Conway Scrap Yard Brownfield Cleanup

by Corey Light on

Information for this cleanup project will be updated regularly.

Project Description and Project Area

The City of Conway applied for and was awarded a Brownfield Cleanup Grant in the amount of $200,000, under the Cooperative Agreement Number BF-01F06101, by the U.S. Environmental Protection Agency (USEPA) for cleanup of the former Conway Scrap Metal Site at 1110 Spencer Street in Conway, AR. This site has also been enrolled in and accepted into the Arkansas Department of Environmental Quality (ADEQ) Brownfields program.

In keeping with the City’s Community Engagement Plan, this web page will serve as an online public repository of information pertaining to these cleanup activities, updates on activities on the site, location of the Public Repository for these records, and additional contact information.

The approximately 1.23 acre site located at 1110 Spencer Street is comprised of vacant land bordered by Markham Street to the east, Spencer St. to the west, Garland Street to the south and Willow Street to the north. The site was previously occupied by the Conway Scrap Metal Company, but was cleared of all buildings and debris in 2015, in preparation for the brownfield cleanup. Historically, the site was utilized for metal scraping services since the early 1900’s, with very little change in use.

Site Remediation Activities

Several investigations have been conducted at the project site, including Phase I and Phase II Environmental Site Assessments and a Comprehensive Site Assessment (CSA). The results of the CSA indicated that contamination in site soils occurred within the upper 2 feet of soil; however there were small areas that had contamination at depths of 4 feet below ground surface (bgs), and deeper. Soil data were compared to USEPA Regional Screening Levels (RSLs) for residential exposures. Chemicals of potential concern (COPCs) identified for soils include PCBs, TPH-DRO, polynuclear aromatic hydrocarbons (PAHs), bi(2-theylhexyl) phthalate (DEHP), and several metals. The CSA report identified PCB-1242, PCB-1248, PCB-1254, and PCB-1260, a mixture of PCBs, as the primary COPCs for site surface soils (i.e., 0” to 6” bgs). Maximum concentrations of nine PAHs were detected in surface soil above USEPA residential soil screening levels and are considered additional COPCs for the site. TPH-DRO was detected in surface soil samples at concentrations ranging from 3.7 mg/kg to 4,000 mg/kg. The maximum concentration of TPH-DRO in a single surface soil sample exceeded the ADEQ recommended screening value for soil. Thus, TPH-DRO is also a COPC for surface soil. Four metals in surface soil are also considered COPCs for the site: arsenic, cobalt, iron, and manganese.

The brownfield cleanup program scope of work includes preparation of engineering and EPA-required documents, implementation of the selected cleanup plan, and oversight and documentation of cleanup activities to ensure compliance with plans. The type of remediation was chosen following preparation and submittal of a draft Analysis of Brownfields Cleanup Alternatives to the EPA and public notification of the draft ABCA, which included an EPA-required 30 day public comment period.

The proposed remedial action includes excavation of the contaminated material and disposal at an offsite disposal facility. The chosen remediation option will be implemented to obtain the proposed cleanup goals for all three types of contaminants present at the site. Given the nature of the PCB contamination, and the required remediation procedures, the PCB remediation will dictate some of the methods and procedures used at the site.

FTN & Associates is the Engineering firm procured to provide site control through preparation of remedial actions, confirmation sampling, surveying, monitoring and documenting remedial activities, to be performed by Prewett Enterprises, Inc, dba. B & P Enterprises. FTN & Associates will also provide final report preparation according to the Brownfields Clean Up Plan approved by the Arkansas Department of Environmental Quality (ADEQ) and the US EPA. This cleanup plan will be protective of human health and the environment with regard to contaminate exposure and surface erosion of contaminated soil for this specific remediation area.

Transit Route of Trucks

The excavations of soil which are within the levels allowed for disposal at the local landfill, will be transported by Dump Truck via the following route:

  1. Site Entry point on Spencer Street at 1110 Spencer
  2. Thence North along Spencer St. to Mill Street
  3. Thence East on Mill St. to Markham Street
  4. Thence North on Markham St. to the Roundabout on Hwy 64/Harkrider
  5. Thence Following Hwy 64 to the Faulkner County Landfill located at 7 Old Morrilton Hwy, Conway AR, 72034
  6. Thence returning to the 1110 Spencer St. Entrance via the same route in reverse.

All trucks are marked “B & P Enterprises”. Please report any concerns of trucking activity to the contact information provided on this page.




Documents

Cleanup Specifications for Conway Scrap Metal Remediation Project

Activity Log

7/11/2017 – Excavation work has begun on site. Areas have been tested containing acceptable levels of contaminants to be transported to the Conway landfill. Ongoing testing of gridded areas will be done to identify all contaminates are removed from the identified areas. This testing includes identification of any increase of contaminate levels that would require transport to an appropriate facility for disposal.