(Lincoln City, OR)  --  Officials are warning residents to avoid the water near the D River in Lincoln City.  The Oregon Health Authority reports unsafe levels of fecal bacteria in the ocean water.  It could be caused by sewer overflows, failing septic systems, or animal waste.  The bacteria can cause stomach cramps, skin rashes, and diarrhea.  It is safe to walk on the beach along with other activities that avoid the water near the D River.