Doll Environmental Services is a consulting firm specializing in soil and geologic evaluations throughout the state of Missouri.

Our environmental consulting services consist of soil morphology and geologic evaluations for the proper design and permitting of Onsite Wastewater Treatment Systems (OWTS) for residential and commercial properties. Our OWTS experience and relationships with county health departments, Missouri Department of Health & Seniors Services, and the Missouri Department of Natural Resources will provide you with the peace of mind when pursuing regulatory and permit approval of your wastewater treatment system.