Raise a custom error if the RDB is an error report

[elmerehbi]

No description provided.

[thodson-usgs]

Sorry for the delay.
Do you recall which function generated the error? dataretrieval pulls from a few different data portals. As is, your patch will only work for one of them, but it shouldn't be hard to fix.

[elmerehbi]

Hello.
I think It was using nwis.get_record to retrieve iv values.

[elmerehbi]

Bumping this. Otherwise we can close it. I rebased it to bring it up to date.