The Boothbay Region Water District has released new reports on Adams Pond and Knickerbocker Lake. The first report is an update on Adams Pond and Knickerbocker Lake water quality from BRWD’s monitoring program. The other three reports, a community buildout analysis and lake loading response models, were prepared by Forrest Bell Environmental Associates (FBE) under contract to BRWD. These FBE reports are intended to assist the BRWD, the Town of Boothbay and watershed property owners with developing strategies, including zoning ordinances, to protect the Boothbay Region’s public water supplies.
The reports conclude that while both Adams Pond and Knickerbocker Lake currently meet standards for medium productive lakes, they are at the high end of the productivity scale and any further degradation in water quality would make the lakes more susceptible to algae blooms and necessitate more treatment to serve as public drinking water. Little Knickerbocker Lake appears already to be degraded, with no oxygen in much of the water column through the growing period, elevated chlorophyll-a levels (indicative of algae), poor water clarity and recycling of phosphorus from bottom sediments.
Buildout analyses and lake loading models indicate that under current ordinances complete development of the watershed will result in an unacceptable decline in water quality in both lakes, resulting in a situation where algae blooms would be expected, property values would drop, and water would become significantly more expensive to treat. Models also indicate that while protecting as much as one-third of watershed land from development would improve this water quality outcome, this amount of conservation would not be adequate to protect lake water quality under full buildout.
The reports suggest that a coordinated approach to watershed land conservation, improved watershed zoning ordinances and remediation of non-point source pollution will be necessary to keep Adams Pond and Knickerbocker Lake healthy.
Adams Pond and Knickerbocker Lake 2017 Water Quality Report. Boothbay Region Water District. 2018
Adams Pond Lake Loading Response Model. Forrest Bell Environmental Associates. 2018.
Knickerbocker Lake Loading Response Model. Forrest Bell Environmental Associates. 2018.
Buildout Analysis Knickerbocker Lake and Adams Pond. Forrest Bell Environmental Associates. 2018.