Washington Thermal Discharges: What you need to know

Governing Law and Regulations

Designated uses and criteria: Washington Administrative Code (WAC) 173-201A-200 to WAC 173-201A-260

For a Limited Time receive a FREE EHS Report "Recordkeeping for EHS Managers." This special report contains a recordkeeping checklist to help you keep track of your records for major environmental laws and OSHA's Hazard Communication Standard. Download Now

Definitions: WAC 173-201A-020

Fresh water designated uses: WAC 173-201A-200

Marine water designated uses: WAC 173-201A-210

Solid waste handling facilities: WAC 173-304-490

State waste discharge permits: WAC 173-216-060

General permits: WAC 173-226-100

Aquaculture facilities: WAC 173-221A-100

Regulatory Agency

Washington Department of Ecology (WDOE) Water Quality Program

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Washington follows the federal Clean Water Act and prohibits thermal discharges above designated levels. The state classifies fresh waters by actual use and marine waters by four general categories. Washington also designates the temperature criteria for listed water bodies in the state. For additional guidance, see the national section THERMAL DISCHARGES.

Administration and enforcement. WDOE's Water Quality Program and the WDOE regional offices are responsible for the administration and enforcement of the state's thermal discharge regulations.

State Requirements


WAC 173-201A-020

Pollution. WDOE defines "pollution" as contamination or other alteration of the physical, chemical, or biological properties of any waters of the state, including change in temperature, taste, color, turbidity, or odor of the waters, or such discharge of any liquid, gaseous, solid, radioactive, or other substance into any waters of the state as will or is likely to create a nuisance or render such waters harmful, detrimental, or injurious to the public health, ...

>> Read more about Thermal Discharges

State Requirements

National | Alabama | Arizona | Arkansas | California | Colorado | Connecticut | Delaware | Florida | Georgia | Illinois | Indiana | Iowa | Kansas | Kentucky | Louisiana | Maryland | Massachusetts | Michigan | Minnesota | Mississippi | Missouri | Montana | New Hampshire | New Jersey | New York | North Carolina | Ohio | Oklahoma | Oregon | Pennsylvania | Rhode Island | South Carolina | Tennessee | Texas | Utah | Virginia | Washington | West Virginia | Wisconsin |

Washington Thermal Discharges Resources

Thermal Discharges Products

Free Special Reports
Get Your FREE Special Report. Download Any One Of These FREE Special Reports, Instantly!
Featured Special Report
Claim Your Free Copy of Recordkeeping for EHS Managers

One of the most tedious aspects of an EHS manager’s job is to keep track of a host of records. Laws have been passed in every jurisdiction requiring facilities to produce and retain records of various kinds. Don’t get caught without the necessary records in the event of a surprise EPA or OSHA inspection! This special report shows EHS managers at a glance the records they must keep on hand and for how long.

Download Now!

This special report contains a recordkeeping checklist to help you keep track of your records for major environmental laws and OSHA’s Hazard Communication Standard.

Also included are 3 useful tables which provide:
  • A summary listing of federal environmental recordkeeping requirements
  • A list of federal safety recordkeeping requirements.
  • A list of federal recordkeeping requirements for DOT and the Department of Homeland Security as they apply to hazardous material transporters and chemical facilities.
Download Now!