university of wisconsin-madison engineering professional development

WisDOT Storm Water Quality & Roadway Drainage

WinSLAMM v 102-B Theory and Practice

Robert Pitt, John Voorhees, and Caroline BurgerPV & Associates LLC

Using WinSLAMM ver. 10 Meeting Urban Stormwater Management GoalsApril 12 13, 2012 Madison, WIApril 23 24, 2012 Baltimore, MDUniversity of Wisconsin-MadisonEngineering Professional Development1

1We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

224/12/20102Module 4 WinSLAMM Theory and PracticePurpose of the Source Loading and Management Model (WinSLAMM). . .Quantify runoff volumes and pollutant loads from urban areas.Identify critical sources of runoff and pollutants.Determine effectiveness of stormwater control practices in reducing runoff volumes and pollutant loadsSelecting most cost-effective combination of practices to achieve environmental goals334/12/20103Module 4 WinSLAMM Theory and PracticeWinSLAMM Can Answer These Types of Policy Questions . . .What are the base level pollutant loadings for different land uses with no controls?What flow and pollutant levels result from different development scenarios?What are the critical sources of flows and pollutants?How effective are treatment practices in controlling pollutants and reducing flows?What combinations of stormwater controls will best meet regulatory requirements?4Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH4Background & HistoryDevelopment Began in mid-1970sEarly EPA street cleaning projectsSan Jose and Coyote Creek (CA)Castro Valley and other NURP projectsMid-1980s - Model used in Agency Programs:Ottawa bacteria stormwater management program Toronto Area Watershed Management Strategy Wis. Dept. of Natural Resources: Priority Watershed Program

Intensive data collection started in WI in early 1990s.First Windows version developed in 1995.Major national and regional research supporting stormwater management issues integrated into model over past decades.Continuously being updated based on user needs and new research results.

55Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH54/12/20105Module 4 WinSLAMM Theory and PracticeLocationLand usearea (acres)directly connected impervious (%)pervious (%)# of eventsBellevue, WA Surrey Downsresidential medium density95.11764196 Lake Hillsresidential medium density101.71764201San Jose, CA Keyesresidential, medium density9230486 (drought) Tropicanaresidential, medium density19525568 (drought)Toronto, Ontario Thistledownsresidential, medium density96.4215535 Emeryindustrial380.5422560Tuscaloosa, AL City HallInstitutional/commercial0.9100031 BamaBellecommercial0.89683217 (on-going)Characteristics of Several of the 114 Research Locations used for Regional Model Calibrations (in addition to WI sites)

6Commer.Indus.Instit.Open SpaceResid.Freeways/HighwaysTotal by RegionCentral42415319East Coast31112311Great Lakes (the USGS/DNR files)644211431Northwest21113311Southeast72358429Southwest51112313Total by Land Use271114113120114 Number of Standard Land Use Files Used for Each Category7

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Residential Areas Flow ContributionsRains: 1: 0.01; 2: 0.05; 3: 0.1; 4: 0.25; 5: 0.5; 6: 0.75; 7: 1; 8: 1.5; 9: 2; 10: 2.5; 11: 3; 12: 4

Commercial Areas Flow Contributions10

Great LakesEast CoastSouth EastCentralNorth WestSouth WestNational Stormwater Quality Database11We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

12124/12/201012Module 4 WinSLAMM Theory and PracticeUnique Features of WinSLAMM (and why it was developed!)WinSLAMM based on actual monitoring results at many scales and conditions.Early research project results in the 1970s did not conform to typical stormwater assumptions (especially rainfall-runoff relationships and sources of pollutants; way before we had long lists of control practices too!).Initial versions of the model therefore focused on site hydrology and particulate sources and transport (and public works practices). Other control practices added as they were developed and data become available.13

Controlled tests in small areas were used in conjunction with long-term rainfall/runoff monitoring at larger parking lot areas to develop actual hydrological relationships for paved areas, the most significant source of runoff for most urban areas during small to intermediate-sized rains.

This is an example of a rainfall-runoff plot from one of many controlled street washoff and runoff tests. About 1/3 of the rainfall is infiltrated through the street pavement for many of these events (up to 20 mm rains in this plot). No further infiltration was observed for larger events, resulting in classical pavement Rv values of 0.8 to 0.95 for large rains of interest for drainage design.Pitt 198714

Infiltration Rates in Disturbed Sandy Urban Soils

Sandy SoilsClayey SoilsCompaction associated with construction and continuing activities in urban areas results in significantly decreased infiltration rates compared to natural soils. For sandy soils, moisture has little effect on the infiltration rates, while compaction can cause significant runoff (as shown in previous slide of turf area runoff in a very sandy area). For clayey soils, compaction and moisture have similar detrimental effects on the infiltration rates. Pitt, et al. 1999Pitt, et al. 199915

Infiltration Measurements for Noncompacted, Sandy Soils (Pitt, et al. 1999) It doesnt really matter which classical infiltration equation is used, as they all are rather poor fits and do not consider the wide variability in the actual data.16Long-Term Sustainable Average Infiltration RatesSoilTextureCompaction MethodDry Bulk Density (g/cc)Effects on Root Growth (per NRCS)Long-term Average Infilt. Rate (in/hr)SandHandStandardModified1.41.51.6IdealIdealMay affect -80203SiltHandStandardModified1.51.71.8May affectMay affect +Restrict2010.1ClayHandStandardModified1.2n/an/aMay affectRestrictRestrict30017

Washoff of Street Dirt, Bellevue, WAPitt 1985Washoff of particulates from urban paved surfaces preferentially favors the smallest particles, with little movement of the larger material, and much is left on the surface. 18

Mass balance measurements in the drainage system and at the outfall used to determine the fate and transport of the urban particulates. Much of the larger particulates not washed off is lost from the paved surfaces by fugitive dust by winds and traffic turbulence.

Keyes, good asphalt0.33 grams/vehicle-miKeyes, oil and screens asphalt18 grams/vehicle-miTropicana, good asphalt2.5 grams/vehicle-miMeasured fugitive dust losses from traffic (San Jose, Pitt 1979)19

Measured Particle Sizes, Including Bed Load Component, at influent to the Monroe St. Detention Pond, Madison, WIVery few of the large particles that enter the drainage systems are transported to the outfalls in typical urban drainage systems. Most (about 85% in this typical example) of the outfall particulates discharged are less than 100 m in size. 20We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

21214/12/201021Module 4 WinSLAMM Theory and PracticeModel ApplicationsModel Can Be Applied on Multiple Levels

Large Scale, City-wide AnalysisSite Development Analysis (Apartment Complex, Shopping Center, Hospital Complex, Residential Development)Analysis of Single Practice22224/12/201022Module 4 WinSLAMM Theory and PracticeModel ApplicationsLarge Scale, City-wide AnalysisAnalysis Procedure - Inventory drainage basins and land usesEvaluate existing pollutant loads and runoff volumes (base condition).Adjust base condition with existing stormwater control practices.Evaluate additional practices to cost-effectively achieve pollutant reduction goals.2323Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH234/12/201023Module 4 WinSLAMM Theory and PracticeModel ApplicationsLarge Scale, City-wide AnalysisExample Fond du Lac, WI Original plan in 2006 indicated City did not meet regulatory goal of 40% TSS reduction (Initial conditions ~ 14%)2006 plan included alternative evaluation matrix, developed using WinSLAMMMatrix included hard factors such as cost and pollution reduction and soft factors such as public acceptability and secondary benefitsCity selected and implemented 2006 plan recommendations between 2006 and 2011, which met 40% TSS reduction goal2424Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH244/12/201024Module 4 WinSLAMM Theory and Practice

Model ApplicationsLarge Scale, Regional AnalysisModel large, complex areas to determine the effect of stormwater control measures by combiningAECOM Project Fond du Lac, WI25Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH254/12/201025Module 4 WinSLAMM Theory and PracticeModel ApplicationsLarge Scale, Regional Analysis26

Watersheds, subwatersheds and26Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH264/12/201026Module 4 WinSLAMM Theory and PracticeModel ApplicationsLarge Scale, Regional Analysis

Land Use and Soil Characteristics to EvaluateResidential Purple/Pink areasIndustrial Blue areasCommercial Orange areas27Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH274/12/201027Module 4 WinSLAMM Theory and Practice28Model ApplicationsLarge Scale, Regional Analysis

Pollution Load without Stormwater Control MeasuresMore Red More PollutionMore Green Less Pollution28Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH284/12/201028Module 4 WinSLAMM Theory and Practice29Model ApplicationsLarge Scale, Regional Analysis

Implemented Stormwater Control MeasuresGreen Grass SwalesBlue Wet Detention PondsOrange Catch Basins with SumpsPink Multiple Measures29Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH294/12/201029Module 4 WinSLAMM Theory and Practice

30Model ApplicationsLarge Scale, Regional AnalysisPollution Load with Implemented Stormwater Control MeasuresMany areas went from red to greenCan concentrate on areas that are still red30Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH304/12/201030Module 4 WinSLAMM Theory and PracticeModel ApplicationsSite Development AnalysisAnalysis Procedure - Inventory site characteristics (soil type, percent imperviousness, etc.)Locate selected stormwater controls throughout the siteDetermine volume and pollutant reduction achieved with selected stormwater control practices. 3131Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH314/12/201031Module 4 WinSLAMM Theory and PracticeModel ApplicationsSite Development Analysis

Porous PavementBiofilterInfiltration/Detention PondCatchbasin with SumpGrass SwalesEnter all the practices for a site to determine the overall runoff and pollutant reduction3232Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH324/12/201032Module 4 WinSLAMM Theory and PracticeModel ApplicationsSingle Practice Analysis

Wet Detention Pond Analyze the performance of a specific pond for a specific site

Volume and Pollutant Reduction for Biofilters bioretention, rain gardens, infiltration basins3333Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH334/12/201033Module 4 WinSLAMM Theory and PracticeCapital Cost of Pond Achieving Different TSS Reductions at 100 Acre Mix of 40% Shopping Center and 60% Medium Residential

Cost-performance curves are usually not linear, with increasing unit costs as the overall treatment objective increases. For some situations, it may therefore be more cost-effective to apply moderate levels of multiple controls. WinSLAMM can also calculate life-cycle costs that include land costs, capital costs, and operational and maintenance costs, all adjusted for financing costs and inflation factors, and expected life of project.34Module 4 WinSLAMM Theory and Practice4/12/201034We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

35354/12/201035Module 4 WinSLAMM Theory and PracticeKnowing the Runoff Volume is the Key to Estimating Pollutant MassThere is usually a simple relationship between rain depth and runoff depth.Changes in rain depth affects the relative contributions of runoff and pollutant mass discharges: Directly connected impervious areas contribute most of the flows during relatively small rainsDisturbed urban soils may dominate during larger rains36Most of the pollutants in stormwater runoff come from small and moderate size storms . . .

. . .in contrast to design storms, because the smaller storms are much more frequent and account for the majority of runoff water and pollutantsSmall Storm Hydrology Runoff Volume37374/12/201037Module 4 WinSLAMM Theory and PracticeMonitored Milwaukee Rainfall and Runoff Distributions

SmallMediumLarge38384/12/201038Module 4 WinSLAMM Theory and PracticeMonitored Milwaukee Pollutant Distribution

SmallMediumLargePercent Associated with Rain, or lessRain (inches)39394/12/201039Module 4 WinSLAMM Theory and PracticeRainfall Sorts into Three Distinct Categories Small Rains Accounts for most events, by numberTypically can be easily captured for infiltration or on-site beneficial usesRelatively low pollutant loadings, but frequent dischargesKey rains associated with water quality violations, e.g. bacteria and total recoverable heavy metals Every time it rains, some numeric discharge concentration objectives are likely to be exceeded, therefore, eliminate the number of events40Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH40Rainfall Sorts into Three Distinct Categories Medium Rains Responsible for most pollutant mass dischargesSmaller events in this category can be easily captured and infiltrated or re-usedLarger events in this category need to be treated. Typically responsible for about 75% of pollutant discharges41Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH41Rainfall Sorts into Three Distinct Categories Large Rains Infrequent Large EventsNot cost effective to treat all runoffTypically cause flooding and significant erosionTreatment practices designed for smaller storms will mitigate impacts of larger events to some extent42Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH42These concepts are incorporated into SLAMMSLAMMSoil TypeLanduse AreaRainfallDevelopment CharacteristicsControl PracticesRunoff Volume and Pollutant Load 43Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH43We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

44444/12/201044Module 4 WinSLAMM Theory and PracticeBasic Program StructureWinSLAMM Calculation ProcessCalculate Runoff Volumes and Particulate Loadings for each Source AreaApply Appropriate Source Area Treatment PracticesSum Resulting Source Area OutputsRoute Totals to the Drainage SystemApply Appropriate Drainage System Treatment PracticesRoute Totals to the Outfall for Volume and Pollutant Discharge to Receiving Waters45454/12/201045Module 4 WinSLAMM Theory and PracticeOutfallResidential Land UseSource AreasPitched RoofsDrivewaysSidewalksSmall Landscaped AreasMedium Density Residential Land UseResidential Land UseSource AreasPitched RoofsDrivewaysSmall Landscaped AreasLow Density Residential Land UseCommercial Land UseSource AreasFlat RoofsParkingDrivewaysSidewalksSmall Landscaped AreasStrip Commercial Land UseOther Urban Land UseSource AreasPlaygroundSidewalksLarge LandscapedAreasPark Land UseStorm Sewer Drainage SystemGrass Swale Drainage SystemFreeway Land UseSource AreasPaved Lane and ShouldersLarge Turf Areas46464/12/201046Module 4 WinSLAMM Theory and Practice

Modeled Drainage System from Previous Slide47Information Needed to support the Basic Program Structure is entered in the Land Development Characteristic (.mdb) file:1. Land Use type and area2. Size of all Source Areas3. Source Area parameters (soil type, connected imperviousness, street texture, etc.)4. Control Practice designs48Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH484/12/201048Module 4 WinSLAMM Theory and Practice

49494/12/201049Module 4 WinSLAMM Theory and PracticeThis Process is applied through parameter filesRainfall File (*.ran)Runoff Coefficient File (v10*.rsv)Particulate Solids Concentration File (*.pscx)Pollutant Probability Distribution File (*.ppdx)Particle Size Parameter File (*.cpz)50504/12/201050Module 4 WinSLAMM Theory and PracticeRainfall Parameter File Can Include Many Years of Rainfall Information

51514/12/201051Module 4 WinSLAMM Theory and Practice

Connected pitched roofsRough textured streetsClay soilsSandy soils52

Runoff Volume (cf) = Rainfall Depth (in) * Source Area (ac) * Rv Coefficient * Unit ConversionRunoff VolumeRainfall Depth (in) ==>0.260.710.41Source AreaArea (ac)RvRunoff (cf)RvRunoff (cf)RvRunoff (cf)Residential Land UseRoof - Connected0.150.8761240.9573700.932208Roof - Disconnected0.200.00510.037190.0206Driveway0.150.692980.9033490.761170Sidewalk0.040.689260.902930.75645Small Landscape Area1.250.00780.0371200.02240Street0.300.6961970.9036980.761340Total2.0945416498090.8760.0050.6920.6890.0070.69653Tab 4 WinSLAMM Model Features and Navigation53April 19th, 2010Depicts the particulate solids concentrations for source areas and land uses based upon rainfall depth.Default files available, or may be user-defined.File extension: *.pscx

Particulate Solids Concentration File54544/12/201054Module 4 WinSLAMM Theory and PracticeRainfall Depth (in) ==>0.260.710.41Source AreaArea (ac)Runoff (cf)Conc. (mg/L)Load (lbs)Runoff (cf)Conc. (mg/L)Load (lbs)Runoff (cf)Conc. (mg/L)Load (lbs)Residential Land UseRoof - Connected0.15124370.29370370.85208370.48Roof - Disconnected0.201370.0019370.046370.01Driveway0.15981540.953491543.361701541.64Sidewalk0.0426750.1293750.4445750.21Small Landscape Area1.2582270.111202271.70402270.57Street0.301977188.8369841418.043403066.49Total2.0945410.30164924.438099.41

Particulate Solids Loading (lbs) = PSC Concentration (mg/L) * Runoff Volume (cf) * Unit ConversionParticulate Solids Loading37371547522771855Tab 4 WinSLAMM Model Features and Navigation55April 19th, 2010Sawtooth Pattern Associated with Deposition and Removal of Particulates on Urban Street

Pitt 1979Street Dirt Washoff and AccumulationStreet Dirt AccumulationStreet Dirt Washoff or Cleaning56Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH56Pollutant File

Depicts the pollutant concentrations for source areas and land uses.Default files available, or may be user-defined.File extension: *.ppdx

57Data from a pollutant value file determine, when multiplied by either a source area runoff volume or source area particulate loading, the pollutant loading from a source area. This editor creates, views, and edits pollutant probability distribution files (files with the extension .ppd) that describe pollutant concentrations or loadings that are from source areas and land uses used in WinSLAMM. This data is generally based upon pollutant loading and concentration source area and land use data collected from the study area or region. For example, particulate COD source data, in units of milligrams of COD per kilogram of suspended solids loading in the runoff, must be entered for each source area and land use of concern.

WinSLAMM calculates pollutant loadings for nine particulate and ten filterable pollutants. They are shown on the form above. The particulate pollutant units, except for Particulate Solids, are mg/kg. The filterable pollutant units are mg/l except for the metals, which are micrograms/L and the Fecal Coliform Bacterial, whose units are #/100 ml. The particulate solids (suspended solids) data is obtained in the Particulate Solids Concentration editor. The fecal coliform are retained on 0.45 micrometer filters, but generally behave like filterable pollutants in most urban runoff control practices.

The user may define up to six other pollutants in both particulate and filterable forms. Select the pollutants you want to evaluate during a model run from the Pollutant Selection form in WinSLAMM.

To use the pollutant editor, from the main menu select Utilities/Parameter Files/Pollutant Files. To view or select the an existing file, press the 'Select File' button and browse to the desired .ppd file. All pollutants with data are italicized. Select a button of an italicized pollutant to view the values. Use the scroll bar to view all the source areas. The land use values are listed at the top of the grid. To enter or change a value, place the cursor in the desired cell and change the value. The buttons at the bottom of the form allow you to print the .ppd file as an ASCII text file with the extension .txt. You can also save the file, rename the file, cancel your edits, or continue. Once you have completed your edits, save the file and then print and review it to make certain that the values are as you expected.

To enter pollutants that are not on the form, select either a Particulate or Filterable 'Other' value. Type the name of the pollutant, select the correct units, and enter the values. April 19th, 201057Tab 4 WinSLAMM Model Features and NavigationPollutant Loading:Particulate Pollutant Loading (lbs) = Particulate Solids Loading (lbs) * PPD Coefficient (mg/kg) * Unit ConversionDissolved Pollutant Loading (lbs) = * Runoff Volume (cf) * PPD Coefficient (mg/L) * Unit Conversion58Tab 4 WinSLAMM Model Features and Navigation58April 19th, 2010Critical Particle Size FilesA number of .cpz files are included with the program

For devices using sedimentation such as wet detention ponds, catchbasins, hydrodynamic devices, biofilters, grass swales, grass filters, media filters (soon), etc.Basic Program OperationFor 80% reduction, the particle size for control is 7 um7 um80%59Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH59We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

60604/12/201060Module 4 WinSLAMM Theory and PracticeWet Detention PondsPorous PavementStreet CleaningCatchbasin CleaningGrass Swales and Grass Filters

Biofiltration/bioretentionGreen RoofsProprietary Controls (media filters and hydrodynamic devices)Beneficial Uses

Basic Program StructureControl Devices

61Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH61

Biofiltration/InfiltrationOverflowUnderdrainInfiltrationDrainageRechargePrecipitationOrifice Flow

EvapotranspirationRunoff62624/12/201062Module 4 WinSLAMM Theory and PracticeProprietary Hydrodynamic Separators

StormceptorVortechs

DownStream Defender63

Grass Swales64Morris Arboretum, Phila

Porous Pavement6565Rain infiltrates through porous pavement.

This system was built in 1983 and still operates with virtually no maintenance.4/12/201065Module 4 WinSLAMM Theory and Practice

Street Cleaning66

Monroe St. Detention PondWet Detention Ponds67

Version 10 Routes Control Practices in SeriesInfiltration BasinWet Detention Pond68Runoff Volume and Pollutant Reductions Associated with Some of the Control Practices Included in WinSLAMMControl PracticeVolume and filterable pollutant reductionsParticulate pollutant reductionsHydrodynamic DeviceXWet DetentionX Porous PavementXX*Street CleaningXCatchbasin CleaningXGrass SwalesXXBiofiltration/bioretentionXXBeneficial UsesXX** Particulate reductions associated with water volume reductions69694/12/201069Module 4 WinSLAMM Theory and PracticeOne of the Most Important New Features of WinSLAMM Version 10 is its Ability to Route Hydrographs and Particle Size Distributions through Successive Control Practices Upgradient hydrograph modifications usually improve the performance of downgradient controls (mostly due to decreased peak treatment flow rates).Routing of particle size distributions through different control practices results in more accurate overall performance calculations (such as eliminating errors associated with double counting removals of larger particles already removed by preceding controls).These enhancements result in an improved ability to accurately model treatment trains and to select and size complementary control practices throughout an area.70

100 acre Institutional Area Hydrograph and particle size routing through string of five wet detention ponds, each increasing in area downgradient.area at lowest invert, at 4 ft. stage (ac)max pond surface area (ac)pond 10.200.50pond 20.300.75pond 30.501.25pond 40.901.50pond 51.652.7571

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81influent TSS load (lbs)effluent TSS load (lbs)influent TSS concentration (mg/L)effluent TSS concentration (mg/L)pond 11,1906169147pond 26165074739pond 35073773929pond 43773012923pond 53011582312overall1,190158911287%82Combination of Redundant Controls:

10 acres medium density residential area:

Street cleaning:weekly vacuum street cleaning, light parking densities with parking controlsCatchbasins:0.5 CB/ac(5 total)3 ft sumps, 10 ft2 surface areas83Overall system performance (full year of rains):Catchbasins and Street Cleaning:Weekly Street Cleaning Only:Catchbasins Only:influent TSS conc (mg/L):270270270effluent TSS conc (mg/L):153177185influent TSS mass (lbs):2,6982,6982,698effluent TSS mass (lbs):1,5441,7831,863% mass reduction:34%24%20%84single event (1 inch rain)street only contribution areasweekly vacuum street cleaning and one catchbasin in 1.3 ac of streetsOverall system performance:Catchbasins and Street Cleaning:Street Cleaning Only:Catchbasins Only:influent TSS conc (mg/L):299299299effluent TSS conc (mg/L):9797257% conc reduction:676714%85

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87We will cover . . .WinSLAMM Purpose & HistoryUnique Features of WinSLAMM Model ApplicationsSmall Storm HydrologyBasic Program Structure and OperationTreatment PracticesModel Input/Output

88884/12/201088Module 4 WinSLAMM Theory and PracticeIncludes:

1. Land Uses and Source Areas2. Control Devices3. Analyzed as a single file or in batch mode4. Many output options

Model OutputModel Input/Output89894/12/201089Module 4 WinSLAMM Theory and Practice

Output SummaryDrainage System and Outfall ResultsModel Input/Output90904/12/201090Module 4 WinSLAMM Theory and Practice

Receiving Water Impacts

Model Input/Output

91Module 4 WinSLAMM Theory and PracticeJohn Voorhees, PE, PH914/12/201091Module 4 WinSLAMM Theory and Practice

Detailed Output InformationModel Input/Output92924/12/201092Module 4 WinSLAMM Theory and Practice

Runoff Volume TabComplete Output93934/12/201093Module 4 WinSLAMM Theory and Practice

Control Practice Summary Table94944/12/201094Module 4 WinSLAMM Theory and PracticeSimilar Output for -Particulate Solids ConcentrationParticulate Solids YieldPollutant ConcentrationPollutant YieldModel Input/Output

95954/12/201095Module 4 WinSLAMM Theory and PracticeThe Context-Sensitive Help in the Program

WinSLAMM Help File96964/12/201096Module 4 WinSLAMM Theory and PracticeChart151.70048.3000000016.60111.7014.904.3051.402205.29.9013.303.9045.8021.10.38.59.40.112.30.13.6042.6218.31.17.98.60.411.80.23.40.140.87.316.61.57.58.40.611.60.33.40.140.11016.41.67.48.70.611.30.33.30.139.21115.81.97.49.10.7110.33.20.237.812.611.14.85.36.71.97.70.92.20.426.532.6114.85.46.81.97.70.82.20.426.532.5114.75.46.81.87.70.82.20.426.732.310.84.75.46.91.87.80.82.30.427.131.9

Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1

FlowsFlow sources by rain depthuse WI parameter files; Bham source rain fileResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0151.70048.300000001000.0516.60111.7014.904.3051.401000.12205.29.9013.303.9045.801000.2521.10.38.59.40.112.30.13.6042.621000.518.31.17.98.60.411.80.23.40.140.87.31000.7516.61.57.58.40.611.60.33.40.140.110100116.41.67.48.70.611.30.33.30.139.2111001.515.81.97.49.10.7110.33.20.237.812.6100211.14.85.36.71.97.70.92.20.426.532.61002.5114.85.46.81.97.70.82.20.426.532.51003114.75.46.81.87.70.82.20.426.732.3100410.84.75.46.91.87.80.82.30.427.131.9100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 10.013.3090.26.4000000.052.34.447.53.40.95.835.7000.12.921.537.52.70.74.929.8000.252.532.432.52.30.64.125.300.10.52.332.131.92.30.64.225.90.10.50.752.231.4322.30.74.326.30.20.712.23133.12.40.64.225.60.20.81.52.130.734.62.50.6424.50.20.92229.834.32.40.63.823.40.732.51.929.834.62.50.63.823.20.7331.93034.52.50.63.823.10.7341.93034.42.50.63.823.30.62.9IndustrialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Landscaped AreaLand Use Totals0.0113.50047.638.90000001000.0512.52033.427.20061.117.901000.116.610.2028.122.9005.311601000.2515.516.4026.121.300.14.80.914.50.31000.514.316.30.225.620.90.10.450.914.91.41000.7513.515.80.325.720.90.20.650.915.11.9100113.115.50.326.321.50.20.74.80.914.52.11001.512.415.20.327.222.20.30.84.60.813.82.3100211.113.81.125.220.70.92.54.20.712.37.71002.510.913.81.125.420.90.82.54.20.712.27.6100310.814125.5210.82.44.20.712.27.5100410.714125.5210.82.44.20.712.47.4100InstitutionalRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.019.2081.709.1000001000.057.33.449.305.563.425.1001000.19.317.139.704.45.12.921.4001000.258.326.335.203.94.52.518.60.30.41000.57.625.934.20.13.84.52.518.81.11.51000.757.125.234.10.23.84.62.6191.52.110016.924.835.10.23.94.42.518.41.62.21001.56.624.336.40.244.22.417.51.82.510025.72232.80.83.63.62.115.25.98.11002.55.722.133.20.73.73.6215.15.8810035.622.333.20.73.73.6215.15.77.910045.522.333.30.73.73.72.115.35.67.8100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.70.31000.598.71.31000.7598.21.8100198.11.91001.5982100293.16.91002.593.36.7100393.46.6100493.56.5100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.050310000690001000.1029.8000070.20001000.250.1280.10.40.10.164.73.12.80.51000.50.222.60.51.30.20.554.39.991.71000.750.220.40.61.70.30.649.812.711.62.110010.220.80.61.80.30.647.513.512.32.31001.50.3210.71.90.30.74414.913.62.510020.511.21.33.70.71.322.628.225.84.81002.50.511.41.33.70.71.322.628.125.74.810030.511.51.33.70.71.322.82825.64.710040.511.61.33.60.71.323.227.725.44.7100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.10.91000.596.63.41000.7595.34.710019551001.594.65.4100283.216.81002.583.516.5100383.716.3100483.916.1100Office Technology Parkno runoff for 0.01 inch rain; therefore starts at 0.05 inch rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.251.80.60.188.68.20.71000.55.31.80.267.123.81.91000.756.52.20.259.329.52.410016.92.30.256.631.42.51001.57.62.50.352.334.52.8100212.34.10.422.955.84.51002.512.34.10.42355.74.5100312.34.10.423.255.64.5100412.24.10.423.755.24.5100

Flows

Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1

TSS

Pavd Lane & Shouldr Area 1Large Turf Areas

TDS


Filt P

Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Landscaped Area

TP

Roofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1

NO3

Roofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1

TKN

Roofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1

COD


Fecal ColifTSS sources by rain depthuse WI parameter files; Bham source rain fileResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0123.40076.600000001000.052.900.27.2010.801.5077.401000.13.700.95.909.301.3078.801000.252.601.14.106.400.9083.31.51000.53.10.21.45.20.38.40.11.2072.57.71000.752.60.21.24.70.37.70.21.1072.29.810012.60.31.24.90.47.60.21.107110.81001.53.30.41.66.80.59.60.31.40.159.616.410022.51.11.25.21.57.20.810.234.544.81002.52.61.11.35.71.57.60.81.10.230.847.310032.71.21.35.91.680.91.10.228.148.910042.81.21.46.31.78.50.91.20.224.451.2100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 10.010.9092.56.6000000.050.50.9382.70.82.754.4000.10.42.718.21.30.41.475.6000.250.56.123.91.70.51.865.300.20.50.79.135.32.50.82.747.900.90.750.810.842.93.113.336.401.610.811.748.63.51.13.628.801.91.50.812.655.441.23.719.902.420.812.254.63.91.13.515.20.18.52.50.812.45641.13.613.50.18.530.812.756.84.11.13.612.30.18.540.812.957.84.11.13.710.90.18.5IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ StorageUnpaved Parking/ Storage 1Unpaved Parking/ Storage 2DrivewaysSidewalks/ Walks 1Street Area 1Landscaped AreaLand Use Totals0.011.8054.144.10000001000.051.60.336.729.90040.427.201000.11.7123.819.4002.80.251.101000.2522.128.423.200.13.30.340.20.31000.52.32.635.128.60.10.44.20.424.71.61000.752.42.838.331.30.20.64.60.416.92.410012.42.940.633.10.20.64.60.412.42.71001.52.32.942.8350.30.74.50.483.110022.12.839.432.40.82.44.10.35.710.11002.522.839.932.80.82.440.3510100322.840.2330.82.44.10.34.510100422.840.533.20.82.34.10.349.9100InstitutionalRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.012.4086.4011.3000001000.050.90.423.3033.30.968.1001000.10.61.11001.31.50.485001000.250.82.613.901.82.10.677.80.20.21000.51.24.222.40.12.93.51621.21.61000.751.55.228.70.23.74.51.349.82.22.910011.75.9340.24.451.441.12.73.61001.51.86.840.70.35.35.51.529.93.64.710021.55.935.40.94.64.61.320.11114.61002.51.56.136.714.84.71.31811.114.810031.66.237.514.94.81.316.611.214.910041.66.438.51551.414.811.315.1100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2510001000.599.80.21000.7599.60.4100199.50.51001.599.10.9100295.94.11002.594.95.1100393.96.11004928100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05013.4000086.60001000.10110000890001000.2507.200.100883.50.60.61000.508.40.20.60.10.270.6143.62.41000.7507.20.20.70.10.267174.72.9100107.40.20.70.10.364.618.45.13.11001.509.60.310.20.450.726.17.24.410020.14.90.61.90.30.719.448.117.36.71002.50.14.40.51.70.30.614.452.716.58.910030.14.20.51.60.30.611.954.217.79.210040.14.30.51.60.30.61055.2189.4100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.80.21000.599.30.71000.7598.61.4100198.11.91001.596.93.1100286.513.51002.583.616.410038119100476.223.8100Office Technology Parkno runoff for 0.01 inch rain; therefore starts at 0.05 inch rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.10.2095.53.90.31000.50.70.90.174.5221.81000.751.21.60.156.737.4310011.51.90.146.546.23.71001.51.92.40.132.658.24.710022.53.30.29.578.16.31002.52.63.30.28.5796.410032.63.30.27.979.66.410042.63.40.2780.36.5100

Fecal Colif


Cu


Pb


Zn

Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ StorageUnpaved Parking/ Storage 1Unpaved Parking/ Storage 2DrivewaysSidewalks/ Walks 1Street Area 1Landscaped Area

E Coli





TDS sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0149.10050.900000001000.059.800.67.7017.405059.501000.113.603.26.8016.204.7055.501000.2513.10.25.36.40.115.10.14.4051.73.71000.510.80.64.75.60.313.80.240.147.112.81000.759.50.84.35.30.413.20.33.80.14517.210019.40.94.35.50.412.80.33.70.243.818.71001.591.14.25.80.512.30.43.60.24221.310025.52.42.63.717.50.82.20.425.748.11002.55.52.42.73.717.50.82.20.425.84810035.42.42.73.817.60.82.20.42647.710045.42.32.73.817.70.82.20.426.447.2100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.015.5088.26.3000001000.052.85.333.82.41.17.447.2001000.13.324.725.61.80.95.937.8001000.252.836.421.71.60.74.931.50.10.21000.52.635.821.21.50.8531.90.30.91000.752.534.921.21.50.85.132.40.41.210012.434.722.11.60.8531.70.51.41001.52.334.623.21.70.74.830.60.51.610022.232.822.51.60.74.528.61.95.41002.52.23322.71.60.74.428.31.85.310032.133.222.71.60.74.428.31.85.210042.133.122.71.60.74.528.51.85.1100IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Driveways 1Sidewalks/ Walks 1Street Area 1Landscaped AreaLand Use Totals0.014.9052.442.7000001000.0550.840.633.103.70.716.201000.17.34.537.530.603.60.615.801000.257.17.536.329.603.40.6150.31000.56.57.535.5290.43.50.615.31.51000.756.17.335.528.80.53.50.615.42.110015.97.136.129.30.73.40.614.82.31001.55.56.836.8300.73.20.613.82.510024.96.634.327.82.32.80.512.48.31002.54.96.634.5282.32.80.512.28.210034.86.734.6282.32.80.512.2810044.76.734.628.12.22.80.512.47.9100InstitutionalRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.0113.6072.1014.30000001000.058.74.135.106.97.64.333.20001000.110.719.727.205.46.33.527.30001000.259.429.623.604.75.3323.20.50.10.61000.58.428.622.50.24.55.33231.90.22.51000.757.827.622.30.24.45.3323.12.60.33.410017.627.3230.24.55.12.922.42.80.33.71001.57.326.823.90.34.74.92.821.43.20.44.210025.922.6200.8442.217.29.61.112.61002.55.822.720.30.843.92.217.19.51.112.510035.722.920.30.843.92.217.29.41.112.410045.72320.40.8442.317.49.21.112.2100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.60.41000.598.31.71000.7597.62.4100197.52.51001.597.32.7100290.99.11002.591.18.9100391.28.8100491.38.7100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05020.3000079.70001000.1019.4000080.60001000.250170.10.40.10.269.257.10.81000.50.111.80.21.20.20.450.113.819.72.31000.750.110.10.31.50.30.543.516.8242.910010.110.20.31.50.30.64117.725.331001.50.110.10.31.70.30.637.219.127.33.210020.24.30.52.50.50.915.429.241.64.91002.50.24.40.52.50.50.915.429.141.64.910030.24.50.52.50.50.915.62941.44.910040.24.50.52.50.50.915.928.941.24.9100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2598.81.21000.595.54.51000.7593.76.3100193.46.61001.592.87.2100278.421.61002.578.821.210037921100479.320.7100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.251.60.30.185.611.50.91000.54.30.90.260.931.22.51000.755.210.252.737.83.110015.51.10.249.9403.21001.561.20.245.643.53.5100291.80.318.565.15.31002.591.80.318.665.15.3100391.80.318.864.95.210048.91.80.319.264.65.2100






Roofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1

Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Driveways 1Sidewalks/ Walks 1Street Area 1Landscaped Area

Filterable P sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0168.20031.800000001000.05700.42.501905.5065.501000.11002.32.201805.2062.201000.258.80.13.62015.40.14.5053.312.31000.55.90.32.61.40.111.50.23.30.139.734.91000.754.80.42.21.20.110.10.22.90.134.94310014.60.52.11.20.19.60.22.80.133.145.61001.54.20.521.20.18.80.32.60.130.449.810021.80.80.90.50.23.70.41.10.212.877.61002.51.80.80.90.50.23.70.41.10.212.977.610031.80.80.90.60.13.80.41.10.21377.410041.80.80.90.60.13.90.41.10.213.377100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.013.3090.26.4000001000.051.93.739.52.82.919.429.7001000.12.518.432.12.32.516.725.5001000.252.227.727.722.114.121.60.52.21000.51.925.525.31.8213.420.51.77.91000.751.723.924.41.7213.120.12.410.810011.623.4251.81.912.619.32.611.61001.51.522.825.81.81.811.918.32.913.110021.116.118.51.31.38.312.77.433.41002.51.116.218.81.31.28.212.67.333.11003116.418.91.31.38.312.77.332.81004116.5191.41.38.412.87.232.5100IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 2DrivewaysSidewalks/ Walks 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.0110.5049.340.200000001000.052.90.510.48.507.91.468.40001000.14.22.69.67.807.71.466.70001000.254.14.49.37.50.37.31.363.20.10.22.31000.53.548.36.80.86.81.259.20.50.78.11000.753.13.87.96.51.16.61.257.20.7110.910013.13.78.26.71.26.41.255.70.71.111.91001.52.93.78.671.36.21.153.40.81.213.6100222.76.153.54.30.836.42.13.134.11002.522.76.25.13.44.30.836.42.13.134100322.86.25.13.44.30.836.62.1333.7100422.86.35.13.44.30.837.12.1333.3100InstitutionalRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.017.8069.2023.10000001000.055.62.638012.713.97.919.30001000.17.513.731.8010.612.3717.20001000.256.32026.80.18.910.25.814.23.20.24.31000.54.816.321.60.37.28.54.811.910.30.813.61000.754.114.419.60.36.57.84.410.913.3117.510013.913.919.70.36.67.44.210.3141.118.51001.53.613.119.70.46.66.83.89.415.31.220.210021.86.810.10.73.43.41.94.728.12.1371002.51.86.910.30.73.43.41.94.727.92.136.910031.8710.40.73.53.41.94.727.82.136.710041.7710.50.73.53.524.827.62.136.5100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2598.31.71000.593.46.61000.7590.99.1100190.59.51001.589.710.3100271291002.571.528.5100371.728.3100472.127.9100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.050130000870001000.1012.4000087.60001000.2508.700.40.10.16014.713.52.51000.504.40.10.80.10.331.929.927.45.11000.7503.50.10.80.20.325.433.430.55.7100103.40.10.90.20.323.434.431.45.81001.503.30.10.90.20.320.535.832.86.110020.11.10.11.10.20.46.743.339.67.41002.50.11.10.11.10.20.46.743.339.67.410030.11.10.11.10.20.46.843.339.57.310040.11.20.11.10.20.4743.239.57.3100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2595.34.71000.583.716.31000.7578.421.6100177.622.41001.57624100247.152.91002.547.752.310034852100448.451.6100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.70.20.132.661.551000.50.90.30.111.280.96.51000.750.90.30.18.383.66.810010.90.30.17.584.46.81001.50.90.30.16.485.46.9100210.30.11.889.57.21002.510.30.11.889.57.2100310.30.11.889.57.2100410.30.11.989.57.2100







Roofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1

Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 2DrivewaysSidewalks/ Walks 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1

Total P sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0154.60045.400000001000.054.700.34.101302.4075.601000.16.201.43.4011.302.1075.701000.254.40.11.82.407.901.5077.64.31000.54.50.322.60.190.11.6061.118.61000.753.70.31.72.30.280.21.50.158.923.210013.70.41.72.40.27.80.21.40.15725.31001.54.20.51.92.90.28.80.31.60.145.53410022.211.11.60.54.70.50.90.220.167.31002.52.311.11.70.54.90.50.90.218.168.910032.311.11.80.550.50.90.216.869.810042.411.21.80.55.20.610.215.271100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.013.4090.26.4000001000.051.83.436.32.6210.443.6001000.11.611.620.21.41.26.157.8001000.251.72221.91.61.26.543.90.211000.51.925.725.51.81.57.930.20.84.81000.751.926.627.11.91.68.523.91.27.210011.927.228.92.11.68.520.41.38.11001.51.927.530.92.21.68.416.61.69.410021.421.524.71.81.26.511.74.426.71002.51.421.825.21.81.26.411.24.426.610031.422.125.31.81.26.510.94.426.410041.422.325.51.81.26.610.64.326.2100IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped AreaLand Use Totals0.015.605242.400000001000.053.10.52822.8008.50.936.2001000.13.42.119.115.5006.10.653.2001000.253.84.121.617.60.10.26.80.743.60.11.31000.544.724.119.70.20.77.90.831.30.46.11000.753.94.72520.40.418.30.925.70.58.910013.94.726.321.50.41.18.20.922.50.69.91001.53.84.727.622.50.41.37.90.818.90.711.310022.73.620.816.91.23.55.80.612.91.830.21002.52.73.721.117.21.23.45.80.612.51.83010032.73.821.317.31.23.45.80.612.31.829.810042.73.821.517.41.23.45.90.612.21.829.6100InstitutionalRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Landscaped AreaLand Use Totals0.017.90070.4021.7000001000.053.81.8025.807.17.83.450.4001000.135.6013.203.64.21.868.6001000.253.611.5015.604.34.92.2551.21.71000.54.113.90.118.70.25.16.12.735.25.981000.754.114.30.119.90.35.56.62.925.48.912.210014.114.70.121.40.35.96.62.920.31013.71001.54.114.80.122.70.46.26.52.814.911.615.910022.38.60.313.50.83.73.71.67.424.533.31002.52.38.80.313.80.83.83.71.66.924.533.610032.38.90.3140.83.83.81.76.624.433.510042.390.314.20.83.93.81.76.224.433.4100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.80.21000.59911000.7598.21.8100197.62.41001.596.33.7100285.314.71002.583.316.7100381.518.5100478.821.2100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.0509.2000090.80001000.107.6000092.40001000.2504.800.100.185.17.41.21.31000.504.70.10.60.10.259.125.94.94.41000.7503.90.10.70.10.253.730.35.85.1100103.90.10.70.10.350.932.36.25.51001.504.60.20.90.20.337.641.27.9710020.11.90.21.40.20.512.262.212.291002.50.11.70.21.20.20.49.365.110.711.110030.11.60.21.10.20.47.966.810.311.310040.11.70.21.10.20.46.967.510.411.5100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.30.71000.596.63.41000.7593.96.1100192.17.91001.588.511.5100263.436.61002.560.139.9100357.542.5100453.846.2100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.50.2069.527.62.21000.51.20.40.126.566.55.41000.751.40.50.115.776.26.210011.40.50.112.279.36.41001.51.50.50.18.682.66.710021.60.50.12.388.37.11002.51.60.50.12.288.47.210031.60.50.12.188.57.210041.60.50.12.188.57.2100







Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Landscaped Area

Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area

Nitrate plus nitrite sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0159.20040.800000001000.0520.301.210.6012.303.605201000.126.306.28.7010.703.1045.101000.2524.90.310.18.20.19.802.9041.62.11000.521.61.39.47.50.49.40.22.70.139.97.51000.7519.71.88.97.30.59.30.22.70.139.210.4100119.41.98.87.60.59.10.22.60.138.311.31001.518.72.28.880.68.70.32.50.137131002135.66.25.81.66.10.71.80.325.733.31002.512.95.66.35.91.66.10.71.80.325.733.1100312.95.66.45.91.66.10.71.80.325.932.9100412.75.56.461.66.20.71.80.326.332.6100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.015088.76.3000001000.053.15.941.930.74.740.7001000.13.627.1312.20.63.731.8001000.253.139.425.91.90.5326.100.11000.52.839.125.51.80.53.126.700.51000.752.738.325.71.80.53.127.300.710012.63826.61.90.53.126.600.71001.52.537.727.920.42.925.600.810022.436.927.920.42.824.60.12.91002.52.43728.120.42.824.402.910032.437.228.120.42.824.302.810042.337.12820.42.824.502.8100IndustrialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Landscaped AreaLand Use Totals0.0118.80044.736.50000001000.0516.72.6030.124.6004.80.920.301000.121.113024.219.7004.10.717.201000.2519.420.50.12217.900.13.70.715.30.31000.51820.40.221.717.70.10.43.80.715.81.21000.7517200.321.817.80.20.53.80.716.11.7100116.619.70.422.518.30.20.63.70.715.51.81001.515.819.30.423.419.10.20.63.50.614.82.1100214.217.71.421.917.80.72.23.20.613.371002.51417.81.422.1180.72.13.10.613.26.9100313.917.91.322.3180.72.13.10.613.26.8100413.7181.322.3180.72.13.20.613.46.7100InstitutionalRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.0113.50078.707.8000001000.05104.7044.304.44.82.729.1001000.111.921.9033.503.33.92.223.3001000.2510.332.7028.802.93.31.819.60.30.31000.59.532.10.2280.12.83.31.919.911.31000.758.931.20.2280.22.83.41.920.21.41.910018.730.80.228.90.22.93.31.819.61.621001.58.330.40.330.10.233.11.818.71.82.310027.327.10.927.40.62.72.71.516.45.77.51002.57.227.20.927.70.62.82.71.516.35.67.410037.127.40.927.70.62.82.71.516.35.67.31004727.50.927.80.62.82.71.516.55.57.2100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.80.21000.599.20.81000.7598.81.2100198.81.21001.598.71.3100295.44.61002.595.54.5100395.64.4100495.64.4100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05028.7000071.30001000.1027.6000072.40001000.250.126.60.10.40.10.168.43.40.20.61000.50.222.60.51.30.20.460.411.60.721000.750.320.90.61.70.30.656.815.312.610010.321.40.71.80.30.654.616.412.81001.50.421.90.720.40.751.318.41.23.110020.813.11.64.30.81.429.639.22.56.61002.50.813.41.64.30.81.429.6392.56.610030.813.51.54.30.81.429.938.82.56.610040.813.61.54.20.81.430.338.42.46.5100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.40.61000.597.82.21000.7596.83.2100196.73.31001.596.43.6100288.311.71002.588.511.5100388.711.3100488.811.2100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.252.20.5089.27.50.61000.56.31.40.168.4221.81000.757.81.70.260.827.32.210018.41.80.258.129.22.41001.59.220.253.832.22.6100215.23.30.32452.94.31002.515.23.30.324.152.94.3100315.13.30.324.352.74.31004153.30.324.852.34.2100







Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1

Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Landscaped Area

TKN sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0154.40045.600000001000.0511.400.78.1017.303.2059.301000.114.703.56.6014.902.8057.501000.25110.24.54.90.110.902058.38.11000.59.30.64.14.40.210.20.21.90.139.929.21000.757.60.73.43.80.390.21.70.137.435.910017.30.73.33.90.38.60.21.60.135.638.41001.57.40.93.54.30.38.70.31.60.126.946.110023.31.41.620.63.90.40.70.110.375.81002.53.31.41.62.10.63.90.40.70.19.476.410033.31.41.72.10.640.40.70.18.976.710043.41.51.72.10.64.10.40.80.18.377.1100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.016.5087.36.2000001000.052.54.835.52.51.24.848.6001000.12.216191.40.72.758.1001000.252.32919.81.40.72.843.300.71000.52.534231.60.83.431.40.13.11000.752.535.524.71.80.93.726.20.14.710012.536.226.41.90.93.722.90.15.31001.52.536.828.320.93.719.40.16.210022.131.9251.80.83.115.50.419.41002.52.132.225.41.80.83.114.90.419.310032.132.625.51.80.83.114.60.419.110042.132.825.71.80.83.214.40.418.9100IndustrialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.0120.60043.735.70000001000.0511.21.8030.524.806.50.724.5001000.1127.3020.616.804.70.538.2001000.2512.613.3021.517.50.14.80.528.20.11.41000.512.714.40.22318.80.45.30.618.30.461000.7512.314.40.223.619.30.55.50.614.30.58.7100112.114.30.324.6200.75.40.6120.69.51001.511.514.10.325.620.90.75.20.69.70.710.810028.510.60.819.8161.93.90.46.61.829.61002.58.510.70.820.116.31.93.90.46.41.829.210038.410.90.820.216.41.93.90.46.21.82910048.310.90.820.416.51.940.46.11.828.8100InstitutionalRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.0117.90073.708.4000001000.057.83.7029.603.55.52.247.6001000.16.612.1015.801.93.11.259.2001000.257.122.6017023.21.344.70.91.21000.57.625.80.119.20.12.33.81.530.545.21000.757.526.20.220.10.12.44.11.624.15.97.910017.526.70.221.30.12.541.620.76.68.71001.57.326.80.222.60.22.73.91.616.97.610.110024.918.30.615.80.41.92.61.110.518.825.41002.54.918.50.616.10.41.92.61.110.118.825.910034.918.80.616.20.41.92.71.19.918.724.810044.8190.616.40.41.92.71.19.718.624.7100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.70.31000.598.41.61000.7597.12.9100196.33.71001.594.75.3100280.519.51002.578.721.3100377.222.810047525100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05020.1000079.90001000.1017.5000082.50001000.25010.50.10.200.167.517.51.131000.50.17.50.20.50.10.236.644.23.37.51000.750.15.90.20.50.10.231.349.53.88.410010.15.90.20.50.10.22951.53.98.71001.50.160.20.60.10.220.657.94.49.810020.12.10.30.80.10.3673.95.810.61002.50.11.80.20.60.10.24.674.74.912.710030.11.70.20.60.10.2475.64.712.810040.11.70.20.60.10.23.775.84.712.9100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2598.81.21000.594.75.31000.7590.99.1100188.711.31001.584.515.5100256.343.71002.553.946.1100352.147.9100449.650.4100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.80.2077.120.31.61000.52.10.50.135.7574.61000.752.50.60.12368.35.510012.70.60.118.772.25.81001.52.80.60.113.976.46.210023.20.70.13.985.36.91002.53.20.70.13.885.46.910033.20.70.13.785.46.910043.20.70.13.785.56.9100








Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1

COD sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0147.30052.700000001000.058.800.59.5013.802.8064.601000.111.402.77.901202.5063.501000.2590.13.66.10.19.201.906821000.59.40.64.16.80.310.60.22.20.157.18.71000.758.20.73.76.30.49.90.22.10.157.111.310018.10.83.76.60.59.80.220.155.812.51001.59.11.14.38.10.6110.32.30.146.516.710026.32.735.81.67.60.81.60.327.542.71002.56.42.83.16.11.77.80.91.60.325.543.710036.52.83.26.21.780.91.70.324.244.310046.62.93.36.41.78.40.91.70.322.645100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.014.3089.46.4000001000.052.24.142.630.73.344.2001000.121525.31.80.5253.3001000.252.126.9261.90.52.140.500.11000.52.33129.82.10.52.531.300.61000.752.332.231.82.30.62.727.400.810012.332.733.82.40.62.724.700.91001.52.233.136.12.60.62.621.701.110022.132.3362.60.62.519.90.13.91002.52.132.536.42.60.52.519.30.13.910032.132.836.52.60.52.5190.13.810042.132.936.62.60.62.518.80.13.8100IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.017.1051.241.700000001000.054.10.633.627.4003.40.430.4001000.14.72.924.820.2002.70.344.4001000.255.25.527.222.200.12.90.436.200.21000.55.56.330.224.60.20.63.30.427.70.11.11000.755.46.431.525.70.30.93.50.4240.21.610015.36.432.926.90.313.40.421.40.21.71001.55.16.334.428.30.41.13.30.418.50.3210024.5631.826.21.23.62.90.415.80.86.61002.54.56.132.226.51.23.52.90.415.30.86.510034.46.132.426.61.23.52.90.415.20.86.410044.46.232.526.71.23.530.415.10.86.4100InstitutionalRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.0122.40070.607000001000.058.54031.703.64.31.846.1001000.16.912.6016.301.92.3159001000.257.623.9017.8022.51.144.40.40.31000.58.629.10.121.40.22.43.11.330.51.81.21000.758.830.90.223.40.42.73.51.5242.81.91001931.80.325.20.42.93.51.520.13.22.11001.58.932.60.327.30.53.13.51.5163.82.510027.527.80.923.71.52.72.91.212.211.67.91002.57.428.10.924.21.52.82.91.211.511.67.910037.428.50.924.31.52.82.91.211.111.57.810047.328.80.924.51.42.831.310.811.47.7100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.90.11000.599.50.51000.7599.10.9100198.91.11001.598.31.710029371002.592.17.9100391.48.6100490.39.7100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05020.4000079.60001000.1017.7000082.30001000.250120.10.40.10.176.69.30.70.71000.50.110.80.21.60.30.252.329.22.92.41000.750.190.31.90.30.347.234.53.62.810010.19.10.320.40.344.536.63.831001.50.110.10.32.40.40.433.744.34.63.610020.14.20.53.50.60.511.566.38.24.51002.50.13.70.430.50.58.9707.45.610030.13.40.42.80.50.47.771.47.65.710040.13.50.42.80.50.47.171.77.75.7100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.60.41000.598.41.61000.7597.12.9100196.33.71001.594.65.4100280.419.61002.578.521.5100377.122.910047525100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.90.3088.79.70.41000.53.210.15836.31.41000.754.31.40.143.948.41.910014.71.50.138.453.22.11001.55.31.70.131.459.22.310026.92.20.110.577.331002.56.92.20.110.377.5310036.92.20.110.277.5310046.92.20.110.277.53100








Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1

Fecal coliform bacteria sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.015.10094.900000001000.051.800.124.809.4015.6048.301000.12.600.623.409.4015.6048.301000.252.601.1230.39.10150.146.52.21000.52.20.1120.818.60.114.10.443.87.81000.7520.20.919.91.48.30.213.70.542.410.6100120.20.920.61.58.10.213.30.641.211.61001.51.90.20.921.51.77.70.212.70.739.413.110021.30.60.615.54.35.40.68.81.727.433.71002.51.30.60.615.84.35.40.68.81.727.433.610031.30.60.615.94.35.40.68.91.727.533.310041.30.50.615.94.25.50.691.627.932.9100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010.3093.16.6000001000.050.20.445.43.20.519.730.6001000.10.32.143.33.10.519.930.8001000.250.33.542.630.519.229.80.20.81000.50.23.440.62.90.519.129.50.731000.750.23.239.82.80.518.929.30.94.210010.23.2412.90.518.328.414.51001.50.23.142.530.517.4271.15.110020.22.737.22.70.414.722.83.515.91002.50.22.737.72.70.414.622.63.515.710030.22.737.82.70.414.622.73.415.510040.22.737.72.70.414.822.93.415.3100IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2DrivewaysSidewalks/ Walks 1Street Area 1Landscaped AreaLand Use Totals0.017.405141.60000001000.051.60.28.36.8004.60.877.701000.12.31.47.76.3004.60.876.801000.252.42.57.86.3004.50.875.40.31000.52.12.47.46.100.14.50.875.21.31000.7522.37.360.10.24.50.875.11.7100122.37.76.30.10.24.40.874.31.81001.51.92.58.36.70.10.24.30.8732.210021.82.486.50.30.84.10.767.97.61002.51.82.58.16.60.30.84.10.767.77.510031.82.58.16.60.30.84.10.767.77.410041.72.58.16.60.30.84.20.768.17.3100InstitutionalRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.010.4097.602000001000.050.40.271.301.42.68.415.6001000.10.61.269.401.42.78.616.1001000.250.62.168.80.11.42.68.415.60.20.21000.50.62670.51.32.78.515.90.60.81000.750.61.966.30.71.32.78.515.90.91.210010.51.967.40.81.32.58.115.20.91.31001.50.51.868.70.91.42.47.614.211.510020.41.863.82.91.32.16.812.73.44.71002.50.41.864.32.91.32.16.712.63.44.710030.41.864.42.81.32.16.712.63.34.710040.41.864.32.81.32.16.812.73.34.5100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2598.41.61000.594.15.91000.7591.88.2100191.58.51001.590.89.2100273.426.61002.573.926.1100374.125.9100474.425.6100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05070000930001000.106.6000093.40001000.2506.600.70.10.1910.80.70.11000.505.90.12.40.40.285.32.72.50.51000.7505.60.23.20.60.382.53.73.40.6100105.90.23.50.60.38143.70.71001.506.20.24.10.70.478.74.74.30.8100204.60.510.61.9155.912.211.22.11002.504.70.510.61.9155.912.211.12.1100304.70.510.51.9156.212.1112100404.70.510.31.9156.811.910.92100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2595.94.11000.585.314.71000.7580.419.6100179.620.41001.578.121.9100250.149.91002.550.749.3100351.148.9100451.548.5100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.20.70.289.55.83.61000.50.520.76917.110.61000.750.62.50.961.421.313.210010.72.70.958.822.814.21001.50.73154.525.115.610021.24.91.724.541.725.91002.51.24.91.724.641.625.910031.24.91.724.841.525.810041.24.91.725.341.225.7100








Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2DrivewaysSidewalks/ Walks 1Street Area 1Landscaped Area

Copper sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0133.50066.500000001000.058.900.515.4018.304052.901000.111.802.812.9016.303.6052.601000.259.70.13.910.60.113.10.12.9058.411000.510.10.64.411.70.615.10.23.30.149.44.41000.7590.8411.10.814.40.33.20.150.45.910018.90.9411.60.814.20.43.10.149.36.51001.59.81.24.613.91.115.70.53.40.241.18.610027.83.43.711.53.212.51.42.70.528.125.11002.583.43.9123.312.81.42.80.526.325.7100383.5412.33.313.11.42.90.52525.910048.13.54.112.63.413.61.430.523.526.2100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.012091.46.5000001000.050.91.738.52.70.73.152.5001000.10.75.420.21.40.41.770.2001000.250.911.424.71.80.42.158.7001000.51.115.433.22.40.62.944.200.21000.751.217.338.32.70.73.43600.310011.318.242.230.73.530.60.10.41001.51.319.146.83.30.83.524.60.10.510021.319.2483.40.83.521.80.21.81002.51.319.5493.50.83.520.50.21.810031.319.849.43.50.83.519.80.21.710041.32049.93.60.83.6190.21.7100IndustrialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Small Landscaped Area 1Land Use Totals0.0110.70049.240.10000001000.0513.42.1029.924.4004.10.525.701000.114.18.6019.916.2002.90.43801000.2514.815.7020.716.900.12.90.428.30.11000.515.617.60.223.218.90.10.33.40.419.90.41000.7515.418.10.324.5200.20.53.70.516.30.5100115.318.20.325.720.90.20.53.60.514.10.61001.514.918.20.427.122.10.20.63.50.411.80.7100213.917.31.326.321.70.723.40.410.32.61002.513.817.41.326.7220.723.20.49.92.6100313.617.61.326.8220.71.93.30.49.72.6100413.517.71.326.922.10.71.93.30.49.62.5100InstitutionalRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.016.3084.409.3000001000.052.61.231.903.43.71.755.5001000.12.13.816.201.720.973.3001000.252.68.420.402.22.51.162.70.10.11000.53.411.828.10.133.51.647.50.40.61000.753.813.432.90.23.54.21.938.50.70.91001414.236.70.23.94.4232.70.81.11001.54.115.141.20.34.44.52.125.911.410023.914.940.10.94.24.2221.63.54.81002.53.915.1410.94.34.3220.33.54.810033.815.441.50.94.44.3219.53.54.810043.815.6420.94.44.4218.63.54.8100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2510001000.510001000.7599.90.1100199.90.11001.599.80.2100299.20.81002.5991100398.91.1100498.61.4100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05034.6000065.40001000.1030.9000069.10001000.250240.10.30.10.172.41.710.31000.50.125.70.51.40.20.559.36.94.21.21000.750.123.10.71.80.30.657.68.85.51.510010.123.70.71.90.30.755.49.65.91.61001.50.227.90.92.40.40.945.312.37.62.110020.317.225.411.923.227.117.84.21002.50.317.125.20.91.920.629.317.7510030.317.11.95.10.91.819.230.418.15.210040.317.525.20.91.918.130.718.35.2100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2510001000.599.80.21000.7599.70.3100199.60.41001.599.40.6100297.22.81002.596.73.3100396.33.7100495.64.4100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.30.2098.31.10.11000.51.61.20.189.96.70.51000.7532.20.181.412.2110013.92.80.276.115.81.31001.55.33.90.367.321.61.7100210.97.90.53344.23.61002.511.180.531.6453.6100311.28.10.530.945.63.7100411.48.20.529.946.23.7100








Roofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Small Landscaped Area 1

Lead sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0144.30055.700000001000.0516.40117.3016.102.5046.701000.120.504.813.6013.502.1045.601000.25160.26.510.60.110.301.6052.81.91000.516.717.211.70.611.80.21.80.140.88.21000.7514.61.36.610.90.711.20.31.70.141.910.8100114.41.46.511.40.810.90.31.70.140.711.81001.515.91.97.413.61.1120.41.80.130.315.5100210.94.75.29.72.78.30.91.30.216.639.41002.511.14.85.410.22.88.50.91.30.214.540.2100311.34.95.610.42.88.70.91.30.313.140.6100411.44.95.710.82.99.111.40.311.441.2100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.012.50916.5000001000.051.42.748.13.40.62.241.5001000.11.28.625.11.80.41.261.8001000.251.417.429.42.10.41.447.800.11000.51.722.938.32.70.61.931.500.51000.751.825.343.43.10.62.222.700.810011.826.347.23.40.72.217.500.91001.51.827.151.43.70.72.2120110021.826.751.73.70.62.29.50.13.71002.51.82752.53.70.62.28.50.13.710031.727.352.83.80.62.27.80.13.710041.727.653.33.80.62.270.13.7100IndustrialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.013.705343.300000001000.052.40.438.431.3006.10.620.7001000.12.71.727.122.1004.60.441.4001000.253.13.330.925.200.15.10.531.300.41000.53.43.835.829.20.20.56.20.618.40.11.61000.753.44.13831.10.30.86.60.612.50.22.510013.34.139.732.50.30.96.50.69.30.22.71001.53.2441.433.90.316.20.66.10.23.110022.83.837.430.71.13.35.50.54.40.69.91002.52.73.837.8311.13.25.50.53.90.69.810032.73.83831.21.13.25.50.53.60.69.710042.73.838.231.41.13.25.50.53.30.69.6100InstitutionalRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.018.80083.208000001000.053.21.503302.73155.7001000.12.34.3015.501.31.50.574.6001000.2539.6019.801.61.90.663.20.10.21000.54.113.90.128.40.12.42.80.945.70.711000.754.616.10.134.10.12.83.41.134.71.31.610014.917.40.138.40.23.23.61.127.61.521001.55.118.70.243.50.23.63.81.219.51.82.410024.617.10.640.60.73.43.41.114.46.18.11002.54.617.40.641.70.73.53.41.112.96.18.110034.617.80.642.20.73.53.41.111.96.18.110044.618.10.642.90.73.63.51.110.76.18.1100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2510001000.599.90.11000.7599.70.3100199.60.41001.599.40.610029731002.596.43.6100395.74.3100494.55.5100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05038.2000061.80001000.1033.4000066.60001000.25023.30.10.200.169.3510.91000.50.123.40.510.20.448.717.7531000.750.2200.61.20.20.445.921.46.53.610010.220.20.61.30.20.543.422.86.93.91001.50.223.30.81.60.30.63128.78.74.910020.310.71.32.60.50.910.947.718.26.71002.50.39.61.12.30.40.88.251.517.18.710030.3912.10.40.86.852.618.18.910040.39.212.10.40.85.95318.39100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.90.11000.599.50.51000.75991100198.61.41001.597.82.2100290.29.81002.588.111.9100386.213.8100482.717.3100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.50.3095.93.10.21000.52.81.60.176.617.51.41000.754.82.70.159.730.22.4100163.40.15037.531001.57.74.30.236.347.73.9100210.760.211.266.55.41002.510.86.10.210.267.35.4100310.96.10.29.567.85.51004116.20.28.668.55.5100








Roofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1

Zinc sources by rain depthResidentialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Driveways 2Sidewalks/ Walks 1Sidewalks/ Walks 2Street Area 1Small Landscaped Area 1Land Use Totals0.0144.90055.100000001000.0515.100.917.8010.501.6054.101000.119.304.514.408.901.4051.501000.2515.80.26.411.70.17.101.1056.60.91000.516.517.2130.68.20.11.2048.141000.7514.71.36.612.30.87.90.21.2049.45.4100114.61.46.612.90.97.80.21.20.148.35.91001.5161.97.515.41.28.50.31.30.140.17.7100212.85.56.112.83.66.80.810.227.722.71002.5135.66.313.33.670.81.10.225.823.2100313.25.76.513.73.77.20.81.10.224.623.4100413.35.86.7143.77.40.81.10.223.223.7100CommercialRain TotalRoofs 1Roofs 2Paved Parking/ Storage 1Paved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.014.7088.96.4000001000.052.34.341.830.41.446.7001000.11.813.521.11.50.20.861001000.2522623.31.70.20.845.9001000.52.432.929.32.10.31.131.700.11000.752.535.832.82.30.41.224.700.210012.637.135.52.50.41.320.400.31001.52.638.238.62.80.41.315.80.10.310022.538.439.52.80.41.213.80.21.11002.52.538.740.12.90.41.212.90.21.110032.539.140.32.90.41.212.30.21.110042.539.440.62.90.41.311.70.21.1100IndustrialRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Paved Parking/ Storage 3Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Driveways 1Sidewalks/ Walks 1Street Area 1Small Landscaped Area 1Land Use Totals0.0113.30047.838.90000001000.059.21.4035.929.3002.40.221.601000.110.56.402621.2001.80.23401000.251111.7027.222.2001.90.225.70.11000.511.4130.229.924.40.10.22.20.218.10.31000.7511.313.20.231.325.60.10.32.30.214.90.5100111.113.10.232.626.70.10.32.20.212.90.51001.510.6130.334.127.90.10.42.10.210.70.610021012.5133.327.40.41.220.29.62.41002.59.912.5133.727.70.41.220.29.22.310039.812.60.933.827.70.41.220.292.310049.712.70.933.927.80.41.220.28.92.3100InstitutionalRain TotalRoofs 1Roofs 2Roofs 3Paved Parking/ Storage 1Unpaved Parking/ Storage 1Playground 1Driveways 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.0114.80083.701.5000001000.057.13.303601.51.60.550001000.15.510.1017.700.70.80.365001000.256.420.2020.400.80.90.350.80.10.11000.57.826.40.126.501.11.30.435.60.30.51000.758.329.20.230.10.11.21.50.527.70.60.710018.630.50.232.90.11.31.50.522.80.60.81001.58.731.90.336.30.11.51.50.517.40.81.110028.230.6135.60.31.41.40.414.52.73.71002.58.231136.30.31.51.40.413.52.73.710038.131.5136.60.31.51.40.412.82.63.710048.131.8136.90.31.51.50.512.22.63.7100Urban FreewaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2510001000.599.90.11000.7599.90.1100199.80.21001.599.70.3100298.51.51002.598.21.8100397.82.2100497.22.8100Open SpaceRain TotalRoofs 1Paved Parking/ Storage 1Paved Parking/ Storage 2Unpaved Parking/ Storage 1Unpaved Parking/ Storage 2Playground 1Street Area 1Large Landscaped Area 1Undeveloped AreaSmall Landscaped Area 1Land Use Totals0.010100000000001000.05037.7000062.30001000.1033.9000066.10001000.25026.70.10.200.170.31.310.21000.50.128.90.60.70.10.258.45.64.30.91000.750.226.30.80.90.20.357.47.25.61.210010.227.10.810.20.355.27.861.31001.50.331.91.11.20.20.445.4107.71.710020.621.12.52.90.51.12523.718.73.91002.50.621.62.52.90.5122.924.918.84.210030.621.82.52.90.5121.625.619.14.310040.622.42.52.90.51.120.425.819.34.4100Rural HighwaysRain TotalPavd Lane & Shouldr Area 1Large Turf AreasLand Use Totals0.0110001000.0510001000.110001000.2599.90.11000.599.70.31000.7599.50.5100199.30.71001.598.91.1100294.85.21002.593.86.2100392.77.3100490.89.2100Office Technology Parkno 0.01" event flows; starts at 0.05 inches of rainRain TotalRoofs 1Paved Parking/ Storage 1Sidewalks/ Walks 1Street Area 1Large Landscaped Area 1Small Landscaped Area 1Land Use Totals0.05000100001000.1000100001000.250.80.2097.910.11000.54.71.4087.360.51000.758.52.60.177.110.90.9100110.93.30.170.713.91.11001.514.74.40.160.518.71.5100227.38.20.226.734.82.81002.527.88.30.225.435.42.9100328.18.40.224.635.82.9100428.58.50.223.736.22.9100




Roofs 1Paved Parking/ S

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