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Exceptions 2 and 3 are hereby added to Section R405.1 of the International Residential Code for One- and Two-Family Dwellings and shall read as follows:

R405.1 Concrete or masonry foundations.

Exceptions:

2. A filter membrane is not required where perforated drains are covered with at least eighteen inches (18") of washed gravel or crushed rock.

3. For gravel or crushed stone drains a filter membrane is not required when the gravel or crushed stone extends at least eighteen inches (18") above the top of the footing.

(Ord. 12-42 § 2, 2012.)