Bicycling Tours Of Our Service Area


In partnership with Bike Concord, Central San will guide participants along a portion of our wastewater infrastructure following the Iron Horse Trail. Discover what’s happening beneath your wheels!


Sunday, October 15th – 9:30 - 11:30am

Our route Begins at Bike Concord’s Community Bike Shop at Olympic High School - a short bike ride from either Concord or North Concord BART stations. 

Our route ends at Pleasant Hill BART Station - an optional group ride back to Olympic High School will be available.

You can view the full Bike Tour Route Here. Please see our additional information below.

For questions, please contact Ben Lavender at or (925) 335-7723.

Event Information

9:00 am: (Optional) Arrive early and get a bike check-up with the Bike Concord Community Bicycle Shop at Olympic High School.

9:30 am: Participant check-in and tour logistics.

10:00 am: Roll out and tour Central San’s wastewater infrastructure along the Iron Horse Trail. We will ride our bicycles approximately 8 miles through flat city streets and paved local trails – with several stops along the way. View the Full Bike Route Here.

11:30 am: Our route ends at Pleasant Hill BART Station - an optional group ride back to Olympic High School will be available.

Participant Information

Tour Attendees are responsible for providing their own working bicycle and helmet. Participants without a helmet will not be allowed to attend the tour.

Our Tour will involve biking on city streets, and paved local trails for approximately 8 miles, including several stops. The riding is on mostly flat terrain.

Participants should wear comfortable clothing and shoes for biking. Water and extra layers are encouraged as weather can be unpredictable.

Bicycle Information

Bike Concord staff will be onsite to provide a bike check-up prior to the event, starting at 9:00am.

Our Guides include several bike chaperones who can assist with basic bicycle skills, safety, and minor mechanical issues while out on the trail.

Participants will be provided with listening devices while on the tour. This will allow us to communicate while riding down the trail.

Tour Information

Please Arrive at least 15 minutes prior to the tour start time to get checked in. Participants who arrive late may miss the tour departure.

Central San reserves the right to cancel tours. If a tour is canceled, we will notify you at least 24 hours prior to the scheduled tour. 

For Questions and additional information, please contact Ben Lavender at or (925) 335-7723.

Background Information

For 21 miles, the Iron Horse Trail pedestrian and bicycling path follows one of Central San’s sewer lines—nearly the entirety of the flow from the southeastern-most corner of our service area in San Ramon all the way to our treatment plant in Martinez.

This path allows us to take our customers on a bicycling tour of a portion of our sewer service area, highlighting pieces of wastewater infrastructure along the way. This bicycling tour is built upon our Go With The Flow Map, designed to help our customers see (and sometimes hear) the flow of wastewater that follows the Iron Horse Trail throughout Contra Costa County. 

You Can Check Out The Full Map HereGO WITH THE FLOW

In addition to our tour, you can use the interactive map to view prominent access covers, convenient entry points to the trail, and information about what’s happening just below ground! By following the map, you can walk, bike, or run the path of wastewater from your home, school, office, all the way to our treatment plant!