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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.

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Violations

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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, Regular	Nitrate Rule	Nitrate	2528511	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2083730	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2083731	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2084467	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2083749	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2083748	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2083732	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2084211	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2084376	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1537881	Returned to Compliance	01-JUL-2015	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9751312	Known	01-SEP-1997	30-SEP-1997	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8050517	Known	01-OCT-1979	31-OCT-1979	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2484211ENF	2084211	SOX	State Compliance achieved	21-JUL-2021	State	-
2483731ENF	2083731	SOX	State Compliance achieved	21-JUL-2021	State	-
2483732ENF	2083732	SOX	State Compliance achieved	24-MAR-2021	State	-
2483730ENF	2083730	SOX	State Compliance achieved	24-MAR-2021	State	-
2483748ENF	2083748	SOX	State Compliance achieved	24-MAR-2021	State	-
2484467ENF	2084467	SOX	State Compliance achieved	24-MAR-2021	State	-
2483749ENF	2083749	SOX	State Compliance achieved	24-MAR-2021	State	-
2484376ENF	2084376	SOX	State Compliance achieved	24-MAR-2021	State	-
37881ENF	1537881	SOX	State Compliance achieved	03-SEP-2015	State	-
9709013	9751312	SIF	State Public Notification received	30-SEP-1997	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CITY WELLS - AFL853	13135	Yes	Infiltration Gallery	Ground water	Seasonal	Active
BROOKLANE	13141	Yes	Well	Ground water	Seasonal	Active
AIRPORT WELL	27862	Yes	Well	Ground water	Permanent	Inactive
Illinois - AAR986	34019	Yes	Well	Ground water	Permanent	Active
AIRPORT WELL 3 - BCF685	32510	Yes	Well	Ground water	Permanent	Active
HAYWARD WELL - AAS252	32351	Yes	Well	Ground water	Permanent	Active
ROUTE 10 WELL - AAS152	32350	Yes	Well	Ground water	Permanent	Active
WHITNEY PARK - AFK916	13140	Yes	Well	Ground water	Permanent	Active
KIWANIS PARK WELL - ABR092	13139	Yes	Well	Ground water	Permanent	Active
MT. STUART	13138	Yes	Well	Ground water	Permanent	Active
MEMORIAL	13137	Yes	Well	Ground water	Permanent	Active
RODEO	13136	Yes	Well	Ground water	Permanent	Active
City Well	2822	No	Treatment Plant	-	-	Active
Rodeo	2824	No	Treatment Plant	-	-	Active
Memorial	2826	No	Treatment Plant	-	-	Active
Mt. Stuart	2828	No	Treatment Plant	-	-	Active
Kiwanis Park	2831	No	Treatment Plant	-	-	Active
Whitney Park	2832	No	Treatment Plant	-	-	Active
Brooklane	2834	No	Treatment Plant	-	-	Active
Airport Well	2835	No	Treatment Plant	-	-	Active
Route 10 Well	4824	No	Treatment Plant	-	-	Active
Hayward Well	4825	No	Treatment Plant	-	-	Active
AIRPORT WELL 3 - BCG685	4911	No	Treatment Plant	-	-	Active
S12 Chlorination and Fluoridation	5564	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
City Well	2822	Gaseous Chlorination, Post	Disinfection
City Well	2822	Fluoridation	Other
Rodeo	2824	Gaseous Chlorination, Post	Disinfection
Rodeo	2824	Fluoridation	Other
Memorial	2826	Gaseous Chlorination, Post	Disinfection
Memorial	2826	Fluoridation	Other
Mt. Stuart	2828	Gaseous Chlorination, Post	Disinfection
Mt. Stuart	2828	Fluoridation	Other
Kiwanis Park	2831	Gaseous Chlorination, Post	Disinfection
Kiwanis Park	2831	Fluoridation	Other
Whitney Park	2832	Gaseous Chlorination, Post	Disinfection
Whitney Park	2832	Fluoridation	Other
Brooklane	2834	Hypochlorination, Post	Disinfection
Brooklane	2834	Fluoridation	Other
Airport Well	2835	Hypochlorination, Post	Disinfection
Airport Well	2835	Fluoridation	Other
Route 10 Well	4824	Gaseous Chlorination, Post	Disinfection
Route 10 Well	4824	Fluoridation	Other
Hayward Well	4825	Gaseous Chlorination, Post	Disinfection
Hayward Well	4825	Fluoridation	Other
AIRPORT WELL 3 - BCG685	4911	Gaseous Chlorination, Post	Disinfection
AIRPORT WELL 3 - BCG685	4911	Fluoridation	Other
S12 Chlorination and Fluoridation	5564	Gaseous Chlorination, Post	Disinfection
S12 Chlorination and Fluoridation	5564	Fluoridation	Other

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