Okla. Stat. tit. 27A, § 27A-3-3-412: Operation and maintenance of structures for flood

control.

Except as otherwise provided by state or federal law, a

conservation district’s responsibility for the operation and

maintenance of any structure for the purpose of flood control

pursuant to any contractual, statutory, regulatory or other legal

authority or obligation, shall not be deemed to include maintaining,

protecting or improving the quality of any soil, air, groundwater or

surface water or biota affected by, near or comprising any part of

the structure, including any water, soil or sediment pooled,

impounded or diverted by the structure, including but not limited

to, monitoring, limiting, or abating or otherwise controlling or

eliminating any point source or nonpoint source pollution or any

other biological, chemical, radiological or physical contamination

by any source or mechanism.