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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
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3477521	Open	16-NOV-2023	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3477519	Open	01-JAN-2022	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	3477296	Returned to Compliance	01-JAN-1996	31-MAR-1996	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	3477096	Returned to Compliance	01-JAN-1996	31-MAR-1996	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	3477396	Returned to Compliance	01-JAN-1996	31-MAR-1996	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
1217	3477521	SIA	State Violation/Reminder Notice	17-NOV-2023	State	-
1214	3477519	SIA	State Violation/Reminder Notice	03-JAN-2023	State	-
1196	3477296	SIE	State Public Notification requested	31-MAY-1996	State	-
1196	3477396	SIE	State Public Notification requested	31-MAY-1996	State	-
1196	3477096	SIE	State Public Notification requested	31-MAY-1996	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
WELL 2 (NORTH)	15480	Yes	Well	Ground water	Permanent	Active
WELL 1 (SOUTH)	15481	Yes	Well	Ground water	Permanent	Inactive
WELL 3 (EAST)	47337	Yes	Well	Ground water	Permanent	Active
WELL 4 (WEST)	47331	Yes	Well	Ground water	Permanent	Active
CLEARWELL 1	32945	No	Clear Well	-	-	Inactive
CLEARWELL 2	32946	No	Clear Well	-	-	Inactive
PUMPING WELL	45222	No	Clear Well	-	-	Inactive
MENDON VILLAGE DISTRIBUTION	27343	No	Distribution System/Zone	-	-	Active
TRANSFER PUMP	32944	No	Pump Facility	-	-	Active
HIGH SERVICE PUMP	32947	No	Pump Facility	-	-	Active
Mendon, Village Of P01	100058	No	Sampling Station	-	-	Inactive
ELEVATED TANK JEFFERSON ST	45605	No	Storage	-	-	Active
CLEARWELL 3 PUMPING WELL	46143	No	Storage	-	-	Active
CLEARWELL 1	46220	No	Storage	-	-	Active
CLEARWELL 2	46397	No	Storage	-	-	Active
ELEVATED TANK OLD	32943	No	Storage	-	-	Inactive
MENDON VILLAGE	5568	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
MENDON VILLAGE	5568	Aeration, Diffused	Iron removal
MENDON VILLAGE	5568	Filtration, Greensand	Manganese removal
MENDON VILLAGE	5568	Filtration, Greensand	Iron removal
MENDON VILLAGE	5568	Ion Exchange	Softening (hardness removal)
MENDON VILLAGE	5568	Inhibitor, Orthophosphate	Corrosion control
MENDON VILLAGE	5568	Hypochlorination, Post	Disinfection
MENDON VILLAGE	5568	Hypochlorination, Pre	Iron removal
MENDON VILLAGE	5568	Innovative	Iron removal

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