Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NY3503526
PWS Name	CORNWALL-ON-HUDSON
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	9700
County Served	Orange

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
Other	Variance/Exemption/Other Compliance	Miscellaneous Other Rules	-	26827	Returned to Compliance	03-AUG-2022	10-AUG-2022	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	26795	Returned to Compliance	01-OCT-2018	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	26790	Returned to Compliance	01-OCT-2017	31-DEC-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	26791	Returned to Compliance	01-OCT-2017	31-DEC-2017	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	26788	Returned to Compliance	01-JUL-2017	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	26781	Returned to Compliance	01-JUL-2015	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	26784	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	26782	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	26783	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	26785	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	26776	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	26778	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	26736	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	26737	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	26700	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	26701	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	26702	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	26703	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	26706	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	26707	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	26708	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	26709	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	26710	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	26711	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	26712	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	26713	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	26714	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	26715	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	26717	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	26718	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	26719	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	26720	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	26721	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	26731	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	26730	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	26729	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	26728	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	26727	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	26733	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	26723	Returned to Compliance	01-JUL-2013	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	26555	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	26531	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	26557	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	26558	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	26559	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	26561	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	26563	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	26564	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	26565	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	26566	Returned to Compliance	01-JAN-2013	31-DEC-2013	No

1 - 50 of 242

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4586	26496	SIF	State Public Notification received	20-NOV-2023	State	-
4586	26497	SIF	State Public Notification received	20-NOV-2023	State	-
4586	26498	SIF	State Public Notification received	20-NOV-2023	State	-
4586	26499	SIF	State Public Notification received	20-NOV-2023	State	-
4586	26500	SIF	State Public Notification received	20-NOV-2023	State	-
4586	26501	SIF	State Public Notification received	20-NOV-2023	State	-
4586	26502	SIF	State Public Notification received	20-NOV-2023	State	-
4584	26503	SIF	State Public Notification received	20-NOV-2023	State	-
4582	26504	SIF	State Public Notification received	20-NOV-2023	State	-
4579	26507	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26530	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26531	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26544	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26548	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26549	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26550	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26551	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26553	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26554	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26555	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26556	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26557	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26558	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26559	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26561	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26563	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26564	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26565	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26566	SIF	State Public Notification received	20-NOV-2023	State	-
4578	26570	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26700	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26701	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26702	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26703	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26706	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26707	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26708	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26709	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26710	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26711	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26712	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26713	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26714	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26715	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26717	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26718	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26719	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26720	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26721	SIF	State Public Notification received	20-NOV-2023	State	-
4577	26723	SIF	State Public Notification received	20-NOV-2023	State	-

1 - 50 of 242

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CONNECTION TO CATSKILL AQUEDUCT - NYC	30174	Yes	Consecutive Connection	Surface water	Permanent	Active
JACKSON AVE WELL #1	38778	Yes	Well	Ground water	Permanent	Active
JACKSON AVE WELL #2	18459	Yes	Well	Ground water	Permanent	Active
GIBSON (UPPER) RESERVOIR	73411	Yes	Reservoir	Surface water	Permanent	Active
ALECK MEADOW RESERVOIR	73410	Yes	Reservoir	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	61998	No	Distribution System/Zone	-	-	Active
IDSE DISTRIBUTION SYSTEM	75632	No	Distribution System/Zone	-	-	Active
CONNECTION TO FIRTHCLIFFE W.D.	36325	No	Other	-	-	Active
BLACKROCK FILTRATION PLANT	73409	No	Treatment Plant	-	-	Active
TP JACKSON WELLS #1, #2	7810	No	Treatment Plant	-	-	Active
CATSKILL FILTER PLANT-PALAMINO RD	9525	No	Treatment Plant	-	-	Inactive

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BLACKROCK FILTRATION PLANT	73409	Inhibitor, Orthophosphate	Corrosion control
BLACKROCK FILTRATION PLANT	73409	pH Adjustment, Post	Corrosion control
BLACKROCK FILTRATION PLANT	73409	Hypochlorination, Post	Disinfection
BLACKROCK FILTRATION PLANT	73409	Filtration, Ultrafiltration	Particulate removal
TP JACKSON WELLS #1, #2	7810	Hypochlorination, Pre	Disinfection
TP JACKSON WELLS #1, #2	7810	Inhibitor, Orthophosphate	Corrosion control
CATSKILL FILTER PLANT-PALAMINO RD	9525	Inhibitor, Orthophosphate	Corrosion control
CATSKILL FILTER PLANT-PALAMINO RD	9525	pH Adjustment	Corrosion control
CATSKILL FILTER PLANT-PALAMINO RD	9525	Hypochlorination, Pre	Disinfection
CATSKILL FILTER PLANT-PALAMINO RD	9525	Filtration, Rapid Sand	Particulate removal
CATSKILL FILTER PLANT-PALAMINO RD	9525	Flocculation	Particulate removal
CATSKILL FILTER PLANT-PALAMINO RD	9525	Rapid Mix	Particulate removal
CATSKILL FILTER PLANT-PALAMINO RD	9525	Sedimentation	Particulate removal
CATSKILL FILTER PLANT-PALAMINO RD	9525	Hypochlorination, Post	Disinfection

1 - 14 of 14

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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