Coyote Creek Watershed Integrated Pilot Assessment

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Coyote Creek Watershed Integrated Pilot
Assessment

• Santa Clara Valley Urban Runoff Pollution
  Prevention Program

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Coyote Creek and Watershed Stewardship Objectives
are consistent

• Identify conditions and issues that affect
  watershed health using Indicators
• Identify appropriate management actions
• Provide direction for long-term monitoring
  program
• Identify appropriate monitoring locations

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Relationship to Regional Methods
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Assessment Approach

• Integrated 2 Assessment Approaches
• Hydrogeomorphic Model (HGM), USACE
• Multimetric Indices of Biological Integrity, EPA
• Evaluated 5 Stream Ecosystem Functions/Indicators
• Hydrologic Processes and Channel Dynamics
• Riparian Habitat Condition
• Aquatic Habitat Condition
• Landscape-Level Aquatic Habitat Connectivity
• Aquatic Faunal Community

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Evaluating Stream Functions/Indicators

• Existing Condition
• Used existing data
• Developed models that rank existing values
  relative to reference standard conditions or best
  existing conditions
• Future Condition
• Positive/negative impacts of planned projects
• Potential Condition
• Unplanned pragmatic and strategic management
  actions

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Ecosystem health indicator
Historic conditions (with uncertainty)
Un recoverable damage
Restoration potential
Socio economic choices
Current conditions
1800 1850 1900 1950 2000
2050 2100
Time
Slide Developed by Watershed Stewardship Project
Team
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Results Existing FC Coyote Creek
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ResultsHydrologic Channel Dynamics Function
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Results Future, Potential Condition Coyote Reach
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? 0 Low ? Low/Medium? ? Medium ?
Medium/High ? High ND No Data

• Future expect little change
• Potential
• Improve through Management Actions
• Stakeholder Process

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Potential Management Actions to Improve Watershed
Health Coyote Reach 9
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Potential Monitoring Actions to address Data
Gaps Coyote Reach 9
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Summary

• Method for Assessing Watershed Health
• Quantitative, Repeatable Indicators
• Mechanisms for recommending management changes
  and prioritizing restoration efforts
• Supports SCVWD Ends Policies, and Natural Flood
  Protection Project Guidance (NFP)
• Next Steps Develop/Refine Methodology to
• Better serve NFP and Ends Policies
• Correspond to methods proposed by SCVURPPP and
• Water Resources Protection Collaborative

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