X hits on this document

165 views

0 shares

0 downloads

0 comments

15 / 66

Ellsworth Sourcewater Protection Plan December 2004 Rev. September 2005 Page 12 of 63

7. Boat Launch A boat launch presents a variety of PCSs regardless of its size, and presents many PCSs normally associated with shoreline development and surface use. The PCSs include:

  • o

    Polluted runoff (nutrients, petroleum products, etc.) from impervious and/or compacted land surfaces

    • o

      Introduction of aquatic invasive species (please see Note 1 below)

    • o

      Introduction of petroleum products and MTBE from in-lake use

    • o

      Introduction of nitrogen compounds and pathogens from bodily contact and human waste

    • o

      Solid waste disposal

    • o

      Access for intentional harm to the source or drinking water system

A variety of concurrent measures must be taken for a boat launch to safely exist on a drinking water supply lake, including:

  • o

    Adhering to erosion and sedimentation control BMPs during construction, maintenance and operation of the facility

    • o

      Controlling and monitoring access to the lake to prevent an aquatic invasive species infestation

    • o

      Posting signage that informs users that the Lake is a drinking water supply and lists recreational use BMPs

    • o

      Providing privies and facilities for solid waste disposal

    • o

      Restricting access around the intake

Note 1: Some stakeholders report having observed plant material adhering to a kayak during routine boat inspections for invasive aquatic plants. For this reason, hand launch vessels are considered a potential vector for invasive aquatic plant introduction to Branch Lake.

8. Public Swimming Beach PCSs associated with a swimming beach include polluted runoff (nutrients, petroleum products, etc.) from impervious and/or compacted land surfaces, introduction of nitrogen compounds and pathogens from bodily contact and human waste, and solid waste disposal. They may also provide access for intentional harm to the source or drinking water system. Measures to help mitigate these impacts include:

    • o

      Adhering to erosion and sedimentation control BMPs during construction, maintenance and operation of the facility

      • o

        Posting signage that informs users that the Lake is a drinking water supply and lists recreational use BMPs

      • o

        Providing privies and facilities for solid waste disposal

      • o

        Restricting access around the intake

  • D.

    Determination of Susceptibility and Capacity to Influence Vulnerability to PCSs

In partnership with the DWP, MRWA developed a set of twenty questions to help determine the capacity of a drinking water system to influence its vulnerability to PCSs. The questions and summary of the discussion with the Water Department Superintendent follow.

Document info
Document views165
Page views165
Page last viewedThu Dec 08 16:40:54 UTC 2016
Pages66
Paragraphs2177
Words20120

Comments