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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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	20230015993	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	20230013105	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	20230010603	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	20180011576	Returned to Compliance	01-JUL-2018	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	20070000696	Known	01-OCT-2006	31-OCT-2006	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	20040009703	Known	01-MAY-2004	31-MAY-2004	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	20040007967	Known	01-MAR-2004	31-MAR-2004	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	20030004753	Returned to Compliance	01-JUL-2003	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0003905	Known	01-APR-2000	30-APR-2000	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	91V0001	Known	01-AUG-1991	31-AUG-1991	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
642059	20230013105	SOX	State Compliance achieved	05-JUN-2024	State	-
642059	20230010603	SOX	State Compliance achieved	05-JUN-2024	State	-
642059	20230015993	SOX	State Compliance achieved	05-JUN-2024	State	-
518923	20180011576	SOX	State Compliance achieved	31-JUL-2018	State	-
165098	20040007967	SIA	State Violation/Reminder Notice	25-JUN-2004	State	-
152739	20030004753	SOX	State Compliance achieved	06-AUG-2003	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
Water Transaction	4359753360	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL #2	77427578	Yes	Well	Ground water	Permanent	Active
WELL#1 8" 96'/223' 500 GPM	77417577	Yes	Well	Ground water	Permanent	Active
WELL#2 12" 200'/360' 1000 GPM	77407576	Yes	Well	Ground water	Permanent	Active
WELL#1 10" 147'/361' 600 GPM	77397575	Yes	Well	Ground water	Permanent	Active
HEA-5	77387575	Yes	Well	Ground water	Permanent	Active
HEA-4	77377573	Yes	Well	Ground water	Permanent	Active
HEA-2	77367572	Yes	Well	Ground water	Permanent	Active
MAR-4	4359752437	Yes	Well	Ground water	Permanent	Active
WELL #1R	4359752436	Yes	Well	Ground water	Permanent	Active
ASR WELL	4359752255	Yes	Well	Ground water	Permanent	Active
HEA-1	4359743177	Yes	Well	Ground water	Permanent	Active
MAR-3	319377575	Yes	Well	Ground water	Permanent	Active
MAR-2	293957575	Yes	Well	Ground water	Permanent	Active
MAR-1	293947575	Yes	Well	Ground water	Permanent	Active
HEA-6	257367572	Yes	Well	Ground water	Permanent	Active
MARKHAM REGIONAL WTP	249523594107	No	Treatment Plant	-	-	Active
HEATHROW P.U.D.	66773594107	No	Treatment Plant	-	-	Active
HANOVER WOODS	66783594107	No	Treatment Plant	-	-	Active
LAKE MONROE (I-4 INDUST.PARK)	66793594107	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
MARKHAM REGIONAL WTP	249523594107	Hypochlorination, Post	Disinfection
MARKHAM REGIONAL WTP	249523594107	Ozonation, Post	Disinfection
MARKHAM REGIONAL WTP	249523594107	Aeration, Slat Tray	Taste / odor control
MARKHAM REGIONAL WTP	249523594107	Ion Exchange	Organics removal
MARKHAM REGIONAL WTP	249523594107	Hypochlorination, Pre	Other
MARKHAM REGIONAL WTP	249523594107	Aeration, Slat Tray	Other
MARKHAM REGIONAL WTP	249523594107	Fluoridation	Other
HEATHROW P.U.D.	66773594107	Hypochlorination, Post	Disinfection
HEATHROW P.U.D.	66773594107	Aeration, Slat Tray	Taste / odor control
HEATHROW P.U.D.	66773594107	Fluoridation	Other
HANOVER WOODS	66783594107	Hypochlorination, Post	Disinfection
HANOVER WOODS	66783594107	Aeration, Slat Tray	Taste / odor control
HANOVER WOODS	66783594107	Fluoridation	Other
LAKE MONROE (I-4 INDUST.PARK)	66793594107	Hypochlorination, Post	Disinfection
LAKE MONROE (I-4 INDUST.PARK)	66793594107	Aeration, Slat Tray	Taste / odor control

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