Guernsey to Londonderry

Guernsey and Harrison Counties, Ohio
Conducted a survey for wetlands and other “Waters of the United States” on MarkWest’s Guernsey to Londonderry Route to support the construction of a 20.5 mile pipeline. 22 freshwater wetland features, 25 perennial streams, 14 intermittent streams and 15 ephemeral streams were delineated, GPS-located and mapped. Unavoidable impacts to wetlands and streams were permitted through the US Army Corps of Engineers Nationwide Permit Program.
GPD Group / MarkWest