Commissioners Proposed “Dark Skies” Ordinance
June 30, 2017 issue- Sangre de Cristo Sentinel
by George Gramlich,
News and Commentary
At a public meeting last week, the three Custer County Commissioners, Bob Kattnig, Jay Printz and Donna Hood, finally revealed their proposed “Dark Skies” or “light pollution” ordinance they have been talking about since the two new Commissioners (Printz and Hood) were sworn in this January. Note that there was barely a mention of it during the campaign last year.
The Commissioners’ proposal wants to amend the Custer County Zoning Regulation of 2016 to regulate outdoor lighting throughout the county (The Towns of Westcliffe and Silver Cliff have their own zoning laws.) They want to change the current non-enforceable, zoning law definition of “Light Pollution” to “Light Pollution defined as any adverse effect of the use of artificial outdoor lighting at night. See Section 8.2.G and Appendix D.3(p) for further information.”
The new Section 8.2.G reads like this:
“8.2.G: In order to minimize light pollution, all outdoor lighting shall be rated correlated color temperature of 3000 Kelvins or less, and any light source exceeding 500 initial lumens must be fully shielded. A “lumen” is measurement of the brightness of a particular light bulb or lamp. The following is a “lumens to watts” table:”
No need to print the whole table. (See Ordinance Proposal.) The first line is all you need to know. It says a light source of 600 lumens is equivalent to a 40-watt incandescent light (old school light bulb), a 10-watt florescent light and a 5 – 9 LED light. If my math is correct, any incandescent light bulb over 33.3 watts is subject to this ordinance.