Biohazard, Trauma and Crime Scene Cleanup Services in St. Mary, Missouri

Bio-One is always prepared to remedy situations that arise from unexpected events such as death, traumatic injury, and hazardous situations. We deploy our teams quickly so you can focus on all the other necessary arrangements to begin the healing process.

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Facts about St. Mary, Missouri

St. Mary (Ste. Marie, with French spelling) is a city in Ste. Genevieve County, Missouri, United States. The population was 360 at the 2010 census.


The small city was established by settlers of French descent, who also built St. Mary's Catholic Church. The city was originally named St. Mary's Landing.


St. Mary is located at 37°52′34″N 89°56′56″W (37.876153, -89.948811). St. Mary lies in the Grand Champ Bottoms. The community is bordered by Saint Laurent Creek to the south and Saline Creek to the north, with an offshoot of the Mississippi separating it from Kaskaskia Island to the east. According to the United States Census Bureau, the city has a total area of 0.61 square miles (1.58 km²), of which, 0.60 square miles (1.55 km²) is land and 0.01 square miles (0.03 km²) is water.


As of the census of 2010, there were 360 people, 159 households, and 89 families residing in the city. The population density was 600.0 inhabitants per square mile (231.7/km²). There were 188 housing units at an average density of 313.3 per square mile (121.0/km²). The racial makeup of the city was 91.67% White, 4.72% Black or African American, 0.28% Native American, 0.83% from other races, and 2.50% from two or more races. Hispanic or Latino of any race were 1.94% of the population.

Serving St. Mary, Missouri


Bio-One services all types of trauma, distressed property, and biohazard scenes in communities throughout St. Louis Area. We partner with local authorities, communities, emergency services personnel, victim services groups, hoarding task forces, apartment complexes, insurance companies and others to provide the most efficient and superior service possible.

We are your crime scene cleaners dedicated to assisting law enforcement, public service agencies and property owners/managers in restoring property that has been contaminated as a result of crime, disaster or misuse.

  • We have fielded thousands of calls and recovered just about any situation out there in a professional and compassionate matter. 
  • We are Licensed, Bonded, and Insured.
  • We maintain strict adherence to OSHA rules and regulations to ensure the safety of our workers, the public, and of you and your family.
  • We are proud to have a great working relationship with the Police, Fire, and most Insurance Agencies.

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