Septic Systems

The CT Public Health Code includes Onsite Sewage Disposal Regulations and Technical Standards for Subsurface Sewage Disposal Systems. The septic regulations establish minimum requirements for household and small commercial septic systems, a/k/a subsurface sewage disposal systems, with a capacity of 7,500 gallons per day or less, non-discharging toilet systems, and procedures for the issuance of permits or approvals of such systems by the director of health or registered sanitarian as required by the CT General Statutes (effective August 16, 1982)

The overall goal of Public Health Code Section 19-13-B100a is to prevent people from over-building on their land. This may result in not having enough room to repair their septic system to meet all Public Health Code Regulations. The Connecticut Public Health Code requires evaluation of technical data in our files or the conducting of lot soil testing to show how your lot can support a septic system in the future. The regulation also requires new additions be properly spaced from existing septic systems. A technical review of your application and existing records will determine if soil testing is needed


Additional Resources:

CT DPH Home Buyer's Guide,

Septic Systems 101

EPA: A Homebuyer's Guide to Septic Systems

EPA: New Homebuyer's Septic Guide Brochure

EPA: Septic Smart

DPH Fact Sheet: Sewage Backups - Information for Residents