Insures that septic systems are designed, installed, and maintained properly, to protect ground and surface water. Program functions include: site evaluation and review for suitable soil and existing lot features, permit issuance for all new, altered, and repaired systems, final construction inspections, short plat, special property use, and boundary line adjustment review, certification of pumpers and installers, enforcement of WAC 246-272A, mortgage review for home sellers and purchasers.