Environmental Engineering Service

GROUND can provide:

• EPA All Appropriate Inquiry (AAI)
• Phase I Environmental Site Assessments
• Phase II/III Environmental Site Assessments
• Environmental Sampling Programs
• Subsurface Vapor Intrusion Assessments
• Construction Dewatering and Discharge Monitoring and Sampling
• Spill Prevention, Control and Countermeasure Plans (SPCC Plans)
• Soil Stockpile/Borrow Area Evaluations
• Waste Material Characterization and Management
• Hazardous Substance Control Programs

EPA All Appropriate Inquiry (AAI)
Federal regulation (40 CFR Part 312) useful for individuals and business enterprises seeking to qualify for CERCLA (Comprehensive Environmental Response, Compensation and Liability Act) liability protection.

Phase I Environmental Site Assessments
Performed in order for a User to obtain protection from potential liability under CERCLA as an innocent landowner, a contiguous property owner, or a bona fide prospective purchaser, utilizing ASTM Standard Practice E 1527-05. This standard practice fulfills the statutory requirements of AAI. Phase I ESAs are most commonly performed during the Due Diligence period.

Phase II/III Environmental Site Assessments
Environmental Sampling Programs
Phase II and Phase III Site Assessments are commonly performed as a result of recommendations provided in a previously conducted Phase I ESA. A Phase II often involves sampling soil, groundwater, and/or building materials to analyze for various constituents regarding contamination. Phase III investigations aim to delineate the physical extents and limits of contamination based on recommendations made in Phase II assessments, and often include remediation plans. GROUND can also provide various water and soil investigations for individual client needs.

Subsurface Vapor Intrusion Assessments
Vapor intrusion can potentially create significant liability for owners and prospective purchasers and have material impact on property value. GROUND can perform subsurface vapor intrusion assessments utilizing ASTM E 2600-08 to identify if a Potential Vapor Intrusion Condition (PVIC) exists, assess whether the PVIC is potentially threatening to human health, and identify mitigation alternatives.

Construction Dewatering and Discharge Monitoring and Sampling
Water sampling and analysis sanctioned by the Clean Water Act and the National Pollutant Discharge Elimination System (NPDES) permit program which controls water pollution by regulating point sources that discharge pollutants into waters of the United States.

Spill Prevention, Control and Countermeasure Plans (SPCC)
A written plan to prevent any discharge of oil into or upon navigable waters of the United States or adjoining shorelines. Commonly required for facilities with above-ground storage tanks.

Soil Stockpile/Borrow Area Evaluations
Required by Colorado Department of Transportation’s (CDOT’s) Specification 106.02 (b)Contractor Source when desiring to utilize an “unapproved” source for embankment and subgrades often necessary when importing fill materials of unknown origin to a construction site.

Waste Material Characterization and Management
Hazardous Substance Control Programs
Commonly performed when acquiring property in an “as is” condition with known or unknown chemicals or materials. Also performed during redevelopments or remediation of commercial and industrial facilities.