Is Depew, OK Tap Water Safe to Drink?
Graded A-, with 9 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
86.2/100
waterverge.com Depew, OK — Water Quality Report
Depew's drinking water received a grade of A- (86.2 out of 100), indicating good water quality. The city's 1 water system serves approximately 555 residents using groundwater.
Lead levels were measured at 1.9 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 112 violations on record, including 7 health-based violations. 9 remain unresolved.
What to know about Depew's water
Depew ranks #36 out of 358 cities in Oklahoma for water quality, placing it one of the best in the state.
Depew 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, Depew may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Depew, OK water safe to drink?
Depew's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (86.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 555 residents using groundwater (wells).
Recent water quality updates for Depew
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Depew's water quality assessment. Grade: A- (86.2/100).
Contaminants: Consumer Confidence Rule.
Contaminants: E. COLI.
Contaminants: Coliform (TCR), Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-3219). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-778). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Depew's water supply.
Well within EPA limits.
Violation history
Depew's water system has 112 total violations on record, including 7 health-based violations. 9 remain unresolved. 1 violation was issued in the last 5 years.
Flood & environmental risk
Creek County has experienced 5 federally declared disasters since 1971. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Depew's water come from?
Depew's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 555 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Depew residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Depew'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.
Depew'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 Depew
Industrial polluters nearby
Reported releases to surface water by facilities near Depew, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
WESTERN MARKETING INC. STROUD, OK74079 | — | — | 10.0 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Depew
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- WILCOX OIL COMPANY7.8 mi
Source: EPA Superfund National Priorities List
Drought conditions
D1 — moderate droughtCreek 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
Creek County has experienced 5 federally declared disasters since 1971. 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. | 1.9 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Depew compares by contaminant
Explore where Depew ranks among all Oklahoma cities for specific contaminants.
Water source & infrastructure
Where Depew's water comes from
Depew'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 555 people through 1 water system.
Water systems serving Depew
| System Name | PWSID | Population | Source |
|---|---|---|---|
| DEPEW | OK2001903 | 555 | GW |
How Depew compares
Full Oklahoma rankings →Depew's score of 86.2/100 is above the average of 45/100 among major Oklahoma cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Oklahoma rankings →About Depew, OK
Learn more about your water
Guides and resources related to Depew's water quality findings.
Explore water quality across Creek
Frequently asked questions
Is Depew, OK tap water safe to drink?
Depew's water quality earned a grade of A- (86.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #36 out of 358 cities tested in Oklahoma.
What contaminants are in Depew's water?
Lead was measured at 1.9 ppb (90th percentile). 112 violations are on record.
How is Depew'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 Depew?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Depew's water come from?
Depew's water is sourced from Groundwater. The city has 1 water system serving approximately 555 residents.
What health violations has Depew's water system had?
Depew has 7 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.
Is Depew's groundwater at risk of contamination?
Depew 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 112 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 Depew's water compare to other cities?
Depew ranks #36 out of 358 cities in Oklahoma (better than 90% of state cities) and #4891 out of 15744 cities nationally (69th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Depew's small water system affect quality?
Depew's system serves approximately 555 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 112 violations on record.