Two things are true about Alabama’s tank population at once: it is growing at the interchanges, and it is aging everywhere else. Both halves point the same direction — more testing demand than the current out-of-state routing model can serve.
The growth half
The I-65 corridor between Birmingham and Huntsville keeps sprouting travel centers, and Huntsville’s decade of expansion pulled new stations along I-565 and Highway 72. New tanks start their 3-year and annual clocks the day they go in the ground — new construction is future testing demand, guaranteed.
The aging half
Alabama’s first-generation upgrade wave dates to the 1990s deadline era, which means thousands of systems now run on 30-year-old steel, first-generation liners, and original spill buckets. Old equipment fails tests more often — and failed tests generate repairs, retests, and exactly the recurring work a local tester exists for.
What this means for owners
Scheduling windows from regional testers get longer as demand grows. A local calendar — tested on route density instead of a quarterly loop through the state — is how deadlines stop being a gamble.