Dark Sky Rules: Mead Valley vs Murrieta
How do dark sky rules rules compare between Mead Valley, CA and Murrieta, CA?
Mead Valley and Murrieta have similar restriction levels.
Mead Valley, CA
Riverside County
Riverside County Ordinance No. 655 restricts outdoor lighting to protect Palomar Observatory. It defines Zone A (within 15 miles of the observatory) and Zone B (15-45 miles). Many lamp types must be low-pressure sodium or fully shielded, and decorative and certain other lighting must be off between 11:00 p.m. and sunrise.
View full Mead Valley rules →Murrieta, CA
Riverside County
Murrieta lies within the Mount Palomar light-pollution protection zone under Riverside County Ordinance 655, which restricts outdoor lighting types, shielding, and late-night operation.
View full Murrieta rules →Key Facts Comparison
| Fact | Mead Valley | Murrieta |
|---|---|---|
| Governing ordinance | Riverside County Ord. No. 655 (light pollution) | - |
| Zone A | Within 15-mile radius of Palomar Observatory (Sec. 4.H) | - |
| Zone B | 15-45 miles from the observatory (Sec. 4.I) | - |
| Preferred lamp | Low-pressure sodium; many other lamps must be fully shielded | - |
| Curfew | Class I & III lighting off 11:00 p.m. to sunrise (Sec. 8) | - |
| Exemptions | Pre-existing fixtures, holiday lights; temp permits ~45 days/yr (Sec. 9-10) | - |
| - | - |
Highlighted rows indicate differences between cities.
Mead Valley FAQ
Why does Riverside County restrict outdoor lighting?
Ordinance 655 protects night-sky observation at Palomar Observatory. It limits light that escapes upward, favoring low-pressure sodium lamps and shielded fixtures within 45 miles of the observatory (Zones A and B).
Do I have to turn off my decorative lights at night?
Yes. Class III decorative lighting and Class I general lighting must be off between 11:00 p.m. and sunrise (Sec. 8), with limited exceptions. Class II parking/security lighting may remain on all night.
Murrieta FAQ
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