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Fuel Operations → ATG Report is Daily ATG Report Import: enter your tank gauge’s closing figures and PRODUCT_NAME works out the variance, separates out the part that is only temperature, and flags what is left.

Enter a reading

1

Choose how to get it in

Type it, paste the ATG report text, upload the report file, or use Scan ATG inventory report to read a printout.
2

Enter the closing figures

Opening and closing gross and net gallons, sales gallons, deliveries, closing temperature and water level.
3

Submit

The reconciliation is calculated immediately.
Do this daily. Variance only means something over a run of days — a single day is noise.

How the variance is read

The arithmetic is: opening + deliveries − sales = expected, compared against what the tank actually holds. The difference is then broken into causes: Unexplained variance is the number to watch. It is the theft or leak indicator, and it is the reason the other causes are separated out at all — a raw variance figure hides a real problem inside normal thermal movement. You record the suspected cause on each reconciliation, including THEFT_UNAUTHORIZED_DISPENSE and UNDERGROUND_TANK_LEAK.

The EPA log

Fuel Operations → EPA Log shows each day’s Date, Tank, Book Inventory, ATG Physical, Total Variance, Thermal, Unexplained, Cause and EPA status. The monthly compliance test is applied for you: the variance must be within 1% of throughput plus 130 gallons. Each period is flagged compliant or not.
This log is your compliance record. Gaps in it are gaps in your evidence, so enter readings every day — including days nothing was delivered.
A persistent unexplained variance in one direction is worth acting on quickly. Repeated water readings, or a steady loss that survives the thermal correction, are exactly what this page exists to surface.