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PWS ID	MT0000196
PWS Name	EAST HELENA CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2114
County Served	Lewis and Clark

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1533931	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
TT	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	1533930	Returned to Compliance	04-NOV-2022	-	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1533929	Returned to Compliance	01-JUL-2021	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1533927	Returned to Compliance	30-DEC-2015	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1533917	Returned to Compliance	01-JUL-2013	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1533708	Returned to Compliance	01-JUL-2008	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1533605	Returned to Compliance	14-AUG-2003	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1533404	Returned to Compliance	14-AUG-2003	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	1532696	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	1532496	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	1532196	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	1532896	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	1532996	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	1533096	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	1531996	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	1532296	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	1532096	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	1532596	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	1532396	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	1532796	Returned to Compliance	01-JAN-1994	31-DEC-1994	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1376596	Returned to Compliance	01-OCT-1993	31-DEC-1993	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	292594	Returned to Compliance	01-JUL-1993	31-DEC-1993	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
4842037	1533931	SIE	State Public Notification requested	18-JUL-2025	State	-
4842035	1533930	SOX	State Compliance achieved	24-JAN-2023	State	VL was SOXed with OCCT individual activity report from 01/24/2023 outlining corrosion control rationale - JD 05/22/2025
4842032	1533929	SOX	State Compliance achieved	05-AUG-2021	State	CCR 2020 received on 8/5/21-MRF(5/25/22)
4842028	1533927	SOX	State Compliance achieved	01-FEB-2016	State	received 02/05/2016. JP
4842018	1533917	SOX	State Compliance achieved	19-JUL-2013	State	-
4841708	1532396	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532596	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532696	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532796	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532896	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532996	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1533096	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1533708	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532296	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532196	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532096	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1531996	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1376596	SOX	State Compliance achieved	13-AUG-2008	State	-
4841708	1532496	SOX	State Compliance achieved	13-AUG-2008	State	-
4841004	1533404	SOX	State Compliance achieved	02-AUG-2006	State	Sampled in 2006.
4841405	1533605	SOX	State Compliance achieved	02-AUG-2006	State	Multiple SOX actions - JD 10/16/2025
4841801	292594	SOX	State Compliance achieved	17-OCT-2000	State	completed baseline. No more WQP.

1 - 22 of 22

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 4 MCCLELLAN	19509	Yes	Well	Ground water	Permanent	Active
WELL 2 WYLIE MIDDLE GWIC 62116	5906	Yes	Well	Ground water	Permanent	Active
WELL 1 WYLIE NORTH GWIC 61839	5646	Yes	Well	Ground water	Permanent	Active
WELL 3 WYLIE SOUTH GWIC 62125	5375	Yes	Well	Ground water	Permanent	Active
WYLIE WELL 4 GWIC 321623	24259	Yes	Well	Ground water	Permanent	Active
WELL 5 MCCLELLAN	19510	Yes	Well	Ground water	Permanent	Active
COMMON HEADER WYLIE WELLS	18345	No	Common Headers	-	-	Active
COMMON HEADER FOR MCCLELLAN WELLS	20846	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	8389	No	Distribution System/Zone	-	-	Active
INFILTRATION GALLERY 1 MCCLELLAN CREEK	12831	No	Other	-	-	Inactive
INFILTRATION GALLERY 2 MCCLELLAN CREEK	15997	No	Other	-	-	Inactive
STORAGE WYLIE WELLS 1,000,000 GAL	14623	No	Storage	-	-	Active
STORAGE 1M MCCLELLAN	24333	No	Storage	-	-	Active
STORAGE 2 MCCLELLAN CREEK 300,000 GAL	14742	No	Storage	-	-	Inactive
STORAGE FACILITY FOR WELLS 1 2 3	2082	No	Storage	-	-	Inactive
STORAGE 1 MCCLELLAN CREEK 250,000 GAL	353	No	Storage	-	-	Inactive
TRANSMISSION MAIN FROM MCCLELLAN ST	18346	No	Transmission Main (Manifold)	-	-	Active
TP FOR WYLIE WELL 1 2 3 4	2724	No	Treatment Plant	-	-	Active
TREATMENT PLANT MCCLELLAN	2892	No	Treatment Plant	-	-	Active

1 - 19 of 19

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR WYLIE WELL 1 2 3 4	2724	Gaseous Chlorination, Post	Disinfection
TP FOR WYLIE WELL 1 2 3 4	2724	Inhibitor, Orthophosphate	Corrosion control
TREATMENT PLANT MCCLELLAN	2892	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT MCCLELLAN	2892	Inhibitor, Orthophosphate	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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