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.
The goal of putting in a shunt is to drain the CSF that your child's body makes each day (about a pint). This creates normal pressure inside your child's head. The shunt has three parts: 1  A tube that goes into the ventricle where fluid is building up. 2  A valve that controls how much fluid drains out. 3  This controls the pressure in your child's head and keeps fluid flowing away from the brain only. 4  A tube that comes off the valve and goes into some other part of the body.