Download or read book Ground-water Quality Classification and Recommended Septic Tank Soil-absorption-system Density Maps, Castle Valley, Grand County, Utah written by Mike Lowe and published by Utah Geological Survey. This book was released on 2004 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This CD-ROM contains a 30 page report with 22 page appendix, and seven maps at 1:15,000 to 1:30,000 scale in easily readable PDF format that address ground-water quality in Castle Valley's valley-fill aquifer and provide recommendations for septic tank soil-absorption-system density based on potential water-quality degradation associated with use of these systems. The maps are described in detail in the report and show geology, valley-fill thickness, total-dissolved-solids concentration, nitrate concentration, ground-water quality class, potential containment sources, and recommended lot size."--Sticker on back of case.