Model Toxics Control Act

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Ecology administers RCW and provides this definition: "The Model Toxics Control Act (MTCA) is one of several environmental laws in Washington. Known as the state’s cleanup law, MTCA governs the cleanup and prevention of contaminated sites that can threaten people’s health and the environment. MTCA’s main purpose is to raise sufficient funds to clean up all hazardous waste sites and to prevent the creation of future hazards due to improper disposal of toxic wastes into the state’s lands and waters.

• https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Rules-directing-our-cleanup-work/Model-Toxics-Control-Act
• RCW 70.105D includes the substance of the act.

Notes

• MTCA prescribes a series of tasks where a Potentialy Liable Party works through a supervised incremental design process.
  • Remedial Investigation/Feasibility Study (RI/FS)
  • Cleanup Action Plan (CAP)
• A set of criteria located in WAC 173-340-360 defines how a cleanup action shall be identified.
• MTCA includes a "disproportionate cost analysis" which in some situations can prevent the state from successfully requiring a liable party to complete a more thorough cleanup action, if a less thorough clean up action can be show to remove risk.
• MTCA supports the state in pursuing Natural Resource Damage Assessment and there are very few precedents or rules defining limits on state authority. In particular, unlike CERCLA there is no stipulated statute of limitations.
• NRDA may not be a priority among some MTCA-authorized teams. There are NRDA efforts in state-led cases at Port Gardner in the Snohomish Delta, in the Port Gamble Ecosystem and Port Angeles Harbor however they involve Federal Trustees.
• The Puget Sound Initiative in 2009 identified a set of Puget Sound Priority cleanup sites - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Cleanup-sites/Puget-Sound

Questions

• Can a CAP require pre-consultation during design to ensure remedies are consistent with state and federal law as required.
• What are best methods for evaluating costs and benefits during the incremental cost analysis.