---

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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	010900502295072020	Returned to Compliance	01-JUL-2020	30-SEP-2020	Yes
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	01090054B800012020	Returned to Compliance	01-JAN-2020	-	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	010900526310042011	Returned to Compliance	01-APR-2011	30-APR-2011	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
0109005OX11172023156	010900502295072020	EOX	Federal Compliance achieved	17-NOV-2020	Region	The PWS submitted their November TTHM results showing that all LRAAs are in compliance now. The PWS has a plan for managing their water tank to try and minimize TTHM formationa and possibly reduce it through volatiiization for the short term until their
0109005OX05262023082	01090054B800012020	EOX	Federal Compliance achieved	26-MAY-2020	Region	Tribe responded to my email with the missing sample results.
0109005OX02161222740	010900526310042011	EOX	Federal Compliance achieved	16-FEB-2012	Region	-

• 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
Norwich Public Utilities	0109005SW001	Yes	Consecutive Connection	Surface water	Permanent	Active
Groton Utilities	0109005SW002	Yes	Consecutive Connection	Surface water	Permanent	Active
Entry Point	0109005EP001	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	0109005DS001	No	Distribution System/Zone	-	-	Active
High Pressure	0109005DS002	No	Distribution System/Zone	-	-	Active
Control Building	0109005CH001	No	Other	-	-	Active
Booster Station	0109005PF001	No	Pump Facility	-	-	Active
Crow Hill Storage Tank	0109005ST001	No	Storage	-	-	Active

• 1 - 8 of 8

Column Actions

Search

---

Treatment Processes

Go

Rows1510152025501001000All

Actions

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

Column Actions

Search