what is the best play to buy soil in bulk in the bay area- south bay. i am looking to fill about 30 yards.
Evergreen Supply in San Jose, usually each truck is around 7 - 8 yards so you might need 3 - 4 delivery.
Also you can get a free compost in some recycling centers in MTV/Sunnyvale
Look on Craigslist, people will be happy to dump dirt at your place for free.
And only some of it will be from Superfund sites!
Your plants will grow faster!
Costco