Refinery / Land Treatment Unit Operations

RCRA Land Treatment Unit Operations
Oklahoma Refinery SiteRefinery / Land Treatment Unit Operations

StanTech was hired by the client in 2001 to provide regulatory expertise and environmental consulting services for operation of the facility’s permitted Land Treatment Unit (LTU).  The LTU was closed in 2009; StanTech continues to provide consulting services for post-closure care of the LTU. While active, the LTU was subject to requirements specified in the Resource Conservation and Recovery Act (RCRA) Operations Permit for the facility.  The Oklahoma Department of Environmental Quality (ODEQ) is the regulatory authority for the LTU.   LTU operation and monitoring activities conducted and managed by StanTech included the following:

Semi-annual LTU Soil Core Sampling

  • Prepared Sampling and Analysis Plan (SAP)
  • Scheduling and coordination
  • Field services

Semi-annual LTU Soil Pore (Lysimeter) Liquid Sampling

  • Prepared Sampling and Analysis Plan (SAP)
  • Scheduling and coordination
  • Field services
  • Lysimeter Repairs

Semi-annual LTU Groundwater Sampling

  • Prepared Sampling and Analysis Plan (SAP)
  • Scheduling and coordination
  • Field services

Preparation of Monitoring Reports/Data Submittals

  • Quality Assurance/Quality Control (QA/QC) review of data
  • Coordinated with the laboratory
  • Coordinated with the ODEQ
  • Conducted statistical analyses for determination of statistically significant increases (SSIs)
  • Prepared SSI notifications and conducted re-sampling events

Preparation of Class 1, Class 2, and Class 3 Permit Modifications

  • Coordinated and prepared mailing list notifications
  • Scheduled and attended public meeting
  • Coordinated public notices

Nutrient Applications, Sampling, and Monitoring

  • Microbial growth enhancement

LTU and Groundwater Monitoring Well Maintenance

  • Well redevelopment, as needed
  • Well repairs, as needed
  • Coordinated fencing installation


Oklahoma City – Corporate Office
4300 N. Lincoln Blvd.
Oklahoma City, Oklahoma 73105-5106
(800) 725-8378
(405) 424-8378
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