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State Environmental Permits and Approvals

Archaeological Excavation and Removal Permit

Trigger: DAHP requires this permit if a project excavates, alters, defaces, or removes archaeological objects or resources or Native Indian graves, cairns or glyptic records.

Statutory Authority: WAC 25-48; RCW 27.44; RCW 27.53

Regulatory Agency: DAHP


Aquatic Lands Use Authorization

Trigger: If a project is on state-owned aquatic lands, the Washington State Department of Natural Resources (DNR) may require a lease. Contact your District Land Manager to determine if your proposal requires other forms of authorization. WSDOT Real Estate Services usually works with DNR to obtain this authorization.

Statutory Authority: RCW 79.105; WAC 332-30; RCW 47.12.026

Regulatory Agency: DNR 

Asbestos Removal

Trigger: Ecology requires notification of their agency or local clean air authorities if a project removes asbestos. For example, demolishing old buildings is a WSDOT activity that typically triggers this notification.

Statutory Authority: 40 CFR Part 61.145

Regulatory Agency: Ecology/Local Clean Air Authorities

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    Forest Practices Act Permit

    Trigger: WSDOT projects on private or state forest lands may need a Forest Practices Permit. Project activities that trigger permits include: converting timberland to other uses, harvesting timber, and installing/replacing water crossings on forest roads.

    Statutory Authority: RCW 76.09; WAC 222

    Regulatory Agency: DNR and some counties/cities; WDFW (for Forest Practices Hydraulic Projects)

    Hydraulic Project Approval (HPA)

    Trigger: Projects that will use, divert, obstruct, or change the natural flow or bed of any state waters. Example project activities include: culvert work, stream realignment, bridge replacement, and any work within or over waters of the state.

    Statutory Authority: RCW 77.55; WAC 220-110

    Regulatory Agency: Washington Department of Fish and Wildlife (WDFW)


    Isolated Wetlands Administrative Order

    Trigger: Projects that may cause pollution, including discharge of fill or other alteration of the physical, chemical, or biological properties of isolated wetlands need to obtain an administrative order from Ecology.

    Statutory Authority: RCW 90.48

    Regulatory Agency: Ecology


    Resource Conservation and Recovery Act (RCRA) Site ID Number

    Trigger: WSDOT needs a RCRA Site ID number when dangerous waste may be generated on a project site. Dangerous waste is typically generated during bridge paint-related work, such as removing lead-based paint.

    Statutory Authority: WAC 173-303

    Regulatory Agency: Ecology


    State Environmental Policy Act (SEPA)

    Trigger: All WSDOT projects must comply with SEPA.

    Statutory Authority: RCW 43.21C; WAC 197-11

    Regulatory Agency: Ecology. WSDOT is typically the lead agency for our projects.

    Temporary Exceedance of State Surface Water Quality Standards

    Trigger: Ecology can issue a short term water quality modification for projects with potential turbidity increases within a defined mixing zone. This modification is intended for projects with in-water work that may unavoidably disturb sediment that temporarily increases turbidity. Use of a turbidity mixing zone is intended for brief periods – a few hours or days – not the duration of construction.

    Statutory Authority: WAC 173-201A

    Regulatory Agency: Ecology

    Underground Storage Tank (UST) Notification

    Trigger: If a project requires installing or removing a UST, Ecology requires special notification.

    Statutory Authority: WAC 173-360; RCW 90.76

    Regulatory Agency:
    Ecology


    Water Rights Permit

    Trigger: WSDOT may need to obtain a water right permit for rest areas or maintenance facility, or for diversion of surface water to create a wetland mitigation site. If water from a permitted source is unavailable, a new or changed water right may be needed for withdrawal of more than 5,000 gpd of groundwater, or for any amount of surface water. WSDOT Real Estate Services usually gets this permit. Sometimes temporary water rights are obtained for controlling dust during construction.

    Statutory Authority: RCW Titles 89-90; WAC 173; WAC 508-12

    Regulatory Agency: Ecology

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