Vallejo’s hills are slow-soaking clay, and the city fines runoff instead of setting watering hours. We look after lawns, sprinkler and drip systems and landscape lighting here, for a summer that peaks in September and houses older than most in Fairfield or Vacaville.
From the City of Vallejo’s own pages and the Solano County Water Agency’s, its rebate partner.
When can you water in Vallejo?
Any day, any hour. Just not onto the sidewalk.
The city lifted its day-and-time limits and kept its rules against waste. No irrigation runoff onto sidewalks, parking lots or buildings, and none within 48 hours after rain. The city wants leaks stopped within 36 hours of finding them.
City of Vallejo · Checked Sep 2026
What will the city help pay for?
Rebates run through the Solano County Water Agency.
A smart controller: 50% of a WaterSense weather-based controller, up to $300. A lawn swap: $1.50 a square foot, up to $1,500, approved before any lawn comes out.
Solano County Water Agency · Checked Sep 2026
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back from SCWA for 600 sq ft of lawn
100 sq ft2,000 sq ft
$1.50 a sq ft, up to $1,500.
With no clock to work around, the limit is the slope. We plan lawn swaps to SCWA’s terms: drip under the new beds, nothing removed before approval. Our guide, watering rules by city, sets Vallejo beside the towns that do keep hours.
Why does water run off a Vallejo slope before it soaks in?
Clay that drinks slowly, on a hill.
Much of Vallejo is built on hills of clay loam that take water in slowly, while the flats by the river and the strait hold it. Summers are cooler than inland Solano, but the heat here peaks in September, not July.
On a clay bank, one long run ends up in the gutter. So we split slope zones into short cycles with a soak between, fit slower rotary nozzles and move the steepest banks to drip. On the smart controllers we install, run times follow the weather into September. More on how we lay out a system is on the irrigation page.
The City of Vallejo lifted its day-and-time limits and kept its waste rules: no irrigation runoff onto sidewalks, parking lots or buildings, and no outdoor watering within 48 hours after rain. The city also wants leaks stopped within 36 hours of finding them. Checked Sep 2026.
Yes,throughSCWA.
The Solano County Water Agency is the city’s rebate partner: 50% of a WaterSense weather-based controller, up to $300, for a home. Check the model against SCWA’s current list before you buy, and apply with SCWA directly. Checked Sep 2026.
$1.50asqft,upto$1,500.
That’s SCWA’s Water-Efficient Landscape Rebate, for a home. It needs at least 300 square feet, approval before any lawn comes out, drip, bubblers, micro-spray or hand watering, and three inches of mulch. Artificial turf doesn’t qualify. SCWA’s page still labels the program 2025–26, so confirm it’s open. Checked Sep 2026.
Runoffanddrain-down.
Much of Vallejo’s hill ground is clay loam, which takes water in slowly, so long runs sheet downhill, and low heads drain the pipe after the zone shuts off. Short cycles with a soak between, slower nozzles and check valves at the low heads fix it.
Keep the water on the slope.
Quotes are free and come after Carlos sees the property.