Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0370100
PWS Name	DEKALB
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	45000
County Served	DeKalb

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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7020522	Returned to Compliance	01-JUL-2025	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7020514	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7020508	Returned to Compliance	01-JUN-2018	30-JUN-2018	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7020509	Returned to Compliance	01-APR-2018	30-JUN-2018	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7020506	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4655700	Known	01-OCT-1999	31-OCT-1999	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	4270299	Returned to Compliance	01-DEC-1998	14-MAY-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5387095	Returned to Compliance	01-JAN-1995	30-NOV-1998	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2736095	Returned to Compliance	01-DEC-1994	30-NOV-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1549992	Known	01-AUG-1992	31-AUG-1992	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	1891093	Returned to Compliance	01-APR-1992	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1455692	Known	01-FEB-1992	29-FEB-1992	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1317491	Known	01-APR-1991	30-APR-1991	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1260991	Returned to Compliance	21-DEC-1990	20-DEC-1994	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7019980	Returned to Compliance	30-JUN-1977	29-JUN-1981	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8357122	7020522	SOX	State Compliance achieved	21-NOV-2025	State	-
8357118	7020514	SIF	State Public Notification received	30-JAN-2024	State	-
8357111	7020509	SIF	State Public Notification received	29-MAR-2019	State	-
8357112	7020508	SIF	State Public Notification received	29-MAR-2019	State	-
8357105	7020506	SOX	State Compliance achieved	20-APR-2011	State	Sample 1103C31-001A collected 3/29/11 and submitted into SDWIS 4/20/11.
8356802	2736095	SOX	State Compliance achieved	14-MAY-2002	State	-
8356802	4270299	SOX	State Compliance achieved	14-MAY-2002	State	-
8356802	7019980	SOX	State Compliance achieved	14-MAY-2002	State	-
8356802	1260991	SOX	State Compliance achieved	14-MAY-2002	State	-
8356802	5387095	SOX	State Compliance achieved	14-MAY-2002	State	-
8356600	4655700	SIE	State Public Notification requested	15-DEC-1999	State	-
2059593	1891093	SOX	State Compliance achieved	22-SEP-1993	State	-
1339892	1549992	SIE	State Public Notification requested	27-SEP-1992	State	-
1134692	1455692	SIE	State Public Notification requested	27-MAR-1992	State	-
1134891	1317491	SIE	State Public Notification requested	01-JUN-1991	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 4 (11401) ABANDONED	19339	Yes	Well	Ground water	Other	Inactive
WELL 12 (11408)	19346	Yes	Well	Ground water	Permanent	Active
WELL 11 (11407)	19345	Yes	Well	Ground water	Permanent	Active
WELL 10 (11406)	19344	Yes	Well	Ground water	Permanent	Active
WELL 7 (11403)	19341	Yes	Well	Ground water	Permanent	Active
WELL 17 (01313)	19096	Yes	Well	Ground water	Permanent	Active
WELL 16 (01247)	19039	Yes	Well	Ground water	Permanent	Active
WELL 15 (01235)	19027	Yes	Well	Ground water	Permanent	Active
WELL 14 (00275)	18096	Yes	Well	Ground water	Permanent	Active
WELL 13 (00274)	18095	Yes	Well	Ground water	Permanent	Active
WELL 9 (11405) ABANDONED	19343	Yes	Well	Ground water	Other	Inactive
WELL 8 (11404) ABANDONED	19342	Yes	Well	Ground water	Other	Inactive
WELL 6 (11402) ABANDONED	19340	Yes	Well	Ground water	Other	Inactive
DE KALB	23514	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46541	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46542	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27173	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29595	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47074	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47075	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47076	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47077	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47078	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11053	No	Storage	-	-	Active
TP 03-WELL #7 ION-EXCHANGE SOFTENING	15047	No	Treatment Plant	-	-	Active
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	No	Treatment Plant	-	-	Active
TP 07-WELL #11 ION-EXCHANGE SOFTENING	15051	No	Treatment Plant	-	-	Active
TP 09-WELL #12 & #13 ION-EXCHANGE	15053	No	Treatment Plant	-	-	Active
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	No	Treatment Plant	-	-	Active
TP 01-WELL 4 (ABANDONED)	15045	No	Treatment Plant	-	-	Inactive
TP 02-WELL 6 (ABANDONED)	15046	No	Treatment Plant	-	-	Inactive
TP 04-WELLSITE 5 (ABANDONED)	15048	No	Treatment Plant	-	-	Inactive
TP 05-WELLSITE 9 (ABANDONED)	15049	No	Treatment Plant	-	-	Inactive
TP 08-WELL 12 (INACTIVE)	15052	No	Treatment Plant	-	-	Inactive
TP 11-NORTH TANK (INACTIVE)	22803	No	Treatment Plant	-	-	Inactive
TP 12-SOUTH TANK (INACTIVE)	22804	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 03-WELL #7 ION-EXCHANGE SOFTENING	15047	Fluoridation	Other
TP 03-WELL #7 ION-EXCHANGE SOFTENING	15047	Ion Exchange	Radionuclides removal
TP 03-WELL #7 ION-EXCHANGE SOFTENING	15047	Gaseous Chlorination, Post	Disinfection
TP 03-WELL #7 ION-EXCHANGE SOFTENING	15047	Inhibitor, Orthophosphate	Corrosion control
TP 03-WELL #7 ION-EXCHANGE SOFTENING	15047	Gaseous Chlorination, Pre	Taste / odor control
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Fluoridation	Other
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Inhibitor, Orthophosphate	Corrosion control
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Gaseous Chlorination, Post	Disinfection
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Aeration, Slat Tray	Iron removal
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Ion Exchange	Inorganics removal
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Filtration, Rapid Sand	Iron removal
TP 06-WELL #10 & #15 IRON FILT & ION-EXC	15050	Gaseous Chlorination, Pre	Iron removal
TP 07-WELL #11 ION-EXCHANGE SOFTENING	15051	Fluoridation	Other
TP 07-WELL #11 ION-EXCHANGE SOFTENING	15051	Inhibitor, Orthophosphate	Corrosion control
TP 07-WELL #11 ION-EXCHANGE SOFTENING	15051	Gaseous Chlorination, Post	Disinfection
TP 07-WELL #11 ION-EXCHANGE SOFTENING	15051	Ion Exchange	Radionuclides removal
TP 09-WELL #12 & #13 ION-EXCHANGE	15053	Fluoridation	Other
TP 09-WELL #12 & #13 ION-EXCHANGE	15053	Gaseous Chlorination, Post	Disinfection
TP 09-WELL #12 & #13 ION-EXCHANGE	15053	Inhibitor, Orthophosphate	Corrosion control
TP 09-WELL #12 & #13 ION-EXCHANGE	15053	Ion Exchange	Radionuclides removal
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Ion Exchange	Softening (hardness removal)
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Filtration, Rapid Sand	Iron removal
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Filtration, Rapid Sand	Inorganics removal
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Aeration, Slat Tray	Iron removal
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Gaseous Chlorination, Post	Disinfection
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Inhibitor, Orthophosphate	Corrosion control
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Fluoridation	Other
TP 10-WELL 14, 16, 17 ION-EXCHANGE	15054	Gaseous Chlorination, Pre	Iron removal

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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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