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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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	20250030449	Known	01-SEP-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	20230016021	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	20230016100	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	20030004687	Returned to Compliance	01-JUL-2003	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9912917	Known	01-AUG-1999	31-AUG-1999	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	96V0001	Known	01-JUL-1996	31-JUL-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	95V0001	Known	01-SEP-1995	30-SEP-1995	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	94V0003	Known	01-OCT-1993	31-OCT-1993	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	93V0001	Returned to Compliance	01-DEC-1988	30-NOV-1992	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	88V0005	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	88V0004	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	88V0003	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	88V0008	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	88V0007	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	88V0012	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	88V0013	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	88V0009	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	88V0010	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	88V0011	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	88V0015	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	88V0016	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	88V0017	Known	01-OCT-1986	30-SEP-1987	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	88V0014	Known	01-OCT-1986	30-SEP-1987	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
632854	20230016021	SOX	State Compliance achieved	21-NOV-2023	State	-
632854	20230016100	SOX	State Compliance achieved	21-NOV-2023	State	-
151007	20030004687	SOX	State Compliance achieved	09-JUL-2003	State	-
95E0007	95V0001	SIA	State Violation/Reminder Notice	06-SEP-1995	State	-
93E0002	93V0001	SOX	State Compliance achieved	05-NOV-1992	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	4359754429	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL #4	4359752025	Yes	Well	Ground water	Permanent	Active
WELL #3	41813979	Yes	Well	Ground water	Permanent	Active
WELL #2	41803978	Yes	Well	Ground water	Permanent	Active
WELL #1	41793977	Yes	Well	Ground water	Permanent	Active
WELL #4	4359752755	Yes	Well	Ground water	Other	Active
Water Transaction	4359754430	Yes	Consecutive Connection	Ground water	Emergency	Active
LAKE WASHINGTON NORTH	3975350	Yes	Intake	Surface water	Permanent	Active
LAKE WASHINGTON SOUTH	39754	Yes	Intake	Surface water	Permanent	Active
WELL #2	3976	Yes	Intake	Surface water	-	Active
MELBOURNE SOUTH PLANT	36343051447	No	Treatment Plant	-	-	Active
R.O. TREATMENT PLANT	36353051447	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
MELBOURNE SOUTH PLANT	36343051447	Gaseous Chlorination, Post	Disinfection
MELBOURNE SOUTH PLANT	36343051447	Hypochlorination, Post	Disinfection
MELBOURNE SOUTH PLANT	36343051447	Chloramines	Disinfection
MELBOURNE SOUTH PLANT	36343051447	Ozonation, Post	Disinfection
MELBOURNE SOUTH PLANT	36343051447	Coagulation	Particulate removal
MELBOURNE SOUTH PLANT	36343051447	Flocculation	Particulate removal
MELBOURNE SOUTH PLANT	36343051447	Sedimentation	Particulate removal
MELBOURNE SOUTH PLANT	36343051447	Filtration, Rapid Sand	Particulate removal
MELBOURNE SOUTH PLANT	36343051447	Ozonation, Post	Taste / odor control
MELBOURNE SOUTH PLANT	36343051447	Activated Carbon, Powdered	Taste / odor control
MELBOURNE SOUTH PLANT	36343051447	pH Adjustment	Other
MELBOURNE SOUTH PLANT	36343051447	Fluoridation	Other
R.O. TREATMENT PLANT	36353051447	Gaseous Chlorination, Post	Disinfection
R.O. TREATMENT PLANT	36353051447	Hypochlorination, Post	Disinfection
R.O. TREATMENT PLANT	36353051447	Filtration, Cartridge	Particulate removal
R.O. TREATMENT PLANT	36353051447	pH Adjustment	Corrosion control
R.O. TREATMENT PLANT	36353051447	Aeration, Packed Tower	Taste / odor control
R.O. TREATMENT PLANT	36353051447	Reverse Osmosis	Inorganics removal
R.O. TREATMENT PLANT	36353051447	Sequestration	Other
R.O. TREATMENT PLANT	36353051447	pH Adjustment	Other
R.O. TREATMENT PLANT	36353051447	Fluoridation	Other

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