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ASTM Selected Technical Papers
Site Characterization and Design of On-Site Septic Systems
By
MS Bedinger
MS Bedinger
Editor
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JS Fleming
JS Fleming
Editor
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AI Johnson
AI Johnson
Editor
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ISBN-10:
0-8031-2420-1
ISBN:
978-0-8031-2420-2
No. of Pages:
320
Publisher:
ASTM International
Publication date:
1997

Problems with clogging in pressure distribution systems have been reported (Shoemaker et al. 1987, Hoover et al. 1991) and can result in system failure, increased maintenance, and limited use of appurtenances such as timers. Therefore, Maryland sought a pressure distribution network design that would allow operation without clogging and reduce the need for maintenance.

For this study we closely monitored sixty-one systems designed and installed according to the Maryland procedure. We attempted to measure pressure head and discharge rates at each system. We then developed a methodology for estimating degree of clogging. We found that while most systems had some degree of clogging, the clogging had not yet required the need for increased maintenance. However, some operational problems found indicate a need for increased maintenance and inspection and a need to revise our design and construction procedure.

1.
Amoozegar
,
A.
,
West
,
E.W.
,
Martin
,
K.C.
and
Weymann
,
D.F.
,
1994
, “
Performance Evaluation of Pressurized Subsurface Wastewater Disposal Systems
,” In Proc. Seventh Intl. Symp. on Individual and Small Community Sewage Systems,
Atlanta, GA
, 11–13 Dec. 1994,
Am. Soc. Agric. Eng. Pub.
18-94, St. Joseph, MI
.
2.
Carlile
,
B.L.
,
Rubin
,
A.R.
and
Osborne
,
D.G.
,
1981
, “
Status of Innovative and Alternative Wastewater Treatment Systems in North Carolina
” Home Sewage Treatment — A Compilation of Papers,
Am. Soc. Agric. Eng. Pub
.
11-81, St. Joseph, MI
, ASBN 0-916150-38-9.
3.
Cogger
,
C.G.
,
Carlile
B.L.
,
Osborne
D.J.
, and
Holland
E.
,
1982
, “
Design and Installation of Low-Pressure Pipe Waste Treatment Systems
,” UNC Sea Grant College Publication UNC-SG-82-03, Sea Grant,
North Carolina State University
,
Raleigh North Carolina
,
05
1982
.
4.
Hoover
,
M.T.
,
Amoozegar
A.
, and
Weymann
A.
,
1991
, “
Performance Assessment of Sand Filter, Low Pressure Pipe Systems in Slowly Permeable Soils of a Triassic Basin
,” p. 325–337, In Proc. Sixth Natl. Symp. on Individual and Small Community Sewage Systems,
Chicago, IL
, 16–17 Dec. 1991,
Am. Soc. Agric. Eng. Pub.
10-91, St. Joseph, MI
.
5.
Maryland Department Of the Environment
,
1985
, “
Code of Maryland Regulations
,” Title 26, Subtitle 04, Regulation of Water Supply, Sewage Disposal, and Solid Waste.
6.
Otis
,
R.J.
,
1981
, “
Design of Pressure Distribution Networks for Septic Tank — Soil Absorption Systems
,”
SSWMP College of Agricultural and Life Sciences, University of Wisconsin
,
Madison
,
01
1981
.
7.
Shoemaker
,
D.K.
,
Rutledge
E.M.
,
House
J.W.
,
Griffis
C.L.
, and
Mitchell
D.T.
,
1987
, “
A Mathematical Model to Predict Orifice Plugging in a Low-Pressure Distribution System
,” p. 215–223, In Proc. Fifth Natl. Symp. on Individual and Small Community Sewage Systems,
Chicago, IL
, 14–15 Dec. 1987,
Am. Soc. Agric. Eng. Pub.
10-87, St. Joseph, MI
.
8.
USEPA
,
1980
, “
Onsite Wastewater Treatment and Disposal Systems
,” Design Manual, EPA 625/1-80-0102,
United States Environmental Protection Agency
,
Cincinnati, OH
,
1980
.
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