If sewage sludge is composted at the facility:
- (1) The operator shall submit to the Department a chemical analysis of the sludge under § 281.122 (relating to chemical analysis of sludge), every 4 months following the date of permit issuance, unless the Department approves a different schedule in the permit.
- (2) The operator shall perform and submit to the Department additional analyses if there is a significant change in the quality of sludge.