By virtue of performing OSS construction, an installer incurs the obligation to comply with the minimum requirements for on-site sewage disposal which includes proper installation of an approved system design in conformance with SHD standards. All installation work is subject to inspection and approval prior to use. [Res. 12-15. Res. 08-10. Revised and reapproved by DOH 12/15/94. Res. 93-32, Eff. 11/09/93. Res. 89-61. Prior code § 8.3(V)].