US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 501 — GENERAL PROVISIONSSubpart B501.25535 Ill. Adm. Code 501.255Holding PondYear: 2026Length: 26 wordsOfficial source Section 501 Section 501.255 Holding Pond Any excavated, diked or walled structure or combination of structures designed for the interception and temporary storage of feedlot runoff.Previous35 Ill. Adm. Code 501.254Next35 Ill. Adm. Code 501.260