Radon mitigation in South Jordan and Daybreak
Most South Jordan homes are less than 25 years old, and that doesn't protect them from radon. State test data puts both South Jordan and Daybreak well above EPA's action level on average.
South Jordan at a glance. In Utah's state test-kit data (2006–2019), the South Jordan area averaged 5.0 pCi/L (47% of tests at or above 4) and Daybreak averaged 4.9 (41%) (Source: Utah IBIS). Seven in ten South Jordan homes were built in 2000 or later (Source: U.S. Census ACS).
South Jordan radon test results
| Area (Utah IBIS small area) | Average, pCi/L | 95% range of the average | Tests at or above 4 | Tests |
|---|---|---|---|---|
| South Jordan | 5.0 | 4.68–5.24 | 46.9% | 1,202 |
| Daybreak | 4.9 | 4.55–5.28 | 41.2% | 1,216 |
Source: Utah IBIS (Source: Utah IBIS). Short-term results read higher than year-round averages. Caveats.
"But my house is new"
This is the most common South Jordan question. EPA is direct: any home can have a radon problem, new or old, well sealed or drafty (Source: EPA). A tight, energy-efficient new house can still draw soil gas in through slab joints, plumbing penetrations and sump openings.
What's specific to new Utah homes:
- Radon-resistant construction is voluntary in Utah. State code only says that if a builder installs passive radon controls, they must follow the radon appendix of the International Residential Code (Source: Utah Code 15A-3-206). Some Daybreak and South Jordan builders include a passive pipe; many homes have none.
- Check for a passive pipe. Look for a labeled PVC pipe coming up from the basement slab (often in a utility room) and running toward the attic. If you have one and test at 4 or higher, EPA notes a fan can easily be added (Source: EPA). That's usually the simplest fix there is.
- Test after you move in. EPA recommends testing every new home after occupancy, even ones built radon-resistant (Source: EPA).
South Jordan homes
| South Jordan housing (ACS 2020–2024) | Value |
|---|---|
| Median year built | 2007 |
| Homes built 2000 or later | 70% |
| Built 1980–1999 | 21% |
| Built before 1980 | 9% |
| Owner-occupied | 81% |
| Housing units | 27,365 |
Source: U.S. Census ACS 2020–2024 (Source: U.S. Census ACS).
With a median build year of 2007 and 81% owner-occupied (Source: U.S. Census ACS), a lot of South Jordan installs happen in finished basements, often right after a buyer's inspection. That makes pipe routing (exterior wall vs. interior to the attic) the main cost question. How routing affects cost.
Cost in South Jordan
No South Jordan–specific price data yet. Utah's typical figure is about $1,800–$2,000 (Source: Utah DEQ). Adding a fan to an existing passive pipe should come in well under a full install; ask for that as a separate line item. Try the estimator, and get written bids from licensed contractors.
Nearby
West Jordan (north) · Herriman and Riverton (south and west) · Sandy and Draper (east) · All cities
Talk to a licensed contractor who works in South Jordan
Call (801) 854-8750. Tell us whether you have a passive pipe and your test result, and we'll connect you with a licensed Utah contractor who serves South Jordan and Daybreak.
Sources
Last reviewed October 22, 2026.
- Indoor radon levels by county and ZIP, query module (short-term tests 2006–2019; dataset updated Jan. 31, 2020), Utah Dept. of Health and Human Services / Utah DEQ Indoor Radon Program. Accessed October 22, 2026.
- American Community Survey 2020–2024 5-year estimates, tables B25034, B25035, B25003 (via Census Reporter), U.S. Census Bureau. Accessed October 22, 2026.
- Home Buyer's and Seller's Guide to Radon (EPA 402/K-24/001, rev. March 2024), U.S. Environmental Protection Agency. Accessed October 22, 2026.
- Utah Code § 15A-3-206 (amendments to the IRC), Utah State Legislature. Accessed October 22, 2026.
- High radon levels? What's next, Utah Department of Environmental Quality. Accessed October 22, 2026.