Recently, the Borough of Spring Lake retained Najarian
Associates to conduct environmental and engineering studies of Wreck
Pond. The Pond is
located along the Spring Lake-Sea Girt Boundary, adjacent to
recreational beaches on the Atlantic Ocean. Bacteria-laden discharges
from the Pond reportedly have been responsible for 50 of 59 ocean
swimming bans in New Jersey during 2004, and 58 of
80 during 2003.
Potential sources of contamination include stormwater flow
into the Pond, waterfowl use, pet waste, and residential fertilizer
use. Studies are needed
to determine the actual condition of the Pond and to determine
optimal control measures to improve water quality, ecological
habitat and flood control.
The
NJDEP has proposed dredging of the pond to improve water quality and
reduce the impacts of overflows on Ocean water quality. Some of the sandy material
taken from the Pond is proposed for beach replenishment. Concerns have been raised
about possible environmental impacts associated with the dredging,
including impacts to the shorebird populations that use the
Pond. Further, the
State is planning to extend the outflow pipe from the Pond farther
out into the ocean to reduce the impact of any discharge on the
bathing beaches.
Wreck Pond exchanges water with the ocean through a 7 foot diameter outfall pipe.
This pipe conveys ocean water into the pond during ocean high tides,
and allows water to drain out of the pond during ocean low tides.
In addition to ocean water, the pond receives tributary flows,
as well as stormwater flows through outfall structures from surrounding residential areas. The
Pond’s watershed area is approximately 15 square miles and
contains a mix of wooded areas, agricultural areas, low to medium
density residential areas, and mixed use areas. In addition to tributary
streams, the Pond receives direct stormwater flows through outfall
structures from surrounding residential areas.
The
Borough has requested a study that will evaluate alternative
solutions to improve the water quality of Wreck Pond and reduce
beach closings related to pond outflow, while preserving habitat
quality. To this end,
Najarian Associates will provide technical services to
survey existing structures, incorporate watershed data into a GIS
database, conduct hydrologic and hydraulic modeling of the Pond and
brooks, develop a pollutant budget, sample flow and water quality
and conduct environmental impact analyses. All appropriate alternatives
to Pond restoration will be evaluated, along with possible methods
to control outlet flows from the pond and transport of sediments or
bacterial-laden waters to the recreational ocean
waters.
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