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2023-066
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2023-066
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Last modified
4/27/2023 3:25:36 PM
Creation date
4/27/2023 3:24:17 PM
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Template:
Official Documents
Official Document Type
Agreement
Approved Date
04/04/2023
Control Number
2023-066
Agenda Item Number
15.B.4.
Entity Name
Geosyntec Consultants, Inc.
Subject
Agreement for engineering consulting services for landfill closure, landfill gas system expansion
and cell construction, Work Order No. 1 for Segment 3, Cell 3
Document Relationships
2023-067
(Cover Page)
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\Official Documents\2020's\2023
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the extent practical, which may include extending existing vertical gas wells or constructing <br />remote wellheads that connect to existing gas wells. <br />The Consultant will also re-evaluate the need for upgrades to the LFG blowers and/or flare <br />systems and will prepare a landfill gas generation curve for the IRCL facility using the United <br />States Environmental Protection Agency (USEPA) LandGEM model, which will incorporate actual <br />waste disposal rates. Based on the calculated landfill gas generation curve and assumptions of <br />collection efficiency, the Consultant will estimate the gas flow rate that can be collected and <br />compare to the existing LFG blower/flare system capacity. In addition, the Consultant will review <br />the monthly GMS monitoring data (to include LFG flow rate, composition, and water levels in <br />collection wells) for the past year to evaluate the apparent reduction in the gas generation rates <br />compared with the gas generation predictions. A summary memorandum should be included in <br />the GMS design package and subsequent construction documents. <br />D. New Cell Construction Projects <br />As mentioned above, Segment 3 is permitted for 8 cells with Cell 1 constructed in 2013 and Cell 2 <br />constructed in 2020. The construction of Cell 3 is included in the capital improvement plan and it <br />is anticipated that at least an additional cell will need to be constructed during the scope of this <br />agreement. All cell construction projects will require design, permitting, procurement and <br />construction services. <br />E. Engineering Analysis, Documents & Support (as required) <br />a. Subsurface investigation, geotechnical analysis and site-specific soil <br />characterization; <br />b. Solid Waste Permit Modification; <br />C. ERP Permit Modification; <br />d. Preparation of construction level drawings and specifications; <br />e. Provide a construction cost estimate; <br />f. Provide a bid form with quantities; <br />g. Provide bid assistance; and <br />h. Engineering support during construction. <br />1'7 <br />
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