Initial Contact (residential design):
Helpful items to keep in mind when contacting a septic designer is how many bedrooms the home will have. Locations of proposed garages, sheds, gardens, water lines, power, cable or phone lines (if buried), drive way or live stock pastures. Clearly visible property corner markers or survey drawings will also expedite the design process. Location of yours and your neighbors wells if not on public water. Also you tax parcel number.
Find the most suitable locations for most cost effective proposed septic system. Soil logs (perk tests) are typically done at this time. Some logs can be dug by hand, most will required a back hoe or mini excavator, which is the responsibility of the property owner or their agent. After soil logs are completed and set backs have been established the type of system is identified.
All CAD work, site's drainfields (main and reserve) staked out, and documentation is completed and assembled for submittable to the County Health Dept. Whatcom County has 30 days to respond to the septic application. After the health dept. inspector has reviewed the design and conducts a site visit to verify soil logs and all set backs the design is either marked approved, not approved (listing reasons as to why), or pending (wet season review).
Request bids and select a licensed septic system installer.
A "Record Drawing" (as-built) may need to be created if design is modified during construction.