Light Trespass: Corona vs Mead Valley
How do light trespass rules compare between Corona, CA and Mead Valley, CA?
Corona and Mead Valley have similar restriction levels.
Corona, CA
Riverside County
Light from one property that intrudes onto another property in Corona may constitute a nuisance under Municipal Code Chapter 8.12 (Public Nuisances) and Chapter 17.36 (Outdoor Lighting). Spillover exceeding 0.5 foot-candles at residential property lines or causing significant glare into windows is generally enforceable.
View full Corona rules →Mead Valley, CA
Riverside County
Within the Mount Palomar light-pollution zones, Riverside County Ordinance No. 655 limits spill light by requiring fixtures to be fully or partially shielded so light is directed downward. "Fully shielded" means all light is projected below the horizontal; "partially shielded" means at least 90% is. Curfews further limit late-night lighting.
View full Mead Valley rules →Key Facts Comparison
| Fact | Corona | Mead Valley |
|---|---|---|
| - | - | |
| Governing ordinance | - | Riverside County Ord. No. 655 (light pollution) |
| Fully shielded | - | All light below the horizontal plane (Sec. 4.J) |
| Partially shielded | - | At least 90% of light below horizontal (Sec. 4.K) |
| Applies within | - | Zone A (0-15 mi) and Zone B (15-45 mi) of Palomar |
| Curfew | - | Class I & III off 11:00 p.m. to sunrise (Sec. 8) |
| Outside Palomar zones | - | No general numeric trespass cap; nuisance principles apply |
Highlighted rows indicate differences between cities.
Corona FAQ
Mead Valley FAQ
What does "fully shielded" mean for my outdoor light?
Under Ordinance 655 Sec. 4.J, a fully shielded fixture is built so that all of its light is projected below the horizontal plane through the fixture's lowest light-emitting point - meaning no light escapes sideways or upward.
Is there a county rule for a neighbor's light shining on my property?
Within the Palomar light-pollution zones, Ordinance 655's shielding and curfew rules apply. Outside those zones the County has no general numeric trespass standard, and such disputes are usually handled as a private nuisance matter.
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