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CONSENT DECREE EXHIBIT D ' EVERETT LANDFILL/TIRE FIRE SITE Exhibit D Scope of Work and Schedule The following scope of work describes work to be performed under existing conditions and for any future development at the Everett Landfill/Tire Fire Site (Site), pursuant to Consent Decree No. . Anticipated completion dates are included for work described for existing conditions, and schedule requirements are included for future work. A process for coordination between the City of Everett (City) and the Department of Ecology (Ecology) is also outlined, and a checklist to facilitate this future coordination is included. Scope of Work for Existing Conditions Gas Exposure Pathway E-1. The City shall conduct a field investigation to determine the waste boundary. An investigation work plan shall be approved by Ecology. A field investigation report shall be submitted to Ecology that sumimarizes the findings and specifies locations outside the waste boundary for proposed perimeter probes. E-2. The City shall install a new perimeter compliance landfill gas monitoring probe network consistent with the Cleanup Action Plan. E-3. The City shall monitor the landfill gas monitoring probe network in accordance with the Compliance Monitoring and Contingency Plan (CMCP), and shall implement contingency measures as may be necessary in accordance with the CMCP (attachment to Exhibit Q. E-4. The City shall prepare an engineering design report to define alternatives for contingent perimeter landfill gas migration controls. The City shall conduct easement negotiations ' as necessary for potential installation of contingency controls. E-5. The City shall continue monitoring of the Animal Shelter, Transfer Station, and off -site buildings in accordance with the CMCP (attachment to Exhibit Q. E-6. The City shall implement institutional controls for the existing on -site Animal Shelter, including signage, confined space entry procedures, and landfill gas health and safety training for employees, in accordance with the CMCP (attachment to Exhibit Q. Groundwater Exposure Pathway E-7. The City shall continue operation and maintenance of the leachate collection system until such time that the shallow aquifer may be proven in compliance with chemical cleanup criteria. E- 8. The City shall install new compliance monitoring and upgradient monitoring wells, and properly abandon wells not utilized for compliance monitoring, in accordance with the CMCP (attachment to Exhibit Q. FINAL Exhibit D Page 1 of 13