Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CT0765101
PWS Name	CTWC - LEGEND HILL SYSTEM
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1368
County Served	New Haven

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	Total Haloacetic Acids (HAA5)	284626	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	284625	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	284622	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	284623	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	284621	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	284620	Returned to Compliance	19-JUN-2014	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	284618	Returned to Compliance	01-MAY-2014	31-MAY-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284612	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	284611	Returned to Compliance	01-JUL-2009	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284610	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284609	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284509	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284409	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284308	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	284108	Returned to Compliance	30-MAR-2008	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	284208	Returned to Compliance	27-JAN-2008	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	284008	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	283808	Returned to Compliance	01-OCT-2007	31-DEC-2007	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	283608	Returned to Compliance	12-AUG-2007	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	283708	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	283507	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	283307	Returned to Compliance	01-JAN-2007	31-MAR-2007	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	283107	Returned to Compliance	01-NOV-2006	30-NOV-2006	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	283207	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	283007	Returned to Compliance	01-JUL-2006	30-SEP-2006	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	282504	Returned to Compliance	01-NOV-2003	30-NOV-2003	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	282404	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	282604	Returned to Compliance	01-JAN-2000	31-DEC-2003	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	282804	Returned to Compliance	01-JAN-2000	31-DEC-2003	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	282704	Returned to Compliance	01-JAN-2000	31-DEC-2003	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7899	Returned to Compliance	01-JAN-1995	30-JUN-1995	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	282196	Returned to Compliance	01-JUL-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
225639	284625	SIF	State Public Notification received	15-JAN-2019	State	-
225639	284626	SIF	State Public Notification received	15-JAN-2019	State	-
225629	284621	SIA	State Violation/Reminder Notice	25-NOV-2014	State	-
225629	284622	SIA	State Violation/Reminder Notice	25-NOV-2014	State	-
225629	284623	SIA	State Violation/Reminder Notice	25-NOV-2014	State	-
225626	284620	SOX	State Compliance achieved	16-JUL-2014	State	-
225627	284618	SIF	State Public Notification received	16-JUL-2014	State	-
225621	284612	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	284610	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	284609	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	284509	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	284409	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	284308	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	284008	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	283808	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	283708	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	283507	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	283307	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	283207	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225621	283007	SOX	State Compliance achieved	31-DEC-2009	State	MCL Compliance
225616	284611	SIA	State Violation/Reminder Notice	21-OCT-2009	State	-
225009	283608	SOX	State Compliance achieved	30-DEC-2008	State	PN received
224008	284208	SOX	State Compliance achieved	07-JUL-2008	State	pn received
224008	284108	SOX	State Compliance achieved	07-JUL-2008	State	pn received
222507	283107	SOX	State Compliance achieved	02-JUL-2007	State	results received/corrected
220604	282804	SOX	State Compliance achieved	26-JUL-2004	State	-
220604	282504	SOX	State Compliance achieved	26-JUL-2004	State	-
220604	282604	SOX	State Compliance achieved	26-JUL-2004	State	-
220604	282704	SOX	State Compliance achieved	26-JUL-2004	State	-
220804	282404	SOX	State Compliance achieved	01-JUL-2004	State	-
80800	7899	SOX	State Compliance achieved	20-MAR-2000	State	-
58796	282196	SOX	State Compliance achieved	29-MAR-1996	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
RYERSON WELL - EMERGENCY	56422	Yes	Well	Ground water	Emergency	Inactive
WELL 3	27364	Yes	Well	Ground water	Permanent	Active
WELL 1	27363	Yes	Well	Ground water	Permanent	Active
WELL 4	27362	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	36001	No	Distribution System/Zone	-	-	Active
TRANSFER PUMPS	54378	No	Pump Facility	-	-	Active
ENTRY POINT	38478	No	Sampling Station	-	-	Active
ATMOSPHERIC STORAGE	54374	No	Storage	-	-	Active
PRESSURE STORAGE	54376	No	Storage	-	-	Active
TREATMENT PLANT	56537	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT	56537	Ion Exchange	Radionuclides removal
TREATMENT PLANT	56537	Aeration, Diffused	Radionuclides removal
TREATMENT PLANT	56537	Hypochlorination, Post	Disinfection
TREATMENT PLANT	56537	4-Log Treatment of Viruses	Disinfection
TREATMENT PLANT	56537	pH Adjustment	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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