View More Details in Data Center
Provide Feedback

Restore 25% of Disturbed SEZ

This indicator measures the restoration of stream environment zones (SEZ) that have been disturbed or developed. Prior to the establishment of TRPA regulations that limit development in SEZ, these areas were developed and degraded through development and harmful activities like grazing. SEZ plays a variety of critical roles including natural water filtration, storage, and conveyance of surface runoff. Naturally functioning SEZ also provides open space, flood flow capacity, riparian vegetation, fish and wildlife habitat, and buffer urban uses in developed areas. Through the Environmental Improvement Program (EIP), numerous SEZ restoration projects have been completed or are planned. SEZ restoration is tracked through the EIP program, and SEZ condition is monitored by EIP partners and TRPA.

Restore 25% Disturbed SEZ.jpg

Status

Cumulative SEZ restoration in the Lake Tahoe Region between 1980 and 2019 as a proportion of SEZ restoration target achieved.

Evaluation Map

Stream environment zones in the Tahoe Region and their rating. "A" rating is excellent condition, "B" is good condition, "C" is degraded condition, and "D" is very degraded condition.

2019 Evaluation

Status
Somewhat Worse Than Target
Trend
Moderate Improvement
Confidence
Moderate
View Evaluation

Applicable Standard

SC12: Restore 25 percent of the SEZ lands that have been identified as disturbed, developed, or subdivided.

Key Points

  • To date, restoration programs have achieved 96% of the threshold's goal: 1,057 acres of the 1,100-acre target for disturbed SEZ have been restored.
  • As the Tahoe Region approaches this historic milestone, work is underway to establish new goals for SEZ restoration.
  • The foundation for any new goals will be the comprehensive stream environment zone (SEZ) baseline condition assessment completed in 2020 by TRPA and EIP partners. The SEZ condition assessment is a benchmark for measuring the benefit of identified ongoing and future restoration projects.

Delivering and Measuring Success

EIP Indicators

  • Acres of SEZ Restored or Enhanced

    This EIP performance measure tracks the amount of SEZ that is restored or enhanced by EIP partners to regain natural or historic function and values.

Example EIP Projects