At least one toilet shall be provided for each off-channel mining operation. Chemical toilets shall be properly maintained and serviced regularly. Permanent toilets shall be properly engineered and the design approval by the Yolo County Building Official and the Environmental Health Department prior to installation. All on-site water storage facilities shall be labeled “potable” or “non-potable.” (§ 2, Ord. 1276, eff. December 6, 2001)