Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI2680214
PWS Name	PEWAUKEE CITY WATER AND SEWER UTILITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	8671
County Served	Waukesha

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
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2500221	Known	01-OCT-2025	31-DEC-2025	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500219	Open	18-AUG-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500220	Open	18-AUG-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2500218	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2500213	Known	01-APR-2025	30-JUN-2025	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500212	Returned to Compliance	03-MAR-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2500211	Known	01-JAN-2025	31-MAR-2025	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500210	Open	18-NOV-2024	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2400186	Known	01-OCT-2024	31-DEC-2024	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2400185	Returned to Compliance	29-AUG-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500207	Open	16-JUL-2024	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2400183	Known	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2400182	Known	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2400180	Known	01-JAN-2024	31-MAR-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2400177	Known	01-OCT-2023	31-DEC-2023	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2100143	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2100166	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	2100148	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	2100149	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	2100150	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	2100151	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	2100146	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	2100152	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	2100153	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	2100154	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	2100155	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	2100156	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	2100157	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	2100158	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	2100159	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	2100160	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	2100161	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	2100162	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	2100165	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	2100164	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	2100128	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	2100163	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	2100147	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	2100137	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	2100136	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	2100135	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	2100134	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	2100133	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	2100132	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	2100129	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2100130	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	2100131	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	2100140	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	2100139	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	2100141	Returned to Compliance	01-JAN-2020	31-DEC-2020	No

1 - 50 of 97

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2500434	2500218	SFJ	State Formal Notice of Violation issued	19-AUG-2025	State	-
2500421	2500213	SIF	State Public Notification received	23-JUN-2025	State	-
2500422	2500212	SOX	State Compliance achieved	23-JUN-2025	State	-
2500402	2500211	SIB	State Compliance Meeting conducted	04-MAR-2025	State	-
2500396	2400185	SOX	State Compliance achieved	08-JAN-2025	State	-
2500394	2400186	SIF	State Public Notification received	08-JAN-2025	State	-
2500395	2000125	SIF	State Public Notification received	08-JAN-2025	State	-
2500363	2400183	SIF	State Public Notification received	27-SEP-2024	State	-
2500356	2400182	SFJ	State Formal Notice of Violation issued	17-JUL-2024	State	-
2500349	2400180	SIF	State Public Notification received	26-MAR-2024	State	-
2500343	2400177	SFJ	State Formal Notice of Violation issued	12-DEC-2023	State	-
2100243	2100128	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100129	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100130	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100131	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100132	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100133	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100134	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100135	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100136	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100137	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100139	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100140	SIF	State Public Notification received	09-JUN-2021	State	-
2100243	2100141	SIF	State Public Notification received	09-JUN-2021	State	-
2100244	2100142	SIF	State Public Notification received	09-JUN-2021	State	-
2100244	2100143	SIF	State Public Notification received	09-JUN-2021	State	-
2100244	2100145	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100146	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100147	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100148	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100149	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100150	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100151	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100152	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100153	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100154	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100155	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100156	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100157	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100158	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100159	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100160	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100161	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100162	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100163	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100164	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100165	SIF	State Public Notification received	09-JUN-2021	State	-
2100245	2100166	SIF	State Public Notification received	09-JUN-2021	State	-
2500338	1800113	SOX	State Compliance achieved	02-FEB-2021	State	-
2500393	1800112	SOX	State Compliance achieved	02-FEB-2021	State	-

1 - 50 of 91

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BH442	1	Yes	Well	Ground water	Permanent	Active
BO775	9	Yes	Well	Ground water	Permanent	Active
WO067	8	Yes	Well	Ground water	Permanent	Active
TO501	7	Yes	Well	Ground water	Permanent	Active
LK033	6	Yes	Well	Ground water	Permanent	Active
FN814	5	Yes	Well	Ground water	Permanent	Active
AY366	4	Yes	Well	Ground water	Permanent	Active
KW576	3	Yes	Well	Ground water	Permanent	Active
BH443	2	Yes	Well	Ground water	Permanent	Active
WP351	12	Yes	Well	Ground water	Permanent	Active
KW578	11	Yes	Well	Ground water	Permanent	Active
AX416	10	Yes	Well	Ground water	Permanent	Active
26802149	26802149	No	Distribution System/Zone	-	-	Active
200	200	No	Other	-	-	Active
300	300	No	Other	-	-	Active
400	400	No	Other	-	-	Active
500	500	No	Other	-	-	Active
AX416	10T	No	Treatment Plant	-	-	Active
KW578	11T	No	Treatment Plant	-	-	Active
WP351	12T	No	Treatment Plant	-	-	Active
BH442	1T	No	Treatment Plant	-	-	Active
BH443	2T	No	Treatment Plant	-	-	Active
KW576	3T	No	Treatment Plant	-	-	Active
400	400T	No	Treatment Plant	-	-	Active
AY366	4T	No	Treatment Plant	-	-	Active
FN814	5T	No	Treatment Plant	-	-	Active
LK033	6T	No	Treatment Plant	-	-	Active
TO501	7T	No	Treatment Plant	-	-	Active
WO067	8T	No	Treatment Plant	-	-	Active
BO775	9T	No	Treatment Plant	-	-	Active

1 - 30 of 30

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
AX416	10T	Hypochlorination, Post	Disinfection
KW578	11T	Hypochlorination, Post	Disinfection
WP351	12T	Hypochlorination, Post	Disinfection
BH442	1T	Hypochlorination, Post	Disinfection
BH442	1T	Sequestration	Iron removal
BH442	1T	Innovative	Radionuclides removal
BH443	2T	Hypochlorination, Post	Disinfection
BH443	2T	Sequestration	Iron removal
BH443	2T	Innovative	Radionuclides removal
KW576	3T	Hypochlorination, Post	Disinfection
KW576	3T	Sequestration	Iron removal
400	400T	Hypochlorination, Post	Disinfection
AY366	4T	Hypochlorination, Post	Disinfection
AY366	4T	Sequestration	Iron removal
FN814	5T	Hypochlorination, Post	Disinfection
FN814	5T	Sequestration	Iron removal
LK033	6T	Hypochlorination, Post	Disinfection
LK033	6T	Sequestration	Iron removal
TO501	7T	Hypochlorination, Post	Disinfection
TO501	7T	Sequestration	Iron removal
WO067	8T	Hypochlorination, Post	Disinfection
WO067	8T	Sequestration	Iron removal
BO775	9T	Hypochlorination, Post	Disinfection

1 - 23 of 23

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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