Walnut Creek, CA Landscaping Rules: Water Restrictions (2026)
Water restrictions in Walnut Creek, CA, also called the watering schedule, outdoor irrigation rules, or drought ordinance, set which days and hours you can run sprinklers or irrigation.
Key Facts
- Requirement
- No runoff, no hosing hardscape, no watering within 48 hrs of rain (permanent)
- Requirement
- EBMUD serves most of Walnut Creek; CCWD some areas
- Requirement
- Typical no-water hours: 9 AM to 6 PM during warm months
- Requirement
- MWELO applies to new landscapes >500 sq ft
- Requirement
- Drought-era fines $50–$500; flow restrictors for repeat offenders
Summary
Walnut Creek is served by East Bay Municipal Utility District (EBMUD) and Contra Costa Water District (CCWD), both of which enforce permanent statewide water waste prohibitions plus district-specific watering schedules. Outdoor irrigation runoff, hosing hard surfaces, and watering within 48 hours of rain are always prohibited.
Model Water Efficient Landscape Ordinance Model Water Efficient Landscape Ordinance Low water using plants, mulch, and efficient irrigation save water while making habitat for pollinators. DWR/2015 About 40% of the water Californians use at home is used outdoors. Large water savings can be gained by efficient landscape design, installation, management, and maintenance. This is accomplished by choosing climate adapted plants, improving soil conditions, using, and maintaining high efficiency irrigation equipment and managing the irrigation schedule to fit the plants water needs as they are influenced by local climate.
Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.
Full Breakdown
The State Water Resources Control Board adopted permanent prohibitions on wasteful water use that apply in Walnut Creek year-round: no runoff from irrigation onto sidewalks or streets; no hosing down driveways, sidewalks, or patios (except for health/safety); no washing vehicles without a shut-off nozzle; no watering within 48 hours of measurable rainfall; and no irrigating non-functional turf at commercial, industrial, and institutional sites. EBMUD customers (most of Walnut Creek) follow additional watering schedules announced seasonally, typically odd-even address schedules during drought and limits on watering during daylight heat hours (generally no irrigation between 9 AM and 6 PM).
CCWD customers follow similar district rules. , 15–25% reductions) with excessive-use penalties. First-violation warnings are common; repeat offenses can result in fines of $50–$500 and flow-restrictor installation for chronic offenders. EBMUD offers WaterSmart rebates for lawn replacement, smart controllers, and high-efficiency irrigation. New landscaping over 500 sq ft must comply with California's Model Water Efficient Landscape Ordinance (MWELO) including water budget calculations, smart controllers, and drip irrigation for non-turf areas.
Frequently Asked Questions
Can I wash my car in my driveway?
What days can I water my lawn?
Sources & Official References
Other rules in Walnut Creek
How Walnut Creek compares: Cities with the Strictest Water Restrictions·California rules heatmap·Compare Walnut Creek to another location·View the California landscaping rules overview
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Water Restrictions in Nearby Cities
How other cities in Contra Costa County handle water restrictions.