F0/100

TILLMAN CO RWD #1 — Water Quality Report 2026

Serving 1,500 people · Oklahoma

Water Source

Purchased Surface Water

County

—

System ID

OK2007107

Violations

Contaminant Test Results

1 contaminant above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
Lead (90th percentile)	0.008 mg/L	0.015 mg/L	0 mg/L	Above Goal

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 1 — URGENTUnresolved

Exceeded the Maximum Contaminant Level (single sample)

When: April 1, 2025 – June 30, 2025Enforcement: Formal — state order issuedVerify on EPA.gov

TIER 1 — URGENTUnresolved

Exceeded the Maximum Contaminant Level (single sample)

When: January 1, 2025 – March 31, 2025Enforcement: Formal — state order issuedVerify on EPA.gov

TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 1, 2024 – September 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 1 — URGENTUnresolved

Exceeded the Maximum Contaminant Level (single sample)

When: April 1, 2024 – June 30, 2024Enforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2023 – August 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2023 – September 30, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Exceeded the Maximum Contaminant Level (single sample)

When: July 1, 2023 – September 30, 2023Enforcement: Formal — state order issued

TIER 3Unresolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 20, 2023Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2023 – June 30, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About TILLMAN CO RWD #1

Is TILLMAN CO RWD #1 water safe to drink?

TILLMAN CO RWD #1 water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 74 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has TILLMAN CO RWD #1 detected?

1 contaminants were tested in TILLMAN CO RWD #1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does TILLMAN CO RWD #1 have any EPA violations?

Yes, TILLMAN CO RWD #1 has 74 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, TT, RPT. 39 are health-based violations.

How many people does TILLMAN CO RWD #1 serve?

TILLMAN CO RWD #1 serves approximately 1,500 people, Oklahoma.

What type of water does TILLMAN CO RWD #1 provide?

TILLMAN CO RWD #1 sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OK2007107.

How does TILLMAN CO RWD #1 compare to other utilities in Oklahoma?

TILLMAN CO RWD #1 scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Oklahoma state page for a full comparison of water systems.