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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	04350123A800032025	Returned to Compliance	01-MAR-2025	31-MAR-2025	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	043501252500012025	Open	01-JAN-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	043501252500072024	Returned to Compliance	01-JUL-2024	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	043501252500012024	Returned to Compliance	01-JAN-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04350124B8000102023	Returned to Compliance	01-OCT-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04350123A800092023	Returned to Compliance	01-SEP-2023	30-SEP-2023	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04350125A800042016	Returned to Compliance	01-APR-2016	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	0435012350600102013	Returned to Compliance	01-OCT-2013	-	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
0435012FJ12052543011	043501252500012025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to collect a lead/copper set of 10 samples due every 6-months.
0435012OX09292542878	0435012350600102013	SOX	State Compliance achieved	29-SEP-2025	State	RTC, sample analyses received for samples collected on 9/29/25.
0435012OX09252542851	04350125A800042016	SOX	State Compliance achieved	25-SEP-2025	State	RTC - Site sample plan submitted and approved.
0435012FJ04182542110	043501252500072024	SFJ	State Formal Notice of Violation issued	18-APR-2025	State	NOV issued for failure to collect a 6-month quarterly sample for a set of 10 samples. During the July-December 2024, the school was sampled for 5 samples, 10 were required.
0435012OX04012542636	04350123A800032025	SOX	State Compliance achieved	01-APR-2025	State	March 2025 RTCR Monitoring. Return To Compliance. Full sample set collected 04/01/2025.
0435012OX09262442877	043501252500012024	SOX	State Compliance achieved	26-SEP-2024	State	RTC, sample analyses received for samples collected on 9/26/24.
0435012OX11302340806	04350124B8000102023	SOX	State Compliance achieved	30-NOV-2023	State	October 2023 RTCR Reporting. Return To Compliance. Lab results submitted LATE 11/30/2023.
0435012OX11072340485	04350123A800092023	SOX	State Compliance achieved	07-NOV-2023	State	September 2023 RTCR Monitoring. Return To Compliance. Full sample set collected 11/07/2023 with no violations.

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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
NN0403047 NTUA Lukachukai CWS	0435012GW001	Yes	Consecutive Connection	Ground water	Permanent	Active
Entry Point to Distribution	0435012EP001	No	Common Headers	-	-	Active
Lukachukai School Distribution	0435012DS001	No	Distribution System/Zone	-	-	Active
LCS Booster	0435012PF001	No	Pump Facility	-	-	Active
LCS Tank 1	0435012ST001	No	Storage	-	-	Active

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Treatment Processes

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

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