Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI4360436
PWS Name	TWO RIVERS WATERWORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	11270
County Served	Manitowoc

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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2600171	Returned to Compliance	01-OCT-2025	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	2500168	Returned to Compliance	17-OCT-2024	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2500169	Returned to Compliance	17-OCT-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2100147	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2100148	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1800109	Returned to Compliance	01-JAN-2018	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	1800108	Returned to Compliance	01-JUL-2017	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1800106	Returned to Compliance	01-JUN-2017	30-NOV-2017	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1800107	Returned to Compliance	01-JUN-2017	30-NOV-2017	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	1800014	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	1800017	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	1800074	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	1800096	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	1800028	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	1800075	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	1800076	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	1800077	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	1800099	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	1800093	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	1800079	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	1800080	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	1800081	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	1800100	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	1800082	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	1800083	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	1800094	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	1800084	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	1800097	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	1800085	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	1800087	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	1800095	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	1800088	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	1800089	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	1800025	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	1800024	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	1800023	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1800049	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1800047	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1800046	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1800052	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1800045	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1800043	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1800041	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1800040	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1800039	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1800038	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1800037	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1800036	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1800035	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1800051	Returned to Compliance	01-JAN-2017	31-DEC-2017	No

1 - 50 of 81

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2600079	2600171	SOX	State Compliance achieved	03-NOV-2025	State	-
2500075	2500169	SOX	State Compliance achieved	13-JUN-2025	State	-
2500074	2500168	SIF	State Public Notification received	13-JUN-2025	State	-
2200067	2100148	SOX	State Compliance achieved	07-SEP-2022	State	-
2200067	2100147	SOX	State Compliance achieved	07-SEP-2022	State	-
1800059	1800107	SOX	State Compliance achieved	26-JUN-2018	State	-
1800060	1800106	SOX	State Compliance achieved	26-JUN-2018	State	-
1800061	1800108	SOX	State Compliance achieved	26-JUN-2018	State	-
1800056	1800013	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800014	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800015	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800016	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800017	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800018	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800019	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800020	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800021	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800022	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800023	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800024	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800025	SIF	State Public Notification received	05-JUN-2018	State	-
1800056	1800026	SIF	State Public Notification received	05-JUN-2018	State	-
1800057	1800028	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800031	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800032	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800033	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800035	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800036	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800037	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800038	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800039	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800040	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800041	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800043	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800045	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800046	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800047	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800049	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800051	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800052	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800054	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800055	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800065	SIF	State Public Notification received	05-JUN-2018	State	-
1800058	1800066	SIF	State Public Notification received	05-JUN-2018	State	-
1800055	1800070	SIF	State Public Notification received	05-JUN-2018	State	-
1800055	1800071	SIF	State Public Notification received	05-JUN-2018	State	-
1800055	1800072	SIF	State Public Notification received	05-JUN-2018	State	-
1800055	1800074	SIF	State Public Notification received	05-JUN-2018	State	-
1800055	1800075	SIF	State Public Notification received	05-JUN-2018	State	-
1800055	1800076	SIF	State Public Notification received	05-JUN-2018	State	-

1 - 50 of 81

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
1	1	Yes	Intake	Surface water	Permanent	Active
43604363	43604363	No	Distribution System/Zone	-	-	Active
81	81	No	Other	-	-	Active
81	81T	No	Treatment Plant	-	-	Active
1	1T	No	Treatment Plant	-	-	Inactive

1 - 5 of 5

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
1	1T	Hypochlorination, Pre	Organics removal
81	81T	Filtration, Ultrafiltration	Particulate removal
81	81T	Fluoridation	Other
81	81T	Hypochlorination, Post	Disinfection
81	81T	Hypochlorination, Pre	Disinfection
81	81T	Inhibitor, Polyphosphate	Corrosion control
81	81T	pH Adjustment, Post	Corrosion control

1 - 7 of 7

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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