Tell us whether you need routine maintenance, backup diagnosis, a home-sale report, or an equipment check. The right sequence changes with the question. We start with the permit, as-built drawing, and service history whenever those records are available.
Records show what should be underground
CDH’s online search includes records from 1971, with gaps in some older Ada County files. A legal-description search can find a file that the street address misses. The drawing may show a second compartment, pump chamber, alternate field, or lid location.
We compare that drawing with additions, extra bedrooms, plumbing in shops, driveways, patios, pools, and grading. Idaho does not allow added design flow without authorization, and the replacement field should stay open and uncompacted.
The operating level tells us where to look
Liquid near the outlet elevation is normal. A high level points downstream. A low level can point to leakage. Solids depth tells us about maintenance. Baffles, filters, lids, risers, walls, and floors show whether repair belongs at the tank.
Pumping first removes the operating level but gives a clearer structural view. We set the order based on whether the job is diagnosis, maintenance measurement, or an empty-tank condition inspection.
We walk from the house to the field
We look for settlement over piping, odor, wet or unusually lush strips, erosion, vehicle ruts, new structures, and concentrated irrigation. Recent weather and water use matter. Irrigated low ground can stay wet even in Boise’s dry climate.
Foothill properties add slope, cuts, runoff, and shallow material. Pumped systems add panels, floats, and dosing behavior. The written scope should say what was tested and what remained inaccessible or outside the provider’s trade.
A private inspection is not a permit approval
Only the health district can issue or finalize an onsite wastewater permit. A service provider may inspect, pump, design, or install within its credentialed scope, but cannot promise agency approval.
For new construction, a failed-system repair, or a change in use, call CDH at 208-327-7499. For a real-estate deal, ask the lender whether it needs a private inspection, a pump receipt, a CDH mortgage survey, or more than one of those.
When a full inspection is useful
Schedule one when maintenance records are missing, before buying a rural property, after repeat alarms, before adding occupancy, or after major yard changes. Routine layer measurements can catch solids before they reach the field.
One slow sink with every other fixture working normally usually starts with that branch drain. Call (208) 297-2198 when several fixtures, a tank alarm, field wetness, or missing records point to the onsite system.