Demonstration · Stakeout QC

You can’t eyeball a 0.19-foot miss. The plat can.

Every stake checked against design — on site, before the crew drives off. Most QC happens in the office a week later, when the re-stake costs a truck roll.

◆ Stakeout QC · survey-plat instrument Sample run · 25 stakes
Δ vectors ×170 (visual)4 of 25 broke tolerance
drag to orbit · tap a stake to inspect · measure two
It shows its work · state-plane coordinates · computed true-north · live scale bar · Δ vectors ×170 (visual)
21/25
in tolerance
0.194′
worst miss
On site
checked
The mechanic

What is Stakeout QC?

Stakeout QC is the check between staking a point and driving off: every as-staked point compared to its design point, in the field, against your tolerance. A bust becomes a five-minute re-stake instead of next week’s truck roll.

◆ One stake, checkedP012 · sample
Δ 0.194′OUT OF TOL
tolerance 0.060′to scale · Δ vs tol
Schematic · drawn to scale for Δ vs tolerance · sample data
The instrument

Not a pass/fail dashboard. A survey-plat instrument.

State-plane coordinates, an auto-computed true-north (≈, because it’s computed), a live scale bar, and tap any two stakes to measure. The same instrument the Party Chief reads in the field and the Licensed PM reads in the office.

01
State-plane coordinates

Arizona Central. The instrument plots real N/E in your zone — this demo runs on sample data, not a normalized cartoon scaled to look tidy.

02
A computed true-north

Grid convergence derived from the zone and marked computed (≈ 0°12′ E). Never a surveyed bearing it didn’t earn.

03
Live scale bar + two-tap measure

Tap any two stakes for the actual ground distance. The ×170 on the misses is visual; the feet are not.

It shows its work

Convergence is marked computed. No invented frame, no fabricated north. A low-confidence match never renders as a confident green dot.

QC you can defend in a deposition — every number on the plat is either measured or marked derived. Nothing in between gets dressed up to look certain.

The sample run

A worked example, end to end.

Sample data in the Arizona Central zone: 25 stakes, four out of tolerance — the kind of bust this catches on site, not three weeks later in the office.

◆ Stakeout QC · Sample run · Arizona CentralSample run
0%
21 of 25 stakes in tolerance
checked against design, in the field
21 in tol4 out · flagged on site
Out of tolerance
4
Field-fit flags
0
Mean bias
0.001′
Tolerance · H
0.060′
Worst missStake P012 came in 0.194′ out — caught and reconciled in the field, not three weeks later in the office.
AZ State Plane Central · sample data · 25 stakes, one session
Watch it run

The whole run, in 22 seconds.

The instrument, the run, and the 0.194′ miss flagged — the sample run, cut to 22 seconds.

Straight answers

The questions a licensed surveyor asks.

Does this replace my CAD or Trimble Business Center?

No. Stakeout QC checks the as-staked points against design before the crew leaves. The plat, the office work, and the seal stay exactly where they are — it just catches the bust at the truck, so the re-stake isn’t a second trip.

Whose coordinate system and tolerance?

Yours. The run sits in your state-plane zone (this one is Arizona Central) and your firm’s tolerance (here, horizontal 0.060′). True-north is computed grid convergence, marked computed — never a surveyed bearing it didn’t earn.

Is the seal still mine?

Always. Khetvar doesn’t make licensed calls and doesn’t sign anything. It checks, flags, and shows its work; the Licensed PM decides and seals.

What about a field-fit?

A field-fit is a sanctioned in-field adjustment a Party Chief makes on purpose — access, an obstruction, a conflict on the ground. Stakeout QC records it as a field-fit, not a bust. The record knows the difference.

Is this real survey data?

No — this page runs on sample data (25 stakes, 21 in tolerance, worst miss 0.194′) to show how the instrument scores a stakeout. Send us a real export — design and as-staked — and we’ll run it on your own coordinates and your own tolerance.

Score your run

Get your run scored.

Leave your email; we’ll reply, you send a stakeout export — design and as-staked — and we score it by hand on your coordinates and your tolerance, then send back the plat. A surveyor runs every one. Stakeout QC is one part of Khetvar, the operating layer for land surveying.

No spam. We reach out by hand.