Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MT0000308
PWS Name	POLSON CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	5300
County Served	Lake

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 Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5352435	Returned to Compliance	01-OCT-2025	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	5352434	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	5352108	Returned to Compliance	01-JUL-2008	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	5347306	Returned to Compliance	01-SEP-2005	30-SEP-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	5347506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	5351906	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	5349806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	5349706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	5351806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	5351706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	5349606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	5349506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	5351606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	5351506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	5349406	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	5351406	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	5349306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	5349206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	5351306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	5349106	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	5351206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	5349006	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	5351106	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	5351006	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	5348906	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	5350906	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	5348806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	5350806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	5348706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	5350706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	5348606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	5348506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	5350606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	5350506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	5348406	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	5350406	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	5348306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	5348206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	5350306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	5350206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	5348106	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	5350106	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	5348006	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	5350006	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	5347906	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	5349906	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	5347806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	5347706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	5347606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	5334302	Returned to Compliance	01-JAN-2000	31-DEC-2000	No

1 - 50 of 93

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
5365546	5352435	SOX	State Compliance achieved	06-OCT-2025	State	10/27/2025 2024 Cert Form received on 10/14/2025. KK;
5365544	5352434	SOX	State Compliance achieved	16-JAN-2025	State	01/29/2025 RTC with sample taken 11/27/2024 and submitted to state 01/28/2025 lab failed to submit sample on time GEM
5365309	990297	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365309	751097	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365309	651195	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365309	577795	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365309	5332896	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365309	5347306	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365309	721895	SOX	State Compliance achieved	09-JAN-2009	State	6 months no MCL or MR violations. LRA 1/9/2008
5365109	1484796	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	1484896	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	1484996	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	1485096	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	1485196	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	1485296	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	1485396	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985995	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985895	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985795	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985695	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985595	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985395	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985295	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985195	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	985095	SOX	State Compliance achieved	24-DEC-2008	State	-
5365109	984995	SOX	State Compliance achieved	24-DEC-2008	State	-
5365008	5352108	SOX	State Compliance achieved	21-AUG-2008	State	CCR received following violation letter. System has returned to compliance. EK
5364606	5347506	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5347606	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5347706	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5347806	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5347906	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348006	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348106	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348206	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348306	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348406	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348506	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348606	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348706	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348806	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5348906	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349006	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349106	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349206	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349306	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349406	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349506	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349606	SOX	State Compliance achieved	14-FEB-2006	State	-
5364606	5349706	SOX	State Compliance achieved	14-FEB-2006	State	-

1 - 50 of 93

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE HELL ROARING RESERVOIR	8718	Yes	Intake	Surface water	Permanent	Inactive
WELL 1 1969 GOLF COURSE	3613	Yes	Well	Ground water	Permanent	Inactive
WELL 2 1960 UPPER BOOSTER GWIC 76956	4406	Yes	Well	Ground water	Permanent	Active
WELL 3 1976 DOWNHILL BOOSTER GWIC 76957	4362	Yes	Well	Ground water	Permanent	Active
WELL 4 2000 MAR AT RESERVOIR GWIC 269038	3625	Yes	Well	Ground water	Permanent	Active
WELL 8 GWIC 285108	21356	Yes	Well	Ground water	Permanent	Active
WELL 7 2001 AIRPORT GWIC 194071	14583	Yes	Well	Ground water	Permanent	Active
WELL 6 1999 AIRPORT GWIC 269036	12509	Yes	Well	Ground water	Permanent	Active
WELL 5 2000 APR AT RESERVOIR GWIC 269037	12508	Yes	Well	Ground water	Permanent	Active
COMMON HEADER FOR WELLS 4 & 5	13879	No	Common Headers	-	-	Active
COMMON HEADER 6 & 7	17120	No	Common Headers	-	-	Active
COMMON HEADER FOR WELLS 2 & 3	13880	No	Common Headers	-	-	Inactive
DISTRIBUTION SYSTEM	10736	No	Distribution System/Zone	-	-	Active
HILLSIDE BOOSTER PUMP STATION	14584	No	Pressure Control	-	-	Active
PUMPING FACILITY DEVLIN	14585	No	Pressure Control	-	-	Active
PRESSURE CONTROL SKYLINE	14586	No	Pressure Control	-	-	Active
STORAGE FACILITY HILLSIDE 4,000,00 GAL	12511	No	Storage	-	-	Active
STORAGE FACILITY SKYLINE STEEL 4,000,00	12513	No	Storage	-	-	Active
STORAGE FACILITY CLEARVIEW 4,000,00 GAL	12514	No	Storage	-	-	Active
STORAGE FACILITY WOODBINE 4,000,00 GAL	12515	No	Storage	-	-	Active
STORAGE FACILITY WESTSHORE 4,000,00 GAL	14582	No	Storage	-	-	Active
STORAGE FACILITY HILLCREST 4,000,00 GAL	19753	No	Storage	-	-	Active
STORAGE FACILITY SKYLINE CONCRETE 4,000,	19754	No	Storage	-	-	Active
STORAGE FACILITY 1 1920-CAP 500000 GAL	12512	No	Storage	-	-	Inactive
TREATMENT PLANT 5 FOR WELL 4 5	12510	No	Treatment Plant	-	-	Active
TREATMENT PLANT 6 FOR WELLS 6 7	13881	No	Treatment Plant	-	-	Active
TREATMENT PLANT 7 FOR WELL 8	24002	No	Treatment Plant	-	-	Active
TREATMENT PLANT 4 FOR WELL 3	2582	No	Treatment Plant	-	-	Active
TREATMENT PLANT 3 FOR WELL 2	3188	No	Treatment Plant	-	-	Active
TP 1 FOR HELL ROARING RESERVOIR	2831	No	Treatment Plant	-	-	Inactive
TREATMENT PLANT 2 FOR WELL 1	3038	No	Treatment Plant	-	-	Inactive

1 - 31 of 31

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT 5 FOR WELL 4 5	12510	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT 5 FOR WELL 4 5	12510	Hypochlorination, Post	Disinfection
TREATMENT PLANT 5 FOR WELL 4 5	12510	Microscreening	Particulate removal
TREATMENT PLANT 6 FOR WELLS 6 7	13881	Filtration, Pressure Sand	Iron removal
TREATMENT PLANT 6 FOR WELLS 6 7	13881	Gaseous Chlorination, Pre	Disinfection
TREATMENT PLANT 6 FOR WELLS 6 7	13881	Reducing Agents	De-chlorination
TREATMENT PLANT 7 FOR WELL 8	24002	Hypochlorination, Post	Disinfection
TREATMENT PLANT 7 FOR WELL 8	24002	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT 4 FOR WELL 3	2582	Hypochlorination, Post	Disinfection
TREATMENT PLANT 4 FOR WELL 3	2582	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT 3 FOR WELL 2	3188	Hypochlorination, Post	Disinfection
TREATMENT PLANT 3 FOR WELL 2	3188	Inhibitor, Polyphosphate	Corrosion control

1 - 12 of 12

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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