- (a) For purposes of this section, “gray water” means residential wastewater other than from a urinal, toilet, or shower.
(b) A mini-dry well shall not require department approval and shall only be used for the disposal of gray water if there will be:
- (1) No running water to or within the structure to be served;
- (2) No internal plumbing or water storage sources within the structure; and
- (3) No other wastewater discharge from the structure to be served.
- (c) No mini-dry well for gray water shall be within 75 feet of drinking water wells or surface waters.
- (d) A mini-dry well for gray water shall be a hole up to 18 inches in diameter and up to 12 inches deep, filled with stone or gravel.
- (e) A new mini-dry well that does not meet the requirements in (b) through (d) above is prohibited, except as allowed in Env-Wq 1022.04.
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