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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	8410309	Open	01-JUL-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	8410308	Returned to Compliance	01-MAY-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8410307	Returned to Compliance	01-MAR-2023	31-MAR-2023	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	8410305	Returned to Compliance	01-APR-2005	30-APR-2005	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	8410205	Returned to Compliance	01-APR-2005	30-APR-2005	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	411401	Returned to Compliance	01-JUN-2001	30-JUN-2001	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	105994	Known	01-DEC-1993	31-DEC-1993	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	102094	Known	01-OCT-1993	31-OCT-1993	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	117094	Known	01-OCT-1993	31-OCT-1993	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	406893	Known	01-SEP-1993	30-SEP-1993	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	411193	Known	01-SEP-1993	30-SEP-1993	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	407591	Known	01-AUG-1991	31-AUG-1991	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	403991	Known	01-AUG-1991	31-AUG-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
1220214	8410307	SIF	State Public Notification received	18-JUN-2025	State	-
1220213	8410308	SOX	State Compliance achieved	20-DEC-2024	State	-
1220209	411401	SOX	State Compliance achieved	26-MAY-2009	State	-
1220209	8410205	SOX	State Compliance achieved	26-MAY-2009	State	-
1220209	8410305	SOX	State Compliance achieved	26-MAY-2009	State	-
406591	403991	SIE	State Public Notification requested	26-SEP-1991	State	AR0000085914039*

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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
OUACHITA RIVER	2504	Yes	Intake	Surface water	Permanent	Active
ARKADELPHIA WATERWORKS	2690	No	Distribution System/Zone	-	-	Active
POTW	326	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
POTW	326	pH Adjustment, Post	Corrosion control
POTW	326	Filtration, Rapid Sand	Particulate removal
POTW	326	Sedimentation	Particulate removal
POTW	326	Flocculation	Particulate removal
POTW	326	Coagulation	Particulate removal
POTW	326	Rapid Mix	Particulate removal
POTW	326	Fluoridation	Other
POTW	326	Gaseous Chlorination, Post	Disinfection
POTW	326	Permanganate	Organics removal
POTW	326	Inhibitor, Orthophosphate	Corrosion control
POTW	326	Activated Carbon, Powdered	Taste / odor control
POTW	326	Hypochlorination, Post	Disinfection

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