Water Restrictions: Rialto vs San Bernardino
How do water restrictions rules compare between Rialto, CA and San Bernardino, CA?
Rialto and San Bernardino have similar restriction levels.
Rialto, CA
San Bernardino County
Rialto Water Services enforces year-round CA prohibited-use rules and assigned watering days. Under State Water Board Emergency Regulations and city policy, outdoor irrigation is limited to designated days, no runoff, no hose-down of hardscape, and no watering within 48 hours of rain.
View full Rialto rules →San Bernardino, CA
San Bernardino County
San Bernardino Municipal Water Department enforces year-round water waste rules and drought stages. Hosing hardscape is banned, irrigation is limited to set days, and AB 1572 phases out non-functional turf.
View full San Bernardino rules →Key Facts Comparison
| Fact | Rialto | San Bernardino |
|---|---|---|
| Hose-Down Hardscape | Prohibited statewide | - |
| Runoff to Street | Prohibited | - |
| Water After Rain | No watering within 48 hrs | - |
| MWELO Threshold | New landscapes ≥500 sq ft | - |
| Prohibited practices | - | Hosing hardscape, runoff, and non-recirculating fountains banned |
| Watering window | - | Morning and evening only on assigned days |
| AB 1572 | - | Phasing out potable water on non-functional turf at commercial sites |
| MWELO | - | New landscapes need smart controllers, drip, and rain sensors |
| Penalties | - | Warning then escalating fines added to water bill |
Highlighted rows indicate differences between cities.
Rialto FAQ
What days can I water my lawn in Rialto?
Rialto Water Services publishes assigned watering days that change with drought stage (commonly 3 days/week, before 8 AM or after 6 PM). Check rialtowater.com for the current schedule.
Can I wash my car at home?
Yes, but only with a hose equipped with a positive shut-off nozzle, and runoff cannot flow into the street. Washing on dirt/lawn or at a commercial recycled-water car wash is preferred.
San Bernardino FAQ
What days can I water my San Bernardino lawn?
Check your current SBMWD schedule; days are typically assigned by address and limited to early morning and evening to reduce evaporation.
Does AB 1572 apply to my front yard?
AB 1572 targets non-functional turf at commercial, industrial, and institutional sites, plus HOA common areas; single-family yards are not currently covered.
Can I hose off my driveway?
No. Spraying hardscape with potable water is prohibited year-round except for immediate health or safety reasons.
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