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Chrysotile Asbestos in California Surface Waters: From Upstream Rivers Through Water Treatment

Bales, Roger C. and Newkirk, Dale D. and Hayward, Steven B. (1984) Chrysotile Asbestos in California Surface Waters: From Upstream Rivers Through Water Treatment. Journal - American Water Works Association, 76 (5). pp. 66-74. ISSN 0003-150X. https://resolver.caltech.edu/CaltechAUTHORS:20140915-152204785

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Abstract

This article describes the input, transport, and removal of chrysotile asbestos fibers delivered to Southern California through the State Water Project. Concentrations of chrysotile fibers in surface waters in California are estimated from a mass-balance model that takes into consideration natural weathering of serpentine rock in the Sierra Nevada and coastal mountains and removal of fibers by coagulation in reservoirs. As predicted, fiber removals of from 90 to 99.8 percent were observed in reservoirs with detention times of from 0.5 to 3 years. Removal of submicron-sized fibers in water treatment plants also ranged from 90 to 99.8 percent, depending on the degree of coagulation prior to filtration.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://www.awwa.org/publications/journal-awwa/abstract/articleid/11093.aspxPublisherArticle
Additional Information:© 1984 American Water Works Association. The work by R. Bales was supported in part by a grant from the Andrew W. Mellon Foundation to Caltech's Environmental Quality Laboratory and in part by a grant from The Metropolitan Water District of Southern California. The American Water Works Association Research Foundation provided a portion of the Metropolitan grant. Suggestions from J. Morgan. N. Brooks, and V. Vanoni during preparation of this article are gratefully acknowledged. K. Leung and G. Zeininger compiled much of the data for inputs by weathering. Product Number: JAW_0010917.
Group:Environmental Quality Laboratory
Funders:
Funding AgencyGrant Number
Andrew W. Mellon FoundationUNSPECIFIED
Metropolitan Water District of Southern CaliforniaUNSPECIFIED
American Water Works Association Research FoundationUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Environmental Quality LaboratoryA-172
Issue or Number:5
Record Number:CaltechAUTHORS:20140915-152204785
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140915-152204785
Official Citation:Chrysotile Asbestos in California Surface Waters: From Upstream Rivers Through Water Treatment Bales, Roger C.; Newkirk, Dale D.; Hayward, Steven B. Journal - American Water Works Association Volume / Number: 76, Number 5 Page(s): 66-74
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49727
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:16 Sep 2014 17:56
Last Modified:03 Oct 2019 07:16

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