Business ·
Buc-ee's opens in San Marcos with 128 fueling positions
The coverage is about brisket and Beaver Nuggets. The story for anyone who runs a fuel site is what 128 positions means for testing scope, and how fast that clock starts.

Buc-ee's opened its San Marcos travel center on August 12 at 3245 North I-35 frontage road, at Yarrington Road. The building runs about 74,700 square feet with 128 fueling positions, and the city expects it to serve more than 10,000 visitors a day. Community Impact reports an economic development agreement covering more than 50 million dollars in capital investment and over 300 jobs, against an estimated 47 million dollar construction cost. The site was originally slated to open in late 2025.
It lands less than 20 miles from the chain's New Braunfels store and 886 square feet short of the Luling location, still the largest in the chain.
What 128 positions actually means underground
The retail coverage is about brisket and Beaver Nuggets. The compliance story is the fuel system feeding those positions.
A forecourt at that scale is not a bigger version of a four dispenser corner site. It is a different regulatory object. More positions means more piping runs, more sumps, more under dispenser containment, more line leak detectors, and a tank field sized to turn product fast enough that a single delivery does not sit long enough to pick up water.

Every one of those components carries its own recurring test, and the schedule does not care that the site is new.
The clock starts now, not in three years
New construction is the easiest moment in a site's life to lose track of compliance, because everything works and nothing is due yet. Then the first anniversary arrives and a site with four times the normal component count has four times the testing scope, on a calendar nobody built.
- Spill bucket and containment sump testing runs on a three year cycle in most states. Year one is when you establish the baseline, not when you ignore it.
- Annual line leak detector testing scales with the number of pressurized lines, which at 128 positions is a real number.
- Monthly walkthrough under 40 CFR 280.36 covers every spill prevention and release detection device on site. At this size that is a route, not a glance.
- Release detection records have to exist from the day product goes in the tank, not from the first inspection.
Why this matters beyond one store
Travel center construction on the I-35 corridor is not slowing down, and each of these sites arrives with a fuel system larger than most operators have ever managed. The buildout is being covered as a retail and tourism story. The people who have to keep it in compliance for the next thirty years are reading a different article.
If you operate a site anywhere near this scale, the useful question is not how big it is. It is whether the testing schedule was written before the doors opened or after the first notice of violation.