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EF/ ICR Logo Source Water (Untreated) Levels of Total Coliform for
City of Wilmington Delaware


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 Porter Filter Plant

Water Type Month Total Coliform Level (Total Coliforms/100mL)
Surface Water JUL 1997 387
Surface Water AUG 1997 228
Surface Water SEP 1997 435
Surface Water OCT 1997 613
Surface Water NOV 1997 214
Surface Water DEC 1997 88
Surface Water JAN 1998 86
Surface Water FEB 1998 109
Surface Water MAR 1998 52
Surface Water APR 1998 71
Surface Water MAY 1998 579
Surface Water JUN 1998 770
Surface Water JUL 1998 325
Surface Water AUG 1998 1120
Surface Water SEP 1998 435
Surface Water OCT 1998 150
Surface Water NOV 1998 56
Surface Water DEC 1998 99


Source Water (Untreated) Levels of Total Coliform for Brandywine Filter Plant

Water Type Month Total Coliform Level (Total Coliforms/100mL)
Surface Water JUL 1997 770
Surface Water AUG 1997 344
Surface Water SEP 1997 365
Surface Water OCT 1997 365
Surface Water NOV 1997 186
Surface Water DEC 1997 93
Surface Water JAN 1998 61
Surface Water FEB 1998 866
Surface Water MAR 1998 50
Surface Water APR 1998 201
Surface Water MAY 1998 1120
Surface Water JUN 1998 325
Surface Water JUL 1998 1120
Surface Water AUG 1998 2419
Surface Water SEP 1998 517
Surface Water OCT 1998 133
Surface Water NOV 1998 71
Surface Water DEC 1998 613


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
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