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Commercial Property, Acton, MA
Performed a 21E Assessment, Preliminary Assessment and phased
field sampling investigations for a 60-acre site contaminated
by a leaking underground tank and prior waste oil disposal
practices. Designed low cost clean-up and remediation plan
that produced results below action levels in a very short
period of time and led to a Waiver of Approvals by DEP.
Contaminant Source Investigation, Water Supply District,
Acton, MA
Conducted hydrogeological study that traced contaminants of
three municipal water supply wells along a 25 to 30 year flow
path back to the probable source areas at a Superfund Site.
Work was instrumental in the settlement of a 3.2 million dollar
lawsuit for treatment of the ground water supply sources.
Technical Advisor to Citizens Groups Monitoring Superfund
Site Investigations, Woburn and Acton, MA
Recipient of three EPA technical assistance grants for
professional assistance to citizens' groups overseeing characterization
and remediation of extensive sites contaminated by a wide
range of waste materials and sludge at three major Superfund
sites.
Former Farm Property, North Reading, MA
Investigation of soil and ground water conditions on a 44-acre
parcel of land on the banks of the Ipswich River which was
proposed for residential and recreational development. Based
upon a historical, municipal and state file review, P&S investigated
surficial soil conditions for levels of pesticide use. Subsurface
investigation s of soil and groundwater quality were also
conducted to assess impact of known episodes of dumping on
the property.
New Hampshire DES Division of Water Supply and Pollution
Control
On-site chemical reconnaissance using soil gas and MicroWell
technology along with on-site analysis for rapid assessment
of contaminant conditions at several sites under investigation
by the state. P&S has been able to quickly assess the extent
and level of contamination of plumes at sites under investigation
by the state.
Gasoline Station Assessments, Long Island, NY
Installation of MicroWells and on-site GC analyses of ground
water samples to delineate plumes of gasoline at over 30 sites,
some threatening public water supplies
Property Purchase, Littleton, MA
Site assessment of a former farm property, including sampling
and analysis of surficial and subsurface soils and ground
water. Developed plan and supervised removal of contaminated
soils resulting in a Waiver of Approvals by DEP for clean
up actions.
National Park Site, Wellfleet, MA
Ground water study at sensitive pond-side locations accessed
by means of a boat to avoid damage to a sensitive environment.
Installations by P&S's non-motorized K202 rig of MicroWells
in clusters for use as piezometers to study ground water flow
conditions and long term water quality.
Massachusetts DEP SARRS II Subcontractor, Various Massachusetts
Sites
Perform subsurface and mobile laboratory investigations to
delineate volatile organic contaminants in soil atmosphere,
soil and ground water at sites under investigation by DEP.
Investigations have ranged from gasoline station site assessments
to ground water studies of threats to municipal water supply
wells.
Industrial Property, NH
Installed conventional monitoring wells and MicroWells to
assess the horizontal and vertical reach of extensive ground
water and soil contamination caused by long term disposal
of VOC. With New Hampshire DES approval, P&S set up a ground
water remediation system as well as a Vapor Extraction System
involving MicroWells screened in the vadose zone. Pilot testing
of the treatment system showed that all VOC levels in the
water prior to discharge were below EPA discharge standards.
Investigation of Threat to Municipal Well, Barnstable,
MA
Confirmation of industrial disposal area as source of a narrow
plume of contamination that extended over a distance of 2,400
feet using MicroWells and on-site GC analysis. P&S advanced
MicroWell technology capabilities in order to rapidly penetrate
deposits of cobbles and reach depths to 70 feet BGS.
Additional Recent Environmental Projects 
Foster Wheeler Environmental Corp.: sediment sampling
beneath New Bedford Harbor
Roux Associates: soil gas and ground water investigation
at Superfund Site, Woburn MA
Foster Wheeler Environmental Corp.: soil sampling at
Portsmouth Naval Shipyard
Harding ESE: ground water investigations at the former
Fort Devens, MA
Hollingsworth and Vose Co.: landfill monitoring and
assessment
USGS: environmental studies of the Walden Pond sanctuary
Jacobs Engineering Group: plume dilineation beneath
ponds at Otis Air National Guard Base
EPA Technical Assistant Grant Contracts
W.R. Grace, Acton, Massachusetts
Wells G&H, Woburn, Massachusetts
Industriplex Site, Woburn, Massachusetts
Nuclear Metals, Concord, Massachusetts
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