The Rickenbacker Air National Guard Base (RANGB) contracted PRIME to perform a water and sewer system capacity study for the purposes of analyzing the existing systems and ascertain their capacity to accept increased water consumption and sanitary flows during RANGB’s proposed expansion over the next 20 years. In the process of planning for future growth and expansion, RANGB found it necessary to understand the effect that such growth would have on the existing 60-year-old water and sanitary sewer systems.
PRIME analyzed existing populations for water capacity and demand. This information was compared to the population growth forecast to determine if the existing systems could accommodate the growth. PRIME determined that, with some system improvements and modifications, RANGB’s existing water distribution and sanitary sewer systems should be adequate to handle the proposed new construction and future population growth.
PRIME recommended repairs and improvements to the water and sanitary sewer systems, including the replacement of approximately 2,600 feet of asbestos cement water pipe and two segments of 15-inch sanitary sewer pipe, the rehabilitation of the remaining sanitary sewer pipes with cured-in-place pipe lining, and the investigation of methods to eliminate high iron concentrations in the water distribution system.
PRIME also proposed a Construction Phasing Plan that recommended replacing the TRANSITE water distribution system piping with ductile iron pipe, replacing two 15-inch sanitary sewer system pipe segments that did not meet Columbus standards, rehabilitating 2,260 linear feet of 15-inch and 1,430 linear feet of 8-inch sanitary sewer with cured-in-place pipe lining, and installing sanitary laterals and water service taps as part of the site development phase for each new facility/building.