If you encounter a 404 Page Not Found or other error using a link, try searching for keywords in the text of the link's URL...
e.g. January's split sampling --> http://srsworg.ning.com/profiles/blogs/pall-deq-split-sample-results-jan-2013 (e.g. ning was a previous site host)
Use the magnify icon at the top of srsw.org to search for split-sample-results to find an updated URL:
2013/02/20 - Pall/DEQ Split Sample Results Jan 2013 --> https://sites.google.com/site/srsworg/srsw-org/news/prior-news/20130220-palldeq-split-sample-results-jan-2013