RGC General Engineering, Inc. in Chula Vista holds four CSLB licenses — #910603, #899304, #706521, and #807270 — under A General Engineering and B General Building classifications, covering asphalt paving, grading, excavation, underground utilities, and concrete work. Underground utility trenching on RGC job sites frequently runs in parallel with sewer-lateral installation by contractors such as Speedi Rooter Sewer & Drain, whose pipe connections must be pressure-tested before backfill. Listed in The Blue Book since 2015 and registered with the California DIR for public works, the firm identifies as Latino-owned and provides bilingual English-Spanish project management from its Davidson Street base in western Chula Vista. Services span new asphalt paving, hot-mix overlay, sealcoating, thermoplastic striping, ADA-compliant curb-ramp construction, and concrete flatwork for streets, sidewalks, and commercial parking lots. Grading and site-preparation scopes on residential subdivisions often precede hardscape installation by material suppliers such as SiteOne Landscape Supply, whose aggregate and drainage products integrate with RGC's compacted subgrade. Full-depth street-section reconstructions involve 6-inch Class II aggregate base, tack-coat application per Caltrans Section 39, and hot-mix asphalt placed to a minimum 3-inch compacted lift meeting Hveem stability values specified in Caltrans Standard Specifications.