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CONSENT ITEM — 8D ,-ARZEN HILLS MEMORANDUM DATE: October 9, 2023 TO: Honorable Mayor and City Councilmembers Dave Perrault, City Administrator FROM: David Swearingen, P.E. Public Works Director / City Engineer Jeff Frid, Public Works Superintendent SUBJECT: Booster Station Variable Frequency Drive (VFD) Replacement Budgeted Amount: Actual Amount: Funding Source: $0 $14,918 Water Utility Fund Council Should Consider Motions to approve, table, or deny the following: • Invoice from Ideal Services, Inc. in the amount of $14,918 for replacement of the two Variable Frequency Drives (VFD) of the booster station. Background/Discussion On July 6, 2023 Public Works Staff was called in for a pump fail alarm at the Booster Station (1230 Red Fox Rd). At that time the VFD (variable frequency drive) for pump 1 was diagnosed as non -repairable and was the primary problem of the alarm. The booster station has 2 pumps that are responsible for pumping water from the south tower to the north tower. The north pressure zone supplies water to all properties north of I-694. The primary purpose of a VFD is to run the pumps electric motor at variable RPM's to meet demand. After consulting with Ideal Services, it was determined that the both VFD's at the booster station were obsolete and not supported for parts to rebuild or programing. Ideal Services recommended the replacement VFD that fit our application, and staff determined that replacing both obsolete VFD's was best for our system. Ideal Services took the lead in sourcing, installing, and setting our pumping parameters into the new VFD's. The new parts were installed on July 7, 2023 (for pump 1) and July 19, 2023 (for pump 2). The old VFD's were 20+ years old and have been rebuilt approx. 3 times during that time. The replacement VFD's are rated for a 15 to 20-year life depending on usage. Page 1 of 2