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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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No violation(s) found. EPA has no record of violation(s) reported by the primacy agency for this water system.

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Enforcement Actions

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No enforcement action(s) found. EPA has no record of enforcement action(s) reported by the primacy agency for this water system.

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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 #1	11070	Yes	Well	Ground water	Permanent	Active
WELL #1	816	Yes	Well	Ground water	Permanent	Active
WELL #3	1784	Yes	Well	Ground water	Permanent	Active
WELL #2	1556	Yes	Well	Ground water	Permanent	Active
WELL #4	11073	Yes	Well	Ground water	Permanent	Active
WELL #3	11072	Yes	Well	Ground water	Permanent	Active
WELL #2	11071	Yes	Well	Ground water	Permanent	Active
COMMON HEADER	11754	No	Common Headers	-	-	Active
LISBON CITY OF	3902	No	Distribution System/Zone	-	-	Active
IDSE FACILITY	11561	No	Distribution System/Zone	-	-	Inactive
SAMPLE STATION	2539	No	Sampling Station	-	-	Active
TREATMENT PLANT- TRAIN B	12875	No	Treatment Plant	-	-	Active
TREATMENT PLANT- TRAIN A	2979	No	Treatment Plant	-	-	Active

• 1 - 13 of 13

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT- TRAIN B	12875	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT- TRAIN B	12875	pH Adjustment	Corrosion control
TREATMENT PLANT- TRAIN B	12875	Innovative	Disinfection
TREATMENT PLANT- TRAIN B	12875	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT- TRAIN B	12875	Flocculation	Softening (hardness removal)
TREATMENT PLANT- TRAIN B	12875	Lime - Soda Ash Addition	Softening (hardness removal)
TREATMENT PLANT- TRAIN B	12875	Fluoridation	Other
TREATMENT PLANT- TRAIN A	2979	Lime - Soda Ash Addition	Softening (hardness removal)
TREATMENT PLANT- TRAIN A	2979	pH Adjustment	Corrosion control
TREATMENT PLANT- TRAIN A	2979	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT- TRAIN A	2979	Innovative	Disinfection
TREATMENT PLANT- TRAIN A	2979	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT- TRAIN A	2979	Flocculation	Softening (hardness removal)
TREATMENT PLANT- TRAIN A	2979	Fluoridation	Other

• 1 - 14 of 14

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