Water Source Contaminants Profile
Public Water Systems (PWS)
PWSID
NY5503390
PWS Name
ULSTER WATER DISTRICT
Pop. Served![]()
5500
Source Water![]()
Surface Water
System Type
CWS
Contaminant
1,1-DICHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,1-DICHLOROETHYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,1-DICHLOROPROPENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,1,1-TRICHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,1,1,2-TETRACHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,1,2-TRICHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,1,2,2-TETRACHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,2-DICHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,2-DICHLOROPROPANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,2,3-TRICHLOROBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,2,3-TRICHLOROPROPANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,2,4-TRICHLOROBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,2,4-TRIMETHYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,3-DICHLOROPROPANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
1,3,5-TRIMETHYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
2,2-DICHLOROPROPANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
BENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
BROMOBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
BROMOCHLOROMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
BROMOMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
CARBON TETRACHLORIDE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
CHLOROBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
CHLOROETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
CHLOROMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
CIS-1,2-DICHLOROETHYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
CIS-1,3-DICHLOROPROPENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
DIBROMOMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
DICHLORODIFLUOROMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
DICHLOROMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
ETHYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
HEXACHLOROBUTADIENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
ISOPROPYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
Lead (90th Percentile)
In Violation From
In Violation Until
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Maximum Contaminant Level Violation
Health Based Violation
Sampling Period Begin
1/1/2022
Sampling Period End
12/31/2024
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.002100000
Contaminant
Lead (90th Percentile)
In Violation From
In Violation Until
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Maximum Contaminant Level Violation
Health Based Violation
Sampling Period Begin
1/1/2019
Sampling Period End
12/31/2021
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.002100000
Contaminant
Lead (90th Percentile)
In Violation From
In Violation Until
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Maximum Contaminant Level Violation
Health Based Violation
Sampling Period Begin
1/1/2016
Sampling Period End
12/31/2018
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.002000000
Contaminant
M-DICHLOROBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
M-XYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
METHYL TERT-BUTYL ETHER
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
N-BUTYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
N-PROPYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
O-CHLOROTOLUENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
O-DICHLOROBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
O-XYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
P-CHLOROTOLUENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
P-DICHLOROBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
P-ISOPROPYLTOLUENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
P-XYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
SEC-BUTYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
STYRENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TERT-BUTYLBENZENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TETRACHLOROETHYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TOLUENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TRANS-1,2-DICHLOROETHYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TRANS-1,3-DICHLOROPROPENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TRICHLOROETHYLENE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TRICHLOROFLUOROMETHANE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
VINYL CHLORIDE
In Violation From
7/1/2017
In Violation Until
10/25/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Monitoring and Reporting Violation
Health Based Violation
N
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
713425P
Collection Date
7/9/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
712684P
Collection Date
6/18/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
712683P
Collection Date
6/4/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
711951P
Collection Date
5/20/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
711950P
Collection Date
5/7/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
711094P
Collection Date
4/16/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
anatoxin-a
Facility Water Type
SW
Sample ID
711093P
Collection Date
4/1/2019
Minimum Reporting Level
0.03
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
713425P
Collection Date
7/9/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
712684P
Collection Date
6/18/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
712683P
Collection Date
6/4/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
711951P
Collection Date
5/20/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
711950P
Collection Date
5/7/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
711094P
Collection Date
4/16/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
cylindrospermopsin
Facility Water Type
SW
Sample ID
711093P
Collection Date
4/1/2019
Minimum Reporting Level
0.09
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
713425P
Collection Date
7/9/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
712684P
Collection Date
6/18/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
712683P
Collection Date
6/4/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
711951P
Collection Date
5/20/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
711950P
Collection Date
5/7/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
711094P
Collection Date
4/16/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected
Contaminant
total microcystins
Facility Water Type
SW
Sample ID
711093P
Collection Date
4/1/2019
Minimum Reporting Level
0.3
Measure (parts per billion)
Not Detected

