When a utility needs verified proof that a grounding system will protect its people and its assets, they need more than a low bid — they need a partner that tests to IEEE 80 and 81 methodology, documents to engineering standards, and mobilizes on short notice. Truett Critical Infrastructure delivers ground grid testing, mapping, and substation services to electric utilities across all 50 states.
A substation's ground grid is the single system standing between a fault event and a fatality. It's also the one system you can't inspect by looking at it — buried conductors corrode, connections fail, and soil conditions drift, all invisibly, while design assumptions from decades ago quietly stop being true.
Verification requires measurement. We field-test grounding systems against their design basis using IEEE Std 80 and IEEE Std 81 methodology — measuring what's actually in the ground, not what the drawings say should be. The result is an engineering-grade picture of grid resistance, current-carrying integrity, and personnel safety compliance that stands up to internal audit, regulatory review, and relay coordination studies.
Whether it's a commissioning test on new construction, a periodic assessment on an aging grid, or a post-event investigation, our crews deliver the same thing every time: defensible data, clear findings, and a prioritized path to remediation.
Every Engagement Delivers
Engineering-Grade Test Report
Measured values vs. design basis, with methodology documentedGround Grid Map & As-Built Documentation
Located conductors, connections, and test points — CAD deliverableSoil Resistivity Profiles
Multi-layer soil models supporting grid design and upgradesTouch & Step Voltage Compliance Tables
Pass/fail against IEEE 80 tolerable limits, location by locationPrioritized Remediation Plan
Ranked corrective actions with budgetary pricing — we can self-performEach test is performed to published IEEE methodology, witnessed and documented in the field, and reported against your design basis — not a generic template.
A disciplined, repeatable process designed around utility operating realities — clearances, switching windows, and outage schedules.
Send us the station one-line and your window. We'll return a test plan, schedule, and firm pricing — fast enough to make your outage.
Testing is where we start — not where we stop. As part of a vertically integrated construction group, we self-perform the work our reports recommend.
Substations don't forgive shortcuts. Every crew we field is trained, equipped, and audited to work safely in energized environments — and to prove it on paper.
OSHA 1910.269 Trained
Electric power generation, transmission & distribution work rulesNFPA 70E Compliant
Arc flash assessment, boundaries, and rated PPE on every jobUtility Switching Protocols
Clearances, grounds, and hold cards coordinated with your operatorsDaily JHAs & Briefings
Job hazard analyses, tailboards, and stop-work authority for every crew memberOutage windows don't move for contractors. Our crews mobilize anywhere in the United States within 48 hours — and for emergencies, we answer the phone at 2 a.m. and roll the same night.
Most testing firms hand you a report and a problem. We hand you a report and a crew. As a vertically integrated group, we self-perform grid remediation, civil work, and logistics — no finger-pointing between vendors.
Certificates of insurance, safety statistics, test procedures, and qualifications packaged the way utility supply chain teams need them. We make it easy to award us the work — and easy to defend the award.
Calibrated instruments, documented methodology, photo logs, and traceable results. When your report gets pulled in an audit or a post-event review five years from now, it holds.
One Call Covers
Complete Grid Assessment
Resistivity, resistance, integrity, touch & step — one mobilizationSelf-Performed Remediation
The same company that finds the problem fixes itCoast-to-Coast Coverage
All 50 states — single stations or fleet-wide testing programsUtility-Grade Safety Program
OSHA 1910.269, NFPA 70E, JHAs, and switching disciplineExplore More Divisions
One call. A test plan in days, crews in 48 hours, and a report your engineers will trust. That's the Truett standard.