Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI6470141
PWS Name	PEPIN WATERWORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	816
County Served	Pepin

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	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	2600058	Open	03-OCT-2025	-	Yes
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	2500054	Returned to Compliance	02-AUG-2025	-	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2500055	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	2500049	Returned to Compliance	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	2500050	Returned to Compliance	17-OCT-2024	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500051	Open	17-OCT-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500056	Open	17-OCT-2024	-	No
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	2400027	Returned to Compliance	02-MAY-2024	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	2300026	Returned to Compliance	01-FEB-2023	-	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2100024	Returned to Compliance	01-OCT-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2100022	Returned to Compliance	01-JUL-2021	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2100023	Returned to Compliance	01-JUL-2021	-	No
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	2100020	Returned to Compliance	02-MAY-2021	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2100021	Returned to Compliance	01-MAY-2021	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2100018	Returned to Compliance	01-FEB-2021	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	2100019	Returned to Compliance	01-NOV-2020	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	1500016	Returned to Compliance	01-JAN-2014	-	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0600015	Returned to Compliance	01-JUL-2006	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0400013	Returned to Compliance	01-JUL-2004	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0200012	Returned to Compliance	01-JUL-2002	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0000011	Returned to Compliance	01-JUL-2000	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9500002	Returned to Compliance	01-SEP-1995	30-SEP-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9500003	Returned to Compliance	01-AUG-1995	31-AUG-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9410162	Returned to Compliance	01-AUG-1994	31-AUG-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9400001	Returned to Compliance	01-AUG-1994	31-AUG-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9304328	Returned to Compliance	01-SEP-1993	30-SEP-1993	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9400014	Returned to Compliance	01-JUL-1993	-	No

1 - 27 of 27

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2600077	2600058	SIF	State Public Notification received	06-NOV-2025	State	-
2500071	2500055	SOX	State Compliance achieved	30-SEP-2025	State	-
2500070	2500054	SIA	State Violation/Reminder Notice	19-SEP-2025	State	-
2500061	2500050	SOX	State Compliance achieved	04-NOV-2024	State	-
2500060	2500049	SOX	State Compliance achieved	04-NOV-2024	State	-
2400052	2400027	SIA	State Violation/Reminder Notice	09-MAY-2024	State	-
2400050	2300026	SOX	State Compliance achieved	03-OCT-2023	State	-
2200046	2100022	SOX	State Compliance achieved	30-JUN-2022	State	-
2200045	2100023	SOX	State Compliance achieved	30-JUN-2022	State	-
2200043	2100019	SIF	State Public Notification received	14-JUN-2022	State	-
2200044	2100021	SOX	State Compliance achieved	14-JUN-2022	State	-
2200039	2100024	SOX	State Compliance achieved	08-OCT-2021	State	-
2100034	2100020	SIA	State Violation/Reminder Notice	11-MAY-2021	State	-
2100029	2100018	SOX	State Compliance achieved	03-FEB-2021	State	-
1500028	1500016	SIF	State Public Notification received	25-FEB-2014	State	-
0600021	0600015	SOX	State Compliance achieved	17-JUL-2006	State	-
0400018	0400013	SOX	State Compliance achieved	13-AUG-2004	State	-
0200017	0200012	SOX	State Compliance achieved	08-AUG-2002	State	-
0000016	0000011	SOX	State Compliance achieved	17-JUL-2000	State	-
9600011	9500002	SIF	State Public Notification received	07-DEC-1995	State	-
9600014	9500003	SIF	State Public Notification received	07-NOV-1995	State	-
9410161	9410162	SIA	State Violation/Reminder Notice	19-DEC-1994	State	-
9500005	9400001	SIA	State Violation/Reminder Notice	19-DEC-1994	State	-
9400020	9400014	SOX	State Compliance achieved	31-DEC-1993	State	-
9307045	9304328	SIF	State Public Notification received	10-NOV-1993	State	-

1 - 25 of 25

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BG664	1	Yes	Well	Ground water	Permanent	Active
YJ334	3	Yes	Well	Ground water	Permanent	Active
BG665	2	Yes	Well	Ground water	Permanent	Active
64701417	64701417	No	Distribution System/Zone	-	-	Active
BG664	1T	No	Treatment Plant	-	-	Active
BG665	2T	No	Treatment Plant	-	-	Active
YJ334	3T	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BG664	1T	Hypochlorination, Post	Disinfection
BG665	2T	Hypochlorination, Post	Disinfection
YJ334	3T	Hypochlorination, Post	Disinfection

1 - 3 of 3

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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