Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	055294402
PWS Name	VERMILION
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	450
County Served

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.

Violations

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
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	1003009	Open	31-OCT-2025	-	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1003011	Known	01-AUG-2025	31-AUG-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1003010	Known	01-AUG-2025	31-AUG-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1003013	Known	01-AUG-2025	31-AUG-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1003012	Known	01-AUG-2025	31-AUG-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1003008	Returned to Compliance	01-JUL-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1003007	Returned to Compliance	01-JAN-2024	31-DEC-2024	Yes
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1003006	Returned to Compliance	01-JUN-2023	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1002969	Returned to Compliance	01-APR-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1002970	Returned to Compliance	01-APR-2019	30-JUN-2019	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1002972	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	1002977	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	1002971	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	1002973	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	1002974	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	1002975	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	1002976	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	1002978	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	1002979	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	1002980	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	1002981	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	1002982	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1002983	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	1002984	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	1002985	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	1002986	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	1002987	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	1002988	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	1002989	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	1002990	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	1002991	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1002992	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1002993	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	1002994	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	1002995	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	1002996	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	1003002	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	1003004	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	1003003	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	1003005	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	1003001	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	1003000	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	1002999	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	1002998	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	1002997	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	1002952	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1002953	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1002951	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1002950	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1002949	Returned to Compliance	01-JAN-2014	31-DEC-2016	No

1 - 50 of 102

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6144	1003009	EIE	Federal Public Notification requested	21-NOV-2025	Region	-
6140	1003008	EOX	Federal Compliance achieved	22-AUG-2025	Region	-
6141	1003007	EOX	Federal Compliance achieved	22-JUL-2025	Region	-
6136	1003006	EIF	Federal Public Notification received from PWS	01-JUL-2024	Region	-
6130	1002971	EOX	Federal Compliance achieved	23-MAR-2021	Region	-
6129	1002972	EOX	Federal Compliance achieved	25-FEB-2021	Region	-
6128	1002977	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002978	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002979	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002980	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002981	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002982	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002983	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002984	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002985	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002986	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002987	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002988	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002989	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002990	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002991	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002992	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002993	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002994	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002995	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002996	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002997	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002998	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002999	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1003000	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1003001	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1003002	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1003003	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1003004	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1003005	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002973	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002974	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002975	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6128	1002976	EOX	Federal Compliance achieved	23-DEC-2020	Region	-
6122	1002946	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002947	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002948	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002949	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002950	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002951	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002952	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002953	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002954	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002955	EOX	Federal Compliance achieved	06-NOV-2019	Region	-
6122	1002956	EOX	Federal Compliance achieved	06-NOV-2019	Region	-

1 - 50 of 95

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
VERMILION WL#1	1240	Yes	Well	Ground water	Permanent	Active
WELL #4	1699	Yes	Well	Ground water	Permanent	Active
VERMILION WELL #3	1645	Yes	Well	Ground water	Permanent	Active
VERMILION WL#2	1241	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	759	No	Distribution System/Zone	-	-	Active
SAMPLING SITE # 1	1742	No	Sampling Station	-	-	Active
SAMPLING SITE # 2	1743	No	Sampling Station	-	-	Active
ENTRY POINT #1	758	No	Sampling Station	-	-	Active
TREATMENT PLANT #1	81	No	Treatment Plant	-	-	Active

1 - 9 of 9

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT #1	81	Hypochlorination, Pre	Disinfection
TREATMENT PLANT #1	81	Filtration, Pressure Sand	Inorganics removal

1 - 2 of 2

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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