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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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	43824	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	92706	Returned to Compliance	01-NOV-2005	30-NOV-2005	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	353791	Returned to Compliance	01-OCT-1990	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	353691	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	353891	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	353991	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	354091	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	353591	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	353391	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	353291	Returned to Compliance	01-APR-1988	31-MAR-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	353491	Returned to Compliance	01-APR-1988	31-MAR-1991	No

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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
689209	43824	SIF	State Public Notification received	01-MAR-2024	State	-
689206	92706	SIF	State Public Notification received	23-JUN-2006	State	-
356191	353491	SIF	State Public Notification received	07-MAY-1992	State	-
145591	353591	SIF	State Public Notification received	07-MAY-1992	State	-
455691	353691	SIF	State Public Notification received	07-MAY-1992	State	-
502391	353891	SIF	State Public Notification received	07-MAY-1992	State	-
260191	353991	SIF	State Public Notification received	07-MAY-1992	State	-
197891	354091	SIF	State Public Notification received	07-MAY-1992	State	-
16791	353391	SIF	State Public Notification received	07-MAY-1992	State	-
85991	353291	SIF	State Public Notification received	07-MAY-1992	State	-
222191	353791	SIF	State Public Notification received	07-MAY-1992	State	-

• 1 - 11 of 11

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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 MAHASKA RURAL WATER (IA6273901)	34601	Yes	Consecutive Connection	Ground water	Emergency	Inactive
WELL #4 (2011)	33105	Yes	Well	Ground water	Permanent	Active
WELL #2A (2002)	28322	Yes	Well	Ground water	Permanent	Active
WELL #3 (1989)	12533	Yes	Well	Ground water	Permanent	Active
WELL #1 (1960)	10977	Yes	Well	Ground water	Permanent	Active
PLUG #2 (1966)	8283	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	2986	No	Distribution System/Zone	-	-	Active
GENERAL PWS FACILITY	24636	No	Other	-	-	Active
RIVER PUMP STATION	35393	No	Pump Facility	-	-	Active
IN-PLANT PUMP STATION	35394	No	Pump Facility	-	-	Active
S/EP FRM #1-60, #2A-02, #3-89, & #4-11	5891	No	Sampling Station	-	-	Active
ELEVATED STORAGE-0.15MG	26854	No	Storage	-	-	Active
ELEVATED STORAGE-0.05MG	31636	No	Storage	-	-	Active
TREATMENT PLANT #1	18128	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT #1	18128	Innovative	Disinfection
TREATMENT PLANT #1	18128	Innovative	Disinfection
TREATMENT PLANT #1	18128	Innovative	Iron removal
TREATMENT PLANT #1	18128	Innovative	Iron removal
TREATMENT PLANT #1	18128	Innovative	Iron removal

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