INDE_391_152470_172401-2014-Utility__PCSWM___Erosion_Control_Plan_Overall_Plan_0004.pdf

This is an architectural plan document for utility, stormwater, and erosion control at Independence National Historical Park. The plan illustrates the site layout and design for post-construction stormwater management, operation, and maintenance systems, along with erosion and sediment control measures required for the project.

The stormwater management system includes inlet and storm sewer design with specifications for inspection and maintenance activities to be performed by the project owner. Trash boxes must be installed on all stormwater inlets to minimize debris entry, with maintenance protocols requiring removal and repair of sump boxes and trash boxes throughout construction units. Vegetative cover and grading requirements are specified to prevent erosion of stormwater management facilities. The erosion control component outlines sediment and erosion control measures necessary for the project, with detailed protocols for site cleanup, debris removal, material stockpiling, and dust control. Environmental assessment requirements include review of property ownership, environmental liens, hazardous materials, and Phase I/II environmental site assessments. The plan also addresses clearing and grubbing, grading, excavations, and earthwork activities, along with requirements for testing clean fill materials. The document is sheet 17 of 34, dated 7/21/2014, with a graphic scale provided for reference.