The watershed program offers technical assistance to watershed groups, municipalities, and individual citizens. A watershed is a geographic area of land across which water, and the sediments and dissolved materials it contains, flow on their way to a single common outlet -- a stream, lake or river.
A lumbar peritoneal (LP) shunt is a technique of cerebrospinal fluid (CSF) diversion from the lumbar thecal sac to the peritoneal cavity.
This is called a V-A shunt (Ventricular-Atrial shunt). There are pictures of the two types of shunts in the pictures above. The shunt has a valve, which controls the amount of fluid that flows from the brain to the abdomen or heart. The most common complications of a ventricular shunt are infection and malfunction. Malfunction can be caused by blockage in the shunt, the shunt breaking or because a valve in the shunt is not working.