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Ellsworth Sourcewater Protection Plan December 2004 Rev. September 2005 Page 6 of 63

II. The Stakeholders The Branch Lake Sourcewater Protection Stakeholders form a lively group unusually well-versed in sourcewater protection. They work well together and were ready to get started on an action plan at the first meeting. A list of the members and their affiliations follows:

Larry Wilson, Superintendent, Water Department Michele Gagnon, City Planner, City of Ellsworth Tom Fullam, Code Enforcement Officer (CEO), City of Ellsworth Myron Grant, Highway Foreman, City of Ellsworth Bernie Hussey, Highway Grader Operator, City of Ellsworth Anne Hayes, Branch Pond Association (BPA) & Ellsworth Water Supply Commission Laura Wilson, Assistant Scientist, University of Maine Cooperative Extension Service (UMCE) Liz Petterson, District Manager, Hancock County Soil & Water Conservation District (SWCD) Chuck McClead, watershed resident in the Town of Dedham (Lucerne-in-Maine) Susan Breau, Sourcewater Program Manager, MRWA

  • III.

    Introduction to Branch Lake and the Ellsworth Water Department

    • A.

      Natural Setting of Branch Lake and the Watershed

The Branch Lake watershed is located in the mid-coast section of Maine in the City of

Ellsworth and the Towns of Dedham and watershed location and topography.

Orland in Hancock Figure 2 shows

County. Figure land features

1 shows the from aerial

photographs.

The

watershed

area

is

underlain

by

Devonian

granite.

Glacial

heterogeneous mixture of sand, silt, clay and stones, is the surficial material in the

till, a area.

The entire

watershed of Branch Lake

(direct and indirect drainage)

is

80.70

square

kilometers

(31.16 sq. mi.). The direct

drainage area of Branch Lake

is

60.59

square

kilometers (23.39 sq. streams and brooks,

mi.). Recharge to the lake consists of surface runoff, inflow from groundwater influx, and direct precipitation on the lake surface.

The lake is more than three miles long and has two basins. Stream which flows to the Union River, downgradient of which

It drains to Branch is the ocean.

Lake

B. Branch Lake Characteristics and Water Quality The photographs in Appendix A show Branch Lake and part of the watershed. The Maine Volunteer Lake Monitoring Program (VLMP), funded in part by the USEPA and Maine Department of Environmental Protection (DEP), trains and assists volunteers state-wide in testing surface water quality. Water quality data has been sporadically collected on Branch Lake by VLMP monitors since 1974. Selected characteristics of Branch Lake are listed in Table 1. A VLMP report from 2003 notes that water quality in the lake is currently excellent in the north basin, and above average in the south basin. The data indicate that the south basin, where the Water Department intake is located, has higher temperatures, greater nutrient enrichment and lower water quality than the north basin. The Water Department and local residents have observed localized algal blooms in the lake. The lake supports both a warm and a cold water fishery.

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