The proponents of a ballot initiative that would allow a new city of 400,000 residents to be built in east Solano County have decided to withdraw the measure and instead prepare a full environmental report on the impact the project would have on everything from the traffic to water to the county’s budget.

In a statement, Solano County Supervisor Mitch Mashburn said the decision came after conversations with California Forever CEO Jan Sramek.

“We have agreed that they will withdraw their measure and not proceed with the election in November,” Mashburn said in a statement. “I think it signals Jan Sramek’s understanding that while the need for more affordable housing and good paying jobs has merit, the timing has been unrealistic.”

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The decision comes two days after a consultant for the county released a scathing assessment of the ballot measure, saying that the plan for the new city was so vague and had so few concrete details that voters lacked the information needed to make an informed decision.