In addition to the applicable portions of Env-Wq 713.02 through Env-Wq 713.05, aerated lagoon aeration equipment shall meet the following requirements:

1. (a) Aeration shall be of the diffused or mechanical mixing type; and

2. (b) For diffused air systems:

   1. (1) Multiple blower units shall be provided and sized such that, with any unit out of service, the remaining units are capable of supplying all aeration needs;
   2. (2) Means shall be provided for regulating, measuring, and recording the flow of air to the lagoons;
   3. (3) Air diffusion piping headers and piping supports shall be corrosion-resistant with a durability for the anticipated life of the WWTP; and
   4. (4) Ductile iron pipe headers or piping shall not be cement lined.

Source. (See Revision Note at chapter heading for Env-Wq 700) #8590, eff 3-25-06; ss by #10693, eff 10-15-14; ss by #14258, eff 7-1-25, EXPIRES: 7-1-35