Hahamongna is the rare spot in the Arroyo Seco at the foot of the San Gabriel Mountains where the mountainous watershed meets the urban plain. Periodically floods roar into this basin. Bounded on the north by the mountains and Jet Propulsion Laboratory and on the south by Devil's Gate Dam, Hahamongna contains five unique habitat zones that only exist in alluvial canyons near the mountains. Most sites like this in Southern California have been destroyed.

Don't let Hahamongna go the way of other lost environmental treasures in Southern California.


The Meaning of Hahamongna

The original settlers of the region were sometimes called the Hahamongna Indians. The word means "Flowing Waters, Fruitful Valley" in the native Tongva language.

Here's the Official County Extension Notice:

Devil’s Gate Reservoir Sediment Removal and Management Project

Draft EIR Comments To Be Accepted Through January 21, 2014

Due to the high volume of content in the Devil’s Gate Reservoir Sediment Removal and Management Project Draft EIR and requests for additional time to review the document, we will now be accepting comments for an additional 15 days, 90 days in total, through Tuesday, January 21, 2014.

If you have not done so already, comments emailed to reservoircleanouts@dpw.lacounty.gov, mailed, or faxed to LA County Public Works will be included in the official Response to Comments Log that will be attached to the Final EIR.

Please check out the project website at http://www.LASedimentManagement.com/DevilsGate

MailEmailFax

County of Los Angeles
Department of Public Works
Water Resources Division
Attn: Reservoir Cleanouts Program
P.O. Box 1460
Alhambra, CA 91802-1460

reservoircleanouts@dpw.lacounty.gov

(626) 979-5436