Okla. Stat. tit. 11, § 11-37-116: Action for damages for pollution of municipal water

supply.

A municipality shall have a right of action for damages

resulting from pollution of its water supply, as provided in Section

37-115 of this title, and the measure of damages shall be the amount

which will compensate for the detriment caused thereby, whether it

could have been anticipated or not. Where such pollution is

continued for a period of six (6) months or more, the injury shall

be regarded as permanent.