Record Display for the EPA National Library Catalog


Main Title Evaluation of trenchless sewer construction at South Bethany Beach, Delaware /
Author Beetschen, Lee J., ; Henry., William C.
CORP Author Sussex County Council, Georgetown, Del. ;Richardson (Edward H.) Associates, Inc., Newark, Del.;Municipal Environmental Research Lab., Cincinnati, Ohio.
Publisher United States Environmental Protection Agency, Municipal Environmental Research Laboratory, Office of Research and Development,
Year Published 1978
Report Number EPA 600/2-78-022; EPA-S-800690
Stock Number PB-278 776
OCLC Number 03793648
Subjects Sewerage--Delaware--South Bethany
Additional Subjects Sewers ; Design criteria ; Cost analysis ; Construction materials ; Labor estimates ; Sites ; Water pollution ; Ground water ; Delaware ; Trenchless sewers ; Water quality ; Bethany Beach(Delaware) ; Badger system
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJAD  EPA 600/2-78-022 Region 3 Library/Philadelphia, PA 06/02/2000
EJBD  EPA 600-2-78-022 Headquarters Library/Washington,DC 03/08/2016
EKBD  EPA-600/2-78-022 Research Triangle Park Library/RTP, NC 09/07/2001
ELBD ARCHIVE EPA 600-2-78-022 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 600-2-78-022 AWBERC Library/Cincinnati,OH 12/19/1997
ESAD  EPA 600-2-78-022 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-278 776 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xii, 81 pages : illustrations, figures, maps, tables ; 28 cm.
The purpose of this project was to determine whether the trenchless method of sewer construction had inherent cost, safety and other advantages over conventional methods of sewer construction. Under similar site conditions, the trenchless method was more cost effective than conventional means based on the actual unit bid price (50%), on complete sewer installation including manholes, wyes and laterals (16%) and on labor savings (23%). Eight inch polyvinyl chloride pipe with rubber gasketed joints was used in the conventional area, whereas eight inch polyvinyl chloride solvent welded pipe was used for the trenchless method. The trenchless method does not appear to be suited for urban areas where significant subsurface utilities exist, nor where rock or boulders exist in high density. However, the system is uniquely adapted to high water table areas, and its flexibility of application under varying soil conditions is wide ranging. The potential for infiltration is significantly less and, with proper field control, the trenchless method results in less deflection and horizontal and vertical misalignment. With open trenching reduced to a minimum, the method is safer than the conventional technique, particularly where deeper cuts are required. From an environmental standpoint, the trenchless method provides less disruption to traffic, and represents an improvement in sediment runoff control and noise reduction.
"March 1978." "This study was conducted in cooperation with Sussex County Council, Georgetown, Delaware." EPA Grant No. Contract Number: S-800690.