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Local Brownfield Success Story - Former Haywilk Galvanizing Facility

October 22, 2018

In September, EPA officials joined project members, LDEQ staff and local government officials, to recognize the successful completion of the Former Haywilk Galvanizing Facility, located in Gretna, LA.  Project details are below:

 

The 2.25-acre Gulf Coast Scrap & Salvage, Inc. site historically operated as Haywilk Galvanizing, a “hot dip” galvanizing facility, for over 60 years. Prior to the closure of the facility in 2005,  

two molten zinc pits and a hydrochloric acid pit for production of zinc-galvanized steel and iron were present on the property. In 2011, a Phase I Environmental Site Assessment (ESA) was completed prior to a property transaction to identify potential environmental concerns associated with the historic galvanizing activities (Leaaf Environmental, LLC, October 2011).

 

The potential for historic releases of heavy metals to soil and groundwater was identified in the Phase I ESA; therefore, the EPA Region 6’s Targeted Brownfields Assessment program funded the preparation of a Voluntary Remediation Investigation Work Plan and Quality Assurance Project Plan (QAPP) (G.E.C., Inc., 2012) and Phase II ESA (G.E.C., Inc., 2013) to further investigate the historic impacts to soil and groundwater. Based on the Phase II ESA, it was determined that an additional soil and groundwater investigation, including a geochemistry evaluation, was needed to provide

adequate remediation alternatives. Therefore, the property was enrolled in the Louisiana Department of Environmental Quality’s (LDEQ) Voluntary Remediation Program (VRP) in August 2014.

 

A VRP Remedial Investigation Plan Supplement (Groundwater Investigation Work Plan) was prepared in accordance with LDEQ’s Risk Evaluation / Corrective Action Program (RECAP) (Leaaf Environmental, LLC, December 2014, revised June 2015). The plan was approved by LDEQ in January 2015; however, it was not executed due to lack of funding.

Later in 2015, the New Orleans Regional Planning Commission (RPC) dedicated Targeted Brownfields Assessment grant funding to support the completion of a Phase II ESA to characterize, quantify and delineate zinc at the facility. Based on the results of the Phase II ESA, a Partial Voluntary Remedial Action Plan (PVRAP) was developed in compliance with LDEQ's RECAP and RPC's Quality Management Plan (QMP) to address elevated concentrations of zinc in the soil and groundwater at the site (Aerostar S.E.S., LLC, October 2016). The PVRAP was approved by LDEQ in July 2017.

 

In October 2017, 71.5 tons of zinc impacted soil were classified, excavated from the site, and disposed at a permitted landfill in accordance with the PVRAP. Confirmatory sampling of the excavated area was completed and reviewed using RECAP Management Options (MO)-1/2/3, and the area was backfilled with clean fill. Remedial activities also included the application of groundwater use restrictions to the property in a conveyance notice filed with the Jefferson Parish Clerk of Court. The Partial Voluntary Remedial Action Report (PVRAR) that documents the remedial activities completed at the facility is currently under review by LDEQ’s Remediation Division (Leaaf Environmental, LLC, December 2017).

 

The Former Haywilk Galvanizing site has been remediated in accordance with the approved PVRAP. Conditions at the facility have been restored to be protective of human health and the environment for the intended use of the property as a scrap yard. 

 

 

 

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