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DEMYSTIFYING BASE INFILTRATION IN SEWERS
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Description: Book cover
DEMYSTIFYING BASE INFILTRATION IN SEWERS

DEMYSTIFYING BASE INFILTRATION IN SEWERS

DEMYSTIFYING BASE INFILTRATION IN SEWERS

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Description: Book cover
DEMYSTIFYING BASE INFILTRATION IN SEWERS
Abstract
This paper addresses three empirical methods used to determine degree of Base Infiltration (BI) in 45 isolated sewer basins throughout the Orange County Sanitation District (OCSD) collection system. These include a common estimation method called night-time "Wastewater Production", a secondmethod called "Minimum Flow Factor", and a third empirical method employing the "Stevens/ Schutzbach" equation. These empirical methods were tested against a chemical parameter verification method that involves regressing hourly concentrations of several common wastewater chemical analysis parameters (Chemical Oxygen Demand — COD, etc.) with hourly sewage flow rates. The chemical parameter method results were also compared to BI estimates based on potable water use records.Results to date indicate that the "Minimum Flow Factor" method and a slightly modified version of the "Wastewater Production" method provide more accurate estimates of BI in basins yielding flowscomprised of more than 25% BI. Alternatively, the "Stevens/ Schutzbach" empirical method providesgood estimations of BI in basins yielding BI flows less than 25% and is also far more stable in such basins (i.e., less sensitive to errors in minimum night-time flow measurements).
This paper addresses three empirical methods used to determine degree of Base Infiltration (BI) in 45 isolated sewer basins throughout the Orange County Sanitation District (OCSD) collection system. These include a common estimation method called night-time "Wastewater Production", a secondmethod called "Minimum Flow Factor", and a third empirical method employing the "Stevens/ Schutzbach"...
Author(s)
Paul S. MitchellPatrick L. StevensAdam Nazaroff
SourceProceedings of the Water Environment Federation
SubjectSession 5: Tunnels and Treatment – Unique Approaches to Store and Treat CSOs
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2006
ISSN1938-6478
SICI1938-6478(20060101)2006:4L.291;1-
DOI10.2175/193864706783796349
Volume / Issue2006 / 4
Content sourceCollection Systems Conference
First / last page(s)291 - 308
Copyright2006
Word count180

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Description: Book cover
DEMYSTIFYING BASE INFILTRATION IN SEWERS
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Description: Book cover
DEMYSTIFYING BASE INFILTRATION IN SEWERS
Abstract
This paper addresses three empirical methods used to determine degree of Base Infiltration (BI) in 45 isolated sewer basins throughout the Orange County Sanitation District (OCSD) collection system. These include a common estimation method called night-time "Wastewater Production", a secondmethod called "Minimum Flow Factor", and a third empirical method employing the "Stevens/ Schutzbach" equation. These empirical methods were tested against a chemical parameter verification method that involves regressing hourly concentrations of several common wastewater chemical analysis parameters (Chemical Oxygen Demand — COD, etc.) with hourly sewage flow rates. The chemical parameter method results were also compared to BI estimates based on potable water use records.Results to date indicate that the "Minimum Flow Factor" method and a slightly modified version of the "Wastewater Production" method provide more accurate estimates of BI in basins yielding flowscomprised of more than 25% BI. Alternatively, the "Stevens/ Schutzbach" empirical method providesgood estimations of BI in basins yielding BI flows less than 25% and is also far more stable in such basins (i.e., less sensitive to errors in minimum night-time flow measurements).
This paper addresses three empirical methods used to determine degree of Base Infiltration (BI) in 45 isolated sewer basins throughout the Orange County Sanitation District (OCSD) collection system. These include a common estimation method called night-time "Wastewater Production", a secondmethod called "Minimum Flow Factor", and a third empirical method employing the "Stevens/ Schutzbach"...
Author(s)
Paul S. MitchellPatrick L. StevensAdam Nazaroff
SourceProceedings of the Water Environment Federation
SubjectSession 5: Tunnels and Treatment – Unique Approaches to Store and Treat CSOs
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2006
ISSN1938-6478
SICI1938-6478(20060101)2006:4L.291;1-
DOI10.2175/193864706783796349
Volume / Issue2006 / 4
Content sourceCollection Systems Conference
First / last page(s)291 - 308
Copyright2006
Word count180

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Paul S. Mitchell# Patrick L. Stevens# Adam Nazaroff. DEMYSTIFYING BASE INFILTRATION IN SEWERS. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Web. 1 Oct. 2025. <https://www.accesswater.org?id=-293231CITANCHOR>.
Paul S. Mitchell# Patrick L. Stevens# Adam Nazaroff. DEMYSTIFYING BASE INFILTRATION IN SEWERS. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Accessed October 1, 2025. https://www.accesswater.org/?id=-293231CITANCHOR.
Paul S. Mitchell# Patrick L. Stevens# Adam Nazaroff
DEMYSTIFYING BASE INFILTRATION IN SEWERS
Access Water
Water Environment Federation
December 22, 2018
October 1, 2025
https://www.accesswater.org/?id=-293231CITANCHOR