Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI1130224
PWS Name	MADISON WATER UTILITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	272000
County Served	Dane

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	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	2500191	Returned to Compliance	17-OCT-2024	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500192	Open	17-OCT-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1300170	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1400172	Open	01-JAN-2004	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	0100091	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	0100007	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	0100124	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0100042	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0100126	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0100086	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0100041	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0100040	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0100125	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0100103	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0100039	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0100037	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0100105	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	0100107	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	0100035	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	0100108	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	0100034	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	0100033	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	0100109	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	0100032	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	0100110	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	0100031	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	0100111	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	0100030	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	0100112	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	0100029	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	0100113	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	0100115	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	0100027	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	0100116	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	0100026	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	0100025	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	0100117	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	0100118	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	0100024	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	0100020	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	0100122	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	0100095	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	0100019	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	0100090	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	0100008	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	0100044	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9700145	Returned to Compliance	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	9700148	Returned to Compliance	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	9700149	Returned to Compliance	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	9700134	Returned to Compliance	01-JUL-1996	30-SEP-1996	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2500038	2500191	SOX	State Compliance achieved	13-DEC-2024	State	-
1400029	1300170	SIF	State Public Notification received	13-MAY-2014	State	-
1900030	1400172	SO6	State Intentional no-action	22-FEB-2011	State	-
1400028	1400171	SOX	State Compliance achieved	30-JAN-2004	State	-
0400024	0300127	SOX	State Compliance achieved	30-JAN-2004	State	-
0200018	0100007	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100008	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100019	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100020	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100024	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100025	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100026	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100027	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100029	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100030	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100031	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100032	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100033	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100034	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100035	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100037	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100039	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100040	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100041	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100042	SIF	State Public Notification received	03-JUL-2002	State	-
0200018	0100044	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100086	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100090	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100091	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100095	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100103	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100105	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100107	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100108	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100109	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100110	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100111	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100112	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100113	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100115	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100116	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100117	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100118	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100122	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100124	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100125	SIF	State Public Notification received	03-JUL-2002	State	-
0200020	0100126	SIF	State Public Notification received	03-JUL-2002	State	-
9700022	9700001	SOX	State Compliance achieved	20-AUG-1997	State	-
9700021	9700138	SOX	State Compliance achieved	31-DEC-1996	State	-
9700021	9700139	SOX	State Compliance achieved	31-DEC-1996	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BF521	22	Yes	Well	Ground water	Emergency	Inactive
BF508	8	Yes	Well	Ground water	Seasonal	Inactive
LK016	28	Yes	Well	Ground water	Seasonal	Inactive
AX011	27	Yes	Well	Ground water	Seasonal	Inactive
BF522	23	Yes	Well	Ground water	Seasonal	Inactive
BF506	6	Yes	Well	Ground water	Seasonal	Active
BF517	17	Yes	Well	Ground water	Seasonal	Active
BF505	5	Yes	Well	Ground water	Permanent	Inactive
BF504	4	Yes	Well	Ground water	Permanent	Inactive
BF503	3	Yes	Well	Ground water	Permanent	Inactive
BF502	2	Yes	Well	Ground water	Permanent	Inactive
BF510	10	Yes	Well	Ground water	Permanent	Inactive
BF501	1	Yes	Well	Ground water	Permanent	Inactive
BF509	9	Yes	Well	Ground water	Permanent	Active
BF507	7	Yes	Well	Ground water	Permanent	Active
YM827	31	Yes	Well	Ground water	Permanent	Active
RG700	30	Yes	Well	Ground water	Permanent	Active
RG653	29	Yes	Well	Ground water	Permanent	Active
BF567	26	Yes	Well	Ground water	Permanent	Active
BF524	25	Yes	Well	Ground water	Permanent	Active
BF523	24	Yes	Well	Ground water	Permanent	Active
BF520	20	Yes	Well	Ground water	Permanent	Active
BF519	19	Yes	Well	Ground water	Permanent	Active
BF518	18	Yes	Well	Ground water	Permanent	Active
BF516	16	Yes	Well	Ground water	Permanent	Active
BF515	15	Yes	Well	Ground water	Permanent	Active
BF514	14	Yes	Well	Ground water	Permanent	Active
BF513	13	Yes	Well	Ground water	Permanent	Active
BF512	12	Yes	Well	Ground water	Permanent	Active
BF511	11	Yes	Well	Ground water	Permanent	Active
11302247	11302247	No	Distribution System/Zone	-	-	Active
BF511	11T	No	Treatment Plant	-	-	Active
BF512	12T	No	Treatment Plant	-	-	Active
BF513	13T	No	Treatment Plant	-	-	Active
BF514	14T	No	Treatment Plant	-	-	Active
BF515	15T	No	Treatment Plant	-	-	Active
BF516	16T	No	Treatment Plant	-	-	Active
BF517	17T	No	Treatment Plant	-	-	Active
BF518	18T	No	Treatment Plant	-	-	Active
BF519	19T	No	Treatment Plant	-	-	Active
BF520	20T	No	Treatment Plant	-	-	Active
BF523	24T	No	Treatment Plant	-	-	Active
BF524	25T	No	Treatment Plant	-	-	Active
BF567	26T	No	Treatment Plant	-	-	Active
RG653	29T	No	Treatment Plant	-	-	Active
RG700	30T	No	Treatment Plant	-	-	Active
YM827	31T	No	Treatment Plant	-	-	Active
BF506	6T	No	Treatment Plant	-	-	Active
BF507	7T	No	Treatment Plant	-	-	Active
BF509	9T	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BF510	10T	Fluoridation	Other
BF510	10T	Hypochlorination, Post	Disinfection
BF511	11T	Fluoridation	Other
BF511	11T	Gaseous Chlorination, Post	Disinfection
BF511	11T	Hypochlorination, Pre	Disinfection
BF512	12T	Fluoridation	Other
BF512	12T	Gaseous Chlorination, Post	Disinfection
BF512	12T	Gaseous Chlorination, Pre	Disinfection
BF513	13T	Fluoridation	Other
BF513	13T	Gaseous Chlorination, Post	Disinfection
BF513	13T	Gaseous Chlorination, Pre	Disinfection
BF514	14T	Fluoridation	Other
BF514	14T	Gaseous Chlorination, Post	Disinfection
BF514	14T	Gaseous Chlorination, Pre	Disinfection
BF515	15T	Activated Carbon, Granular	Organics removal
BF515	15T	Fluoridation	Other
BF515	15T	Gaseous Chlorination, Post	Disinfection
BF515	15T	Gaseous Chlorination, Pre	Disinfection
BF515	15T	Innovative	Other
BF516	16T	Fluoridation	Other
BF516	16T	Gaseous Chlorination, Post	Disinfection
BF516	16T	Gaseous Chlorination, Pre	Disinfection
BF517	17T	Fluoridation	Other
BF517	17T	Gaseous Chlorination, Post	Disinfection
BF517	17T	Gaseous Chlorination, Pre	Disinfection
BF518	18T	Fluoridation	Other
BF518	18T	Gaseous Chlorination, Post	Disinfection
BF518	18T	Gaseous Chlorination, Pre	Disinfection
BF519	19T	Fluoridation	Other
BF519	19T	Gaseous Chlorination, Post	Disinfection
BF519	19T	Gaseous Chlorination, Pre	Disinfection
BF520	20T	Fluoridation	Other
BF520	20T	Gaseous Chlorination, Post	Disinfection
BF520	20T	Gaseous Chlorination, Pre	Disinfection
BF522	23T	Fluoridation	Other
BF522	23T	Gaseous Chlorination, Pre	Disinfection
BF523	24T	Fluoridation	Other
BF523	24T	Gaseous Chlorination, Post	Disinfection
BF523	24T	Gaseous Chlorination, Pre	Disinfection
BF524	25T	Fluoridation	Other
BF524	25T	Gaseous Chlorination, Post	Disinfection
BF524	25T	Gaseous Chlorination, Pre	Disinfection
BF567	26T	Fluoridation	Other
BF567	26T	Gaseous Chlorination, Post	Disinfection
BF567	26T	Gaseous Chlorination, Pre	Disinfection
AX011	27T	Fluoridation	Other
AX011	27T	Gaseous Chlorination, Post	Disinfection
AX011	27T	Gaseous Chlorination, Pre	Disinfection
LK016	28T	Fluoridation	Other
LK016	28T	Gaseous Chlorination, Post	Disinfection

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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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