Philadelphia Low Impact 
Development Symposium

Greening the Urban Environment

September 25-28, 2011, Philadelphia, PA

Image courtesy of Philadelphia Water Dept.

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Sunday, September 25, 2011

9:00am - 4:30pm Pre-Conference Workshops
9:00am - 12:00pm - LID 101: Basic Concepts and Applications
9:00am - 12:00pm - Extensive Green Roof Design for Civil/Stormwater Engineers
1:00pm - 4:30pm - LID 201: Design Guidelines for LID Practices
1:00pm - 4:30pm - Permeable/Pervious Pavement

Workshop descriptions can be found by clicking here.

Pre-Conference Workshops
9:00am - 4:30pm
Commonwealth Rooms

Monday, September 26 - Plenary Session

Mr. Howard Neukrug 
Commissioner
Philadelphia Water Department

We are pleased to have Commissioner Howard Neukrug of the Philadelphia Water Department as our Plenary Speaker. Commissioner Neukrug has been the driving force behind the Green City, Clean Waters approach to solutions to the city's Combined Sewer Overflow challenges. Links to the city's plan can be found here:http://www.phillywatersheds.org/what_were_doing/documents_and_data/cso_long_term_control_plan/

Joining Commissioner Neukrug in welcoming the participants will be:

• Robert G. Traver, PhD, PE, WRE, Professor and Director, VCASE and VUSP, Conference Chair
• Tom Davenport - Director, EPA 319 Non Point Source Monitoring Program
• Glen Rider, Director, Bureau of Watershed Management, PA DEP
• Shawn M. Garvin, Administrator for EPA's Mid-Atlantic Region

Photo Courtesy of the Philadelphia Water Department.

Plenary
Monday, 8:30 am
Regency Ballroom

Chesapeake Bay Panel - "LID and the Chesapeake TMDL"

Moderator: Robert G. Traver, PhD, PE, WRE 
Professor and Director, VCASE and VUSP,
Conference Chair

The purpose of this panel is to discuss the role of LID in meeting the TMDL requirements for Nitrogen and Phosphorus reductions in the Chesapeake Bay. Each panelist will be asked to first make a brief overview of their thoughts on the issue. A moderated discussion will follow based upon submitted questions to the moderator. Please feel free to submit questions prior to the conference to the moderator.
(Image Source – USEPA Chesapeake Bay Program Office)

Panel
9:30 am
Regency Ballroom

LID-MARC

Moderator: Bill Hunt, PhD, PE 
Associate Professor, NC State University
Conference Co-Chair

Present and Future Directions with LID Research

Bill Hunt, NC State University
Allen Davis, University of Maryland
Robert Traver, Villanova University

Plenary, Cont'd
10:00 am
Regency Ballroom

Technical Sessions

	Track I	Track II	Track III	Track IV	Track V	Track VI	Track VII	Track VIII
	SCMs I	SCMs II	Assessing LID	Plan & Stnd	Cities & Streets	Models & CSOs	Outreach & Codes	319 & Chesapeake
Monday, September 26, 2011
10:50am	LID/MARC	Monitoring	LID Econ I	DesStand I	Sustain & LID I	Filter/Manuf	Outreach I	319 I
1:40pm	Bioret I	Harscape I	LID Econ II	DesStand II	Sustain & LID II	Models I	Outreach II	319 II
3:40pm	Bioret II	Hardscape II	Metrics	DesStand III	Streets I	Models II	Outreach II	319 III
Tuesday, September 27
8:30am *5*	NonStruct	Philly	VolRed I	Muni Pln I	DC 1	CSOs 1	W'shed Pln I	Ches Fed
10:55am	Bioret III	G. Roof I	VolRed II	Muni Pln II	Streets II	City Pln I	Outreach IV	Panel
1:45pm	Bioret IV	G. Roof II	Attenuat'n	City Pln II	Streets III	Models III	Regs & Code I	319 IV
3:45pm	Media	G. Roof III	Extreme LID	City Pln III	Streets IV	Models IV	Regs & Code II	319 V
Wednesday, September 28
8:30am *5*	O & M	W. Harvest I	Ecology	W'shed Pln II	DC II	CSOs II	Transprt I	Case Studies
10:55am		W. Harvest II	Campus	Climate Ch	Transprt II	CSOs III	Regs & Code III	319 VI

Wednesday, September 28, 2011

Field Tours - 1:00 - 4:30pm
Tour A - Villanova Urban Stormwater SCM Research and Demonstration Park
Tour B - Reinventing the Neighborhood (PWD)
Tour C - Urban LIDs (PWD)
Tour D - Stroud Preserve and Stroud Water Research Center 319 NPS National Monitoring Site

Tour descriptions can be found by clicking here.

Link Here  

Field Tours 
1:00pm - 4:30pm

Updated July 18, 2011

Infiltration Data in SWMM 5

Subject:  Infiltration Data in SWMM 5

Infiltration Data in SWMM 5 by dickinsonre Subject:  Infiltration Data in SWMM 5 If you are using Non linear Reservoir Modeling in SWMM 5 there are 1.   Five parameters for Horton Infiltration, 2.   Three parameters for Green-Ampt and 3.   Two parameters for CN infiltration, one parameter (conductivity) has been deprecated by the EPA in SWMM 5.   The Drying Time is used to regenerate the Infiltration Rate for continuous simulation.  Only two parameters are now used for CN infiltration:  The CN value itself and the drying time.    via Blogger http://www.swmm5.net/2013/08/infiltration-data-in-swmm-5.html

A feedback loop involves four distinct stages

A feedback loop involves four distinct stages. First comes the data: A behavior must be measured, captured, and stored. This is the evidence stage. Second, the information must be relayed to the individual, not in the raw-data form in which it was captured but in a context that makes it emotionally resonant. This is the relevance stage. But even compelling information is useless if we don’t know what to make of it, so we need a third stage: consequence. The information must illuminate one or more paths ahead. And finally, the fourth stage: action. There must be a clear moment when the individual can recalibrate a behavior, make a choice, and act. Then that action is measured, and the feedback loop can run once more, every action stimulating new behaviors that inch us closer to our goals, From Wired Magazine http://www.wired.com/magazine/2011/06/ff_feedbackloop/all/1

Status Report Bookmarks in SWMM 5.0.022

Subject:  Status Report Bookmarks in SWMM 5.0.022

RPT File BookMarks for SWMM5

SWMM 5 Slope Rules are Critical to Understand for Short Pipes

Subject:  SWMM 5 Slope Rules are Critical to Understand for Short Pipes

If you have a short pipe and an significant offset depth for the pipe at either the upstream or downstream end of the pipe then the difference between the arithmetic method of calculating the slope and the SWMM 5 method can be noticeably different. 

Three Inertial Term Options in SWMM 5 and InfoSWMM/H2OMAP SWMM

Subject:  Three Inertial Term Options in SWMM 5 and InfoSWMM/H2OMAP SWMM

Three Inertial Term Options in SWMM 5 and InfoSWMM/H2OMAP SWMM by dickinsonre Subject:  Three Inertial Term Options in SWMM 5 and InfoSWMM/H2OMAP SWMM The dynamic wave flow in SWMM5 and InfoSWMM is calculated from the following equation Q  =   (Qold – dq2 + dq3*sigma +  dq4*sigma ) / ( 1  + dq1 + dq5) Where, Qold               =         Last Time Step Flow in the Link dq1                 =         friction loss term dq2                 =         water suface slope + bed slope term dq3                 =         midpoint area non linear term dq4                 =         upstream and downstream area non linear term dq5                 =         Entrance, Other and Exit Loss Term sigma            =         function of the Froude number and a function of the Three Intertial Term Options Figure 1 shows how Sigma is set based on the user selection of the Three Intertial Terms.  Figure 2 shows how Sigma is calculated for the Dampen Option.  If you use Ignore then dq3 and dq4 are ignored all of the time, if you use Dampen then dq3 and dq4 are used for a Froude number less than 0.5 and then the terms gradually fade away until a Froude number of 1 is reached.   If you use Keep then the non linear terms are used all of the time no matter the value of the link Froude Number. There is one exception to this rule: If a closed link is full then the value of sigma is set to 0.0 no matter what is selected for the Intertial Term. Figure 1.  The value of Sigma for each of the Three Inertial Term Options in SWMM 5 and InfoSWMM/H2OMAP SWMM Figure 2.  At each iteration for each link during the simulation the link Froude Number is calculated and based on the Froude Number the value of Sigma is Set. via Blogger http://www.swmm5.net/2013/08/three-inertial-term-options-in-swmm-5.html

SWMM 5 QA and Application Manuals on the EPA Web Site

Subject:   SWMM 5 QA and Application Manuals on the EPA Web Site

SWMM 5 QA and Application Manuals on the EPA Web Site by dickinsonre Subject:   SWMM 5 QA and Application Manuals on the EPA Web Site The EPA Web Site has three manuals that you can download at http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/#Downloads 1.   SWMM Applications Manual 2.   SWMM 5 Quality Assurance Report 3.   SWMM 5 Users Manual via Blogger http://www.swmm5.net/2013/08/swmm-5-qa-and-application-manuals-on.html

How to Make a Small Model out of a Large Model in H2OMAP Sewer

Subject: How to Make a Small Model out of a Large Model in H2OMAP Sewer

How to Make a Small Model out of a Large Model in H2OMAP Sewer and InfoSewer by dickinsonre Subject:  How to Make a Small Model out of a Large Model in H2OMAP Sewer The process is easy if you use Domain and Facilities.   Step 1.  Use the Trace Upstream Network Command in Utilities to find the upstream network from your node of interest.  The upstream network is saved to a Domain. Step 2.  Use the Facility Manager to 1st deactivate the whole network and then 2nd to add the Domain to your Facility or the nodes and links that you will simulate You now have a smaller network to examine in Detail.  You may have to make a temporary Outfall node to run the model if there are no Outfalls in the model. via Blogger http://www.swmm5.net/2013/08/how-to-make-small-model-out-of-large.html

InfoSWMM Pump Operation Curve and Time Off Curve

Subject: InfoSWMM Pump Operation Curve and Time Off Curve

The InfoSWMM pump operation curve will show you over time the relationship between the head of the pump and the pump flow. The pump summary table will also tell you how often the pump head was higher than the High Head of the Curve and how often the pump head was lower than the Low Head of the Curve. If you replay the animation the purple square will move up and down the pump curve.

Dry Weather Flow in SWMM 5

Subject:   Dry Weather Flow in SWMM 5

Dry Weather Flow in InfoSWMM and H2OMap SWMM by dickinsonre Dry Weather Flow in InfoSWMM and H2OMap SWMM  Dry weather flow can be added to any node in H2OMAP SWMM.  The dry weather flow is computed as the average flow * the monthly pattern * the daily pattern * hourly pattern * the weekend daily pattern to give the Dry Weather Flow at any time step (Figure 1).   Since the four types of patterns (Figure 2) are all multiplied together then for Saturday and Sunday the hourly pattern and the weekend hourly pattern will both be used.   This will have the effect of overestimating the flow if the multipliers are greater than 1 and underestimating theflow if the multipliers are less than one.  You should enter the  Pattern X for the Weekend Hourly Pattern in H2OMAP SWMM  where  X  = Weekend Hourly Pattern / Hourly Pattern  So that when the pattern X is multiplied by the Hourly Pattern the program will use the intended Weekend Pattern.  Figure 1.  How Dry Weather Flow is Computed in H2OMAP SWMM Figure 2.  The Four Types of Time Patterns in H2OMAP SWMM, InfoSWMM and SWMM 5  via Blogger http://www.swmm5.net/2013/08/dry-weather-flow-in-infoswmm-and-h2omap_10.html

InfoSWMM Report Manager and Field Statistics

Subject:  InfoSWMM Report Manager and Field Statistics

InfoSWMM Report Manager and Field Statistics by dickinsonre Subject:  InfoSWMM Report Manager and Field Statistics  You can also use the mixed graph feature to plot the pump flow and the downstream flows on the same graph.  If you click on the Report command then you can also use aField Statistics command to see the Statistics for each Link and Pump.   The right mouse button for the Report also allows you to make a scatter plot and graph the flows in theforcemains versus the flows in the pumps.     via Blogger http://www.swmm5.net/2013/08/infoswmm-report-manager-and-field.html

How to use the Report Feature of the HGL Plot in InfoSWMM

Subject:   How to use the Report Feature of the HGL Plot in InfoSWMM

How to use the Report Feature of the HGL Plot in InfoSWMM by dickinsonre Subject:   How to use the Report Feature of the HGL Plot in InfoSWMM The report feature of the HGL plot helps you understand in more detail the pump flows, forcemain flows and node heads. Step 1. Load the Domain in the HGL Plot using Report Manager Step 2. Click on the Report Command to Show the HGL Data in Tabular Format Step 3.  Format the Results Table from the HGL Plot to see the data better. Step 4.  Now we have the heads, flows and velocities for the pumps, nodes and force main links in our Domain around the pump of interest at time steps of 2 seconds,  We can now see how the flows, heads and velocities change downstream from the pump. Step 5.  Force Mains, Nodes and Pumps in our Table Step 6.  The pump turns on and the flow moves downstream to the force mains – the heads in the nodes increase to balance the flow at each node.  As you can see there is a 1 to 2 GPM decrease due to attenuation as the flow from the pump moves into the force mains. Step 7.  The pump turns off and flows downstream decrease.  You can get negative flow if the downstream head is higher than the upstream head of the link. Step 8.  Use Advanced Labeling and the HGL Plot Stepping Interval to see all of the data in your Plot. via Blogger http://www.swmm5.net/2013/08/how-to-use-report-feature-of-hgl-plot.html

How to Use Domain Manager in InfoSWMM to Reduce the Output File Size

Subject:   How to Use Domain Manager in InfoSWMM to Reduce the Output File Size

How to Use Domain Manager in InfoSWMM to Reduce the Output File Size by dickinsonre Subject:   How to Use Domain Manager in InfoSWMM to Reduce the Output File Size If you want to save the output at a small report time step (2 seconds in this case) and you have a long simulation or large model then the reading of the graphicalo results may not be as speedy as you want.  You can save ONLY the DOMAIN to the output binary file however to make this smaller and faster to react. Step 1.  Define your Reporting Time Step and Your Routing Time Step.  In this case we are routing at 1 second but saving the DOMAIN results every 2 seconds. Step 2.  Clear your existing DOMAIN and Create a DOMAIN based on the area you are most interested in during the simulation. Step 3.  Use the Advanced Tab in Run Manager and select Domain as the Output Scope – this will save only the Domain to the output binary file. Step 4.  Run the simulation using Run Manager and then look at the output.  You are restricted to 8800 graph points but the number of points in the Report Table is unlimited. Step 5. You can use the Data Plot Option (right mouse click) to see a subset of the larger than 8800 data points.   via Blogger http://www.swmm5.net/2013/08/how-to-use-domain-manager-in-infoswmm.html