Water, Water, Everywhere (Available in Geoenvironmental special issue only)

by Stephen T. Jansen, Vice Pres.; Peer Envir. and Engrg. Resour., Minneapolis, MN,
Bruce D. Wagener, P.E., (A.M.ASCE), Proj. Engr.; CNA Consulting Engrs., Minneapolis, MN,
Gordon J. Girtz, Inst. Envir. Affairs Program Dir.; Univ. of Minnsota, Minneapolis, MN,


Serial Information: Civil Engineering—ASCE, 1999, Vol. 69, Issue 6, Pg. 14A-16A


Document Type: Feature article

Abstract:

The discovery of extensive contamination just prior to construction of an underground library storage facility prompted engineers from the Minneapolis-based firms CNA Consulting Engineers and Peer Environmental and Engineering Resources to modify several aspects of the underground design. Because petroleum and PAH compounds present in the groundwater could chemically react with the polyvinyl chloride (PVC) materials and solvent-welded connections that were originally specified for the drainage systems, the primary connections of he systems were changed to high-density polyethylene (HDPE). The current design also includes several water control and hydraulic barrier features that will reduce the volume of contaminated groundwater entering the facility.

Subject Headings: Water pollution | Consulting services | Water storage | Underground storage | Underground construction | Drainage systems | Water resources

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