Kent County, Wyoming, Electro Chemical Finishing - Remico

Updated: April 20, 2020

Electro Chemical Finishing Company Remico Aerial MapBackground

This site is located at 2610 Remico Street SW. The Electro Chemical Finishing (ECF) facility had a release sometime before December 11, 2014, when a discharge of plating wastewater to Roys Creek was observed coming from a stormwater outfall. The origin of the release appeared to be a breach in the floor where plating water entered the ground, flowed beneath the concrete floor to a point where a roof drain elbow and pipe were separated, and into the storm sewer system.

Following the repair and resolution of this breach, ECF conducted an investigation to determine the extent of the plating wastewater impact. A plume of contaminants other than PFAS was discovered extending to the north. ECF installed a groundwater extraction system for on-site treatment and discharge to the sanitary sewer. As part of EGLE’s Industrial Pretreatment Program (IPP), the City of Wyoming sampled ECF’s wastewater. Due to the results of the wastewater testing, and the facility’s history as a plater, EGLE requested ECF to create a workplan and begin sampling.

The Grand River is located about 1.8 miles downgradient from the site. There is a small private pond about 600 feet northeast of the groundwater extraction well on the property. Groundwater flow is primarily to the north, parallel toRoys Creek.

Recent Accomplishments

  • On March 19, 2020, EGLE received a status update report containing the results and findings of additional groundwater sampling conducted in December 2019.
  • On March 30, 2020, EGLE hosted a conference call between ECF stakeholders and the environmental consultant to conceptualize a work plan for the additional work needed to delineate the extent of PFAS contamination.

Next Steps

  • EGLE will continue to work with ECF as they complete investigation and delineation of the PFAS plume.
  • EGLE’s Superfund group will perform PFAS testing of groundwater at the Spartan Chemical facility prior to planned remediation activities at that location.  This information will be used in conjunction with additional information gathered by ECF in the coming months to support the expansion of a groundwater use ordinance in the area following appropriate citizen engagement.
  • The next sampling event is scheduled for Spring 2020.
  • ECF will expand their existing wastewater treatment facility to remove PFAS and increase treatment capacity to provide additional groundwater extraction and remediation capacity.

Residential Well Testing/Alternate Water Information

Upcoming Community Engagement

  • None scheduled at this time.
Sampling: PFOS and PFOA Only

Type of Sample

Date Sampled

# of Samples

# of Results Received

# of Non-detects

# Between Non-detect and standard*

# > Standard

Groundwater

Nov 2, 2018 - Dec 3, 2019 17 17 0 5 12

Cumulative

  17 17 0 5 12

*Groundwater results are compared to EGLE Part 201 Criteria of 70 ppt PFOS+PFOA.

Sampling notes

  • Other PFAS analytes were detected in samples. There are no federal or state standards for these analytes.

Historical Timeline

  • On February 13, 2019, ECF’s environmental consultant collected one sample from the on-site purge well system (a groundwater treatment system) at the northeastern portion of the property.
  • On March 8, 2019, EGLE was informed of the sampling results. The result was 2,000.33 ppt PFOS+PFOA and 4,364.63 ppt Total Tested PFAS.
  • On April 16, 2019, EGLE and ECF reached an agreement on a multi-step work plan to assess and investigate PFAS impacts to groundwater.
  • On May 16, 2019, EGLE was provided a Status Update Report which included the results of the November 2, 2018 PFAS sampling conducted on groundwater collected from the extraction well.
  • Groundwater samples (including supply wells) were collected on April 17-18, 2019 and presented to EGLE in a report dated May 29, 2019.  Results demonstrated that all eight groundwater monitoring wells and three water supply wells contained detectable concentrations of PFAS; an area of groundwater impacted with PFAS was demonstrated in the same area as the previously established metals plume but additional delineation is needed.  Seven of the monitoring wells and one supply well contained PFOA+PFOS at concentrations greater than 70 ppt (this supply well is not in use and the location was connected to city water in 2017, the other supply wells are not used for drinking). 
  • ECF continues to work with EGLE to investigate the presence of PFAS in the subsurface in accordance with Part 201 concurrent with the investigation and monitoring of previously-identified contaminants in the groundwater.
  • ECF’s consultant completed a records investigation of the water supply for all parcels downgradient in the direction of the plume migration and determined that all parcels are on Wyoming municipal water or have no water supply. There are no known private wells downgradient of ECF other than the ones already sampled.
  • ECF’s efforts have been focused on PFAS minimization in their effluent to Wyoming POTW.  Concurrently they are investigating alternative wastewater treatment processes to replace or supplement their existing batch treatment process to capture PFAS from their effluent and increase their overall throughput capacity for expanded groundwater remediation.
  • ECF and its consultant are working through a plan to implement an areawide groundwater use restriction to address the chromium, nickel, and PFAS impacted area.
  • An additional round of groundwater samples was collected in December 2019; results are expected in February 2020.