Vallejo environmentalist Doug Darling is on a mission to preserve the city's Lake Chabot and its nearby creek.
He has spent seven years chronicling a mess left by Six Flags Discovery Kingdom, which operates on the Lake's shoreline. The amusement park has failed to completely clean up debris that now litter the creek below the lake.
Six Flags previously had structures in the water Discovery Kingdom used as part of their water ski shows. Through the years the structures deteriorated and storms carried them downstream.
The Department of Fish and Wildlife tells NBC Bay Area they have launched an investigation into the matter.
Nancy Chan, Six Flags Discovery Kingdom communications manager, released the following statement in response:
"We are aware of the concerns and working with specialists and local authorities to complete our assessment of the situation and to implement an appropriate remediation plan."
View more in Jodi Hernandez's video report above.
Here's a YouTube video Darling posted regarding the debris and litter.