Tapcensus

Oklahoma

Comanche County drinking water quality

25 active public water systems serve 137,288 people in Comanche County. 6 are compliant, 19 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 1 carries a health flag.

Active systems 25 23 community systems
People served 137K by public water systems
Systems with violations 19 76% of active systems, past 3 years
Serious violators 1 1 systems carry a health flag

Needs attention

Elgin Pwa OK2001610 · Community water system · Serves 3,300 9 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR).
Medicine Park OK3001603 · Community water system · Serves 382 5 rules violated in the past three years. Unresolved: Chloramine, Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Revised Total Coliform Rule (RTCR).

Community water systems

23 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Lawton
92,757 2 0
Fort Sill Hqusafacfs
23,000 0 0
Elgin Pwa
3,300 9 1
Comanche CO Rwd #4
3,000 2 0
Comanche CO Rwd #1
2,800 3 1
Cache
2,371 0 0
Comanche CO Rwd #3
2,325 0 0
Comanche CO Rwd #2
1,840 1 0
Geronimo
1,200 3 0
Fletcher
1,022 3 1
Pecan Valley Rwd
1,000 3 1
Sterling Pwa
762 2 0
Chattanooga PWS
627 1 0
Medicine Park
382 5 2
Indiahoma Public Works Authority
350 5 1
Faxon
134 3 0
Mountain Village Development
77 7 1
Southeast Water Association
51 0 0
Hwy 7 East Water Assn
50 4 1
Sunnyside Water Assoc
50 1 1
Clemmer Water Association
47 3 1
Valley View Estates Homeowners Assoc
42 2 0
Valley View Water Association
25 4 0
Non-community systems (2: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Fort Sill Camp Eagle
50 0 0
Letra Beach
26 0 0
Inactive systems (119, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Oklahoma records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.