KEMRON was contracted to provide environmental consulting services at Providence Park following the discovery of more than two hundred 2 gallon to 55 gallon drums and containers on the park premises located in Alpharetta, GA. The park was frequented by local residents who utilized the park’s hiking trails, rock climbing course, high ropes course, fishing lake and amphitheatre. The drums were reportedly dumped and buried at the park prior to 1970 after the property was utilized as a county road aggregate quarry and maintenance facility.
KEMRON was contracted to provide environmental consulting services at Providence Park following the discovery of more than two hundred 2 gallon to 55 gallon drums and containers on the park premises located in Alpharetta, GA. The park was frequented by local residents who utilized the park’s hiking trails, rock climbing course, high ropes course, fishing lake and amphitheatre. The drums were reportedly dumped and buried at the park prior to 1970 after the property was utilized as a county road aggregate quarry and maintenance facility.
KEMRON conducted an interim removal action by removing and disposing of several dozen of the drums and containers visible at the surface. KEMRON subsequently conducted a Site Investigation (SI) which included collecting superficial soil samples, sampling lake sediment, installing six monitoring wells and conducting a receptor survey. Numerous compounds were detected in the soil and groundwater samples including lead, tetrachloroethene, trichloroethene, vinyl chloride, benzene, xylenes, phenols, PCBs, pesticides and herbicides. More than forty private drinking water supplies were identified within a one mile radius of the site during the receptor survey. An electro-magnetic survey was conducted to identify potential buried debris and assess potential groundwater contaminant plumes. KEMRON was also an active participant in a town hall meeting organized to inform the community about site activities.
Following the initial SI, KEMRON was contracted to complete a Compliance Status Report (CSR) for submittal to the Georgia Environmental Protection Division (GAEPD). An expanded investigation was initiated to provide a complete horizontal and vertical delineation of the impact to soil and groundwater. Thirty additional soil borings and ten additional monitoring wells, including two Type III vertical delineation wells were installed. Drilling activities required the use of an ATV rig capable of installing double cased wells into rock. A track mounted remote control GeoProbe unit was utilized to complete the soil assessment.
KEMRON prepared the CSR which outlined the delineation activities, identified potential exposure routes, and determined the Site Specific Risk Reduction Standards (RRSs) for the site using RAGS equations. A statistical analysis to determine background metals concentrations in soil was also conducted as part of the CSR. Following the approval of the CSR, KEMRON conducted soil remediation activities at the site. Approximately 8,331 tons of impacted soil were removed from the site and disposed of under manifest at the Waste Management landfill in Ball Ground, Georgia. Confirmatory soil samples indicated that the impacted soil at the site was successfully remediated to below respective RRSs.
Details pertaining to this removal action were summarized in a Soil Excavation and Groundwater Sampling Summary Report. The removal activities required that KEMRON write an Erosion,
Sedimentation, and Pollution Control Plan that was subsequently approved by the Fulton County Soil Erosion and Sedimentation Control Division. The removal activities also required that KEMRON obtain an encroachment buffer permit from the GAEPD prior to remediating areas within a state water embankment.
KEMRON won a second contract for the treatment of contaminated groundwater which included the installation of recovery wells and a groundwater treatment system. These activities involved clearing of trees, trenching, grading, installation of an infiltration gallery, and vegetative erosion control. KEMRON also conducted additional park restoration activities such as: clearing and disposing of fallen trees and debris, modified bank stabilization, replacing damaged fencing, improving the post excavation soil grade, addressing park security issues, and implementing erosion control actions including GADOT Class C silt fencing, rock check dams, and streambank stabilization using live stake permanent vegetation. Ongoing work at Providence Park includes the operation and maintenance of the treatment system and routine monitoring.
KEMRON holds an ID/IQ contract with the Georgia Environmental Protection Division (GAEPD) for high priority UST sites which required site investigation, corrective action plan (CAP) preparation, emergency response and remedial system design, installation and O & M. KEMRON was assigned sites under the GUST contract at varying phases ranging from the initial release notification stage to the preparation, design, and implementation of a remedial action plan. KEMRON successfully completed work at sites from the initial site assessment to complex active remediation. Under this contract, KEMRON executed several hundred task orders (TO) Many of the task orders were fixed price and/or performance based contracts (PBC).
KEMRON personnel established a reputation for obtaining No Further Action status at petroleum release sites using risk based corrective action in the most timely and cost effective manner. KEMRON obtained well over 350 No Further Action designations from the Georgia EPD USTMP. One of the key components of the GUST contract was performing third party report reviews. KEMRON
was tasked with reviewing any of the following reports: UST closure reports, corrective action plans, remedial action plans, progress reports, No Further Action Requests, and other deliverables to the EPDUSTMP. As a prerequisite to conducting the file reviews, KEMRON personnel have demonstrated extensive knowledge of the Georgia UST Act, the State of Georgia Rules for UST Management, the Guidelines for Corrective Action Plan-Part A and Part B, the UST Closure Guidelines, and 40 CFR Part 280. KEMRON provided EPD USTMP with a technical memorandum detailing the adequacy of the
deliverable that has been reviewed citing specific deficiencies noted during the review.
The following represent project experience under this contract:
Circle M Site. KEMRON, operating under a fixed price, performance based contract of $1 million, completed the investigation, design, remedial system installation and final cleanup of this environmentally and politically complex site on time and with a minor budget variance. This is remarkable in light of the fact that five previously unidentified plumes were identified and remediated during cleanup. In fact, one of the plumes, from an adjacent site, was eligible for an additional $1 million in funding. This site was characterized by a substantial gasoline free product plume and thick smear zone resulting from multiple UST releases. Water supply wells were within the radii of concern, but none were initially considered to be hydraulically connected to the dissolved phase plume. However, an updated receptor survey identified a recently refurbished municipal water supply. The presence of this well along with an extensive free product smear zone raised concerns about vertical migration of dissolved BTEX into the underlying bedrock aquifer. Investigation activities included the installation and sampling of 20 groundwater monitoring wells and soil borings.
KEMRON conducted risk assessment services including fate and transport modeling, aquifer characterization and development of a saprolite / bedrock model allowing calculation of area-weighted
ACL’s protective of the bedrock aquifer KEMRON demonstrated that the plume was effected by the public well pumping cycles. The high risk to the nearby receptor necessitated immediate preparation of the CAP. All remedial cleanup goals were achieved and the site has been issued an NFA.
Roswell Road Site Remediation. KEMRON, operating under a design / build PBC TO, designed a high efficiency dual phased vacuum extraction system for this site. The cleanup is complicated by the size and complexity of the plume, which extends below an adjacent business and two large residential multi-family housing units. The plume of petroleum hydrocarbons was also fully mixed with a plume of chlorinated solvents emanating from an adjacent property. KEMRON’s performance based design incorporates both plumes and required system upgrades and modifications to meet chemical treatment requirements.
KEMRON Environmental Services, Inc. (KEMRON) assisted the City of Nitro, West Virginia with a $200,000 EPA Petroleum Brownfields Assessment Grant and $200,000 EPA Hazardous Brownfields Assessment Grant projects in and around the City of Nitro, West Virginia. These Brownfields Assessment Grant projects involved inventory and prioritization of hazardous and petroleum sites in and around the City of Nitro. The site inventory and prioritization processes have been completed and 54 hazardous sites and 54 petroleum sites were identified in and around the City of Nitro.
We have eliminated all ineligible petroleum and hazardous sites identified through the site inventory process due to various factors including CERCLIS listing, NPL Listing, Outside Survey Area, Can Not Locate/Not Valid Site Location, and Priority 1 WVDEP Petroleum Site (High Priority). Property Approval Questionnaires have been submitted to EPA Region III for one potentially eligible petroleum site and three (potentially eligible hazardous sites.
Following receipt of executed Access Agreements, a Phase I Environmental Site Assessment (ESA) will be conducted on each site. Where warranted, Phase II ESAs will be conducted based upon the Phase I ESA findings and redevelopment potential. Depending upon the remaining project budgets, the Remedial Planning component of process will include preparation of Remedial Action Workplans and VRP Applications, where warranted.
SGA is conducting redevelopment planning activities for the City of Nitro Petroleum and Hazardous Brownfields Assessment Grant projects. The public involvement and redevelopment planning process for this project is well underway. A primary focus of the public involvement activities to-date includes a day long public workshop. The outcome of this highly participatory meeting was the identification of key redevelopment goals and objectives, a schematic redevelopment strategy for the entire Brownfields study area and a list of prioritized sites and infrastructure elements to focus ongoing planning and environmental investigation efforts. Current work is focused upon identifying site-specific design criteria to ensure that as individual site development projects are advanced, they are developed in a functional and cohesive manner consistent with the overall redevelopment master plan.
This project includes evaluating site specific engineering characteristics unique to this major riverfront post-industrial Brownfields site with significant underground contamination. The work also includes preparing tailored site development standards for engineering elements such as stormwater management and post- remediation earthwork treatments. In addition, targeted public infrastructure and community directed land use plans are being studied in greater detail to best position the City for funding to support final design, approval and construction efforts, since these investments are critical to attract and leverage private development investments.
