Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI1250087
PWS Name	RIDGEWAY WATERWORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	690
County Served	Iowa

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2500087	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2600089	Known	01-JAN-2025	31-DEC-2025	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2400066	Known	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2400065	Known	01-APR-2024	30-JUN-2024	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600063	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1600064	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	0900062	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	0900061	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0500060	Returned to Compliance	01-SEP-2005	30-SEP-2005	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0300059	Returned to Compliance	01-AUG-2003	31-AUG-2003	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0300037	Returned to Compliance	01-MAR-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	0300044	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	0300039	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	0300040	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	0300041	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	0300042	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	0300043	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	0300045	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	0300046	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	0300047	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	0300048	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	0300049	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	0300050	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	0300051	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	0300052	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0300053	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0300054	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0300055	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0300056	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0300057	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	0300058	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	0300038	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	0300017	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0300031	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0300033	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	0300016	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	0300036	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0300035	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	0300018	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	0300019	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0300032	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	0300020	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	0300021	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	0300022	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	0300023	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	0300024	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	0300025	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	0300026	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	0300027	Returned to Compliance	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	0300028	Returned to Compliance	01-OCT-2002	31-DEC-2002	No

1 - 50 of 59

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2600104	2600089	SIE	State Public Notification requested	04-NOV-2025	State	-
2500100	2500087	SOX	State Compliance achieved	18-SEP-2025	State	-
2500094	2400065	SIB	State Compliance Meeting conducted	21-OCT-2024	State	-
2500095	2400066	SIB	State Compliance Meeting conducted	21-OCT-2024	State	-
1700059	1600064	SOX	State Compliance achieved	15-AUG-2016	State	-
1700059	1600063	SOX	State Compliance achieved	15-AUG-2016	State	-
0900052	0900061	SIF	State Public Notification received	24-JUN-2009	State	-
0900054	0900062	SIF	State Public Notification received	24-JUN-2009	State	-
0600047	0500060	SIF	State Public Notification received	12-OCT-2005	State	-
0400042	0300059	SIF	State Public Notification received	01-OCT-2003	State	-
0300037	0300049	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300048	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300047	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300046	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300045	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300044	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300043	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300042	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300041	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300040	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300039	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300038	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300055	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300056	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300057	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300058	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300050	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300051	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300052	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300054	SIF	State Public Notification received	26-JUN-2003	State	-
0300037	0300053	SIF	State Public Notification received	26-JUN-2003	State	-
0300031	0300037	SIF	State Public Notification received	23-MAY-2003	State	-
0300028	0300032	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300031	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300030	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300029	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300028	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300027	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300026	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300025	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300024	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300023	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300022	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300021	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300020	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300019	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300018	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300017	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300016	SOX	State Compliance achieved	14-MAY-2003	State	-
0300028	0300034	SOX	State Compliance achieved	14-MAY-2003	State	-

1 - 50 of 59

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BF968	1	Yes	Well	Ground water	Emergency	Active
BF969	2	Yes	Well	Ground water	Permanent	Active
12500873	12500873	No	Distribution System/Zone	-	-	Active
BF968	1T	No	Treatment Plant	-	-	Active
BF969	2T	No	Treatment Plant	-	-	Active

1 - 5 of 5

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BF968	1T	Hypochlorination, Post	Disinfection
BF969	2T	Hypochlorination, Post	Disinfection

1 - 2 of 2

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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