To help diagnose generalized anxiety disorder, your health provider may: 1  Do a physical exam to look for signs that your anxiety might be linked to an underlying medical condition. 2  Order blood or urine tests or other tests, if a medical condition is suspected.
Runoff that occurs on the ground surface before reaching a channel is also called a nonpoint source. If a nonpoint source contains man-made contaminants, or natural forms of pollution (such as rotting leaves) the runoff is called nonpoint source pollution.
Group D soils that have similar infiltration rates as clay include shallow soils over impervious materials and soils in areas with high water tables. The basic infiltration rate for clay, in millimeters per hour, is 1 to 5. Clay loam generally sees an infiltration rate between 5 and 10 millimeters per hour.