SECTION 252:690-3-63. Development of permit limitations for the implementation of dissolved oxygen criteria to protect the Fish and Wildlife Propagation beneficial use

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Steady state models simulate average conditions. The output from a steady state model will be implemented as the monthly average permit limit for oxygen-demanding substances. Dynamic models may be used to determine both short-term and long-term average limitations directly. Permit limitations that do not require advanced levels of treatment may be expressed as BOD5 and ammonia. Permit limitations that represent advanced levels of treatment may be expressed as CBOD5 and ammonia. Ammonia limitations necessary to protect the DO criteria will be evaluated for toxicity in accordance with OAC 252:690-3-20.

[Source: Added at 19 Ok Reg 1721, eff 6-13-02]

                    
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