N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 363-6.17

Current through Register Vol. 46, No. 45, November 2, 2024

Section 363-6.17 - Final cover - barrier protection and drainage layer

A barrier protection layer must be constructed in accordance with the provisions of this section, unless the department approves a geosynthetic designed final cover system. The barrier protection layer must protect the geomembrane barrier layer from root penetration, be stable for the specified slopes and resist erosion.

(a) Construction requirements. The barrier protection layer, including any drainage layer, must consist of a minimum of 12 inches of soil where cool season vegetation is specified or a minimum of 18 inches of soil where warm season vegetation is specified. The soil used to construct the lower six inches of this layer must pass a two-inch sieve.

(b) A drainage layer constructed of either a soil layer or geosynthetic drainage layer must be installed between the barrier layer and the barrier protection layer unless stability analysis meeting the requirements of 363-4.3(c)(3)(iv) indicates that a drainage layer is not required. If a geosynthetic drainage layer is utilized, it must be designed and constructed in accordance with the requirements in section 363-6.12 of this Subpart.

N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 363-6.17

Adopted New York State Register September 20, 2017/Volume XXXIX, Issue 38, eff. 11/4/2017

Amended New York State Register June 7, 2023/Volume XLV, Issue 23, eff. 7/22/2023

Amended New York State Register June 21, 2023/Volume XLV, Issue 25, eff. 7/23/2023