ok i'll bite. i tried this before and failed miserably.......
your surface area is 80x250 = 20,000 ft2
1 acre = 43,560 ft2
so yer pond area = 0.46 acres times avg depth of 8 ft = 3.7 acre feet
there's 7.481 gallons per cubic foot so in one acre foot there's about 325,872 gallons times 3.7 acre feet = about 1.2 million gallons....ta da....am i close???????
