Client Focused, Results Oriented

Cornerstone environmental services focus on helping our clients achieve results that save money and create opportunity where liability may have once existed. With a history of excelling in the solid waste industry, Cornerstone professionals are also known for providing environmental services in other commercial circles, including chemical, pharmaceutical, banking, legal, real estate, pulp and paper, metals finishing, agricultural and transportation.

Cornerstone personnel work with clients from the initial planning phases through compliance monitoring. We have provided site investigation and engineering services at a full range of sites, including operating and inactive industrial facilities, hazardous waste sites, landfills and commercial facilities. Our work has spanned subsurface conditions from coastal plains to fractured rock environments, and has addressed a range of pollutants.

Our experience with technologies and site

conditions include:

• In situ remediation of small-scale petroleum spills

• Asbestos-containing materials at large commercial properties

• Contaminated sediments and soils removal

• Groundwater pumping and treatment

• In situ treatment

• Containment

• Demolition

• Excavation and disposal

What Sets Cornerstone Apart?

• Creative, customized approaches - Our experts are skilled at developing successful project approaches that integrate redevelopment or site use goals, sustainability, protection of human health and the environment, and cost.

• Building consensus - We bring stakeholders together to achieve results that meet client needs while anticipat-ing regulator and public concerns.

• Nationwide presences - Offering perspective and knowledge of local business and regulatory issues, we also incorporate regional, national, and international perspec-tives.

• Integration of hydrogeology and engineering - We understand that site characteristics and their relationship to engineering design is key to success.

• An exit strategy or end use perspective - Working with our clients early in the process to establish project goals, we keep the end in mind.

Environmental Remediation Services

Building lifetime relationships with our clients and employees

Environmental Services Provided

Site Characterization/Hydrogeologic Investigation• Phase I environmental site assessments• Phase II site investigations• Direct-push technology • Soil boring and monitoring well installation• Aquifer testing• Groundwater modeling• File searches and record reviews• Environmental sample collection and analysis• Asbestos surveys and indoor air quality• Field analytical services• Data validation and management

Remedial Action• Underground storage tank closure• RCRA corrective action• CERCLA remedial alternatives analysis• Remedial design• Waste characterization/removal and disposal• In-situ remediation• Groundwater collection and treatment• Construction management and observation• Brownfields support

Environmental Planning and Compliance

• Environmental Impact Statements

• Facility permitting

• Storm Water Pollution Prevention (SWPP) Plans

• Spill Prevention, Control, and Countermeasures (SPCC) Plans

• National Pollution Elimination Discharge System (NPDES_ permitting

• Air quality monitoring and permitting

• New Source Performance Standards (NSPS) and National Emissions Standards for Hazardous Air Pollutants (NE-SHAP_ compliance services and reporting.

• Regulatory reporting

• Regulatory compliance audits

• Environmental Management Systems

Recent Cornerstone Experience

Cornerstone prides itself on establishing close and produc-tive relationships with its clients. A few recent examples of our enviromental services assignments include:

Nascolite Site PRP Group (NJ) – Groundwater inves-tigations and ground water modeling for the design of a groundwater containment remedy that includes ground-water pumping, on-site treatment and re-injection into the aquifer. Forensic analysis facilitated a reduced pumping scenario.

Tantalo Waste Disposal Site (NY) - Designed and pro-vided construction services for site closure at this inactive hazardous waste site, including an enhanced monitored natural attenuation groundwater remedy for chlorinated alkenes using injection of sodium lactate and a proprietary extended release compound.

Confidential Client (NJ) - Conducted investigations to define the extent of groundwater plume of hexavalent chromium, including the aquifer and sediment samplng and tidal studies. Conducted groundwater modeling to aid in the design of a downgradient groundwater containment remedy.

ET Environmental (NY) - Environmental services for closure of an undergound storage tank system and cehi-cle maintenance facility, including onsite monitoring, field screening, sampling, direction of product and contaminated water removal and prepaeration of Remedial Action Plan to address residual soil and groundwater impacts.

For more information, e-mail info@cornerstoneeg.com or visit www.cornerstoneeg.com

For more information:

Gary DiPippo or Rich Calogero (East) - (877) 294-9070Adam Larky (Central) - (877) 633-5520Craig Young (West) - (877) 633-5520

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