Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1410250
PWS Name	HILLCREST
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1224
County Served	Ogle

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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7156091	Open	02-JUL-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7156092	Open	01-JUL-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7156088	Returned to Compliance	01-JUL-2024	31-JUL-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7156089	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7156087	Returned to Compliance	09-FEB-2024	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	7156053	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	7156055	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	7156054	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	7156084	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	7156083	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	7156085	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	7156080	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	7156079	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	7156078	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	7156077	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	7156076	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7156082	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	7156074	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	7156073	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	7156072	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	7156071	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	7156070	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	7156069	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	7156068	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	7156067	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	7156066	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	7156065	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	7156064	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	7156063	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	7156062	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	7156061	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	7156060	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	7156059	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	7156058	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	7156057	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	7156056	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7156018	Returned to Compliance	30-DEC-2018	-	No
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	7156016	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7156008	Returned to Compliance	01-MAR-2008	-	No
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	7156010	Returned to Compliance	01-JAN-2008	30-JUN-2008	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	7156009	Returned to Compliance	01-JAN-2008	30-JUN-2008	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	7156006	Returned to Compliance	01-JUL-2007	31-DEC-2007	No
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	7156007	Returned to Compliance	01-JUL-2007	31-DEC-2007	Yes
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	7155805	Returned to Compliance	03-FEB-2005	-	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2332494	Known	01-JAN-1994	31-JAN-1994	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1600792	Known	01-SEP-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1522992	Returned to Compliance	01-APR-1992	30-JUN-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1522892	Returned to Compliance	01-APR-1992	30-JUN-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1522792	Returned to Compliance	01-APR-1992	30-JUN-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1523092	Returned to Compliance	01-APR-1992	30-JUN-1992	No

1 - 50 of 58

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1812549	7156092	SIE	State Public Notification requested	29-JUL-2025	State	-
1812547	7156091	SIE	State Public Notification requested	03-JUL-2025	State	-
1812545	7156088	SIF	State Public Notification received	21-APR-2025	State	-
1812544	7156089	SIF	State Public Notification received	21-APR-2025	State	-
1812538	7156082	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156080	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156079	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156053	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156054	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156055	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156056	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156057	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156058	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156078	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156060	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156061	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156062	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156063	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156064	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156065	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156066	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156067	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156068	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156069	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156070	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156071	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156072	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156073	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156074	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156076	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156077	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156083	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156084	SIF	State Public Notification received	18-APR-2024	State	-
1812538	7156085	SIF	State Public Notification received	18-APR-2024	State	-
1812537	7156087	SOX	State Compliance achieved	18-APR-2024	State	-
1812538	7156059	SIF	State Public Notification received	18-APR-2024	State	-
1812530	7156018	SOX	State Compliance achieved	28-JAN-2019	State	-
1812526	7156016	SOX	State Compliance achieved	05-MAR-2018	State	Collected sample below 10 ppm (6.23). JL
1812521	7156007	SOX	State Compliance achieved	18-DEC-2008	State	Revisions took effect
1812521	7156010	SOX	State Compliance achieved	18-DEC-2008	State	Revisions took effect
1812518	7156009	SOX	State Compliance achieved	21-JUL-2008	State	Received form
1812513	7156008	SIA	State Violation/Reminder Notice	10-MAR-2008	State	-
1812506	7156006	SIA	State Violation/Reminder Notice	30-JAN-2008	State	-
1812405	7155805	SIA	State Violation/Reminder Notice	08-MAR-2005	State	-
1812294	2332494	SIA	State Violation/Reminder Notice	13-MAR-1994	State	-
1811993	1523292	SOX	State Compliance achieved	19-FEB-1993	State	-
1811993	1523192	SOX	State Compliance achieved	19-FEB-1993	State	-
1811993	1523092	SOX	State Compliance achieved	19-FEB-1993	State	-
1811993	1522992	SOX	State Compliance achieved	19-FEB-1993	State	-
1811993	1522792	SOX	State Compliance achieved	19-FEB-1993	State	-

1 - 50 of 57

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 2 (00336)	18156	Yes	Well	Ground water	Permanent	Active
WELL 1 (11788)	19622	Yes	Well	Ground water	Permanent	Active
HILLCREST	24715	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	28374	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30796	No	Sampling Station	-	-	Active
ELEVATED TANK - 50,000-GAL	45223	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11629	No	Storage	-	-	Inactive
TP 01-TREATMENT PLANT	16828	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-TREATMENT PLANT	16828	Inhibitor, Orthophosphate	Corrosion control
TP 01-TREATMENT PLANT	16828	Hypochlorination, Post	Disinfection

1 - 2 of 2

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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