GREEN CITY, CLEAN WATERS
Paula Conolly, AICP
AICP Symposium October 28, 2015
Integrated and Long‐Term Planning
CSOPermit
Requirements
Stormwater ManagementMS4 Permit
Stream and Habitat
RestorationTMDLs
SourcewaterProtection
Stakeholder Goals
Future Regulatory
Requirements
Integrated Watershed Management Plan
Southeast Philadelphia (10th & Moyamensing), photo by Andrew Dobshinsky
Green City, Clean WatersCombined Sewer Overflow (CSO) Long Term Control Plan
Time 25 years
DECENTRALIZEDINCREMENTALADAPTABLEFLEXIBLE
Maximizing Benefits
$1.67 billion
$345 million
Green Stormwater Infrastructure
Adaptive Management
Wet Weather Treatment Plant Upgrades
Green City, Clean Waters
$420 million
Metric UnitsCumulative amount
as of Year 25 (2036)
Wastewater Treatment Plant Upgrades Percent complete 100%
Miles of Interceptor Lined Miles 14.5
Overflow Reduction Volume
Million Gallons per year 7,960
Equivalent Mass Capture TSS / BOD / Fecal
ColiformPercent 85%
Total Greened Acres Greened Acres 9,564
Water Quality Based Effluent Limits
8
Opportunities & Barriers
Year Greened Acres Square Miles% Imperviouscover removed
5 750 1 3%10 2,100 3 8%15 3,800 6 14%20 6,400 10 23%
25 9,600 15 34%
25‐Year Implementation of Green City, Clean WatersGreen Stormwater Goals
Private Regulations
Paul Rider
Parcel Based Billing for Stormwater
http://www.phila.gov/water/swmap
Grants
Streets
Parks
Vacant Lots
Schools
Campuses
Investments throughout the Lifecycle
Planning and Project Id
Design
Construction
Maintenance
Monitoring
Inspections & Enforcement
Green City, Clean WatersProgram Tracking System, “The Hub”
Data Tracking &Management
24
Maintenance Management System
CAPIT Replacement System
GIS Data Update – PWDAsset Tracking
Stormwater Plan Review Database(including Credits & Billing input)
System Inputs
System Connections
Tracking Hubs
Public Engagement
25
http://www.phillywatersheds.org/biggreenmap
Public Investment Progress ‐ Big Green Map
27
What’s Next: Faster, Greener, Cheaper