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EF/ ICR Logo Summary Report for Ann Arbor Water Treatment Plant



[ Quarterly DBP ] [ Monthly DBP ] [ Monthly Microbials ]

Water Systems and Water Treatment Plants: A water system may consist of more than one treatment plant. Therefore, you may see data from more than one treatment plant in your water system report.


Sampled Quarterly - DISINFECTION BYPRODUCT (Treated Water)

Ann Arbor Water Plant - 411

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 NO DATA
7.6
OCT 1997 - DEC 1997
 1.5
 6.8
JAN 1998 - MAR 1998
 4
 2.7
APR 1998 - JUN 1998
 4.6
 3.7
JUL 1998 - SEP 1998
 4.4
 4.1
OCT 1998 - DEC 1998
 2.3
 6.3

Detailed water system reports are available for: Total Trihalomethanes and Haloacetic Acids 5.


Sampled Monthly - DISINFECTION BYPRODUCT (Treated Water)

Ann Arbor Water Plant - 411

Month Bromate(ppb) Chlorite(ppm)
JUL 1997
 3.8
 NO DATA
AUG 1997
 2.8
 NO DATA
SEP 1997
 2.4
 NO DATA
OCT 1997
 5.2
 NO DATA
NOV 1997
 1.9
 NO DATA
DEC 1997
 NO DATA NO DATA
JAN 1998
 2.7
 NO DATA
FEB 1998
 1.1
 NO DATA
MAR 1998
 2.5
 NO DATA
APR 1998
 3.4
 NO DATA
MAY 1998
 3.5
 NO DATA
JUN 1998
 4.9
 NO DATA
JUL 1998
 8.4
 NO DATA
AUG 1998
 7.9
 NO DATA
SEP 1998
 7.7
 NO DATA
OCT 1998
 3.5
 NO DATA
NOV 1998
 2.2
 NO DATA
DEC 1998
 1.5
 NO DATA

Detailed water system reports are available for: Bromate and Chlorite


Sampled Monthly - MICROBIALS (Source Water)

Ann Arbor Water Plant - 411

Month Cryptosporidium
(#oocysts/100L)		 Giardia
(#cysts/100L)		 Virus
(MPN/100L)		 Total Coliform
(Total Coliforms/100mL)		 Fecal Coliform
(Fecal Coliforms/100mL)		 E. coli
(E. coli/100mL)
JUL 1997
 0
 0
 0
 10
 2
AUG 1997
 0
 0
 0
 20
 6
SEP 1997
 63
 0
 0
 300
 27
OCT 1997
 0
 0
 0
 100
 8
NOV 1997
 0
 0
 0
 132
 6
DEC 1997
 0
 29
 3.2
 120
 3
JAN 1998
 117
 206
 0
 150
 12
FEB 1998
 0
 0
 10.1
 20
 4
MAR 1998
 0
 0
 3.2
 1733
 8
APR 1998
 0
 0
 3.2
 80
 3
MAY 1998
 0
 0
 0
 100
 36
JUN 1998
 0
 0
 1
 55
 4
JUL 1998
 0
 0
 0
 175
 2
AUG 1998
 0
 19
 0
 20
 2
SEP 1998
 0
 0
 0
 40
 0
OCT 1998
 0
 0
 0
 20
 3
NOV 1998
 0
 0
 0
 183
 42
DEC 1998
 0
 0
 0
 20
 4

Detailed water system reports are available for: Cryptosporidium, Giardia, Virus, Total Coliform, Fecal Coliform, and E. coli

You can click on column titles to obtain more information about the subject. You can click on the "NO DATA" to find out why data is missing. "0" value does not mean that the value was missing. Missing values are indicated by a "NO DATA" label. For microbial results, "0" indicates that a sample was analyzed, but that no microbes were found. For DBP results, "0" may indicate that a sample was analyzed, but that the result was less than the lowest value that the analytical method can reliably report.

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