Services

Underground Storage Tank Closures
Phase I and Phase II Environmental Site Assessments
Corrective Action Plan
Remediation Services
Mobile Multi-Phase Extraction (MPE)
Tank and Line Testing Services/ Compliance Audits
Tank Cleaning

  

Underground Storage Tank Closure Management, including all necessary sampling and reporting, as required by the Underground Storage Tank Management Program.

Phase I Assessments for property transactions; consists of a database search and site visit to determine the potential contaminant impact at the site.

Phase II Assessments include drilling and sampling of soil and groundwater at a site known to have the potential for subsurface environmental impairment.

Corrective Action Plan – Parts A and B are prepared, if necessary, including contaminant characterization, site assessment, contamination delineation, risk assessment, pilot testing, and remedial alternative evaluation.

Remediation System pilot testing, evaluation, selection, design, permitting, installation, operations and maintenance, progress monitoring, decommissioning and site restoration.

Mobile Multi – Phase Extraction (MPE) for free product abatement, reduction of dissolved phase contamination and pilot testing for MPE/Soil Vapor Extraction (SVE).

Site Decommission / Abandonment. Upon receipt of a No Further Action Required (NFAR) status from the applicable regulatory authority, removal of all remediation equipment and restoration of the property is completed to the satisfaction of the property owner.

Hazardous Waste Contamination Site Assessment/Investigations (RCRA, CERCLA, HSRA).  Investigation and remediation of sites with subsurface contamination regulated by these authorities. 

Tank testing,  line testing, cathodic protection testing, fueling system compliance testing, Stage I Enhanced Vapor Recovery (EVR) certification, Stage II certification and compliance are all completed to comply with the applicable Underground Storage Tank Management Program guidelines.

Tank cleaning including ethanol fuel blend storage tank pre-conversion cleaning and diesel fuel treatment and tank cleaning.

Fuel Quality Sampling can also include long term fuel storage sampling programs.

GOS Provides Oversight to the Following Services and Activities

• Emergency Response Activities
• Compliance Audits/ Inspections