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EF/ ICR Logo Source Water (Untreated) Levels of Total Coliform for
Seattle Public Utilities


Water System Total Coliform Report
REMINDER: Data Purpose: The ICR data were collected as part of a national research project to support development of national drinking water standards. The should NOT be used to determine local water systems compliance with drinking water standards, nor should they be used to make personal judgements about health risks.


Source Water (Untreated) Levels of Total Coliform for Landsburg Treatment Plant

Water Type Month Total Coliform Level (Total Coliforms/100mL)
Surface Water JUL 1997 20
Surface Water AUG 1997 120
Surface Water SEP 1997 47
Surface Water OCT 1997 60
Surface Water NOV 1997 110
Surface Water DEC 1997 42
Surface Water JAN 1998 20
Surface Water FEB 1998 28
Surface Water MAR 1998 32
Surface Water APR 1998 40
Surface Water MAY 1998 5
Surface Water JUN 1998 7
Surface Water JUL 1998 35
Surface Water AUG 1998 11
Surface Water SEP 1998 12
Surface Water OCT 1998 30
Surface Water NOV 1998 40
Surface Water DEC 1998 28


Source Water (Untreated) Levels of Total Coliform for Tolt Treatment Plant

Water Type Month Total Coliform Level (Total Coliforms/100mL)
Surface Water JUL 1997 0
Surface Water AUG 1997 12
Surface Water SEP 1997 0
Surface Water OCT 1997 52
Surface Water NOV 1997 32
Surface Water DEC 1997 35
Surface Water JAN 1998 4
Surface Water FEB 1998 4
Surface Water MAR 1998 0
Surface Water APR 1998 0
Surface Water MAY 1998 0
Surface Water JUN 1998 0
Surface Water JUL 1998 0
Surface Water AUG 1998 4
Surface Water SEP 1998 6
Surface Water OCT 1998 2
Surface Water NOV 1998 0
Surface Water DEC 1998 20


How does this utility's source water compare to source waters nationally for coliform? Click on "view report" to see the state and national levels of total coliform.

Month State Report National Report
July 1997 view report view report
Aug 1997 view report view report
Sep 1997 view report view report
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Dec 1997 view report view report
Jan 1998 view report view report
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