Hahamongna is that 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 original settlers of the region were sometimes called the Hahamongna Indians. The word means "Flowing Waters, Fruitful Valley" in the native Tongva language.
It's the most precious enviromental zone in our region, but it's under attack again.
November 8, 2017 — The LA County Board of Supervisors by a unanimous vote yesterday substanially modified and reduced the Flood Control District's Big Dig program for Hahamongna Watershed Park.
Besides reducing the size and negative impacts of the program, there were additional commitments made to support ecosystem restoration and water conservation in the Arroyo Seco. The vote represents a significant step forward toward Saving Hahamongna.
The County Flood Control District released their revisions to the Final Environmental Impact Report for their Big Dig mining and trucking operation in Hahamongna on July 24th. They have made some minor concessions, but the worst parts of their program are still there: 1) its too big; 2) too fast; and 3) too destructive to habitat, our air quality, traffic and neighborhoods.
There review period for public comments has now closed. Some excellent analysis of the defects of the EIR and its revision was submitted by agencies and concerned citizens. Now the Flood Control District has to review and respond to those comments and submit their program to the LA County Board of Supervisors for a new approval.
The ultimate decision on the fate of Hahamongna will be made by the County Board of Supervisors, which must act to certify that the entire EIR is in compliance with the California Environmental Quality Act (CEQA). This is the time for those who care about Hahamongna to speak with a loud voice telling the Supervisors to Save Hahamongna and ensure that the sediment removal program is reshaped along more sustainable and environmentally-sensitive lines.
150,000 double-bed, diesel belching monsters, clogging streets, creating noise, dust, pollution, destroying precious habitat and severely impacting our neighborhoods
Now that there's a new Board of Supervisors who are more progressive and environmentally oriented, it time for them to take a new look at the Flood Control District's devastating plan for Hahamongna and at the unchecked power of the Flood Control District.