This program covers septic system siting, building lot approvals, septic system permitting, review of system operation and maintenance, and nuisance investigations. Regulations governing septic systems require soil evaluations on any new building lot, prior to existing system replacement, and at the time of minor subdivision parcel split-offs. Septic system types and sizes are determined by the type and condition of soil found on the individual properties.
For contractor / installer information, click here: Contractor Page
For state forms: Sewage Treatment Forms
For general information regarding sewage treatment, visit the Ohio Department of Health Sewage Program home page: ODH Sewage Treatment Homepage
The Mercer County Minor Subdivision Rules / Planning Commission website: Mercer County Planning Commission website
HSTS InstallationPermit Process