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Community Water System · PWS OR4100831

Sprague River Water Assn

Sprague River, Oregon 97639 - drinking water served from groundwater sources to 60 people, tracked in EPA SDWIS and UCMR5.

60
People served
426
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 426 drinking-water violations at Sprague River Water Assn, 3% of them health-based - above the Oregon per-system average.

426
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
60
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sprague River Water Assn

Sprague River Water Assn is a private-owned community water system that delivers drinking water to 60 residents in Sprague River, Oregon (Klamath County) through 29 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 426 total violations for this system , of which 12 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 392 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 Coliform (TCR), recorded in 136 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. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%).

Sprague River Water Assn's 426 violations sit above the Oregon average.

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
60
Total Violations
426
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
29
County
Klamath
School/Daycare
No
MCL Violations
12
Monitoring Violations
392
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 136 2015
COLIPHAGE MR 34 2018
Consumer Confidence Rule Other 15 2004
Lead and Copper Rule MR 15 2013
Nitrate MR 15 2014
Coliform (TCR) MCL 12 2015
TTHM MR 7 2014
Total Haloacetic Acids (HAA5) MR 7 2014
1,1,1-Trichloroethane MR 4 2011
1,1,2-Trichloroethane MR 4 2011
1,2-Dichloropropane MR 4 2011
Benzene MR 4 2011
CHLOROBENZENE MR 4 2011
Styrene MR 4 2011
Tetrachloroethylene MR 4 2011
Vinyl chloride MR 4 2011
Xylenes, Total MR 4 2011
cis-1,2-Dichloroethylene MR 4 2011
p-Dichlorobenzene MR 4 2011
1,1-Dichloroethylene MR 4 2011
Carbon tetrachloride MR 4 2011
Trichloroethylene MR 4 2011
o-Dichlorobenzene MR 4 2011
DICHLOROMETHANE MR 4 2011
Toluene MR 4 2011
trans-1,2-Dichloroethylene MR 4 2011
1,2-Dichloroethane MR 4 2011
Ethylbenzene MR 4 2011
1,2,4-Trichlorobenzene MR 4 2011
Arsenic MR 3 1999

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 Sprague River Water Assn.

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 OR4100831 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
2018 COLIPHAGE MR 34 SDWIS / OR4100831 / 3028
2018 Revised Total Coliform Rule MON 1 SDWIS / OR4100831 / 8000
2016 Public Notice Other 2 SDWIS / OR4100831 / 7500
2015 Coliform (TCR) MR 136 SDWIS / OR4100831 / 3100
2015 Coliform (TCR) MCL 12 SDWIS / OR4100831 / 3100
2015 E. COLI MR 1 SDWIS / OR4100831 / 3014
2014 Nitrate MR 15 SDWIS / OR4100831 / 1040
2014 TTHM MR 7 SDWIS / OR4100831 / 2950
2014 Total Haloacetic Acids (HAA5) MR 7 SDWIS / OR4100831 / 2456
2013 Lead and Copper Rule MR 15 SDWIS / OR4100831 / 5000
2011 1,1,1-Trichloroethane MR 4 SDWIS / OR4100831 / 2981
2011 1,1,2-Trichloroethane MR 4 SDWIS / OR4100831 / 2985
2011 1,2-Dichloropropane MR 4 SDWIS / OR4100831 / 2983
2011 Benzene MR 4 SDWIS / OR4100831 / 2990
2011 CHLOROBENZENE MR 4 SDWIS / OR4100831 / 2989

How Sprague River Water Assn Compares

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

Metric Sprague River Water Assn Oregon avg Federal benchmark
Total violations 426 82.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 60 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Sprague River Water Assn water safe to drink? ▼
Sprague River Water Assn (PWS ID: OR4100831) has 426 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does Sprague River Water Assn serve? ▼
Sprague River Water Assn serves 60 people in Sprague River, Oregon. It is a Private-owned system using Groundwater water sources with 29 service connections.
What type of violations does Sprague River Water Assn have? ▼
Sprague River Water Assn has 426 total violations: 12 health-based violations (MCL exceedances or treatment failures), 392 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sprague River Water Assn water? ▼
No PFAS testing data is available for Sprague River Water Assn under the EPA's UCMR5 monitoring program.
What water source does Sprague River Water Assn use? ▼
Sprague River Water Assn 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.