Ill. Admin. Code tit. 35 § 604.1315

Current through Register Vol. 48, No. 49, December 6, 2024

Section 604.1315 - Vents

a) Finished water storage structures must be vented as follows:

1) the overflow pipe must not be considered a vent; and

2) open construction between the sidewall and roof is not permissible.

b) Vents must:

1) prevent the entrance of surface water and rainwater;

2) exclude birds and animals;

3) exclude insects and dust to the extent practicable;

4) on ground level structures, open downward with the opening at least 24 inches above the roof or sod and be covered with 24 mesh non-corrodible screen; and

5) on elevated tanks and standpipes:

A) open downward; and

B) be fitted with either four mesh non-corrodible screen, or with finer mesh non-corrodible screen in combination with an automatically resetting pressure-vacuum relief mechanism, as required by the Agency.

Ill. Admin. Code tit. 35, § 604.1315

Adopted in R18-17 at 43 Ill. Reg. 8064, effective 7/26/2019.