Keystone’s client proposed to convert the previously permitted and constructed bio-retention area/rain garden to a wet pond because deficiencies were observed during routine inspections. The rain garden was removed and a wet pond was constructed to utilize the same footprint while maintaining a functioning BMP. Keystone worked with the PADEP reviewer to gain approval with minimal review time. Keystone also provided construction oversight of the pond construction and recommendations to the company inspector and contractor for materials and construction methods in real-time. This led to a successful build and maintained function of the BMP. Keystone provided updated construction plans when design changes were warranted.
Keystone has a team of civil engineers, construction representatives, and environmental scientists who work...
Keystone’s environmental group regularly prepares permit documents for the submission of stream and wetland...
Keystone’s client proposed to install a construct a permanent 450 foot by 300 foot well pad in eastern...
Keystone’s client proposed to install a permanent 425 foot by 350 foot gravel pad, with an attached 100...
Keystone’s client was proposing to install a 6 MG freshwater impoundment, gravel access road, and gravel...
Keystone’s client proposed to install approximately 7,500 linear feet of 12” steel natural gas pipeline...