# Water Treatment Bids & RFPs in California (5 Open)

As of Oct 23, 2026, BidRover lists 5 open water treatment bids and RFPs in California, 1 of them posted in the last 7 days, collected from official government procurement sources. Every listing shows its title, category, region and deadline free; a free account adds weekly email alerts for new water treatment bids.

Water treatment plant projects, chemicals, filtration and operations for public water utilities.

- Open bids: 5
- New this week: 1
- Newest posted: Oct 21, 2026

## Open bids (page 1 of 1)

- [Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility](https://bidrover.com/bids/purified-water-replenishment-san-jacinto-valley-advanced-water-purification-faci--d1a5d5d4-9af4-4bc7-84f1-e0d74caee4bd) — Construction & facilities · California, United States · Due Nov 19, 2026
- [C26863016 HEARST SAN SIMEON SHM - Reservoir #3 Water Treatment Plant Upgrade](https://bidrover.com/bids/c26863016-hearst-san-simeon-shm-reservoir-3-water-treatment-plant-upgrade--393ac853-7129-42b2-b378-bd70650046f2) — Environmental & energy · California, United States · Due Oct 23, 2026
- [Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility](https://bidrover.com/bids/purified-water-replenishment-san-jacinto-valley-advanced-water-purification-faci--d6cbb1ef-218f-4abc-a2d1-9fed65e25db6) — Construction & facilities · California, United States · Due Nov 19, 2026
- [Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility Specification No. 1472W](https://bidrover.com/bids/purified-water-replenishment-san-jacinto-valley-advanced-water-purification-faci--0e381636-69d2-40ff-be46-0de050e640e1) — Construction & facilities · California, United States · Due Nov 17, 2026
- [Purified Water Replenishment San Jacinto Valley Advanced Water Purification Facility in CA](https://bidrover.com/bids/purified-water-replenishment-san-jacinto-valley-advanced-water-purification-faci--2f00f9e4-a0e2-4a82-b9b8-61e8f5223775) — Construction & facilities · California, United States · Due Nov 17, 2026

## Frequently asked questions

### How many open water treatment bids in California are there?

BidRover lists 5 open water treatment bids in California; the newest was posted on Oct 21, 2026, and 1 were added in the last 7 days. The list is refreshed from official public sources every hour.

### What do public buyers purchase under water treatment?

Water treatment plant projects, chemicals, filtration and operations for public water utilities. BidRover matches notices to this topic by the words in their titles.

### Can I see water treatment bids in California for free?

Yes. Each open bid's title, category, region and deadline date is free with no account, and a free account gets weekly email alerts. The Team plan ($19/mo) adds the buyer, source link, notice ID, documents, match scores and daily alerts.

### How do I get alerts for new water treatment bids in California?

Use "Email me new bids" on this page. Free accounts get a weekly email with the basics; Team sends daily alerts with match scores, buyer and the source link.

## Water Treatment bids elsewhere

- [Water Treatment in New York](https://bidrover.com/bids/topic/water-treatment/state/new-york) — 5 open
- [Water Treatment in United States](https://bidrover.com/bids/topic/water-treatment/country/united-states) — 22 open

## Related topics

- [Hazardous Waste in California](https://bidrover.com/bids/topic/hazardous-waste/state/california) — 12 open
- [Wastewater in California](https://bidrover.com/bids/topic/wastewater/state/california) — 10 open
- [Conservation & Natural Resources in California](https://bidrover.com/bids/topic/conservation/state/california) — 7 open
- [Environmental Remediation in California](https://bidrover.com/bids/topic/environmental-remediation/state/california) — 7 open
- [Waste Management in California](https://bidrover.com/bids/topic/waste-management/state/california) — 7 open
- [Recycling in California](https://bidrover.com/bids/topic/recycling/state/california) — 6 open
- [Broadband in California](https://bidrover.com/bids/topic/broadband/state/california) — 50 open
- [Telecommunications in California](https://bidrover.com/bids/topic/telecommunications/state/california) — 21 open
- [HVAC in California](https://bidrover.com/bids/topic/hvac/state/california) — 19 open
- [Consulting in California](https://bidrover.com/bids/topic/consulting/state/california) — 17 open

- [All California bids](https://bidrover.com/bids/state/california)
- [Water Treatment bids everywhere](https://bidrover.com/bids/topic/water-treatment) — 34 open
- [All bid topics](https://bidrover.com/bids/topics)

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BidRover lists bids from official public sources. It is not an issuing authority; confirm requirements, amendments and submission instructions in the official notice before responding.