TO: Honorable Mayor and Members of the City Council
THRU: Jarad Hildenbrand, City Manager
FROM: Christopher Cash, Public Works Director
1. Subject
title
Approval of plans and specifications for White Oak Ridge and Palmyra Avenue Water Quality Storm Drain Improvement Project; authorization to advertise for bids; and finding of California Environmental Quality Act exemption
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2. Summary
Plans and specifications have been completed, and the project is ready to be advertised for bids. The total estimated construction cost, including contingencies and construction engineering, is $785,000.
3. Recommended Action
recommendation
1. Approve the plans and specifications and authorize advertising for Bid No. 26-27.08 (D-184).
2. Find that the proposed project is categorically exempt from the provisions of the California Environmental Quality Act (CEQA) per State CEQA Guidelines 15301 (Class 1(c) - Existing Facilities).
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4. Fiscal Impact
None at this time. Costs and potential appropriations will be included as part of future Council action to award contract.
5. Strategic Plan Goals
Goal 5: Improve Infrastructure, Mobility, and Technology
6. Discussion and Background
The City of Orange Public Works Department applied for and received funds through the Environmental Cleanup Tier 1 Grant Program managed by the Orange County Transportation Authority (OCTA). This is a competitive grant program within Orange County that funds projects that protect Orange County beaches and waterways from transportation-generated pollution and improve overall water quality. The City has been awarded $600,000 to install a hydrodynamic separator on White Oak Ridge near the intersection of White Oak Ridge and Trails End Lane and connector pipe screen units (CPS) on Palmyra Avenue.
The project collects drainage from 263 acres of land, including commercial businesses, bus stop locations, light manufacturing, industrial manufacturing, recreation open space, multi-family homes, and single-family home sections of Orange. These areas combine to generate potentially significant amounts of leaves, trash, and other debris. To minimize trash and debris on streets and roadways, the City enforces sections of the Orange Municipal Code related to littering and nuisances and its weekly street sweeping program picks up a large amount of trash and debris. However, anything not collected by the street sweepers has the potential to enter the storm drain system and impact the downstream water bodies. The proposed hydrodynamic separator is a Continuous Deflection Separator (CDS) unit and will address this deficiency by capturing trash and debris and other gross pollutants via its trash screens, sediment chambers, and the use of an oil skimmer and hydrocarbon boom filters. The CDS unit will be located on White Oak Ridge. The proposed connector CPS units also help address deficiencies by capturing trash, debris, and other pollutants within each catch basin. CPS units will be installed in 5 catch basins on Palmyra Avenue.
The total project cost is estimated at $785,000, including 20% for construction management and contingency. Upon receipt of public bids, staff will return to the City Council and recommend any funding adjustments and award of contract.
Construction is scheduled to begin in May 2027 and is expected to be completed by July 2027.
Specifications and cost estimates are available for review in the Public Works Department.
7. ENVIRONMENTAL REVIEW
The proposed project is categorically exempt from the provisions of the California Environmental Quality Act (CEQA) per State CEQA Guidelines 15301 (Class 1(c) - Existing Facilities) because the project involves installation of storm water treatment features to the existing storm drain system for purposes of protecting the environment and does not increase system capacity or otherwise expand the existing use. No public review is required.
8. ATTACHMENTS
• Location Maps