Water Infrastructure Grants in California
As of October 27, 2026, FundingLandscape lists 30+ water infrastructure grants in California as open. Check the official notices for current details. Of the 8 with a fixed deadline, 2 close within 30 days. Among the 25 that publish an award ceiling, the median is $3M. Where eligibility is stated (22 of 30), the most common applicants are state & local governments, tribal governments & organizations, and nonprofits.
Updated daily. Listings past their deadline are removed; confirm details on the funder page.
Each listing opens a detail page with a link to its official source.
Open Water Infrastructure Opportunities in California
- DARRP Restoration Implementation Grants (2026)
DOC NOAA - ERA Production · Deadline: Nov 18, 2026 · Up to $100,000,000
- Native American Affairs: Fiscal Year 2025 Colorado River Basin Tribal Drought Resiliency Program
Bureau of Reclamation · Deadline: Nov 20, 2026 · Up to $1,000,000
- F26AS00085 Aquatic Invasive Species Interjurisdictional Grants to the Great Lakes States and Tribes - Fiscal Year 2026 Great Lakes Restoration Initiative
Fish and Wildlife Service · Deadline: Dec 31, 2026 · Up to $923,809
- F26AS00105 National Fish Passage Program
Fish and Wildlife Service · Deadline: Apr 30, 2027
- Title XVI Water Reclamation and Reuse Projects
Bureau of Reclamation · Deadline: Aug 26, 2027 · Up to $40,000,000
- WaterSMART Enhancing Water Resources Projects
Bureau of Reclamation · Deadline: Sep 8, 2027 · Up to $3,000,000
- WaterSMART Cooperative Watershed Management Program
Bureau of Reclamation · Deadline: Feb 15, 2028 · Up to $300,000
- Proposition 4 – Water Recycling
State Water Resources Control Board · Deadline: Jun 30, 2030 · Up to $15,000,000
- Proposition 1
Coachella Valley Mountains Conservancy
- Cleanup, Remediation, and Watershed Enhancement Funding Opportunity
Department of Fish and Wildlife
- Oak Woodlands Conservation
Wildlife Conservation Board · Up to $2,000,000
- Restoration Grant Program
California Department of Fish and Wildlife
- Proposition 68 Regionwide Grants
San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy · Up to $206,150
- Urban Streams Restoration Program
Department of Water Resources · Up to $20,562,000
- Coachella Valley Mountains Conservancy Proposition 4 Nature Based Solutions and Climate Adaptation Grant Program
Coachella Valley Mountains Conservancy · Up to $11,000,000
- Wildlife Corridor and Fish Passage
Wildlife Conservation Board · Up to $10,000,000
- Forest Conservation
Wildlife Conservation Board · Up to $10,000,000
- Proposition 1 Lower Los Angeles River Grants
San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy · Up to $2,000,000
- Proposition 1 Regionwide Grants
San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy · Up to $1,000,000
- Proposition 13 – Water Recycling – Planning Grant
State Water Resources Control Board · Up to $300,000
- Clean Water State Revolving Fund (CWSRF) Program
State Water Resources Control Board
- Proposition 4 Grant Program
Tahoe Conservancy · Up to $13,000,000
- Habitat Enhancement and Restoration
Wildlife Conservation Board · Up to $10,000,000
- Proposition 4 – Wildfire and Forest Resilience
San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy · Up to $2,000,000
- Wildfire Prevention Grant Program
San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy · Up to $2,000,000
- Proposition 68 – Water Recycling
State Water Resources Control Board · Up to $3,000,000
- Proposition 1 – Water Recycling
State Water Resources Control Board · Up to $4,602,466
- Stream Flow Enhancement
Wildlife Conservation Board · Up to $30,000,000
- Inland Wetlands Conservation
Wildlife Conservation Board · Up to $8,000,000
- Drinking Water State Revolving Fund (DWSRF) Planning
State Water Resources Control Board · Up to $500,000
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