The City of San Marcos hosts collections for household hazardous waste twice per week at the City Hall traffic yard (630 E. Hopkins--across from the big HEB) on Tuesday and Friday from noon until 3:30 p.m. The collections are open to all residents of Hays County, proof of residency in the form of a drivers license or other documentation is required.
The facility accepts, among other things:
The facility does not accept tires, medical waste (other than sharps), compressed gas, waste generated by business, pharmaceuticals, cylinders or computers/TV's.
For a full list of items that the household hazardous waste facility accepts, see the full brochure attached below.