Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MT0000241
PWS Name	HELENA WATER SYSTEM
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	32091
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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1183487	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1183486	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1183485	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1183478	Returned to Compliance	01-OCT-2011	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	1183483	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1179009	Returned to Compliance	01-OCT-2008	31-OCT-2008	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1178508	Returned to Compliance	01-SEP-2008	30-SEP-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1178408	Returned to Compliance	01-SEP-2008	30-SEP-2008	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1178108	Returned to Compliance	01-MAY-2008	31-MAY-2008	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1178008	Returned to Compliance	01-MAY-2008	31-MAY-2008	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1183484	Known	01-JAN-2008	31-DEC-2016	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1177908	Returned to Compliance	01-OCT-2007	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1177807	Returned to Compliance	01-OCT-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1177707	Returned to Compliance	01-OCT-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1177507	Returned to Compliance	01-APR-2006	30-JUN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1177607	Returned to Compliance	01-APR-2006	30-JUN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1177307	Returned to Compliance	01-JAN-2006	31-MAR-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1177407	Returned to Compliance	01-JAN-2006	31-MAR-2006	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	1173706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	1173806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1178609	Returned to Compliance	01-OCT-2001	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1033198	Returned to Compliance	01-AUG-1998	31-AUG-1998	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	712197	Returned to Compliance	01-MAY-1997	31-MAY-1997	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	971695	Returned to Compliance	01-JAN-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
5310628	1183486	SOX	State Compliance achieved	10-MAY-2023	State	SOX'D WITH 2QT23 (5/10/23) SAMPLE SET WHICH BROUGHT LRAA BELOW 60 UG/L-MRF(5/30/23)
5310631	1183487	SOX	State Compliance achieved	10-MAY-2023	State	SOX'D WITH 2QT23 (5/10/23) SAMPLE SET WHICH BROUGHT LRAA BELOW 60 UG/L-MRF(5/30/23)
5310625	1183485	SOX	State Compliance achieved	10-MAY-2023	State	SOX'D WITH 2QT23 (5/10/23) SAMPLE SET WHICH BROUGHT LRAA BELOW 60 UG/L-MRF(5/30/23)
5310618	1183483	SIE	State Public Notification requested	24-JAN-2014	State	-
5310613	1183478	SOX	State Compliance achieved	07-NOV-2011	State	-
5309208	1178508	SOX	State Compliance achieved	25-SEP-2009	State	-
5310509	1177908	SOX	State Compliance achieved	16-JUL-2009	State	-
5308408	1178408	SOX	State Compliance achieved	26-FEB-2009	State	System sampled out of MCL. LRA 2/26/2009
5310309	1033198	SOX	State Compliance achieved	06-JAN-2009	State	6 months no MCL or MR violations. LRA 1/6/2009
5310309	712197	SOX	State Compliance achieved	06-JAN-2009	State	6 months no MCL or MR violations. LRA 1/6/2009
5309909	1179009	SOX	State Compliance achieved	17-DEC-2008	State	RTC JW
5309909	1178008	SOX	State Compliance achieved	17-DEC-2008	State	RTC JW
5309909	1178108	SOX	State Compliance achieved	17-DEC-2008	State	RTC JW
5309409	1178609	SIA	State Violation/Reminder Notice	22-OCT-2008	State	-
5306907	1177707	SOX	State Compliance achieved	03-AUG-2007	State	Samples misplaced. J Jose
5306907	1177607	SOX	State Compliance achieved	03-AUG-2007	State	Samples misplaced. J Jose
5306907	1177507	SOX	State Compliance achieved	03-AUG-2007	State	Samples misplaced. J Jose
5306907	1177407	SOX	State Compliance achieved	03-AUG-2007	State	Samples misplaced. J Jose
5306907	1177807	SOX	State Compliance achieved	03-AUG-2007	State	Samples misplaced. J Jose
5306907	1177307	SOX	State Compliance achieved	03-AUG-2007	State	Samples misplaced. J Jose
5306206	1173706	SOX	State Compliance achieved	28-FEB-2006	State	8/9/05 sample received 2/21/06
5306206	1173806	SOX	State Compliance achieved	28-FEB-2006	State	8/9/05 sample received 2/21/06
5305604	971695	SOX	State Compliance achieved	20-OCT-2003	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE 3 BEAVER CREEK TMSWTP	13507	Yes	Intake	Surface water	Permanent	Active
WELL 4 LOW ZONE WELL	15881	Yes	Well	Ground water	Permanent	Inactive
WELL 6 OROFINO	15882	Yes	Well	Ground water under the influence of surface water	Permanent	Inactive
WELL 1 EUREKA WELL	5692	Yes	Well	Ground water	Permanent	Active
WELL 3 TMTP RIMINI ROAD	6435	Yes	Well	Ground water under the influence of surface water	Permanent	Active
WELL 2 TEN MILE TREATMENT PLANT	5755	Yes	Well	Ground water under the influence of surface water	Permanent	Active
REGULATING RESERVOIR MRSWTP	19465	Yes	Reservoir	Surface water	Permanent	Inactive
RESERVOIR CHESSMAN	14913	Yes	Reservoir	Surface water	Permanent	Active
RESERVOIR SCOTT	14912	Yes	Reservoir	Surface water	Permanent	Active
INTAKE FROM CANYON FERRY TO RS004 MRSWTP	15890	Yes	Intake	Surface water	Permanent	Inactive
INTAKE HELENA REGULATING RESERVOIR	9719	Yes	Intake	Surface water	Permanent	Active
INTAKE 2 TEN MILE CREEK TMSWTP	7869	Yes	Intake	Surface water	Permanent	Active
INTAKE 6 WALKER CREEK TMSWTP	13510	Yes	Intake	Surface water	Permanent	Active
INTAKE 5 MOOSE CREEK TMSWTP	13509	Yes	Intake	Surface water	Permanent	Active
INTAKE 4 MINNEHAHA CREEK TMSWTP	13508	Yes	Intake	Surface water	Permanent	Active
COMMON HEADER TMSWTP	15123	No	Common Headers	-	-	Active
COMMON HEADER FOR MRTP	15889	No	Common Headers	-	-	Inactive
COMMON HEADER FOR CHESSMAN TO BEAVER CRE	16880	No	Common Headers	-	-	Inactive
CLEAR WELL CONTACT BASIN MRSWTP	15124	No	Clear Well	-	-	Inactive
CLEAR WELL 2 MRTP	15887	No	Clear Well	-	-	Inactive
CLEAR WELL CONTACT BASIN TMSWTP	15888	No	Clear Well	-	-	Inactive
CLEARWELL CONTACT BASIN MRSWTP	18676	No	Clear Well	-	-	Inactive
DISTRIBUTION SYSTEM	8893	No	Distribution System/Zone	-	-	Active
PRESSURE CONTROL FORREST ESTATES PS	17584	No	Pressure Control	-	-	Inactive
HALE PUMPING STATION	16881	No	Pump Facility	-	-	Active
FOREST ESTATES BOOSTER	16882	No	Pump Facility	-	-	Active
KNOBHILL PUMP FACILITY	16884	No	Pump Facility	-	-	Active
DALHAUSEN MALBEN PUMP FACILITY	16885	No	Pump Facility	-	-	Active
REEDERS VILLAGE BOOSTER	16886	No	Pump Facility	-	-	Active
MISSOURI RIVER TP HIGH PRESSURE PF	18677	No	Pump Facility	-	-	Active
EUREKA PUMPING FACILITY	19464	No	Pump Facility	-	-	Active
WOOLSTON 2	14915	No	Storage	-	-	Active
STORAGE DALHAUSEN/MALBEN	15883	No	Storage	-	-	Active
STORAGE WINNIE 1	15884	No	Storage	-	-	Active
STORAGE WINNIE 2	15885	No	Storage	-	-	Active
STORAGE KNOB HILL EASTSIDE TANK	15886	No	Storage	-	-	Active
LOWER HALE RESERVOIR	2134	No	Storage	-	-	Active
UPPER HALE RESERVOIR	2196	No	Storage	-	-	Active
WEST SIDE TANK	24562	No	Storage	-	-	Active
STORAGE WOOLSTON 1 INACTIVE	14914	No	Storage	-	-	Inactive
WESTSIDE TANK	19466	No	Storage	-	-	Inactive
TREATMENT PLANT DALHAUSEN PF	17582	No	Treatment Plant	-	-	Active
TREATMENT PLANT KNOB HILL PF	17583	No	Treatment Plant	-	-	Active
TP FOR TEN MILE WATER TREATMENT PLANT	2428	No	Treatment Plant	-	-	Active
TP FOR EUREKA WELL	3006	No	Treatment Plant	-	-	Active
TREATMENT PLANT MRSWTP	3063	No	Treatment Plant	-	-	Active
TREATMENT PLANT BEAVER CREEK	16879	No	Treatment Plant	-	-	Inactive
TP FOR ORO FINO	2493	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT BEAVER CREEK	16879	Permanganate	Taste / odor control
TREATMENT PLANT DALHAUSEN PF	17582	Hypochlorination, Post	Disinfection
TREATMENT PLANT KNOB HILL PF	17583	Hypochlorination, Post	Disinfection
TP FOR TEN MILE WATER TREATMENT PLANT	2428	Flocculation	Particulate removal
TP FOR TEN MILE WATER TREATMENT PLANT	2428	Coagulation	Particulate removal
TP FOR TEN MILE WATER TREATMENT PLANT	2428	Filtration, Rapid Sand	Particulate removal
TP FOR TEN MILE WATER TREATMENT PLANT	2428	Activated Carbon, Powdered	Taste / odor control
TP FOR TEN MILE WATER TREATMENT PLANT	2428	Inhibitor, Orthophosphate	Corrosion control
TP FOR TEN MILE WATER TREATMENT PLANT	2428	Hypochlorination, Post	Disinfection
TP FOR ORO FINO	2493	Gaseous Chlorination, Post	Disinfection
TP FOR EUREKA WELL	3006	Hypochlorination, Post	Disinfection
TREATMENT PLANT MRSWTP	3063	Flocculation	Particulate removal
TREATMENT PLANT MRSWTP	3063	Rapid Mix	Particulate removal
TREATMENT PLANT MRSWTP	3063	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT MRSWTP	3063	Hypochlorination, Post	Disinfection
TREATMENT PLANT MRSWTP	3063	Activated Carbon, Powdered	Taste / odor control
TREATMENT PLANT MRSWTP	3063	Sedimentation	Particulate removal
TREATMENT PLANT MRSWTP	3063	Coagulation	Particulate removal

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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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