Im building on a hilside lot, good news is there is firm foundation. As an owner builder i personally will need to learn what options i have for power/water lines from street to pad. It's about 100 feet and i think rock is encountered in 6" to a foot typically... this makes me cry thinking of code requiring maybe 22". Is there some casing that is an alternate to the burial? Can you "build up" a mound verses dig down?