Client: Various
Location: Petroleum Refineries in Delaware, Kansas, Oklahoma, and Wyoming
Project Overview: Trihydro has been involved in every aspect of Subpart QQQ programs at petroleum refineries - from initial investigations and applicability determinations to the development and management of compliance programs. Trihydro has been involved in such programs at petroleum refineries in Delaware, Kansas, Oklahoma, and Wyoming . In many cases, Trihydro developed compliance programs from the ground up where no programs existed before. Trihydro's activities involving Subpart QQQ have included:

• Initial review and investigation of records, wastewater gathering and treatment systems, and emissions estimations in order to define the extent of Subpart QQQ applicability in a refinery;
• Field inspections to verify locations of and flows within wastewater treatment and conveyance systems;
• Identifying affected components, regulatory applicability of components, and marking components on drawings for reference;
• Conducting monthly and semiannual inspections of affected components, as well as undertaking corrective action when necessary;
• Completing and submitting necessary periodic reports; and
• Developing comprehensive compliance programs.

Client: San Isabel National Forest Service
Location: Leadville, Colorado
Project Overview: Trihydro performed a wastewater treatment study for the National Forest Service on the east end of Turquoise Lake in the Colorado Rockies near Leadville, Colorado. The system was comprised of a sewerage system for a recreational area with day use, overnight camping, and boat ramps.

The project involved assessing the existing system condition and expected remaining service life of the infrastructure connected to the system. This included public restroom facilities, five miles of 6 and 8 inch Vitrified Clay Pipe mains, a sewage treatment plant, and a polishing pond. After the assessment was completed, alternatives for simplifying the treatment process, extending the life of the collection system, reduction of maintenance cost, and liabilities were identified.

Alternatives for short and long term needs were developed and are presently being considered. The treatment system, while capable of accepting and treating between 80,000 and 90,000 gallons per day was originally oversized for the typical 3,000 to 4,000 gallons per day and a maximum of approximately 25,000 gallons for peak days.