MUNICIPAL STORMWATER PERMIT UPDATE & TIMELINE Presented by Nick del Valle County of San Diego Watershed Protection Program

Agenda Status on Permit Implementation Activities: WQIP Jurisdictional Runoff Management Plan BMP Design Manual Optional Watershed Area Management Analysis Timelines & Opportunities for Engagement WPO & ERP IGP

New Requirements WQIP WMAA BMP Manual JRMP Water Quality Improvement Plan Jurisdictional Runoff Management Plan Best Management Plan Manual Watershed Management Area Analysis

Engaging Stakeholders: Water Quality Improvement Plans (WQIP) Due June 2015 County Lead (8 total)

WQIP Goals & Strategies Example goal: Eliminate ‘x’ % of persistently flowing outfalls Example Strategy: Develop a residential outreach program to help reduce or eliminate flows attributed to over- irrigation

Jurisdiction Runoff Management Plan Programs & Strategies Reduce the discharge of pollutants from storm drains Examples: Street Sweeping Education & Outreach Municipal BMPs Residential Outreach

BMP Design Manual Requirements for standard projects & Priority Development Projects (PDPs) Replaces SUSMP Joint Effort - San Diego Copermittees Public Workshops June 10, Draft BMP Design Manual 10/24/2014 Co- Permittee comments due 11/18/2014 Draft Manual Public Review February 2015 Final Manual June 2015 Local Adoption Dec 2015

Optional Alternative Compliance Optional Watershed Management Area Analysis (WMAA) Regional Mapping Effort Mapping (Soils, Channels, Slopes) HMP Exemptions Opportunities for Alternative Compliance Projects Developed Template for Watersheds

To Use Offsite Alternative Compliance... Must have completed the WMAA Jurisdictional Alternative Compliance Program Determine greater water quality benefit Program(s) may allow implementation or funding via in-lieu fee Voluntary agreement between jurisdiction/developer Built within 4 years of first PDP occupancy Section E.3.c.(1)(b)., (1)(a). and (3).

Special Studies: Wet & Dry weather San Diego River Dry-Weather Bacteria Source Tracking: Determine Sources of Bacteria During dry weather Using Genetic Tracking Technology Pilot Surfer Wet Weather Epidemiology: Links Between Levels of Bacteria & Illness in Surfers in Winter Bacteria Reference Watershed: Determine Naturally-Occurring Levels of Bacteria in Undisturbed Watersheds & Beaches Year-Round

Deliverables Timeline *Reopener pending determination of RB EO Gibson 6/27/15 WQIPs due 6/27/15 JRMP update due 6/27/15 WP ordinance update due 12/27/15 BMP Design Manual due Implementation Bacteria TMDL Reopener* 2016 JanAprJulOctJanAprJulOctJanAprJulOctJanAprJulOctJanAprJulOctJanAprJulOct

Permit Engagement Opportunities Orange County enrollment Early 2015 Riverside County enrollment Early 2016 Bacteria TMDL reopener Late 2016

Watershed Protection Ordinance (WPO) Update Schedule WPO Workgroup meetings (4/7/14; 11/6/14) County Counsel is reviewing the WPO draft comments with WPP management. December Commence Stakeholder outreach. January 2015 – Revise WPO per stakeholder comments. February/March 2015 – File Public Notice with the Clerk of the Board for the Board Letter.

Watershed Protection Ordinance (WPO) Update Schedule April 2015 – First reading of the ordinance at the Board of Supervisors. May 2015 – Second reading and adoption of the WPO at the Board of Supervisors. June 2015 – WPO becomes effective.

Enforcement Response Plan (ERP) Required components from the NPDES permit: Illicit Discharge Detection and Elimination Enforcement Development Planning Enforcement Construction Management Enforcement Existing Development Enforcement

County Unincorporated Areas Industrial ConcentrationsBordering areas Fallbrook Vista Ramona Lakeside Alpine Rancho San Diego Spring Valley San Marcos Escondido El Cajon

Industrial Inventory Total: ~180 Facilities Filers (NOI on file): 55% (Notice of Intent) Non-filers: 12% NoNAs: 33% (Notice of Non-Applicability)

County Strategy Comply with MS4 Permit Ensure industrial operators are in compliance with MS4 Permit Assist operators, as feasible, to prepare for the implementation of the re-issued Industrial General Permit (July 2015) Provide resource contact information to operators

County of San Diego Watershed Protection Program

High Priority Water Quality Conditions

BMP Design Manual (previously SUSMP) Residential > 10 units 10,000 sf Retain Biofilter Flow through with offsite 1.More “Major” development projects 2.Retention hierarchy 3.Offsite Alternative Compliance option 4.Critical Course Sediment yield area protection 5.Other: Green Streets option for redevelopment Exemption of alleys, bike lanes, trails if designed with LID or hydraulically disconnected Pre-development instead of pre-project

Green Streets Bigger BMPs Green Streets guidelines allowed for redevelopment / retrofitting existing roads without hard sizing requirements 2013 MS4 Permit Green Street Features Street Trees Permeable Pavements Bioretention Swales Reduced Impervious Width Conventional StreetGreen Street

Green Streets Life Cycle Cost Analysis: Average 35% Less Over a 20-yr Life Cycle