Santa Margarita River WQIP Consultation Committee Meeting 1 - PowerPoint PPT Presentation

Santa Margarita River WQIP Consultation Committee Meeting 1 October 17, 2017

Welcome and Introductions Responsible Agencies City of City of City of Menifee Murrieta Temecula City of County of County of San Wildomar Riverside Diego Riverside 2 County Flood Control

Welcome and Introductions Consultation Committee Members Required Members • Erica Ryan, San Diego RWQCB • Terri Biancardi, Environmental Community • Clint Lorimore/Mark Grey, Development Community At Large Members • Ben Drake/Robert Renzoni, 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) 3

Purpose & Structure Dave Ceppos, Associate Director Center for Collaborative Policy 4

Process and Purpose  Provide transparency  Receive recommendations  Answer questions  Build working relationships 5

Consultation Committee  Review draft submittals of WQIP  Provide written recommendations and comments  Represent service area category & expertise  All recommendations will be considered 6

Meeting Guidelines  Listen to understand  Everyone’s perspective is valued  Everyone has an equal opportunity to participate  Keep the conversation focused 7

Meeting Objectives  WQIP Process Overview and Update  B2/B3 Comments  Watershed Management Area Analysis (WMAA) Updates  Monitoring and Assessment Program  Questions/Discussion 8

Water Quality Improvement Plan Overview Stuart McKibbin Riverside County Flood Control and Water Conservation District 9

Santa Margarita River Watershed Management Area 10

Water Quality Improvement Plans  Focus planning & future implementation on watershed priority conditions  Establish numeric goals, strategies & schedules  Incorporate monitoring, assessment & adaptive management programs 11

Watershed Planning - Overview  2 year development process  Public participation requirement Collaborative process  Consultation Committee   Mandated interim deliverables  Phased approach 12

Watershed Planning Phase I Phase II Phase III • Water • Goals • Monitoring Quality • Strategies • Assessment Assessment • Schedules • Adaptive • Prioritization Management • Sources • Sources • WMAA • Potential Strategies 13

Progress to Date • Prioritization, Potential Strategies • Consultation Committee – September 2016 • Revisions and Draft Submittal to Regional Board – Jan 2017 B2 • Regional Board Comments – March 30 and October 11, 2017 • Goals, Strategies, Schedules • Consultation Committee – May 2017 • B2 Revisions and Draft B3 Submittal to Regional Board – July 7, 2017 B3 • Regional Board Comments – October 11, 2017 • Monitoring and Assessment • Adaptive Management WQIP • Consultation Committee – TODAY 14

WQIP – Overview of Elements Water Quality Improvement Plans include:  Priority Water Quality Conditions  Goals and Schedules  Strategies and Schedules  Monitoring Today’s Focus  Assessment 15

B2/B3 Comments from Regional Water Board Received October 11, 2017 Richard Boon Riverside County Flood Control and Water Conservation District 16

General Comments • Format and Terminology – improve readability • Technical Studies – incorporate additional studies • Agriculture Lands – include control strategy 17

B2 Comments Priority Water Quality Conditions • HPWQC – need better linkage to sources • Geographic Extent – consideration of intermittent streams • RFCWCD Areas and Activities 18

B3 Comments Goals, Strategies, Schedules • Goals – attaining numeric goals is uncertain • Strategies – agricultural land • WMAA – need for further evaluation 19

Questions? 20

Watershed Management Area Analysis Update Stuart McKibbin Riverside County Flood Control and Water Conservation District 21

Background • New Development Projects • Stormwater quality retention requirements • Hydromodification requirements (Larger BMPs) An Alternative Compliance Option is available 42

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 23

Watershed Management Area Analysis 48

Hydromodification Management  Reaches selected for exemption analysis  Exempt in June 2013 Santa Margarita Region Hydromodification Management Plan River Downstream Limit Upstream Limit At Origin: Confluence with Temecula Santa Margarita River Outfall to Pacific Ocean Creek and Murrieta Creek Confluence with Santa Temecula Creek Outflow of Vail Lake Margarita River Confluence with Santa Murrieta Creek 850 feet upstream of Hawthorn Street Margarita River 61

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 64

Questions? 27

Introduction to Monitoring and Assessment Paul Hartman Larry Walker Associates 28

Monitoring and Assessment Program Purpose • Support assessment of: • Progress toward numeric goals and schedules • Progress addressing eutrophication and nutrient loading • Each Copermittee’s overall efforts to implement the WQIP 29

Monitoring Overview Receiving Waters 30

Monitoring Overview MS4 Outfalls 31

MS4 Outfall Dry Weather Monitoring Field Target Screening Areas Monitoring (5 sites) 32

Monitoring Overview Special Studies 33

Assessment Overview Receiving Waters • Condition Assessments • Status and Trends Storm Drain Outfalls • Pollutant Reduction • Strategy Assessments Special Studies 34 • Receiving Waters • Sources/Strategies

BREAK 35

Provision B. 4 Monitoring and Assessment Program (MAP) Paul Hartman Larry Walker Associates 36

Receiving Water Monitoring Provision D.1 Regional Long Term Sediment Monitoring Quality Stations Objectives Receiving Water Monitoring 37

Long Term Monitoring Stations What is necessary? • Minimum of one station • Representative of Receiving Water Conditions What is the purpose? • Status and Trends – short/long term improvements • Progress to Goals • Are strategies working? 34 • Are Beneficial Uses Protected?

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Long Term Monitoring Stations Dry Weather • 3 Events • Chemistry, Toxicity Wet Weather • 3 Events • Chemistry, Toxicity Bioassessment • Benthic Macroinvertebrates • Benthic Algae Hydromodification 36 • Bed and Bank Condition

Regional Receiving Water Monitoring Stormwater Monitoring Coalition • Long Term, Well Established Program • Bioassessment Focused • Reference Conditions Southern California Bight Program • Every 5 Years • Multiple Stakeholders and Interests • Marine, Estuarine, Watersheds 37

Sediment Quality Monitoring Sediment Quality in Chemistry Estuaries • Condition Assessments – multiple sites • Triad Approach Benthic Toxicity Ecology Unimpacted Likely Unimpacted Possibly Impacted Likely Impacted 38 Clearly Impacted Inconclusive

Receiving Water Monitoring Question and Relationship to SMR Goals (example) Goal: Reduce dry weather loads in receiving waters by 10%. Monitoring Question: What are the Total Nitrogen and Total Phosphorus loadings in the SMR at the base of the Upper Watershed? How are they changing over time? 39

Questions? 44

MS4 Outfall Monitoring Provision D.2 Non- Stormwater Persistent Flow Monitoring Dry Weather Wet Weather Field Screening Monitoring MS4 Outfall Monitoring 41

Dry Weather Field Screening What is necessary? • Inspect 80% of Major Outfalls • 2x/Year • Visual Observations focused on FLOW What is the purpose? • Source identification and elimination • Prioritization of outfalls – persistent flow • Calculate/estimate non-storm water volumes and pollutant loads 42 • Identify reductions in non-storm water flows and illicit • Evaluate strategies

Dry Weather Field Screening Monitoring Approach Visual Major Outfalls Copermittee 80% of Total Inspections Per (Total) Year RCFCWCD 83 67 134 County of Riverside 6 5 10 Menifee 0 0 0 Murrieta 39 32 64 Temecula 117 94 188 Wildomar 13 11 22 County of San Diego 13 10 20 47 438 Total 271 219

Non-stormwater Persistent Flow Monitoring What is necessary? • Monitor top 5 sites (per jurisdiction) • 2x/Year • Visual Observations + Chemistry What is the purpose? • Source identification and elimination • Calculate/estimate non-storm water volumes and pollutant loads • Identify reductions in non-storm water flows and illicit 44 • Evaluate strategies