Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1610650
PWS Name	ROCK ISLAND
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	39018
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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7163052	Open	01-JUL-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7163050	Returned to Compliance	01-OCT-2023	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	7163049	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	7163030	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	7163015	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	7163016	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	7163017	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	7163018	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	7163019	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	7163020	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	7163021	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	7163046	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	7163045	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	7163047	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	7163042	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	7163041	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	7163040	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	7163039	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	7163038	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7163044	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	7163036	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	7163035	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	7163034	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	7163033	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	7163032	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	7163031	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	7163029	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	7163028	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	7163027	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	7163026	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	7163025	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	7163024	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	7163023	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	7163022	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7163009	Returned to Compliance	01-AUG-2007	31-AUG-2007	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7163006	Returned to Compliance	01-JUL-2006	31-JUL-2006	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3914397	Known	01-JUL-1997	31-JUL-1997	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3914197	Known	01-JUN-1997	30-JUN-1997	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2168694	Known	01-OCT-1993	31-OCT-1993	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2168593	Known	01-SEP-1993	30-SEP-1993	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2168493	Known	01-AUG-1993	31-AUG-1993	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	610088	Returned to Compliance	01-AUG-1988	31-JUL-1989	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	376987	Known	01-AUG-1987	31-JUL-1988	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	276186	Known	14-AUG-1986	13-AUG-1987	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7162080	Known	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
6838137	7163052	SIA	State Violation/Reminder Notice	05-AUG-2025	State	-
6838134	7163049	SOX	State Compliance achieved	13-JUN-2024	State	-
6838132	7163050	SIF	State Public Notification received	03-JUN-2024	State	-
6838126	7163026	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163047	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163046	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163045	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163044	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163042	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163041	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163015	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163016	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163017	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163018	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163019	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163020	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163021	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163022	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163023	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163024	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163025	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163027	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163028	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163029	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163030	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163031	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163032	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163033	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163034	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163035	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163036	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163038	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163039	SOX	State Compliance achieved	04-MAY-2021	State	-
6838126	7163040	SOX	State Compliance achieved	04-MAY-2021	State	-
6838115	7163009	SOX	State Compliance achieved	01-MAR-2008	State	Supply 6 months without a coliform violation.
6838112	7163006	SIF	State Public Notification received	22-AUG-2007	State	-
6836198	3914197	SIF	State Public Notification received	24-NOV-1997	State	-
6836398	3914397	SIE	State Public Notification requested	12-OCT-1997	State	-
137389	610088	SOX	State Compliance achieved	18-NOV-1988	State	-
587	376987	SFG	State Public Notification issued	30-SEP-1987	State	-
586	276186	SFG	State Public Notification issued	30-SEP-1986	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC02-EMERGENCY 1ST AVENUE	26523	Yes	Consecutive Connection	Surface water	Emergency	Active
INTAKE (31948) MISSISSIPPI RIVER	25656	Yes	Intake	Surface water	Permanent	Active
CC03-EMERGENCY 19TH AVENUE	26524	Yes	Consecutive Connection	Surface water	Emergency	Active
CC04-EMERGENCY WILDWOOD	26525	Yes	Consecutive Connection	Surface water	Emergency	Active
CC05-EMERGENCY WILDERNESS CT	26526	Yes	Consecutive Connection	Surface water	Emergency	Active
CC06-EMERGENCY DEER RUN	26527	Yes	Consecutive Connection	Surface water	Emergency	Active
ROCK ISLAND	24894	No	Distribution System/Zone	-	-	Active
IDSE	35254	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45997	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	46003	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	28553	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30975	No	Sampling Station	-	-	Active
SSIN31948	33671	No	Sampling Station	-	-	Active
LT2-SAMPLE STATION	35108	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11713	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12406	No	Storage	-	-	Active
TAP 01-GROUND STORAGE	33417	No	Storage	-	-	Active
TP 01-SURFACE WATER TREATMENT PLANT	17079	No	Treatment Plant	-	-	Active

1 - 18 of 18

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-SURFACE WATER TREATMENT PLANT	17079	Gaseous Chlorination, Pre	Taste / odor control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Permanganate	Taste / odor control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Coagulation	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	pH Adjustment, Post	Corrosion control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Gaseous Chlorination, Post	Disinfection
TP 01-SURFACE WATER TREATMENT PLANT	17079	Fluoridation	Other
TP 01-SURFACE WATER TREATMENT PLANT	17079	Activated Carbon, Powdered	Organics removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Coagulation	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Reducing Agents	De-chlorination
TP 01-SURFACE WATER TREATMENT PLANT	17079	Activated Carbon, Granular	Taste / odor control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Filtration, Rapid Sand	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Inhibitor, Bimetallic Phospate	Corrosion control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Rapid Mix	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Sedimentation	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Chloramines	Disinfection
TP 01-SURFACE WATER TREATMENT PLANT	17079	Gaseous Chlorination, Pre	Disinfection
TP 01-SURFACE WATER TREATMENT PLANT	17079	Chloramines	Disinfection by-products control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Coagulation	Disinfection by-products control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Rapid Mix	Disinfection by-products control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Coagulation	Disinfection by-products control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Rapid Mix	Disinfection by-products control
TP 01-SURFACE WATER TREATMENT PLANT	17079	Gaseous Chlorination, Pre	Iron removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Gaseous Chlorination, Pre	Manganese removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Coagulation	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Rapid Mix	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Coagulation	Particulate removal
TP 01-SURFACE WATER TREATMENT PLANT	17079	Rapid Mix	Particulate 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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