At the Mid-Way Commercial NHIW Processing and Class I Disposal Well facility, liquid wastes are analyzed and undergo an approval process before they can be sent to the facility. Once approved, liquid wastes received from clients are analyzed again on-site, accepted and stored in a combination of above-ground tanks, in-ground tanks or a geomembrane lined basin. All tanks at this facility are within a secondary containment system to prevent release to the environment in the event of a catastrophic failure. After analysis, processing and filtering, solid removed from the liquids are dewatered and disposed at a permitted landfill facility while the liquid wastes are disposed through the on-site permitted Class I injection well. The liquid wastes are injected over 1 mile below the ground level into the Arbuckle Formation. The Arbuckle Formation is a porous sandstone formation that is overlain by numerous major impermeable confining layers which prevent migration of wastes towards the surface thereby posing an extremely low risk to people, animals, plants and drinking water aquifers.
The Mid-Way facility implements the latest technologies to provide liquid storage, transfer and underground injection. Components of the processing facility and the injection well are continuously monitored by computer systems and facility personnel to ensure the safest operation and compliance with the facility permits and all local, state and federal USEPA requirements. In the event that the system components deviate from the established safety protocols or permit requirements, automatic shutdown procedures are initiated until the situation can be accessed. In addition to these automatic safeguards and routine inspections, the facility performs regular groundwater monitoring to ensure that drinking water sources are not contaminated and annual testing is performed to confirm the mechanical integrity of the well and formation conditions.