Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IA2417018
PWS Name	CHARTER OAK WATER SUPPLY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	522
County Served	Crawford

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 and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	233819	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	233719	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	55715	Returned to Compliance	01-NOV-2014	30-NOV-2014	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	224203	Returned to Compliance	01-MAY-2003	31-MAY-2003	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	489302	Returned to Compliance	01-JUN-2002	30-JUN-2002	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	222101	Returned to Compliance	01-MAY-2001	31-MAY-2001	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	23196	Returned to Compliance	01-NOV-1995	30-NOV-1995	No
MCL	Maximum Contaminant Level Violation, Single Sample	Volatile Organic Chemicals	Benzene	102294	Returned to Compliance	01-JAN-1994	31-MAR-1994	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	114694	Returned to Compliance	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	40094	Returned to Compliance	01-OCT-1993	31-DEC-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	41492	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	43892	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	43692	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	43592	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	43492	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	43292	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	43092	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	41192	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	42992	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	42692	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	42292	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	42792	Returned to Compliance	01-JUL-1990	31-JUL-1990	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	57490	Returned to Compliance	01-OCT-1989	31-DEC-1989	No

1 - 23 of 23

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
798712	233719	SOX	State Compliance achieved	22-JUL-2020	State	-
798714	233819	SOX	State Compliance achieved	22-JUL-2020	State	-
798706	55715	SIF	State Public Notification received	20-FEB-2015	State	-
798603	224203	SFJ	State Formal Notice of Violation issued	24-JUN-2003	State	-
798302	489302	SOX	State Compliance achieved	31-DEC-2002	State	-
797801	222101	SOX	State Compliance achieved	31-DEC-2001	State	-
179194	102294	SOX	State Compliance achieved	03-JUN-1996	State	-
78694	40094	SOX	State Compliance achieved	03-JUN-1996	State	-
194996	23196	SFJ	State Formal Notice of Violation issued	29-JAN-1996	State	-
207594	114694	SIF	State Public Notification received	26-OCT-1994	State	-
262792	43292	SOX	State Compliance achieved	22-FEB-1993	State	-
509292	43492	SOX	State Compliance achieved	22-FEB-1993	State	-
300692	43592	SOX	State Compliance achieved	22-FEB-1993	State	-
596492	43692	SOX	State Compliance achieved	22-FEB-1993	State	-
632892	43892	SOX	State Compliance achieved	22-FEB-1993	State	-
79192	43092	SOX	State Compliance achieved	22-FEB-1993	State	-
566492	42992	SOX	State Compliance achieved	22-FEB-1993	State	-
188092	42792	SOX	State Compliance achieved	22-FEB-1993	State	-
114392	42692	SOX	State Compliance achieved	22-FEB-1993	State	-
652992	42292	SOX	State Compliance achieved	22-FEB-1993	State	-
453092	41492	SOX	State Compliance achieved	22-FEB-1993	State	-
485592	41192	SOX	State Compliance achieved	22-FEB-1993	State	-
118590	57490	SIF	State Public Notification received	10-OCT-1990	State	-

1 - 23 of 23

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC FROM W CENTRAL RW-DENISON, IA2424701	27311	Yes	Consecutive Connection	Ground water	Permanent	Active
PLUGGED WELL # 5 (1955)	8570	Yes	Well	Ground water	Other	Inactive
WELL # 8 (1996)	7396	Yes	Well	Ground water	Other	Inactive
PLUGGED WELL # 4 (1953)	13312	Yes	Well	Ground water	Other	Inactive
PLUGGED WELL # 3 (1951)	11826	Yes	Well	Ground water	Other	Inactive
WELL # 7 (1988)	11260	Yes	Well	Ground water	Other	Inactive
WELL # 6 (1967)	10716	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	1033	No	Distribution System/Zone	-	-	Active
COMBINED DISTRIBUTION SYSTEM	31336	No	Distribution System/Zone	-	-	Inactive
GENERAL PWS FACILITY	22639	No	Other	-	-	Active
SS FROM W CENTRAL RW-DENISON, IA2424701	36181	No	Sampling Station	-	-	Active
WELL # 6 @ WATER PLANT	4886	No	Sampling Station	-	-	Inactive
WELLS #6_#8 @ WATER PLANT	4888	No	Sampling Station	-	-	Inactive
STANDPIPE STORAGE- 0.08 MG	14078	No	Storage	-	-	Active
CLEARWELL STORAGE-0.03MG	31564	No	Storage	-	-	Inactive
TREATMENT PLANT #1	16998	No	Treatment Plant	-	-	Inactive

1 - 16 of 16

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT #1	16998	Innovative	Manganese removal
TREATMENT PLANT #1	16998	Permanganate	Manganese removal
TREATMENT PLANT #1	16998	Sequestration	Manganese removal
TREATMENT PLANT #1	16998	Innovative	Manganese removal
TREATMENT PLANT #1	16998	Innovative	Manganese removal
TREATMENT PLANT #1	16998	Innovative	Manganese removal
TREATMENT PLANT #1	16998	Innovative	Manganese removal
TREATMENT PLANT #1	16998	Innovative	Disinfection
TREATMENT PLANT #1	16998	Innovative	Disinfection
TREATMENT PLANT #1	16998	Innovative	Other
TREATMENT PLANT #1	16998	Fluoridation	Other
TREATMENT PLANT #1	16998	Innovative	Iron removal
TREATMENT PLANT #1	16998	Innovative	Iron removal
TREATMENT PLANT #1	16998	Innovative	Iron removal
TREATMENT PLANT #1	16998	Innovative	Iron removal
TREATMENT PLANT #1	16998	Innovative	Iron removal
TREATMENT PLANT #1	16998	Innovative	Iron removal
TREATMENT PLANT #1	16998	Permanganate	Iron removal

1 - 18 of 18

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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