The Tahoe Region contains 63 streams that flow into Lake Tahoe. Streams account for a portion of the nutrients and sediments going into Lake Tahoe, and play a large role in Lake Tahoe's clarity. Policy and management actions to attain standards for Tahoe Region tributary waters are implemented through the TRPA Regional Plan and the Environmental Improvement Program, and generally aim to reduce pollutant loading to Lake Tahoe. These actions include projects to restore stream environment zones (SEZ) and limit the rate and extent of urban growth. The Lake Tahoe Interagency Monitoring Program routinely monitors seven streams to track water quality conditions and pollutant levels in the streams. 

Indicators

THRESHOLD CATEGORY REPORTING CATEGORY INDICATOR
THRESHOLD CATEGORY REPORTING CATEGORY INDICATOR

The threshold evaluation assigns a status to an indicator relative to the adopted standard. As shown on the icon legend below, the background color of the reporting icon communicates the indicator “status” or estimate of current condition. For numerical standards, the status of an indicator is classified into “better” or “worse” categories based on the percent divergence of the current indicator value from the standard or interim target. For most indicators, the current value is taken directly from the value recorded in the most recent year. In some cases, the average value calculated from all data collected during the evaluation period is used. When an average value is used, it is noted and explained on the indicator evaluation page for that specific evaluation year.  

Note: Thresholds reported as "Implemented" refer to thresholds that were adopted as policy guidance in the development of the Regional Plan. In these cases, the subject policies, ordinances, or environmental protections have been incorporated into the TRPA Regional Plan and TRPA Code of Ordinances.