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CITY OF WEST CHICAGO
INFRASTRUCTURE COMMITTEE
AGENDA ITEM SUMMARY
ITEM TITLE:
AGENDA ITEM NUMBER: B.D.
Resolution No. 20-R-0007 — Layne Christensen Company
- Approval of Contract for Professional Services Related to COMMITTEE AGENDA DATE: February 6, 2020
the Rehabilitation of the Pump and Motor Assembly COUNCIL AGENDA DATE: Feb 17, 2020
Associated with the City’s Well Station No. 8 —*
STAFF REVIEW: Robert E. Flatter, P.E., Director of Public Works sauaturs’ 27
Rocky Horvath, Utility Superintendent
APPROVED BY CITY ADMINISTRATOR: Michael L. Guttman SIGNATURE.
ITEM SUMMARY:
The current pump and motor assembly associated with Well Station No. 8, located at 1255 Helena Drive, is a
Bryon Jackson assembly installed in March of 1988. The Byron Jackson well pump operates at a depth of
approximately 343’ below ground and is rated to pump approximately 700 gallons per minute (gpm). The 40 HP
Byron Jackson Type H submersible motor has a mercury seal versus a mechanical seal. In summer 2019 a
decrease was observed in the pump’s performance and the well was placed out of service in November 2019
when its performance averaged less than 100 gallons per minute. Byron Jackson assemblies are generally known
to last approximately ten (10) to fifteen (15) years before needing inspection and services/rehabilitation. Well
Station No. 8’s was last serviced in 2005. Due to its history of being a factory-authorized sales and service
representative for Byron Jackson pumps and motors (including those containing mercury seals), and its history of
servicing the City’s Byron Jackson well assemblies, staff solicited a proposal from Layne Christensen Company
(Layne) of Aurora, Illinois, to pull and rehabilitate the well assembly at Well Station No. 8 (see attached proposal).
Layne’s proposal includes a complete rebuild and rehabilitation of the existing well equipment including a television
survey of the well casing. The estimated total for these services is $68,140.00. One additional item addressed in
Layne’s proposal is replacement of the well motor, if needed. The existing motor has a mercury seal system that
needs to be inspected before reinstallation. If inspection determines the mercury seal has failed and cannot be
reused, a factory exchange replacement motor has been quoted at a net cost of $59,770.00. For a total project
cost estimated at $127,910.00.
Since the well is currently inoperable, City staff recommends the rehabilitation of the well assembly associated with
Well Station No. 8 before the start of the peak summer water system demand. Therefore, staff recommends that a
professional services contract be awarded to Layne Christensen Company of Aurora, Illinois, related to the
rehabilitation of the pump and motor assembly at the City’s Well Station No. 8, for an amount not to exceed
$128,000.00.
ACTIONS PROPOSED:
Approve Resolution No. 20-R-0007 authorizing the Mayor to execute a contract with Layne Christensen Company
for professional services related to the rehabilitation of the pump and motor assembly at the City’s Well Station No.
8 for an amount not to exceed $128,000.00.
COMMITTEE RECOMMENDATION:
The Infrastructure Committee voted 6-0 for approval.