Is Dibble, OK Tap Water Safe to Drink?
Graded A-, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
89.6/100
waterverge.com Dibble, OK — Water Quality Report
Dibble's drinking water received a grade of A- (89.6 out of 100), indicating good water quality. The city's 1 water system serves approximately 550 residents using purchased surface water.
Lead levels were measured at 0.0 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 20 violations on record, including 3 health-based violations. 3 remain unresolved.
What to know about Dibble's water
Dibble ranks #17 out of 358 cities in Oklahoma for water quality, placing it one of the best in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Dibble may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Dibble, OK water safe to drink?
Dibble's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.6/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 550 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Dibble
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Dibble's water quality assessment. Grade: A- (89.6/100).
1 health-based. Contaminants: Chloramine.
1 health-based. Contaminants: Chloramine.
Contaminants: Coliform (TCR), Chlorine.
Federal disaster declaration (FEMA DR-3219). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-794). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Dibble's water supply.
Well within EPA limits.
Violation history
Dibble's water system has 20 total violations on record, including 3 health-based violations. 3 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
McClain County has experienced 5 federally declared disasters since 1973. 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 Washita River At Alex, North Criner Creek Near Criner.
Where does Dibble's water come from?
Dibble's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 550 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Washita River At Alex (river), North Criner Creek Near Criner (river).
What Dibble residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Dibble'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.
Dibble'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
Superfund sites within 10 miles of Dibble
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.
- HARDAGE CRINER4.0 mi
Source: EPA Superfund National Priorities List
Drought conditions
D3 — extreme droughtMcClain County is currently in D3 (extreme 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
McClain County has experienced 5 federally declared disasters since 1973. 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Dibble compares by contaminant
Explore where Dibble ranks among all Oklahoma cities for specific contaminants.
Water source & infrastructure
Where Dibble's water comes from
Dibble's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 550 people through 1 water system.
Water bodies near Dibble
Dibble is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Dibble
| System Name | PWSID | Population | Source |
|---|---|---|---|
| DIBBLE | OK3004709 | 550 | SWP |
How Dibble compares
Full Oklahoma rankings →Dibble's score of 89.6/100 is above the average of 45/100 among major Oklahoma cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Oklahoma rankings →About Dibble, OK
Wikipedia →Dibble is a town in McClain County, Oklahoma, United States. The population of the town was 867 at the 2020 census. Dibble is in the Oklahoma City Metropolitan Area, according to the U.S. Census, within the outer suburban area west of Purcell and southwest of Norman.
Learn more about your water
Guides and resources related to Dibble's water quality findings.
Explore water quality across Mcclain
Frequently asked questions
Is Dibble, OK tap water safe to drink?
Dibble's water quality earned a grade of A- (89.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #17 out of 358 cities tested in Oklahoma.
What contaminants are in Dibble's water?
Lead was measured at 0.0 ppb (90th percentile). 20 violations are on record.
How is Dibble'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 Dibble?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Dibble's water come from?
Dibble's water is sourced from Purchased surface water. The city has 1 water system serving approximately 550 residents.
What health violations has Dibble's water system had?
Dibble has 3 health-based violations on record. The most recent violation was recorded in January 2023. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
How does Dibble's water compare to other cities?
Dibble ranks #17 out of 358 cities in Oklahoma (better than 95% of state cities) and #2746 out of 15744 cities nationally (83th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Dibble's small water system affect quality?
Dibble's system serves approximately 550 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 20 violations on record.