REPORT TO COUNCIL
SUBJECT
Title
Award of Contract for the Repair of Air Floatation Tanks No. 2 & 3 (F17-012) and Approval of Budget Modification No. 20 and Finding of California Environmental Quality Act (CEQA) Categorical Exemption
Report
REPORT IN BRIEF
Approval is requested to award a contract to Anderson Pacific Engineering Construction, Inc. of Santa Clara in the amount of $285,300 for the repair of the Air Floatation Tanks (AFT) No. 2 & 3 at the Water Pollution Control Plant, and for a 10% contract contingency in the amount of $28,530. Approval is also requested for Budget Modification No. 20 in the amount of $143,271 to provide additional funding.
EXISTING POLICY
Chapter 2.08 of the Municipal Code requires Council approval for maintenance and repair contracts greater than $100,000.
ENVIRONMENTAL REVIEW
This project is categorically exempt from review under the California Environmental Quality Act (CEQA) pursuant to CEQA Guideline Section 15301 as the maintenance, repair or minor alteration of an existing facility involving negligible or no expansion of use beyond that presently existing.
BACKGROUND AND DISCUSSION
The four AFT units at the Water Pollution Control Plant (WPCP) are an integral part of the tertiary process in the treatment of wastewater at the facility. Each unit consists of a concrete clarifier tank 60 feet in diameter with a center mechanical column. Three of the AFT units were constructed in 1975. Unit 4 was constructed in 1982. All the units have undergone major rehabilitation, which included replacement of the center mechanical units, electrical upgrades and recoating in 2012 and 2015. The AFT's are slated to be in service until 2035 and are critical to the wastewater treatment process.
Over the last year of operation, additional improvements have been identified to improve processes and enhance the production of recycled water. These improvements include replacing the skimmer wheels and wheel support rails, corrosion repair to t...
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