santa margarita river wqip · progress to date 14 b2 •prioritization, potential strategies...

Santa Margarita River WQIP

Consultation Committee Meeting

May 17, 2017

1

Welcome and Introductions

2

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

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)

3

Purpose & StructureDave Ceppos, Associate Director - Center for Collaborative Policy

4

Process 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

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

Water Quality Improvement Plan Overview

Stuart McKibbin

Riverside County Flood Control and Water Conservation District

9

Santa Margarita Watershed Management Area

10

WQIPs

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

13

Phase I

• Water Quality Assessment

• Prioritization

• Sources

• Potential Strategies

Phase II

• Goals

• Strategies

• Schedules

• Sources

• WMAA

Phase III

• Monitoring

• Assessment

• Adaptive Management

Progress to Date

14

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

WQIP –Overview of Elements

Water Quality Improvement Plans include:

Priority Water Quality Conditions

Goals and Schedules

Strategies and Schedules

Monitoring

Assessment

15

Today’s Focus

Questions?

Discussion?

16

Lessons Learned from Other WQIPs and Practical Implementation

Erica Ryan, Regional Water Quality Control Board

17

Questions?

Discussion?

18

Provision B.2Selection of Priority Water Quality Conditions (revised)

Ashli Desai, Larry Walker Associates

19

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

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

Subwatersheds and Subareas

23

24


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


25

Highest priorities

26

Process to Determine Highest Priority(ies)

27

• 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?

High Priority Water Quality Condition Evaluation

0

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

Updated Highest Priority Water Quality Conditions

29

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.

Questions?

Discussion?

30

Provision B.3.aGoals and Schedules

Paul Hartman, Larry Walker Associates

31

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)

32

Interim Goals Final Goals

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

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

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

29

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

Questions?

Discussion?

37

Provision B.3.bStrategies and Schedules

Stuart McKibbin


38

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

32

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

40

Initial Approach to Strategies and Schedules

41

• 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)

Approach to Strategies and Schedules over Time

Monitor

Assess Adapt

Implement

Watershed Wide and Enhanced Strategies

35

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

36

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

37

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

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

Questions?

Discussion?

47

Watershed Management Area Analysis

David Garcia PE


48

Outline

• Background

• What is the Watershed Management Area Analysis?

• Watershed Management Area Analysis Preliminary Results

• Mapping

• Hydromodification Management

49

Background

• New Development Projects

• Stormwater quality retention requirements

• Hydromodification requirements (Larger BMPs)

An Alternative Compliance Program is available

42

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

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

44

San Diego

53

Water Quality Equivalency-Alternative Compliance Example (Water Quality)

Source: Final Water Quality Equivalency Guidance for Region 9

46

Water Quality Equivalency-Offsite Alternative Compliance Example (Hydromodification)

Source: Final Water Quality Equivalency Guidance for Region 9

47


48


• 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

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

58

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

60


61


Coarse Sediment

• Potential coarse sediment yield areas

62Coarse

Sediment

Geology

Land Cover

Slope

Potential Critical Coarse Sediment Yield Areas

63

Potential Critical Coarse Sediment Yield Areas

64

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


67

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


70

Current Land Use

71

Current Land Use

72

Anticipated Land Use

73

Anticipated Land Use

74

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

61

Exemption Analysis

62

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

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?

79

Closing Comments, Discussion, Next Steps

Dave Ceppos, Associate Director - Center for Collaborative Policy

80

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

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

82

Questions?

Discussion?

83

Comments/Feedback

To Darcy Kuenzi, Government Affairs Officer

Riverside County Flood Control and

Water Conservation District

1995 Market Street

Riverside, CA 92501

[email protected]

84

santa margarita river wqip · progress to date 14 b2 •prioritization, potential strategies...

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