Definitions Used in Staff Guidance for Public Water Systems

Topics Under This Category:
Membrane Terms Defined
Defines about 20 technical terms related to membrane filtration in drinking water treatment plants. Formulas for calculating 11 factors used in pilot studies or membrane filtration reports.
 
PDW Definition Clarification: Public Health Significance
Clarification of whether water systems are regulated as public water systems. Information about support offered to systems not regulated by us.
 
PDW Definition Clarification: Single Service Food Concessions
Criteria to be used to determine whether a water system is a "single service food concession" and so is not to be regulated as a public water system. Procedure for our staff to follow in notifying systems that are determined to qualify.
 
PDW Definition Clarification: Transient Business POU Devices
Explanation of conditions where business establishments are allowed to use devices to treat water for non-health issues such as taste and odor and not be regulated as a public water supply.
 
Seasonal Water Systems
Water systems that do not operate as public water systems year-round may be exempt from submitting bacteriological samples and maintaining chlorine residual records part of the year. This document clarifies when this is so.
 
Last Modified 10/6/08
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