San Marcos Household Hazardous Waste Drop-Off
634 E Hopkins St, San Marcos, TX 78666Hours: Friday noon–3:30 p.m.; Saturday 8 a.m.–noon
Accepts: Paint and thinners (max six 5-gal buckets); Automotive fluids and oil filters (12 quarts max of oil, fuel or antifreeze); Car and household batteries (3 car batteries max); Cleaning products, glues, solvents, wood finishes, nail polish…
Who can use it: San Marcos and Hays County residents only; household waste only (no businesses)
📍 Directions (Google Maps)