The goal of the Clean Water Act (cwa) is to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters
WMA water withdrawal Summary (APPENDIX E, TABLE E5)
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WMA water withdrawal Summary (APPENDIX E, TABLE E5)
*System-wide withdrawal, all sources are not necessarily within this segment; however, Cohasset Water Department reported all water was withdrawn from Lily Pond between 2000 and 2002 (MassDEP 2003c). NPDES wastewater discharge summary (APPENDIX E, TABLEs E1 and E2)There are no direct NPDES wastewater discharges to Herring Brook, but a NPDES permit (MA0103098) was issued to the Cohasset Water Department to discharge from the public water supply treatment plant to Lily Pond, which is in the subwatershed of this segment. EPA terminated this permit when the general permit for the Lily Pond Water Treatment Plant (MAG640070) was issued in May 2005. Use AssessmentAquatic LifeHabitat and FlowThe poorly designed, deteriorating notched weir-pool fish ladder at Hunters Pond is impassable (Reback et al. 2004). BiologyDense growth of the non-native aquatic macrophyte Cabomba caroliniana was observed in both Lily Pond (ENSR 2003) and the Aaron River upstream from the Beechwood Street Dam (MassDEP 2001a). Based on the presence of the barrier to anadromous fish migration and the presumed infestation of Herring Brook with a non-native macrophyte, the Aquatic Life Use is assessed as impaired. Flow alterations from the water supply diversion are also of concern. primary and secondary contact recreation and aestheticsDense growth of the non-native aquatic macrophyte Cabomba caroliniana was observed in both Lily Pond (ENSR 2003) and the Aaron River upstream from the Beechwood Street Dam (MassDEP 2001a). The Recreational and Aesthetic uses are assessed as impaired for Herring Brook based on the presumed dense infestation of Herring Brook with a non-native aquatic macrophyte. Herring Brook (MA94-29) Use Summary Table
recommendations The fishway at Hunters Pond should be redesigned and replaced (Reback et al. 2004). Further investigate/define the extent of the infestation of Cabomba caroliniana. In order to maintain the integrity of aquatic life in Herring Brook flow regimes should be maintained as close to a natural regime as possible (i.e., the flashboards near Beechwood Street should be used as little as possible to reverse the flow of Aaron River and Herring Brook back into Lily Pond). If changes are implemented monitoring designed to document changes in water quality conditions should be conducted. Bound Brook (Segment MA94-18) Location: Flow control structure near Beechwood Street, Cohasset to outlet Hunters Pond, Scituate. Segment Length: 2.2 miles Classification: Class B Land-use estimates (top 3, excluding water) for the 11.3 mi2 subwatershed: Forest 75% Residential 16% Open Land 3% Bound Brook is listed on the 2002 Integrated List of Waters in Category 3. This segment had insufficient information to make assessments for any of the designated uses (MassDEP 2003a). Directory: eea -> docs -> dep -> water -> resources -> 71wqar09 dep -> Charles D. Baker Governor dep -> Charles D. Baker Governor dep -> Charles D. Baker Governor dep -> Index of Photographs dep -> Department of environmental protection one winter street, boston, ma 02108 617-292-5500 water -> Water Resource Management Planning 71wqar09 -> 2004 water quality assessment report Download 3.32 Mb. Share with your friends:
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