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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	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3203514	Returned to Compliance	29-SEP-2025	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3203513	Open	15-AUG-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3203512	Returned to Compliance	01-JUL-2025	30-SEP-2025	Yes
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3203511	Returned to Compliance	12-MAR-2025	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	3203510	Returned to Compliance	01-JAN-2025	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	3203509	Returned to Compliance	01-JAN-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3203508	Returned to Compliance	01-JUL-2019	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	3203507	Returned to Compliance	01-JAN-2019	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3203506	Returned to Compliance	01-JUL-2018	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3203505	Returned to Compliance	01-JUL-2017	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	3203504	Returned to Compliance	02-JAN-2010	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1100	Returned to Compliance	01-JAN-2000	31-JAN-2000	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1000	Returned to Compliance	01-NOV-1999	30-NOV-1999	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	900	Returned to Compliance	01-OCT-1999	31-OCT-1999	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	894	Returned to Compliance	01-JUN-1994	30-JUN-1994	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	181693	Returned to Compliance	01-JAN-1993	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	793	Returned to Compliance	01-JAN-1993	-	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	693	Returned to Compliance	01-JUL-1992	31-DEC-1992	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	249193	Known	01-JUL-1992	31-DEC-1992	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
3403232	3203512	SOX	State Compliance achieved	03-NOV-2025	State	11/03/2025 is 4Q sampling date in which LRAA < MCL (EC)
3403230	3203513	SIE	State Public Notification requested	01-OCT-2025	State	-
3403231	3203514	SOX	State Compliance achieved	29-SEP-2025	State	-
3403226	3203510	SOX	State Compliance achieved	04-SEP-2025	State	-
3403220	3203511	SIE	State Public Notification requested	07-JUN-2025	State	-
3403216	3203509	SOX	State Compliance achieved	05-APR-2022	State	-
3403213	3203507	SOX	State Compliance achieved	02-APR-2020	State	-
3403212	3203508	SOX	State Compliance achieved	13-NOV-2019	State	-
3403209	3203506	SOX	State Compliance achieved	04-DEC-2018	State	Migrated by MTS 3.0 on 04-11-2019
3403204	3203505	SFL	State Administrative/Compliance Order without penalty issued	29-NOV-2017	State	-
1	793	SOX	State Compliance achieved	15-JUL-2010	State	the violation was SOXed and SO6 as it is over the statue of 5 year limitation. 7/12/2010 HC
1	693	SOX	State Compliance achieved	15-JUL-2010	State	the violation was SOXed and SO6 as it is over the statue of 5 year limitation. 7/12/2010 HC
3403201	3203504	SOX	State Compliance achieved	26-JAN-2010	State	-
3403202	894	SOX	State Compliance achieved	31-JAN-2005	State	Migrated by MTS 3.0 on 06-16-2016
1800	1000	SOX	State Compliance achieved	31-AUG-2000	State	-Old ESN: 3314
1800	900	SOX	State Compliance achieved	31-AUG-2000	State	-Old ESN: 3314
1800	1100	SOX	State Compliance achieved	31-AUG-2000	State	-Old ESN: 3314
9999900000000000002	181693	SOX	State Compliance achieved	02-JAN-1994	ODSWeb	-

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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
MONTGOMERY COUNTY WATER SYSTEM	72117	Yes	Consecutive Connection	Surface water	Emergency	Inactive
MONTGOMERY CO	40073	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	54959	No	Distribution System/Zone	-	-	Active
STORAGE_ELEVATED_2	766	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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