A big shout out to SERVPRO of Manistee, Ludington, and Cadillac's Scottville crews of David, Victoria, Donnie, Cody, Johnathon. They spent most of last week in full PPE (Tyvek suits, rubber suits, boots, gloves, and full-face respirators) under a local home after a sewage spill flooded the crawlspace. The job involved scooping the "solids and liquids" into pails, sliding them on a sled to the access door, and transferring them to goose neck bags for proper disposal. Working all day on your knees in a crawlspace filled with sewage is not fun but they did a great job making the home safe for the owners and their children.
If you Google sewage you will get lots of advice on how to clean it up. It ranges from soaking it up with kitty litter, covering it with lime, covering it with plastic and dirt, and a whole list of fixes that are just dangerous. I'm sure if you look far enough someone will even have a recipe for mixing white vinegar and baking soda to make it as good as new. Nope. Two words, source removal. You must get it out of there. Hire a septic cleaning company to pump out any standing water. You can do it yourself if you have access to a sanitary sewer to properly dispose of the sewage water. Note: it is illegal to put it down the storm sewer. If you get caught, it will be expensive.
Once the standing water is gone, the feces and solids must be mucked out and disposed of properly. Be careful who you hire for this portion of the project. Make sure the company you hire is insured and requires their employees to wear safety gear (PPE). If the employees get sick or injured, you could be liable for any costs. The solids must be also be disposed of properly. Some cut-rate businesses have been known to toss the sewage in the woods and ditches. Again, you are liable if your sewage is disposed of improperly. Once the solids have been removed, you will also need to remove at least some of the contaminated soil.
Replace it with fresh sand and apply an EPA registered disinfectant to retard bacterial and microbial growth. Place a fresh layer of 6 mill black plastic over the affected area and clean any splashes off the structural portions of the home. You are now ready to dry the structure. Dehumidifiers and air movers may require returning the walls, floors, and joists to preloss condition and dry to below 16% moisture content to prevent mold growth.
As with any disaster time is critical. If you smell any unusual odors coming from your homes' crawlspace, check it out immediately. Then call the professionals at SERVPRO of Manistee, Ludington, and Cadillac to make it "Like it never even happened".