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Green City, Clean Waters is Philadelphia's 25-year plan to protect and enhance our watersheds by managing stormwater with innovative green infrastructure. The Philadelphia Water Department developed Green City, Clean Waters to provide a clear pathway to a sustainable future while strengthening the utility, broadening its mission, and complying with environmental laws and regulations. |
Images above are design concepts only
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2011-2012 Green City, Clean Waters Year in Review There has been lots of excitement and major successes for the City of Philadelphia since the Green City, Clean Waters plan was signed back in June, 2011: new green stormwater infrastructure has been constructed; numerous designs are underway; opportunities to engage citizens are growing, among a variety of other initiatives. To commemorate our achievements, the Philadelphia Water Department is proud to share with you a photojournalistic glimpse into the highlights of the past year - Related Blog: Giving Thanks |
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Key Concepts To learn more about Green City, Clean Waters, we recommend you start with the Summary Report. To help you understand the terminology and issues behind Green City, Clean Waters (technically known as the CSO Long Term Control Plan Update), here are some key concepts that inform our planning and solutions:
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Stormwater Management Tools
| How do we keep stormwater from causing sewer overflows into our rivers and streams? PWD's green stormwater infrastructure tools evaporate some of the runoff into the ground, evaporate a portion of it into the air, and in some cases slowly release the water into the sewer system. |  Stormwater Planter |
 Porous Pavement |
 Stormwater Wetland |
| Videos | The Big Green Map |
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Green City, Clean Waters Green Homes |
Columbus Square Park Greener, Healthier Playgrounds |
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| more videos >> | view our green infrastructure projects >> |
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CSO Long Term Control Plan Update Documents
EPA Administrative Order for Compliance on Consent
EPA Partnership Agreement
On April 10, 2012, the City of Philadelphia and the U.S. Environmental Protection Agency signed a partnership agreement to recognize the Green City, Clean Waters plan and its approach to stormwater management.
PA DEP Consent Order and Agreement
Consent Order and Agreement executed with the Pennsylvania Department of Environmental Protection on June 1, 2011 for the implementation of the Philadelphia Water Department's Combined Sewer Overflow Long Term Control Plan Update (Green City, Clean Waters Plan)Complete Document (5.5 MB)
Consent Order and Agreement Required Deliverables
The following documents were submitted to the Pennsylvania Department of Environmental Protection as required by Appendix G of the Consent Order and Agreement.The Implementation and Adaptive Management Plan (IAMP) was submitted to the PADEP by December 1, 2011. This plan provided the implementation framework for the Green City, Clean Waters program proposed in the LTCPU and its supplements. This plan described the programmatic elements that will be developed during the first five years of COA implementation. Implementation and Adaptive Management Plan (1.1 MB) Appendices (5.7 MB) PWD Response to PA DEP Comments on the Implementation and Adaptive Management Plan The Green Stormwater Infrastructure (GSI) Maintenance Manual Development Process Plan was submitted to the PADEP by June 1, 2012. This plan describes the current green stormwater infrastructure maintenance program and provides an overview of the process to develop the GSI Maintenance Manual by June 1, 2014. Green Infrastructure Maintenance Manual Development Process Plan (1 MB) The Final Draft of the Green City, Clean Waters Comprehensive Monitoring Plan was submitted to the PADEP and USEPA by the December 1, 2012 deadline. It is currently under review for approval. It is our initial plan for performing monitoring of natural and engineered systems associated with our Green City, Clean Waters program and addresses the monitoring and assessment of surface waters, groundwater, rainfall, CSO discharges, sewer flows, and green infrastructure performance. Comprehensive Monitoring Plan (6.9 MB) Appendices (7.1 MB)
Summary Report
Summary Report - amended June 1, 2011
High Resolution (95 MB)
Long Term Control Plan Update
Complete Document (30 MB) Section 1 Introduction and Background Section 2 Public Participation Section 3 Characterization of Current Conditions Section 4 Problem Analysis and Goal Setting Section 5 Overview of the LTCPU Section 6 Land-Based Control Measures (Source Controls) * Section 7 Water-Based Control Measures Section 8 Infrastructure-Based Control Measures * Section 9 Development and Comparison of Alternatives * Section 10 Recommend Plan Elements Section 11 Financial Capability Section 12 Post-Construction Monitoring
Supplemental Documentation
All Volumes (118 MB) Volume 1 Public Participation Supplemental Documentation Volume 2 Triple Bottom Line Analysis Volume 3 Basis of Cost Opinions Volume 4 Hydrologic and Hydraulic Modeling Volume 5 Precipitation Analysis Volume 6 Stress Testing of the Northeast WPCP Volume 7 Stress Testing of the Southeast WPCP Volume 8 Stress Testing of the Southwest WPCP Volume 9 Analysis of Wet Weather Treatment Alternatives for Northeast WPCP Volume 10 Analysis of Wet Weather Treatment Alternatives for Southeast WPCP Volume 11 Analysis of Wet Weather Treatment Alternatives for Southwest WPCP Volume 12 TTF Watershed Comprehensive Characterization Report Volume 13 TTF Integrated Watershed Management Plan Volume 14 Darby-Cobbs Watershed Comprehensive Characterization Report Volume 15 Cobbs Creek Integrated Watershed Management Plan Volume 16 Cobbs Creek Vision Document Volume 17 Tookany/Tacony-Frankford Vision Document |
Partnerships
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The U.S. Environmental Protection Agency and the City of Philadelphia have partnered to advance green infrastructure for urban wet weather pollution control. This partnership assures EPA’s support of Philadelphia’s adoption of green infrastructure to improve both water quality and the sustainability of its neighborhoods. 
The U.S.-Brazil