Santa Margarita River WQIP. Consultation Committee Meeting May 17, 2017

Transcription

1 Santa Margarita River WQIP Consultation Committee Meeting May 17,

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

3 Welcome and Introductions Consultation Committee Members Required 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) 3

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

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

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

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

8 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 8

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

10 Santa Margarita Watershed Management Area 10

11 WQIPs Focus planning & future implementation on watershed priority conditions Establish numeric goals, strategies & schedules Incorporate monitoring, assessment & adaptive management programs 11

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

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

14 Progress to Date B2 B3 Prioritization, Potential Strategies Consultation Committee Sept 2016 Revisions and Draft Submittal to Regional Board Jan 2017 Regional Board Comments March 30, 2017 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 14

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

16 Questions? Discussion? 16

17 Lessons Learned from Other WQIPs and Practical Implementation Erica Ryan, Regional Water Quality Control Board 17

18 Questions? Discussion? 18

19 Provision B.2 Selection of Priority Water Quality Conditions (revised) Ashli Desai, Larry Walker Associates 19

20 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

21 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 21

22 Revised Ranking Process 22

23 Subwatersheds and Subareas 23

24 Priority Water Quality Conditions Priority Condition Description Temporal Extent Eutrophication Eutrophication Nutrient Loading Dry Dry and Wet Toxicity Observed Toxicity Dry and Wet Physical Habitat Nuisance Conditions Erosion/hydromodification or physical habitat impacts Trash Wet Dry and Wet Recreation Indicator bacteria concentrations Dry and Wet Water Supply Agricultural Supply Select constituents of concern for drinking water Select constituents of concern for agriculture Dry and Wet Dry and Wet 24

25 Priority Water Quality Conditions 25

26 Highest priorities 26

27 Process to Determine Highest Priority(ies) 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? 27 Are there other social benefits gained?

28 High Priority Water Quality Condition Evaluation TMDL 303(d) Threshold Exc - Chemistry Threshold Exc - Other Increasing Trends Known Locations Geographic Extent Feasible Projects/Programs Beneficial Use Opportunities Social Benefits

29 Updated Highest Priority Water Quality Conditions Category Priority Condition Temporal Extent Geographic Extent Eutrophication Eutrophication (elevated algal biomass, dissolved oxygen, and/or bioassessment impacts due to biostimulatory substances) Nutrient loading to TMDL waterbody Dry SMR Estuary, Warm Springs, Redhawk Channel (1) All areas in Upper and Lower SMR Dry 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. 29

30 Questions? Discussion? 30

31 Provision B.3.a Goals and Schedules Paul Hartman, Larry Walker Associates 31

32 Permit Requirements - Goals Provision B.3.a.(1) Interim Goals Demonstrate Progress One per Final Goal One per 5 Year Period (Permit Term) Final Goals Discharges not Cause or Contribute AND/OR Receiving Waters/Habitat Protected from MS4 Discharge AND/OR Beneficial Uses Protected from MS4 Discharges 32

33 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 strategies 33

34 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 34

35 Goals: Pathways 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 29

36 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 30

37 Questions? Discussion? 37

38 Provision B.3.b Strategies and Schedules Stuart McKibbin Riverside County Flood Control and Water Conservation District 38

39 Permit Requirements Strategies Provision B.3.b Jurisdictional Jurisdictional Runoff Management Program(JRMP) Enhanced JRMP Optional Jurisdictional Optional Watershed Management Area (WMA) Best Management Practices (BMPs), Incentives, Programs Retrofits Stream Rehabilitation Triggers and Resources Regional or Multi-jurisdictional BMPs, Incentives, Programs Retrofits Stream Rehabilitation Triggers and Resources 32

40 Permit Requirements Schedules Provision 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 40

41 Initial Approach to Strategies and Schedules IDDE Dev Planning Construction Existing Dev Outreach Enforcement Watershed Wide Identify Target Areas Land Use Sources Field Screening Results Focused JRMP Strategies Specific Areas Monitoring Enhanced Strategies Permit Term ( ) 41

42 Approach to Strategies and Schedules over Time Watershed Wide and Enhanced Strategies Implement Monitor Adapt Assess 35

43 Adaptation of Strategies and Schedules Progress to Goals Strategies Every 5 Years Priorities Adaptation of Strategies Monitoring and Assessment Optional Jurisdictional Enhanced JRMP Optional WMA 36

44 Adaptive Management Options Enhanced JRMP OR Optional Jurisdictional* OR Optional WMA* Select from Menu Implement in Target Areas Water District Coordination CIP Projects Enhanced Street Sweeping Regional Dry Weather Inspector Incentive Programs Expand, Adjust, Replace Existing Strategies Programs and BMPs Retrofitting within Existing Facilities Infiltrate/Treat at Outfall Infiltrate/Treat within Tributary In-stream Strategies Regional Dry Weather Retrofits 37 *as triggered and resourced

45 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

46 Process and Example 1. High Priority Water Quality Condition 2. Select Target Areas 3. Identify Strategies 4. Implement Strategies 5. Assess Progress to Goals (5 Year) Eutrophication and Nutrient Loading Key Sources are Nurseries and Residential Areas No MS4 flow from nursery areas Evidence of persistent flow from Residential Areas Inspections Programs Increase inspections in Residential Areas Development Planning Modify LID Requirements for New Dev. Outreach and Education Target HOAs Perform inspections in Residential Areas Develop targeted outreach campaign for HOAs 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

47 Questions? Discussion? 47

48 Watershed Management Area Analysis David Garcia PE Riverside County Flood Control and Water Conservation District 48

49 Outline Background What is the Watershed Management Area Analysis? Watershed Management Area Analysis Preliminary Results Mapping Hydromodification Management 49

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

51 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 51

52 Optional Alternative Compliance Program Process Alternative to onsite mitigation However, a Watershed Management Area Analysis must be performed BMP Design Manual (Required) Watershed Management Area Analysis (Optional) Water Quality Improvement Plan (Required) Water Water Quality Equivalency (Optional) Funding Regional Board Program Approval Alternative Compliance Program 44

53 San Diego 53

54 Water Quality Equivalency- Alternative Compliance Example (Water Quality) Source: Final Water Quality Equivalency Guidance for Region 9 46

55 Water Quality Equivalency-Offsite Alternative Compliance Example (Hydromodification) Source: Final Water Quality Equivalency Guidance for Region 9 47

56 Watershed Management Area Analysis 48

57 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 57

58 Watershed Management Area Analysis Preliminary Results Analysis Development Mapping Hydromodification San Diego County WMAA WQE San Diego County WRCOG-WSP Hydrologic Processes Coarse Sediment RCFC&WCD Existing Streams Future Land Uses Flood Control Structures Geosyntec Santa Margarita Murrieta Creek Temecula Creek 58

59 Dominant Hydrologic Processes A description of dominant hydrologic processes, such as areas where infiltration or overland flow likely dominates Slope Land Cover Geology Soil Hydrologic Processes Ground water 59

60 Dominant Hydrologic Processes 60

61 Dominant Hydrologic Processes 61

62 Coarse Sediment Potential coarse sediment yield areas Land Cover Geology Slope Coarse Sediment 62

63 Potential Critical Coarse Sediment Yield Areas 63

64 Potential Critical Coarse Sediment Yield Areas 64

65 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 55

66 Streams and Structures 66

67 Streams and Structures 67

68 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 57

69 Hydrographic Category 69

70 Hydrographic Category 70

71 Current Land Use 71

72 Current Land Use 72

73 Anticipated Land Use 73

74 Anticipated Land Use 74

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

76 Exemption Analysis 62

77 Hydromodification Impacts Erosion 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

78 Exemption Analysis: Results River Ep Sp Recommendation Santa Margarita River Analysis supports Exemption Temecula Creek Murrieta Creek Analysis In Progress Analysis In Progress 64

79 Questions? 79

80 Closing Comments, Discussion, Next Steps Dave Ceppos, Associate Director - Center for Collaborative Policy 80

81 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,

82 Project Kickoff APR JUN AUG OCT DEC FEB APR JUN AUG OCT DEC FEB APR Priority Water Quality Conditions and Potential Strategies Water Quality Improvement Goals, Strategies & Schedules 1 2 Complete Water Quality Improvement Plan Final WQIP Revisions Project Activity Draft Document to Consultation Committee Final Draft Document to Regional Water Quality Control Board Final Water Quality Improvement Plan, April 2018 Consultation Panel Input 1 Initial Feedback on Prioritization Process and Potential Strategies: May 17, 2017 Opportunities for Public Input Public Call for Data April 22, 2016 May 23, 2016 Public Comment Period 82 2 Comments on Draft report due June 2, 2017 Consultation Panel Meetings

83 Questions? Discussion? 83

84 Comments/Feedback To Darcy Kuenzi, Government Affairs Officer Riverside County Flood Control and Water Conservation District 1995 Market Street Riverside, CA