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EF/ ICR Logo Summary Report for City of New York DEP



[ 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)

Catskill System - 506

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 52.7
 45.1
OCT 1997 - DEC 1997
 26.8
 NO DATA
JAN 1998 - MAR 1998
 17
 NO DATA
APR 1998 - JUN 1998
 25.4
 35.5
JUL 1998 - SEP 1998
 33.5
 56.7
OCT 1998 - DEC 1998
 28.3
 49.3

Croton System - 507

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 64.9
 69
OCT 1997 - DEC 1997
 56.3
 NO DATA
JAN 1998 - MAR 1998
 38.7
 NO DATA
APR 1998 - JUN 1998
 36
 52.7
JUL 1998 - SEP 1998
 82.7
 55.7
OCT 1998 - DEC 1998
 40.2
 56.6

NYC Groundwater - 519

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 13.6
 10.9
OCT 1997 - DEC 1997
 2.4
 NO DATA
JAN 1998 - MAR 1998
 8.2
 NO DATA
APR 1998 - JUN 1998
 6.5
 2.3
JUL 1998 - SEP 1998
 6.4
 5.5
OCT 1998 - DEC 1998
 6.3
 5

Delaware System - 721

Quarter Total Trihalomethanes(ppb) Haloacetic Acids 5(ppb)
JUL 1997 - SEP 1997
 34.4
 47.8
OCT 1997 - DEC 1997
 25.5
 NO DATA
JAN 1998 - MAR 1998
 18.8
 NO DATA
APR 1998 - JUN 1998
 25.5
 40.8
JUL 1998 - SEP 1998
 41.5
 51.8
OCT 1998 - DEC 1998
 25.4
 39.4

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)

Catskill System - 506

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
 1
 NO DATA
 NO DATA
 4
 NO DATA
AUG 1997
 0
 0
 NO DATA
 30
 0
 NO DATA
SEP 1997
 0
 .9
 NO DATA
 7
 2
 NO DATA
OCT 1997
 0
 .9
 NO DATA
 10
 0
 NO DATA
NOV 1997
 0
 0
 NO DATA
 53
 4
 NO DATA
DEC 1997
 0
 1.9
 NO DATA
 18
 1
 NO DATA
JAN 1998
 0
 3.8
 NO DATA
 2
 0
 NO DATA
FEB 1998
 0
 5.7
 NO DATA
 5
 2
 NO DATA
MAR 1998
 0
 2.8
 NO DATA
 7
 5
 NO DATA
APR 1998
 0
 0
 NO DATA
 9
 3
 NO DATA
MAY 1998
 0
 2
 NO DATA
 29
 6
 NO DATA
JUN 1998
 0
 .9
 NO DATA
 20
 0
 NO DATA
JUL 1998
 0
 2.8
 NO DATA
 7
 0
 NO DATA
AUG 1998
 0
 .9
 NO DATA
 250
 2
 NO DATA
SEP 1998
 0
 0
 NO DATA
 47
 0
 NO DATA
OCT 1998
 1.9
 1.9
 NO DATA
 73
 3
 NO DATA
NOV 1998
 0
 1.9
 NO DATA
 9
 0
 NO DATA
DEC 1998
 0
 0
 NO DATA
 6
 0
 NO DATA

Croton System - 507

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
 7
 1
 NO DATA
AUG 1997
 0
 0
 NO DATA
 143
 0
 NO DATA
SEP 1997
 0
 0
 NO DATA
 14
 11
 NO DATA
OCT 1997
 0
 0
 NO DATA
 37
 10
 NO DATA
NOV 1997
 0
 0
 NO DATA
 125
 4
 NO DATA
DEC 1997
 0
 0
 NO DATA
 24
 1
 NO DATA
JAN 1998
 0
 0
 NO DATA
 12
 3
 NO DATA
FEB 1998
 0
 .9
 NO DATA
 13
 5
 NO DATA
MAR 1998
 0
 0
 NO DATA
 8
 2
 NO DATA
APR 1998
 0
 0
 NO DATA
 4
 0
 NO DATA
MAY 1998
 0
 0
 NO DATA
 1
 0
 NO DATA
JUN 1998
 0
 0
 NO DATA
 30
 0
 NO DATA
JUL 1998
 0
 0
 NO DATA
 33
 3
 NO DATA
AUG 1998
 0
 0
 NO DATA
 333
 4
 NO DATA
SEP 1998
 0
 0
 NO DATA
 17
 1
 NO DATA
OCT 1998
 2.8
 0
 NO DATA
 6
 0
 NO DATA
NOV 1998
 0
 0
 NO DATA
 3
 0
 NO DATA
DEC 1998
 0
 0
 NO DATA
 2
 1
 NO DATA

NYC Groundwater - 519

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
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
AUG 1997
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
SEP 1997
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
OCT 1997
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
NOV 1997
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
DEC 1997
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
JAN 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
FEB 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
MAR 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
APR 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
MAY 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
JUN 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
JUL 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
AUG 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
SEP 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
OCT 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
NOV 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
DEC 1998
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA
 NO DATA

Delaware System - 721

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
 1
 NO DATA
 9
 5
 NO DATA
AUG 1997
 .9
 0
 NO DATA
 40
 1
 NO DATA
SEP 1997
 0
 0
 NO DATA
 14
 0
 NO DATA
OCT 1997
 0
 0
 NO DATA
 7
 0
 NO DATA
NOV 1997
 0
 0
 NO DATA
 23
 1
 NO DATA
DEC 1997
 0
 2.8
 NO DATA
 29
 7
 NO DATA
JAN 1998
 0
 3.8
 NO DATA
 9
 1
 NO DATA
FEB 1998
 0
 4.7
 NO DATA
 3
 2
 NO DATA
MAR 1998
 0
 .9
 NO DATA
 12
 10
 NO DATA
APR 1998
 0
 0
 NO DATA
 3
 0
 NO DATA
MAY 1998
 0
 3.8
 NO DATA
 44
 5
 NO DATA
JUN 1998
 0
 1.9
 NO DATA
 33
 3
 NO DATA
JUL 1998
 0
 1
 NO DATA
 14
 0
 NO DATA
AUG 1998
 0
 .9
 NO DATA
 229
 0
 NO DATA
SEP 1998
 0
 0
 NO DATA
 73
 1
 NO DATA
OCT 1998
 3.8
 .9
 NO DATA
 26
 3
 NO DATA
NOV 1998
 0
 1.9
 NO DATA
 17
 0
 NO DATA
DEC 1998
 .9
 .9
 NO DATA
 4
 0
 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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