| Abstract: | The Santa Cruz County Flood Control and Water Conservation District seeks to improve the existing network of observation wells to monitor water levels and ground-water quality in the Pajaro Valley subarea and the Aptos-Soquel, San Lorenzo, and Santa Cruz Coastal subbasins in California. The proposed network , consisting of 92 wells, is designed to monitor changes in storage and quality of ground water resulting from climatic changes and management-induced stresses. In the proposed network , water levels in all wells would be measured semiannually, in April and September, and monthly in a few key wells. The water-level measurements would provide data that could be used to determine changes in ground-water storage. In addition to the currently monitored characteristics--temperature, specific conductance, pH, and chloride ion concentration--inclusion of annual sampling and analysis for major ions and nutrients is proposed. The network would also include sampling and analysis for trace elements once every 4 years. More frequent analyses are proposed in areas where water-quality problems are known to exist or where potential water-quality problems are recognized. Analyses for major ions, nutrients, and trace elements are included in the proposed network to provide baseline data for monitoring long-term changes in water quality and to detect any unexpected changes in quality. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 7927 |
| Citation Author: | Blankenbaker, G. G.; Farrar, Christopher D. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 24 p., 2 over-size sheets ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 81-139 |
| Citation Search Results Text: | Evaluation of ground-water monitoring network, Santa Cruz County, California; 1981; OFR; 81-139; Blankenbaker, G. G.; Farrar, Christopher D. |
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| Citation Year: | 1981 |
| Type: | citation/reference |
| Text: | Evaluation of ground-water monitoring network, Santa Cruz County, California; 1981; OFR; 81-139; Blankenbaker, G. G.; Farrar, Christopher D. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1981/0139/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1981/0139/report.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1981/0139/plate-1.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1981/0139/plate-2.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
