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Sandy Castillo <br />Senior Inspector — Geotechnical / Materials <br />CTQP Pile Driving — ACI Grade I — bilingual (EN/ES) <br />EDUCATION: BS Engineering Technology (Construction Specialization), Daytona State College — ABET-accredited (2025) <br />REGISTRATIONS / CERTIFICATIONS: CTQP Pile Driving Inspector | ACI Concrete Field-Testing Technician Grade I | Earthwork <br />Construction Inspector (ECI) Level I | FL Stormwater Erosion & Sedimentation Control Inspector | Radiation Safety (nuclear density <br />gauge) | OSHA 30 <br />Sandy is TEC's geotechnical and materials-focused inspector — densities, proctors, concrete field testing, and deep- <br />foundation inspection — coordinating daily with testing laboratories so acceptance data lands in the record the day it is <br />taken. Bilingual in English and Spanish, Sandy communicates acceptance criteria directly to field crews. <br />Relevant Experience <br />Everglades Agricultural Area (EAA) Reservoir — USACE — Materials / QA Inspector | 2025–Ongoing <br />Density and materials verification on embankment, structural concrete, and pipe installations within a federal QA framework; <br />radiation-safety-certified nuclear gauge operation and testing-frequency compliance across concurrent work fronts. Testing- <br />frequency conformance is tracked daily against the approved quality-control plan. <br />C-43 (Caloosahatchee) Reservoir — SFWMD — Inspector | 2023–2025 <br />Compaction control, concrete field testing, and pile-driving inspection support across concurrent heavy-civil work fronts, including <br />soil-bentonite cutoff wall and embankment placements. <br />Municipal Utility & Drainage Task Orders — Miami-Dade Municipalities — Materials Inspector | 2024–Ongoing <br />Trench backfill densities, base and subgrade acceptance, and concrete testing for water, sewer, and drainage construction — with <br />same-day reporting of acceptance data into the project record. <br />Deep Foundation & Structural Concrete Inspection — South Florida Programs — Pile Driving / ACI Inspector <br />CTQP-certified pile-driving inspection and ACI Grade I concrete field testing — slump, air, temperature, cylinders — supporting <br />structural acceptance on public infrastructure projects. <br />The Engineering Company, LLC | RFQ #26-07-01 — Continuing Professional A/E Consulting Services (CCNA) <br />Page 40 of 96