Kent County, Wyoming, Electro Chemical Finishing - Remico

Updated: December 11, 2019

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 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 fluid entered. Following the repair, ECF conducted an investigation and installed a groundwater extraction system for on-site treatment and discharge to the sanitary sewer. Sampling conducted by the city identified PFAS in the wastewater so the Michigan Department of Environment, Great Lakes, and Energy (EGLE) requested that ECF create a workplan to assess a potential groundwater plume and begin sampling.

Recent Accomplishments

  • 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.

Next Steps

  • ECF’s consultant will send out a confirmation letter to all downgradient property owners to further confirm no groundwater use, following EGLE protocols, in preparation for seeking a groundwater use restriction from Wyoming.
  • EGLE will continue to work with ECF as they complete investigation and delineation of the PFAS plume.
  • The next sampling event is scheduled for early-Fall 2019.

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 - Apr 18, 2019 13 13 0 3 10

Cumulative

  13 13 0 3 10

*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.

Electro Chemical Finishing - Remico Historical Timeline

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.

  • 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.