Explanation
1. BACKGROUND
The Department of Public Service, Division of Refuse Collection, currently manages a contract for explosive gas monitoring service at the Jackson Pike and Fisher Road landfill locations. Civil & Environmental Consultants, Inc., was awarded the annual contract for measuring and reporting methane levels at these locations, as mandated by the Environmental Protection Agency. The reporting is based on The Explosive Monitoring System Design Plan and Sampling and Reporting Procedures, which were prepared in June of 1992. Since then, new probes have been installed, resulting in inadequate and inaccurate site plans.
Furthermore, the Jackson Pike landfill has been emitting methane gas concentrations which exceed the threshold limits of the EPA. To ensure that the information which is communicated to EPA and all relevant parties is complete and accurate, the current contract for landfill monitoring will be modified to include plan, maps, and reporting information update.
Work to be included in this contract modification includes but is not limited to:
Addition of subsurface logs and as-built gas probe details.
Comparison of information regarding probe depths in exiting gas monitoring reports prepared for Ohio EPA to original bore logs, probe construction diagrams, and field measurement of probe depths and update.
Prepare site-specific geological cross section based on the comprehensive subsurface data and probe monitoring details.
Update the gas monitoring probe and site features maps.
Prepare a plan view explosive gas detection and gas pressure map for the Jackson Pike Fisher Rd.
Update the gas migration contingency plan.
The Department of Public Service, Office of Support Services, solicited an informal bid for landfill monitoring service. This service was informally advertised on the City's Vendor Services site and closed on 1/18/2011
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