| Abstract: | Alimagnet, Farquar, and Long Lakes, in Apple Valley, Minn., were sampled from 1973-79 to determine their physical and chemical characteristics. A storm-sewer inlet to Alimagnet Lake was also sampled during two storms in 1978. The 1976-77 drought caused a more noticeable effect on the quality of the lakes than any other factor. Chloride concentrations were 10 to 15 milligrams per liter before the drought, but increased 2 to 4 times during the drought. Dissolved solids reacted similarity. Dissolved oxygen and pH were governed mainly by biological activity. In February 1977, dissolved-oxygen concentration was less than 0.5 milligrams per liter in the three lakes. Ratios between mean total nitrogen and mean total phosphorus ranged from 22:1 to 26:1. Trophic-state indices indicate that the lakes are eutrophic. Blue-green algae dominated the phytoplankton populations. Storms sampled at a storm-sewer inlet to Alimagnet Lake showed higher concentrations of chromium, copper, nickel, and zinc than of lead, arsenic, cadmium, and mercury. Total phosphorus for the September 1978 storm had a concentration of 1.7 milligrams per liter, which means that approximately 29 pounds entered the lake during the 5.5-hour sampling period. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 27591 |
| Citation Author: | Have, M. R.; Payne, G. A.; Ayers, M. A. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 38 p. :ill. maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, Water Resources Division, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 81-40 |
| Citation Search Results Text: | Water quality of Alimagnet, Farquar, and Long Lakes in Apple Valley, Minnesota; 1981; WRI; 81-40; Have, M. R.; Payne, G. A.; Ayers, M. A. |
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| Citation Year: | 1981 |
| Type: | citation/reference |
| Text: | Water quality of Alimagnet, Farquar, and Long Lakes in Apple Valley, Minnesota; 1981; WRI; 81-40; Have, M. R.; Payne, G. A.; Ayers, M. A. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1981/0040/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1981/0040/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, Water Resources Division, |
