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EF/ ICR Logo Summary Report for EAST BAY MUNICIPAL UTILITY DISTRICT



[ 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)

Orinda Filter Plant - 138

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 67.7
 16.9
OCT 1997 - DEC 1997
 47.2
 15.3
JAN 1998 - MAR 1998
 64.3
 23.7
APR 1998 - JUN 1998
 49.7
 23.8
JUL 1998 - SEP 1998
 43.6
 NO DATA
OCT 1998 - DEC 1998
 35.4
 19.5

Upper San Leandro Filter Plant - 139

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 108
 14.9
OCT 1997 - DEC 1997
 105.5
 19.4
JAN 1998 - MAR 1998
 115.1
 37.9
APR 1998 - JUN 1998
 111.8
 43.8
JUL 1998 - SEP 1998
 137.7
 30.1
OCT 1998 - DEC 1998
 103.2
 32.7

Walnut Creek Filter Plant - 140

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 75.9
 18.3
OCT 1997 - DEC 1997
 58.1
 14.4
JAN 1998 - MAR 1998
 61.5
 23.9
APR 1998 - JUN 1998
 54.6
 23.9
JUL 1998 - SEP 1998
 45.2
 NO DATA
OCT 1998 - DEC 1998
 36.1
 21.2

Sobrante Filter Plant - 141

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 100.6
 11
OCT 1997 - DEC 1997
 61.9
 7.5
JAN 1998 - MAR 1998
 87.6
 11.6
APR 1998 - JUN 1998
 70.1
 22.8
JUL 1998 - SEP 1998
 68.1
 18
OCT 1998 - DEC 1998
 46.1
 22

Layfayette Filter Plant - 143

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 60
 16.7
OCT 1997 - DEC 1997
 52.1
 14.1
JAN 1998 - MAR 1998
 59.3
 19.9
APR 1998 - JUN 1998
 53.3
 20.7
JUL 1998 - SEP 1998
 44.1
 NO DATA
OCT 1998 - DEC 1998
 NO DATA
NO DATA

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


Sampled Monthly - DISINFECTION BYPRODUCT (Treated Water)

Sobrante Filter Plant - 141

Month Bromate(ppb) Chlorite(ppm)
JUL 1997
 1.5
 NO DATA
AUG 1997
 .8
 NO DATA
SEP 1997
 1.9
 NO DATA
OCT 1997
 1.5
 NO DATA
NOV 1997
 NO DATA NO DATA
DEC 1997
 1.3
 NO DATA
JAN 1998
 NO DATA NO DATA
FEB 1998
 NO DATA NO DATA
MAR 1998
 NO DATA NO DATA
APR 1998
 NO DATA NO DATA
MAY 1998
 1.3
 NO DATA
JUN 1998
 2.3
 NO DATA
JUL 1998
 1.9
 NO DATA
AUG 1998
 NO DATA NO DATA
SEP 1998
 1.9
 NO DATA
OCT 1998
 1.6
 NO DATA
NOV 1998
 1.9
 NO DATA
DEC 1998
 1.6
 NO DATA

Upper San Leandro Filter Plant - 139

Month Bromate(ppb) Chlorite(ppm)
JUL 1997
 1.5
 NO DATA
AUG 1997
 1.7
 NO DATA
SEP 1997
 2
 NO DATA
OCT 1997
 2.2
 NO DATA
NOV 1997
 1.4
 NO DATA
DEC 1997
 2.2
 NO DATA
JAN 1998
 NO DATA NO DATA
FEB 1998
 NO DATA NO DATA
MAR 1998
 NO DATA NO DATA
APR 1998
 2.6
 NO DATA
MAY 1998
 1.5
 NO DATA
JUN 1998
 3.5
 NO DATA
JUL 1998
 3.8
 NO DATA
AUG 1998
 3.1
 NO DATA
SEP 1998
 3.4
 NO DATA
OCT 1998
 3.2
 NO DATA
NOV 1998
 2.5
 NO DATA
DEC 1998
 NO DATA NO DATA

Detailed water system reports are available for: Bromate and Chlorite


Sampled Monthly - MICROBIALS (Source Water)

Orinda Filter Plant - 138

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
 NO DATA
 800
 0
AUG 1997
 0
 0
 NO DATA
 50
 0
SEP 1997
 0
 0
 NO DATA
 50
 0
OCT 1997
 0
 0
 NO DATA
 8
 4
NOV 1997
 0
 0
 NO DATA
 8
 4
DEC 1997
 0
 1
 NO DATA
 8
 8
JAN 1998
 0
 3
 NO DATA
 23
 2
FEB 1998
 0
 1
 NO DATA
 4
 4
MAR 1998
 0
 0
 NO DATA
 0
 0
APR 1998
 2
 5
 NO DATA
 4
 2
MAY 1998
 0
 1
 NO DATA
 0
 0
JUN 1998
 0
 4
 NO DATA
 2
 0
JUL 1998
 0
 1
 NO DATA
 4
 2
AUG 1998
 0
 0
 NO DATA
 8
 0
SEP 1998
 0
 2
 NO DATA
 6
 2
OCT 1998
 NO DATA
 NO DATA
 NO DATA
 7
 0
NOV 1998
 0
 0
 NO DATA
 8
 4
DEC 1998
 3
 1
 NO DATA
 2
 2

Upper San Leandro Filter Plant - 139

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
 NO DATA
 130
 2
AUG 1997
 0
 0
 NO DATA
 2
 0
SEP 1997
 0
 0
 NO DATA
 24
 0
OCT 1997
 0
 0
 NO DATA
 4
 0
NOV 1997
 0
 0
 NO DATA
 8
 0
DEC 1997
 0
 0
 NO DATA
 8
 0
JAN 1998
 0
 74
 NO DATA
 130
 30
FEB 1998
 0
 0
 NO DATA
 130
 50
MAR 1998
 0
 0
 NO DATA
 50
 30
APR 1998
 0
 0
 NO DATA
 36
 0
MAY 1998
 0
 0
 NO DATA
 14
 0
JUN 1998
 0
 0
 NO DATA
 4
 0
JUL 1998
 0
 0
 NO DATA
 4
 0
AUG 1998
 0
 0
 NO DATA
 2
 0
SEP 1998
 0
 0
 NO DATA
 17
 0
OCT 1998
 NO DATA
 NO DATA
 NO DATA
 50
 0
NOV 1998
 0
 0
 NO DATA
 30
 11
DEC 1998
 0
 0
 NO DATA
 0
 0

Walnut Creek Filter Plant - 140

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
 NO DATA
 800
 0
AUG 1997
 0
 0
 NO DATA
 50
 0
SEP 1997
 0
 0
 NO DATA
 50
 0
OCT 1997
 0
 0
 NO DATA
 8
 4
NOV 1997
 0
 0
 NO DATA
 8
 4
DEC 1997
 0
 1
 NO DATA
 8
 8
JAN 1998
 0
 3
 NO DATA
 23
 2
FEB 1998
 0
 1
 NO DATA
 4
 4
MAR 1998
 0
 0
 NO DATA
 0
 0
APR 1998
 2
 5
 NO DATA
 4
 2
MAY 1998
 0
 1
 NO DATA
 0
 0
JUN 1998
 0
 4
 NO DATA
 2
 0
JUL 1998
 0
 1
 NO DATA
 4
 2
AUG 1998
 0
 0
 NO DATA
 8
 0
SEP 1998
 0
 2
 NO DATA
 6
 2
OCT 1998
 NO DATA
 NO DATA
 NO DATA
 7
 0
NOV 1998
 0
 0
 NO DATA
 8
 4
DEC 1998
 3
 1
 NO DATA
 2
 2

Sobrante Filter Plant - 141

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
 240
 0
AUG 1997
 0
 0
 0
 140
 0
SEP 1997
 0
 0
 NO DATA
 1600
 2
OCT 1997
 0
 0
 NO DATA
 110
 0
NOV 1997
 0
 0
 NO DATA
 70
 2
DEC 1997
 0
 0
 NO DATA
 4
 0
JAN 1998
 0
 88
 NO DATA
 0
 0
FEB 1998
 0
 0
 NO DATA
 300
 23
MAR 1998
 0
 0
 NO DATA
 9
 0
APR 1998
 0
 0
 NO DATA
 13
 2
MAY 1998
 0
 0
 NO DATA
 4
 0
JUN 1998
 0
 0
 NO DATA
 2
 0
JUL 1998
 0
 0
 NO DATA
 4
 0
AUG 1998
 0
 0
 NO DATA
 4
 0
SEP 1998
 0
 22
 NO DATA
 22
 0
OCT 1998
 NO DATA
 NO DATA
 NO DATA
 33
 0
NOV 1998
 0
 0
 NO DATA
 17
 4
DEC 1998
 53
 0
 NO DATA
 2
 0

Layfayette Filter Plant - 143

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
 NO DATA
 800
 0
AUG 1997
 0
 0
 NO DATA
 50
 0
SEP 1997
 0
 0
 NO DATA
 50
 0
OCT 1997
 0
 0
 NO DATA
 8
 4
NOV 1997
 0
 0
 NO DATA
 8
 4
DEC 1997
 0
 1
 NO DATA
 8
 8
JAN 1998
 0
 3
 NO DATA
 23
 2
FEB 1998
 0
 1
 NO DATA
 4
 4
MAR 1998
 0
 0
 NO DATA
 0
 0
APR 1998
 2
 5
 NO DATA
 4
 2
MAY 1998
 0
 1
 NO DATA
 0
 0
JUN 1998
 0
 4
 NO DATA
 2
 0
JUL 1998
 0
 1
 NO DATA
 4
 2
AUG 1998
 0
 0
 NO DATA
 8
 0
SEP 1998
 0
 2
 NO DATA
 6
 2
OCT 1998
 NO DATA
 NO DATA
 NO DATA
 7
 0
NOV 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
DEC 1998
 3
 1
 NO DATA
 2
 2

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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