We knew tighter federal requirements for reducing pollutants in the Chesapeake Bay were on the way, and on Wednesday, Virginia and the other Chesapeake Bay states got their first taste of what federal oversight of Bay restoration might really mean. Each of the impacted states received letters from EPA detailing tighter restrictions on what pollutants could enter the Chesapeake Bay watershed and in what amounts. The EPA directed that states will have to limit annual discharges of nitrogen to 200 million pounds and phosphorus to 15 million pounds by 2025. Controls will need to be in place by 2017 to meet 60% of the mandated reductions.