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PWS ID	MT0000253
PWS Name	HUNGRY HORSE CO WATER AND SEWER DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1135
County Served	Flathead

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	35617	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	35613	Returned to Compliance	01-OCT-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	35612	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	35610	Known	01-JAN-2011	31-DEC-2019	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	33508	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	33609	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	35409	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	35309	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	35209	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	35109	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	35009	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	34909	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	34809	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	34709	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	34609	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	34509	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	34409	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	34309	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	34209	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	34109	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	34009	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	33909	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	33809	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	33709	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	35609	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	35509	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	32901	Returned to Compliance	01-FEB-2001	28-FEB-2001	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	101	Returned to Compliance	01-OCT-2000	31-OCT-2000	Yes

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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
5490130	35617	SOX	State Compliance achieved	17-JUL-2025	State	7/21/2025 2024 CCR received on 7/17/2025, KK;
5490117	35612	SOX	State Compliance achieved	05-MAR-2025	State	03/14/2025 RTC with submission 03/05/2025 GEM
5490119	35613	SOX	State Compliance achieved	05-MAR-2025	State	03/14/2025 RTC with submission 03/05/2025 GEM
5490110	34009	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34109	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34209	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34309	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34409	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34509	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34609	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34709	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34809	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	34909	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35009	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35109	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35209	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35309	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35409	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35509	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	35609	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	33909	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	33809	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	33609	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5490110	33709	SIF	State Public Notification received	04-MAR-2010	State	p/n received 2/16/2010.
5489809	101	SOX	State Compliance achieved	04-DEC-2008	State	No MCL or MR violations in 6 months. SWP 12/04/2008
5489809	32901	SOX	State Compliance achieved	04-DEC-2008	State	No MCL or MR violations in 6 months. SWP 12/04/2008
5489708	33508	SOX	State Compliance achieved	19-SEP-2008	State	6/30/08 received late sample. EK

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 3 GWIC 85175	18310	Yes	Well	Ground water	Permanent	Active
WELL 1 PRODUCTION GWIC 85170	6753	Yes	Well	Ground water	Permanent	Active
WELL 2 GWIC 85157	4372	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	10300	No	Distribution System/Zone	-	-	Active
STORAGE FACILITY 2 100,000 GAL	18311	No	Storage	-	-	Active
STORAGE FACILITY 1 100,000 GAL	2221	No	Storage	-	-	Active

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Treatment Processes

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

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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