Regular program accomplishment reporting facilitates program transparency, demonstrates accountability and helps retain support for the expenditure of public funds on water quality improvement actions.These Results pages provide a way to interactively explore TMDL implementation accomplishments. The  information is organized by the urban and non-urban pollutant source categories established by the Lake Tahoe TMDL.

For more information on how and why tracking and reporting varies between the urban and non-urban pollutant source categories, download the Accomplishments Tracking and Reporting Rationale.


Urban Uplands Source Category

Accomplishments describe the estimated average annual fine sediment particle, nitrogen, and phosphorus load reductions and the associated Lake Clarity Credit awards achieved by each Urban Implementing Partner. Example results are presented to demonstrate functionality while the Lake Clarity Crediting Program is being refined.


Urban Uplands Results







Non-Urban Source Categories

Accomplishments are tracked and reported using a set of six TMDL performance measures (TMDL PMs) that quantify the miles, acres, feet and number of facilities on or for which water quality improvement activities are undertaken. The six TMDL PMs were selected based on their relevance to lake clarity, their alignment with existing reporting efforts in the Tahoe Basin, and the feasibility of data collection


Forest Uplands Results

Stream Channel Erosion Results

Atmospheric Deposition




Lake Tahoe TMDL Performance Report

The Lake Tahoe TMDL Performance Report complements accomplishment results presented above. The report provides a high-level summary of TMDL implementation efforts by summarizing the most compelling accomplishment information, providing a brief trend analysis for each TMDL source category and highlighting water quality improvement projects of interest.


2015 TMDL Performance Report