Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AK2320086
PWS Name	NSBU - WAINWRIGHT
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	600
County Served	North Slope Borough

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, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	3566805	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	3566806	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	3566824	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	3566823	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	3566822	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	3566821	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	3566820	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	3566819	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	3566818	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	3566817	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	3566816	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	3566815	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	3566814	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	3566813	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	3566812	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	3566811	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	3566810	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	3566809	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	3566808	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	3566807	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	3566825	Returned to Compliance	01-APR-2025	30-JUN-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3566783	Returned to Compliance	01-APR-2022	30-APR-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3566782	Returned to Compliance	01-APR-2022	30-APR-2022	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3566780	Returned to Compliance	01-APR-2021	30-APR-2021	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3566781	Returned to Compliance	01-APR-2021	30-APR-2021	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3566779	Returned to Compliance	01-JUL-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3566777	Returned to Compliance	01-APR-2019	30-JUN-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3566778	Returned to Compliance	01-APR-2019	30-JUN-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	3566755	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	3566756	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	3566774	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	3566773	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	3566772	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	3566771	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	3566770	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	3566769	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	3566768	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	3566767	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	3566766	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	3566765	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	3566764	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	3566763	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	3566762	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	3566761	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	3566760	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	3566759	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	3566758	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	3566757	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3566754	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	3566775	Returned to Compliance	01-OCT-2016	31-DEC-2016	No

1 - 50 of 261

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3135731	3566805	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566825	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566807	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566808	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566809	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566810	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566811	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566812	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566813	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566814	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566815	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566816	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566817	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566818	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566819	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566820	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566821	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566822	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566823	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566824	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135731	3566806	SOX	State Compliance achieved	02-SEP-2025	State	RTC'd VOC M/R vio with receipt of samples taken in September. jkr 9/15/25
3135615	3566783	SOX	State Compliance achieved	13-JUN-2022	State	Entry point chlorine and turbidity MR vio rtc'd with receipt of complete June MOR 2022. (FE 10/31/2022)
3135615	3566782	SOX	State Compliance achieved	13-JUN-2022	State	Entry point chlorine and turbidity MR vio rtc'd with receipt of complete June MOR 2022. (FE 10/31/2022)
3135598	3566781	SOX	State Compliance achieved	14-JUN-2021	State	RTC'd with complete May 2021 operator report received 6/14/2022
3135598	3566780	SOX	State Compliance achieved	14-JUN-2021	State	RTC'd with complete May 2021 operator report received 6/14/2022
3135562	3566777	SOX	State Compliance achieved	23-SEP-2019	State	System RTC'd 09/23/2019.ddb
3135562	3566778	SOX	State Compliance achieved	23-SEP-2019	State	System RTC'd 09/23/2019.ddb
3135576	3566779	SOX	State Compliance achieved	03-JUL-2019	State	RTC'd CCR violation upon late submittal 7/3/19. -tiv 5/11/20
3135549	3566754	SOX	State Compliance achieved	22-MAR-2017	State	System RTCd missed 4th qtr 2016 TTHM MON vio with 03/22/17 sampling. RTC entered and vio attached 04/07/2017. -ctb
3135548	3566757	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566758	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566759	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566760	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566761	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566762	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566763	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566764	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566765	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566766	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566767	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566768	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566769	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566770	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566771	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566772	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566773	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566774	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566775	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566755	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb
3135548	3566756	SOX	State Compliance achieved	07-MAR-2017	State	System RTC'd 4th qtr 2016 VOC MON vios with 03/07/2017 sampling. RTC entered and vio attached 04/04/2017. -ctb

1 - 50 of 165

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
IN MEREKRUAK LAKE	44285	Yes	Intake	Surface water	Permanent	Active
IN SMALLER LAKE WEST OF MEREKRUAK LAKE	49695	Yes	Intake	Surface water	Permanent	Active
DS WAINWRIGHT DISTRIBUTION SYSTEM	45463	No	Distribution System/Zone	-	-	Active
SF #1/ 2.0 MG WAINWRIGH/ T-1 TREATED	42125	No	Storage	-	-	Active
SF #2/ 2.0 MG WAINWRIGHT/ T-2	46597	No	Storage	-	-	Active
SF #3/ 3.0 MG WAINWRIGHT/ T-3	46598	No	Storage	-	-	Active
SF #4/ 3.0 MG WAINWRIGHT/ T-4	49425	No	Storage	-	-	Active
TP FOR MEREKRUAK LAKE	42489	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR MEREKRUAK LAKE	42489	Inhibitor, Orthophosphate	Corrosion control
TP FOR MEREKRUAK LAKE	42489	Innovative	Particulate removal
TP FOR MEREKRUAK LAKE	42489	Innovative	Organics removal
TP FOR MEREKRUAK LAKE	42489	Hypochlorination, Post	Disinfection
TP FOR MEREKRUAK LAKE	42489	pH Adjustment	Corrosion control
TP FOR MEREKRUAK LAKE	42489	Innovative	Particulate removal

1 - 6 of 6

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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