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One-step Sewer Leak Detection & Location
Standard Practice for Locating Leaks in Sewer Pipes Using Electro-Scan--the Variation of Electric Current Flow Through the Pipe Wall
To order the standard visit: www.astm.org
Including:
*
Contract responsibilities
*
Principle of operation
*
Apparatus specification
*
Specification of information and data to be reported by the
electro-scan
operator.
- sewer preparation
-
sliding pipe plug operation
-
integration with regular sewer pipe jet cleaning
-
confirmation of proper apparatus operation
* Description of required field operator training and experience
Introduction
to Standard of Practice:
Infiltration
of groundwater into a sewer through defects in the pipe can
considerably
increase the operation and capital costs of a sewer system.
Exfiltration of
sewage out of a sewer pipe may cause degradation of aquifers and
shoreline
waters.
Accurate location, measurement, and characterization of all potential
pipe leak defects are essential inputs for cost-effective design of
pipe
renewal or remediation. Commonly used sewer leak assessment methods
either do
not detect a significant number of large potential pipe leak defects,
particularly
those caused by faulty joints or service connections, or are too slow
or costly
or both for widespread application.
Referenced
Documents:
Report:
Water Environmental Research Foundation, An Examination of Innovative
Methods
Used in the Inspection of Wastewater Systems, December 2004