Johnson Septic Tank Co., LLC in Roswell, NM is a family-owned and operated full-service residential and commercial septic system company. For three generations, we have offered both residential and commercial onsite wastewater systems. Whether you need a new septic system installed or an existing system repaired or maintenance, we can provide all these services along with NMED regulated Transfer of Ownership Inspections. No job is too big or too small for our licensed, bonded and insured experts, who also meet all the NMED code requirements.