Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NJ1103001
PWS Name	AQUA NJ - HAMILTON SQUARE
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	39128
County Served	Mercer

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	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	10247	Known	01-JUL-2024	31-DEC-2024	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	10243	Known	01-JAN-2024	31-MAR-2024	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	10245	Known	01-JAN-2024	31-MAR-2024	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	10244	Known	01-JAN-2024	31-MAR-2024	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	10242	Known	01-JAN-2024	31-MAR-2024	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	10241	Known	01-JAN-2024	31-MAR-2024	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	10236	Open	30-DEC-2023	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	10234	Open	03-OCT-2023	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	10232	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	10246	Known	01-JUL-2023	31-DEC-2023	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	10233	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	10229	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	10231	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	10230	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	10235	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	10183	Returned to Compliance	01-JUL-2021	31-DEC-2021	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	10179	Returned to Compliance	11-DEC-2019	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	10180	Returned to Compliance	01-JUL-2019	31-DEC-2019	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	10177	Returned to Compliance	01-JAN-2019	30-JUN-2019	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	10175	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	10174	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	10176	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	10146	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	10144	Returned to Compliance	01-MAY-2012	31-MAY-2012	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	6408	Returned to Compliance	01-JUL-2006	30-SEP-2006	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2205	Returned to Compliance	01-MAR-2004	31-MAR-2004	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2105	Returned to Compliance	01-MAR-2004	31-MAR-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	6206	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	6106	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	6006	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	5906	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	5806	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	5706	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	5606	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	6306	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	4306	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	5506	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	5406	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	5306	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	5206	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	5106	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	5006	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	4906	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	4806	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	4706	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	4606	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	4506	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	4406	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	197	Returned to Compliance	01-AUG-1997	31-AUG-1997	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
1689	10247	SIE	State Public Notification requested	15-APR-2025	State	-
1687	10235	SOX	State Compliance achieved	14-MAY-2024	State	-
1686	10246	SIE	State Public Notification requested	01-MAY-2024	State	-
1684	10242	SIE	State Public Notification requested	11-APR-2024	State	-
1684	10241	SIE	State Public Notification requested	11-APR-2024	State	-
1684	10244	SIE	State Public Notification requested	11-APR-2024	State	-
1684	10243	SIE	State Public Notification requested	11-APR-2024	State	-
1684	10245	SIE	State Public Notification requested	11-APR-2024	State	-
1677	10236	SFJ	State Formal Notice of Violation issued	08-MAR-2024	State	-
1673	10234	SIE	State Public Notification requested	23-JAN-2024	State	-
1671	10233	SIE	State Public Notification requested	11-DEC-2023	State	-
1671	10231	SIE	State Public Notification requested	11-DEC-2023	State	-
1671	10230	SIE	State Public Notification requested	11-DEC-2023	State	-
1671	10229	SIE	State Public Notification requested	11-DEC-2023	State	-
1671	10232	SIE	State Public Notification requested	11-DEC-2023	State	-
1654	10183	SIE	State Public Notification requested	10-FEB-2022	State	-
1655	10177	SOX	State Compliance achieved	10-JAN-2022	State	system submitted on-time, to water supply mailbox
1668	10180	SOX	State Compliance achieved	30-JUN-2020	State	-
1647	10179	SOX	State Compliance achieved	30-DEC-2019	State	-
1639	10176	SFJ	State Formal Notice of Violation issued	23-JAN-2017	State	-
1637	10175	SFJ	State Formal Notice of Violation issued	23-JAN-2017	State	-
1635	10174	SFJ	State Formal Notice of Violation issued	23-JAN-2017	State	-
1630	10146	SOX	State Compliance achieved	03-DEC-2012	State	-
1623	10144	SFJ	State Formal Notice of Violation issued	11-JUN-2012	State	-
1509	6408	SOX	State Compliance achieved	13-NOV-2008	State	-
1624	4706	SOX	State Compliance achieved	18-APR-2005	State	-
1624	4806	SOX	State Compliance achieved	18-APR-2005	State	-
1624	4906	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5006	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5106	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5206	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5306	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5406	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5506	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5606	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5706	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5806	SOX	State Compliance achieved	18-APR-2005	State	-
1624	5906	SOX	State Compliance achieved	18-APR-2005	State	-
1624	6006	SOX	State Compliance achieved	18-APR-2005	State	-
1624	6106	SOX	State Compliance achieved	18-APR-2005	State	-
1624	6206	SOX	State Compliance achieved	18-APR-2005	State	-
1624	6306	SOX	State Compliance achieved	18-APR-2005	State	-
1624	4606	SOX	State Compliance achieved	18-APR-2005	State	-
1624	4506	SOX	State Compliance achieved	18-APR-2005	State	-
1624	4306	SOX	State Compliance achieved	18-APR-2005	State	-
1624	4406	SOX	State Compliance achieved	18-APR-2005	State	-
504	2205	SOX	State Compliance achieved	01-MAY-2004	State	-
504	2105	SOX	State Compliance achieved	01-MAY-2004	State	-
397	197	SOX	State Compliance achieved	09-SEP-1997	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NJEMS 11-009 FLOCK RD.	32363	Yes	Consecutive Connection	Surface water	Seasonal	Active
WELL 14	4001	Yes	Well	Ground water	Permanent	Active
WELL 13	4000	Yes	Well	Ground water	Permanent	Active
WELL 12	3999	Yes	Well	Ground water	Permanent	Active
WELL 10	3998	Yes	Well	Ground water	Permanent	Active
WELL 11	3996	Yes	Well	Ground water	Permanent	Active
WELL 9	3997	Yes	Well	Ground water	Other	Inactive
NJEMS 11-011 ESTATES BLVD.	32364	Yes	Consecutive Connection	Surface water	Seasonal	Active
NJEMS 11-203 WHITEHORSE-MERCERVILLE ROAD	35184	Yes	Consecutive Connection	Surface water	Seasonal	Active
DISTRIBUTION SYSTEM	16427	No	Distribution System/Zone	-	-	Active
HISTORICAL SAMPLING STATION	25016	No	Sampling Station	-	-	Active
PARK AVE WTP	607	No	Treatment Plant	-	-	Active
ROBERT FROST DRIVE WTP	609	No	Treatment Plant	-	-	Active
PAXSON AVE WTP #2	610	No	Treatment Plant	-	-	Active
WELL 13/PAXSON AVENUE	611	No	Treatment Plant	-	-	Active
WELL 14 TREATMENT PLANT	612	No	Treatment Plant	-	-	Active
PAXSON AVE WTP	608	No	Treatment Plant	-	-	Inactive

1 - 17 of 17

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PARK AVE WTP	607	pH Adjustment	Corrosion control
PARK AVE WTP	607	Hypochlorination, Post	Disinfection
PARK AVE WTP	607	Sequestration	Corrosion control
PARK AVE WTP	607	Fluoridation	Other
PARK AVE WTP	607	Hypochlorination, Pre	Disinfection
PARK AVE WTP	607	Ion Exchange	Radionuclides removal
PAXSON AVE WTP	608	Gaseous Chlorination, Post	Disinfection
PAXSON AVE WTP	608	Sequestration	Corrosion control
ROBERT FROST DRIVE WTP	609	Filtration, Greensand	Iron removal
ROBERT FROST DRIVE WTP	609	Permanganate	Iron removal
ROBERT FROST DRIVE WTP	609	Fluoridation	Other
ROBERT FROST DRIVE WTP	609	pH Adjustment	Corrosion control
ROBERT FROST DRIVE WTP	609	pH Adjustment, Post	Corrosion control
ROBERT FROST DRIVE WTP	609	Hypochlorination, Post	Disinfection
ROBERT FROST DRIVE WTP	609	Hypochlorination, Pre	Disinfection
ROBERT FROST DRIVE WTP	609	Sequestration	Iron removal
PAXSON AVE WTP #2	610	pH Adjustment	Corrosion control
PAXSON AVE WTP #2	610	Sequestration	Corrosion control
PAXSON AVE WTP #2	610	Fluoridation	Other
PAXSON AVE WTP #2	610	Ion Exchange	Radionuclides removal
PAXSON AVE WTP #2	610	Hypochlorination, Post	Disinfection
WELL 13/PAXSON AVENUE	611	pH Adjustment	Corrosion control
WELL 13/PAXSON AVENUE	611	Hypochlorination, Post	Disinfection
WELL 13/PAXSON AVENUE	611	Fluoridation	Other
WELL 13/PAXSON AVENUE	611	Ion Exchange	Radionuclides removal
WELL 13/PAXSON AVENUE	611	Sequestration	Iron removal
WELL 14 TREATMENT PLANT	612	pH Adjustment, Post	Corrosion control
WELL 14 TREATMENT PLANT	612	Hypochlorination, Post	Disinfection
WELL 14 TREATMENT PLANT	612	Fluoridation	Other
WELL 14 TREATMENT PLANT	612	Aeration, Packed Tower	Organics removal
WELL 14 TREATMENT PLANT	612	Ion Exchange	Radionuclides removal
WELL 14 TREATMENT PLANT	612	Sequestration	Iron removal

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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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