Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NY5903451
PWS Name	OSSINING WATER DEPARTMENT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	30000
County Served	Westchester

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
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9396	Returned to Compliance	01-APR-2022	30-JUN-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9397	Returned to Compliance	01-APR-2022	30-JUN-2022	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	9292	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	9291	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	9290	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	9289	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	9287	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	9285	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	9284	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	9283	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	9282	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	9281	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	9280	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9279	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	9277	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	9276	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	9275	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	9274	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	9270	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	9245	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	9257	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	9256	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	9239	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	9296	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	9244	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	9238	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9208	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	9237	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	9236	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	9235	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	9241	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	9231	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	9229	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	9228	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	9227	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	9226	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	9225	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	9223	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	9222	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	9221	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	9220	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	9219	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	9218	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	9217	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	9216	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	9215	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9214	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9211	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9210	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9209	Returned to Compliance	01-JAN-2015	31-DEC-2015	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4049	9397	SOX	State Compliance achieved	15-AUG-2024	State	-
4049	9396	SOX	State Compliance achieved	15-AUG-2024	State	-
4031	9208	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9209	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9210	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9211	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9214	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9215	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9216	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9217	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9218	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9219	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9220	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9221	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9222	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9223	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9225	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9226	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9227	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9228	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9229	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9231	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9235	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9236	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9237	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9238	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9239	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9241	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9244	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9245	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9256	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9257	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9270	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9274	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9275	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9276	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9277	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9279	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9280	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9281	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9282	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9283	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9284	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9285	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9287	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9289	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9290	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9291	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9292	SOX	State Compliance achieved	29-JUL-2016	State	-
4031	9296	SOX	State Compliance achieved	29-JUL-2016	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CONSEC CONN NEW CASTLE/STANWOOD WD	60357	Yes	Consecutive Connection	Surface water	Emergency	Active
INDIAN BROOK RESERVOIR	30803	Yes	Intake	Surface water	Permanent	Active
CONSEC CONN NYC CROTON AQUEDUCT	31713	Yes	Consecutive Connection	Surface water	Emergency	Inactive
CONSEC CONN NYC CROTON AQUEDUCT	49325	Yes	Consecutive Connection	Surface water	Emergency	Inactive
CONSEC CONN NYC CROTON AQUEDUCT	60788	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	35789	No	Distribution System/Zone	-	-	Active
CONSEC CONN BRIARCLIFF MANOR	75069	No	Other	-	-	Active
PUMP STATION HAVELL STREET	65707	No	Pump Facility	-	-	Active
PUMP STATION PLEASANTVILLE ROAD	65708	No	Pump Facility	-	-	Active
PUMP STATION SHAFT 4	65709	No	Pump Facility	-	-	Active
STORAGE TANKS PLEASANTVILLE ROAD	47985	No	Storage	-	-	Active
STORAGE TANK LAKEVILLE	47986	No	Storage	-	-	Active
STORAGE TANK TORBANK	47987	No	Storage	-	-	Active
WATER TREATMENT PLANT	3346	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WATER TREATMENT PLANT	3346	4-Log Treatment of Viruses	Disinfection
WATER TREATMENT PLANT	3346	Permanganate	Taste / odor control
WATER TREATMENT PLANT	3346	Coagulation	Particulate removal
WATER TREATMENT PLANT	3346	pH Adjustment, Pre	Softening (hardness removal)
WATER TREATMENT PLANT	3346	Rapid Mix	Particulate removal
WATER TREATMENT PLANT	3346	Flocculation	Particulate removal
WATER TREATMENT PLANT	3346	Sedimentation	Particulate removal
WATER TREATMENT PLANT	3346	Filtration, Rapid Sand	Particulate removal
WATER TREATMENT PLANT	3346	Fluoridation	Other
WATER TREATMENT PLANT	3346	pH Adjustment, Post	Corrosion control

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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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