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

team. In cooperation with other groups such as the SWCD and the UMCE, the City and

BPA have initiated many sourcewater protection measures. initiatives follows:

A summary of these

  • Since 1972 the City has worked to manage development on an 1100-acre parcel of state-owned land on the west side of the Lake

  • The City and BPA have teamed on numerous occasions to minimize the impacts of development and mitigate potential threats to Branch Lake, such as:

    • o

      Stopping illegal subdivision of land

      • o

        Reversing approval for construction of a sludge dump site (1985)

      • o

        Reversing proposed siting of a toxic waste dump (1991)

  • A Watershed Protection Strategy was completed and adopted in 1992

  • A 250-foot Shoreland Overlay District zone sets lot size and frontage minimums on lake-front lots

  • The Branch Lake watershed is designated as a Natural Resource Zone with restrictions on permitted uses

  • With technical assistance from the UMCE and the University of Maine Water Research Institute, a watershed survey was completed in 1998 by 20 volunteers who identified 154 eroding sites

  • Thus far, five grants including a $46,000 USEPA grant have been used to implement erosion and sedimentation control Best Management Practices (BMPs) on some of the eroding sites identified during the 1998 watershed survey (BPA, SWCD, UMCE, DEP and City partnership)

  • The City owns approximately 150 feet of frontage at the treatment plant, 19 acres at the outlet, and 300 acres within the watershed

  • One parcel of land owned by the City is in a conservation easement

  • The City has a comprehensive plan with sourcewater protection measures

  • The BPA, SWCD and UMCE have an on-going aggressive invasive species survey, inspection and education campaign on Branch Lake

  • The City is currently holding public workshops, encouraging public participation on the planning and management of Branch Lake recreational uses, and gauging public support for additional ordinances

V. Summary of the Sourcewater Assessment by the Maine Drinking Water Program In 2003, the DWP completed a state-wide survey of drinking water supplies under the SWAP. This program was mandated in the latest Amendments to the Safe Drinking Water Act in 1996. The purpose of the program was to evaluate the susceptibility of each public drinking water source in Maine to contamination, and to communicate the results to the public. The DWP retained Drumlin, LLC (Drumlin) to provide technical assistance during this process. For further information on the results of the Branch Lake Assessment, please refer to the “Maine Public Drinking Water, Source Water Assessment Program, Ellsworth Water Department, Branch Lake Watershed” report by Drumlin, which was completed in January of 2003 and is on file at the Ellsworth City Hall.

The following information was used to assess Branch Lake:

  • Physical characteristics of the watershed

  • Raw water quality

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