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WaterVerge

Water quality report · updated Jul 2026

Is Schulter, OK Tap Water Safe to Drink?

Graded D+, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
0.0 ppb lead, 90th percentile · low
5 unresolved violations
2K people served by 1 water system

PWSID OK3005605 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
D 51 / 100

#195 of 357Oklahoma cities
How we grade →

01The verdict: is Schulter water safe?

Schulter's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (51/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,890 residents using surface water (rivers, lakes, or reservoirs).

The concern

5 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 0.0 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

32 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Schulter's drinking water received a grade of D+ (51 out of 100), indicating poor water quality. The city's 1 water system serves approximately 1,890 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 111 violations on record, including 102 health-based violations. 5 remain unresolved.

Schulter ranks #195 out of 357 cities in Oklahoma for water quality, placing it below average 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, Schulter may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 32 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 51/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
0 / 45F
Lead & CopperLead at 0.0 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
10 / 10A
Source RiskWater source: Purchased surface water.
4 / 5B

02What's in Schulter's water

Every contaminant flagged in Schulter, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Schulter's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 111 violations on record, including 102 health-based violations. 5 remain unresolved.

1 of the last ten years was clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

77 health-based in 10 yrs 3 monitoring & paperwork 4 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Schulter's water quality assessment. Grade: D+ (51/100).
Violation1 drinking water violation recorded1 health-based. Contaminants: TTHM.Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: TTHM.Resolved
Violation1 drinking water violation recordedContaminants: TTHM.Open
DisasterHURRICANE KATRINA EVACUATIONFederal disaster declaration (FEMA DR-3219). Hurricane event — may have impacted local water infrastructure.
DisasterSEVERE STORMS & FLOODINGFederal disaster declaration (FEMA DR-778). Flood event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb1994 — 0 ppb1995 — 0 ppb1996 — 0 ppb1999 — 0 ppb2002 — 0 ppb2003 — 0 ppb2013 — 0 ppb2016 — 0 ppb2019 — 0 ppb2022 — 0 ppb2023 — 0 ppb019941999201320222023

Down 0 ppb since 1994. Latest reading: 0 ppb (2023) — 0% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Schulter's water comes from

Schulter's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Purchased Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Wholesale supplier

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

1 system

1 water system, operated under local government ownership.

Delivery

1,890 people

Residents served across Schulter's service area.

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 1,890 people through 1 water system.

System namePWSIDPopulationSource
OKMULGEE CO. RWD #1 OK3005605 1,890 Purchased Surface Water

05Pressure on Schulter's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Industrial discharge

Moderate — reported releases upstream

2 facilities within 10 miles reported 49k lb released to surface water in the latest EPA Toxics Release Inventory. Proximity doesn't equal tap contamination — treatment and hydrology decide — but it's pressure on the watershed.

CP KELCO — nitrate compounds (water dissociable; reportable only when in aqueous solution) 49k lb · 7.0 mi
ANCHOR GLASS CONTAINER CORPORATION-HENRYETTA 0 lb · 4.3 mi

Flood & storm history

Recurring — declared disasters

4 federal disaster declarations on record for Okmulgee County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

HURRICANE KATRINA EVACUATION Sep 2005 · DR-3219
SEVERE STORMS & FLOODING Oct 1986 · DR-778
SEVERE STORMS & FLOODING Jun 1974 · DR-441

Superfund proximity

Low — tracked and monitored

1 National Priorities List site within 10 miles. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

06How Schulter compares

Scores for nearby Oklahoma cities on one line, with the average marked.

Schulter (this city)
51 · D+
Tulsa
48.5 · D
Lawton
44.4 · F
Broken Arrow
43.9 · F
Oklahoma City
38.6 · F
Norman
38.4 · F

dashed line = Oklahoma average (45/100)

Schulter scores 51/100above the Oklahoma average of 45/100. It outscores 9 of 10 nearby cities. Full Oklahoma rankings →

Okmulgee water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Schulter's water — not generic advice.

Extra protection

A basic carbon filter still helps

Schulter's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Schulter alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Schulter, OK tap water safe to drink?

Schulter's water quality earned a grade of D+ (51/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #195 out of 357 cities tested in Oklahoma.

What contaminants are in Schulter's water?

Lead was measured at 0.0 ppb (90th percentile). 111 violations are on record.

How is Schulter'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 Schulter?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Schulter's water come from?

Schulter's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,890 residents.

What health violations has Schulter's water system had?

Schulter has 102 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

How does Schulter's water compare to other cities?

Schulter ranks #195 out of 357 cities in Oklahoma (better than 45% of state cities) and #12700 out of 15382 cities nationally (17th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Schulter's small water system affect quality?

Schulter's system serves approximately 1,890 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 111 violations on record.

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About Schulter, OK: Schulter is a town in Okmulgee County, Oklahoma, United States. The population was 422 at the time of the 2020 census. Median household income $71,429 · median home value $36,151 · median age 47.8 · 87.7% homeowners · 5.7% college educated. Wikipedia → Service area: 2 ZIP codes across Okmulgee.
Show ZIP codes 7443774460
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.