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Environmental Health Division - Hazardous Materials Management (CUPA)

The Hazardous Materials Management Group implements the Unified Program (UP), at the local government level pursuant to Title 27 § 15110(a)(2). Siskiyou County Environmental Health Division of the Community Development Department became the Certified Unified Program Agency (CUPA) on January 1, 1997. The Environmental Health Division is certified by the Cal/EPA Secretary to implement the Unified Program specified by Health and Safety Code § 25404(a)(1)(A), within Siskiyou County.

Senate Bill 1082 (Chapter 418, Statutes of 1993) created the Unified Program (UP) to consolidate, coordinate, and make consistent the administrative requirements, permits, inspections and enforcement activities, and fees for the program elements detailed below.

Siskiyou County Environmental Health is responsible for responding to incidents involving any release or threatened release of hazardous materials. Threats to people, property and the environment are assessed, and then remedial action procedures are conducted under the supervision of an Registered Environmental Health Specialist.

Any questions regarding this program may be directed to the division by e-mailing or calling 530-841-2117. 

Environmental Health Hazardous Material Programs

Beginning January 1, 2013 State law requires that all CUPA-regulated businesses submit hazardous materials business plan (HMBP) and underground storage tank (UST) information electronically through the California Environmental Reporting System (CERS). For assistance with how to use CERS please visit the CERS Help Center or contact your inspector.

Siskiyou County business must annually certify or update their HMBP by March 1 of each year.

The purpose of the business plan program is to prevent damage to the health and safety of workers, the public, and the environment from the release or threatened release of hazardous materials. In addition, the business program is used to satisfy Community Right-To-Know laws by providing hazardous material information to emergency responders and the community.

Businesses located in cities and unincorporated areas of Siskiyou County are required to disclose all hazardous material and waste that are used, handled or stored at their facility above reporting thresholds. In general, the reporting thresholds are:

  • 55 gallons for liquids
  • 500 pounds for solids
  • 200 cubic feet for compressed gases

Business plan information must be electronically submitted through the California Electronic Reporting System (CERS). Business plans must be annually certified or updated by March 1 of each year, or within 30 days of a substantial change. Routine facility inspections are conducted to verify the business plan information.

The Siskiyou County Environmental Health Division (SCEH) is the administering agency responsible for implementing the California Accidental Release Prevention (CalARP) program in Siskiyou County.

CalARP was adapted from the Federal accidental release program established by the Clean Air Act Section 112 (r) and modified to meet California’s needs. The goal of the CalARP Program is to prevent accidental releases of substances that pose the greatest risk of immediate harm to the public and the environment. The CUPA staff of the County Environmental Health Division conducts inspections at CalARP facilities and reviews Risk Management Plans.

A CalARP facility is a facility that handles, manufactures, uses, or stores any of the extremely hazardous materials listed as regulated substances found in tables 1-3 of the California Code of Regulations, Title 19 Division 2, Chapter 4.5  above threshold quantities. Facilities must submit a Risk Management Plan (RMP) if they handle a Federal Regulated Substance in amounts greater than federal threshold quantities (see Tables 1 & 2) OR if they handle a State Regulated Substance in amounts greater than the state threshold quantities (Table 3) AND have been determined to present a significant likelihood of a regulated substance accident risk.

Program Overview

SCEH provides regulatory oversight for the CalARP program including:

  • Routine inspections of CalARP facilities
  • Completeness reviews of Risk Management Plans
  • Evaluation reviews of Risk Management Plans


The Underground Storage Tank (UST) program applies to owners and operators of USTs used for the storage of hazardous substances. Typically, USTs are used to store large amounts of hazardous materials such as gasoline, diesel, and waste oils. The purpose of the UST Program is to protect public health, the environment and groundwater from potential contamination or adverse effects associated with unintended releases from the underground storage of hazardous materials.

Siskiyou County Environmental Health (SCEH) administers the UST Program in cities and unincorporated areas of Siskiyou County. SCEH ensures that businesses with regulated USTs are properly permitted and meet the monitoring requirements applicable to their type of system. Regulatory oversight for the operation of UST systems includes:

  • Permit issuance
  • Annual routine inspections
  • Review, approval, and inspections of construction, repair, and upgrade activities
  • Review, approval, and inspections of removal or closure activities

UST Program applications and guides can be found below in the Hazardous Materials Resource Center.

Aboveground Petroleum Storage Act (APSA) guidelines can be found on the California State CUPA site.

The Siskiyou County Environmental Health Division (SCEH) regulates hazardous waste generation. Hazardous waste is defined in the California Code of Regulations 22 CCR 66261.3. In California, there are four characteristics that identify a hazardous waste:

  1. Ignitable
  2. Reactive
  3. Corrosive
  4. Toxic

In addition to the four characteristics, if a waste is listed in the State and/or Federal regulations, then it is also considered a hazardous waste.

Program Overview

In conjunction with the Hazardous Materials Business Plan program, Siskiyou County CUPA (Certified Unified Program Agency) staff:

  • Inspect businesses for compliance with the Hazardous Waste Control Act
  • Verify Hazardous Waste accumulation, labeling, container and tank management standards, and waste generator status
  • Respond to complaints of illegal disposal of hazardous waste
  • Issue permits and inspects businesses that treat hazardous waste pursuant to permit by rule, conditional authorization, or conditional
  • Exemption laws and regulations

There are three types of hazardous waste generators:

  • CESQG (Conditionally Exempt Small Quantity Generator)
  • SQG  (Small Quantity Generator)
  • LQG (Large Quantity Generator)

Hazardous Waste Generator Regulatory Summary

Hazardous Materials Resource Center

Resource Title Downloadable File Type
Environmental Consultants - Siskiyou County Download File Guide
Hazardous Waste Transporters Serving Siskiyou County Download File Guide
Oil Disposal Locations - Siskiyou County Download File Guide
Public Participation CUPA Program Evaluation Survey Download File Other
Request to View CUPA Files Download File Application
Return to Compliance Certification Form Download File Report
Underground Storage Tanks (UST) - Closure Permit Application Download File
Underground Storage Tanks (UST) - Licensed Contractors for Tank Closure/Removal Download File Guide
Underground Storage Tanks - UST Modification/Repair Permit & Guidelines Download File Permit