Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IA3130091
PWS Name	DYERSVILLE MUNICIPAL WATER CO
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	4477
County Served	Dubuque

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	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	142024	Returned to Compliance	01-APR-2021	31-MAR-2024	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	101017	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	43517	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	122916	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	83716	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	64516	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	210015	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	132415	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	92215	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	61415	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	209814	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	129714	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	85414	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	68914	Returned to Compliance	01-OCT-2013	31-DEC-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	60114	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	117313	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	42613	Returned to Compliance	01-JUL-2012	30-SEP-2012	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	994712	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	973212	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	235708	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	440007	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	362607	Returned to Compliance	01-JAN-2007	31-MAR-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	110207	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	16897	Returned to Compliance	01-OCT-1996	31-OCT-1996	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	150295	Returned to Compliance	01-JUN-1995	30-JUN-1995	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	141095	Returned to Compliance	01-MAR-1995	31-MAR-1995	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	123395	Returned to Compliance	01-FEB-1995	28-FEB-1995	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	52295	Returned to Compliance	01-JAN-1995	31-JAN-1995	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	16295	Returned to Compliance	01-NOV-1994	30-NOV-1994	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	16195	Returned to Compliance	01-NOV-1994	30-NOV-1994	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	16095	Returned to Compliance	01-JUL-1994	30-SEP-1994	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	146394	Returned to Compliance	01-MAR-1994	31-MAR-1994	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	282393	Returned to Compliance	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	282493	Returned to Compliance	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	282593	Returned to Compliance	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	154093	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	154293	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	24993	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	1V93	Returned to Compliance	01-JUL-1992	01-MAR-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	154193	Returned to Compliance	01-JUL-1992	30-JUN-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	170592	Returned to Compliance	01-JAN-1992	31-MAR-1992	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9003085	Known	01-APR-1985	30-JUN-1985	No

1 - 42 of 42

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
504633	142024	SIF	State Public Notification received	14-MAY-2025	State	via CCR
504620	101017	SIF	State Public Notification received	29-MAR-2017	State	via CCR
504621	43517	SIF	State Public Notification received	29-MAR-2017	State	via CCR
504629	209814	SOX	State Compliance achieved	05-DEC-2016	State	-
504608	132415	SOX	State Compliance achieved	05-DEC-2016	State	-
504628	129714	SOX	State Compliance achieved	05-DEC-2016	State	-
504612	122916	SOX	State Compliance achieved	05-DEC-2016	State	-
504609	210015	SOX	State Compliance achieved	05-DEC-2016	State	-
504623	994712	SOX	State Compliance achieved	05-DEC-2016	State	-
504622	973212	SOX	State Compliance achieved	05-DEC-2016	State	-
504625	60114	SOX	State Compliance achieved	05-DEC-2016	State	-
504624	117313	SOX	State Compliance achieved	05-DEC-2016	State	-
504607	92215	SOX	State Compliance achieved	05-DEC-2016	State	-
504627	85414	SOX	State Compliance achieved	05-DEC-2016	State	-
504611	83716	SOX	State Compliance achieved	05-DEC-2016	State	-
504626	68914	SOX	State Compliance achieved	05-DEC-2016	State	-
504610	64516	SOX	State Compliance achieved	05-DEC-2016	State	-
504606	61415	SOX	State Compliance achieved	05-DEC-2016	State	-
504522	42613	SIF	State Public Notification received	03-JUN-2013	State	Via CCR
6	362607	SOX	State Compliance achieved	08-JUL-2008	State	-
7	440007	SOX	State Compliance achieved	08-JUL-2008	State	-
8	235708	SOX	State Compliance achieved	08-JUL-2008	State	-
5	110207	SOX	State Compliance achieved	08-JUL-2008	State	-
1E00	170592	EOX	Federal Compliance achieved	24-JUL-2000	ODSWeb	-
370297	16897	SOX	State Compliance achieved	25-NOV-1996	State	-
205795	52295	SOX	State Compliance achieved	01-AUG-1995	State	-
263695	16295	SOX	State Compliance achieved	01-AUG-1995	State	-
183595	150295	SOX	State Compliance achieved	01-AUG-1995	State	-
248695	141095	SFJ	State Formal Notice of Violation issued	16-JUN-1995	State	-
26395	123395	SFJ	State Formal Notice of Violation issued	22-MAY-1995	State	-
98495	16195	SIF	State Public Notification received	07-FEB-1995	State	-
102895	16095	SIF	State Public Notification received	07-FEB-1995	State	-
206694	146394	SIF	State Public Notification received	12-JUL-1994	State	-
116693	282593	SOX	State Compliance achieved	27-JUN-1994	State	-
387393	282493	SOX	State Compliance achieved	27-JUN-1994	State	-
161693	154293	SOX	State Compliance achieved	27-JUN-1994	State	-
128993	24993	SFK	State Bilateral Compliance Agreement signed	27-JUN-1994	State	-
320993	282393	SOX	State Compliance achieved	27-JUN-1994	State	-
467393	154193	SOX	State Compliance achieved	27-JUN-1994	State	-
503093	154093	SOX	State Compliance achieved	27-JUN-1994	State	-
#000001	1V93	SOX	State Compliance achieved	05-AUG-1992	ODSWeb	Invalid Violation

1 - 41 of 41

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
PLUG #2 (1970)	12502	Yes	Well	Ground water	Other	Inactive
WELL #4 (1979)	7547	Yes	Well	Ground water	Permanent	Active
WELL #5 (1979)	27382	Yes	Well	Ground water	Permanent	Active
PLUG #1 (1959)	7442	Yes	Well	Ground water	Other	Inactive
PLUG #3 (1978)	13155	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	1493	No	Distribution System/Zone	-	-	Active
GENERAL PWS FACILITY	23098	No	Other	-	-	Active
CC TO GO THE DISTANCE, IA3130203	36755	No	Other	-	-	Active
FINISHED WATER TAP, #5	27383	No	Sampling Station	-	-	Active
FINISHED WATER TAP, #4	7134	No	Sampling Station	-	-	Active
S/EP FM WELL #2-1970	7135	No	Sampling Station	-	-	Inactive
PLUGGED WELL #3 (1978)	7136	No	Sampling Station	-	-	Inactive
GROUND STORAGE NEAR WELL #4	15169	No	Storage	-	-	Active
ELEVATED STORAGE TANK	32680	No	Storage	-	-	Active
HYDROPNEUMATIC STORAGE - CASTLE HILL	36249	No	Storage	-	-	Active
HYDROPNEUMATIC STORAGE - FIELD OF DREAMS	36792	No	Storage	-	-	Active
TOTAL ELEVATED STORAGE	15170	No	Storage	-	-	Inactive
GROUND STORAGE NEAR WELL #5	29479	No	Storage	-	-	Inactive
PLANT #4	17196	No	Treatment Plant	-	-	Active
PLANT #5	27384	No	Treatment Plant	-	-	Active
PLANT #3	17193	No	Treatment Plant	-	-	Inactive
PLANT #2	17194	No	Treatment Plant	-	-	Inactive
PLANT #1	17195	No	Treatment Plant	-	-	Inactive

1 - 23 of 23

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT #4	17196	Innovative	Disinfection
PLANT #4	17196	Coagulation	Radionuclides removal
PLANT #4	17196	Innovative	Radionuclides removal
PLANT #4	17196	Innovative	Radionuclides removal
PLANT #4	17196	Innovative	Radionuclides removal
PLANT #4	17196	Innovative	Disinfection
PLANT #4	17196	Innovative	Corrosion control
PLANT #4	17196	Innovative	Corrosion control
PLANT #5	27384	Innovative	Disinfection
PLANT #5	27384	Innovative	Disinfection
PLANT #5	27384	Innovative	Corrosion control
PLANT #5	27384	Innovative	Corrosion control

1 - 12 of 12

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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