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Earlier this month, the Environmental Protection Agency and the Vermont state government released and a detailed plan for how the state would reach those targets. But the plan is already attracting some criticism.

The EPA's targets require a flowing into the lake.

Stephen Perkins, project manager for the EPA, says the federal agency has looked closely at at the state's implementation plan and is confident that the measures proposed will meet the targets.

The plan aims to reduce including farm fields, paved surfaces and dirt roads.

"We are in a good position to specifically evaluate how these measures would affect the . And it's our finding that the measures that are in the state's plan and the extent of those measures is sufficient for us to find that the state's allocations can be made," Perkins says.

that affect the lake in the summer. The blooms can cause and have .

The new pollution targets came about after the Conservation Law Foundation sued the EPA in 2008, claiming an earlier plan to clean up the lake was insufficient under the Clean Water Act. CLF Vermont director Chris Kilian says the targets are a positive step, but he has significant concerns with parts of the state's implementation plan.

"We are disappointed that so much of the burden seems to be put on very aggressive and we think very difficult-to-achieve retrofits of dirt roads in the watershed when it appears that commercial activities will only receive a pretty light touch with regard to retrofits," Kilian says.

"And we remain concerned that throughout the basin will essentially be allowed to expand how much phosphorus they're permitted to put in the watershed for a significant period of time."

Kilian says CLF will present these concerns to the agencies before the public comment period closes on September 15.