Homeowners along Crystal Springs Road in Fish Creek are being advised to boil their water before use after a sewage spill at Peninsula State Park. According to a release from the Wisconsin Department of Natural Resources, a damaged sewer line coming from the park’s clubhouse caused the spill.  The clubhouse will remain closed while the sewer pipe is repaired and the spill is cleaned up. The boil order is a precaution due to groundwater in the area, but the DNR says there is no threat to the public or its drinking water. The agency expects repairs and clean-up efforts to be completed in the coming days. Northeast district supervisor Mike Bergum could not be reached for this story.