Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI2650062
PWS Name	ELKHORN WATERWORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	10317
County Served	Walworth

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	2200187	Returned to Compliance	01-NOV-2021	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	2200186	Returned to Compliance	28-OCT-2021	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2100175	Returned to Compliance	01-JAN-2021	31-MAR-2021	Yes
TT	Lead Service Line Replacement (LSLR)	Lead and Copper Rule	Lead and Copper Rule	2100185	Returned to Compliance	01-NOV-2020	21-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2100174	Returned to Compliance	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1900141	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1900139	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1900135	Returned to Compliance	07-NOV-2018	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1900134	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1500124	Returned to Compliance	29-APR-2015	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1500123	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1600126	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600125	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1200117	Returned to Compliance	01-JAN-2012	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	1000096	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1000095	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1000094	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1000093	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1000092	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1000091	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1000097	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1000098	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1000099	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1000100	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1000101	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1000102	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1000104	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1000105	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1000106	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1000107	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1000108	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1000109	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1000110	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1000090	Returned to Compliance	01-APR-2010	30-JUN-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1000103	Returned to Compliance	01-APR-2010	30-JUN-2010	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0600082	Returned to Compliance	01-JUL-2006	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0500076	Returned to Compliance	01-JUL-2005	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	0500030	Open	01-JAN-2005	-	No
TT	Lead Service Line Replacement (LSLR)	Lead and Copper Rule	Lead and Copper Rule	0500029	Returned to Compliance	01-JAN-2004	31-DEC-2005	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0300025	Returned to Compliance	01-JUL-2003	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0100024	Returned to Compliance	01-MAR-2001	31-MAR-2001	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	0100023	Returned to Compliance	01-OCT-2000	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0000022	Returned to Compliance	01-JUL-2000	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9900020	Returned to Compliance	01-JAN-1999	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	0000084	Returned to Compliance	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	0000083	Returned to Compliance	01-JAN-1999	31-DEC-1999	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9900019	Returned to Compliance	01-JUL-1998	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	9900050	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	9900039	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	9900049	Returned to Compliance	01-JAN-1998	31-DEC-1998	No

1 - 50 of 76

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2200188	2100185	SOX	State Compliance achieved	21-SEP-2022	State	-
2200182	2200187	SOX	State Compliance achieved	21-MAR-2022	State	-
2200183	2200186	SOX	State Compliance achieved	18-MAR-2022	State	-
1900112	1900135	SOX	State Compliance achieved	03-MAY-2019	State	-
1700100	1600125	SOX	State Compliance achieved	27-JUL-2016	State	-
1700100	1600126	SOX	State Compliance achieved	27-JUL-2016	State	-
1700098	1500123	SIF	State Public Notification received	16-MAY-2016	State	-
1700099	1500124	SOX	State Compliance achieved	16-MAY-2016	State	-
1400088	1200117	SOX	State Compliance achieved	29-FEB-2012	State	-
1400091	1000090	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000091	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000092	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000093	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000094	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000095	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000096	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000097	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000098	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000099	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000100	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000101	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000102	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000103	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000104	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000105	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000106	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000107	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000108	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000109	SIF	State Public Notification received	21-JUN-2011	State	-
1400091	1000110	SIF	State Public Notification received	21-JUN-2011	State	-
1100085	0500030	SO6	State Intentional no-action	22-FEB-2011	State	-
0600041	0600082	SIA	State Violation/Reminder Notice	14-AUG-2006	State	-
1400086	0500029	SOX	State Compliance achieved	31-DEC-2005	State	-
#0800029	0500076	EOX	Federal Compliance achieved	14-OCT-2005	ODSWeb	CCR NOV termination by LC.
0300011	0300025	SOX	State Compliance achieved	04-AUG-2003	State	-
0200029	9800033	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200016	9900019	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200018	9900020	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900034	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900039	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900040	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900044	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900045	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900049	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900050	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900058	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900059	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900063	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900064	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-
0200032	9900065	SIA	State Violation/Reminder Notice	14-DEC-2001	State	-

1 - 50 of 70

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NZ645	9	Yes	Well	Ground water	Emergency	Active
BH179	99	Yes	Well	Ground water	Permanent	Inactive
BH178	5	Yes	Well	Ground water	Permanent	Inactive
NZ646	10	Yes	Well	Ground water	Permanent	Inactive
WH972	8	Yes	Well	Ground water	Permanent	Active
IE861	7	Yes	Well	Ground water	Permanent	Active
AY338	6	Yes	Well	Ground water	Permanent	Active
BH177	4	Yes	Well	Ground water	Permanent	Active
26500628	26500628	No	Distribution System/Zone	-	-	Active
100	100	No	Other	-	-	Active
300	300	No	Other	-	-	Active
200	200	No	Other	-	-	Inactive
300	300T	No	Treatment Plant	-	-	Active
BH177	4T	No	Treatment Plant	-	-	Active
AY338	6T	No	Treatment Plant	-	-	Active
IE861	7T	No	Treatment Plant	-	-	Active
WH972	8T	No	Treatment Plant	-	-	Active
NZ645	9T	No	Treatment Plant	-	-	Active
200	200T	No	Treatment Plant	-	-	Inactive
BH178	5T	No	Treatment Plant	-	-	Inactive

1 - 20 of 20

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
200	200T	Aeration, Slat Tray	Iron removal
200	200T	Filtration, Pressure Sand	Iron removal
200	200T	Hypochlorination, Post	Disinfection
200	200T	Hypochlorination, Pre	Iron removal
200	200T	Inhibitor, Polyphosphate	Corrosion control
200	200T	Ion Exchange	Softening (hardness removal)
300	300T	Aeration, Spray	Iron removal
300	300T	Filtration, Pressure Sand	Inorganics removal
300	300T	Hypochlorination, Post	Disinfection
300	300T	Hypochlorination, Pre	Iron removal
300	300T	Inhibitor, Polyphosphate	Corrosion control
300	300T	Ion Exchange	Radionuclides removal
300	300T	Ion Exchange	Softening (hardness removal)
300	300T	Innovative	Inorganics removal
BH177	4T	Hypochlorination, Post	Disinfection
BH178	5T	Hypochlorination, Post	Disinfection
AY338	6T	Hypochlorination, Post	Disinfection
IE861	7T	Aeration, Spray	Iron removal
IE861	7T	Filtration, Pressure Sand	Iron removal
IE861	7T	Hypochlorination, Post	Disinfection
IE861	7T	Hypochlorination, Pre	Iron removal
IE861	7T	Inhibitor, Polyphosphate	Corrosion control
IE861	7T	Ion Exchange	Softening (hardness removal)
WH972	8T	Hypochlorination, Post	Disinfection
WH972	8T	Inhibitor, Polyphosphate	Corrosion control
NZ645	9T	Hypochlorination, Pre	Iron removal

1 - 26 of 26

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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