santa margarita river wqip · progress to date 14 b2 •prioritization, potential strategies...
TRANSCRIPT
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Santa Margarita River WQIP
Consultation Committee Meeting
May 17, 2017
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Welcome and Introductions
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City of Menifee
City of Murrieta
City of Temecula
City of Wildomar
County of Riverside
County of San Diego
Riverside County Flood
Control
Responsible Agencies
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Welcome and IntroductionsConsultation Committee MembersRequired Members
• Erica Ryan, San Diego RWQCB
• Terri Biancardi, Environmental Community
• Dr. Mark Grey/Clint Lorimore, Development Community
At Large Members
• Ben Drake, Temecula Winegrowers Association
• Andy Domenigoni, Riverside County Farm Bureau
• Kyle Cook, Camp Pendleton Marine Base
• Pablo Bryant, Santa Margarita Ecological Reserve
• Laurie Correa, Regional Conservation Authority
• Rick Neugebauer, Temecula, Elsinore, Anza, Murrieta (TEAM-RCD)
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Purpose & StructureDave Ceppos, Associate Director - Center for Collaborative Policy
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Process Purpose
Provide transparency
Receive recommendations
Answer questions
Build working relationships
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Consultation Committee
Review draft submittals of WQIP
Provide written recommendations and comments
Represent service area category & expertise
All recommendations will be considered
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Meeting Guidelines
Listen to understand
Everyone’s perspective is valued
Everyone has an equal opportunity to participate
Keep the conversation focused
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Meeting Objectives
WQIP Process Overview and Update
Revised Prioritization Process and Results (B2)
Proposed Goals and Schedules (B3)
Approach to Strategies and Schedules (B3)
Watershed Management Area Analysis (WMAA)
Consultation Committee Feedback – Process and Timeline
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Water Quality Improvement Plan Overview
Stuart McKibbin
Riverside County Flood Control and Water Conservation District
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Santa Margarita Watershed Management Area
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WQIPs
Focus planning & future implementation on watershed priority conditions
Establish numeric goals, strategies & schedules
Incorporate monitoring, assessment & adaptive management programs
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Watershed Planning - Overview
2 year development process
Public participation requirement
Collaborative process
Consultation Committee
Mandated interim deliverables
Phased approach
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Watershed Planning
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Phase I
• Water Quality Assessment
• Prioritization
• Sources
• Potential Strategies
Phase II
• Goals
• Strategies
• Schedules
• Sources
• WMAA
Phase III
• Monitoring
• Assessment
• Adaptive Management
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Progress to Date
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B2
• Prioritization, Potential Strategies
• Consultation Committee – Sept 2016
• Revisions and Draft Submittal to Regional Board – Jan 2017
• Regional Board Comments – March 30, 2017
B3
• Goals, Strategies, Schedules
• Draft Goals and Strategies Identified
• Consultation Committee – TODAY
• Submittal to Regional Board – July 7, 2017
WQIP
• Monitoring and Assessment
• Adaptive Management
• Consultation Committee – Late Summer/Early Fall
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WQIP –Overview of Elements
Water Quality Improvement Plans include:
Priority Water Quality Conditions
Goals and Schedules
Strategies and Schedules
Monitoring
Assessment
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Today’s Focus
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Questions?
Discussion?
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Lessons Learned from Other WQIPs and Practical Implementation
Erica Ryan, Regional Water Quality Control Board
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Questions?
Discussion?
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Provision B.2Selection of Priority Water Quality Conditions (revised)
Ashli Desai, Larry Walker Associates
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Prioritization Process
Priority water quality conditions: “pollutants, stressors and/or receiving water
conditions that are highest threat to receiving water quality or that most adversely affect the quality of receiving waters”
Goal was to develop a process that: Utilized available data and information of all types
Considered known impacts to beneficial uses
Incorporate local knowledge and information about watercourse function, environmental values, community goals, habitat preservation, etc. 20
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Key Modifications in Response to Comments• Simplified Process
• Watershed Approach
• Reaches (41) Subwatersheds (11)
• Water Quality as the Foundation
• Beneficial Use Considerations to Rank Conditions
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Revised Ranking Process
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Subwatersheds and Subareas
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Priority Water Quality Conditions
Priority Condition Description TemporalExtent
Eutrophication EutrophicationNutrient Loading
DryDry and Wet
Toxicity Observed Toxicity Dry and Wet
Physical Habitat Erosion/hydromodification or physical habitat impacts
Wet
Nuisance Conditions
Trash Dry and Wet
Recreation Indicator bacteria concentrations Dry and Wet
Water Supply Select constituents of concern for drinking water
Dry and Wet
Agricultural Supply Select constituents of concern for agriculture
Dry and Wet
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Priority Water Quality Conditions
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Highest priorities
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Process to Determine Highest Priority(ies)
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• Score by PWQC (Yes = 1, No = 0)
• TMDL – existing or under development, other significant regulatory action
• 303d Listing
• Threshold Exceedances – Chemistry
• Threshold Exceedances – Other Indicators (biology, physical habitat)
• Historical vs. Current Conditions
• Known Locations of Beneficial Use Impacts
• Geographic Extent
• Potential Improvements:
• Are there feasible projects or programs to address condition?
• Would opportunities for beneficial uses be realized?
• Are there other social benefits gained?
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High Priority Water Quality Condition Evaluation
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1
2
3
4
5
6
7
8
9
10
TMDL
303(d)
Threshold Exc - Chemistry
Threshold Exc - Other
Increasing Trends
Known Locations
Geographic Extent
Feasible Projects/Programs
Beneficial Use Opportunities
Social Benefits
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Updated Highest Priority Water Quality Conditions
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Category Priority ConditionTemporal
ExtentGeographic Extent
Eutrophication
Eutrophication (elevated algal biomass, dissolved oxygen, and/or bioassessment impacts due to biostimulatory substances)
DrySMR Estuary, Warm Springs, Redhawk Channel (1)
Nutrient loading to TMDL waterbody
Dry
All areas in Upper and Lower SMR subwatersheds where MS4 discharges occur
Wet Rainbow Creek (1)
(1) Other areas may be added as result of TMDL alternative development during adaptive management process.
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Questions?
Discussion?
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Provision B.3.aGoals and Schedules
Paul Hartman, Larry Walker Associates
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Permit Requirements - Goals Provision B.3.a.(1)
• Discharges not Cause or Contribute AND/OR
• Receiving Waters/Habitat Protected from MS4 Discharge AND/OR
• Beneficial Uses Protected from MS4 Discharges
• Demonstrate Progress
• One per Final Goal
• One per 5 Year Period (Permit Term)
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Interim Goals Final Goals
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Permit Requirements – Schedules Provision B.3.a.(2)
• Interim and Final Schedules for Goals
• As TMDLs get approved, schedules will be incorporated into the WQIP
• Shortest practicable time required
• Considering temporal and spatial extent and factors associated with the HPWQC
• Time reasonably required to implement strategies33
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Approach to Goals and Schedules
• Incorporate most up to date information from the TMDL alternative (Santa Margarita Estuary)
• Multiple pathways flexibility in implementation
• Receiving waters goals demonstrate progress and support a watershed approach
• MS4 discharge goals demonstrate progress and provide jurisdictional accountability
• Account for natural loading
• BMP based option through WQIP implementation
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Goals: Pathways 1 –6
1. Reduction in dry weather loadings from the MS4 in the Receiving Water - OR -
2. Meet Alternative TMDL targets in the Estuary - OR -
3. Reduction in non-stormwater flows within Copermittee control - OR -
4. Reduction in dry weather loadings from MS4 - OR -
5. Exceedances of targets are due to sources outside of Copermittee control - OR -
6. Implement accepted WQIP
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Schedules for Goals
• Based on anticipated/approved TMDL Schedules
• Comparable to other WQIP Schedules
• Final Goals achieved in 2038
• Interim Goals in 2023, 2028, 2033
• Schedules will be aligned with TMDL alternative once adopted
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Questions?
Discussion?
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Provision B.3.bStrategies and Schedules
Stuart McKibbin
Riverside County Flood Control and Water Conservation District
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Permit Requirements – StrategiesProvision B.3.b
Jurisdictional• Jurisdictional Runoff Management Program(JRMP)
• Enhanced JRMP
Optional Jurisdictional
• Best Management Practices (BMPs), Incentives, Programs
• Retrofits
• Stream Rehabilitation
• Triggers and Resources
Optional Watershed
ManagementArea (WMA)
• Regional or Multi-jurisdictional
• BMPs, Incentives, Programs
• Retrofits
• Stream Rehabilitation
• Triggers and Resources
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Permit Requirements – SchedulesProvision B.3.b
• Initiated upon WQIP acceptance?
• Shortest practicable time for implementation?
• Or shortest time to secure resources (for optional)
• Continuous or completed within a schedule?
• If not continuous, identify schedule
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Initial Approach to Strategies and Schedules
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• IDDE
• Dev Planning
• Construction
• Existing Dev
• Outreach
• Enforcement
Watershed Wide
• Land Use
• Sources
• Field Screening Results
Identify Target Areas
• Focused JRMP Strategies
• Specific Areas
• Monitoring
Enhanced Strategies
Permit Term (2018 – 2023)
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Approach to Strategies and Schedules over Time
Monitor
Assess Adapt
Implement
Watershed Wide and Enhanced Strategies
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Adaptation of Strategies and Schedules
Every 5
Years
Adaptation of
Strategies
Priorities
Progress to Goals
Strategies
Monitoring and
Assessment
Optional Jurisdictional
Enhanced JRMP
Optional WMA
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Adaptive Management Options
Enhanced JRMP
Select from Menu
Implement in Target Areas
Expand, Adjust, Replace Existing
Strategies
Programs and BMPs
Optional Jurisdictional*
Water District Coordination
CIP Projects
Enhanced Street Sweeping
Retrofitting within Existing Facilities
Infiltrate/Treat at Outfall
Infiltrate/Treat within Tributary
Optional WMA*
Regional Dry Weather Inspector
Incentive Programs
In-stream Strategies
Regional Dry Weather Retrofits
OR OR
*as triggered and resourced
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Implementation Process
1. High Priority Water Quality Condition
What is the high priority water quality condition (HPWQC)?
2. Select Target Areas
What and where are the key sources within my jurisdiction?
Where are MS4s potentially contributing?
3. Identify Strategies
Which JRMP strategies will address the HPWQC?
What enhanced JRMP strategies can we implement to address the HPWQC?
4. Implement Strategies
JRMP
Enhanced JRMP
5. Progress to Goals (5 Year)
Are we meeting interim goals?
Will our strategies get us to the next interim goals?
• Yes Continue
• No Adapt
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Process and Example
1. High Priority Water Quality Condition
• Eutrophication and Nutrient Loading
2. Select Target Areas
• Key Sources are Nurseries and Residential Areas
• No MS4 flow from nursery areas
• Evidence of persistent flow from Residential Areas
3. Identify Strategies
• Inspections Programs – Increase inspections in Residential Areas
• Development Planning – Modify LID Requirements for New Dev.
• Outreach and Education – Target HOAs
4. Implement Strategies
• Perform inspections in Residential Areas
• Develop targeted outreach campaign for HOAs
5. Assess Progress to Goals (5 Year)
• Are we meeting interim goals?
• Will our strategies get us to the next interim goals?
• Yes Continue to Implement
• No Adapt – Enhanced JRMP or Optional JRMP or Optional WMA
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Questions?
Discussion?
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Watershed Management Area Analysis
David Garcia PE
Riverside County Flood Control and Water Conservation District
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Outline
• Background
• What is the Watershed Management Area Analysis?
• Watershed Management Area Analysis Preliminary Results
• Mapping
• Hydromodification Management
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Background
• New Development Projects
• Stormwater quality retention requirements
• Hydromodification requirements (Larger BMPs)
An Alternative Compliance Program is available
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Example Alternative Compliance Projects
• Stream or riparian area rehabilitation
• Retrofitting existing infrastructure to incorporate stormwater retention or treatment
• Regional Best Management Practice
• Groundwater recharge projects
• Water supply augmentation
• Land Purchases to preserve floodplain functions
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Optional Alternative Compliance Program Process• Alternative to onsite mitigation
However, a Watershed Management Area Analysis must be performed
BMP Design
Manual
(Required)
Water Quality
Improvement
Plan
(Required)
Watershed
Management
Area Analysis
(Optional)
Alternative
Compliance
Program
Alternative
Compliance
Program
Water Quality
Equivalency
(Optional)
Water Quality
Equivalency
(Optional)Regional Board
Approval
Regional Board
Approval
Funding Program
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San Diego
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Water Quality Equivalency-Alternative Compliance Example (Water Quality)
Source: Final Water Quality Equivalency Guidance for Region 9
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Water Quality Equivalency-Offsite Alternative Compliance Example (Hydromodification)
Source: Final Water Quality Equivalency Guidance for Region 9
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Watershed Management Area Analysis
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Watershed Management Area Analysis
• How data will be used
• Land Use – Evaluate potential impacts resulting from land development
• Hydrologic Processes – Identify opportunities for enhanced infiltration
• Streams and Channels – Assess stream stability
• Coarse sediment areas – Identify areas of sediment supply which contributes to stream stability
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Watershed Management Area Analysis Preliminary Results
Analysis
Development
• San Diego County
• WMAA
• WQE
Mapping
• San Diego County
• WRCOG-WSP
• Hydrologic Processes
• Coarse Sediment
• RCFC&WCD
• Existing Streams
• Future Land Uses
• Flood Control Structures
Hydromodification
• Geosyntec
• Santa Margarita
• Murrieta Creek
• Temecula Creek
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Dominant Hydrologic Processes
• A description of dominant hydrologic processes, such as areas where infiltration or overland flow likely dominates
59Hydrologic Processes
Soil
Slope
Land Cover
Geology
Ground water
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Dominant Hydrologic Processes
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Dominant Hydrologic Processes
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Coarse Sediment
• Potential coarse sediment yield areas
62Coarse
Sediment
Geology
Land Cover
Slope
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Potential Critical Coarse Sediment Yield Areas
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Potential Critical Coarse Sediment Yield Areas
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Streams and Structures
• Locations of existing flood control structures and channel structures, such as:
• stream armoring,
• constrictions,
• grade control structures, and
• hydromodification or flood management basins
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Streams and Structures
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Streams and Structures
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Hydrographic Category
• A description of existing streams in the watershed, including bed material and composition, and if they are perennial or ephemeral
• Source
• USGS National Hydrology Dataset
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Hydrographic Category
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Hydrographic Category
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Current Land Use
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Current Land Use
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Anticipated Land Use
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Anticipated Land Use
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Hydromodification ManagementReaches selected for exemption analysisExempt in June 2013 Santa Margarita Region Hydromodification
Management Plan
River Downstream Limit Upstream Limit
Santa Margarita River Outfall to Pacific OceanAt Origin: Confluence with Temecula
Creek and Murrieta Creek
Temecula CreekConfluence with Santa
Margarita RiverOutflow of Vail Lake
Murrieta CreekConfluence with Santa
Margarita River850 feet upstream of Hawthorn Street
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Exemption Analysis
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Hydromodification ImpactsErosion Potential (Ep):
Increase in Flows [Hydrology]
Changes in Sediment Transport Capacity [Hydraulics: channel geometry, bed/bank material]
Sediment Supply Potential (Sp):
Sediment Supply Potential Changes in coarse sediment supply
Evaluate Exemption (Ep<1.05 &
Sp>0.50) [Same Criteria as San Diego
WMAA] 63
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Exemption Analysis: Results
River Ep Sp Recommendation
Santa Margarita River 1.03 0.83 Analysis supports Exemption
Temecula Creek Analysis In Progress
Murrieta Creek Analysis In Progress
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Questions?
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Closing Comments, Discussion, Next Steps
Dave Ceppos, Associate Director - Center for Collaborative Policy
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Next Steps Comments and Feedback on Today’s Material Revised Prioritization Process
Preliminary Goals and Schedules
Strategies and Schedules
Revised Priority Water Quality Conditions Section To Regional Board June 9, 2017
Draft Goals, Strategies, and Schedules Section To Consultation Committee May 26, 2017
Comments due June 2, 2017
Submittal to Regional Board July 7, 2017 81
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Opportunities for Public Input
Consultation Panel Meetings
Public Comment Period
Public Call for Data
April 22, 2016 – May 23, 2016
Project Activity
Final Draft Document to Regional Water Quality
Control Board
Final Water Quality Improvement Plan, April 2018
Consultation Panel Input
Comments on Draft report due June 2, 2017
Initial Feedback on Prioritization Process
and Potential Strategies: May 17, 20171
2
Draft Document to Consultation Committee
APR JUN AUG OCT DEC FEB APR JUN AUG OCT DEC FEB APR2016 2016 2016 2016 2016 2017 2017 2017 2017 2017 2017 2018 2018
Project Kickoff
Priority Water Quality Conditions and Potential Strategies
Water Quality Improvement Goals, Strategies& Schedules
Complete Water Quality Improvement Plan
Final WQIP Revisions
1 2
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Questions?
Discussion?
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Comments/Feedback
To Darcy Kuenzi, Government Affairs Officer
Riverside County Flood Control and
Water Conservation District
1995 Market Street
Riverside, CA 92501
84