| Abstract: | Physical and chemical data were collected from four surface-water sites, six ground-water sites, and two bottom-sediment sites during 1992-93. Specific conductance, hardness, alkalinity, and dissolved- solids concentrations generally were higher in ground water than in surface water. The median concentrations of dissolved major ions, with the exception of potassium, were higher in ground water than in surface water. In surface water and ground water, calcium was the dominant cation, and bicarbonate was the dominant anion. Concentrations of dissolved nitrite and nitrite plus nitrate in surface water and ground water did not exceed the U.S. Environmental Protection Agency maximum contaminant levels of 1 and 10 milligrams per liter for drinking water, respectively. Ammonium plus organic nitrogen in bottom sediment was detected at the highest concentration of any nitrogen species. Median values for most of the dissolved trace elements in surface water and ground water were below the detection levels. Dissolved trace elements in surface water and ground water did not exceed the U.S. Environmental Protection Agency maximum contaminant levels for drinking water. Trace-element concentrations in bottom sediment were similar to trace-element concentrations reported for soils of the western conterminous United States. Several organochlorine pesticides and priority pollutants were detected in surface-water and bottom-sediment samples; however, they did not exceed water-quality standards. Pesticides or priority pollutants were not detected in ground-water samples. |
| Genre: | USGS Numbered Series |
| ProdID: | 30056 |
| Citation Author: | Tadayon, Saeid |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 57 p. :ill., maps ;28 cm. |
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| Citation Publisher: | U.S. Dept. of the Interior, U.S. Geological Survey ;
Open-File Section [distributor], |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 95-4062 |
| Citation Search Results Text: | Quality of water and chemistry of bottom sediment in the Rillito Creek basin, Tucson, Arizona, 1992-93; 1995; WRI; 95-4062; Tadayon, Saeid |
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| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Quality of water and chemistry of bottom sediment in the Rillito Creek basin, Tucson, Arizona, 1992-93; 1995; WRI; 95-4062; Tadayon, Saeid |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1995/4062/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1995/4062/report.pdf |
| Date Other: | Wed, 1 Nov 1995 00:00 -0600 |
| Publisher: | U.S. Dept. of the Interior, U.S. Geological Survey ;
Open-File Section [distributor], |
