After years of hosting big free-wheeling music events like the Treasure Island Festival and the Second Sky Music Festival, the Port of Oakland has been hit with a cease-and-desist order by the Bay Conservation and Development Commission.

“The staff finally said enough is enough,” said BCDC regulatory director Brad McCrea.

As issue are concerts and festivals produced by private promoters at the port’s Middle Harbor Shoreline Park. The events attract crowds of between 1,000 and 36,000. Renting out the park to promoters brings in from $50,000 to $100,000 a year to the port.

Port spokesman Mike Zampa said the concerts are “a unique way to attract new visitors” to the park.

BCDC officials have repeatedly called out the port on the violations — it is supposed to get the BCDC’s approval to hold any events — but no one took any action until October, when the annual Treasure Island Music Festival raised the hackles of the Save the Bay environmental watchdog group.

“Even a month after the festival, you could still see the damage that was done to the parks landscape and sprinkler system,” said Save the Bay Executive Director David Lewis.

Lewis said there are also concerns that closing down the park for paid events denies West Oakland residents access to one of the area’s few parks.

The 40-acre park was built as part of deal that allowed the port to expand its terminal operations. It was intended for use by West Oakland residents, and while it is part of the Port of Oakland, it is is also overseen by BCDC.

Closing the park for paid events requires the go-ahead from the BCDC, a requirement the port regularly ignored by submitting plans at the last minute or not submitting plans as all.

“The Port of Oakland notifies BCDC about upcoming concerts, but we’ve been remiss in obtaining written approvals,” Zampa said.

Most recently the port rented out the park from June 13 to 18 for the Second Sky Music Festival, which featured G Jones and Madeon.

What impact the cease-and-desist order might have on the All Day I Dream yoga and electronic music festival scheduled for Sept. 28 and the Halloween Music Festival on Oct. 28 remains to be seen.

“How BCDC reacts to future requests depends on the port’s action,” McCrea said.

“We’re implementing controls to make sure we fulfill BCDC’s requirements for all future concerts,” Zampa said.

BCDC’s role is to oversee the public and environmental interests concerning the bay and shoreline. It was recently the target of a scathing state audit that laid out a number of problems within the agency, including having slow and inefficient enforcement, a large backlog of cases and an inability to perform key duties.

“BCDC knew of the port’s serial violations at this park since at least 2014,” Lewis said. “West Oakland residents deserve faster action to protect their access to the bay and maintain their only shoreline park.”

San Francisco Chronicle columnist Phillip Matier appears Sundays and Wednesdays. Matier can be seen on the KPIX-TV morning and evening news. He can also be heard on KCBS radio Monday through Friday at 7:50 a.m. and 5:50 p.m. Got a tip? Call 415-777-8815, or email pmatier@sfchronicle.com. Twitter: @philmatier