Altadena, CA Landscaping Rules: Water Restrictions (2026)
Water restrictions in Altadena, 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
- Watering Days
- 2/week by address
- Odd Address
- Mon/Thu
- Even Address
- Tue/Fri
- Hand Watering Cap
- 10 min/zone
- Authority
- SWRCB CCR Title 23 §§996–997
Summary
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.
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Full Breakdown
Most Altadena households are served by small mutual water companies that adopted state-mandated Tier 2 conservation rules under California Water Code 10632.5 and the State Water Resources Control Board's prohibitions (CCR Title 23 §§ 996–997). Outdoor irrigation is limited to 2 assigned days per week: odd-numbered addresses Mon/Thu; even-numbered Tue/Fri; commercial Mon/Fri. Hand-watering caps at 10 minutes per zone. Drip and bucket-fed watering are exempt from day restrictions. Statewide bans on hosing down driveways, washing cars without shutoff nozzles, and runoff-causing irrigation apply year-round.
Violations & Fines
Each water company sets fines, typically $50 first offense, $100–$500 escalating; chronic violators may have flow restrictors installed.
Frequently Asked Questions
Which days can I water my Altadena lawn?
Sources & Official References
Other rules in Altadena
How Altadena compares: Cities with the Strictest Water Restrictions·California rules heatmap·Compare Altadena to another location·View the California landscaping rules overview
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Water Restrictions in Nearby Cities
How other cities in Los Angeles County handle water restrictions.