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USFS CHEMULT RANGER STATION

PWS ID: OR4101083 · CHILOQUIN, Oregon 97624

USFS CHEMULT RANGER STATION serves 20 people in CHILOQUIN, Oregon using Groundwater water sources. It has 189 recorded EPA violations, including 7 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: USFS CHEMULT RANGER STATION

USFS CHEMULT RANGER STATION is a federal-owned transient non-community water system that delivers drinking water to 20 residents in CHILOQUIN, Oregon (Klamath County) through 19 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 189 total violations for this system , of which 7 (4%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 167 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 35 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oregon, EPA tracks 2,518 public water systems serving 4,005,242 people, with 206,659 cumulative violations and 20,339 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 82.1 violations. USFS CHEMULT RANGER STATION's 189 violations sit above the Oregon average. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%). 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
20
Total Violations
189
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Federal
Connections
19
County
Klamath
School/Daycare
No
MCL Violations
5
Monitoring Violations
167
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 35 2014
Consumer Confidence Rule Other 8 2004
Lead and Copper Rule MR 6 2016
Coliform (TCR) MCL 5 2013
E. COLI MR 3 2023
cis-1,2-Dichloroethylene MR 2 2014
DICHLOROMETHANE MR 2 2014
Ethylbenzene MR 2 2014
o-Dichlorobenzene MR 2 2014
Tetrachloroethylene MR 2 2014
Toluene MR 2 2014
trans-1,2-Dichloroethylene MR 2 2014
2,4-D MR 2 2014
2,4,5-TP MR 2 2014
LASSO MR 2 2014
Benzo(a)pyrene MR 2 2014
Carbofuran MR 2 2014
Dalapon MR 2 2014
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2014
Endothall MR 2 2014
Endrin MR 2 2014
ETHYLENE DIBROMIDE MR 2 2014
HEXACHLOROBENZENE MR 2 2014
Methoxychlor MR 2 2014
Pentachlorophenol MR 2 2014
Total Polychlorinated Biphenyls (PCB) MR 2 2014
Simazine MR 2 2014
Toxaphene MR 2 2014
OXAMYL MR 2 2014
Beryllium, Total MR 2 2005

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 USFS CHEMULT RANGER STATION.

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 OR4101083 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oregon Drinking Water Authority

Oregon'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 OR 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
2023 E. COLI MR 3 SDWIS / OR4101083 / 3014
2023 Public Notice Other 2 SDWIS / OR4101083 / 7500
2022 Revised Total Coliform Rule TT 2 SDWIS / OR4101083 / 8000
2022 Revised Total Coliform Rule MON 1 SDWIS / OR4101083 / 8000
2016 Lead and Copper Rule MR 6 SDWIS / OR4101083 / 5000
2014 Coliform (TCR) MR 35 SDWIS / OR4101083 / 3100
2014 cis-1,2-Dichloroethylene MR 2 SDWIS / OR4101083 / 2380
2014 DICHLOROMETHANE MR 2 SDWIS / OR4101083 / 2964
2014 Ethylbenzene MR 2 SDWIS / OR4101083 / 2992
2014 o-Dichlorobenzene MR 2 SDWIS / OR4101083 / 2968
2014 Tetrachloroethylene MR 2 SDWIS / OR4101083 / 2987
2014 Toluene MR 2 SDWIS / OR4101083 / 2991
2014 trans-1,2-Dichloroethylene MR 2 SDWIS / OR4101083 / 2979
2014 2,4-D MR 2 SDWIS / OR4101083 / 2105
2014 2,4,5-TP MR 2 SDWIS / OR4101083 / 2110

How USFS CHEMULT RANGER STATION Compares

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

Metric USFS CHEMULT RANGER STATION Oregon avg Federal benchmark
Total violations 189 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 7 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 20 1,591 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,518 regulated public water systems in Oregon.

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 USFS CHEMULT RANGER STATION water safe to drink? ▼
USFS CHEMULT RANGER STATION (PWS ID: OR4101083) has 189 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 20 people using Groundwater sources.
How many people does USFS CHEMULT RANGER STATION serve? ▼
USFS CHEMULT RANGER STATION serves 20 people in CHILOQUIN, Oregon. It is a Federal-owned system using Groundwater water sources with 19 service connections.
What type of violations does USFS CHEMULT RANGER STATION have? ▼
USFS CHEMULT RANGER STATION has 189 total violations: 7 health-based violations (MCL exceedances or treatment failures), 167 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in USFS CHEMULT RANGER STATION water? ▼
No PFAS testing data is available for USFS CHEMULT RANGER STATION under the EPA's UCMR5 monitoring program.
What water source does USFS CHEMULT RANGER STATION use? ▼
USFS CHEMULT RANGER STATION uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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