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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 and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	5	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2	Returned to Compliance	20-NOV-2019	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1	Known	01-NOV-2006	30-NOV-2006	Yes

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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
12	5	SOX	State Compliance achieved	02-JUN-2023	State	System has returned to a routine monitoring and reporting schedule and has returned to compliance with regard to this violation.
4	2	SOX	State Compliance achieved	07-JAN-2020	State	System performed lead consumer notice late on 12/19/2019. Certification was provided 12/23/2019
3	1	SIF	State Public Notification received	29-NOV-2006	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
CC FROM TRAILL RESERVOIR (RAW WATER)	12505	Yes	Consecutive Connection	Ground water	Permanent	Active
WELL #1	1052	Yes	Well	Ground water	Permanent	Inactive
WELL #3	1803	Yes	Well	Ground water	Permanent	Active
WELL #2	1608	Yes	Well	Ground water	Permanent	Active
WELL #4	11815	Yes	Well	Ground water	Permanent	Active
COMMON HEADER	11740	No	Common Headers	-	-	Active
HILLSBORO CITY OF	4070	No	Distribution System/Zone	-	-	Active
IDSE FACILITY	11559	No	Distribution System/Zone	-	-	Inactive
SAMPLE STATION	2623	No	Sampling Station	-	-	Active
TREATMENT PLANT	3030	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT	3030	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT	3030	Fluoridation	Other
TREATMENT PLANT	3030	Aeration, Slat Tray	Iron removal
TREATMENT PLANT	3030	Filtration, Rapid Sand	Iron removal
TREATMENT PLANT	3030	Sedimentation	Iron removal
TREATMENT PLANT	3030	Innovative	Disinfection

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