Training catalog

A multiple-choice assessment covering 811 scope, equipment selection, locating principles, signal application, and field safety. Instant feedback after each answer, score summary at the end, weak-topic callout so you know what to come back to.

A first advanced lesson for the team about to scope work on multi-utility sites — where private utilities dominate and 811 coverage stops at the meter. Covers the 811 / private demarcation gap, the field-ready sweep pattern, six common errors, and a knowledge check.

A second advanced lesson focused on the geophysics you run when the right-of-way is congested and the surface does not give the answer. Covers subsurface vs. surface method selection, ground-penetrating radar (GPR), electromagnetic induction (EMI), acoustic emission profiling, and how to fuse the four into a defensible report.

A third advanced lesson focused on what the field team hands off when the engagement closes — sketch conventions, ASCE 38 quality-level A through D assignment, the findings map / field report / recommendations memo report tier, deliverable shape for contractors versus municipalities, and what makes the documentation legally defensible after the sweep.

An entry-level foundations module covering what the 811 public ticket legally covers (the right-of-way up to the meter or service stub), the 60–65% of buried infrastructure it leaves unmarked on most sites (private water laterals, irrigation, secondary electrical feeds, communications drops, abandoned lines), and why a private locator is the next step on every multi-utility or residential scope that touches the private-side band.

A second entry-level foundations module covering the visual indicators of buried utilities you walk onto before any GPR or EM equipment is powered on: utility marker flags, APWA paint codes (red, yellow, orange, blue, purple, green, pink, white), manholes, valve covers, meter pits, irrigation boxes, pavement patches and trench-cut scars, sidewalk depressions, and the discipline of running a structured perimeter-to-interior site walk before any subsurface sweep. The lesson treats surface reading as a vocabulary, not a checklist, and treats the 99/98 post-dig paint verification as part of the same sequence rather than a separate step.

A third entry-level foundations module covering the electromagnetic model a private locator works against on every active-induction locate: the transmitter / receiver field model, low vs high frequency selection and when to use each, how the signal travels along the conductor and decays with distance from the transmitter, signal bleed and interference on shared-corridor runs, depth estimation basics (peak/null and 45° slope), and the six common frequency mistakes that show up on early-career scopes. The lesson assumes the demarcation framing from Foundations 01 and the surface vocabulary from Foundations 02, and adds the on-site frequency pass that sits between the surface pre-sweep and the subsurface method the advanced track covers.

A third entry-level foundations module covering the three locating-equipment categories every private-locator scope touches. Passive electromagnetic (EM) detection picks up the radio-frequency emissions already radiating from live power, communications, and re-radiated cable runs; active EM induction applies a transmitter signal to a target conductor and reads the return field with a receiver; ground-penetrating radar (GPR) sends a high-frequency pulse into the host material and reads the reflection from subsurface objects and material changes. The lesson covers what each tool detects, when to use it, and what its dominant limitations are, plus the entry-level rule of thumb: passive sweep first to de-risk obvious utilities, active induction for the conductive mid-band, GPR as the targeted resolution tool only where host material permits. Six common equipment-selection mistakes worth flagging — and six corrective moves — close out the lesson.

A fifth entry-level foundations module covering what good field documentation looks like and how the field report gets built. The lesson starts at the field sketch — the block legend, the north arrow, the offset scale bar, and the measurement ties anchored at a fixed monument — and continues through ASCE 38 quality-level A through D assignment written onto the field reader at the time of the locate, photo capture that survives the project handover, the per-callout dispatching the team runs when findings go to a contractor or to a municipality, and the findings map / field report / recommendations memo three-tier deliverable shape. The lesson assumes the demarcation framing from Foundations 01, the surface vocabulary from Foundations 02, the equipment vocabulary from Foundations 03, and the frequency log Foundations 04 has just produced — F05 reads against that four-module cumulative vocabulary and is the wrap that hands a defensible report off to whatever crew, contractor, or municipality shows up next.

The second of the five planned NULCA prep modules. The module deepens Foundations 02 (the surface-indicator vocabulary a private locator reads before any geophysics) into the equipment-selection vocabulary the on-site pass runs against — passive EM, active EM induction, and ground-penetrating radar basics; the rule of thumb sequencing the three into a defensible method stack; the six equipment-selection mistakes that show up on early-career scopes; and a four-question self-check. Sit it directly after Foundations 02 and before the exam-context deep dives on NULCA prep · Module 03 (locating theory and field procedures). The lesson here assumes the F02 surface vocabulary is in hand; it adds the equipment-decision layer the on-site pass sits on top of and is written as the second rung on the NULCA track.

The third of the five planned NULCA prep modules. The module deepens Foundations 03 (the three entry-level locating-equipment categories — passive EM, active EM induction, and GPR basics) into the field-theory layer the NULCA exam lens demands — what each tool actually measures on a real conductor (presence vs geometry vs reflection), how the three reads combine into a depth, azimuth, and identification the surface pre-sweep alone cannot produce, and how to read the field signals that show up when the three reads disagree. Covers pre-field hypothesis vs on-site geometry pass, the depth-disagreement cross-check, the identification ladder (presence → geometry → reflection → verification), and the six field-theory mistakes worth flagging. Sit it directly after NULCA prep · Module 02 and before NULCA prep · Module 04 (signal application and frequency selection); the lesson assumes the F03 equipment vocabulary is in hand and adds the exam-context field-theory layer the prep track builds on.

The first of the five planned NULCA prep modules. The module deepens Foundations 01 (what the 811 public ticket legally covers and where the private locator picks up) into the NULCA exam lens — utility-owner-by-utility-owner coverage rather than a single line at the right-of-way edge; the 60–65% of buried infrastructure the public ticket does not return on most sites (private water laterals, irrigation, secondary electrical feeds, communications drops, abandoned runs); the demarcation framed as a band potentially a few feet on either side of the meter or stub rather than a single line; the kick-off-call tenure when the private locator takes over and walks the site; and the six demarcation mistakes the entry-level locator makes first. Sit it directly after Foundations 01 and before NULCA prep · Module 02 (equipment selection in practice); the lesson assumes the F01 demarcation framing is in hand and adds the exam-context vocabulary and the kick-off-call handoff the prep track builds on.

The fourth of the five planned NULCA prep modules. The module deepens Foundations 04 (the EM signal model — low vs high frequency selection, signal travel along conductors, bleed and interference on shared-corridor runs, depth triangulation from peak / null and 45° slope) into the exam-context layer the NULCA certification lens demands — what each frequency choice does to the active induction read on a real conductor, when to switch frequency between the pre-field hypothesis and the on-site pass, how to detect and reject signal bleed on a parallel utility, how depth divergence between low and high frequency triangulations on the same locus signals parallel-utility bias in the field-projection envelope, how to distinguish a re-radiated cable signature from a directly-applied transmitter field, and how the closeout frequency log records the triangulation-vs-verification pair so subsequent readers do not assume a single frequency choice. Covers the per-conductor frequency pass, the shared-corridor switch-up to a higher geometric resolution frequency, the depth-triangulation pair on divergent loci, the triangulation-vs-verification closeout, and the six signal-application mistakes worth flagging. Sit it directly after NULCA prep · Module 03 (locating theory and field procedures) and before NULCA prep · Module 05 (field safety and closeout reporting); the lesson assumes the F04 EM signal vocabulary is in hand and adds the exam-context per-conductor frequency-selection layer the prep track builds on.

The fifth and final of the five NULCA prep modules. The module deepens the field-safety framing across Foundations 01–04 — private-locator PPE, traffic-control setup against the MUTCD Part 6 framework and the OSHA general-duty clause, client-side hazard awareness (open trenches, dogs, gates, irrigation controllers, exposed electrical service), and the OSHA-relevant references the on-site hazard assessment reads against — and stitches it together with the multi-utility / ASCE 38 closeout vocabulary the advanced track's records-and-documentation lesson sets up: the per-utility demarcation log, the per-conductor depth log, the scope completion record, the per-finding quality level (A through D) and method-stack annotation, the depth-delta preservation across the triangulation pairs the M04 frequency log produced, and the bounded-positive vs records-only annotation that ASCE 38 expects on every closeout finding. Module 05 is the wrap that closes the prep track on the report-side deliverable a NULCA-certified locator hands off — sequencing the field-safety briefing before mobilisation against the closeout reporting vocabulary the report is read against at hand-off.