PlainWater
States → Oregon

SHERMAN COUNTY SCHOOL

PWS ID: OR4193912 · MORO, Oregon 97039

SHERMAN COUNTY SCHOOL serves 240 people in MORO, Oregon using Groundwater water sources. It has 97 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SHERMAN COUNTY SCHOOL

SHERMAN COUNTY SCHOOL is a local-owned non-transient non-community water system that delivers drinking water to 240 residents in MORO, Oregon (Sherman County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 97 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 96 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Nitrate, recorded in 13 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. SHERMAN COUNTY SCHOOL's 97 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
240
Total Violations
97
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Sherman
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
96
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 13 2024
Coliform (TCR) MR 10 2009
Lead and Copper Rule MR 10 2005
Chromium MR 1 2002
CYANIDE MR 1 2002
Mercury MR 1 2002
Beryllium, Total MR 1 2002
Thallium, Total MR 1 2002
Nitrite MR 1 2002
cis-1,2-Dichloroethylene MR 1 2002
Xylenes, Total MR 1 2002
DICHLOROMETHANE MR 1 2002
o-Dichlorobenzene MR 1 2002
Vinyl chloride MR 1 2002
trans-1,2-Dichloroethylene MR 1 2002
1,2-Dichloroethane MR 1 2002
1,1,1-Trichloroethane MR 1 2002
Carbon tetrachloride MR 1 2002
Trichloroethylene MR 1 2002
Tetrachloroethylene MR 1 2002
CHLOROBENZENE MR 1 2002
Ethylbenzene MR 1 2002
Styrene MR 1 2002
BHC-GAMMA MR 1 2002
Toxaphene MR 1 2002
Dalapon MR 1 2002
Diquat MR 1 2002
Di(2-ethylhexyl) adipate MR 1 2002
OXAMYL MR 1 2002
Simazine MR 1 2002

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 SHERMAN COUNTY SCHOOL.

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 OR4193912 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
2024 Nitrate MR 13 SDWIS / OR4193912 / 1040
2009 Coliform (TCR) MR 10 SDWIS / OR4193912 / 3100
2005 Lead and Copper Rule MR 10 SDWIS / OR4193912 / 5000
2002 Chromium MR 1 SDWIS / OR4193912 / 1020
2002 CYANIDE MR 1 SDWIS / OR4193912 / 1024
2002 Mercury MR 1 SDWIS / OR4193912 / 1035
2002 Beryllium, Total MR 1 SDWIS / OR4193912 / 1075
2002 Thallium, Total MR 1 SDWIS / OR4193912 / 1085
2002 Nitrite MR 1 SDWIS / OR4193912 / 1041
2002 cis-1,2-Dichloroethylene MR 1 SDWIS / OR4193912 / 2380
2002 Xylenes, Total MR 1 SDWIS / OR4193912 / 2955
2002 DICHLOROMETHANE MR 1 SDWIS / OR4193912 / 2964
2002 o-Dichlorobenzene MR 1 SDWIS / OR4193912 / 2968
2002 Vinyl chloride MR 1 SDWIS / OR4193912 / 2976
2002 trans-1,2-Dichloroethylene MR 1 SDWIS / OR4193912 / 2979

How SHERMAN COUNTY SCHOOL Compares

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

Metric SHERMAN COUNTY SCHOOL Oregon avg Federal benchmark
Total violations 97 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 240 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 SHERMAN COUNTY SCHOOL water safe to drink? ▼
SHERMAN COUNTY SCHOOL (PWS ID: OR4193912) has 97 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 240 people using Groundwater sources.
How many people does SHERMAN COUNTY SCHOOL serve? ▼
SHERMAN COUNTY SCHOOL serves 240 people in MORO, Oregon. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does SHERMAN COUNTY SCHOOL have? ▼
SHERMAN COUNTY SCHOOL has 97 total violations: 0 health-based violations (MCL exceedances or treatment failures), 96 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SHERMAN COUNTY SCHOOL water? ▼
No PFAS testing data is available for SHERMAN COUNTY SCHOOL under the EPA's UCMR5 monitoring program.
What water source does SHERMAN COUNTY SCHOOL use? ▼
SHERMAN COUNTY SCHOOL uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.

Explore PlainWater

Water in Oregon

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Oregon

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial