Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MT0000271
PWS Name	LEWISTOWN CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	5923
County Served	Fergus

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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4484702	Returned to Compliance	01-JUL-2025	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	4484685	Returned to Compliance	15-NOV-2017	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4484684	Returned to Compliance	01-JUL-2017	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	4484628	Returned to Compliance	23-NOV-2016	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484626	Returned to Compliance	01-MAR-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484625	Returned to Compliance	01-DEC-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484624	Known	01-OCT-2015	31-OCT-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484623	Known	01-SEP-2015	30-SEP-2015	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4484622	Returned to Compliance	01-JUL-2015	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484621	Known	01-NOV-2014	30-NOV-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484620	Known	01-OCT-2014	31-OCT-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4484619	Known	01-SEP-2014	30-SEP-2014	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	4484629	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	4484632	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	4484656	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	4484655	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	4484654	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	4484653	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4484652	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	4484651	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	4484650	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	4484649	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	4484648	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	4484647	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4484646	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	4484645	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	4484644	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	4484643	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	4484642	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	4484641	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	4484640	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	4484638	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	4484637	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	4484636	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	4484683	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	4484682	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	4484681	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	4484680	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	4484679	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	4484678	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	4484677	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	4484676	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	4484675	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	4484674	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	4484673	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	4484672	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	4484671	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	4484670	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	4484669	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	4484668	Returned to Compliance	01-JAN-2014	31-DEC-2016	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
5082510	4484702	SOX	State Compliance achieved	17-JUL-2025	State	10/3/2025 2024 CCR received on 10/3/2025. KK;
5082421	4484685	SOX	State Compliance achieved	02-JAN-2018	State	-
5082416	4484684	SOX	State Compliance achieved	02-AUG-2017	State	8/2/2017 CCR received, SJP;
5082414	4484633	SOX	State Compliance achieved	14-MAR-2017	State	-
5082414	4484634	SOX	State Compliance achieved	14-MAR-2017	State	-
5082414	4484635	SOX	State Compliance achieved	14-MAR-2017	State	-
5082414	4484636	SOX	State Compliance achieved	14-MAR-2017	State	-
5082414	4484637	SOX	State Compliance achieved	14-MAR-2017	State	-
5082414	4484638	SOX	State Compliance achieved	14-MAR-2017	State	-
5082414	4484639	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484640	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484641	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484642	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484643	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484644	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484645	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484646	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484647	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484648	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484649	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484650	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484651	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484652	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484653	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484654	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484655	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484656	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484657	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484658	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484659	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484660	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484661	SOX	State Compliance achieved	14-MAR-2017	State	-
5082405	4484662	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484663	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484664	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484665	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484666	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484667	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484668	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484669	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484670	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484671	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484672	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484673	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484674	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484675	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484676	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484677	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484678	SOX	State Compliance achieved	14-MAR-2017	State	-
5082408	4484679	SOX	State Compliance achieved	14-MAR-2017	State	-

1 - 50 of 161

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SPRING BIG SPRING GWIC 1883	16247	Yes	Spring	Ground water	Permanent	Active
BIG SPRINGS WELL	3308	Yes	Well	Ground water	Permanent	Inactive
DISTRIBUTION SYSTEM	9949	No	Distribution System/Zone	-	-	Active
PRESSURE CONTROL	16245	No	Pressure Control	-	-	Inactive
ASH STREET LOWER BOOSTER STATION 1	16246	No	Pump Facility	-	-	Active
W BROADWAY UPPER BOOSTER STATION 2	18011	No	Pump Facility	-	-	Active
CASTLE RIDGE BOOSTER STATION 3	24550	No	Pump Facility	-	-	Active
CASTLE RIDGE ACRES BOOSTER STATION 3	21323	No	Pump Facility	-	-	Inactive
STORAGE FACILITY 2 UPPER ZONE 1.5 MG	12938	No	Storage	-	-	Active
BIG SPRINGS TP STORAGE PIPE	24345	No	Storage	-	-	Active
STORAGE FACILITY 1 LOWER ZONE 1MG	543	No	Storage	-	-	Active
TRANSMISSION MAIN FROM SPRING TO TOWN	16244	No	Transmission Main (Manifold)	-	-	Inactive
BIG SPRINGS TREATMENT PLANT	24344	No	Treatment Plant	-	-	Active
ASH STREET TP BOOSTER CHLORINATION	24548	No	Treatment Plant	-	-	Active
CASTLE RIDGE TP BOOSTER CHLORINATION	24549	No	Treatment Plant	-	-	Active
TREATMENT PLANT TEMPORARY	21823	No	Treatment Plant	-	-	Inactive

1 - 16 of 16

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT TEMPORARY	21823	Hypochlorination, Post	Disinfection
BIG SPRINGS TREATMENT PLANT	24344	Hypochlorination, Post	Disinfection
ASH STREET TP BOOSTER CHLORINATION	24548	Hypochlorination, Post	Disinfection
CASTLE RIDGE TP BOOSTER CHLORINATION	24549	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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