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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	Failure to Conduct Assessment Monitoring	Ground Water Rule	E. COLI	20260000753	Known	01-NOV-2025	30-NOV-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	20240020774	Open	01-JUL-2024	-	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Antimony, Total	20240018649	Returned to Compliance	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	20240018534	Returned to Compliance	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Thallium, Total	20240018613	Returned to Compliance	01-APR-2024	30-JUN-2024	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	20240001316	Returned to Compliance	01-DEC-2023	31-DEC-2023	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	E. COLI	20240001317	Returned to Compliance	01-DEC-2023	31-DEC-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	20250028252	Open	01-JAN-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	20230014574	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	20230014732	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	20240023091	Open	01-JAN-2022	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	20230007579	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	20150001873	Returned to Compliance	01-JAN-2015	31-JAN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	20090004214	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	20090002960	Known	01-FEB-2009	28-FEB-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	20090003254	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	20090000624	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	20080007591	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	20080006158	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	20040007133	Open	01-JUN-2003	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	20030003276	Known	01-FEB-2003	28-FEB-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Known	01-SEP-1997	30-SEP-1997	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
692995	20250028252	SIE	State Public Notification requested	12-NOV-2025	State	-
650428	20230014574	SOX	State Compliance achieved	20-AUG-2024	State	-
650428	20230014732	SOX	State Compliance achieved	20-AUG-2024	State	-
650429	20240001316	SOX	State Compliance achieved	20-AUG-2024	State	-
650429	20240001317	SOX	State Compliance achieved	20-AUG-2024	State	-
650430	20240018649	SOX	State Compliance achieved	20-AUG-2024	State	-
650430	20240018613	SOX	State Compliance achieved	20-AUG-2024	State	-
650430	20240018534	SOX	State Compliance achieved	20-AUG-2024	State	-
618420	20230007579	SOX	State Compliance achieved	08-MAR-2023	State	-
416914	20150001873	SIF	State Public Notification received	26-FEB-2015	State	-
292108	20090004214	SOX	State Compliance achieved	18-NOV-2009	State	-
292108	20090000624	SOX	State Compliance achieved	18-NOV-2009	State	-
292108	20080007591	SOX	State Compliance achieved	18-NOV-2009	State	-
292108	20080006158	SOX	State Compliance achieved	18-NOV-2009	State	-
292108	20090003254	SOX	State Compliance achieved	18-NOV-2009	State	-
262997	20090002960	SIF	State Public Notification received	11-FEB-2009	State	-
159087	20040007133	SFK	State Bilateral Compliance Agreement signed	01-SEP-2003	State	-
146199	20030003276	SFH	State Boil Water Order	03-FEB-2003	State	-
97E0001	97V0001	SIA	State Violation/Reminder Notice	09-SEP-1997	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
PORT OF THE ISLANDS EAST WELL	1119410696	Yes	Well	Ground water	Permanent	Active
PORT OF THE ISLANDS NEW WELL	4359753425	Yes	Well	Ground water	Permanent	Active
PORT OF THE ISLANDS WEST WELL	1119510697	Yes	Well	Ground water	Permanent	Active
PORT OF THE ISLANDS WTP	95675110230	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
PORT OF THE ISLANDS WTP	95675110230	Gaseous Chlorination, Post	Disinfection
PORT OF THE ISLANDS WTP	95675110230	Hypochlorination, Post	Disinfection
PORT OF THE ISLANDS WTP	95675110230	Chloramines	Disinfection
PORT OF THE ISLANDS WTP	95675110230	Aeration, Slat Tray	Taste / odor control
PORT OF THE ISLANDS WTP	95675110230	Filtration, Rapid Sand	Iron removal
PORT OF THE ISLANDS WTP	95675110230	Lime - Soda Ash Addition	Softening (hardness removal)
PORT OF THE ISLANDS WTP	95675110230	pH Adjustment	Other
PORT OF THE ISLANDS WTP	95675110230	Reverse Osmosis	Other
PORT OF THE ISLANDS WTP	95675110230	Filtration, Cartridge	Other

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