Trends in nitrate and dissolved-solids concentrations in ground water, Carson Valley, Douglas County, Nevada, 1985-2001
Water-Resources Investigations Report
2003-4152
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Abstract
Analysis of trends in nitrate and total dissolved-solids concentrations over time in Carson Valley, Nevada, indicates that 56 percent of 27 monitoring wells that have long-term records of nitrate concentrations show increasing trends, 11 percent show decreasing trends, and 33 percent have not changed. Total dissolved-solids concentrations have increased in 52 percent of these wells and are stable in 48 percent. None of these wells show decreasing trends in total dissolved-solids concentrations. The wells showing increasing trends in nitrate and total dissolved-solids concentrations were always in areas that use septic waste-disposal systems. Therefore, the primary cause of these increases is likely the increase in septic-tank usage over the past 40 years.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Trends in nitrate and dissolved-solids concentrations in ground water, Carson Valley, Douglas County, Nevada, 1985-2001 |
| Series title | Water-Resources Investigations Report |
| Series number | 2003-4152 |
| DOI | 10.3133/wri034152 |
| Edition | - |
| Year Published | 2003 |
| Language | ENGLISH |
| Description | 6 p. |
| Google Analytic Metrics | Metrics page |