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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IA2915000
PWS Name	DANVILLE WATER SUPPLY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	923
County Served	Des Moines

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
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	128325	Returned to Compliance	01-DEC-2024	31-DEC-2024	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	74824	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	74924	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	212214	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	143214	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	37509	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	364608	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	224606	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	159006	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	129406	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	381105	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	295405	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	185205	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	149205	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1805	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	532084	Known	01-OCT-1983	30-SEP-1984	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	502884	Known	01-OCT-1983	30-SEP-1984	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Inorganic Chemicals	Fluoride	418584	Known	01-OCT-1983	30-SEP-1984	Yes
MR	Monitoring, Check/Repeat/Confirmation	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1005683	Known	01-JUL-1983	30-SEP-1983	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1139882	Known	01-OCT-1981	30-SEP-1982	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1680	Known	21-DEC-1979	20-OCT-1980	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	1580	Known	21-DEC-1979	20-OCT-1980	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	18181	Known	23-APR-1979	22-APR-1980	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	1131082	Known	23-APR-1979	22-APR-1980	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	1480	Known	23-APR-1979	22-OCT-1980	Yes

1 - 25 of 25

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
134323	128325	SOX	State Compliance achieved	01-JAN-2025	State	-
134321	74824	SIF	State Public Notification received	25-APR-2024	State	-
134320	74924	SIF	State Public Notification received	25-APR-2024	State	-
134314	212214	SOX	State Compliance achieved	14-MAY-2015	State	-
134313	143214	SOX	State Compliance achieved	14-MAY-2015	State	-
7	364608	SIF	State Public Notification received	11-MAY-2009	State	-
8	37509	SOX	State Compliance achieved	15-APR-2009	State	RAA is now 71.6 ug/L
133706	129406	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
133905	381105	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
134005	295405	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
133806	224606	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
134105	185205	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
133606	159006	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
134305	1805	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
134205	149205	SOX	State Compliance achieved	14-SEP-2006	State	4 QTR VALUES <80 MG/L
418584	502884	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
418584	532084	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
418584	418584	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
12981	1480	SO7	State Unresolved	19-JAN-1982	State	-
12981	1131082	SO7	State Unresolved	19-JAN-1982	State	-
12981	18181	SO7	State Unresolved	19-JAN-1982	State	-

1 - 21 of 21

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC FROM RATHBUN RWA (BURL), IA0400902	11517	Yes	Consecutive Connection	Surface water	Emergency	Inactive
PLUG #1 (1942)	9723	Yes	Well	Ground water	Other	Inactive
PLUG #2 (1957)	10429	Yes	Well	Ground water	Other	Inactive
CC FROM MIDDLETOWN, IA2952075	27193	Yes	Consecutive Connection	Surface water	Permanent	Active
CC FROM IAAP, IA2900900	35067	Yes	Consecutive Connection	Surface water	Permanent	Active
CC FROM BURLINGTON WS, IA2909053	15810	Yes	Consecutive Connection	Surface water	Permanent	Inactive
DISTRIBUTION SYSTEM	1251	No	Distribution System/Zone	-	-	Active
COMBINED DISTRIBUTION SYSTEM	31227	No	Distribution System/Zone	-	-	Active
GENERAL PWS FACILITY	22857	No	Other	-	-	Active
SS FROM MIDDLETOWN, IA2952075	27194	No	Sampling Station	-	-	Active
SS FROM RATHBUN (BURLING), IA0400902	11524	No	Sampling Station	-	-	Inactive
SS FROM BURLINGTON WS, IA2909053	15811	No	Sampling Station	-	-	Inactive
SS FROM IAAP, IA2900900	35068	No	Sampling Station	-	-	Inactive
TOTAL ELEVATED STORAGE	14812	No	Storage	-	-	Active
PLANT #1	17080	No	Treatment Plant	-	-	Active

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT #1	17080	Innovative	Disinfection
PLANT #1	17080	Innovative	Disinfection

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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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