Water Restrictions: Altadena vs Castaic
How do water restrictions rules compare between Altadena, CA and Castaic, CA?
Altadena and Castaic have similar restriction levels.
Altadena, CA
Los Angeles County
Outdoor watering in Altadena (served by Lincoln Avenue Water Co., Las Flores Water Co., Rubio Cañon, and Kinneloa Irrigation District) is limited to 2 days per week assigned by address — typically Mon/Thu odd, Tue/Fri even — with 10-minute-per-zone caps.
View full Altadena rules →Castaic, CA
Los Angeles County
Water use in unincorporated LA County is governed by various water districts and state conservation mandates. LADWP and other districts impose watering schedules during drought. AB 1572 bans irrigating non-functional turf with potable water for commercial properties.
View full Castaic rules →Key Facts Comparison
| Fact | Altadena | Castaic |
|---|---|---|
| Watering Days | 2/week by address | Set by local water district |
| Odd Address | Mon/Thu | - |
| Even Address | Tue/Fri | - |
| Hand Watering Cap | 10 min/zone | - |
| Authority | SWRCB CCR Title 23 §§996–997 | - |
| Water Districts | - | Multiple serve unincorporated areas |
| AB 1572 | - | Commercial turf ban |
| Drought Orders | - | State may impose emergency cuts |
Highlighted rows indicate differences between cities.
Altadena FAQ
Which days can I water my Altadena lawn?
Two days a week assigned by address: odd-numbered Mon/Thu, even-numbered Tue/Fri. Drip irrigation is exempt from the day restriction.
Castaic FAQ
What are the watering restrictions in unincorporated LA County?
Restrictions vary by water district but commonly include: no watering 9 AM-4 PM, limited watering days (2-3 per week), no runoff, and no hosing hard surfaces. Check with your specific water provider for current rules.
How do I find my water district?
LA County unincorporated areas are served by dozens of providers. Check your water bill or use the State Water Resources Control Board's water system locator at waterboards.ca.gov. You can also contact LA County Public Works at (626) 458-5100.
Are there rebates for water-efficient landscaping?
Yes. Most water districts offer rebates for turf replacement ($1-$3/sq ft), weather-based irrigation controllers ($80-$200), and high-efficiency sprinklers. Contact your water provider or visit bewaterwise.com for regional programs.
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