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PWS ID	CT1180011
PWS Name	AQUARION-RIDGEFIELD
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	7476
County Served	Fairfield

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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	8530714	Returned to Compliance	30-DEC-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	8530713	Returned to Compliance	21-JAN-2021	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	8530711	Returned to Compliance	12-SEP-2019	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8530710	Returned to Compliance	01-JUL-2018	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8529906	Returned to Compliance	01-JUL-2006	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	114294	Returned to Compliance	01-JUL-1993	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	115493	Returned to Compliance	01-MAY-1993	31-MAY-1993	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	114293	Known	01-JAN-1993	26-OCT-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	1295	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	1395	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	1495	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	195	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	295	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	695	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	1095	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	995	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	595	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	895	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	1195	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	395	Returned to Compliance	01-JAN-1992	31-DEC-1994	No
TT	Failure to Filter (SWTR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9999997	Known	01-JAN-1992	23-MAY-2001	Yes
TT	Failure to Filter (SWTR)	Surface Water Treatment Rule	Surface Water Treatment Rule	8510798	Returned to Compliance	01-JAN-1992	-	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	17895	Returned to Compliance	01-JAN-1991	31-DEC-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
157217	8530714	SOX	State Compliance achieved	21-JAN-2022	State	Lead Consumer Notice received
157216	8530711	SIF	State Public Notification received	22-SEP-2021	State	-
157215	8530713	SOX	State Compliance achieved	03-MAY-2021	State	-
157210	8530710	SIA	State Violation/Reminder Notice	16-JAN-2019	State	-
157207	8529906	SIA	State Violation/Reminder Notice	13-OCT-2006	State	-
126801	8510798	SOX	State Compliance achieved	23-MAY-2001	State	-
7794	114294	SOX	State Compliance achieved	26-OCT-1993	State	-
156893	115493	SOX	State Compliance achieved	25-AUG-1993	State	-
9999997	9999997	SFL	State Administrative/Compliance Order without penalty issued	29-JUN-1993	ODSWeb	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTERCONNECTION - CT0150011 -BRANCHVILLE	46180	Yes	Consecutive Connection	Surface water	Permanent	Active
RUSTIC DRIVE WELL 19	59476	Yes	Well	Ground water	Permanent	Inactive
RUSTIC DRIVE WELL 17A	59475	Yes	Well	Ground water	Permanent	Inactive
RUSTIC DRIVE WELL 17	59474	Yes	Well	Ground water	Permanent	Inactive
GREAT HILL ROAD WELL 10B	59473	Yes	Well	Ground water	Permanent	Inactive
GREAT HILL ROAD WELL 10A	59472	Yes	Well	Ground water	Permanent	Inactive
LAURELWOOD WELL #2	47384	Yes	Well	Ground water	Permanent	Inactive
LAURELWOOD WELL #1	47383	Yes	Well	Ground water	Permanent	Inactive
OSCALETA WELL #5	27331	Yes	Well	Ground water	Permanent	Inactive
OSCALETA WELL #1 (AKA CHURCH WELL)	27661	Yes	Well	Ground water	Permanent	Active
BEECHWOOD WELL #1	27354	Yes	Well	Ground water	Permanent	Active
BEECHWOOD WELL #2	27353	Yes	Well	Ground water	Permanent	Active
OSCALETA WELL #3	27330	Yes	Well	Ground water	Permanent	Active
OSCALETA WELL #2	27329	Yes	Well	Ground water	Permanent	Active
OSCALETA CAISSON WELL(#4)	27328	Yes	Well	Ground water	Permanent	Active
NORTH STREET WELL #2	27327	Yes	Well	Ground water	Permanent	Active
NORTH STREET WELL #1	27326	Yes	Well	Ground water	Permanent	Active
NORTH STREET WELL #3	27325	Yes	Well	Ground water	Permanent	Active
SOUNDVIEW WELL #1	58927	Yes	Well	Ground water	Other	Inactive
SVG WELL #PW8	47385	Yes	Well	Ground water	Other	Inactive
HIGH SCHOOL WELL	28080	Yes	Well	Ground water	Other	Inactive
ROUND POND RESERVOIR	32639	Yes	Reservoir	Surface water	Emergency	Inactive
ROUND POND RESERVOIR	23348	Yes	Intake	Surface water	Emergency	Inactive
DISTRIBUTION SYSTEM	23349	No	Distribution System/Zone	-	-	Active
BRANCHVILLE PUMP STATION	58929	No	Pump Facility	-	-	Active
ELEVEN LEVELS PUMP STATION	58931	No	Pump Facility	-	-	Active
NORTH ST TRANSFER PUMPS	58933	No	Pump Facility	-	-	Active
OSCALETA TRANSFER PUMP STATION	58935	No	Pump Facility	-	-	Active
LAURELWOOD III PUMP STATION	60159	No	Pump Facility	-	-	Active
LAURELWOOD BOOSTER PUMP STATION	54877	No	Pump Facility	-	-	Inactive
HIGH RIDGE PUMP STATION	59281	No	Pump Facility	-	-	Inactive
GREAT HILL ROAD BOOSTER PUMP STATION	60161	No	Pump Facility	-	-	Inactive
RUSTIC DRIVE BOOSTER PUMP STATION	60163	No	Pump Facility	-	-	Inactive
OSCALETA WELLFIELD TP ENTRY POINT	38112	No	Sampling Station	-	-	Active
NORTH STREET WELLFIELD TP ENTRY POINT	46181	No	Sampling Station	-	-	Active
BEECHWOOD WELLFIELD TP ENTRY POINT	46182	No	Sampling Station	-	-	Active
OSCALETA COMBO (2&3) RAW SAMPLE TAP	46184	No	Sampling Station	-	-	Active
NORTH STREET WELLFIELD RAW TAP	46185	No	Sampling Station	-	-	Active
BEECHWOOD WELLFIELD RAW SAMPLE TAP	46186	No	Sampling Station	-	-	Active
HIGH SCHOOL WELL TP ENTRY POINT	46183	No	Sampling Station	-	-	Inactive
LAURELWOOD WELLS TP ENTRY POINT	47381	No	Sampling Station	-	-	Inactive
LAURELWOOD WELLS RAW ENTRY POINT	48132	No	Sampling Station	-	-	Inactive
ENTRY POINT - WELLS 10A & 10B	59477	No	Sampling Station	-	-	Inactive
ENTRY POINT - WELLS 17, 17A & 19	59478	No	Sampling Station	-	-	Inactive
NORTH ST STORAGE TANKS (2)	50976	No	Storage	-	-	Active
OSCALETA CLEAR WELLS (2)	50978	No	Storage	-	-	Active
PEACEABLE RIDGE STANDPIPES (2)	59991	No	Storage	-	-	Active
PEACEABLE RIDGE STORAGE TANK #1	50974	No	Storage	-	-	Inactive
LAURELWOOD STORAGE TANK	50980	No	Storage	-	-	Inactive
LAURELWOOD HYDRO TANK	50982	No	Storage	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
NORTH STREET WELLS TREATMENT PLANT	36503	Inhibitor, Orthophosphate	Corrosion control
NORTH STREET WELLS TREATMENT PLANT	36503	Hypochlorination, Post	Disinfection
NORTH STREET WELLS TREATMENT PLANT	36503	4-Log Treatment of Viruses	Disinfection
OSCALETA WELLS TREATMENT PLANT	36504	Hypochlorination, Post	Disinfection
OSCALETA WELLS TREATMENT PLANT	36504	Ultraviolet Radiation	Disinfection
OSCALETA WELLS TREATMENT PLANT	36504	pH Adjustment	Corrosion control
BEECHWOOD WELLS TREATMENT PLANT	36505	Hypochlorination, Post	Disinfection
BEECHWOOD WELLS TREATMENT PLANT	36505	Inhibitor, Polyphosphate	Corrosion control
BEECHWOOD WELLS TREATMENT PLANT	36505	Sequestration	Softening (hardness removal)
LAURELWOOD WELLS TREATMENT PLANT	47382	Hypochlorination, Post	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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