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EF/ ICR Logo Source Water (Untreated) Levels of E. coli for
Cobb County-Marietta Water Authority


Water System E. coli 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 E. coli for Wyckoff Water Treatment Plant

Water Type Month E. coli Level (E.coli/100mL)
Surface Water JUL 1997 NO DATA
Surface Water AUG 1997 0
Surface Water SEP 1997 10
Surface Water OCT 1997 42
Surface Water NOV 1997 10
Surface Water DEC 1997 11
Surface Water JAN 1998 44
Surface Water FEB 1998 0
Surface Water MAR 1998 5
Surface Water APR 1998 6
Surface Water MAY 1998 0
Surface Water JUN 1998 0
Surface Water JUL 1998 0
Surface Water AUG 1998 0
Surface Water SEP 1998 0
Surface Water OCT 1998 2
Surface Water NOV 1998 10
Surface Water DEC 1998 5


Source Water (Untreated) Levels of E. coli fo r Quarles Water Treatment Plant

Water Type Month E. coli Level (E.coli/100mL)
Surface Water JUL 1997 NO DATA
Surface Water AUG 1997 200
Surface Water SEP 1997 100
Surface Water OCT 1997 478
Surface Water NOV 1997 200
Surface Water DEC 1997 75
Surface Water JAN 1998 900
Surface Water FEB 1998 31
Surface Water MAR 1998 31
Surface Water APR 1998 310
Surface Water MAY 1998 1000
Surface Water JUN 1998 473
Surface Water JUL 1998 384
Surface Water AUG 1998 1000
Surface Water SEP 1998 1500
Surface Water OCT 1998 592
Surface Water NOV 1998 119
Surface Water DEC 1998 100


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

Month State Report National Report
July 1997 view report view report
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