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Basic Training April 2011 Edition Minor Changes April 2012

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Presentation on theme: "Basic Training April 2011 Edition Minor Changes April 2012"— Presentation transcript:

1 Water Quality Management Plans for the Santa Margarita Watershed of Riverside County
Basic Training April 2011 Edition Minor Changes April 2012 Updated June 2013

2 Why are we here? Storm water and urban runoff from areas of new development and redevelopment must be managed to control impacts to: Beneficial uses of receiving waters; Integrity of streams and channels; and Natural habitats. City and county staff are responsible for implementing development regulations within their jurisdiction, including the Water Quality Management Plan program. The development community is responsible for complying with regulations that require urban runoff quality and quantity management be a part of most new projects.

3 Training Session Objectives
To learn about current requirements for Project-Specific Water Quality Management Plans for new development and redevelopment projects in the Riverside County Santa Margarita River Watershed & To learn about upcoming changes to these requirements.

4 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

5 Prerequisites for Successful Course Completion
A desire to learn about Water Quality Management Plans A willingness to participate in the learning process! A basic understanding of the development review and approval process at your agency or at the agencies where you submit plans A copy of the document, “Riverside County Water Quality Management Plan for Urban Runoff” is helpful Verify the Watershed Verify the Date A Key Document for Agencies and the Development Industry

6 Introductions Your Presenter – AEI-CASC Consulting
Jeff Endicott, P.E., BCEE, CPESC Audience Introductions Agencies Engineering Planning Building Code Enforcement Others? Development Industry Developers and Builders Planners Architects Engineers Contractors

7 Training Process Restrooms
Cell phones – turn off, set to vibrate, or set to stun A mid-session break is planned Questions We have a lot to cover “In-scope” questions – Please signal Will take them to the extent that many will benefit “Out-of-scope” questions will be deferred Goal – To complete the session within 4 hours Sticking to the process will help accomplish this goal!

8 Water Quality Management Plan Overview
Water Quality Management Plans for the Margarita Watershed of Riverside County Water Quality Management Plan Overview April 2011 Edition Minor Changes April 2012 Updated June 2013

9 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

10 Riverside County Drainage Area Management Plan (DAMP)
Describes urban runoff management strategies planned by the municipal NPDES permit holders Addresses the prescriptive and stringent requirements in the 2004 Santa Margarita River Watershed Stormwater Permit Requirements remain in effect until the Regional board approves compliance documents submitted under the 2010 Stormwater Permit. Status… Updated April 2007 Primarily a tool for Agency Staff

11 Riverside County Drainage Area Management Plan (DAMP)
Will the requirements in the permits and strategies described in the DAMP ever change? Yes! What’s driving the changes in requirements and strategies? The most recent municipal NPDES storm water permit Riverside County – Santa Margarita River Watershed Permit Order No. R , NPDES No. CAS Issued November 10, 2010

12  Listed as a Permittee under the SAR & SMR Watershed permits.
Riverside County Municipal NPDES Permits Santa Margarita River Watershed Permittees Riverside County Flood Control and Water Conservation District  County of Riverside  Murrieta  Temecula Wildomar   Listed as a Permittee under the SAR & SMR Watershed permits. By agreement with the Regional Boards, local program based on SMR permit.

13 Riverside County Drainage Area Management Plan (DAMP)
When will the WQMP program changes take place? Changes will be phased in over time Santa Margarita River Watershed Template to RWQCB by June 30, 2012 Implementation date TBD after July 30, 2012 An overview of the program changes, or evolution, will be discussed later today. In the meantime… Continue to implement the strategies and programs that have been in place for many years now! Those strategies and programs are the focus of today’s training.

14 Riverside County Drainage Area Management Plan (DAMP)
Existing Urban Runoff Management Strategies for New Development and Redevelopment as Described in the DAMP

15 DAMP Section 6 Development Planning
Covers the entire spectrum Land Use Planning General Plans General Plan Amendments Environmental Review Initial Studies Negative Declarations Environmental Impact Reports Development Review, Approval, and Permitting Conditioning Permitting Project closeout

16 Review, Approval And Permitting
Development Project Review, Approval And Permitting New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

17 Three Project Categories
Development Project Review, Approval, Permitting, And Inspection Process Redevelopment New development Other development Knowing your project category is key to understanding the requirements for the project! Today, we’ll look briefly at definitions of each category. For detailed definitions, consult program Guidance Documents (DAMP/WQMP).

18 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

19 New Development Residential/Housing
Significant Redevelopment Projects Construction of 10 or more dwelling units. Examples include: Single family dwelling units Multi-family dwelling units Condominiums Apartments

20 New Development Industrial and Commercial
Significant Redevelopment Projects Where the land area represented by the proposed map or permit is 100,000 square feet or more. Examples include: Hospitals Educational institutions Recreational facilities Mini-malls Hotels Office buildings Warehouses Light industrial facilities Heavy industrial facilities

21 New Development Automotive Repair Shops
Significant Redevelopment Projects Based on Standard Industrial Classification Codes Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations Top, Body, Upholstery Repair Shops and Paint Shops Automotive Exhaust System Repair Shops Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops Automotive Transmission Repair Shops General Automotive Repair Shops Automotive Repair Shops, NEC

22 New Development Restaurants
Significant Redevelopment Projects Where the project site is 5,000 square feet or more. Smaller restaurants are covered too, but excepted from treatment control and peak flow mgmt.* SIC Eating and Drinking Places

23 New Development Hillside Development
Significant Redevelopment Projects Where impervious surfaces are created… 5,000 square feet or more and Located on areas with known erosive soil conditions, Where the natural slope is 25% or more.

24 New Development Development Near ESAs
Significant Redevelopment Projects Where 2,500 square feet or more of impervious area is created on a proposed site or where the project increases the imperviousness of a proposed site to 10% or more of its naturally occurring condition, and… Is within or adjacent to (within 200’) or discharges directly into waters… With a Basin Plan Beneficial Use Designation of RARE (supporting plant or animal species designated as rare, threatened, or endangered) OR Listed on the CWA Section 303(d) list. Includes discharges to Areas of Special Biological Significance or within the Western Riverside County Multi- Species Habitat Conservation Plan area or equivalent sensitive area.

25 New Development Parking Lots
Significant Redevelopment Projects Where 5,000 square feet or more of impervious surface will be created for temporary parking or storage of motor vehicles and includes “sites” and “facilities.”

26 New Development Streets, Roads, Highways, Freeways
Significant Redevelopment Projects Where 5,000 square feet or more of paved surface is created for the transportation of automobiles, trucks, motorcycles, and other vehicles.

27 New Development Retail Gasoline Outlets
Significant Redevelopment Projects Retail gasoline outlets in the SMR Watershed that are… 5,000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more vehicles per day.

28 Significant Redevelopment
New Development & Significant Redevelopment Projects Addition, Creation, or Replacement of 5,000 square feet or more of impervious surface on an already developed site of a listed project category. Examples include (but of course, are not limited to)… Impervious or compacted soil parking lots (SAR Watershed). Additional buildings and structures. Extension of the footprint of a building. Excludes… Routine Maintenance.

29 Significant Redevelopment
New Development & Significant Redevelopment Projects The 50% Rule for Redevelopment Projects Where a Priority Project is a Redevelopment Project and replaces < 50% of the impervious surfaces on an existing developed site, and The site was not previously subject to Priority Development Project requirements, then The WQMP design standards apply only to the addition or replacement, and not to the entire developed site. ≥ 50% of the impervious surfaces on an existing developed site, then The WQMP design standards apply to the entire development.

30 Priority Development Project Summary New Development and Redevelopment
The descriptions of Priority Development Projects in this presentation include generalized summaries. For project-specific definitions, consult the DAMP or WQMP. Residential - Housing Industrial – Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets, Roads, Highways, Freeways Retail Gasoline Outlets Significant Redevelopment

31 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

32 Other Development Other Development Projects Projects not meeting the definition of New Development or Significant Redevelopment. This is a pretty small group of projects and is likely to be limited to infill-type projects

33 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

34 First Things First! What Is A WQMP?
Preliminary Water Quality Management Plan During Entitlement* Water Quality Management Plan The WQMP is a project-specific plan of Best Management Practices (BMPs), including site design, source controls, and treatment controls, to address post-construction urban runoff quality and quantity to protect receiving waters. A project-specific WQMP must be submitted and approved prior to the first discretionary project approval or permit for all Significant Redevelopment and New Development projects. WQMP

35 Project Lifecycle and WQMPs
DEVELOPMENT This is the domain of the Water Quality Management Plan The WQMP RAW LAND PROJECT PLANNING AND DESIGN PROJECT CONSTRUCTION PROJECT O&M REDEVELOPMENT This is the domain of the Storm Water Pollution Prevention Plan The SWPPP

36 Project Lifecycle and WQMPs
DEVELOPMENT This is the domain of the Water Quality Management Plan The WQMP RAW LAND PROJECT PLANNING AND DESIGN PROJECT CONSTRUCTION PROJECT O&M REDEVELOPMENT This is the domain of the Storm Water Pollution Prevention Plan The SWPPP Pollution Prevention Is Now Part Of Every Project Stage!

37 Preliminary Project-Specific WQMP
Water Quality Management Plan During Entitlement* A Preliminary Project-Specific WQMP may be required When a project is subject to discretionary approval during the planning and entitlement process (tentative tract map, parcel map, or subdivision map) and Will be subject to ministerial approvals for subsequent grading or building permits Submit WQMP with project application

38 Preliminary Project-Specific WQMP
Water Quality Management Plan During Entitlement* Level of detail in a Preliminary Project-Specific WQMP will depend on the overall project design at the time project approval is sought. Key point – The Preliminary WQMP needs to be specific enough to identify the land required for BMP implementation! A Final Project-Specific WQMP that is in substantial conformance with the Preliminary Project-Specific WQMP (and in full conformance with the WQMP Guidance) will be required prior to issuance of any building or grading permit. Many cities have adopted City-specific requirements to guide the Preliminary WQMP process

39 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

40 Standard Conditions Help Implement WQMPs
Conditions of Approval Condition of Approval And/or Permit Conditions Assist in compliance with the statewide Construction General Permit and the Industrial General Permit. Assist in compliance with adopted Total Maximum Daily Load (TMDL) allocations. Requires that structural BMPS are installed in conformance with approved plans. Requires that applicants are prepared to implement all non-structural BMPS included in Conditions of Approval Santa Margarita River Watershed - limits grading during the wet season without additional BMPs in compliance with Third-Term SMR MS4 Permit.

41 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

42 Conditions for “Other” Projects (No WQMP)
Condition of Approval And/or Permit Conditions In addition to the “Conditions of Approval” reviewed a moment ago… Other Projects shall incorporate Site Design BMPs and Source Control BMPs into project plans as applicable and feasible. Other Projects may, on a case-by-case basis, be required to incorporate Treatment Control BMPs. Key point: recommended for projects discharging to 303(d) listed water bodies! Key point: highly recommended for projects discharging to waters with an adopted TMDL. Requirements for “Other Projects” will be included in… Conditions of Approval or Grading or Building Permit Conditions.

43 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

44 Final Project-Specific WQMP
Water Quality Management Plan Water Quality Management Plan The Final Project-Specific WQMP… Is a planning level document… Is not expected to contain final BMP design drawings and details… Is expected to identify and show the location of structural BMPs… Is expected to provide design parameters and final design concepts of treatment BMPs… Must be approved prior to issuance of building or grading permits. WQMP

45 Final Project-Specific WQMP
Water Quality Management Plan The Final Project-Specific WQMP will contain… Site Design BMPs. Source Control BMPs. Treatment Control BMPs. BMP maintenance descriptions. BMP funding description. BMP operation responsibilities. Must conform to the Guidance! Many cities supplement the Guidance with City-specific requirements.

46 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

47 Mandatory Notes for Construction Plans
Building or Grading Permits DAMP Requirements Prior to Grading/Building Permits Requires a number of standard notes on construction plans as part of the grading and building permit process. These notes are detailed in the DAMP and won’t be covered here.

48 Grading and Building Permits Are Issued After…
Building or Grading Permits For Redevelopment and New Development Projects… Final Project-Specific WQMP is approved. Plan Check verifies that… BMPs from WQMP are incorporated into plans. Standard Notes have been placed on plans. Conditions of Approval have been met. For Other Projects… Construction plans incorporate site design and source control BMPs. Condition of Approval have been met.

49 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

50 Tracking, Inspection, and Enforcement
These subjects will be covered in other training sessions.

51 Review, Approval, Permitting, And Inspection Process
Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Condition of Approval And/or Permit Conditions Building or Grading Permits Tracking, Inspection, And Enforcement Conditions of Approval Permit Closeout *Projects subject to discretionary approval during land use entitlement and ministerial approval for subsequent permits may be required to submit a preliminary project-specific WQMP.

52 Permit Closeout, Certificates of Use and Occupancy
Applicants will be required to demonstrate that: All structural BMPs have been constructed and installed in conformance with approved plans and specifications. A mechanism or agreement acceptable to the Co-Permittee has been executed for the long-term funding and implementation, operation, maintenance, repair, and/or replacement of BMPs. The applicant is prepared to implement all non-structural BMPs. An adequate number of copies of the project-specific WQMP, if applicable, are available onsite. Facilities subject to the Industrial General Permit (IGP) have provided proof of coverage under the IGP by providing a copy of the Notice of Intent (NOI) submitted to the State Board and/or a copy of the notification of the issuance of a Waste Discharge Identification (WDID) Number.

53 Summary of Requirements
Post-construction water pollution control, a requirement for many years, is now being more rigorously enforced! A WQMP is required for all but the smallest of projects. Final Project-Specific WQMP is required before issuance of grading/building permits. Preliminary Project-Specific WQMP may be required during project entitlement phase. Changes to the post-construction water pollution control program are forthcoming… Until the changes are in place, the program that has been in place for the last few years must continue to be implemented.

54 Water Quality Management Plan Fundamentals
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Water Quality Management Plan Fundamentals April 2011 Edition Minor Changes April 2012 Updated June 2013

55 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

56 Determining Project Category
A correct Project Category determination is essential! The Project Category is a key factor in… Deciding whether a WQMP is required! Identifying the pollutants likely to be associated with the project. The correct Project Category is easy to determine for most projects. Projects that fall into the “gray areas” of the category definitions will require careful consideration! An incorrect determination of Project Category could create significant future headaches such as… Permit enforcement actions against the agency or owner. Requirements to retrofit a complete or near-complete project.

57 Determining Project Category
Use the Checklist included in DAMP. Figure 6-2b – SMR Watershed. Provides a place to document category determination! WQMP Guidance Document Section 3 provides a narrative description of each project category.

58 Let’s Walk Thru The Checklist
Sample Checklist - DAMP Figure 6-2b. The top area is for basic project information.

59 Let’s Walk Thru The Checklist
Sample Checklist - DAMP Figure 6-2b. The middle area describes Priority Project Categories. Check “Yes” or “No” for the subject project.

60 Let’s Walk Thru The Checklist
Sample Checklist - DAMP Figure 6-2b The bottom area tells you whether a WQMP is required.

61 Determining Project Category - Summary
The Checklist is easy to use! If a project has attributes of one or more of the Priority Development Project Categories, then a WQMP is required. WQMP applies to the entire project for new development. See the “50% Rule” to determine where the WQMP applies for significant redevelopment.

62 Determining Project Pollutants
Expected Project Pollutants depend on the Project Category! WQMP Exhibit B identifies expected pollutants for each project category.

63 Determining Project Pollutants
P=A Potential Pollutant N=Not a Potential Pollutant Exhibit B is easy to use! Exhibit B is easy to use!

64 Determining Project Pollutants – Example

65 Determining Project Pollutants - Example
Sediment/Turbidity - A potential pollutant (Note 1) Nutrients – A potential pollutant (Note 1) Organic Compounds – A potential pollutant (Note 5) Trash and Debris – A potential pollutant Oxygen Demanding Substances – A potential pollutant (Note 1) Bacteria and Viruses – A potential pollutant (Note 3) Oil and Grease – A potential pollutant Pesticides – A potential pollutant (Note 1) Metals – A potential pollutant Note 1 – A potential pollutant if landscaping or open area exists on the project site Note 3 – A potential pollutant if land use involves animal waste Note 5 – Specifically solvents

66 Determining Project Pollutants
Stick with Exhibit B unless you have a very good reason to deviate! If you deviate, document your reasons in the project file…you may be called on later to explain the change. Pay particular attention to the “Notes” at the bottom of the table.

67 Identifying the Project Watershed and Sub-Watershed
Identify the project watershed… Santa Margarita River Watershed On-line tool available at

68 Identifying the Project Watershed and Sub-Watershed
Identify the sub-watershed… The Basin Plan has a nice list of sub-watersheds Remember to consider adopted Basin Plan Amendments!

69 Identifying the Project Watershed
Correct identification of the watershed and sub-watershed is critical to identification of Receiving Waters, Impairments, and Pollutants of Concern. Example Situation (From 2010 CWA Section 303(d) List and TMDLs) Murrieta Creek – Impaired due to Chlorpyrifos, Copper, Iron, Manganese, Nitrogen, Phosphorus, and Toxicity. Santa Margarita River (Upper) – Impaired due to Phosphorus and Toxicity. Santa Margarita River (Lower) – Impaired due to Enterococcus, Fecal Coliform, Phosphorus, and Total Nitrogen. Example Ramifications All three waters are in the Santa Margarita River watershed. Discharges to all three waters require extra attention to Phosphorus due to the impairments. Discharges to Murrieta Creek require extra attention to Chlorpyrifos and Metals due to impairments.

70 Identifying Project Receiving Waters
Project watershed and sub-watershed provide for receiving water identification. Maps from Flood Control, USGS, and others are useful in finding the receiving waters.

71 Identifying Project Receiving Waters
Proximate Receiving Waters – Generally receiving waters closest to your project. A precise definition has not been established. When TMDLs come into play, they are likely to push the “Proximate Threshold” further downstream. Downstream Receiving Waters – Include all receiving waters that could receive drainage from the project site.

72 Identifying Receiving Water Impairments
Impairments of receiving waters can be obtained from several sources… Impairment maps (Verified April 2011) California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL (Verified April 2011)

73 Identifying Receiving Water Impairments
Santa Margarita River Watershed Map Verified June 2013

74 Identifying Receiving Water Impairments
303(d) list water quality limited (impaired) segments: (Verified June 2013) Download the list or use the on-line tool. Make sure you are viewing the combined list (Categories 4a, 4b, and 5).

75 Identifying Receiving Water Impairments
Receiving Water Names Pollutant Stressors TMDL Status

76 Identifying Receiving Water Impairments
Adopted Total Maximum Daily Loads (TMDLs) are important to consider. TMDLs include requirements that address specific pollutant stressors in receiving waters.

77 Identifying Receiving Water Impairments
Example TMDL for Penasquitos Lagoon:

78 Identifying Receiving Water Impairments
An adopted TMDL changes the Basin Plan. For sediment in Penasquitos Lagoon, the Basin Plan’s narrative objective…

79 Identifying Receiving Water Impairments
Changes to a numeric sediment objective in the form of Wasteload Allocations for point sources, and Load Allocations for non-point sources.

80 Identifying Receiving Water Impairments
The TMDL identifies responsible parties.

81 Identifying Receiving Water Impairments
The TMDL identifies things the responsible parties must do to comply with the TMDL.

82 Identifying Pollutants of Concern
Pollutants of Concern (POC) are those Project Pollutants that have been identified as Pollutant Stressors in Project Receiving Waters 303(d) list pollutant stressors Constituents addressed in TMDLs Project Pollutants Receiving Water Pollutant Stressors POC

83 Identifying Pollutants of Concern
Addressing Pollutants Associated with Development Identifying Pollutants of Concern Address these pollutants using BMPs Project Pollutants Receiving Water Pollutant Stressors POC Address these pollutants using BMPS with a High or Medium effectiveness More on this later!

84 Post Construction Best Management Practices
Urban Runoff Controls BMPs Design Site Control Treatment Source Lets start off by talking about some of the regulations that govern water pollution control.

85 Post Construction Controls Site Design BMPs
Urban Runoff Controls BMPs Design Site Control Treatment Source Lets start off by talking about some of the regulations that govern water pollution control.

86 Post Construction Controls Site Design BMPs
Reduce runoff. Increase Infiltration. Reduce the pollutant transport mechanism. Minimize difference between pre and post development runoff . Reduce the size of structural controls (filtering devices).

87 Post Construction Controls Site Design BMPs

88 Post Construction Controls Site Design BMPs
Strategy “Do what you can where you can.” (Geoff Brosseau, BASMAA) Integrate BMPs throughout the site. Every surface presents an opportunity! Landscaping. Hardscaping. Use drainage as an organizing element.

89 Post Construction Controls Source Control BMPs
Urban Runoff Controls BMPs Design Site Control Treatment Source Lets start off by talking about some of the regulations that govern water pollution control.

90 Post Construction Controls Source Control BMPs
Reduce potential for rainfall, runoff, and pollutants to contact each other. Lets start off by talking about some of the regulations that govern water pollution control.

91 Post Construction Controls Source Control BMPs
Lets start off by talking about some of the regulations that govern water pollution control.

92 Post Construction Controls Source Control BMPs
Strategy Protect pollutant sources from contact with… Rainfall. Runoff. Integrate pollution prevention behaviors into daily routines… Educate kids, tenants, owners, employees. Mandate thorough activity restrictions and prohibitions. Lets start off by talking about some of the regulations that govern water pollution control.

93 Post Construction Controls Treatment Control BMPs
Urban Runoff Controls BMPs Design Site Control Treatment Source Lets start off by talking about some of the regulations that govern water pollution control.

94 Post Construction Controls Treatment Control BMPs
Engineered systems designed and constructed to treat the adverse impacts of urban runoff. BMPs that remove pollutants by… Filtration. Media absorption. Other physical, biological, or chemical processes. Lets start off by talking about some of the regulations that govern water pollution control.

95 Post Construction Controls Treatment Control BMPs
Figure 24 - Example Filtration Treatment Control BMP Lets start off by talking about some of the regulations that govern water pollution control.

96 Post Construction Controls Treatment Control BMPs
Select treatment controls based on Project Pollutants. When Project Pollutants include Pollutant Stressors in impaired Receiving Waters, Treatment Control BMPs of Medium or High effectiveness must be used. Use WQMP Guidance Document Table 3 to identify Treatment Control BMPs. Lets start off by talking about some of the regulations that govern water pollution control.

97 Post Construction Controls Treatment Control BMPs
Lets start off by talking about some of the regulations that govern water pollution control. H=High M=Medium L=Low U=Unknown

98 Post Construction Controls Treatment Control BMPs
Example 1 – Find a Medium or Highly effective Treatment Control BMP for Nutrients Lets start off by talking about some of the regulations that govern water pollution control. Detention, Infiltration, Wet Ponds or Wetlands, and Filtration System BMPs will meet the treatment goals.

99 Post Construction Controls Treatment Control BMPs
Example 2 – Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens Lets start off by talking about some of the regulations that govern water pollution control. Infiltration BMPs will meet the treatment goals. Filtration BMP will meet the treatment goals.

100 Post Construction Controls Treatment Control BMPs
Example 3 – Find a Medium or Highly effective TC BMP for Pathogens and that also treats for Oils and Grease. Lets start off by talking about some of the regulations that govern water pollution control. Filtration BMP will meet the treatment goals. Biofilter BMP + Infiltration BMP will meet the treatment goals.

101 Post Construction Controls Treatment Control BMPs
Strategy Stick with the BMPs recommended in Table 3 for various pollutants. If you deviate, document your reasons in the project file…you may be called on later to explain the change. Pay particular attention to the “Notes” at the bottom of the table. BMP Treatment Trains (two or more BMPs in series) can provide for a wide range of pollutant removal. Latest Information on BMPs Caltrans Treatment BMP Technology Report – April 2008. An excellent source of well-researched information on BMP performance. See Report CTSW-RT

102 Summary of BMP Deployment Strategy
2 3

103 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

104 Water Quality Management Plans - Future
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Water Quality Management Plans - Future April 2011 Edition Minor Changes April 2012 Updated June 2013

105 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

106 Riverside County- SMR Watershed Water Quality Management Plans (WQMPs)
Changes in the WQMP program and requirements are coming in the foreseeable future! What’s driving theses changes? The most recent municipal NPDES storm water permits. Riverside County – Santa Margarita River Watershed Permit Order No. R , NPDES No. CAS Issued November 10, 2010 Does this training session cover the details? No. The details are still being worked out. This training session gives a look ahead at what to expect.

107 Water Quality Management Plans – Future Priority Development Projects
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Water Quality Management Plans – Future Priority Development Projects April 2011 Edition Minor Changes April 2012 Updated June 2013

108 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

109 Priority Development Project Transition New Development and Redevelopment
Current PDPs Residential - Housing Industrial – Commercial Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets, Roads, Highways, Freeways Retail Gasoline Outlets Significant Redevelopment Future PDPs New Development (New, combines categories) Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets, Roads, Highways, Freeways Retail Gasoline Outlets Significant Redevelopment Projects ≥ 1 ac (New)

110 Priority Development Project New Development
Combines the old Residential, Housing, Commercial, and Industrial PDPs Where 10,000 square feet or more of impervious surfaces is created collectively over the entire site. Development projects within the planning and building authority of the Co-Permittees. Examples include: Commercial Industrial Residential Single Family Multi-Family Mixed Use Public or Private

111 Priority Development Project Automotive Repair Shops
Where one of more of the following SIC codes applies: Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations Top, Body, Upholstery Repair Shops and Paint Shops Automotive Exhaust System Repair Shops Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops Automotive Transmission Repair Shops General Automotive Repair Shops Automotive Repair Shops, NEC

112 Priority Development Project Restaurants
Where the area of land development is 5,000 square feet or more. Smaller restaurants are also included, but excepted from structural treatment control BMP and numeric sizing requirement and hydromodification. SIC Eating and Drinking Places

113 Priority Development Project Hillside Development
Where development creates 5,000 square feet or more of impervious surface located… On areas with known erosive soil conditions, Where grading will occur where the natural slope is 25% or more.

114 Priority Development Project Development Near ESAs
Where 2,500 square feet or more of impervious area is created or increases the imperviousness of a proposed site to 10% or more of its naturally occurring condition, and… Is within or adjacent to (within 200’) or discharges directly into waters… With a Basin Plan Beneficial Use Designation of… RARE. Within an area in the… Riverside County Multi-Species Habitat Conservation Plan. Natural Communities Conservation Program. Area of Special Biological Significance (ASBS). Listed on the CWA Section 303(d) list. Or equivalent environmentally sensitive area.

115 Priority Development Project Parking Lots
Where a parking lot of 5,000 square feet or more is created and potentially exposed to runoff. “Parking Lot” is defined as a land area or facility for the temporary parking or storage of motor vehicles. Added specific reference to “Impervious Parking Lots.”

116 Priority Development Project Streets, Roads, Highways, Freeways
Where 5,000 square feet or more of paved surface is created for the transportation of automobiles, trucks, motorcycles, and other vehicles. Exempts public works projects from developing a project- specific WQMP if Co-Permittees develop revised road design and post-construction BMP guidance. Unpaved roads not covered here. Co-Permittees must develop post-construction erosion and sediment control BMPs for unpaved roads.

117 Priority Development Project Retail Gasoline Outlets
Retail gasoline outlets that are… 5,000 square feet or more in area OR Have a projected Average Daily Traffic (ADT) of 100 or more vehicles per day.

118 Priority Development Project Significant Redevelopment
On an already developed site where 5,000 square feet or more of impervious surface is… Created, added, or replaced and the existing site falls into one of the Priority Development Project categories (SMR). Examples include… Additional buildings and structures. Extension of a building footprint. Excludes… Routine Maintenance.

119 Priority Development Project Projects ≥ 1 Acre
All other post-construction pollutant-generating new development projects that result in a disturbance of one acre more of land. This is a new Priority Development Project category in the Santa Margarita River Watershed.

120 Summary of Future Priority Development Project Categories
New Development (New) Automotive Repair Shops Restaurants Hillside Development Development Near ESAs Parking Lots Streets, Roads, Highways, Freeways Retail Gasoline Outlets Significant Redevelopment Projects ≥ 1 ac (New) The descriptions of future Priority Development Project categories in this presentation include generalized summaries. For project-specific definitions, consult program guidance documents when they become available. Until then, refer to the respective Municipal NPDES Permit.

121 Water Quality Management Plans – Future Best Management Practices
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Water Quality Management Plans – Future Best Management Practices April 2011 Edition Minor Changes April 2012 Updated June 2013

122 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

123 A More Specific Approach to Best Management Practices
Tier 1 On-Site Retention (LID). Examples: Capture and Infiltrate, Evaporate, or Transpire Capture and Utilize (Harvest) Tier 2 Biotreatment (LID). Examples: Biofiltration Vegetated Swales and Buffer Strips Tier 3 Conventional Treatment Controls. Examples: Extended Detention Basins Proprietary Treatment Systems (“BMPs in a Box”) LID = Low Impact Development

124 A More Specific Approach to Best Management Practices
Tier 1 Required for All Priority Development Projects. Except where infeasible. Specific feasibility criteria are being developed. Tier 2 Required for Volumes not Addressed by Tier 1. Tier 3 Required for Volumes not Addressed by Tier 1 or 2. Must also Participate in a LID Waiver Program (SMR) If Infeasible, Participate in an In-Lieu Program (SAR) Feasibility criteria and other details are under development.

125 Tier 1 On-Site Retention (LID) Pervious Pavement (Pavers)

126 Tier 1 On-Site Retention (LID) Infiltration Trench

127 Tier 1 On-Site Retention (LID) Infiltration Basin

128 On-Site Retention (LID) Rainwater Capture and Reuse
Tier 1 On-Site Retention (LID) Rainwater Capture and Reuse RainSpace™ Rainwater Storage Chamber diagram used with permission of Brad Peery, RainTech Rainwater Control Systems,

129 Tier 2 Biotreatment (LID) Biofiltration (With Underdrains)

130 Tier 2 Biotreatment (LID) Vegetated Swale

131 Tier 3 Conventional Treatment Controls Austin-Type Sand Filter

132 Tier 3 Conventional Treatment Controls Extended Detention Basin

133 Tier 3 Conventional Treatment Controls Insert Devices

134 A More Specific Approach to Best Management Practices
Source Control BMPs continue to be required, as applicable, in conjunction with Tier 1, Tier 2, and Tier 3 BMPs.

135 A More Specific Approach to Best Management Practices
New BMP-related requirements and programs. BMP Program Implementation. Similar requirements for submittal of WQMPs. Added emphasis on recording easements and covenants to help with the WQMP handoff to subsequent owners. BMP Construction Verification. Added requirements for Co-Permittees to verify that BMPs are designed, constructed and functional per the WQMP. BMP Operation and Maintenance. Added tracking location and type of installed BMPs. Added requirements for BMP maintenance be verified via inspections as frequent as annually. Enforcement at Development Sites. Specific requirement to enforce storm water ordinances at development sites.

136 Water Quality Management Plans – Future Hydromodification
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Water Quality Management Plans – Future Hydromodification April 2011 Edition Minor Changes April 2012 Updated June 2013

137 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

138 Hydromodification Distinct definitions for each watershed…
Hydromodification-SMR: The change in the natural watershed hydrologic processes and runoff characteristics (i.e., interception, infiltration, overland flow, interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and sediment transport. In addition, alteration of stream and river channels, such as stream channelization, concrete lining, installation of dams and water impoundments, and excessive streambank and shoreline erosion are also considered hydromodification, due to their disruption of natural watershed hydrologic processes. Summary: Hydromodification is triggered by changes in hydrologic processes associated with traditional development.

139 Hydromodification Hydromodification Management
Goal – Geomorphic stability in channels. Santa Margarita River Watershed Presumption – Priority Development Projects will need to address hydromodification. Procedures to be developed. Requires detailed analysis. “Off ramps” may ease compliance burden for some projects.

140 Undermined Footings Lead to Settlement and Bridge Failure.
Hydromodification Undermined Footings Lead to Settlement and Bridge Failure.

141 Water Quality Management Plans – Future Schedule of Changes
Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Water Quality Management Plans – Future Schedule of Changes April 2011 Edition Minor Changes April 2012 Updated June 2013

142 Today’s Agenda Welcome and Training Process
Water Quality Management Plans – Today Overview Fundamentals Break Water Quality Management Plans – Future Priority Development Projects Best Management Practices Hydromodification Schedule for Changes

143 Schedule for Changes to the Development and Redevelopment Program
When will the changes take place? Changes will be phased in over time Santa Margarita River Watershed Template to RWQCB by June 30, 2012 Implementation date TBD after July 30, 2012 In the meantime… Continue to implement the strategies and programs that have been in place for many years now!

144 Questions?

145 Water Quality Management Plans for the Santa Ana and Santa Margarita Watersheds of Riverside County
Presented by Jeffrey D. Endicott, P.E., BCEE, CPESC, QSD AEI-CASC Consulting 1470 E. Cooley Drive, Colton, CA 92324 Ph: Cell: April 2011 Edition Minor Changes April 2012 Updated June 2013


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