Expanding Raven Rock State Park in Lillington, North Carolina, included building nine campsites, each with five or six RV hookups, and a bathhouse with showers and restrooms.
Park officials hired Allen Grading Co. with Taylor Carr, the general contractor’s project manager; Robert Graham, P.E., principal engineer at George Finch/Boney and Associates; and Stacy Creech, proprietor of Creech’s Plumbing in Wilson, North Carolina.
To stay within funding limits, park officials requested a conventional system with stone-and-pipe drainfields. “We avoided pretreatment and nitrification due to the level of maintenance, operator training and licensing required,” Grahams says.
The size and complexity of the project intimidated local
