LITTLE RIVER TRIBAL WATER SYSTEM

Q: Is LITTLE RIVER TRIBAL WATER SYSTEM water safe to drink?

LITTLE RIVER TRIBAL WATER SYSTEM (PWS ID: 055293702) has 55 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,802 people using Groundwater sources.

Q: What type of violations does LITTLE RIVER TRIBAL WATER SYSTEM have?

LITTLE RIVER TRIBAL WATER SYSTEM has 55 total violations: 0 health-based violations (MCL exceedances or treatment failures), 55 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in LITTLE RIVER TRIBAL WATER SYSTEM water?

No. LITTLE RIVER TRIBAL WATER SYSTEM was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

Q: What water source does LITTLE RIVER TRIBAL WATER SYSTEM use?

LITTLE RIVER TRIBAL WATER SYSTEM uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: Where does this data come from?

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 5, 2026

PWS ID: 055293702 · MANISTEE, 05 49660

LITTLE RIVER TRIBAL WATER SYSTEM serves 2,802 people in MANISTEE, 05 using Groundwater water sources. It has 55 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LITTLE RIVER TRIBAL WATER SYSTEM

LITTLE RIVER TRIBAL WATER SYSTEM is a native american-owned community water system that delivers drinking water to 2,802 residents in MANISTEE, 05 through 97 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 55 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 55 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Thallium, Total, recorded in 4 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across 05, EPA tracks 113 public water systems serving 144,290 people, with 19,546 cumulative violations and 443 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 173 violations. LITTLE RIVER TRIBAL WATER SYSTEM's 55 violations sit below the 05 average. Statewide, 5 of 13 UCMR5-tested systems have reported PFAS detections (38.5%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served

2,802

Total Violations

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Native American
Connections: 97
School/Daycare: No
MCL Violations: 0
Monitoring Violations: 55
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Thallium, Total	MR	4	2011
Selenium	MR	4	2011
Arsenic	MR	4	2011
Mercury	MR	4	2011
Revised Total Coliform Rule	MON	4	2018
Chromium	MR	4	2011
Fluoride	MR	4	2011
Antimony, Total	MR	4	2011
Beryllium, Total	MR	4	2011
Nickel	MR	4	2011
Cadmium	MR	4	2011
CYANIDE	MR	4	2011
Barium	MR	4	2011
Asbestos	MR	2	2011
Coliform (TCR)	MR	1	2012

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFHxS	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFOS	5/22/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFBA	5/22/2024	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	5/22/2024	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	5/22/2024	<0.002 µg/L	0.002 µg/L	Not Detected
NMeFOSAA	5/22/2024	<0.006 µg/L	0.006 µg/L	Not Detected
NEtFOSAA	5/22/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFTrDA	5/22/2024	<0.007 µg/L	0.007 µg/L	Not Detected
PFNA	5/22/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFDA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFTA	5/22/2024	<0.008 µg/L	0.008 µg/L	Not Detected
PFDoA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFUnA	5/22/2024	<0.002 µg/L	0.002 µg/L	Not Detected
11Cl-PF3OUdS	5/22/2024	<0.005 µg/L	0.005 µg/L	Not Detected
4:2 FTS	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
8:2 FTS	5/22/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFHpA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
6:2 FTS	5/22/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFEESA	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	5/22/2024	<0.02 µg/L	0.02 µg/L	Not Detected
PFPeS	5/22/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFMPA	5/22/2024	<0.004 µg/L	0.004 µg/L	Not Detected
lithium	5/22/2024	<9 µg/L	9 µg/L	Not Detected
PFOA	5/22/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFBS	5/22/2024	<0.003 µg/L	0.003 µg/L	Not Detected
lithium	11/4/2024	<9 µg/L	9 µg/L	Not Detected
PFHxA	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFDoA	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	11/4/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFOS	11/4/2024	<0.004 µg/L	0.004 µg/L	Not Detected
NMeFOSAA	11/4/2024	<0.006 µg/L	0.006 µg/L	Not Detected
PFUnA	11/4/2024	<0.002 µg/L	0.002 µg/L	Not Detected
PFBS	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFNA	11/4/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFTA	11/4/2024	<0.008 µg/L	0.008 µg/L	Not Detected
PFTrDA	11/4/2024	<0.007 µg/L	0.007 µg/L	Not Detected
NEtFOSAA	11/4/2024	<0.005 µg/L	0.005 µg/L	Not Detected
PFHxS	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpS	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeS	11/4/2024	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpA	11/4/2024	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	11/4/2024	<0.02 µg/L	0.02 µg/L	Not Detected
11Cl-PF3OUdS	11/4/2024	<0.005 µg/L	0.005 µg/L	Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for LITTLE RIVER TRIBAL WATER SYSTEM.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID 055293702 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

05 Drinking Water Authority

05's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 05 regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest)	Contaminant	Category	Count	EPA Record
2018	Revised Total Coliform Rule	MON	4	SDWIS / 055293702 / 8000
2012	Coliform (TCR)	MR	1	SDWIS / 055293702 / 3100
2011	Thallium, Total	MR	4	SDWIS / 055293702 / 1085
2011	Selenium	MR	4	SDWIS / 055293702 / 1045
2011	Arsenic	MR	4	SDWIS / 055293702 / 1005
2011	Mercury	MR	4	SDWIS / 055293702 / 1035
2011	Chromium	MR	4	SDWIS / 055293702 / 1020
2011	Fluoride	MR	4	SDWIS / 055293702 / 1025
2011	Antimony, Total	MR	4	SDWIS / 055293702 / 1074
2011	Beryllium, Total	MR	4	SDWIS / 055293702 / 1075
2011	Nickel	MR	4	SDWIS / 055293702 / 1036
2011	Cadmium	MR	4	SDWIS / 055293702 / 1015
2011	CYANIDE	MR	4	SDWIS / 055293702 / 1024
2011	Barium	MR	4	SDWIS / 055293702 / 1010
2011	Asbestos	MR	2	SDWIS / 055293702 / 1094

How LITTLE RIVER TRIBAL WATER SYSTEM Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric	LITTLE RIVER TRIBAL WATER SYSTEM	05 avg	Federal benchmark
Total violations	55	173	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	0	3.9	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	38.5%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	2,802	1,277	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 113 regulated public water systems in 05.

Federal MCL reference — Safe Drinking Water Act thresholds ▼

Contaminant	Federal MCL / Action Level	Note
Lead	0 mg/L (Action Level: 0.015 mg/L)	Lead and Copper Rule treatment technique
Arsenic	0.010 mg/L (10 ppb)	Health-based MCL since 2006
Total Coliform	Treatment technique (RTCR)	Indicator organism, monitoring trigger
PFOA / PFOS (PFAS)	4.0 ppt each (final 2024 rule)	Compliance deadline 2029
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is LITTLE RIVER TRIBAL WATER SYSTEM water safe to drink? ▼

LITTLE RIVER TRIBAL WATER SYSTEM (PWS ID: 055293702) has 55 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,802 people using Groundwater sources.

How many people does LITTLE RIVER TRIBAL WATER SYSTEM serve? ▼

LITTLE RIVER TRIBAL WATER SYSTEM serves 2,802 people in MANISTEE, 05. It is a Native American-owned system using Groundwater water sources with 97 service connections.

What type of violations does LITTLE RIVER TRIBAL WATER SYSTEM have? ▼

LITTLE RIVER TRIBAL WATER SYSTEM has 55 total violations: 0 health-based violations (MCL exceedances or treatment failures), 55 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in LITTLE RIVER TRIBAL WATER SYSTEM water? ▼

No. LITTLE RIVER TRIBAL WATER SYSTEM was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

What water source does LITTLE RIVER TRIBAL WATER SYSTEM use? ▼

LITTLE RIVER TRIBAL WATER SYSTEM uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Where does this data come from? ▼

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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