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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	52799	Returned to Compliance	01-SEP-2020	30-SEP-2020	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	52800	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	39196	Known	01-SEP-1996	30-SEP-1996	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	52795	Known	01-SEP-1995	30-SEP-1995	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	27695	Known	01-APR-1995	30-APR-1995	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	23995	Known	01-MAR-1995	31-MAR-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	24095	Known	01-MAR-1995	31-MAR-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3195	Known	01-OCT-1994	31-OCT-1994	Yes
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	3294	Known	01-OCT-1993	31-OCT-1993	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	47493	Known	01-SEP-1993	30-SEP-1993	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	20592	Known	01-APR-1992	30-APR-1992	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	44191	Known	01-SEP-1991	30-SEP-1991	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
2511	52800	SOX	State Compliance achieved	28-MAY-2021	State	The system has returned to a routine monitoring and reporting schedule for chlorine/chloramine MRDL and hs returned to compliance..
2509	52799	SIF	State Public Notification received	13-NOV-2020	State	-
497	39196	SIF	State Public Notification received	03-OCT-1996	State	-
496	52795	SIE	State Public Notification requested	16-OCT-1995	State	-
4395	24095	SIF	State Public Notification received	15-MAY-1995	State	-
4095	23995	SIF	State Public Notification received	14-APR-1995	State	-
1195	3195	SIF	State Public Notification received	16-NOV-1994	State	-
1494	47493	SIF	State Public Notification received	05-NOV-1993	State	-
1094	3294	SIA	State Violation/Reminder Notice	04-NOV-1993	State	-
892	20592	SIF	State Public Notification received	07-MAY-1992	State	-
2E91	44191	SIA	State Violation/Reminder Notice	25-SEP-1991	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 NORTHEAST RWD- NV BRANCH	10811	Yes	Consecutive Connection	Ground water	Permanent	Active
NORTH SITE - WELL #1	756	Yes	Well	Ground water	Emergency	Inactive
SOUTH SITE - WELL #6	1985	Yes	Well	Ground water	Emergency	Inactive
SOUTH SITE - WELL #5	1951	Yes	Well	Ground water	Emergency	Inactive
SOUTH SITE - WELL #4	1890	Yes	Well	Ground water	Emergency	Inactive
SOUTH SITE - WELL #3	1777	Yes	Well	Ground water	Emergency	Inactive
SOUTH SITE - WELL #2	1544	Yes	Well	Ground water	Emergency	Inactive
WALHALLA CITY OF	3855	No	Distribution System/Zone	-	-	Active
IDSE FACILITY	11627	No	Distribution System/Zone	-	-	Inactive
SAMPLE STATION	2519	No	Sampling Station	-	-	Active
TREATMENT PLANT	2965	No	Treatment Plant	-	-	Inactive

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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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