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EF/ ICR Logo Source Water (Untreated) Levels of E. coli for
PA-American Water Co-Pittsburgh Area


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 Hays Mine Station

Water Type Month E. coli Level (E.coli/100mL)
Surface Water JUL 1997 33
Surface Water AUG 1997 20
Surface Water SEP 1997 100
Surface Water OCT 1997 88
Surface Water NOV 1997 4800
Surface Water DEC 1997 3000
Surface Water JAN 1998 600
Surface Water FEB 1998 5000
Surface Water MAR 1998 1700
Surface Water APR 1998 1000
Surface Water MAY 1998 600
Surface Water JUN 1998 2000
Surface Water JUL 1998 200
Surface Water AUG 1998 60
Surface Water SEP 1998 4000
Surface Water OCT 1998 500
Surface Water NOV 1998 100
Surface Water DEC 1998 100


Source Water (Untreated) Levels of E. coli for E. H. Aldrich Station

Water Type Month E. coli Level (E.coli/100mL)
Surface Water JUL 1997 80
Surface Water AUG 1997 8
Surface Water SEP 1997 20
Surface Water OCT 1997 40
Surface Water NOV 1997 3800
Surface Water DEC 1997 720
Surface Water JAN 1998 500
Surface Water FEB 1998 900
Surface Water MAR 1998 1200
Surface Water APR 1998 200
Surface Water MAY 1998 200
Surface Water JUN 1998 2000
Surface Water JUL 1998 400
Surface Water AUG 1998 20
Surface Water SEP 1998 NO DATA
Surface Water OCT 1998 20
Surface Water NOV 1998 20
Surface Water DEC 1998 400


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
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