Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	105300022
PWS Name	WELLPINIT
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	525
County Served

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	462	Known	01-NOV-2025	30-NOV-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	459	Returned to Compliance	09-MAR-2025	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	457	Open	05-JAN-2025	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	458	Open	05-JAN-2025	-	Yes
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	460	Open	17-OCT-2024	-	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	471	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	466	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	474	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	470	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	469	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	472	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	467	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	465	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	464	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	463	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	473	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	468	Known	01-JAN-2023	31-DEC-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	447	Returned to Compliance	01-JUN-2022	30-JUN-2022	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	446	Returned to Compliance	01-MAY-2022	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	442	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	441	Returned to Compliance	01-OCT-2020	31-DEC-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	352	Returned to Compliance	01-SEP-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	376	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	375	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	374	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	373	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	372	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	371	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	370	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	369	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	368	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	367	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	366	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	365	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	364	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	363	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	362	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	361	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	360	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	359	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	406	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	358	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	357	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	356	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	402	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	353	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	400	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	399	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	398	Returned to Compliance	01-JUL-2020	30-SEP-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	403	Returned to Compliance	01-JUL-2020	30-SEP-2020	No

1 - 50 of 491

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
131	452	EOX	Federal Compliance achieved	15-OCT-2025	Region	Arsenic result received collected September 2025. -CJA 11/21/25
128	459	EOX	Federal Compliance achieved	30-JUL-2025	Region	SD PN received late.
124	297	EOX	Federal Compliance achieved	12-JAN-2024	Region	-
120	447	EOX	Federal Compliance achieved	22-JUL-2022	Region	PWS submitted July Coliform sample. Compliance determination made by rule manager.
119	446	EOX	Federal Compliance achieved	14-JUN-2022	Region	Missing May Coliform sample submitted in June 2022.
117	441	EOX	Federal Compliance achieved	19-JUL-2021	Region	Phthalate samples received. -CJA 9/2/21
117	388	EOX	Federal Compliance achieved	19-JUL-2021	Region	Phthalate samples received. -CJA 9/2/21
117	442	EOX	Federal Compliance achieved	19-JUL-2021	Region	Phthalate samples received. -CJA 9/2/21
115	357	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	358	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	359	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	360	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	361	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	362	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	363	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	364	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	365	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	366	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	367	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	368	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	369	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	370	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	371	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	372	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	373	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	374	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	375	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	376	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	356	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	355	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	353	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
115	354	EOX	Federal Compliance achieved	10-FEB-2021	Region	Sample 4th quarter 2020. -CJA 2/10/21
116	385	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	386	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	387	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	389	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	390	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	391	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	392	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	393	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	394	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	395	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	396	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	397	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	398	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	399	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	400	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	401	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	402	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21
116	403	EOX	Federal Compliance achieved	22-DEC-2020	Region	SOCs waiver granted, but not for phthalate. -CJA 5/25/21

1 - 50 of 471

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LANHAM WELL #2-SOUTH	389	Yes	Well	Ground water	Other	Inactive
FAIRGROUND WELL #2	927	Yes	Well	Ground water	Permanent	Inactive
FAIRGROUND WELL #1	926	Yes	Well	Ground water	Permanent	Inactive
LANHAM WELL #3	1380	Yes	Well	Ground water	Permanent	Inactive
LANHAM WELL #3 (NEW SOUTH WELL)	390	Yes	Well	Ground water	Permanent	Active
LANHAM WELL #1-EAST	388	Yes	Well	Ground water	Permanent	Active
WELLPINIT DISTRIBUTION	540	No	Distribution System/Zone	-	-	Active
LANHAM PUMP HOUSE (NO TREATMENT)	928	No	Pump Facility	-	-	Active
BOOSTER STATION #1	929	No	Pump Facility	-	-	Active
TRIBAL ADMIN TANK- NEW	1175	No	Storage	-	-	Active
TANK #1 - BOOSTER STATION	930	No	Storage	-	-	Active
TANK #2 - WEST TANK	931	No	Storage	-	-	Active
TANK #3 - EAST TANK	932	No	Storage	-	-	Active
WELLPINIT HIGH SCHOOL TANK #1	4	No	Storage	-	-	Inactive
TANK #4 - EAST STANDPIPE	933	No	Storage	-	-	Inactive
LANHAM PUMP HOUSE WITH TREATMENT	149	No	Treatment Plant	-	-	Inactive
W-01 Service sink ,Finished Tap at Pump house	162790	No	Treatment Plant	-	-	Inactive

1 - 17 of 17

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
W-01 Service sink ,Finished Tap at Pump house	162790	Hypochlorination, Post	Disinfection

1 - 1 of 1

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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