CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Bid 25-149, Liquid Cationic Emulsion Polymer for Centrifuge Dewatering, to Polydyne, Inc. for an amount not to exceed $409,691.10 and for a 30-month term
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DEPARTMENT: Water Utilities
SUBMITTED BY: Darrell Blenniss, Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
In June 2025, the Water Utilities issued Bid 25-149, Liquid Cationic Emulsion Polymer for Centrifuge Dewatering, to seek a qualified vendor to supply liquid cationic emulsion polymer for use at the City's Springbrook Water Reclamation Center (SWRC). This polymer is used to dewater the residual solids from the wastewater treatment process.
As part of the bid process, qualified polymer vendors' products were tested at full plant scale conditions and evaluated for optimum performance. The performance testing established agreed upon representative dosages to accomplish required results per the Utilities' specifications for centrifuge dewatering. Vendors' dosages were determined as a prerequisite prior to the bid cost numbers being submitted.
DISCUSSION:
Advertisement Date:
06/18/2025
Notices Sent:
103
Bid Opening Date:
10/01/2025
Planholders:
11
Responses Received:|1010|
Bids were received from the following vendors:
Vendor Name
Bid Amount
Bid Equalization Factor1
Equalized Bid Amount
Polydyne Inc.
$409,691.10
($74,509.00)
$335,182.10
Solenis LLC
$354,981.25
-
$354,981.25
1 The bid equalization factor is the dollar value of reduced disposal costs associated with the polymer vendor's product.
The bidding criteria were based on the price per pound of polymer and dosage needed to produce up to 6,500 dry tons of biosolids for land application. One other vendor conducted plant-scale polymer trials but did not submit a bid.
For bid comparison purposes, a bid equalization factor is calculated to give credit for polymers that can produce a drier cake (dewatered biosolids), resulting in a lower volume of biosolids for disposal. ...
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