Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NY2902848
PWS Name	ROCKVILLE CENTRE (V)
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	24700
County Served	Nassau

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, Regular	Nitrate Rule	Nitrate-Nitrite	15210	Known	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	15205	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	15204	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	15211	Known	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	15206	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	15212	Known	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	15207	Known	01-OCT-2013	31-DEC-2013	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	15208	Known	01-OCT-2013	31-DEC-2013	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	15203	Returned to Compliance	01-OCT-2002	31-OCT-2002	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	15101	Returned to Compliance	01-SEP-2001	30-SEP-2001	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	14999	Returned to Compliance	01-FEB-1998	28-FEB-1998	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	15099	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	14897	Known	01-OCT-1996	31-OCT-1996	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	14795	Returned to Compliance	01-APR-1995	30-APR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	11495	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	11595	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	11695	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	13395	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	13795	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	11295	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	11195	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	11095	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	10995	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	10895	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	13295	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	13195	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	12995	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	12795	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	12695	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	12595	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	9895	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	12095	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	14195	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	12495	Returned to Compliance	01-JAN-1995	31-MAR-1995	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	194	Known	01-JUL-1994	31-JUL-1994	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	1595	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	795	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	5895	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	395	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	495	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9395	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	595	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	8795	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	7595	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	7695	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	8595	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	8995	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	5295	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	5495	Known	01-JUL-1994	30-SEP-1994	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	4895	Known	01-JUL-1994	30-SEP-1994	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
1312	15204	SOX	State Compliance achieved	20-MAY-2016	State	-
1312	15205	SOX	State Compliance achieved	20-MAY-2016	State	-
1312	15206	SOX	State Compliance achieved	20-MAY-2016	State	-
1305	15212	SIE	State Public Notification requested	25-SEP-2015	State	-
1305	15211	SIE	State Public Notification requested	25-SEP-2015	State	-
1305	15210	SIE	State Public Notification requested	25-SEP-2015	State	-
1305	15207	SIE	State Public Notification requested	25-SEP-2015	State	-
1305	15208	SIE	State Public Notification requested	25-SEP-2015	State	-
1303	15203	SOX	State Compliance achieved	27-NOV-2002	State	Public and Consumer Notification completed and water system satisfactorily disinfected. Old External System Number: 2149
1002	15101	SOX	State Compliance achieved	01-NOV-2001	State	Public and consumer notification completed as required. Old External System Number: 78040
899	15099	SOX	State Compliance achieved	01-JUN-1999	State	Sampling and analysis completed by PWS. Old External System Number: 71743
698	14999	SOX	State Compliance achieved	26-AUG-1998	State	The Village of Rockville Centre took this matter into litigation. Public and consumer notification was enforced and completed by the PWS. Old External System Number: 71852
395	11595	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	11695	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	12095	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	12495	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	12595	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	12695	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	12795	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	12995	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	13195	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	13295	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	13395	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	13795	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	14195	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	14795	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	10895	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	9895	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	11495	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	11295	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	10995	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	11095	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855
395	11195	SOX	State Compliance achieved	24-JUL-1995	State	Public and consumer notification completed by PWS. Old External System Number: 71855

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 2C	17618	Yes	Well	Ground water	Permanent	Active
WELL 3B	44059	Yes	Well	Ground water	Permanent	Active
WELL 3A	17626	Yes	Well	Ground water	Permanent	Active
WELL 2B	17625	Yes	Well	Ground water	Permanent	Active
WELL 2A	17624	Yes	Well	Ground water	Permanent	Active
WELL 1B	17623	Yes	Well	Ground water	Permanent	Active
WELL 4A	17622	Yes	Well	Ground water	Permanent	Active
WELL 1A	17621	Yes	Well	Ground water	Permanent	Active
WELL 4C	17620	Yes	Well	Ground water	Permanent	Active
WELL 4B	17619	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	47123	No	Distribution System/Zone	-	-	Active
ELEVATED STORAGE TANK 3	104	No	Storage	-	-	Active
ELEVATED STORAGE TANK 4	105	No	Storage	-	-	Active
ELEVATED STORAGE TANK 1	7	No	Storage	-	-	Active
ELEVATED STORAGE TANK 2	8	No	Storage	-	-	Active
WELL 2A,2B & 2C: CL2,LIME&CALCIQUEST	1271	No	Treatment Plant	-	-	Active
WELL 1A & 1B: IRON FILTRATION PLANT	1292	No	Treatment Plant	-	-	Active
WELL 1A:CL2 & LIME	73529	No	Treatment Plant	-	-	Active
WELL 1B:CL2 & LIME	73530	No	Treatment Plant	-	-	Active
WELL 2A,2B & 2C IRON FILTRATION EFFLUENT	88707	No	Treatment Plant	-	-	Active
REEVE RD ELEV TANK:CL2, LIME &CALCIQUEST	9442	No	Treatment Plant	-	-	Active
ELEV STOR TANK 3:CL2, LIME & CALCIQUEST	9443	No	Treatment Plant	-	-	Active

1 - 22 of 22

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 2A,2B & 2C: CL2,LIME&CALCIQUEST	1271	Sequestration	Iron removal
WELL 2A,2B & 2C: CL2,LIME&CALCIQUEST	1271	pH Adjustment	Corrosion control
WELL 2A,2B & 2C: CL2,LIME&CALCIQUEST	1271	Hypochlorination, Pre	Disinfection
WELL 1A & 1B: IRON FILTRATION PLANT	1292	Filtration, Pressure Sand	Iron removal
WELL 1A & 1B: IRON FILTRATION PLANT	1292	Filtration, Pressure Sand	Iron removal
WELL 1A:CL2 & LIME	73529	Hypochlorination, Post	Disinfection
WELL 1A:CL2 & LIME	73529	pH Adjustment	Corrosion control
WELL 1B:CL2 & LIME	73530	Hypochlorination, Post	Disinfection
WELL 1B:CL2 & LIME	73530	pH Adjustment	Corrosion control
REEVE RD ELEV TANK:CL2, LIME &CALCIQUEST	9442	Sequestration	Iron removal
REEVE RD ELEV TANK:CL2, LIME &CALCIQUEST	9442	pH Adjustment, Post	Corrosion control
REEVE RD ELEV TANK:CL2, LIME &CALCIQUEST	9442	Hypochlorination, Pre	Disinfection
ELEV STOR TANK 3:CL2, LIME & CALCIQUEST	9443	Sequestration	Iron removal
ELEV STOR TANK 3:CL2, LIME & CALCIQUEST	9443	pH Adjustment, Post	Corrosion control
ELEV STOR TANK 3:CL2, LIME & CALCIQUEST	9443	Hypochlorination, Pre	Disinfection

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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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