A few days ago I posted the CRS report on US global WatSan programs. Here is the State Department's most recent (September 2012) annual report to Congress on the Senator Paul Simon Water for the Poor Act:
You can access previous such reports here.
Thanks to John Oldfield of WASH Advocates for sending this to me.
"We have two ears and one mouth, so we should listen more than we say." - Zeno of Citium (334 BCE - 262 BCE)