F4/100
LEFLORE CO. RWD #18 — Water Quality Report 2026
Serving 3,870 people · Oklahoma
Water Source
Purchased Surface Water
County
—
System ID
OK3004009
Violations
32
Contaminant Test Results
EPA Violation History
9
Violations (last 5yr)
9
Unresolved
8
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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 2Unresolved
Treatment technique violation
When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2023 – June 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
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 LEFLORE CO. RWD #18
Is LEFLORE CO. RWD #18 water safe to drink?
LEFLORE CO. RWD #18 water receives a grade of F (4/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 32 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LEFLORE CO. RWD #18 detected?
51 contaminants were tested in LEFLORE CO. RWD #18's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does LEFLORE CO. RWD #18 have any EPA violations?
Yes, LEFLORE CO. RWD #18 has 32 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, RPT, TT. 16 are health-based violations.
How many people does LEFLORE CO. RWD #18 serve?
LEFLORE CO. RWD #18 serves approximately 3,870 people, Oklahoma.
What type of water does LEFLORE CO. RWD #18 provide?
LEFLORE CO. RWD #18 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 OK3004009.
How does LEFLORE CO. RWD #18 compare to other utilities in Oklahoma?
LEFLORE CO. RWD #18 scores 4/100 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.