Looks like drainage won't be a problem.
The vineyard crew showed up this week to lay out a small new block at the home ranch soon to be planted to Rodeno clone Sangiovese. They used a laser instead of a surveyor's transit, very cool. Before they could mark the vine rows they had to move dozens of large rocks unearthed by ripping, hence the (temporary) piles of rocks. If you look closely you can see the white plastic knives (center vertical line to the right of the biggest rockpile, marked by red arrows), each representing the spot where a new vine will be planted. But first, those rockpiles have to go somewhere else. Free rocks, anyone?