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

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Presentation on theme: "Water Quality Management Plans for the Santa Margarita Watershed of Riverside County Basic Training April 2011 Edition Minor Changes April 2012 Updated."— Presentation transcript:

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

3 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.

4 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.

5 4 Todays 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

6 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 http://rcflood.org/NPDES/ A Key Document for Agencies and the Development Industry

7 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 Others?

8 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!

9 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

10 9 Todays 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

11 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 http://rcflood.org/NPDES/ Primarily a tool for Agency Staff

12 Riverside County Drainage Area Management Plan (DAMP) 11 Will the requirements in the permits and strategies described in the DAMP ever change? Yes! Whats driving the changes in requirements and strategies? The most recent municipal NPDES storm water permit Riverside County – Santa Margarita River Watershed Permit Order No. R9-2010-0016, NPDES No. CAS0108766 Issued November 10, 2010

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

14 Riverside County Drainage Area Management Plan (DAMP) 13 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 todays training.

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

16 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

17 Development Project Review, Approval And Permitting New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

18 17 Three Project Categories Redevelopment New development Other development Development Project Review, Approval, Permitting, And Inspection Process Knowing your project category is key to understanding the requirements for the project! Today, well look briefly at definitions of each category. Guidance Documents For detailed definitions, consult program Guidance Documents (DAMP/WQMP).

19 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

20 19 New Development Residential/Housing Construction of 10 or more dwelling units. Examples include: Single family dwelling units Multi-family dwelling units Condominiums Apartments New Development & Significant Redevelopment Projects

21 20 New Development Industrial and Commercial 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 New Development & Significant Redevelopment Projects

22 21 New Development Automotive Repair Shops Based on Standard Industrial Classification Codes 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top, Body, Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops, NEC New Development & Significant Redevelopment Projects

23 22 New Development Restaurants 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 5812 - Eating and Drinking Places New Development & Significant Redevelopment Projects

24 23 New Development Hillside Development 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. New Development & Significant Redevelopment Projects

25 24 New Development Development Near ESAs 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. New Development & Significant Redevelopment Projects

26 25 New Development Parking Lots 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. New Development & Significant Redevelopment Projects

27 26 New Development 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. New Development & Significant Redevelopment Projects

28 27 New Development Retail Gasoline Outlets 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. New Development & Significant Redevelopment Projects

29 28 Significant Redevelopment 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. New Development & Significant Redevelopment Projects

30 29 Significant Redevelopment 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. Where a Priority Project is a Redevelopment Project and replaces 50% of the impervious surfaces on an existing developed site, then The WQMP design standards apply to the entire development. The 50% Rule for Redevelopment Projects New Development & Significant Redevelopment Projects

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

32 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

33 32 Other Development 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 Other Development Projects

34 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

35 34 First Things First! What Is A WQMP? W Water Q Quality M Management P Plan WQMP 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. WQMP 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. Preliminary Water Quality Management Plan During Entitlement*

36 35 Project Lifecycle and WQMPs DEVELOPMENT 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 This is the domain of the Water Quality Management Plan The WQMP

37 This is the domain of the Water Quality Management Plan The WQMP 36 Project Lifecycle and WQMPs DEVELOPMENT 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!

38 37 Preliminary Project-Specific WQMP 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 Preliminary Water Quality Management Plan During Entitlement*

39 38 Preliminary Project-Specific WQMP 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. Preliminary Water Quality Management Plan During Entitlement* Many cities have adopted City-specific requirements to guide the Preliminary WQMP process

40 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

41 40 Standard Conditions Help Implement WQMPs 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. Conditions of Approval Condition of Approval And/or Permit Conditions

42 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

43 42 Conditions for Other Projects (No WQMP) 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. Condition of Approval And/or Permit Conditions

44 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

45 44 Final Project-Specific WQMP W Water Q Quality Management P 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. Final Project Specific Water Quality Management Plan

46 45 Final Project-Specific WQMP 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! Final Project Specific Water Quality Management Plan Many cities supplement the Guidance with City-specific requirements.

47 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

48 47 Mandatory Notes for Construction Plans 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 wont be covered here. Building or Grading Permits

49 48 Grading and Building Permits Are Issued After… 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. Standard Notes have been placed on plans. Condition of Approval have been met. Building or Grading Permits

50 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

51 50 Tracking, Inspection, and Enforcement These subjects will be covered in other training sessions. Tracking, Inspection, And Enforcement

52 Development Project Review, Approval, Permitting, And Inspection Process New Development & Significant Redevelopment Projects Other Development Projects Preliminary Water Quality Management Plan During Entitlement* Final Project Specific Water Quality Management Plan 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.

53 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. Permit Closeout

54 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.

55 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

56 55 Todays 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

57 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.

58 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.

59 58 Lets Walk Thru The Checklist Sample Checklist - DAMP Figure 6-2b. The top area is for basic project information.

60 59 Lets 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.

61 60 Lets Walk Thru The Checklist Sample Checklist - DAMP Figure 6-2b The bottom area tells you whether a WQMP is required.

62 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.

63 62 Determining Project Pollutants Expected Project Pollutants depend on the Project Category! WQMP Exhibit B identifies expected pollutants for each project category.

64 63 Determining Project Pollutants Exhibit B is easy to use! P=A Potential Pollutant N=Not a Potential Pollutant

65 64 Determining Project Pollutants – Example

66 65 Determining Project Pollutants - Example Project Pollutants 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

67 66 Determining Project Pollutants 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.

68 67 Identifying the Project Watershed and Sub-Watershed Identify the project watershed… Santa Margarita River Watershed On-line tool available at http://rcflood.org/NPDES/

69 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!

70 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.

71 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.

72 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.

73 Identifying Receiving Water Impairments 72 Impairments of receiving waters can be obtained from several sources… Impairment maps http://rcflood.org/NPDES/ (Verified April 2011) http://rcflood.org/NPDES/ California Clean Water Act Section 303(d) list of impaired water quality segments and TMDL http://waterboards.ca.gov/water_issues/programs/tmdl/303 d_lists2006_epa.shtml (Verified April 2011) http://waterboards.ca.gov/water_issues/programs/tmdl/303 d_lists2006_epa.shtml

74 73 Identifying Receiving Water Impairments Santa Margarita River Watershed Map http://rcflood.org/downloads/NPDES/Documents/Developers/Policies/SMR_Watershed_Impairments.pdf Verified June 2013

75 74 Identifying Receiving Water Impairments 303(d) list water quality limited (impaired) segments: http://www.waterboards.ca.gov/water_issues/programs/tmdl/int egrated2010.shtml (Verified June 2013) http://www.waterboards.ca.gov/water_issues/programs/tmdl/int egrated2010.shtml Download the list or use the on-line tool. Make sure you are viewing the combined list (Categories 4a, 4b, and 5).

76 75 Identifying Receiving Water Impairments Receiving Water Names Pollutant Stressors TMDL Status

77 76 Identifying Receiving Water Impairments Adopted Total Maximum Daily Loads (TMDLs) are important to consider. http://www.waterboards.ca.gov/sandiego/water_issues/progra ms/tmdls/index.shtml TMDLs include requirements that address specific pollutant stressors in receiving waters.

78 77 Identifying Receiving Water Impairments Example TMDL for Penasquitos Lagoon: http://www.waterboards.ca.gov/sandiego/board_decisions/adop ted_orders/2012/R9-2012-0033_signed.pdf

79 78 Identifying Receiving Water Impairments An adopted TMDL changes the Basin Plan. For sediment in Penasquitos Lagoon, the Basin Plans narrative objective…

80 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.

81 80 Identifying Receiving Water Impairments The TMDL identifies responsible parties.

82 81 Identifying Receiving Water Impairments The TMDL identifies things the responsible parties must do to comply with the TMDL.

83 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

84 83 Identifying Pollutants of Concern Project Pollutants Receiving Water Pollutant Stressors POC Addressing Pollutants Associated with Development Address these pollutants using BMPs Address these pollutants using BMPS with a High or Medium effectiveness More on this later!

85 84 Post Construction Best Management Practices Urban Runoff Controls Site Design BMPs Treatment Control BMPs Source Control BMPs

86 85 Post Construction Controls Site Design BMPs Urban Runoff Controls Site Design BMPs Treatment Control BMPs Source Control BMPs

87 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).

88 87 Post Construction Controls Site Design BMPs

89 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.

90 89 Post Construction Controls Source Control BMPs Urban Runoff Controls Site Design BMPs Treatment Control BMPs Source Control BMPs

91 90 Post Construction Controls Source Control BMPs Reduce potential for rainfall, runoff, and pollutants to contact each other.

92 91 Post Construction Controls Source Control BMPs

93 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.

94 93 Post Construction Controls Treatment Control BMPs Urban Runoff Controls Site Design BMPs Treatment Control BMPs Source Control BMPs

95 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.

96 95 Post Construction Controls Treatment Control BMPs Figure 24 - Example Filtration Treatment Control BMP

97 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.

98 97 Post Construction Controls Treatment Control BMPs H=High M=Medium L=Low U=Unknown

99 98 Post Construction Controls Treatment Control BMPs Example 1 – Find a Medium or Highly effective Treatment Control BMP for Nutrients Detention, Infiltration, Wet Ponds or Wetlands, and Filtration System BMPs will meet the treatment goals.

100 99 Post Construction Controls Treatment Control BMPs Example 2 – Find a Medium or Highly effective Treatment Control BMP for Nutrients and Pathogens Infiltration BMPs will meet the treatment goals. Filtration BMP will meet the treatment goals.

101 100 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. Filtration BMP will meet the treatment goals. Biofilter BMP + Infiltration BMP will meet the treatment goals.

102 101 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-08-167.02.02

103 Summary of BMP Deployment Strategy 2 3

104 103 Todays 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

105 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

106 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 105 Todays Agenda

107 Riverside County- SMR Watershed Water Quality Management Plans (WQMPs) 106 Changes in the WQMP program and requirements are coming in the foreseeable future! Whats driving theses changes? The most recent municipal NPDES storm water permits. Riverside County – Santa Margarita River Watershed Permit Order No. R9-2010-0016, NPDES No. CAS0108766 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.

108 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

109 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 108 Todays Agenda

110 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 109 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)

111 110 Priority Development Project New Development 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 Combines the old Residential, Housing, Commercial, and Industrial PDPs

112 111 Priority Development Project Automotive Repair Shops Where one of more of the following SIC codes applies: 5013 - Motor Vehicle Supplies and New Parts 5014 Tires and Tubes 5541 Gasoline Service Stations 7532 - Top, Body, Upholstery Repair Shops and Paint Shops 7533 - Automotive Exhaust System Repair Shops 7534 - Tire Retreading and Repair Shops 7536 Automotive Glass Replacement Shops 7537 - Automotive Transmission Repair Shops 7538 - General Automotive Repair Shops 7539 - Automotive Repair Shops, NEC

113 112 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 5812 - Eating and Drinking Places

114 113 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.

115 114 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.

116 115 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.

117 116 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.

118 117 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.

119 118 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.

120 119 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.

121 Summary of Future Priority Development Project Categories 120 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. 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)

122 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

123 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 122 Todays Agenda

124 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) 123 LID = Low Impact Development

125 A More Specific Approach to Best Management Practices 124 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. Except where infeasible. Specific feasibility criteria are being developed. 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.

126 125 Tier 1 On-Site Retention (LID) Pervious Pavement (Pavers)

127 126 Tier 1 On-Site Retention (LID) Infiltration Trench

128 127 Tier 1 On-Site Retention (LID) Infiltration Basin

129 128 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, www.RainTechnologies.com.

130 129 Tier 2 Biotreatment (LID) Biofiltration (With Underdrains)

131 130 Tier 2 Biotreatment (LID) Vegetated Swale

132 131 Tier 3 Conventional Treatment Controls Austin-Type Sand Filter

133 132 Tier 3 Conventional Treatment Controls Extended Detention Basin

134 133 Tier 3 Conventional Treatment Controls Insert Devices

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

136 A More Specific Approach to Best Management Practices 135 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.

137 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

138 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 137 Todays Agenda

139 Hydromodification 138 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.

140 Hydromodification 139 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.

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

142 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

143 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 142 Todays Agenda

144 Schedule for Changes to the Development and Redevelopment Program 143 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!

145 Questions? 144

146 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: 909.783.0101 Cell: 909.835.7537 jendicott@aei-casc.com April 2011 Edition Minor Changes April 2012 Updated June 2013


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