Graywater · California

City of Petaluma Laundry-to-Landscape Greywater Rebate

Run by City of Petaluma Water Conservation

OpenPlan requiredLast checked October 17, 2026
What you get
Up to $125 (cannot exceed the cost of materials; labor, tax and delivery excluded)
Maximum
$125 per household
Who qualifies
Active Petaluma water customer; single-family or duplex residential site; property owner or renter with written owner consent; working clothes washer on site; one rebate per household/water account.
Where
Active Petaluma water customers at single-family or duplex homes; renters need written owner consent.
Status
Open. First come first served, subject to availability of funds; page shows no end date.
Type of payment
Rebate
Official program page

What you do

Install a gravity-fed laundry-to-landscape greywater system that sends clothes washer rinse water to mulch basins around trees, shrubs and vines.

Requirements

  • Gravity-fed only: no filters, tanks, pumps, potable water connection or connection to spray irrigation
  • Mulch basins required, sized to prevent runoff and pooling; replenish mulch every 3-5 years
  • Not suitable for lawns, potted plants, raised beds, edible gardens
  • 3-way diverter valve with auto vent at least 6 inches above washer flood rim, labeled
  • Distribute at least 18 in from property line, 2 ft from buildings, 50 ft from septic, 100 ft from wells/waterways
  • Pre-approval before installing
  • Install and contact Water Conservation within 120 days of pre-approval
  • Legible itemized receipts and photos of finished project
  • Annual self-monitoring report
  • City may inspect before or after payment

The plan or design it asks for

Pre-inspection questionnaire with required photos of the washer and proposed landscape area, submitted before installation.

Make the plan in Sow

Draw the layout and build the plant list

Sow places plants on a photo of your yard and keeps a list of everything you add. Check City of Petaluma's rules for exactly what to submit.

Start a plan in Sow

How to apply

  1. 1Download the fillable pre-inspection questionnaire and submit it with required photos by email or mail to City of Petaluma Water Conservation, 202 North McDowell Blvd, Petaluma, CA 94954
  2. 2Staff respond within two weeks on qualification
  3. 3Do not install until pre-approved; install within 120 days keeping receipts
  4. 4Call Water Conservation at (707) 778-4507 within 120 days for post-inspection
  5. 5After approval, send itemized receipts and photos (mulch basins, washer, diverter valve)
  6. 6Receive mailed rebate
  7. 7Submit yearly self-monitoring report

Timing and deadlines

Pre-approval response within 2 weeks; payment mailed 6-8 weeks after approval

120 days from pre-approval to complete

Combining it with other programs

not published

Sources

Last checked October 17, 2026. See something out of date? Tell us.

Sow is not affiliated with any of these agencies or utilities. Amounts and rules change, often at the start of a fiscal year, so confirm the details on the official page before you start a project. How we research these programs