J.R. Michael Consulting Septic System Design New Septic Systems Design, permitting and construction oversight for new water and wastewater systems. Replacement Septic Systems Site evaluation for repair and replacement of failed septic systems, as well as upgrades and size increases to existing systems. Cad Services Mapping and related cad drafting. About us Bringing you more than thirty years experience in wastewater design and permitting, topographic surveying and mapping.