- (a) Subject to (b), below, fill required to raise the EDA to the approved distance above the seasonal high ground water table or impervious substratum shall be clean bank run sand, free of topsoil or humus, dredged material, or stones more than 6 inches in any dimension.
(b) The first 6 inches directly beneath the bed and extending laterally across the fill extension shall consist of:
- (1) Medium to coarse textured sand, with an effective size of 0.25 to 2.0 mm, no greater than 5% passing the number 200 sieve, and no particle size larger than 3/4 inch; or
- (2) Materials meeting the ASTM C-33 specification.
Source. (See Revision Notes #1 and #2 at chapter heading for Env-Wq 1000) #11184, eff 10-1-16; ss by #14486, eff 2-1-26, EXPIRES: 2-1-36