Waste Programs Division: Hazardous Waste Management: World Resources Company (WRC), Hazardous Waste Treatment and Storage Facility

World Resources Company (WRC), Hazardous Waste Treatment and Storage Facility

EPA ID No: AZD 980 735 500

Facility History and Description

World Resources Company is located at 8113 West Sherman Street, Tolleson, Arizona. The facility is an existing hazardous waste treatment and storage facility that receives a variety of hazardous and non-hazardous wastes. These materials are then segregated, consolidated, treated and shipped for reclamation or recycling, further treatment or disposal. The facility is located on the east side of South 83rd Avenue along the south side of West Sherman Street, north of West Buckeye Road, and is approximately 10 acres in size.

World Resources Company’s Tolleson facility has operated under a Consent Agreement and Consent Order by the Environmental Protection Agency (EPA) since 1996 to ensure compliance with applicable interim status hazardous waste regulations under Arizona Administrative Code (A.A.C.) Title 18, Chapter 8 (40 Code of Federal Regulations (CFR) §265).

Waste Management

The WRC facility receives recyclable hazardous wastewater treatment sludge and filter media produced primarily from electroplating and metal finishing operations. Incoming wastes are segregated, treated, consolidated, blended and prepared for shipment to primary smelters and metal extraction and refining companies. Characteristic hazardous waste toxic metals and listed hazardous wastes, F006 and F019, may be present in wastes accepted. Waste management activities performed at WRC include:

  • Hazardous Waste Management Unit (HWMU): This unit is used for drying, blending and storage of hazardous waste. Hazardous waste is dried using passive solar drying during the seasons of the year when it can be accomplished effectively based on dew point. The waste is blended to prepare metal concentrates as specified by the end users (e.g., smelters). The HWMU is an approximately 300-foot by 570-foot concrete pad with a containment berm around the perimeter and fabric mesh canopy overhead. The fabric mesh canopy is supported by steel columns and is intended to reduce airborne dust emissions from the HWMU. Below the concrete pad is a partial liner designed to reduce the movement of any leachate that migrates below the concrete containment. WRC does not accept free-liquid hazardous wastes and has a concrete maintenance and management program to prevent hazardous waste releases to the subsurface and groundwater.

    WRC operates and maintains a run-on control system to prevent precipitation from flowing on to the HWMU. The run-off management system includes the HWMU containment berm that provides sufficient capacity for a 25-year, 24-hour storm. Within the bermed HWMU are stormwater pick-up points where precipitation is pumped to the facility’s onsite waste water treatment unit (WWTU). A contingency includes provisions for acquiring additional stormwater handling equipment and storage units to remove standing water from the HWMU.

    The other treatment units and a Container Storage and Treatment Unit are located on the HWMU.

  • Thermal Concentrating Unit (TCU): The TCU is used for thermal drying of hazardous waste. It is located on the northwest corner of the HWMU. The TCU includes a baghouse filter and secondary filtration unit to control air emissions.

  • Mechanical Shredder/Size Reducer Unit (MSU): The MSU shreds debris from the incoming loads or from facility-generated debris that may be blended into the hazardous waste. It is located on the northwest corner of the HWMU, east of the TCU. It has a filter to control air emissions with at least a 90% control efficiency.

  • Mechanical Blender Unit: The Mechanical Blender is used for blending hazardous waste. It is located on the northwest corner of the HWMU, east of the TCU. It has a filter to control air emissions.

  • Hazardous Debris Container Treatment Unit: This unit decontaminates hazardous equipment and debris that is not shreddable for disposal as non-hazardous waste or scrap. In the event the debris cannot be sufficiently decontaminated, it is disposed of as hazardous waste.

  • Hazardous Waste Container Storage Area: Up to 50 cubic yards of hazardous waste and hazardous debris may be stored in containers. These containers may be located anywhere on the HWMU.

There are no hazardous waste landfills, surface impoundments, or land treatment units at the facility.

See Also:

Draft Hazardous Waste Management Act Facility Permit

The public notice for the draft Permit was published on October 12, 2014. The public comment ran from October 12, 2014, through November 28, 2014.

Contents of the Draft Permit

Draft Hazardous Waste Management Act Facility Permit

Draft Permit Attachments:

  • Attachment 1 contains a detailed description of the WRC facility.
  • Attachment 2 contains the variance requirements.
  • Attachment 3 contains the material handling, treatment and records requirements.
  • Attachment 4 contains a description of the miscellaneous units.
  • Attachment 5 contains a description of the waste characteristics.
  • Attachment 6 contains a description of the inspection process.
  • Attachment 7 contains a description of procedures to prevent hazards.
  • Attachment 8 contains a description of the facility training plan.
  • Attachment 9 contains a description of the groundwater detection monitoring program.
  • Attachment 10 contains the Contingency Plan.
  • Attachment 11 contains the Closure Plan.
  • Attachment 12 contains the financial assurance documentation.
  • Attachment 13 contains the closure cost estimate.
  • Attachment 14 will contain the Ambient Air Monitoring Program.
  • Attachment 15 contains the Concrete Management Program.
  • Attachment 16 contains the EPA variance.
  • Attachment 17 contains the Arizona Administrative Code.
  • Attachment 18 contains corrective action schedule of compliance approved work plans and reports.
  • Attachment 19 contains stormwater calculations.
  • Attachment 20 contains U.S. EPA Reference Method 9 – Visual Determination of the Opacity of Emissions from Stationary Sources.

There are also permit Appendices that are referenced in the attachments that provide support for the permit application.

Upon the final Permit decision, ADEQ issued a Response to Comments Summary. The summary responded to all significant comments submitted by the general public during the public comment period.

Hazardous Waste Treatment and Storage Permit

ADEQ issued a final permit to WRC on January 22, 2015. This final permit allows WRC to continue to operate its hazardous waste storage and treatment facility in Tolleson for 10 years. The permit contains:

  • Part I - General permit conditions. These conditions are required by Arizona Administrative Code (A.A.C.) R18-8-270(A), (K) and (L)(40 CFR 270.30).
  • Part II - General facility conditions. These conditions are required by A.A.C. R18-8-264(A)(40 CFR 264, Subparts B, C, D and E), A.A.C. R18-8-270(A)(40 CFR 270) and A.A.C. R18-8-270(A), (M) and (N)(40 CFR 270.32 and 40 CFR 270.33).
  • Part III - Specific conditions related to hazardous waste storage in containers. These conditions are required by A.A.C. R18-8-264(A)(40 CFR 264 Subpart I), A.A.C. R18-8-270(A)(40 CFR 270(A)) and A.A.C. R18-8-270(A), (M) and (N)(40 CFR 270.32).
  • Part IV - Specific conditions related to hazardous waste treatment and storage in miscellaneous units. These conditions are required by A.A.C. R18-8-264(A)(40 CFR 264 Subpart X), A.A.C. R18-8-270(A)(40 CFR 270(A)) and A.A.C. R18-8-270(A), (M) and (N)(40 CFR 270.32).
  • Part V - Specific conditions regarding groundwater monitoring. These conditions are required by A.A.C. R18-8-264(A)(40 CFR 264 Subpart F), A.A.C. R18-8-270(A)(40 CFR 270(A)) and A.A.C. R18-8-270(A), (M) and (N)(40 CFR 270.32).
  • Part VI - Specific conditions regarding corrective action for solid waste management units, also referred to as the Corrective Action Schedule of Compliance (CASOC). These conditions are required by A.A.C. R18-8-264(A)(40 CFR 264 Subpart F).

Arizona Hazardous Waste Management Act Permit

For Public Comments

Permit Attachments

There are also permit Appendices that are referenced in the attachments and provided support for the permit application.

U.S. EPA Variance

On August 13, 2002, U.S. EPA issued to WRC a variance that allows the facility to accept, store and treat hazardous waste and then ship it off-site as a recyclable material as long as specific conditions are met. Permit Part IV.K and Attachments 2 and 16 contain the variance requirements.

Groundwater Monitoring

Groundwater is monitored at WRC on an annual basis (April) for existing wells and any newly installed wells will be sampled quarterly for a minimum of two years. Groundwater monitoring reports are submitted to ADEQ within 90 days after receipt of the final laboratory analytical results for each sampling event. Groundwater monitoring has been ongoing at the facility prior to since before 1997. Historic groundwater monitoring results are available in the Groundwater Monitoring Reports submitted by WRC to ADEQ. Only nitrate has been detected in samples above Arizona Water Quality Standards (AWQS). Nitrate exceedances are attributed to agricultural land use in the general vicinity of the site.

Recent groundwater monitoring reports:

Air Quality Program

WRC currently operates four air quality monitors monitoring for PM-10 particulate matter at the facility fence line in accordance with the requirements of a permit issued by the Maricopa County Air Quality Department.

The Hazardous Waste Permit includes a schedule of compliance for WRC to complete an ambient air monitoring program study. This study will supplement the historical air quality monitoring data and modeling performed by WRC; it will evaluate and recommend possible upgrades to the existing fence-line ambient monitoring network, such as the number, type and, locations of monitors, and quality assurance. The study will enable WRC to develop a comprehensive Ambient Air Monitoring Plan that contains details on the monitoring equipment to be used, sampling and analysis methods, operating and maintenance procedures, quality assurance, benchmarks and response outcomes. Upon approval by ADEQ, the Ambient Air Monitoring Plan will become an enforceable component of the hazardous waste permit.

For more information or if you would like to be put on a mailing list for permit activity, please contact us.