Orange County Sanitation District public meetings in 2025
3 substantive meetings from 2025, with official agendas or minutes and plain-English summaries.
Wed Dec 3, 2025 · 5:00 PM
OPERATIONS COMMITTEE
Orange County Sanitation District to vote on $1.75M pipeline inspection contract
The Operations Committee will consider several contracts and plans, including a $1.75 million sonar inspection contract for pipelines, a $509,300 easement for sewer rehabilitation, and adoption of the 2025 Asset Management Plan. The meeting also includes routine approval of past minutes and engineering performance reports.
- $1,750,000 contract with Performance Pipeline Technologies for sonar inspections and pipeline cleanings
- $509,300 temporary construction easement for Santa Ana Trunk Sewer Rehabilitation, Project No. 1-23
- $4,456,235 contingency increase for A-Side Primary Clarifiers Replacement at Plant No. 2
- Adoption of the Orange County Sanitation District 2025 Asset Management Plan
- Approval of 2025-4616 minutes from November 5, 2025 Operations Committee meeting
sanitationinfrastructurecontractspipelinesasset-management
Board Room
🗳️ How they voted (7 roll-call votes)
Named votes as recorded in the official record.
2025-4522 — Approved
9 yea · 5 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez absent · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
2025-4524 — Approved
10 yea · 4 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
2025-4540 — Approved
9 yea · 5 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez absent · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
2025-4611 — Approved
9 yea · 5 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez absent · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
2025-4616 — Approved
9 yea · 5 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez absent · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
2025-4618 — Approved
10 yea · 4 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
2025-4521 — Approved
10 yea · 4 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher absent · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon absent · Tom Lindsey absent · Robert Ooten yea · Jamie Valencia absent · Bonnie Peat yea
Wed Sep 10, 2025 · 5:00 PM
ADMINISTRATION COMMITTEE
Committee to vote on $1.4M HVAC maintenance contract and $120M wastewater refunding
The Orange County Sanitation District Administration Committee will consider several contracts and financial actions, including a $1.4 million HVAC maintenance agreement with Carrier Global Corporation and a $120 million wastewater refunding plan. The committee will also review fleet vehicle replacements totaling $1.49 million and approve minutes from the July 2025 meeting.
- Approve $1.4M HVAC maintenance contract with Carrier Global Corporation (Sourcewell Cooperative Master Agreement No. 080824-CAR)
- Approve $120M Wastewater Refunding Revenue Obligations, Series 2025A
- Approve $1.49M fleet vehicle replacements (FY 2025-26 budget)
- Approve $224,939 network hardware purchase for Plant No. 2 Industrial Control System
- Adopt minutes from July 9, 2025 Administration Committee meeting
wastewaterprocurementfleethvacfinanceinfrastructuresanitation
Board Room
🗳️ How they voted (9 roll-call votes)
Named votes as recorded in the official record.
2025-4372 — Approved
10 yea · 3 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda absent · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4429 — Approved
10 yea · 3 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda absent · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4454 — Approved
10 yea · 3 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda absent · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4467 — Approved
10 yea · 3 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda absent · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4263 — Approved
11 yea · 2 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda yea · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4469 — Approved
11 yea · 2 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda yea · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4457 — Approved
11 yea · 2 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda yea · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4472 — Approved
11 yea · 2 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda yea · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
2025-4473 — Approved
10 yea · 3 absent
Jon Dumitru yea · Ryan Gallagher absent · Glenn Grandis absent · Christine Marick yea · Jose Medrano yea · Jordan Nefulda absent · Andrew Nguyen yea · David Shawver yea · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea · Kathleen Treseder (Alternate) yea
Wed May 28, 2025 · 6:00 PM
BOARD OF DIRECTORS
Board to vote on $696,726 centrifuge upgrade and $290,000 ocean monitoring contract
The Orange County Sanitation District Board of Directors will meet to decide on contracts totaling over $2 million, including equipment upgrades at Plant No. 1 and a scientific monitoring agreement with Scripps Institution of Oceanography. The board will also consider adopting a new debt policy and receive reports on employee retention and financial performance.
- Approve $696,726 sole-source contract for centrifuge isolators at Plant No. 1
- Approve $290,000 sole-source contract with UC San Diego for ocean acidification monitoring
- Adopt new debt policy via Resolution OC SAN 25-02
- Approve $633,000 elevator rehabilitation contract at Plant No. 1
- Approve $224,594 safety shower inspection contract despite protest from Zeco, Inc.
sanitationcontractscapital-projectsfinanceocean-monitoringemployee-retentiondebt-policy
Board Room
🗳️ How they voted (18 roll-call votes)
Named votes as recorded in the official record.
2025-4255 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4291 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4292 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4293 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4299 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4310 — Adopted
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4309 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4308 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4307 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4306 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4305 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4304 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4303 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4301 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4300 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4297 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4302 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea
2025-4295 — Approved
24 yea · 1 absent
Joyce Ahn yea · Debbie Baker yea · Pat Burns yea · Doug Chaffee yea · Jon Dumitru yea · Ryan Gallagher yea · Glenn Grandis yea · Johnathan Ryan Hernandez yea · Stephanie Klopfenstein yea · Lisa Landau yea · Carlos Leon yea · Tom Lindsey yea · Melinda Liu yea · Christine Marick yea · Jose Medrano yea · Scott Minikus yea · Jordan Nefulda yea · Andrew Nguyen yea · Robert Ooten yea · David Shawver yea · Jamie Valencia absent · Chad Wanke yea · Erik Weigand yea · John Withers yea · Jordan Wu yea