Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI7350123
PWS Name	MERRILL WATERWORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	9661
County Served	Lincoln

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
RPT	Reporting, Assessment Forms (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2600022	Returned to Compliance	17-OCT-2025	-	No
TT	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2600021	Returned to Compliance	17-OCT-2025	-	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0600014	Returned to Compliance	01-JUN-2006	30-JUN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	0400008	Returned to Compliance	01-APR-2004	30-JUN-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0400013	Returned to Compliance	01-APR-2004	30-JUN-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9410898	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
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9338985	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9338829	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9338946	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9338907	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9338868	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9338869	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9338947	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9338908	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9338986	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9338830	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9338948	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9338831	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9338909	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9338870	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9338987	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9338871	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9338949	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9338832	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9338910	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9338988	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9338913	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9338835	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9338874	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9338991	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	9338952	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	9338836	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	9338875	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	9338992	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	9338914	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	9338953	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	9338876	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	9338993	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	9338954	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	9338837	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	9338915	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9338916	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9338955	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9338994	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9338877	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9338838	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	9338839	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	9338878	Returned to Compliance	01-JAN-1993	31-DEC-1993	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	9338917	Returned to Compliance	01-JAN-1993	31-DEC-1993	No

1 - 50 of 142

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2600036	2600021	SIF	State Public Notification received	06-NOV-2025	State	-
2600035	2600022	SIF	State Public Notification received	06-NOV-2025	State	-
0600019	0600014	SIF	State Public Notification received	26-JUL-2006	State	-
0500015	0400013	SIF	State Public Notification received	05-OCT-2004	State	-
0500013	0400008	SIF	State Public Notification received	05-OCT-2004	State	-
9410897	9410898	SOX	State Compliance achieved	12-SEP-1994	State	-
9400004	9400001	SOX	State Compliance achieved	12-SEP-1994	State	-
93E0299	9338829	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338830	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338831	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338832	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338835	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338836	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338837	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338838	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338839	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338840	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338841	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338842	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338843	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338844	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338845	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338847	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338848	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338849	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338850	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338851	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338853	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338857	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338858	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338859	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338860	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338862	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338865	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338868	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338869	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338870	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338871	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338874	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338875	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338876	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338877	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338878	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338879	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338880	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338881	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338882	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338883	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338884	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS
93E0299	9338886	SOX	State Compliance achieved	07-JUL-1993	State	SOC CMPL ACH FOR MERRILL WATERWORKS

1 - 50 of 142

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SB773	1	Yes	Well	Ground water	Permanent	Active
BG203	99	Yes	Well	Ground water	Permanent	Inactive
BG204	2	Yes	Well	Ground water	Permanent	Inactive
BG207	5	Yes	Well	Ground water	Permanent	Active
BG206	4	Yes	Well	Ground water	Permanent	Active
BG205	3	Yes	Well	Ground water	Permanent	Active
73501230	73501230	No	Distribution System/Zone	-	-	Active
100	100	No	Other	-	-	Inactive
SB773	1T	No	Treatment Plant	-	-	Active
BG205	3T	No	Treatment Plant	-	-	Active
BG206	4T	No	Treatment Plant	-	-	Active
BG207	5T	No	Treatment Plant	-	-	Active
100	100T	No	Treatment Plant	-	-	Inactive
BG204	2T	No	Treatment Plant	-	-	Inactive
BG203	99T	No	Treatment Plant	-	-	Inactive

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
100	100T	Fluoridation	Other
100	100T	Hypochlorination, Post	Disinfection
100	100T	Hypochlorination, Pre	Manganese removal
100	100T	Inhibitor, Polyphosphate	Corrosion control
SB773	1T	Filtration, Greensand	Manganese removal
SB773	1T	Fluoridation	Other
SB773	1T	Hypochlorination, Pre	Disinfection
SB773	1T	Hypochlorination, Pre	Manganese removal
SB773	1T	Inhibitor, Polyphosphate	Corrosion control
BG204	2T	Fluoridation	Other
BG204	2T	Hypochlorination, Post	Disinfection
BG204	2T	Inhibitor, Polyphosphate	Corrosion control
BG205	3T	Hypochlorination, Post	Disinfection
BG205	3T	Inhibitor, Polyphosphate	Corrosion control
BG206	4T	Filtration, Greensand	Manganese removal
BG206	4T	Fluoridation	Other
BG206	4T	Hypochlorination, Pre	Disinfection
BG206	4T	Hypochlorination, Pre	Manganese removal
BG206	4T	Inhibitor, Polyphosphate	Corrosion control
BG207	5T	Filtration, Greensand	Manganese removal
BG207	5T	Fluoridation	Other
BG207	5T	Hypochlorination, Pre	Disinfection
BG207	5T	Hypochlorination, Pre	Manganese removal
BG207	5T	Inhibitor, Polyphosphate	Corrosion control

1 - 24 of 24

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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