Illinois Administrative Code (Last Updated: March 27, 2024) |
TITLE35. ENVIRONMENTAL PROTECTION |
PART604. DESIGN, OPERATION, AND MAINTENANCE CRITERIA |
SUBPARTF. FILTRATION |
§ 604.600. Filtration |
§ 604.605. Rapid Rate Gravity Filters |
§ 604.610. Rapid Rate Pressure Filters |
§ 604.615. Deep Bed Rapid Rate Gravity Filters |
§ 604.620. Biologically Active Filtration |