Septic system requirements in Middlesex County, Connecticut
The septic rules landplan.io applies in Middlesex County, what a septic tank costs there, and the parcel data we hold.
Updated
Design a septic system for an address in Middlesex County
Connecticut's state rules apply in Middlesex County: landplan.io has no county rules of its own here. State rules: Reviewed See Connecticut's rules
Septic systems allowed in Middlesex County
The system types landplan.io permits in Middlesex County:
- Elevated Sand Mound System
- Low-pressure distribution (LPD) System
- Leaching Trench System
- Leaching Gallery
- GST System
- Leaching Pit System
- Discharging System
Septic tank size in Middlesex County
The daily design flow of a home: 150 gal/day per bedroom, at least 240 gal/day. The septic tank is sized from that flow:
| Daily design flow | Minimum tank |
|---|---|
| up to 450 gal/day | 1,000 gallons |
| 450 to 525 gal/day | 1,125 gallons |
| 525 to 600 gal/day | 1,250 gallons |
| 600 to 675 gal/day | 1,400 gallons |
| 675 to 750 gal/day | 1,525 gallons |
| 750 to 825 gal/day | 1,650 gallons |
| 825 to 900 gal/day | 1,775 gallons |
| 900 to 975 gal/day | 1,900 gallons |
| 975 to 1,050 gal/day | 2,025 gallons |
| 1,050 to 1,125 gal/day | 2,150 gallons |
| 1,125 to 1,200 gal/day | 2,275 gallons |
| 1,200 to 1,275 gal/day | 2,400 gallons |
| 1,275 to 1,350 gal/day | 2,525 gallons |
| 1,350 to 1,425 gal/day | 2,650 gallons |
| 1,425 to 1,500 gal/day | 2,775 gallons |
Septic setbacks in Middlesex County
| From | To | Distance |
|---|---|---|
| Polygon | Existing Septic Component to be Abandoned | 5 ft |
These are the values the landplan.io design engine applies in Middlesex County. Confirm a design with the Connecticut health department or your county's before you build.
Septic companies, designers and jobs in Connecticut
- Septic companies and distributors in Connecticut
- Septic designers in Connecticut
- Septic design jobs in Connecticut
Where the rules come from
The regulations and documents landplan.io's Middlesex County, Connecticut rules are read from:
- Public Health Code Sections 19-13-B100a and 19-13-B103 (On-site Sewage Disposal Systems with Design Flows of 5,000 Gallons per Day or Less) (Regs. Conn. State Agencies §19-13-B100a; §19-13-B103 through B103f)
- Technical Standards for Subsurface Sewage Disposal Systems (incorporated by reference into the Public Health Code) (Technical Standards for Subsurface Sewage Disposal Systems, adopted pursuant to Regs. Conn. State Agencies §19-13-B103d)
Near Middlesex County
- New haven County
- New london County
- Hartford County
- Tolland County
- Windham County
- Litchfield County
- Fairfield County
- All of Connecticut
Questions
What septic systems are allowed in Middlesex County?
landplan.io designs by Connecticut's state rules there and permits: Elevated Sand Mound System, Low-pressure distribution (LPD) System, Leaching Trench System, Leaching Gallery, GST System, Leaching Pit System and Discharging System.
What size septic tank do I need in Middlesex County?
landplan.io sizes the septic tank in Middlesex County from the daily design flow: up to 450 gal/day: 1,000 gallons; 450 to 525 gal/day: 1,125 gallons; 525 to 600 gal/day: 1,250 gallons; larger flows need larger tanks. A home's design flow is 150 gal/day per bedroom, at least 240 gal/day.