VERT / GREEN
Reliable well/septic records available: plot them on the site plan.
Well, septic system and new project siting
Cross-check an addition, pool, accessory building, deck or excavation against the well, tank and leach field before final siting.
JAUNE / YELLOW
Approximate location or older system: locate components before excavation and verify applicable setbacks.
ROUGE / RED
Distances depend on system type and regulation; do not use one generic number for every project.
Construction triage
What the professional checks
- Locate components and verify applicable regulation
- Adapt siting, access and replacement area
Official sources
Sources checked: 2026-08-22. Confirm local rules and the applicable edition.
Tools related to this issue
Manage the project through closeout
V16
Advanced diagnostics to cross-check
V16 connects water, soil, climate, safety, materials and seasonal use to existing projects.
V17
Specialized systems to cross-check
V17 completes gas, soil, water, fire, climate and structural interfaces.
V27
Project risks and overlooked interfaces
V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.
V29
Household safety and compliance details
V29 connects smaller risks that often fall between finishes, appliances, plumbing and local code.