Demolition_banner
Our Work

Surface Impoundment Closure

Valero Refinery
Ardmore, OK


SEMS was contracted to handle the closure of several surface impoundments cells located within the Polishing Lagoon System.

Surface Impoundment Closure Services Provided:

  • Treatment of approximately 6,000 cyds of in-situ sludge to reduce the TPH level to below 10,000 ppm
  • Importing and placement of 60,000 cyds of backfill materials
  • Construction of a 5-acre parking area