District IV Supervisor Karen Mitchoff

Hello and welcome to the District IV website! As your County Supervisor, I was elected to serve the diverse communities of Clayton, Concord, Pleasant Hill, part of Walnut Creek, and the unincorporated Contra Costa Centre.

We live in an ever-evolving economy with constant change in community needs, and serving constituents in District IV is my #1 Priority. I encourage you to contact me directly with any questions or concerns you might have.

I look forward to seeing you around the community!

Karen Mitchoff

                 What's Happening Around District IV


Asian Citrus Psyllid PH2017
Treatment Plans Against The Asian Citrus Psyllid Detected In Your Neighborhood

Wednesday, March 22, 2017
5:30PM - 7:00PM
Pleasant Hill Community Center
Soroptimist Room
320 Civic Drive, Pleasant Hill, CA 94523

The Asian citrus psyllid (ACP), a serious insect pest in California, has been detected in your neighborhood.  The ACP is a tiny, flying insect that transmits a bacterial disease called huanglongbing (HLB) to citrus trees.  Trees infected with the HLB disease produce bitter and misshapen fruit.  The HLB disease is fatal to citrus trees.  The ACP is a threat to California’s backyard and commercially grown citrus.  Emergency treatment and quarantine action is needed to protect California from the negative economic and environmental impacts the establishment of this pest throughout California would cause.

To inform you of planned activities, residents of the affected area are invited to attend an open house meeting on Wednesday,  it will be staffed by cooperating agency officials familiar with this program who will be able to individually address your concerns and answer any questions.  If you cannot attend this important meeting and require additional information, please contact our toll-free PEST HOTLINE at (800) 491-1899 for further assistance.  

MTR road work

Update as of March 20, 2017

PG&E Crews Working in Slide Area Today

Look for PG&E crews that are working in the slide area today clearing branches from last week's tree trimming. The Vegetation Management Team's work should not impact pedestrian traffic or impede activities in the closed roadway. Logs that remain on the hillside will be positioned in such a way that they will not move or roll down the hill. 

Sign up for
real-time updates via text or email on Morgan Territory Road closure here

For residents of Morgan Territory Road that may have questions about this closure, you can  reach my office at (925) 521-7100 or call the following numbers to reach the Contra Costa Public Works Department and Contra Costa Water District: 


Carrie Ricci
Contra Costa Public Works

W: (925) 313-2235 


Brian Balbas
Contra Costa Public Works

W: (925) 313-2284

Jennifer Allen, Director of Public Affairs
Contra Costa Water District
W: (925) 688-8041 C: (925) 297-9739

Floods - Be Prepared

The Board of Supervisors adopted a new resolution to proclaim a local emergency arising out of the damage caused by the series of storms in January and February 2017. This allows the County to potentially seek funding relief for response and damage repairs for emergency responses to the continuing storms during this time period.

With more rain expected, this is a good time to prepare for the next wave, checking rain gutters and storm drains for blockage. If you're concerned about potential flooding at your home or business, it's not too late to visit one of the sandbag stations located throughout the county. Please note that you'll need to bring a shovel, but bags and sand are available for free. Find out details regarding County sandbag sites at www.cccounty.us/sandbags.  

Click here for more tips on preparing for winter storms:

Important phone numbers:

Public Works Maintenance Division
For emergencies during normal business hours: 
(925) 313-7000 

California Highway Patrol
For emergencies after hours: 
(707) 551-4100

Contra Costa County Sheriffs Dispatch
For emergencies after hours:
(925) 646-2441

Temporary Parking Changes at
Concord BART Station

BART Parking Concord 2017

As part of the Plaza improvements at the Concord BART Station, BART will need to temporarily close some Fee and relocate some Permit parking spaces at the station in two Phases. Signs will be posted 72 hours in advance of removing/relocate spaces.

Phase I (March 2017 to October 2017) will require closing off approximately 115 parking spaces in the Fee lot north of the station near Park and Grant streets. This will require the relocation of the Carpool Permit spaces. Please follow the signs (and see map) for the new Carpool Permit spaces south of the station in the lot nearest Oakland Street. This will be the new permanent Carpool parking location.

Phase II (October 2017 to February 2018) will require relocating approximately 57 Permit (Reserved) parking spaces from the current lot between Prospect and Atlantic St. to a nearby Fee lot between Prospect and Laguna streets. There will be no loss of Permit spaces. The relocated spaces will remain Permit parking after construction is finished and the current Permit spaces reopen which will add 50+ new Permit spaces.

The Plaza improvements will result in better lighting, easier access to the BART station, and improved overall appearance, with better access to downtown as well.

There will be signs and BART personnel present to assist when the temporary space closures/relocations take place. During construction, pedestrian access in and around the station may change periodically. Please proceed around construction areas with caution and watch for signs with safety information and other notices.

Redefining Mobility Summit 2017