Your SlideShare is downloading. ×
Using GIS for Stormwater Billing and Impervious Surface Calculations Dana Bauer [email_address] Casey Thomas [email_addres...
Who is Azavea? <ul><li>25 people </li></ul><ul><ul><li>- software engineers </li></ul></ul><ul><ul><li>- spatial analysts ...
10% Research Program Pro Bono Program Time-to-Give-Back Program Employee-focused Culture  Projects with Social Value
Photo courtesy PWD
Photo courtesy PWD
Photo courtesy PWD
Maps courtesy Philadelphia Water Department/phillyH2O.org
 
EPA
EPA
Schuylkill River Regular Flow vs June 2006 Flood Photos courtesy PWD
<ul><li>$$$$$$ </li></ul>
CC image courtesy of Thomas Hawk on Flickr
CC image courtesy of JSmith Photo on Flickr
1996 Stormwater Reallocation Citizens Advisory Council Recommendations <ul><li>Implement a reallocation formula </li></ul>...
Some Bills Go Down Existing Charge = $ 4,702.82 New Charge  =  $ 120.24 Gross Area =  24,338 Imperv Area =  24,338
Some Bills Go Up Existing Charge =  $ 377.23 New Charge  = $ 2,496.42 Gross Area =  599,744 Imperv Area =  491,035
Implementing a new stormwater billing system <ul><li>Data & technology </li></ul><ul><li>Education </li></ul><ul><li>Trans...
<ul><li>www.phillystormwater.org </li></ul>
 
 
 
 
 
 
 
PhillyStormwater.org
 
Data, data, data
 
 
 
Geoprocessing
550,000+ parcels
PWD Enterprise Geodatabase PWD  Billing Database
Photo courtesy Philadelphia Tourism Board
Parcel Fact Sheet PDF
Appeals
Credit Opportunities Images courtesy PWD
 
<ul><li>www.phillystormwater.org </li></ul>
Many Thanks! © Photo used with permission from  Alphafish , via  Flickr.com
Using GIS for Stormwater Billing and Impervious Surface Calculations Dana Bauer [email_address] Casey Thomas [email_address]
Upcoming SlideShare
Loading in...5
×

Using GIS for Stormwater Billing and Impervious Surface Calculations

1,397

Published on

The Philadelphia Water Department is leveraging GIS to create a billing system based on the amount of impervious surface cover on commercial properties. Stormwater billing based on impervious surface area both distributes the cost of managing stormwater more equitably and creates incentives for property owners to implement best management practices for mitigating stormwater runoff on-site.

The bill calculation is performed using a series of GIS models assembled using ArcObjects, python scripts and a geoprocessing queuing system. The resulting datasets are then made available to Water Department customers via an ArcGIS Server application. In addition to searching and mapping, the application supports the billing appeals process and enables users to calculate the estimated financial benefits of implementing stormwater mitigation activities. This presentation will showcase the Philadelphia Water Department application and outline the benefits and challenges of using GIS technology for stormwater management and impervious surface area calculations in urban environments.

Published in: Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,397
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide
  • Photo courtesy PWD
  • Photo courtesy PWD
  • Photo courtesy PWD
  • Photos courtesy PWD
  • In 1996, the Stormwater Reallocation Citizens Advisory Council recommended that the city implement a reallocation formula based upon the gross size and the imperviousness of the property
  • In 1996, the Stormwater Reallocation Citizens Advisory Council recommended that the city implement a reallocation formula based upon the gross size and the imperviousness of the property
  • Photo courtesy Philadelphia Tourism Board
  • Image courtesy PWD
  • Images courtesy PWD
  • Transcript of "Using GIS for Stormwater Billing and Impervious Surface Calculations"

    1. 1. Using GIS for Stormwater Billing and Impervious Surface Calculations Dana Bauer [email_address] Casey Thomas [email_address] www.phillystormwater.org
    2. 2. Who is Azavea? <ul><li>25 people </li></ul><ul><ul><li>- software engineers </li></ul></ul><ul><ul><li>- spatial analysts </li></ul></ul><ul><ul><li>- project managers </li></ul></ul><ul><li>Spatial Analysis </li></ul><ul><li>Web & Mobile </li></ul><ul><li>High Performance Geoprocessing </li></ul><ul><li>User Experience </li></ul><ul><li>R&D </li></ul>
    3. 3. 10% Research Program Pro Bono Program Time-to-Give-Back Program Employee-focused Culture Projects with Social Value
    4. 4. Photo courtesy PWD
    5. 5. Photo courtesy PWD
    6. 6. Photo courtesy PWD
    7. 7. Maps courtesy Philadelphia Water Department/phillyH2O.org
    8. 9. EPA
    9. 10. EPA
    10. 11. Schuylkill River Regular Flow vs June 2006 Flood Photos courtesy PWD
    11. 12. <ul><li>$$$$$$ </li></ul>
    12. 13. CC image courtesy of Thomas Hawk on Flickr
    13. 14. CC image courtesy of JSmith Photo on Flickr
    14. 15. 1996 Stormwater Reallocation Citizens Advisory Council Recommendations <ul><li>Implement a reallocation formula </li></ul><ul><ul><li>Reallocate – not generate new revenue </li></ul></ul><ul><ul><li>Property derived </li></ul></ul><ul><ul><li>80% based on imperviousness (IA) </li></ul></ul><ul><ul><li>20% based on gross area (GA) </li></ul></ul><ul><li>Phase in over several years </li></ul>
    15. 16. Some Bills Go Down Existing Charge = $ 4,702.82 New Charge = $ 120.24 Gross Area = 24,338 Imperv Area = 24,338
    16. 17. Some Bills Go Up Existing Charge = $ 377.23 New Charge = $ 2,496.42 Gross Area = 599,744 Imperv Area = 491,035
    17. 18. Implementing a new stormwater billing system <ul><li>Data & technology </li></ul><ul><li>Education </li></ul><ul><li>Transparency </li></ul><ul><li>Appeals & credits </li></ul>
    18. 19. <ul><li>www.phillystormwater.org </li></ul>
    19. 27. PhillyStormwater.org
    20. 29. Data, data, data
    21. 33. Geoprocessing
    22. 34. 550,000+ parcels
    23. 35. PWD Enterprise Geodatabase PWD Billing Database
    24. 36. Photo courtesy Philadelphia Tourism Board
    25. 37. Parcel Fact Sheet PDF
    26. 38. Appeals
    27. 39. Credit Opportunities Images courtesy PWD
    28. 41. <ul><li>www.phillystormwater.org </li></ul>
    29. 42. Many Thanks! © Photo used with permission from Alphafish , via Flickr.com
    30. 43. Using GIS for Stormwater Billing and Impervious Surface Calculations Dana Bauer [email_address] Casey Thomas [email_address]

    ×