Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AK2340387
PWS Name	UNALAKLEET CITY WATER SUPPLY
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	757
County Served	Nome Census Area

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.

Violations

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	3864636	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864637	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864633	Returned to Compliance	01-APR-2024	30-APR-2024	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864632	Returned to Compliance	01-APR-2024	30-APR-2024	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864631	Returned to Compliance	01-MAR-2024	31-MAR-2024	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864630	Returned to Compliance	01-FEB-2024	29-FEB-2024	Yes
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864627	Returned to Compliance	01-JAN-2024	31-JAN-2024	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864629	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864626	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3864628	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864625	Returned to Compliance	01-SEP-2023	30-SEP-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864622	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864624	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864621	Returned to Compliance	01-JUL-2023	31-JUL-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864619	Returned to Compliance	01-JUL-2023	31-JUL-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3864623	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3864613	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864618	Returned to Compliance	01-JUN-2023	30-JUN-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864612	Returned to Compliance	01-MAY-2023	31-MAY-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864615	Returned to Compliance	01-MAY-2023	31-MAY-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864616	Returned to Compliance	01-MAY-2023	31-MAY-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864614	Returned to Compliance	01-MAY-2023	31-MAY-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864611	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3864617	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864610	Returned to Compliance	01-APR-2023	30-APR-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864601	Returned to Compliance	01-FEB-2023	28-FEB-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864602	Returned to Compliance	01-FEB-2023	28-FEB-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864607	Returned to Compliance	01-FEB-2023	28-FEB-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864600	Returned to Compliance	01-JAN-2023	31-JAN-2023	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864606	Returned to Compliance	01-JAN-2023	31-JAN-2023	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864603	Returned to Compliance	01-JAN-2023	31-JAN-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3864604	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3864591	Returned to Compliance	01-JAN-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864590	Returned to Compliance	01-DEC-2022	31-DEC-2022	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864597	Returned to Compliance	01-DEC-2022	31-DEC-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864598	Returned to Compliance	01-DEC-2022	31-DEC-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864587	Returned to Compliance	01-NOV-2022	30-NOV-2022	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864588	Returned to Compliance	01-NOV-2022	30-NOV-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864589	Returned to Compliance	01-NOV-2022	30-NOV-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864581	Returned to Compliance	01-OCT-2022	31-OCT-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864582	Returned to Compliance	01-OCT-2022	31-OCT-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3864593	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864583	Returned to Compliance	01-OCT-2022	31-OCT-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3864596	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3864592	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864569	Returned to Compliance	01-SEP-2022	30-SEP-2022	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3864563	Returned to Compliance	01-SEP-2022	30-SEP-2022	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	3864567	Returned to Compliance	01-SEP-2022	30-SEP-2022	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864568	Returned to Compliance	01-SEP-2022	30-SEP-2022	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3864570	Returned to Compliance	01-SEP-2022	30-SEP-2022	No

1 - 50 of 619

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3163000	3864637	SOX	State Compliance achieved	09-JUL-2025	State	RTC'd June TCR and dist. chlorine M/R vios with receipt of July sample. jkr 8/6/25
3163000	3864636	SOX	State Compliance achieved	09-JUL-2025	State	RTC'd June TCR and dist. chlorine M/R vios with receipt of July sample. jkr 8/6/25
3162973	3864632	SIF	State Public Notification received	05-JUL-2024	State	Rec'd Tier 2 PN cert form for April turb vios. jkr 7/5/24
3162973	3864633	SIF	State Public Notification received	05-JUL-2024	State	Rec'd Tier 2 PN cert form for April turb vios. jkr 7/5/24
3162970	3864631	SOX	State Compliance achieved	30-MAY-2024	State	RTC'd March IFE turbidity vio with receipt of April's IFE sheet. jkr 5/30/24
3162966	3864630	SIF	State Public Notification received	06-MAY-2024	State	Rec'd Tier 2 PN cert form for February. jkr 5/6/24
3162961	3864627	SOX	State Compliance achieved	10-APR-2024	State	RTC'd turbidity vios with receipt of March MOR. jkr 4/11/24
3162955	3864629	SOX	State Compliance achieved	14-FEB-2024	State	RTC'd TCR and dist. chlorine M/R vio with receipt of sample taken in February. jkr 3/15/24
3162955	3864628	SOX	State Compliance achieved	14-FEB-2024	State	RTC'd TCR and dist. chlorine M/R vio with receipt of sample taken in February. jkr 3/15/24
3162955	3864626	SOX	State Compliance achieved	14-FEB-2024	State	RTC'd TCR and dist. chlorine M/R vio with receipt of sample taken in February. jkr 3/15/24
3162951	3864625	SOX	State Compliance achieved	10-NOV-2023	State	RTC'd Sept. turbidity vio with receipt of October MOR. jkr 11/14/23
3162945	3864613	SOX	State Compliance achieved	21-SEP-2023	State	RTC'd LCR M/R vios with receipt of samples taken 9/21/23. jkr 10/12/23
3162945	3864591	SOX	State Compliance achieved	21-SEP-2023	State	RTC'd LCR M/R vios with receipt of samples taken 9/21/23. jkr 10/12/23
3162944	3864624	SOX	State Compliance achieved	20-SEP-2023	State	RTC'd TCR and dist. chlorine M/R vios with receipt of September sample. jkr 10/3/23
3162944	3864623	SOX	State Compliance achieved	20-SEP-2023	State	RTC'd TCR and dist. chlorine M/R vios with receipt of September sample. jkr 10/3/23
3162944	3864622	SOX	State Compliance achieved	20-SEP-2023	State	RTC'd TCR and dist. chlorine M/R vios with receipt of September sample. jkr 10/3/23
3162944	3864621	SOX	State Compliance achieved	20-SEP-2023	State	RTC'd TCR and dist. chlorine M/R vios with receipt of September sample. jkr 10/3/23
3162943	3864619	SOX	State Compliance achieved	18-SEP-2023	State	RTC'd July turbidity vios with receipt of complete August MOR. jkr 9/25/23
3162939	3864527	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864618	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864616	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864615	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864611	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864607	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864597	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864588	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864583	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864579	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864577	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864569	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864568	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864562	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864555	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864552	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864549	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864548	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864546	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864542	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864541	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864537	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864531	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864530	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864525	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864524	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864519	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162939	3864520	SOX	State Compliance achieved	11-AUG-2023	State	RTC'd turbidity vios with receipt of complete July operator report. jkr 8/18/23
3162929	3864610	SIB	State Compliance Meeting conducted	05-JUL-2023	State	Spoke with operator Leslie Pitka requesting June MOR data, including flow and turbidity data. Operator stated having trouble with last step of getting it saved in the correct format on the desktop. RMW Shyler Johnson showed him once, but that step still is not clear. Emailed instructions to him and cc'd Shyler. -tiv 7/5/23
3162924	3864606	SIF	State Public Notification received	23-JUN-2023	State	Rec'd PN cert form for ongoing BWN issued 8/23/22. jkr 6/26/23
3162925	3864612	SOX	State Compliance achieved	08-JUN-2023	State	RTC'd April dist. chlorine vio and May TCR vio with receipt of 6/8/23 sample and dist. chlorine reading. jkr 6/27/23
3162937	3864614	SOX	State Compliance achieved	08-JUN-2023	State	RTC'd May dist. chlorine reading vio with receipt of 6/8/23 sample. jkr 8/3/23

1 - 50 of 529

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 1	51100	Yes	Well	Ground water	Permanent	Active
WL POWERS CREEK INFILTRATION GALLERY	43366	Yes	Well	Ground water under the influence of surface water	Permanent	Inactive
WELL 8	51111	Yes	Well	Ground water	Permanent	Active
WELL 6	51110	Yes	Well	Ground water	Permanent	Active
WELL 4	51109	Yes	Well	Ground water	Permanent	Active
WELL 3	51108	Yes	Well	Ground water	Permanent	Active
5 WELL FIELD COMBINED HEADER	51105	No	Common Headers	-	-	Active
DS DISTRIBUTION	44058	No	Distribution System/Zone	-	-	Active
SS POWERS CREEK INFILTRATION GALLERY	45529	No	Sampling Station	-	-	Inactive
ST 1MG CT TANK	42436	No	Storage	-	-	Active
UNALAKLEET TP001	42624	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
UNALAKLEET TP001	42624	Coagulation	Particulate removal
UNALAKLEET TP001	42624	Hypochlorination, Post	Disinfection
UNALAKLEET TP001	42624	Permanganate	Manganese removal
UNALAKLEET TP001	42624	Filtration, Greensand	Iron removal
UNALAKLEET TP001	42624	pH Adjustment, Post	Corrosion control

1 - 5 of 5

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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