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Water supply potential of the Lake Sally System, Marquette County, Michigan

Open-File Report 78-1046

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Abstract

The Lake Sally system, Marquette County, Mich., consists of six lakes in the headwaters of Ely Creek. This system is the source of water for Ishpeming and several small communities in the central part of Michigan 's Upper Peninsula. Precipitation and overland runoff account for 93 percent of the water supplied to the system. Below-average precipitation in 1976 and early 1977 resulted in low lake levels and cast doubt on the system 's ability to meet water demands. Water supplied to the Lake Sally system is estimated to be 2.57 cubic feet per second (cfs) when precipitation is average. Use of water by Ishpeming is about 3.5 cfs. The city obtains some water from lakes outside the system when the supply from the Lake Sally system is insufficient. Results of a base-flow investigation on Ely Creek, the outlet of the Lake Sally system, indicate that ground-water flow to the system is between 0.08 and 0.17 cfs. (Woodard-USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Water supply potential of the Lake Sally System, Marquette County, Michigan
Series title:
Open-File Report
Series number:
78-1046
Edition:
-
Year Published:
1978
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
v, 21 p. :ill., maps ;28 cm. --