Letter to Folsom re Ecological Light Pollution

Subject: Agenda item 8(a) under New Business of the November 27, 2018 City Council Meeting — Bridge Lighting
Date: 11/27/2018 03:11 PM

Dear Mayor Miklos:

The “presentation on the opportunity to light the upstream side the Lake Natoma Crossing Bridge” implies bringing new lighting to Lake Natoma, American River Parkway, and Folsom Lake State Recreation Area.

In a word — DON’T.

Additional night lighting would expand the impact of Ecological Light Pollution to the area.

Theatrical vanity lighting on the bridge is unnecessary and detrimental to the ecology of the area.

The night time environment of Lake Natoma, American River Parkway, and Folsom Lake State Recreation Area should be preserved as much as possible.

Protect, Moderate, Mitigate —

Protect – Protect the night time environment of Lake Natoma, American River Parkway, and Folsom Lake State Recreation Area.

Moderate – Should any additional lighting including the proposed lighting be installed, it must be extremely low level and controlled including time of use.

Mitigate – Should any additional lighting including the proposed lighting be installed, other lighting in the area should be reduced.

This topic provides an opportunity for the City of Folsom to embrace reducing night time lighting impacts on Lake Natoma and on the entire region.

Having studied and advocated for reduction in bridge lighting to protect salmon from the impacts of night lighting, I am concerned that this type of lighting may start a bad trend to light bridges in the Lower American River and other in the region.

Dialog on this topic provides an opportunity to the City of Folsom to consider an Outdoor Lighting ordinance such as the City of Malibu has recently enacted.

As I understand the city is well on it’s way to improved lighting with the adaptation of 3000K color temperature for most of municipal lighting.
The International Dark-Sky Association requires 3000K or below to qualify for its Fixture Seal of Approval. Many cities around the world are implementing 2700K for all lighting.

Regards,

Jack E. Sales

California Section International Dark-Sky Association

cc:
Ernie Sheldon, City Council
Andy Morin, City Council
Kerri Howell, City Council
Roger Gaylord III, City Council
Lynda Konopka, Deputy City Clerk

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