Improve zeroPad for specific USGS requirements?
Should:
zeroPad(siteIDs, NULL)
try to intelligently follow the rules of USGS site ids?
Pros: that would be great Cons: there might be enough "gotcha's" that this might be hard to get right, and we don't want to mess up people's data (like, if it's suppose to be a 9 digit site, but our algorithm comes up with a valid 8 digit site.)