Safety-Kleen Corporation (Chandler) (SKC) Waste Storage Facility
EPA ID No: AZD 981 969 504
Facility Location and Description
Safety-Kleen Corporation (Chandler) (SKC) is located at 6625 West Frye Road (Rd) in Chandler, Arizona. The undeveloped property for the Chandler Service Center was purchased on March 16, 1987. A Service Center was built that consists of: 1) A nominal 8400-square-foot building with offices, a return and fill area with two drum washer units and a loading dock, and a contained warehouse area for container storage. The office area has a second floor for a total of 10,480 square feet (ft) of office space; 2) Two aboveground storage tanks within secondary containment for spent solvent and spent antifreeze; and 3) a third aboveground double-walled storage tank for clean solvent only.
Safety-Kleen began with a parts washing service, and developed similar services for dry cleaning, paint waste, used antifreeze, photo imaging and used oil. The services include primarily collecting wastes from customers, accumulating wastes at the Service Center and transporting wastes off-site primarily for reclamation.
The global position of the facility is approximately 33 degrees, 17 minutes, 54 seconds north latitude and 111 degrees, 57 minutes, 18 seconds west longitude. The facility is located on the south side of West Frye Rd, approximately 60 ft east of the intersection with South Beck Ave in Chandler, Arizona. It is rectangular in shape with its longer boundary extending 365 ft eastward along West Frye Rd. The shorter, north-south boundary extends approximately 250 ft southward from West Frye Rd.
SKC is currently operated as a hazardous waste storage facility under an Arizona Hazardous Waste Management Act (AHWMA) permit (Permit). SKC stores and consolidates spent parts washer solvent and spent antifreeze in the tanks and accumulates spent parts washer solvent, immersion cleaner, aqueous parts washer solution, parts washer sludge, aqueous brake cleaner, dry cleaner filter powder, paint gun cleaner, paint, dry cleaner bottoms, spent parts washer tank bottoms, and silver containing film in the container storage area. The return and fill area with drum washer units are used to manage waste parts washer solvent and sludge. The stored wastes may exhibit the characteristic of toxicity and approximately 8% of the container storage area may hold flammable material. Wastes collected by the Service Center are segregated, consolidated, accumulated and shipped for reclamation or disposal.
Hazardous wastes are profiled at a new customer’s site by a trained SKC representative and must pass Permit acceptance criteria before they are accepted at the Service Center. Any material that is suspect during subsequent inspections must undergo a physical and chemical analysis before it can be accepted. SKC has an agreement with its customers that they must notify SKC of any process changes that may require re-profiling. SKC also performs an annual waste characterization using a sampling of data from its facilities nationwide to verify whether they are typically, but not always, hazardous or non-hazardous. Once a customer’s waste is accepted, SKC transports the wastes, which are in various containers meeting United States Department of Transportation guidelines (US DOT) or in tanker trucks, to the Service Center. The containers are stored in the designated storage area or wastes are transferred to a tank for storage in accordance with the Permit.
SKC’s business is primarily a parts cleaner service that involves the leasing of a parts cleaning unit containing parts washer solvent or aqueous based parts washer solution. A Safety-Kleen employee cleans and inspects the parts washer machine and replaces the container of spent solvent or solution with one of clean product. At the end of each day, the spent solvent and solution collected during the service is transported back to the Service Center and transferred from containers to a storage tank. The solvent is poured from the containers into the drum washers in the return and fill area, which are plumbed to the spent parts washer storage tank. The return and fill area has secondary containment with a sump to collect any spills, which are then added to the drum washer units and pumped into the tank. Periodically, a tanker truck is dispatched from one of the recycling centers to deliver a load of clean solvent and to collect the waste parts washer solvent at the Service Center. Approximately two-thirds of the solvent used by Safety-Kleen customers has been reclaimed with the remaining being purchased from a vendor. SKC also established a parts cleaner reclamation service for users who own their own machines.
Management of other hazardous wastes through the Service Center includes collecting the containerized waste from customers and storing them in the container storage area. Waste-filled containers are accumulated and then transported off-site for reclamation or disposal. This includes distributing regenerated waste as product for their customers’ cleaning equipment. All of the wastes and product stored in the container storage warehouse are compatible and, except for the spent aqueous parts washer, wastes are not removed or added to the containers in the warehouse.
Spent antifreeze is collected from the customer and transferred into a tank for recycling. Antifreeze is typically considered non-hazardous and not regulated by the Permit. However, it is possible that the antifreeze could become contaminated with hazardous wastes with the variety of customers SKC has planned to service, including industrial. Therefore, measures similar to management of the hazardous waste parts washer solvent are included in the Permit to reduce the possibility that the spent antifreeze is hazardous waste, such as visual inspection and profiling of the waste antifreeze by a trained representative at the customer’s site and management as a hazardous waste if the profile reveals that it is a hazardous waste.
Waste management activities performed at SKC under the Permit include:
- Container Storage Area
SKC has one container storage area within the warehouse attached to the main building. The warehouse is located at the back of the building near the center of the property. This area has a 17,280 gallon storage capacity of which no more than 6,912 gallons may be hazardous waste and no more than 1,375 may be flammable material. There is also a 10-day transfer waste area. There is a loading/unloading dock for management of containers on the west side of the warehouse;
- Tank Farm
There are two 12,000 gallon above ground storage tanks located within secondary containment; one containing spent hazardous parts washer solvent and one storing spent antifreeze. The operating capacity of each tank is 11,400 gallons. There is also a double-walled tank located adjacent to and outside of the tank farm secondary containment, which only stores non-permitted product solvent. The tank farm is located east of the building; and
- Return and Fill/Drum Washer Units
There are two drum washer units located within the return and fill area. Spent parts washer solvent is poured into the drum washer units and is piped into the spent solvent tank. The two drum washer units have a permitted operating storage capacity of 162 gallons each. A loading/unloading dock is part of the area with secondary containment and a sump underneath. The return and fill area is located between the offices and the container storage area warehouse.
Facility Environmental Controls and Dry Wells
SKC is required to adhere to 40 Code of Federal Regulations (CFR) 264 Subpart BB and CC under their Permit to insure vapors are not leaking from the waste solvent tank and vent system, related equipment and piping, and containers.
For groundwater protection, a vadose zone vapor monitoring system was installed during the construction of the Service Center to monitor for any releases or leaks beneath the tank farm. The system includes two vadose zone monitoring probes which continuously monitor the soils between the facility and groundwater.
A storm water retention pond collects run-on and run-off for the facility. It includes two dry wells and two Envibro system treatment units operated in accordance with City of Chandler requirements. The collected storm water is tested and compared to limits required by the City of Chandler. If the storm water exceeded the limits, it is transported off-site for disposal. If it meets the limits, the water is pumped through the Envibro system as a precaution to remove organic contaminates prior to discharging the water to the dry wells.
Hazardous Waste Permit
The AHWMA Permit was issued to SKC on March 20, 2006 and is signed by the Director of ADEQ’s Waste Programs Division. It includes all permit conditions deemed necessary to protect human health and the environment. All permit conditions are based on the permit application, with supplements and updates submitted by the applicant on or before November 23, 2005.
The term for the Permit is ten years - it expires on March 20, 2016.
Contents of the Permit includes:
- Part I - General permit conditions required by Arizona Administrative Code (A.A.C.) R18-8-270 A and L (40 CFR §270.30).
- Part II - General facility conditions required by A.A.C. R18-8-264.A and A.A.C. R18-8-270.A, M, N, and O (40 CFR §270.32).
- Part III - Specific conditions related to hazardous waste container storage and container management required by A.A.C. R18-8-264.A (40 CFR §264 Subpart I)
- Part IV - Specific conditions related to hazardous waste tank storage and tank management required by A.A.C. R18-8-264.A (40 CFR §264 Subpart J).
- Part V - Specific conditions regarding corrective action for solid waste management units (SWMUs), also referred to as the Corrective Action Schedule of Compliance (CASOC). Corrective action is authorized by the Arizona Revised Statutes §49-922.B and Section 3004(u) of the federal Resource Conservation and Recovery Act, as amended by the Hazardous and Solid Waste Amendments. The regulatory basis for the corrective action can be found in A.A.C. R18-8-264.A (40 CFR §264.101) and A.A.C. R18-8-270.A (40 CFR §270.33).
- Attachment 1 -- Detailed description of the SKC facility.
- Attachment 2 -- Description of the waste characteristics and waste management.
- Attachment 3 -- Description of procedures to prevent hazards and description of the inspection schedule.
- Attachment 4 -- Contingency Plan.
- Attachment 5 -- Description of the facility training plan.
- Attachment 6 -- Closure Plan, Closure Cost Estimate, and Financial Assurance documentation.
- Attachment 7 -- Description of container management.
- Attachment 8 -- Tank system assessment.
- Attachment 9 -- Description of manifesting and record retention requirements.
- Attachment 10 -- Most recent Arizona administrative code for hazardous waste at the time the Permit was issued.
There is also a set of Permit appendices that provide reference and supporting documentation and checklists.
No significant comments were submitted by the applicant and the general public during the public comment period.
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