Research Article
Apr 1974
Some Historical Statistics Related to Future Standards
Publication: Journal of the Environmental Engineering Division
Volume 100, Issue 2
Abstract
Historical records have been examined to see how successful engineers designing small projects in Wisconsin have been in forecasting population, and to see how nearly the actual life of their projects equaled the intended design life. The data available indicate that, hazardous as population forecasting is, the greatest problem for the designer (measured in terms of having the plant decreed inadequate before reaching its intended design life) is changes in environmental standards. That this appears to have been true in the past, a rather stable era, creates a good deal of uneasiness for the designer contemplating the rapid changes in standards that will occur in the next 5 to 10 years. The question to be examined is how probabilistic language in standards, stated or implied, reflects on the designer's problem. Data from treatment plants have been analyzed to determine the typical frequency distributions of effluent quality. The shape of this statistical distribution bears heavily on how difficult a stated standard is to meet.
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Information
Published In
Journal of the Environmental Engineering Division
Volume 100 • Issue 2 • April 1974
Pages: 423 - 437
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Apr 1974
Published online: Feb 11, 2021
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Authors
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Paul M. Berthouex, M.ASCE
Assoc. Prof. of Civ. and Envir. Engrg.; Univ. of Wisconsin, Madison, WI, USA
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.