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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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	13	Returned to Compliance	01-JUL-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12	Returned to Compliance	01-JUL-2020	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	11	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	10	Returned to Compliance	01-APR-2019	30-APR-2019	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	9	Returned to Compliance	01-OCT-2018	-	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	8	Returned to Compliance	01-MAY-2018	31-MAY-2018	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	7	Known	01-JUL-2016	31-JUL-2016	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	6	Known	01-JUN-2016	30-JUN-2016	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	5	Known	01-MAY-2016	31-MAY-2016	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	3	Returned to Compliance	01-APR-2016	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	4	Known	01-MAR-2016	31-MAR-2016	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2	Returned to Compliance	01-OCT-2015	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1	Returned to Compliance	01-JAN-2015	-	No

• 1 - 13 of 13

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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
15	13	SOX	State Compliance achieved	11-JUL-2022	State	-
14	12	SOX	State Compliance achieved	07-AUG-2020	State	-
11	11	SOX	State Compliance achieved	30-MAR-2020	State	-
8	9	SOX	State Compliance achieved	13-AUG-2019	State	-
9	10	SFJ	State Formal Notice of Violation issued	27-JUN-2019	State	-
13	8	SOX	State Compliance achieved	30-JUN-2018	State	-
5	4	SO8	State Other	03-FEB-2017	State	-
5	6	SO8	State Other	03-FEB-2017	State	-
5	5	SO8	State Other	03-FEB-2017	State	-
5	7	SO8	State Other	03-FEB-2017	State	-
4	3	SOX	State Compliance achieved	30-SEP-2016	State	-
4	1	SOX	State Compliance achieved	30-SEP-2016	State	-
4	2	SOX	State Compliance achieved	30-SEP-2016	State	-

• 1 - 13 of 13

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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
RIO BLANCO RIVER	3333	Yes	Intake	Surface water	Permanent	Active
YAHUECAS	3334	No	Distribution System/Zone	-	-	Active
YAHUECAS	3332	No	Treatment Plant	-	-	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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