Chapter 173-351 WAC
Criteria for Municipal Solid Waste Landfills


The Department of Ecology has adopted revisions to Appendix 3 of WAC 173-351-990 to include two hazardous organic constituents: 2,3,7,8-Tetrachlorodibenzo- p-dioxin - [CAS 1746-01-6] and alpha, alpha-Dimethylphenethylamine [CAS 122-09-8]. This revision affects landfills that are required to perform assessment monitoring under the rule, and is necessary to be consistent with federal rules in 40 CFR Part 258. Operators of municipal solid waste landfills must meet federal program requirements. Revising our rule eliminates possible noncompliance for facilities that inadvertently omit the two additional constituents required to be monitored under federal rules. It also clarifies monitoring requirements for local jurisdictional health authorities that have the lead for issuing and enforcing solid waste permits. These revisions will enable Ecology to obtain full approval of our municipal solid waste program from the U.S.

The revised rule will be effective on November 6, 2015.

Date (date subject to change) Activity
March 9, 2015 File rulemaking (file CR-101 form)
March 9, 2015 - July 16, 2015 Developing the rule proposal package for this rulemaking
July 16, 2015 Proposed rule (CR-102 form) filed
Proposed rule text and supporting documents available
Public comment period starts
August 27, 2015 Public Hearing.
September 9, 2015 End of public comment period on purposed rule.
September 9, 2015 Reviewing comments and preparing the adoption package for this rule making.
October 1, 2015. Filed October 5, 1015 Rule Adopted and CR-103 Filed.
We are here
November 6, 2015
Effective Date of Adopted Rule.



Kyle Dorsey,


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