Summit County, Colorado: septic system inspection at sale
Checked on November 9, 2026 against the official rule. Rule set by Summit County Environmental Health (Colorado).
General information, not legal advice. This is our summary of the official rule as we read it. The ordinance or code and the health department decide: confirm with them before you list, sign or close.
The rule
| Question | What the official text says |
|---|---|
| Triggered by | sale, major remodel Source: summitcountyco.gov |
| Deadline | Use Permit required at point of sale (and at major remodel) Source: summitcountyco.gov |
| Exemptions |
Source: summitcountyco.gov |
| Who may inspect | Approved Use Permit Inspectors (NAWT-certified or equivalent, approved by Summit County Environmental Health). official list (summitcountyco.gov) Source: summitcountyco.gov |
This is our summary of the official rule as we read it. The ordinance or code and the health department decide: confirm with them before you list, sign or close. Rule set by: Summit County Environmental Health (Colorado).
Checked on November 9, 2026: read on the official site.
Private wells in Summit County
In 2015 about 3,307 of Summit County’s 30,257 residents (11%) got their drinking water from a private well, by the USGS estimate. That is the 42nd highest share of the 64 Colorado counties in the USGS table, and the 27th highest number of private-well users.
As we read it, this rule covers the septic system, not the well.
Source: USGS county water use 2015 (Dieter et al., 2018). Ranks count the Colorado counties in the USGS table (1 = highest).
Certified labs nearest to Summit County for a well water test
Labs on the Colorado certified drinking-water list that the list marks as taking samples from homeowners or outside clients, certified for coliform bacteria, nearest first. All of them are outside Summit County.
| Lab | Town | Distance | Certified on the list for |
|---|---|---|---|
| Eagle River W / S District | Avon, CO | 22 miles (approx.) | coliform bacteria, arsenic |
| Gilpin County Public Health Agency | Black Hawk, CO | 36 miles (approx.) | coliform bacteria |
| Colorado Analytical Laboratory - Lakewood | Lakewood, CO | 53 miles (approx.) | coliform bacteria |
Source: CDPHE Drinking Water Lab Certifications (Looker Studio report on cdphe.colorado.gov/dwlabs) (Live report, no edit date shown; data read by the report at 2026-11-02 20:39 UTC (Looker Studio dataTimestamp); read November 2, 2026). Straight-line distance from the centre of Summit County (the average of its Census ZIP-area points); “approx.” = lab placed at its ZIP centre. Call the lab first: lists do not say which household tests each lab takes or what it charges.
Nearest other sale-time rules
Buying or selling near a county line? These are the closest other local rules in our census to Summit County.
| Rule | State | Distance | Covers | Checked |
|---|---|---|---|---|
| Clear Creek County | Colorado | about 24 miles | Septic system | November 9, 2026 |
| Boulder County | Colorado | about 53 miles | Septic system | November 9, 2026 |
| Teller County | Colorado | about 71 miles | Septic system | November 9, 2026 |
| Gunnison County | Colorado | about 79 miles | Septic system | November 9, 2026 |
| Larimer County | Colorado | about 82 miles | Septic system | November 9, 2026 |
Straight-line distance between county centres (the average of each county’s Census ZIP-area points). Townships, villages and health districts are placed at the centre of their county.