in the alluvial aquifer)) leaving basin A, (4) To determine the areas of significant movement for pollutants in the ground water flow exiting Basin A. This report presents the findings of the above tasks performed by WES. The results of physical laboratory test on undisturbed samples are incomplete, and will be published as an addendum to this report.
Download or read book The Hydrogeological Framework and a Reconnaissance of Ground water Quality in the Piedmont Province of North Carolina with a Design for Future Study written by Douglas Harned and published by . This book was released on 1989 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Survey of Kootenai County Area Idaho written by Charles J. Weisel and published by . This book was released on 1981 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Water Summary written by and published by . This book was released on 1993 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Water Information Systems Roadmap written by and published by . This book was released on 1994 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Water Information System NWIS written by and published by . This book was released on 1998 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Spokane Valley Out in the gravel written by and published by . This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crustal Permeability written by Tom Gleeson and published by John Wiley & Sons. This book was released on 2016-11-30 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permeability is the primary control on fluid flow in the Earth’s crust and is key to a surprisingly wide range of geological processes, because it controls the advection of heat and solutes and the generation of anomalous pore pressures. The practical importance of permeability – and the potential for large, dynamic changes in permeability – is highlighted by ongoing issues associated with hydraulic fracturing for hydrocarbon production (“fracking”), enhanced geothermal systems, and geologic carbon sequestration. Although there are thousands of research papers on crustal permeability, this is the first book-length treatment. This book bridges the historical dichotomy between the hydrogeologic perspective of permeability as a static material property and the perspective of other Earth scientists who have long recognized permeability as a dynamic parameter that changes in response to tectonism, fluid production, and geochemical reactions.
Download or read book Ground Water in the Pullman Area Whitman County Washington written by Bruce LaVerne Foxworthy and published by . This book was released on 1963 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crossword Solver written by Anne Stibbs and published by Bloomsbury Pub Limited. This book was released on 2000 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: An aid to solving crosswords. It contains over 100,000 potential solutions, including plurals, comparative and superlative adjectives, and inflections of verbs. The list extends to first names, place names and technical terms, euphemisms and compound expressions, as well as abbreviations.
Download or read book The Rockhound s Guide to Washington written by Bob Jackson and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paleohydrology and Sedimentology of Lake Missoula Flooding in Eastern Washington written by Victor R. Baker and published by Geological Society of America. This book was released on 1973-01-01 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Boise Project written by William Joe Simonds and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Minerals and Rocks written by Society of Mining Engineers of AIME. and published by . This book was released on 1983 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
