Cost-Effectiveness of On-Site and Community Sewerage Alternatives

by Jerrold J. Troyan, (A.M.ASCE), Project Mgr.; Brown and Caldwell, Eugene, Ore.,
Dan P. Norris, (M.ASCE), Vice-Pres.; Brown and Caldwell, Eugene, Ore.,


Serial Information: Civil Engineering—ASCE, 1977, Vol. 47, Issue 12, Pg. 84-89


Document Type: Feature article

Abstract:

Some research and development work has taken place, over many years, on individual on-site treatment and disposal systems as well as non-conventional systems. Most recent work, however, has only begun to become familiar to consultants and public officials in the wastewater management field. This article addresses problem conditions which must be considered in selecting sewerage alternatives, advantages, disadvatages, and limitations of on-site and community alternatives; and a procedure for screening and analyzing costs of alternatives for individual homes. These alternatives are three types of on-site disposal: (1)Septic tank�� mound system; (2)septic tank�� soil absorption system; (3)septic tank�� sand filter system. Community collection systems include: conventional gravity sewers; small-diameter gravity sewers; pressure sewers; and vacuum sewers.

Subject Headings: Sewers | Wastewater management | Sand filters | Gravity sewers | Benefit cost ratios | Waste management | Sandy soils

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