Agenda Item: 8(b)
Prepared By: Jeffrey E. Poteet, General Manager, Water & Sewer Department
Business: Consent Agenda Item
Department: Water & Sewer
Subject:
Title
Authorize the Interim City Manager to Issue a Purchase Order to Shannon Chemical Corporation for 3,400 gallons of Phosphoric Acid to be used at the North Water Treatment Plant in the amount of $92,378 - Jeffrey E. Poteet, General Manager, Water & Sewer Department.
Body
BACKGROUND:
The North Water Treatment Plant (NWTP) treats raw surface water from the City's Source Water Facility using a lime softening and membrane filtration process. The plant is permitted to produce up to 6.67 million gallons per day (mgd) of drinking water and supplies approximately 70% of the City's total demand.
As part of the treatment process, 75% phosphoric acid (PO4) is applied for corrosion control within the distribution system. This chemical is essential for reducing water corrosivity and preventing the leaching of metals such as lead (Pb) and copper (Cu) from pipes and plumbing fixtures into the drinking water. By forming a thin protective film on the interior surfaces of pipes, phosphoric acid helps maintain water quality, extend the service life of infrastructure, and ensure compliance with regulatory requirements, including the Lead and Copper Rule.
To support continuous, safe, and compliant plant operations, the City must procure phosphoric acid on a routine basis. Shannon Chemical Corporation is the City's contracted supplier under Contract No. 2022-031-8. Staff is requesting City Council approval to proceed with this purchase.
The approved Water and Sewer FY 2026 Operating Budget includes funding for the purchase and delivery of approximately 3,400 gallons of phosphoric acid. This quantity is estimated to provide a supply lasting approximately 1.5 to 2 years, based on current usage rates.
FUNDING SOURCE / FISCAL IMPACT:
Funding for this purchase is provided through the approved FY2026 W&S Operating fu...
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