Water Source Contaminants Profile
Public Water Systems (PWS)
PWSID
NY3504068
PWS Name
GREENWOOD LAKE MIDDLE SCHOOL
Pop. Served![]()
361
Source Water![]()
Ground Water
System Type
NTNCWS
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
1/1/2021
Sampling Period End
12/31/2023
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.001000000
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
1/1/2020
Sampling Period End
12/31/2020
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.002050000
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
12/31/2019
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.001000000
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
1/1/2018
Sampling Period End
12/31/2018
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.003200000
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
7/1/2017
Sampling Period End
12/31/2017
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.005200000
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
1/1/2017
Sampling Period End
6/30/2017
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.012000000
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
1/1/2014
Sampling Period End
12/31/2016
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
0.018000000
Contaminant
LEAD & COPPER RULE
In Violation From
9/12/2016
In Violation Until
7/5/2017
Violation Category
Please refer to the Glossary for definitions of the violation categories.
Treatment Technique Violation
Health Based Violation
Y
Sampling Period Begin
Sampling Period End
90th percentile measure mg/L exceedance
Please refer to the lead section for more information.
Contaminant
TOTAL HALOACETIC ACIDS (HAA5)
In Violation From
10/1/2022
In Violation Until
3/3/2023
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
TOTAL HALOACETIC ACIDS (HAA5)
In Violation From
10/1/2022
In Violation Until
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
TTHM
In Violation From
10/1/2022
In Violation Until
3/3/2023
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
TTHM
In Violation From
10/1/2022
In Violation Until
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.

