Status

June 2026 Quarterly Update

Residential Properties Remediation – Complete

Soil remediation and restoration activities are complete on all properties under the Residential unit.  Monitoring of restored vegetation in regulated areas will be completed in 2026. Following submittal of Sherwin-Williams final annual report, NJDEP is expected to close out all residential land use permits in 2027.

Route 561 Dump Site – Soils/Sediments Complete

Remediation and restoration activities are complete on all properties associated with the Route 561 Dump Site unit. Sherwin-Williams will continue to monitor the restoration of vegetation in regulated areas as required under the NJDEP land use permit. Groundwater associated with this unit will continue to be monitored. 

The United States Avenue Burn Site – Soils/Sediments Complete

Remediation and restoration activities are complete on all areas under the United States Avenue Burn Site unit. Sherwin-Williams will continue to monitor the restoration of vegetation in regulated areas as required under the NJDEP land use permit, as well as perform post-remediation groundwater and surface water monitoring. 

The Former Manufacturing Plant (FMP) Soils – Phased Remediation Underway

The EPA-issued Record of Decision (ROD) for the FMP unit outlines three distinct remedial approaches to address contaminated soils at the FMP, sediments in a portion of Hilliards Creek adjacent to the FMP, as well as an area of light non-aqueous phase liquid (LNAPL) contamination located along the eastern side of the FMP. The FMP soils work has been divided into several subareas to allow for phasing of activities.  

• Remediation is complete on Lot 4, United States Avenue North, 6 East Clementon/10 Foster Avenue, and the United States Avenue South subareas. Restoration continues on certain areas within the U.S. Avenue South and 10 Foster Avenue parcels.
• Remediation activities are underway on the 7 Foster Avenue subarea and are expected to continue through September 2026.
• Pre-Design Investigations (PDI) continue on the subunits at 1 Foster Avenue and Upper Hilliards Creek, which extends from Foster Avenue down to West Clementon Road in Gibbsboro.   
• Sherwin-Williams has implemented a Soil Vapor Extraction (SVE) pilot study on 1 Foster Avenue. The SVE system will operate up to six months, potentially through October 2026. The results of this pilot study will provide important information for the design of the full-scale LNAPL bioremediation program and the remedial design to address contaminated soils on 1 Foster Avenue.  

Waterbodies Unit – Phased Remediation Underway

Contaminated sediments and floodplain soils in Silver Lake, Bridgewood Lake, Kirkwood Lake and Hilliards Creek will be addressed in a phased approach. Under the EPA-approved remedy, remediation will occur on the upstream Silver and Bridgewood lakes, followed by the Hilliards Creek floodplain and Kirkwood Lake.

• The remediation of Silver Lake in Gibbsboro is complete. The first phase of fish restocking took place on April 28, 2026. Additional restocking efforts will occur over the next year. The disturbed portions of the wooden boardwalk at the base of the lake are being repaired prior to reopening it to the public.     
• Pre-design investigations (PDI) of Bridgewood Lake are complete. Following approval of the PDI Evaluation Report by EPA, the remedial design phase will begin.
• Sherwin-Williams has submitted a revised PDI Work Plan to EPA for soil sampling along Hilliards Creek extending from West Clementon Road to Hilliards Road in Gibbsboro. Soil sampling is expected to begin this summer following approval of the Work Plan. Soil sampling along this corridor will take approximately six (6) months to complete.
• The Remedial Design for an accelerated dredge of Kirkwood Lake was completed and approved by EPA, however, the NJDEP permits necessary for accelerating the dredge still have not been approved. Once permits are approved, contractor selection, pre-dredge mobilization and staging are expected to take one year or more. Sherwin-Williams and Camden County continue to evaluate the potential for accelerating the dredging of Kirkwood Lake before or concurrently with the dredging of upstream areas of the Waterbodies unit. At this time, there is no agreement or schedule in place for accelerating the dredging.

Former Manufacturing Plant Groundwater – Remedy Decision Phase

EPA released a Record of Decision finalizing the remedy for groundwater within the FMP on September 26, 2025. EPA and Sherwin-Williams are in the process of finalizing a Scope of Work and will subsequently initiate modifications to the Consent Decree. 

Sherwin-Williams will begin implementing some of the pre-design groundwater sampling activities this summer. 

United States Avenue Sanitary Sewer Extension

Sherwin-Williams is installing sanitary sewers adjacent to the Former Manufacturing Plant and will connect properties on United States Avenue and Foster Avenue currently unserved by sanitary sewers.

• Utility connections and additional system work will be performed this spring, followed by connections to the individual properties.  
• Additional short-term road and lane closures along Foster Avenue, United States Avenue and Berlin Road will be required for the final phases of construction, sewer connections, and road repaving.