ROHNERT PARK, Calif. -- City officials said Tuesday that an Indian tribe has offered an "unprecedented proposal" to contribute $200 million to Rohnert Park over the next 20 years to mitigate the impacts of its proposed hotel and casino just west of the city limits.

The proposal disclosed by Mayor Armando Flores and Councilmember Vicki Vidak-Martinez was to be discussed at a meeting of the full city council Tuesday night.

The five-member council will eventually vote on the proposed Memorandum of Understanding between the city and the Federated Indians of Graton Rancheria. Councilman Jake Mackenzie has already said he'll vote against it.

At the news conference on the proposed MOU, Mackenzie decried the "closed door meetings" and "secret discussion" between city officials and tribal representatives.

Proponents of a drive to recall the entire city council have made those same allegations and oppose the casino because of its impact on traffic, the city's water supply, and the anticipated increase in crime at the 360-acre site now in agricultural use.

Vidak-Martinez and Flores, members of an ad-hoc committee that negotiated with the tribe since August, said the proposed MOU "far exceeds any currently existing gaming accord between a California tribe and a local governmental entity."

Flores said the tribe has been a "very supportive partner" and he and Vidak-Martinez said they'll recommend the entire city council approve the proposed MOU.

Flores, however, admitted the full financial impacts that the proposed 300-room hotel and 2,000 slot machine casino will have on the city haven't been "quantified."

"Additional major studies will progress" after the MOU is signed, Flores said, and the tribe will do a environmental study in compliance with the National Environmental Policy Act.

Included in the proposed MOU is $9 million a year increased annually for inflation to Rohnert Park beginning the year the casino opens for business.

Five million of that amount will go to the city's general fund for city services including increased police and fire protection. Vidak-Martinez said an additional 12 police and fire officers could be hired.

The Cotati-Rohnert Park Unified School District would get $1 million a year. One million dollars annually would go toward workforce housing, including neighborhood and housing upgrades throughout the city.

And $2 million a year would fund community and neighborhood programs to combat gangs, drugs and hunger in Rohnert Park, city officials said.

Flores said the city won't provide water or sewer services to the casino-hotel north of Rohnert Park Expressway and west of U.S. Highway 101.

Roads around the casino will be widened and improved. The tribe will also purchase property worth at least $2.7 million and donate it to the city for open space to replace the land on which the casino will be built.

Intense opposition, especially by environmentalists and local, state and federal elected officials, scuttled the tribe's plan to build the casino on a site near wetlands at state Highway 37 and Lakeville Road at Sears Point.

Vidak-Martinez said that although there is strong opposition among Rohnert Park residents, environmental concerns about the Rohnert Park site are not of the same magnitude of the Sears Point location.

She said Rohnert Park opponents mistakenly believe public opposition alone caused the tribe to consider 41 other sites for its project. She said opposition by federal elected officials, which included Sen. Dianne Feinstein and Rep. Lynn Woolsey, was critical to the tribe's decision to look elsewhere.

Casino opponent Anita Felton said she has gathered 4,000 signatures against the casino and that "it is not a done deal" because the 360-acre site has not yet been placed in trust by the federal government.