VILLAGE APPROVES PLAN TO INITIATE SHUTDOWN OF GROUNDWATER PUMPING AND TREATMENT SYSTEM AT BP AMOCO STATION ALONG STATE HIGHWAY 165 NEAR I-94
On Monday, May 2, 2016, the Pleasant Prairie Village Board approved a plan for Vidhya Corporation, owners of a BP Amoco gas station along State Highway 165, to shutdown a groundwater pumping and treatment system. An engineering and environmental firm has outlined a strategy to shutdown the system, which has been operating within the limits of a Wisconsin Pollutant Discharge Elimination System (WPDES) permit for the past two years.
During early 2012, the BP Amoco station located at 10477 120th Avenue was ordered to stop an ongoing illicit discharge of petroleum products into a drainage ditch adjacent to the property. Station owners were also ordered to develop and implement a plan to remove the contamination from the surrounding soils and groundwater. During September of 2012, station owners presented an acceptable plan to stop the illicit discharge, remediate the contamination, and monitor the surrounding soils and groundwater. The system has been operational since April of 2013.
Due to the site remediation completed to date and testing results, engineers have proposed to shut down the pumping and treatment system, while continuing to monitor the drainage ditch, sumps and select monitoring wells frequently for petroleum discharge. Both the Village and the Wisconsin Department of Natural Resources (WDNR) must approve the shutdown in order for it to take place.
If during the course of one year, any petroleum product is observed in the ditch, sumps, or monitoring wells, steps will be taken to remove the petroleum, the WDNR and the Village would be notified, and the treatment system would be restarted. If, after one year, there is no increase in groundwater contamination and the ditch remains free of petroleum, the site could be reviewed for a closure request, with no further pumping, treatment or monitoring. Site closure is determined by a WDNR Closure Committee who reviews the case.