The following is a part of a NYTimes article.
They asked for grocery money, from $150 a month to hundreds of dollars, to make up for the fish they would have pulled from the gulf waters had there been no spill. Few offered any substantiation for the claim, though one person brought a dead fish.
My question is:
1) how would it sound differently if i used "the gulf waters there had been no spill.
2) When the positions of "had" and "there" can be exchanged?
No, the phrase "had there been no" means "if there had been no" or "if there hadn't been a."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.