Water Restrictions: Altadena vs Carson
How do water restrictions rules compare between Altadena, CA and Carson, CA?
Altadena has fewer restrictions than Carson.
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 →Carson, CA
Los Angeles County
Carson is served primarily by Cal Water (California Water Service) Hermosa-Redondo / Dominguez districts and Golden State Water, all of which enforce statewide water-waste prohibitions under SWRCB Resolution and CCR Title 23 §§963–967. New and rehabilitated landscapes ≥500 sq ft must comply with the Model Water Efficient Landscape Ordinance (MWELO, CCR Title 23 §§490–495).
View full Carson rules →Key Facts Comparison
| Fact | Altadena | Carson |
|---|---|---|
| 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 | - |
| Statewide rules | - | CCR Title 23 §967 (water-waste prohibitions, permanent) |
| Landscape standard | - | MWELO — CCR Title 23 §§490–495, applies to ≥500 sq ft new/rehab |
| Water providers | - | Cal Water + Golden State Water serve Carson |
| Max fine | - | $500/day for water-waste violations |
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.
Carson FAQ
Are there day-of-week watering restrictions in Carson?
Watering schedules are set by the water purveyor (Cal Water or Golden State Water) under SWRCB drought stages, not by Carson Municipal Code. Check your bill insert or utility website for current stage.
Does MWELO apply to my home landscape remodel?
Yes — any new or rehabilitated landscape ≥500 sq ft (including residential) on a project requiring a permit must submit a MWELO Landscape Documentation Package.
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