Petaluma City Council members at Monday night's meeting will discuss sending another opposition letter to the county about the Dutra asphalt plant just outside Petaluma city limits.

The council has unanimously expressed its opposition to the plant, which the supervisors approved 3-2 in an informal vote. The Board of Supervisors is set to take a formal vote on the project on Dec. 14.

A draft of the letter says it touches on "broader themes," different than a series of other letters from Petaluma.

The draft notes that the nearby Shollenberger Park is "cherished and heavily used" and calls the plant the "wrong message" for the southern gateway to Petaluma.

It also criticizes the county for making decisions without taking into account Petaluma and its residents' viewpoint.

"Here, in Petaluma, this asphalt plant is an enormously important issue for this city, and yet the Board of Supervisors is still poised to give its final approval," the letter states. "The common theme here is one local jurisdiction taking actions it is entitled to take while ignoring the strong wishes of another local jurisdiction."

In its last few sentences, the letter appears to threaten reciprocation of the perceived lack of cooperation: "We remind you that there will be times, as there have been in the past, when the shoe may be on the other foot and the county will need jurisdictions such as ours to subsume narrow local interests toward broader regional goals."

On October 12, Supervisors Mike Kerns, Efren Carrillo and Paul Kelley voted to approve the plant. Shirlee Zane and Valerie Brown opposed the project.

Tonight's meeting begins at 7 p.m. at City Hall.