B77/100
CHEROKEE CO. RWD #11 — Water Quality Report 2026
Serving 3,395 people · Oklahoma
Water Source
Surface Water
County
—
System ID
OK1221637
Violations
12
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 CHEROKEE CO. RWD #11
Is CHEROKEE CO. RWD #11 water safe to drink?
CHEROKEE CO. RWD #11 water receives a grade of B (77/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CHEROKEE CO. RWD #11 detected?
31 contaminants were tested in CHEROKEE CO. RWD #11's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CHEROKEE CO. RWD #11 have any EPA violations?
Yes, CHEROKEE CO. RWD #11 has 12 EPA violation(s) on record, with the most recent in 2017. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does CHEROKEE CO. RWD #11 serve?
CHEROKEE CO. RWD #11 serves approximately 3,395 people, Oklahoma.
What type of water does CHEROKEE CO. RWD #11 provide?
CHEROKEE CO. RWD #11 sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OK1221637.
How does CHEROKEE CO. RWD #11 compare to other utilities in Oklahoma?
CHEROKEE CO. RWD #11 scores 77/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Oklahoma state page for a full comparison of water systems.