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Council approves KSA engineering amendment for water treatment dewatering project
Summary
Council approved a $400,000 contract amendment with KSA Engineering to advance a screw-conveyor dewatering press under the Clean Water State Revolving Fund project. Staff presented a conservative 50% operating-cost savings and a roughly 10-year payback estimate.
City utilities staff presented an amended scope and payback analysis for proposed dewatering equipment (a screw-conveyor dewatering press) to reduce haul weight and operating costs at the wastewater treatment plant. Public works director Gerald said literature shows a 50% to 80% reduction in haulable solids weight; using a conservative 50% estimate and projected costs, Gerald's analysis produced an approximate 10-year payback and noted equipment life estimates of 20—25 years.
Council members pressed staff on operating electricity and maintenance costs, and Gerald said the analysis intentionally used conservative savings figures and that preventive maintenance could be done in-house as the utility's capacity grows. After discussion, council approved $400,000 for KSA engineering and planning for the screw-conveyor project and related design work.
What happens next: Staff will proceed with engineering design and procurement steps; the project will return to council for subsequent contract awards and for budget amendments related to construction costs.
