Empirical demonstrations can show that applicable groundwater cleanup levels aren’t being exceeded.

Facilities that store, treat, or dispose of dangerous waste must have a dangerous waste permit.

Frequently asked questions about pharmaceutical waste and our answers.

Guidance for Transportation section for Part B of SEPA environmental checklist.

Facilities that meet certain criteria can use pharmaceutical waste management options.

Learn how to manage waste pharmaceuticals properly to keep them out of the environment.

PowerPoint slides from the Rule Advisory Meeting Presentation.

Rulemaking Announcement (WAC 173-135)

2023 Department of Ecology Rules Agenda

This July 2019 document compiles the Cleanup Rule comments received from the public, Ecology staff and Office of the Attorney General from 2009 through 2018.

This document contains comments received from the public during the Exploratory Rulemaking process, from February 15 through May 11, 2018. These include comments provided through the online eComment system, by mail, by email, and on comment cards at the April 3rd listening session.

This is the letter requested of Ecology regarding the NDZ petition.

Rule Agenda for July - December 2017

This is the final rule language for the No Discharge Zone rule

The narrative description of Figure 1. pie chart on the Exploratory Rulemaking webpage.

You're invited to join our statewide listening session in-person or online on April 3, 2018, from 1pm to 3:30pm. Webinar starts at 1:30pm.

This is the draft report of the summary of market modeling and analysis of the proposed cap and invest program of the Climate Commitment Act.

Boilerplate for notification documentation

Rule implementation doc_Plan Holder Implementation Guidance

Signed short term modification administrative order for total dissolved gas criteria