AWARD OF THE GREENVILLE-BANNING
CHANNEL HYDRODYNAMIC SEPARATOR
INSTALLATION PROJECT, NO. 25-02
CITY COUNCIL MEETING
FEBRUARY 4, 2025
2 OCTA’s ECP TIER 1 GRANT PROGRAM
• On May 2010, the Orange County Transportation
Authority (OCTA) Board of Directors approved funding
for the Measure M2 Project X Environmental Cleanup
Program (ECP).
• Tier 1 ECP Grant Program is designed to mitigate the
more visible forms of pollutants, such as litter and
debris, which collect on roadways and in storm drain
catch basins prior to being deposited in waterways and
in the ocean.
• The City applied for and was awarded a Tier 1 ECP
grant in 2023 in the amount of $500,000 for this
Greenville-Banning Channel HDS Installation Project.
BACKGROUND AND
OVERVIEW
• The hydrodynamic separator (HDS) is a
trash capture system and stormwater
quality improvement device that uses
cyclonic separation to remove and
separate debris from inflowing stormwater.
• This device is specifically designed to be
connected to storm drains as “flow-
through” structures with sediment and
debris being separated through
gravitational settlement.
VIDEO
After it Rains . . .
How it Should be . . .
6 SITE LOCATION
7 PROPOSED DESIGN
8 PROJECT OVERVIEW
• Bid Opening: November 12, 2024
• Lowest Bidder: Zusser Company (Los Angeles, California) • Bid Amount: $811,750
• Zusser has completed similar projects such as:
• Barnes Park Stormwater Capture Project (Baldwin Park) • West Hollywood Western Basin Diversion (L.A. County Public Works) • John Anson Ford Park Infiltration Cistern (Bell Gardens)
PROJECT FUNDING SUMMARY
• Contract Amount: $811,750
• Contingency Amount (10%): $81,175
• Funding:
• OCTA Tier 1 ECP Grant (Measure M2): $500,000
• Drainage Fund (209) [OCTA Match]: $125,000
• Westside Storm Drain Improvements Project: $271,000
10 RECOMMENDATIONS
• Make a finding of California Environmental Quality Act (CEQA) categorical exemption pursuant to CEQA Guidelines Section 15301 and adopt plans, specifications, and working details for the Greenville-Banning Channel Hydrodynamic Separator (HDS) Installation Project, City Project No. 25-02. • Award a Public Works Agreement (PWA) for construction to the Zusser Company, Inc., 528 Palisades Drive, Suite 504, Los Angeles, California 90272 in the amount of $811,750 (base bid and additive bid) and authorize an additional ten percent (10%) contingency, in the amount of $81,175 for construction, as needed, for any unforeseen costs related to this project.
• Authorize the City Manager and City Clerk to execute the PWA with the Zusser Company, Inc., and future amendments to the agreements within Council authorized limits.
• Authorize $270,280 from the Westside Storm Drain Improvements Project (550022) to supplement the remaining costs of this project. ````
QUESTIONS?
From: GREEN, BRENDA
To: TERAN, STACY
Subject: FW: Agenda review questions
Date: Tuesday, February 4, 2025 1:49:41 PM
Attachments: HDS Slide.jpg
Design (HDS).jpg
Brenda Green
City Clerk
City of Costa Mesa
714/754-5221
From: SETHURAMAN, RAJA <[email protected]> Sent: Tuesday, February 4, 2025 1:38 PM
To: PETTIS, JEFF <[email protected]>
Cc: FARRELL HARRISON, LORI ANN <[email protected]>; GREEN, BRENDA <[email protected]>; Kimberly Hall Barlow - City Attorney <[email protected]>; GALLARDO DALY, CECILIA <[email protected]> Subject: RE: Agenda review questions
Council Member Pettis:
Thank you for your email with questions on few of the agenda items. Please see the below email for the responses (in blue text). Please let me know if you have further questions.
Raja Sethuraman
Public Works Director
City of Costa Mesa
714-754-5343
From: PETTIS, JEFF <[email protected]
>
Sent: Tuesday, February 4, 2025 9:10 AM
To: FARRELL HARRISON, LORI ANN <[email protected]> Subject: Agenda review questions
Good Morning Lori Ann,
I sincerely apologize for needing to miss our 2 p.m. agenda review today. I wanted to pass along the questions I planned on asking you during the council meeting this evening.
I am pulling 2 Consent Calendar items because I had a couple questions for each: I am also asking a couple questions on the New Business item, Hydrodynamic Separator.
Consent Calendar item # 6; Accept the LED Light Projects:
What is the anticipated savings in terms of energy costs and maintenance costs over five years? The anticipated savings in terms of energy and maintenance costs is 50% to 85% over typical High Intensity Discharge lighting. This includes a 25-year warranty that includes all parts and labor.
Jack Hammett showed an anticipated savings of $615,300 in energy and maintenance costs and a reduction of 761 tons of CO2 emissions over the 25 years.
TeWinkle Athletic Complex showed an anticipated savings of $397,576 in energy and maintenance costs and a reduction of 669 tons of CO2 emissions over the 25 years.
Musco was not able to provide similar data for the Tennis Center or Bark Park as they did not have historical data on use as these were not Musco Systems. The new lighting system is expected to generate similar savings in the range of 50 – 75% compared to old system.
Other benefits would include appropriate lighting levels for sports play and improved safety.
Consent Calendar item # 7; batting cages:
What are the estimated installation costs and timeline? The estimated installation costs of batting cages will be $60,000-$65,000.
Staff will work with the user groups with regards to timeline. The work could theoretically start within the next two months or, if preferred, at the next maintenance closure in July. The goal would be to minimize impact to the user groups.
Does this athletic complex generate revenue, and if so, will this installation increase this revenue? This complex generates minimal revenue as the majority of user groups fall into a group 1 – no fee classification. The minimal revenue comes from any user group 3 and up that gets charged fees. In FY 23/24 revenue was just over $10,000. The anticipated increase in revenue due to batting cages is expected to be minimal.
New Business, Hydrodynamic Separator (HDS):
What is the estimated installation cost and timeline?
The total project including Installation cost is $811,750 (not counting 10% contingency). The HDS unit is approximately $255,000.
Timeline is about 4 to 5 months. Staff anticipates start of construction around April and completed by this summer.
Ask—Please provide a site plan or location and one or two images of the design.
This will be included the staff presentation as this is New Business item. However, please see attached for location of the HDS unit and design. It will at the western edge of the golf course.
Thank You,
Jeff