35 Ill. Adm. Code 372.410
Preapplication Treatment Plant Design
Section 372
Section 372.410
Preapplication Treatment Plant Design
a) Design and Construction Requirements
All preapplication treatment systems shall be designed and
constructed in accordance with 35 Ill. Adm. Code 370, Illinois Recommended
Standards for Sewage Works.
b) Screening
All treatment systems except those requiring tertiary
filtration must have a screening device sized to minimize plugging of the spray
nozzles following the storage lagoon prior to the irrigation distribution
system.