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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.

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Violations

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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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	762	Open	02-JUL-2025	-	No
MR	Monitoring of Treatment (SWTR-Unfilt/GWR)	Ground Water Rule	Groundwater Rule	759	Returned to Compliance	01-NOV-2024	30-NOV-2024	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	761	Returned to Compliance	17-OCT-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	758	Returned to Compliance	30-DEC-2020	-	No
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	757	Open	15-SEP-2018	-	No
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	756	Open	05-SEP-2018	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	743	Returned to Compliance	30-DEC-2017	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	741	Returned to Compliance	14-APR-2015	-	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	742	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	740	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	714	Returned to Compliance	05-NOV-2014	-	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	713	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	712	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	710	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	709	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	305	Returned to Compliance	01-JUL-2005	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	100	Returned to Compliance	01-JAN-2000	31-JAN-2000	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	8847288	Known	14-MAR-1988	13-MAR-1989	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	8755587	Returned to Compliance	26-MAY-1987	25-AUG-1987	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	8621086	Known	04-JUN-1986	03-JUN-1987	Yes

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
545	761	SIE	State Public Notification requested	17-MAR-2025	State	-
542	759	SOX	State Compliance achieved	22-JAN-2025	State	RTC 01/08/2025. SOX ENTERED 01/22/2025. EK
539	758	SOX	State Compliance achieved	17-MAY-2022	State	system submitted LCN for 2022 samples. --DCS
537	743	SOX	State Compliance achieved	26-OCT-2018	State	RTC achieved 01-15-18 SOX entered 10-29-18
534	713	SO0	State no longer subject to Rule	17-SEP-2015	State	PWSS no longer issuing nitrate violations to consecutive systems. --MS 9/17/2015
534	740	SO0	State no longer subject to Rule	17-SEP-2015	State	PWSS no longer issuing nitrate violations to consecutive systems. --MS 9/17/2015
534	742	SO0	State no longer subject to Rule	17-SEP-2015	State	PWSS no longer issuing nitrate violations to consecutive systems. --MS 9/17/2015
534	712	SO0	State no longer subject to Rule	17-SEP-2015	State	PWSS no longer issuing nitrate violations to consecutive systems. --MS 9/17/2015
530	741	SOX	State Compliance achieved	16-APR-2015	State	-
525	714	SOX	State Compliance achieved	06-NOV-2014	State	-
519	710	SOX	State Compliance achieved	12-DEC-2011	State	sample # 571654BT from Hiawatha's TP001 is 2nd consecutive quarterly sample to show nitrate results < 10 mg/L. --DCS 3/11/2013
519	709	SOX	State Compliance achieved	12-DEC-2011	State	sample # 571654BT from Hiawatha's TP001 is 2nd consecutive quarterly sample to show nitrate results < 10 mg/L. --DCS 3/11/2013
505	305	SOX	State Compliance achieved	13-JUL-2005	State	-
509	100	SOX	State Compliance achieved	29-FEB-2000	State	RETURNED TO COMPLIANCE AFTER TCR MCL
3E88	8847288	SIF	State Public Notification received	30-SEP-1988	State	-
4E87	8755587	SOX	State Compliance achieved	30-SEP-1987	State	-
1E86	8621086	SIA	State Violation/Reminder Notice	30-SEP-1986	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC FROM HIAWATHA, CITY OF	5835	Yes	Consecutive Connection	Ground water	Permanent	Active
WELL 06	93	Yes	Well	Ground water	Permanent	Active
WELL 05	92	Yes	Well	Ground water	Permanent	Active
WELL 03	1044	Yes	Well	Ground water	Permanent	Active
WELL 02	1043	Yes	Well	Ground water	Permanent	Active
WELL 04	1041	Yes	Well	Ground water	Permanent	Active
WELL 01	1035	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION	4573	No	Distribution System/Zone	-	-	Active
PUMP FACILITY	8361	No	Pump Facility	-	-	Active
SYSTEM LOCATION	11380	No	Sampling Station	-	-	Active
STORAGE TANK 01	6814	No	Storage	-	-	Active
STORAGE TANK 02	10780	No	Storage	-	-	Inactive
TP001	3584	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP001	3584	Gaseous Chlorination, Post	Disinfection
TP001	3584	4-Log Treatment of Viruses	Disinfection

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