Is Stanfield, OR Tap Water Safe to Drink?
Graded C, with 11 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
62.7/100
waterverge.com Stanfield, OR — Water Quality Report
Stanfield's drinking water received a grade of C (62.7 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 2,195 residents using groundwater.
Lead levels were measured at 2.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 306 violations on record, including 4 health-based violations. 11 remain unresolved.
What to know about Stanfield's water
Stanfield ranks #100 out of 213 cities in Oregon for water quality, placing it mid-range in the state.
Stanfield relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Stanfield may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 12 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Stanfield, OR water safe to drink?
Stanfield's drinking water has significant quality concerns based on EPA testing data. With a grade of C (62.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 2,195 residents using groundwater (wells).
Recent water quality updates for Stanfield
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Stanfield's water quality assessment. Grade: C (62.7/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Revised Total Coliform Rule.
Contaminants: Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-4519). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4519). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Stanfield's water supply.
Well within EPA limits.
Violation history
Stanfield's water system has 306 total violations on record, including 4 health-based violations. 11 remain unresolved. 12 violations were issued in the last 5 years.
Flood & environmental risk
Umatilla County has experienced 6 federally declared disasters since 1964. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Umatilla River.
Where does Stanfield's water come from?
Stanfield's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 2,195 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Umatilla River (river).
What Stanfield residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Stanfield's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Stanfield's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Stanfield
Industrial polluters nearby
Reported releases to surface water by facilities near Stanfield, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
LAMB WESTON INC. HERMISTON, OR97838 | — | — | 7.7 mi |
CHS HERMISTON FEED HERMISTON, OR97838 | — | — | 4.4 mi |
AMERICAN ROCK PRODUCTS HERMISTON HERMISTON, OR97838 | — | — | 9.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D1 — moderate droughtUmatilla County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Umatilla County has experienced 6 federally declared disasters since 1964. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 2.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Stanfield compares by contaminant
Explore where Stanfield ranks among all Oregon cities for specific contaminants.
Water source & infrastructure
Where Stanfield's water comes from
Stanfield's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 2,195 people through 2 water systems.
Water bodies near Stanfield
Stanfield is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Stanfield
| System Name | PWSID | Population | Source |
|---|---|---|---|
| STANFIELD, CITY OF | OR4100842 | 2,115 | GW |
| STANFIELD HUTTERIAN | OR4101507 | 80 | GW |
How Stanfield compares
Full Oregon rankings →Stanfield's score of 62.7/100 is above the average of 42/100 among major Oregon cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Oregon rankings →About Stanfield, OR
Wikipedia →Stanfield is a city in Umatilla County, Oregon, United States. As of the 2020 census, Stanfield had a population of 2,144. It is part of the Pendleton–Hermiston Micropolitan Statistical Area.
Learn more about your water
Guides and resources related to Stanfield's water quality findings.
Explore water quality across Umatilla
Frequently asked questions
Is Stanfield, OR tap water safe to drink?
Stanfield's water quality earned a grade of C (62.7/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #100 out of 213 cities tested in Oregon.
What contaminants are in Stanfield's water?
Lead was measured at 2.0 ppb (90th percentile). 306 violations are on record.
How is Stanfield's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Stanfield?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Stanfield's water come from?
Stanfield's water is sourced from Groundwater. The city has 2 water systems serving approximately 2,195 residents.
What health violations has Stanfield's water system had?
Stanfield has 4 health-based violations on record. The most recent violation was recorded in November 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 11 violations remain unresolved.
Is Stanfield's groundwater at risk of contamination?
Stanfield uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 306 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Stanfield's water compare to other cities?
Stanfield ranks #100 out of 213 cities in Oregon (better than 53% of state cities) and #11850 out of 15744 cities nationally (25th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.