Aquifer Feasibility Study
Monitoring Wells - June 2002
The New York City Department of Environmental Protection (NYCDEP) plans
to install six (6) groundwater monitoring wells in the Jamaica community in
June 2002. These wells are being installed in conjunction with the clean-up
of the West Side Corporation (WSC) property (107-10 180th Street), a 4.5 acre
class 2 inactive hazardous waste disposal site that was used for storage and
distribution of dry cleaning chemicals until 1992. Installation of the wells
will be for testing and monitoring purposes only, specifically to observe
water levels and test water quality. No water will be pumped for household
or industrial use.
Use of the WSC site to store and distribute dry cleaning chemicals resulted
in spills and other release of contaminants, principally perchloroethylene
(PCE or PERC), into soils and groundwater. The New York State Department of
Environmental Conservation (NYSDEC) and NYCDEP have jointly developed a plan
to clean up the WSC property and an adjacent area that currently extends approximately
¾ of a mile southeast of the site. NYSDEC will clean up soils at the
WSC site; NYCDEP is beginning the off-site groundwater portion of the clean-up
effort. This includes installation and operation of a large-capacity well
at Station 24 (180th Street and 106th Road), a former Jamaica Water Supply
Company pumping facility next to the WSC site. This new well will capture
the contaminated groundwater, thereby preventing it from spreading further.
The pumped groundwater will be treated and tested, as required by law, before
being discharged into the sewer system. Water from Station 24 will never
be distributed into the City's water supply.
The 6 monitoring wells that are being installed in June will track the effectiveness
of the Station 24 well, by measuring the quality, depth, and direction in
which groundwater is flowing.
Locations of Monitoring Wells
Three (3) wells will be installed at Station 24, an NYCDEP facility. Three
(3) wells will be installed curbside at the following locations:
- 175-03 110th Avenue (on the 175th Street side)
- Intersection of Sayres Avenue and 111th Avenue (at the wedge-shaped intersection
of the streets)
- 109-54 172nd Street (mid-block between 109th and 110th Avenues)
Installation of the wells will require one or two days of construction at
each location. Community disruption (primarily noise) will only occur on the
first day, when a rig will be used to drill a hole for the well. Monitoring
equipment will then be installed and grouted into place. If a second day of
work is required, no drilling will be involved. A 10" steel plate that
will cover the well will be the only visible feature following installation.
Well Monitoring and Maintenance
Once construction is complete, NYCDEP personnel will be on site once a week
(for approximately one hour) to collect the data and once every other month
(for 2-3 hours) to collect water samples for laboratory analysis.
Health and Safety
Well installation is being performed in accordance with NYSDEC's permitting
procedures. NYCDEP will adhere to all applicable environmental health and
safety standards during installation and throughout operation of the wells.
For example, water extracted for testing purposes will be removed from the
site in sealed barrels.
If you have any questions or would like additional information about the monitoring
wells and groundwater clean-up of the WSC site, please contact Bill Yulinsky
at (718) 595-5272.
March 7, 2007