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| Dorrs Pond |
Namesake: George Horace Dorr, who purchased the property in the 1800's
Location: Livingston Park, on Daniel Webster Highway in north Manchester
Type of Waterbody: Artificial pond created by dam on Ray Brook in 1862
Inlet/Outlet: Ray Brook, beginning at Goldfish Pond in Hooksett and emptying into the Merrimack River in north Manchester
Watershed Area: 1,472 acres (596 hectares)
Waterbody Size: 17.6 acres (7.1 hectares)
Volume of Water: 92,000 m3
Average Water Depth: 4.26 feet (1.3 meters)
Maximum Water Depth: 9.5 feet (2.9 meters)
Shoreline Length: 5,248 feet (1,600 meters)
Elevation: 270 feet
Percent of Watershed Impounded: 0.5%
Flushing Rate: 31.2 times/year
Uses: Paddling, fishing, ice skating, hiking and biking
Amenities: Livingston Park, playground, athletic fields, swimming pool, trail system
Lake Association: Dorrs Pond Preservation Society (DPPS)
Water Quality Reports & Graphs
Water Quality Monitoring Information
Water Quality Data Graphs
NH DES VLAP Reports: 2000, 2002, 2003, 2004, 2005
Restoration Projects:
Pond Project Prioritization Status Report
Fact Sheets
Dorrs Pond Facts
History of Dorrs Pond
Common Exotic Plants of Dorrs Pond
Common Fish at Dorrs Pond
Sampling Station May:
Dorrs Pond
Bathymetric Depth Map:
Dorrs Pond
Vegetation Inventory:
Dorrs Pond Vegetation Inventory.
Fish Tissue Analysis:
Dorrs Pond largemouth bass tissue sample analysis found small amounts of chromium, copper, manganese, selenium, zinc and mercury. None of these metals were found in high enough concentrations to constitute a health risk to humans. No other contaminants tested for were found above detectable limits. The fish at Dorrs Pond are safe to eat.
Sediment Sample Analysis:
Dorrs Pond sediment core samples contained high levels of several metals. Copper, lead, manganese, mercury, nickel and zinc were found to be exceeding the “severe effects level” criteria for aquatic organisms. The pesticide DDT constituent p,p’-DDE was also found to exceed the “lowest effects level” criteria for aquatic organisms. These levels of pollution were not unexpected considering the large amount of urban runoff the pond receives.
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