Drinking Water Compliance OS

U.S. water systems

Oklahoma Water Systems

Oklahoma

1,958 community water systems on record — 889 active, 1,069 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

Counties in Oklahoma

All community water systems in Oklahoma