NDT Jobs & Salaries in Decatur, IL
The NDT job market in Decatur is shaped directly by its industrial base — Heavy equipment (Caterpillar), Agricultural processing, Specialty chemicals. Major employers and asset owners in the area include Caterpillar Decatur (mining trucks), ADM Decatur complex, all of which run continuous inspection programs and rotate inspection contractors against multi-year MSAs. Code authorities most often cited in local procurement specifications are AWS D1.1, ASME, API 570, so any inspector hunting work in Decatur should expect those references in interviews and pre-qualification packages. Wages track close to the national median for inspectors, with overtime making up the variable component. A recurring local theme: "Mining-truck weld inspection at Cat Decatur is unforgiving — a single MT or UT cal slip on a haul-truck frame is a warranty-claim multiplier across every truck shipped that week." BLS-anchored Level II wages in Decatur run around $70,000/yr; Level III with API endorsements layers on to roughly $108,000/yr — the gap between the two is the single biggest reason local inspectors pursue Level III. Jurisdictional layer matters here: IL EPA and FDA food contact apply on top of the federal/national codes, and missing the local-authority reference on a procedure submission is a common rejection reason for first-time-into-Decatur contractors. One angle that differentiates Decatur from peer markets: ADM Decatur — sterile food-grade SS welding inspection. Turnaround calendar: Spring/Fall TARs — the inspection workforce flexes hard against this rhythm and overtime stacks during those windows.
Local industries
Top local employers / asset owners
- • Caterpillar Decatur (mining trucks) (Heavy equipment)
- • ADM Decatur complex (Agricultural processing)
| Role | Pay (USD) |
|---|---|
NDT Trainee / Helper 0-1 yrs • No certification yet; pursuing ASNT Level I | $38K–$50K |
ASNT Level I Technician 1-2 yrs • ASNT NDT Level I in one or more methods | $48K–$65K |
ASNT Level II UT/RT/MT/PT Inspector 3-6 yrs • ASNT NDT Level II in primary method(s) | $60K–$92K |
PAUT/TOFD Technician 4-8 yrs • ASNT Level II UT plus PAUT and/or TOFD endorsement | $78K–$115K |
API 510 / 570 / 653 Inspector 5+ yrs • API 510, 570, or 653 individual certifications | $88K–$135K |
ASNT Level III / NDE Engineer 8-15 yrs • ASNT NDT Level III in multiple methods | $110K–$175K |
Certifications worth holding for the Decatur market
- ASNT NDT Level II in your primary method (UT or RT is the most marketable starting point)
- ASNT Level III in your primary method (the credential that unlocks procedure approval and inspector certification)
Application checklist
- Photo of your current ASNT (or ISO 9712 / NAS 410) certification card and the underlying written practice that issued it.
- Proof of relevant API certifications (510 / 570 / 653) if you are applying to Decatur refining, petrochemical, or pipeline work.
- Documented vision examination (current within 12 months) and physical / colour-perception test as required by your written practice.
- A method-by-method experience log totalling the hours required by your level (e.g. 1,600 h for Level II UT under SNT-TC-1A).
- OSHA 10 (or 30) construction safety card; many petrochemical sites also require TWIC, BROWZ, ISN, or Avetta enrollment.
- Procedure-writing samples if applying for Level III or NDE engineer roles — at minimum a UT or RT procedure you authored.
- A signed reference from a Level III or supervising inspector who can vouch for your hands-on experience hours.
Frequently asked
What's the entry-level NDT salary in Decatur?
Entry-level NDT trainees in Decatur start around $35K-$50K (BLS-anchored regional band). Once ASNT Level I certifications come in (typically 6-12 months), base pay steps to ~$50K-$70K, with turnaround overtime layering on top.
Which NDT certifications are most in-demand in Decatur?
ASNT NDT Level II in your primary method (UT or RT is the most marketable starting point); ASNT Level III in your primary method (the credential that unlocks procedure approval and inspector certification) — these are the certifications that show up most often in local procurement and pre-qualification packages. Note also IL EPA and FDA food contact — local code references that procurement managers expect inspectors to be familiar with.
Are remote / travel NDT roles available out of Decatur?
Yes. Most Decatur-based inspection contractors run a mix of local turnaround work and travel-rotation positions to other regions; a willingness to mobilise is one of the fastest ways to break into the industry from a Level I background.
Who are the largest NDT employers in Decatur?
The biggest single employer of NDT inspectors in Decatur is Caterpillar Decatur; the broader top-five typically also includes ADM (Archer Daniels Midland) HQ, Tate & Lyle. Pre-qualification with the top three names unlocks the bulk of the local volume.
What makes the Decatur NDT market different from neighbouring cities?
ADM Decatur — sterile food-grade SS welding inspection Combined with: caterpillar truck frame ut (high-cycle fatigue). These local specialties shape the kinds of credentials that get hired here vs. neighbouring metros.
When does NDT hiring spike in Decatur?
Hiring follows the local turnaround calendar: Spring/Fall TARs. Recruitment for these surge periods typically opens 60-90 days ahead, so positioning your resume by January for a spring TAR or July for an autumn TAR is the most effective approach.
NDT Training in Decatur
Local courses, fees, and accreditation pathways feeding the same employer base.
NDT Services in Decatur
The companies hiring inspectors — see the local service catalogue.
Explore Careers in Other Cities
Verified Decatur, IL Inspection-Market Data
Hard numbers from BLS, EIA, AAPA, Census & API directories — anchoring this page to Decatur, IL's actual NDT market, not a generic template.
- Local Wage Anchor — Level II NDT Technician
- $70K/yr typical for Decatur, IL
- Metro Industrial Base
- 104K people in Decatur, IL
- Sector Mix (NDT Demand Drivers)
- Heavy Manufacturing (40%) · Agribusiness (25%)
- Active API-Certified Inspectors (regional)
- ~20 API 510 · ~25 API 570 · ~15 API 653
- ASNT Chapter / Community
- ASNT Central Illinois
- Cost-of-Living Impact on Rate Cards
- COL index 78.0 (22.0 pts below national avg) · transport surcharge band: medium
Source: BLS OES IL state 2024
Source: US Census ACS 2023
Source: BEA Regional Accounts 2023
Source: API ICP roster + state directories (est.)
Source: ASNT chapter directory
Source: C2ER ACCRA COL Index 2024
Continue Reading — In-Depth Guides
Authored by ASNT Level III inspectors. Real procedures, real numbers, real codes.
- Ultrasonic Testing — Complete GuidePhysics, calibration, codes, equipment, applications.
- Radiographic Testing — Complete GuideSources, exposure, IQIs, ASME V, digital RT.
- Magnetic Particle Testing — Complete GuideAC/DC field, wet/dry methods, ASTM E709, yoke.
- Penetrant Testing — Complete GuideVisible vs fluorescent, ASTM E165, dwell times.
- Phased Array UT (PAUT) — Complete GuideBeam steering, focal laws, scan plans, ISO 13588.
Start Your NDT Career in Decatur
Get certified, gain documented experience, and connect with the local employers above.