Atmospheric Deposition comprises only about 15% of the FSP loading, but the bulk of the total nitrogen loading to the Lake. The strategy for reducing FSP and phosphorus from atmospheric deposition calls for actions and controls that reduce dust from roadways, parking lots, and construction sites, such as street sweeping with advanced equipment, or paving or eliminating dirt roads. The strategy for reducing nitrogen generated in-basin as emissions relies on the Tahoe Regional Planning Agency’s (TRPA) 2012 air quality and transportation management plan, which aims to reduce vehicle miles travelled in the Tahoe Basin. Several Environmental Improvement Project (EIP) PMs are closley aligned with the goal of achieving load reductions in the Atmospheric Deposition Source Category.
Miles of city, county and state roads that are swept to reduce stormwater pollution during each EIP reporting year as part of regular operations and maintenance procedures. Capital stormwater infrastructure improvement activities are captured by other PMs. Sweeping streets reduces a major source of pollutants in stormwater runoff that flows to Lake Tahoe and works toward reducing clarity loss.
Constructed: Bicycle and pedestrian routes are constructed when a new route is built on a previously unoccupied site.
Improved: Bicycle and pedestrian routes are considered improved when an action is taken to enhance an existing route for the benefit of public transit.