Agenda Information Sheet
DEPARTMENT: Solid Waste and Recycling
CM/ ACM: Mario Canizares
Date: August 14, 2017
SUBJECT
Title
Consider recommending approval of a Professional Services Agreement (PSA) with D&S Engineering Labs of Denton, Texas to perform inspections and materials testing in the construction of Cells 3B, C, and D and associated site improvements of the City of Denton landfill, located at 1527 S. Mayhill Road, Denton, Texas, for an amount not to exceed $78,310.00. (PSA 6508)
Body
BACKGROUND
D&S Engineering Labs has submitted a proposal to provide professional services related to the construction inspection and materials testing during the construction of landfill Cells 3B, C, and D as listed below:
1) Cell construction inspection
2) Cell construction - Soil testing
3) Cell construction - Geomembrane testing
4) Concrete testing
5) Materials testing
Landfill cell development requires the completion of an approved Soils and Liner Quality Control Plan (SLQCP) prepared under the direction of a registered professional engineer. The SLQCP includes details about the liner as well as quality control procedures and data collected during project construction and development. The information collected in the SLQCP is reported to the Texas Commission of Environmental Quality (TCEQ) in the Soil and Liner Evaluation Report (SLER) and the Flexible Membrane Liner Evaluation Report (FMLER).
The agreement with D&S includes quality control testing and performance data collection during cell construction. D&S Engineering Labs will provide on-site observation during liner construction, geomembrane placement, and material testing. The professional services to be provided and the associated costs are detailed in Exhibit 1.
During the construction process, D&S will work closely with Parkhill, Smith, & Cooper (PSC), the engineering firm responsible for cell design and construction management services. D&S will be responsible for ensuring tha...
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