Stormwater Symposium

Oral

397897 - Going Mobile: Tracking DC Water's Downspout Disconnection Program

Tuesday, June 5
2:00 PM - 3:30 PM
Location: Greenway AB
Co-Authors: Amanda Zander, Washington, DC – Delon Hampton

DC Water’s Long Term Control Plan for CSO control specifies that green infrastructure manage 1.2” of runoff from 498 impervious acres to meet DC Water’s Consent Decree requirements, in addition to tunnels and other grey infrastructure. While the majority of GI implementation will occur within the public right-of-way, the Drain the Rain program is focusing on private property through downspout disconnection and rain barrel incentives.

In 2017, Drain the Rain completed its pilot, which included promoting participation through incentives, determining a property’s eligibility, disconnecting downspouts and installing rain barrels, verifying proper installation, conducting inspections, and coordinating with other District agencies to maximize homeowner incentives. We evaluated approximately 4,100 homes and documented over 8,500 downspouts.

A robust data management framework was essential to the success of the program. We replaced a paper-based system with a custom mobile application using ArcGIS Collector and a suite of Python libraries to track, manage, and report on all aspects of the program. Over survey questions and answers were tracked for each home and individual downspouts. The application was essential in tracking the success of the pilot program and will continue to be used in 2018. Benefits of the application include real-time tracking from the field and office, reducing errors, reducing demand for GIS staff, cataloging photographs, integration with existing GIS, and ability to communicate with residents.

We will report on the lessons learned in development of our program, which will be beneficial to other communities and utilities looking to implement a straightforward paperless data collection system.

Steven Skripnik, PE

Environmental Engineer
LimnoTech

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