Menu
(951) 345-3509Discuss a project

Civil engineering · Corrosion · Thermal testing

Civil engineering and corrosion services for sites, infrastructure, and materials.

Calicore Engineering supports owners, contractors, utilities, and developers with California civil design, grading, drainage, septic, mapping, permitting, and construction services—alongside nationwide corrosion studies, failure investigations, thermal resistivity testing, Wenner four-pin surveys, and mechanical CAD. Soil Tests Laboratory, our specialty testing division, accepts shipped samples nationwide.

Explore all services Request a proposal

Civil + corrosion capabilities

California Civil PE No. 98815

Principal-led

Nationwide specialty reach

Principal specialty

Corrosion questions rarely have one-number answers.

Resistivity, chemistry, coatings, materials, geometry, operating history, and the damage pattern must be interpreted together. Calicore builds focused scopes around the decision you need to make, then separates measurements, engineering judgment, and remaining uncertainty in a clear report.

Start with a corrosion study
01Piping failure investigations02Soil corrosivity testing03Coupon testing and interpretation04Galvanic corrosion evaluations05Buried utility assessments

Engineering capabilities

Engineering services. Measured answers.

From civil plans and corrosion investigations to thermal resistivity testing, Calicore connects field observations, laboratory measurements, and practical engineering to the decision your project needs to make.

01 / CORE SERVICE

Thermal Resistivity Testing

Measure how soil, backfill, concrete, and grout resist heat flow. Our thermal rho measurements and dry-out curves give cable and thermal designers material data tied to the moisture and density conditions that matter.

Explore thermal testing
SOIL TESTS LABORATORY / NATIONWIDE
Testing
ASTM D5334 / IEEE 442 programs, as-received or specified-condition measurements, and multi-point dry-out curves.
Reporting
Thermal results with sample preparation, moisture, and density documentation for the agreed test scope.
Delivery
Shipped samples from across the United States and in-situ field surveys by project scope and mobilization.
Thermal testing services Field surveys Concrete & grout Ready-mix rho testing Thermal testing guides

Residential permit coordination

Building a barndominium, small home, ADU, or shop?

Calicore gives owners a single PE-led point of contact for the civil and site path—grading, drainage, septic, perc testing, soil investigation, site plans, permit requirements, and correction responses—with outside disciplines clearly coordinated when required.

See the coordinated service Permit management
COMMON COUNTY ITEMS
01Civil site plan
02Grading + drainage
03Soil testing + perc
04Septic / OWTS design
05Utility coordination
06Plan-check responses
SPECIALTY DIVISION / NATIONWIDEsoiltestslab.com

Soil Tests Laboratory

Nationwide specialty testing and materials data.

Soil Tests Laboratory is Calicore Engineering’s specialty testing division, providing thermal resistivity, Wenner four-pin resistivity, soil corrosivity, dry-out curves, sieve analysis, Atterberg limits and plasticity index, Standard Proctor, and soil classification for shipped samples and nationwide projects.

Explore soil testing services
Thermal resistivity testingWenner four-pin soil resistivitySoil corrosivity testing

Engineering knowledge center

Technical guidance built around evidence.

Practical guides explain thermal resistivity, dry-out curves, electrical resistivity, and corrosion investigations, with the test conditions and source references needed to interpret the results.

Explore all technical guides
Thermal resistivity9 min read

What Is Soil Thermal Resistivity?

A plain-language explanation of thermal rho, what controls it, and why a measured value must include the material condition.

Updated September 16, 2026Read guide
CALIFORNIA-BASED

Local + regional engineering

Regional site services. Nationwide specialty reach.

San Bernardino County is Calicore’s largest market, with routine California site service across Kern, Inyo, and Mono Counties. Selected Nevada projects are accepted by scope. Thermal resistivity and Wenner field programs, shipped-sample testing, corrosion and failure investigations, and remote CAD are available nationwide.

San Bernardino CountyKern CountyInyo CountyMono CountyBishopMammoth LakesEastern SierraSelected Nevada projectsNationwide specialty services
CALICORE STANDARDPRINCIPAL-LED / FIELD-INFORMED
“The best engineering recommendation is technically sound, clearly explained, and practical to permit and build.”
NOLAN FERGUSON, PEPrincipal Engineer

Start a conversation

Bring us the site, scope, or failure.

Include the location, proposed work or problem, available plans, agency comments, and target schedule. We’ll identify the right first step.

Request a proposal (951) 345-3509 · info@soiltestslab.com