Radon Testing and Mitigation in Newport, WA

Newport sits on the Pend Oreille River at the Idaho line, near the terminal moraine of the ice lobe that once filled the valley. Of the three northeast Washington counties, Pend Oreille has the highest share of elevated radon tests: 49.3% of reported home tests reached the EPA action level of 4.0 pCi/L. About two in three county residents supply their own water.

Or call (509) 278-2215

48-hour test from $195 · Systems from $1,295 · Post-mitigation test included

How it works in Newport

1. STEP 1
   Test

   A 48-hour continuous monitor in your lowest living level, under closed-house conditions. Report the same day it comes out.

2. STEP 2
   Look and quote

   We check the foundation, run a suction test and plan the pipe route for Newport winters. You get a fixed price in writing.

3. STEP 3
   Install

   Most systems take one day: suction point, sealing, fan, manometer and the electrical permit.

4. STEP 4
   Re-test

   A post-mitigation test at least 24 hours after the fan starts shows the new number. The guarantee is below 4.0 pCi/L.

Radon mitigation cost in Newport

Pend Oreille PUD, headquartered in Newport, supplies electricity across the county, and its flat energy rate is among the lowest in the region, so a fan costs little to keep running. Federal utility data also show Avista and Northern Lights serving parts of Pend Oreille County; if one of them sends your bill, the running cost differs from the figure here.

Starting prices include the electrical permit and the post-mitigation test. Bold: systems common in Newport homes. Estimate your system →

for a typical 60-watt fan running around the clock. Energy charge only, at 2026 residential rates.

A 20-watt fan costs about a third of that, a 90-watt fan half again as much.

Permits and local rules in Newport

Newport at a glance

Area figures describe the neighborhood, not your home. Only a test tells you your number. Sources are listed at the end of this page.

Moraine, valley fill and granite around Newport

Newport stands where the Pend Oreille River ice lobe ran out. The glacial till near town includes that lobe's terminal moraine, a poorly sorted mix of clay, silt, sand and gravel dropped at the southern end of the ice. A mix that poorly sorted changes from one lot to the next, so the soil under a slab is hard to judge from the surface, and so is the path radon takes through it.

The mountains north and northeast of town, around Bead Lake, are a different kind of ground. State geologists mapped Belt Supergroup rock there, intruded by Cretaceous and possibly Tertiary plutons that earlier mapping assigned to the Kaniksu batholith. Extensive glacial and river deposits are confined mainly to the valleys of the Pend Oreille River and the Lower West Branch of the Priest River.

Pend Oreille County's test record backs this up, with a caveat about size. From 1990 through 2020, 140 of 284 reported home tests reached 4.0 pCi/L or more. So few tests come in each year that the yearly share jumps, from 64% in 2019 to 33% in 2020. In the 1991–92 state survey, 55 county homes averaged 7.2 pCi/L on their lowest level, and one reached 136.9.

pCi/L, the highest single reading among 55 Pend Oreille County homes in the 1991–92 state survey⁸

Newport questions