TapGraded
C

ENID

Enid, OK · 49,347 served

ENID serves 49,347 people in Enid, OK. It has 1 health-based violation in the last 5 years. TapGraded gives this system a C.

Score breakdown

Health-based violations (5y)

1

Monitoring violations (5y)

8

Currently unaddressed

0

Overall score

74/100

Violation history (last 5 years)

2021
2022
2023
2024
Health-based Monitoring / reporting

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

90th-percentile lead sample 5.1 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

PFOA (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt
HFPO-DA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFHxS (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFNA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFOS (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt

System details

System type
Community water system
Water source
Surface water
Ownership
Local government
Service connections
19,739

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Frequently asked questions

Is Enid, OK tap water safe to drink?

ENID has 1 health-based violation in the last 5 years. TapGraded gives this system a C.

Does ENID have lead in its water?

The most recent 90th-percentile lead sample is 5.1 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in ENID's water?

This system was tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.

Source: EPA SDWIS/ECHO · Data as of 2026Q2