Status

September 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, United States Avenue South, and 7 Foster Avenue subareas. Restoration activities continue on areas within the 7 and 10 Foster Avenue parcels. The Borough is proceeding with its redevelopment plans for the 6 East Clementon parcel.

• Pre-Design Investigations (PDI) continue on 1 Foster Avenue and Upper Hilliards Creek, which extends from Foster Avenue down to West Clementon Road in Gibbsboro.  The PDI on 2/4 Foster Avenue is nearly complete and the unit is transitioning into the Remedial Design (RD) phase. 
• Sherwin-Williams has implemented a Soil Vapor Extraction (SVE) pilot study on 1 Foster Avenue. The SVE system will operate 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.  

The soil management pad on the 2/4 Foster Avenue parcels is being dismantled, and construction equipment will be removed over the next few months. Additional remediation work is expected to begin in the latter half of 2027 once approvals and permits for the next subareas are obtained.

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 this fall and again next spring. 
• The Remedial Design for the Bridgewood Lake remediation is underway and the 90% design documents are due to EPA on October 7, 2026. Additional design and permitting is required prior to initiation of remediation work. 

• Sherwin-Williams has initiated the PDI along Hilliards Creek extending from West Clementon Road to Hilliards Road in Gibbsboro. Soil sampling for this extensive investigation began in August and is expected to continue through early 2027. 
• The Remedial Design for an accelerated dredge of Kirkwood Lake was completed and approved by EPA. Once permits are approved, contractor selection, pre-dredge mobilization and staging are required. 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 have finalized the Scope of Work and the modifications to the Consent Decree will go out to public comment in the near future. 

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.

• Construction activities are underway and residential connections are pending.  
• 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.