Nutrient Management Optimization Tool
[email protected]
Lake Champlain
Long Creek Great Bay
Management Optimization Tool New England Region with examples of some key locations driving Stormwater Nutrient Management
Charles River Cape Cod Narragansett Bay Long Island Sound 56
NASA
First, Some Background: Charles River Nutrient TMDL to Stormwater (SW) Permit
SW Management in Developed Landscapes: Technical & Economic Challenges/Opportunities • Value of comprehensive watershed planning vs. project by project • Need for credible best estimates: • Impervious Cover (IC) source loadings • SW Control cumulative reductions (all design capacities -small to large) • Costs
• Every little bit of control counts • Optimization analyses are worthwhile and identify opportunities 57
New England Region Precipitation Patterns - Relevant Points
• Most rain events are small in size; • Occur regularly (average about once every three days) • The total volume and event size distribution are relatively consistent across New England Region • Small sized events washoff significant proportion of annual pollutant load from impervious surfaces
58
58
SW Control Long-term Cumulative Performance Curve Concept SW Control Performance Curves Surface Infiltration Practices rain gardens, swales, basins, etc. (Saturated Soil Infiltration Rate 0.52 in/hr)
100%
90%
90%
80%
80%
70%
70%
60%
60%
50%
50%
40%
40%
30%
30%
20%
20%
10%
10%
0%
Runoff Volume Reduction
Cumulative Phosphorus Load Removal
100%
0% 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Physical Storage Design Capacity, Impervious Surface Runoff Depth (inches) TP
Volume
Small Rain Garden http://www.flickr.com/photos/cdwilliams1/2915660835/ 59 Larger Stormwater Basin http://www.flickr.com/photos/leonizzy/6232922661/
Example of the Value of Optimization Analyses for Comprehensive SW Management
140
Total cost (million $)
120 100
All scenarios evaluated
52%, $98 Million
80 60 40 20 0 0.00%
52%, $26 Million 52%, 26.08
10.00% 20.00% 30.00% 40.00% 50.00% 60.00% 70.00% 80.00% Annual average TP load reduction
60
What is the Opti-Tool? • A spreadsheet-based stormwater (SW) management optimization tool
• Planning Level Analysis (EPA Region 1 SW Control Performance Curves) • Implementation Level Analysis (EPA SUSTAIN SW Control Simulation and Optimization Engine)
• Customized with data for New England Region • Suitable for Region 1 MS4 (MA & NH) permit compliance for nutrients Opti-Tool will become widely available in January 2017
61
Who and What is Opti-Tool Designed For? • SW management decision-makers: o SW Permittees, municipalities and watershed planners
o Consultants, SW professionals o State and federal SW related programs
• Development of optimized SW nutrient management plans o Determine the best mix of SW controls to provide the greatest benefit for achieving water resources goals while balancing costs o Provide flexibility to conduct watershed wide or individual project scale analyses o Representative of SW flow and quality, climatic conditions and SW control performances in New England Region. 62
Design Features of Opti-Tool • Accessible to all users with Microsoft Excel 2013 software • Represents actual regional climatic conditions • Incorporates credible estimates of urban/suburban stormwater runoff flows and nutrient quality • Incorporates credible estimates of long-term cumulative nutrient load and runoff volume reduction performances for 11 categories of structural stormwater controls • Uses Information which is being shared with other regional tool developers to promote the use of consistent and high quality data
63
Design Features - cont. • Incorporates representative stormwater control units cost information with scaling function to account for specific conditions and development density • Includes flexibility to conduct either watershed planning level or detailed site specific designlevel analyses • Performs optimization analyses to determine most cost-effective selection of structural stormwater controls for achieving pollutant loading and runoff flow related reduction targets 64
Opti-Tool Planning and Implementation Options
65
Opti-Tool: SW Source Areas Impervious Cover Types 1. Commercial/Industrial 2. High-Density Residential 3. Medium-Density Residential 4. Low Density Residential 5. Highway 6. Open Land 7. Forest 8. Agriculture
Pervious Cover Types 9. Forest Pervious 10. Agriculture Pervious 11. Developed Land Pervious – Hydrologic Soil Group A 12. Developed Land Pervious – Hydrologic Soil Group B 13. Developed Land Pervious – Hydrologic Soil Group C 14. Developed Land Pervious – Hydrologic Soil Group C/D 15. Developed Land Pervious – Hydrologic Soil Group D 66
66
Opti-Tool: SW Control Types 1. Bio-filtration 2. Enhanced Bio-filtration with Internal Storage Reservoir (for N control) 3. Dry Pond 4. Grass Swale 5. Gravel Wetland 6. Infiltration Basin, Rain Gardens, Bioretention 7. Infiltration Chambers 8. Infiltration Trench 9. Porous Pavement 10. Sand Filter 11. Wet Pond
67
67
Contact Information and Availability of Opti-Tool For information or to obtain Opti-Tool: Contact Mark Voorhees at [email protected] or 617 918-1537 Opti-Tool will made available to the public on EPA’s website (see below) in January 2017. Three instructional webinars for using Opti-Tool are under development and will be available in January 2017 https://www3.epa.gov/region1/npdes/stormwater/ma/
68
Stormwater Management Optimization Tool (Opti-Tool): Opti-Tool is a Stormwater Management
Opti-Tool
spreadsheet-based stormwater (SW) management optimization tool designed to assist municipal SW managers in preparing technically sound and cost-effective management plans to address SW nutrient impairments in New England’s watersheds. The versatile tool is suitable for both planning level and detailed implementation level analyses for individual sites or on a watershed wide scale. Opti-Tool is based on extensive research and model calibration results representing regional SW flow and quality (e.g., nutrients), long term cumulative performances for numerous SW controls, and SW control cost data. The user works within the Excel platform for data input and to use the external SUSTAIN module for more detailed analyses in simulate SW control performance for a user-selected time period, and provide optimization at a given assessment point in the watershed.
Mark Voorhees Mark Voorhees is an environmental engineer in the stormwater permitting program at the U.S. EPA in New England. Currently, Mark focuses on developing information/tools to assist permittees in building technical program capacity for implementing technically sound and economically viable stormwater management programs to restore stormwater impaired surface waters. At EPA, he has worked extensively in the TMDL program and in conducting water quality, modeling, and watershed/stormwater management analyses. Prior to EPA, he worked as a Professional Engineer conducting environmental modeling studies and developing abatement plans to address water quality impacts related to combined sewer overflows and urban stormwater discharges.
Contact: [email protected]
69
Lake Champlain
Long Creek Great Bay
Management Optimization Tool New England Region with examples of some key locations driving Stormwater Nutrient Management
Charles River Cape Cod Narragansett Bay Long Island Sound 56
NASA
First, Some Background: Charles River Nutrient TMDL to Stormwater (SW) Permit
SW Management in Developed Landscapes: Technical & Economic Challenges/Opportunities • Value of comprehensive watershed planning vs. project by project • Need for credible best estimates: • Impervious Cover (IC) source loadings • SW Control cumulative reductions (all design capacities -small to large) • Costs
• Every little bit of control counts • Optimization analyses are worthwhile and identify opportunities 57
New England Region Precipitation Patterns - Relevant Points
• Most rain events are small in size; • Occur regularly (average about once every three days) • The total volume and event size distribution are relatively consistent across New England Region • Small sized events washoff significant proportion of annual pollutant load from impervious surfaces
58
58
SW Control Long-term Cumulative Performance Curve Concept SW Control Performance Curves Surface Infiltration Practices rain gardens, swales, basins, etc. (Saturated Soil Infiltration Rate 0.52 in/hr)
100%
90%
90%
80%
80%
70%
70%
60%
60%
50%
50%
40%
40%
30%
30%
20%
20%
10%
10%
0%
Runoff Volume Reduction
Cumulative Phosphorus Load Removal
100%
0% 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Physical Storage Design Capacity, Impervious Surface Runoff Depth (inches) TP
Volume
Small Rain Garden http://www.flickr.com/photos/cdwilliams1/2915660835/ 59 Larger Stormwater Basin http://www.flickr.com/photos/leonizzy/6232922661/
Example of the Value of Optimization Analyses for Comprehensive SW Management
140
Total cost (million $)
120 100
All scenarios evaluated
52%, $98 Million
80 60 40 20 0 0.00%
52%, $26 Million 52%, 26.08
10.00% 20.00% 30.00% 40.00% 50.00% 60.00% 70.00% 80.00% Annual average TP load reduction
60
What is the Opti-Tool? • A spreadsheet-based stormwater (SW) management optimization tool
• Planning Level Analysis (EPA Region 1 SW Control Performance Curves) • Implementation Level Analysis (EPA SUSTAIN SW Control Simulation and Optimization Engine)
• Customized with data for New England Region • Suitable for Region 1 MS4 (MA & NH) permit compliance for nutrients Opti-Tool will become widely available in January 2017
61
Who and What is Opti-Tool Designed For? • SW management decision-makers: o SW Permittees, municipalities and watershed planners
o Consultants, SW professionals o State and federal SW related programs
• Development of optimized SW nutrient management plans o Determine the best mix of SW controls to provide the greatest benefit for achieving water resources goals while balancing costs o Provide flexibility to conduct watershed wide or individual project scale analyses o Representative of SW flow and quality, climatic conditions and SW control performances in New England Region. 62
Design Features of Opti-Tool • Accessible to all users with Microsoft Excel 2013 software • Represents actual regional climatic conditions • Incorporates credible estimates of urban/suburban stormwater runoff flows and nutrient quality • Incorporates credible estimates of long-term cumulative nutrient load and runoff volume reduction performances for 11 categories of structural stormwater controls • Uses Information which is being shared with other regional tool developers to promote the use of consistent and high quality data
63
Design Features - cont. • Incorporates representative stormwater control units cost information with scaling function to account for specific conditions and development density • Includes flexibility to conduct either watershed planning level or detailed site specific designlevel analyses • Performs optimization analyses to determine most cost-effective selection of structural stormwater controls for achieving pollutant loading and runoff flow related reduction targets 64
Opti-Tool Planning and Implementation Options
65
Opti-Tool: SW Source Areas Impervious Cover Types 1. Commercial/Industrial 2. High-Density Residential 3. Medium-Density Residential 4. Low Density Residential 5. Highway 6. Open Land 7. Forest 8. Agriculture
Pervious Cover Types 9. Forest Pervious 10. Agriculture Pervious 11. Developed Land Pervious – Hydrologic Soil Group A 12. Developed Land Pervious – Hydrologic Soil Group B 13. Developed Land Pervious – Hydrologic Soil Group C 14. Developed Land Pervious – Hydrologic Soil Group C/D 15. Developed Land Pervious – Hydrologic Soil Group D 66
66
Opti-Tool: SW Control Types 1. Bio-filtration 2. Enhanced Bio-filtration with Internal Storage Reservoir (for N control) 3. Dry Pond 4. Grass Swale 5. Gravel Wetland 6. Infiltration Basin, Rain Gardens, Bioretention 7. Infiltration Chambers 8. Infiltration Trench 9. Porous Pavement 10. Sand Filter 11. Wet Pond
67
67
Contact Information and Availability of Opti-Tool For information or to obtain Opti-Tool: Contact Mark Voorhees at [email protected] or 617 918-1537 Opti-Tool will made available to the public on EPA’s website (see below) in January 2017. Three instructional webinars for using Opti-Tool are under development and will be available in January 2017 https://www3.epa.gov/region1/npdes/stormwater/ma/
68
Stormwater Management Optimization Tool (Opti-Tool): Opti-Tool is a Stormwater Management
Opti-Tool
spreadsheet-based stormwater (SW) management optimization tool designed to assist municipal SW managers in preparing technically sound and cost-effective management plans to address SW nutrient impairments in New England’s watersheds. The versatile tool is suitable for both planning level and detailed implementation level analyses for individual sites or on a watershed wide scale. Opti-Tool is based on extensive research and model calibration results representing regional SW flow and quality (e.g., nutrients), long term cumulative performances for numerous SW controls, and SW control cost data. The user works within the Excel platform for data input and to use the external SUSTAIN module for more detailed analyses in simulate SW control performance for a user-selected time period, and provide optimization at a given assessment point in the watershed.
Mark Voorhees Mark Voorhees is an environmental engineer in the stormwater permitting program at the U.S. EPA in New England. Currently, Mark focuses on developing information/tools to assist permittees in building technical program capacity for implementing technically sound and economically viable stormwater management programs to restore stormwater impaired surface waters. At EPA, he has worked extensively in the TMDL program and in conducting water quality, modeling, and watershed/stormwater management analyses. Prior to EPA, he worked as a Professional Engineer conducting environmental modeling studies and developing abatement plans to address water quality impacts related to combined sewer overflows and urban stormwater discharges.
Contact: [email protected]
69
