---

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

Go

Rows1510152025501001000All

Actions

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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1724	Returned to Compliance	01-JUL-2023	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1736	Returned to Compliance	31-MAR-2020	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1685	Returned to Compliance	01-JUN-2019	30-JUN-2019	No

• 1 - 3 of 3

Column Actions

Search

---

Enforcement Actions

Go

Rows1510152025501001000All

Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
11	1724	SOX	State Compliance achieved	28-JUL-2023	State	2022 CCR completed
10	1685	SOX	State Compliance achieved	24-JUN-2020	State	-
12	1736	SOX	State Compliance achieved	13-APR-2020	State	Lead Consumer Notice and Certification submitted

• 1 - 3 of 3

Column Actions

Search

---

All Facilities

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
POQUONNOCK RES INTAKE	21151	Yes	Intake	Surface water	Permanent	Active
PUMPING WELL 3	27856	Yes	Well	Ground water	Permanent	Active
PUMPING WELL 2	27855	Yes	Well	Ground water	Emergency	Inactive
PUMPING WELL 1	27854	Yes	Well	Ground water	Emergency	Inactive
BUDDINGTON POND	32587	Yes	Reservoir	Surface water	Permanent	Active
POQUONNOCK RESERVOIR	32584	Yes	Reservoir	Surface water	Permanent	Active
SMITH LAKE	32583	Yes	Reservoir	Surface water	Permanent	Active
POHEGANUT RESERVOIR	32582	Yes	Reservoir	Surface water	Permanent	Active
LEDYARD RESERVOIR	32581	Yes	Reservoir	Surface water	Permanent	Active
MORGAN POND RESERVOIR	32580	Yes	Reservoir	Surface water	Permanent	Active
BILLINGS AVERY BROOK DIVERSION	32579	Yes	Reservoir	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	21157	No	Distribution System/Zone	-	-	Active
THOMPSON & GREAT BROOK DIVERSION	32585	No	Other	-	-	Active
HEMPSTEAD BROOK DIVERSION	32586	No	Other	-	-	Active
LONG HILL PUMP STATION	52486	No	Pump Facility	-	-	Active
GUNGYWAMP RD PUMP STATION	52488	No	Pump Facility	-	-	Active
FORT HILL PUMP STATION	52490	No	Pump Facility	-	-	Active
RAW WATER LOW LIFT PUMP STATION	53060	No	Pump Facility	-	-	Active
CENTER GROTON BOOSTER PUMP STATION	55550	No	Pump Facility	-	-	Active
WALKER HILL PUMP STATION	62522	No	Pump Facility	-	-	Active
POQUONNOCK TREATMENT PLANT ENTRY POINT	38602	No	Sampling Station	-	-	Active
BRANDEGEE AVENUE STORAGE TANK	52476	No	Storage	-	-	Active
WALKER HILL STORAGE TANK	52478	No	Storage	-	-	Active
BAILEY HILL STORAGE TANK #2	52482	No	Storage	-	-	Active
FORT HILL STORAGE TANK	52484	No	Storage	-	-	Active
POQUONNOCK TREATMENT PLANT CLEARWELL	53042	No	Storage	-	-	Active
PLANT BACKWASH TANKS	61112	No	Storage	-	-	Active
BAILEY HILL STORAGE TANK #1	52480	No	Storage	-	-	Inactive
POQUONNOCK TREATMENT PLANT	11031	No	Treatment Plant	-	-	Active

• 1 - 29 of 29

Column Actions

Search

---

Treatment Processes

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Treatment Process	Treatment Objective
POQUONNOCK TREATMENT PLANT	11031	Coagulation	Particulate removal
POQUONNOCK TREATMENT PLANT	11031	pH Adjustment, Pre	Particulate removal
POQUONNOCK TREATMENT PLANT	11031	Rapid Mix	Particulate removal
POQUONNOCK TREATMENT PLANT	11031	Fluoridation	Other
POQUONNOCK TREATMENT PLANT	11031	Inhibitor, Polyphosphate	Corrosion control
POQUONNOCK TREATMENT PLANT	11031	pH Adjustment, Post	Corrosion control
POQUONNOCK TREATMENT PLANT	11031	Filtration, Rapid Sand	Particulate removal
POQUONNOCK TREATMENT PLANT	11031	Flocculation	Particulate removal
POQUONNOCK TREATMENT PLANT	11031	Sedimentation	Particulate removal
POQUONNOCK TREATMENT PLANT	11031	Hypochlorination, Pre	Disinfection
POQUONNOCK TREATMENT PLANT	11031	Hypochlorination, Post	Disinfection
POQUONNOCK TREATMENT PLANT	11031	Inhibitor, Orthophosphate	Corrosion control
POQUONNOCK TREATMENT PLANT	11031	Filtered	Manganese removal

• 1 - 13 of 13

Column Actions

Search