Watershed Implementation plans were established as roadmaps for how and when a state plans to meet pollution reductions under the Total Maximum Daily Load or TMDL established by the EPA for the Chesapeake Bay. Each state with waters draining to the Bay is required to submit a Watershed Implementation Plan (WIP) which proposes how these pollution reduction goals will be met. The WIP has three phases:
-The Virginia Phase I WIP, submitted to the EPA in November 2010, identified general strategies in each of several sectors (agriculture, urban stormwater, wastewater and septic systems) for reducing pollution the the prescribed levels.
- The Virginia Phase II WIP, submitted in March 2012, provides more specific information that facilitates actions by local partners to control nitrogen, phosphorus and sediment to achieve the pollution reduction goals as well as milestones that will be used to gauge progress and guide plan changes.
- The Virginia Phase III WIP will be submitted in 2017 and will be based on progress made and the success or failure of various planned strategies.