Water, Air, and Soil Pollution

, Volume 63, Issue 1–2, pp 201–210 | Cite as

Fecal indicator organisms below an on-site wastewater system with low pressure distribution

  • M. Marian Ijzerman
  • Charles Hagedorn
  • R. B. ReneauJr


Two antibiotic resistant Escherichia coli strains and two host-specific coliphage strains were evaluated in a shallow-placed low pressure distribution (LPD) system placed in a soil that was unsuitable for a conventional system because of shallow depth to a restrictive soil horizon. Four independent LPD subsystems were installed with loading rates of 4.5, 5.7, 9.0, (loading rates based on Virginia regulations), and 17.5 L d−1 m−2; narrow trench design). The evaluation was conducted under different moisture and temperature conditions (summer 1989, and the winter 1990) and focused on the fate and transport of the biological tracers below each subsystem. All subsystems performed equally well with respect to hydraulic performance and retention of the biological tracers. Results indicated that >99.9% of the bacterial and coliphage tracers were retained within the subsystems during the summer of 1989, and >99% were retained during the winter of 1990.


Escherichia Coli Wastewater Trench Pressure Distribution Shallow Depth 
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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • M. Marian Ijzerman
    • 1
  • Charles Hagedorn
    • 1
  • R. B. ReneauJr
    • 1
  1. 1.Dept. of Crop and Soil Environmental SciencesVPI&SUBlacksurgUSA

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