Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI1280107
PWS Name	JOHNSON CREEK WATERWORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	3318
County Served	Jefferson

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2600088	Open	01-DEC-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2500085	Returned to Compliance	01-NOV-2024	30-NOV-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500086	Open	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	2500084	Returned to Compliance	17-OCT-2024	-	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2400061	Returned to Compliance	01-JUL-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2400062	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	2300057	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	2200055	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	2200048	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2100042	Returned to Compliance	01-JUL-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2100041	Returned to Compliance	01-JUL-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2100046	Returned to Compliance	01-NOV-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2100044	Returned to Compliance	01-NOV-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2100043	Returned to Compliance	01-NOV-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2100045	Returned to Compliance	01-NOV-2020	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2000039	Returned to Compliance	01-JUL-2020	31-OCT-2020	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	2000037	Returned to Compliance	01-JUL-2020	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2000035	Returned to Compliance	01-JUL-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2000036	Returned to Compliance	01-JUL-2020	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2000038	Returned to Compliance	01-JUL-2020	31-OCT-2020	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2000040	Returned to Compliance	01-JUL-2020	31-OCT-2020	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1700034	Returned to Compliance	01-JUL-2017	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0300020	Returned to Compliance	01-MAY-2003	31-MAY-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0200019	Returned to Compliance	01-JAN-2001	18-APR-2007	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	9900013	Returned to Compliance	01-JUL-1998	30-SEP-1998	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	9900011	Returned to Compliance	01-JUL-1998	30-SEP-1998	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	9900014	Returned to Compliance	01-JUL-1998	30-SEP-1998	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	9900012	Returned to Compliance	01-JUL-1998	30-SEP-1998	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	9800010	Returned to Compliance	01-JUL-1997	30-SEP-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	9800007	Returned to Compliance	01-JUL-1997	30-SEP-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	9800009	Returned to Compliance	01-JUL-1997	30-SEP-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	9800008	Returned to Compliance	01-JUL-1997	30-SEP-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	9700003	Returned to Compliance	01-APR-1997	30-JUN-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	9700005	Returned to Compliance	01-APR-1997	30-JUN-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	9700006	Returned to Compliance	01-APR-1997	30-JUN-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	9700004	Returned to Compliance	01-APR-1997	30-JUN-1997	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	9700002	Returned to Compliance	01-JAN-1996	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	9700001	Returned to Compliance	01-JAN-1996	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8792004	Returned to Compliance	01-AUG-1987	31-JUL-1991	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	8692001	Returned to Compliance	02-SEP-1986	01-SEP-1990	Yes

1 - 40 of 40

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2500117	2000040	SIF	State Public Notification received	04-AUG-2025	State	-
2500115	2000039	SIF	State Public Notification received	04-AUG-2025	State	-
2500121	2100045	SOX	State Compliance achieved	04-AUG-2025	State	-
2500120	2100044	SOX	State Compliance achieved	04-AUG-2025	State	-
2500119	2100043	SOX	State Compliance achieved	04-AUG-2025	State	-
2500122	2100046	SOX	State Compliance achieved	04-AUG-2025	State	-
2500118	2000038	SIF	State Public Notification received	04-AUG-2025	State	-
2500116	2000037	SIF	State Public Notification received	04-AUG-2025	State	-
2500106	2500084	SOX	State Compliance achieved	10-JUN-2025	State	-
2500103	2500085	SOX	State Compliance achieved	12-DEC-2024	State	-
2400079	2400061	SOX	State Compliance achieved	21-AUG-2024	State	-
2400080	2400062	SOX	State Compliance achieved	21-AUG-2024	State	-
2400076	2200048	SOX	State Compliance achieved	23-MAY-2023	State	-
2400075	2300057	SOX	State Compliance achieved	21-FEB-2023	State	-
2400074	2200055	SOX	State Compliance achieved	21-FEB-2023	State	-
2100054	2100042	SIA	State Violation/Reminder Notice	02-AUG-2021	State	-
2100053	2100041	SIA	State Violation/Reminder Notice	02-AUG-2021	State	-
2100042	2000036	SIE	State Public Notification requested	22-JAN-2021	State	-
2000041	2000035	SIA	State Violation/Reminder Notice	07-AUG-2020	State	-
1700037	1700034	SOX	State Compliance achieved	01-AUG-2017	State	-
0700033	9700002	SOX	State Compliance achieved	18-APR-2007	State	-
0700034	9700001	SOX	State Compliance achieved	18-APR-2007	State	-
0700035	0200019	SOX	State Compliance achieved	18-APR-2007	State	-
0300029	0300020	SOX	State Compliance achieved	26-JUN-2003	State	-
9900012	9900014	SOX	State Compliance achieved	19-APR-1999	State	-
9900012	9900013	SOX	State Compliance achieved	19-APR-1999	State	-
9900012	9900012	SOX	State Compliance achieved	19-APR-1999	State	-
9900012	9900011	SOX	State Compliance achieved	19-APR-1999	State	-
9800010	9800009	SIF	State Public Notification received	27-MAY-1998	State	-
9800010	9800008	SIF	State Public Notification received	27-MAY-1998	State	-
9800010	9800007	SIF	State Public Notification received	27-MAY-1998	State	-
9800009	9700006	SIF	State Public Notification received	27-MAY-1998	State	-
9800010	9800010	SIF	State Public Notification received	27-MAY-1998	State	-
9800009	9700004	SIF	State Public Notification received	27-MAY-1998	State	-
9800009	9700003	SIF	State Public Notification received	27-MAY-1998	State	-
9800009	9700005	SIF	State Public Notification received	27-MAY-1998	State	-
87E0003	8792004	SOX	State Compliance achieved	30-SEP-1987	State	-
86E0003	8692001	SOX	State Compliance achieved	30-SEP-1986	State	-

1 - 38 of 38

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BG007	2	Yes	Well	Ground water	Permanent	Active
AT092	99	Yes	Well	Ground water	Permanent	Inactive
BG008	98	Yes	Well	Ground water	Permanent	Inactive
DW152	3	Yes	Well	Ground water	Permanent	Active
12801074	12801074	No	Distribution System/Zone	-	-	Active
BG007	2T	No	Treatment Plant	-	-	Active
DW152	3T	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BG007	2T	Hypochlorination, Post	Disinfection
DW152	3T	Filtration, Pressure Sand	Iron removal
DW152	3T	Filtration, Pressure Sand	Inorganics removal
DW152	3T	Filtration, Pressure Sand	Radionuclides removal
DW152	3T	Hypochlorination, Post	Disinfection
DW152	3T	Hypochlorination, Pre	Iron removal
DW152	3T	Hypochlorination, Pre	Manganese removal
DW152	3T	Permanganate	Iron removal

1 - 8 of 8

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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