Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1610100
PWS Name	CARBON CLIFF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2134
County Served	Rock Island

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7069544	Returned to Compliance	16-FEB-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069543	Returned to Compliance	01-OCT-2024	31-DEC-2024	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069542	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7069540	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069539	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7069538	Returned to Compliance	01-OCT-2022	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069537	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7069532	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7069531	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069529	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069525	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069524	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069520	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	7069516	Returned to Compliance	01-OCT-2009	31-OCT-2009	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7069515	Returned to Compliance	01-OCT-2009	31-OCT-2009	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7069517	Returned to Compliance	01-OCT-2009	31-DEC-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7069514	Returned to Compliance	01-JUL-2009	30-SEP-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7069513	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7069511	Returned to Compliance	17-JAN-2008	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069510	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)	7069509	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7069507	Returned to Compliance	07-JAN-2007	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069508	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)	7069407	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7069307	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7068603	Known	01-JUL-2003	31-JUL-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4587599	Known	01-JUL-1999	31-JUL-1999	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4131498	Known	01-APR-1998	30-APR-1998	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4131598	Known	01-APR-1998	30-APR-1998	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1693793	Known	01-DEC-1992	31-DEC-1992	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7068380	Known	30-JUN-1977	29-JUN-1981	No

1 - 31 of 31

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8174195	7069543	SOX	State Compliance achieved	11-JUN-2025	State	-
8174192	7069542	SIF	State Public Notification received	31-MAR-2025	State	-
8174184	7069544	SIA	State Violation/Reminder Notice	19-MAR-2025	State	-
8174177	7069538	SOX	State Compliance achieved	12-AUG-2024	State	-
8174176	7069540	SOX	State Compliance achieved	02-MAY-2024	State	-
8174172	7069539	SOX	State Compliance achieved	10-MAY-2023	State	-
8174167	7069537	SOX	State Compliance achieved	25-JAN-2022	State	-
8174162	7069532	SIF	State Public Notification received	10-SEP-2021	State	-
8174163	7069531	SIF	State Public Notification received	10-SEP-2021	State	-
8174156	7069529	SFK	State Bilateral Compliance Agreement signed	21-APR-2020	State	-
8174151	7069525	SOX	State Compliance achieved	30-JUN-2018	State	CWS RAA at the end of 2018Q2 = 5 pCi/L. Have maintained RAA < MCL for four consecutive quarters. pc 4/17/19
8174151	7069524	SOX	State Compliance achieved	30-JUN-2018	State	CWS RAA at the end of 2018Q2 = 5 pCi/L. Have maintained RAA < MCL for four consecutive quarters. pc 4/17/19
8174140	7069520	SOX	State Compliance achieved	17-JAN-2017	State	-
8174135	7069514	SIF	State Public Notification received	24-MAY-2010	State	-
8174135	7069516	SIF	State Public Notification received	24-MAY-2010	State	-
8174135	7069517	SIF	State Public Notification received	24-MAY-2010	State	-
8174136	7069515	SOX	State Compliance achieved	01-MAY-2010	State	Supply went 6 months without a coliform violation.
8174123	7069513	SOX	State Compliance achieved	20-FEB-2009	State	WS sent residuals in late
8174120	7069511	SIA	State Violation/Reminder Notice	13-FEB-2008	State	-
8174118	7069510	SIF	State Public Notification received	07-FEB-2008	State	-
8174108	7069307	SOX	State Compliance achieved	04-DEC-2007	State	Results sent in late from PDC
8174117	7069509	SOX	State Compliance achieved	22-OCT-2007	State	4010 RAA = 4 PCi/L.
8174117	7069508	SOX	State Compliance achieved	22-OCT-2007	State	4010 RAA = 4 PCi/L.
8174117	7069407	SOX	State Compliance achieved	22-OCT-2007	State	4010 RAA = 4 PCi/L.
8174107	7069507	SIA	State Violation/Reminder Notice	16-FEB-2007	State	-
104	7068603	SIF	State Public Notification received	20-OCT-2003	State	-
8171999	4587599	SIE	State Public Notification requested	15-SEP-1999	State	-
7222398	4131498	SIE	State Public Notification requested	27-JUN-1998	State	-
7222398	4131598	SIE	State Public Notification requested	27-JUN-1998	State	-
1821293	1693793	SIE	State Public Notification requested	13-FEB-1993	State	-

1 - 30 of 30

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 3 (01092)	18888	Yes	Well	Ground water	Permanent	Active
WELL 2 (31851)	20996	Yes	Well	Ground water	Permanent	Active
WELL 1 (31850)	20995	Yes	Well	Ground water	Permanent	Active
WELL 4 (01093)	18889	Yes	Well	Ground water	Permanent	Active
CARBON CLIFF	24880	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45978	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	28539	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30961	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11705	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12400	No	Storage	-	-	Active
TAP 01 GROUND STORAGE	13039	No	Storage	-	-	Active
TAP 02 PRESSURE STORAGE	14229	No	Storage	-	-	Active
DISTRIBUTION PRESSURE STORAGE	34434	No	Storage	-	-	Active
TP 01-WELLS 1 & 2	17064	No	Treatment Plant	-	-	Active
TP 02-WELLS 3 AND 4	17065	No	Treatment Plant	-	-	Active

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-WELLS 1 & 2	17064	Aeration, Slat Tray	Taste / odor control
TP 01-WELLS 1 & 2	17064	Fluoridation	Other
TP 01-WELLS 1 & 2	17064	Hypochlorination, Post	Disinfection
TP 02-WELLS 3 AND 4	17065	Fluoridation	Other
TP 02-WELLS 3 AND 4	17065	Hypochlorination, Post	Disinfection

1 - 5 of 5

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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