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EF/ ICR Logo Summary Report for CITY OF DURHAM



[ 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)

Brown Water Treatment Plant - 450

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 76
 87.5
OCT 1997 - DEC 1997
 93.8
 75.2
JAN 1998 - MAR 1998
 50.3
 117.6
APR 1998 - JUN 1998
 71.2
 103.5
JUL 1998 - SEP 1998
 105.9
 134.1
OCT 1998 - DEC 1998
 77.6
 73.8

Williams Water Treatment Plant - 451

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 76
 79.8
OCT 1997 - DEC 1997
 84.9
 76.2
JAN 1998 - MAR 1998
 50.7
 118.1
APR 1998 - JUN 1998
 69.8
 112.3
JUL 1998 - SEP 1998
 102.4
 142.2
OCT 1998 - DEC 1998
 64.2
 89.4

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


Sampled Monthly - DISINFECTION BYPRODUCT (Treated Water)

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


Sampled Monthly - DISINFECTION BYPRODUCT (Treated Water)

NO DATA - Click here to find out why.

Detailed water system reports are available for: Bromate and Chlorite


Sampled Monthly - MICROBIALS (Source Water)

Brown Water Treatment Plant - 450

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
 6.1
 0
 NO DATA
 500
 NO DATA
 NO DATA
AUG 1997
 2
 0
 NO DATA
 10
 NO DATA
 NO DATA
SEP 1997
 0
 2
 NO DATA
 0
 NO DATA
 NO DATA
OCT 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
NOV 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
DEC 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
JAN 1998
 4
 30
 NO DATA
 200
 NO DATA
 NO DATA
FEB 1998
 4
 24
 NO DATA
 100
 NO DATA
 NO DATA
MAR 1998
 0
 10.1
 NO DATA
 400
 NO DATA
 NO DATA
APR 1998
 0
 0
 NO DATA
 30
 NO DATA
 NO DATA
MAY 1998
 0
 4
 NO DATA
 0
 NO DATA
 NO DATA
JUN 1998
 4
 5.9
 NO DATA
 8
 NO DATA
 NO DATA
JUL 1998
 0
 0
 NO DATA
 0
 3
 NO DATA
AUG 1998
 0
 0
 NO DATA
 1300
 1900
 NO DATA
SEP 1998
 0
 0
 NO DATA
 200
 4
 NO DATA
OCT 1998
 0
 2
 NO DATA
 200
 80
 NO DATA
NOV 1998
 0
 0
 NO DATA
 2
 4
 NO DATA
DEC 1998
 0
 71.6
 NO DATA
 30
 NO DATA
 NO DATA

Williams Water Treatment Plant - 451

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
 16.3
 NO DATA
 0
 NO DATA
 NO DATA
AUG 1997
 0
 8
 NO DATA
 0
 NO DATA
 NO DATA
SEP 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
OCT 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
NOV 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
DEC 1997
 0
 0
 NO DATA
 0
 NO DATA
 NO DATA
JAN 1998
 12
 58.1
 NO DATA
 100
 NO DATA
 NO DATA
FEB 1998
 5.6
 16.9
 NO DATA
 100
 NO DATA
 NO DATA
MAR 1998
 0
 2
 NO DATA
 100
 NO DATA
 NO DATA
APR 1998
 0
 4
 NO DATA
 4
 NO DATA
 NO DATA
MAY 1998
 0
 4
 NO DATA
 0
 NO DATA
 NO DATA
JUN 1998
 0
 0
 NO DATA
 2
 NO DATA
 NO DATA
JUL 1998
 0
 2
 NO DATA
 0
 6
 NO DATA
AUG 1998
 0
 0
 NO DATA
 20
 2
 NO DATA
SEP 1998
 0
 0
 NO DATA
 200
 0
 NO DATA
OCT 1998
 0
 0
 NO DATA
 200
 0
 NO DATA
NOV 1998
 0
 0
 NO DATA
 0
 0
 NO DATA
DEC 1998
 4
 11.9
 NO DATA
 10
 NO DATA
 NO DATA

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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