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Main Title Seattle Distribution System Corrosion Control Study. Volume I: Cedar River Water Pilot Plant Study.
Author Hoyt, Brian P. ; Herrera, Carlos E. ; Kirmeyer, Gregory J. ;
CORP Author Seattle Dept. of Water, WA.;Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1982
Report Number EPA-R-806686; EPA-600/2-82-026;
Stock Number PB82-231820
Additional Subjects Corrosion prevention ; Distribution systems ; Plumbing ; Water treatment ; Calcium oxides ; Water pipes ; Water supply ; Bicarbonates ; Protection ; Copper ; Steels ; Zinc ; Leaching ; Comparison ; Dosage ; Equipment ; Sodium carbonates ;
Library Call Number Additional Info Location Last
NTIS  PB82-231820 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 71p
Abstract A study was conducted in Seattle, Washington, to evaluate the use of lime and sodium bicarbonate in surface water supplies to control corrosion of plumbing materials. Continuous-flow pipe-coupon test loops were used to test the effectiveness of two water treatments - addition of lime only, and lime plus sodium bicarbonate. Three commonly used plumbing materials (copper, galvanized steel, and black steel) were tested for corrosion type and rate, penetration rate, and metal leaching. Corrosion rates were evaluated through weight loss, penetration rates were tested with pitting depth measurements, and corrosion types were determined by visual observation. Metal leaching tests were conducted using small-diameter pipes which exaggerate the test results and thus enable meaningful comparisons to be made in short-term tests. This method was developed by the Seattle Water Department for this study.
PUB Date Free Form 1982
Category Codes 13B; 50B; 71G
NTIS Prices PC A04/MF A01
Primary Description 600/14
Document Type NT
Cataloging Source NTIS/MT
Control Number 323818945
Origin NTIS
Type CAT