The green infrastructure maintenance manual for the City of Philadelphia.
(2014) Consent Order & Agreement Deliverable VIII City of Philadelphia Combined Sewer Overflow Long Term Control Plan Update Submitted to The Commonwealth of Pennsylvania Department of Environmental Protection by The Philadelphia Water Department.
Detailed maintenance procedures for green infrastructure features used in Philadelphia.
An effective and rigorous maintenance program is crucial for the long-term sustainability and function of green stormwater infrastructure (GSI) systems. Because GSI systems incorporate vegetation, they can change over time as plant communities grow and establish. In urban environments in particular, GSI may be subject to temperature extremes, pollution, heavy sediment and trash accumulation, and an aggressive weed community—all of which can create a challenging environment for plants. Furthermore, sediment and trash, if allowed to accumulate, can create unsightly conditions. Proper maintenance can ensure that GSI systems remain healthy, attractive, and safe. The Water Department understands that maintenance responsibilities may be undertaken or assigned to other entities, therefore, the Green Infrastructure Maintenance Manual is designed to be used by a broader audience.