Drinking water quality · 2024
· Verified
What's in Spokane Valley, WA tap water
11 contaminants were measured in the Spokane Valley, WA water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 11
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- WA
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound above EPA limits in Spokane Valley, WA
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (1.5×)below national p90 (19.900000000000006 ng/L across detecting U.S. systems)
PFBS
● Detected (no federal limit)below national p90 (13.909999999999979 ng/L across detecting U.S. systems)
PFHxA
● Detected (no federal limit)below national p90 (12.190000000000003 ng/L across detecting U.S. systems)
PFPeA
● Detected (no federal limit)below national p90 (15.95999999999999 ng/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Spokane Valley, WA's drinking water comes from ground water, drawn from 11 sources.
Source
- NEVADA ST - AHC725
- WELL ELECTRIC - AHC996
- PARK WATER - AHC722
- RAY ST - AHC723
- + 7 more
Treatment
- Nevada St
- Well Electric
- Park Water
- + 4 more
Distribution
Historical readings · EPA Six-Year Review (2012–2019)
14 historically-detected contaminants in Spokane Valley, WA
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
ARSENIC worst: 2016 | 0.00507 mg/L within below national p90 | 0.01 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE worst: 2012 | 3.68 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE NITRITE worst: 2018 | 2.94 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
MERCURY worst: 2013 | 0.00022 mg/L within | 0.002 mg/L | '13 |
TTHM worst: 2015 | 0.00564 mg/L within | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
BARIUM worst: 2018 | 0.0595 mg/L within below national p90 | 2 mg/L | '12'13'14'15'16'17'18'19 |
SELENIUM worst: 2016 | 0.00115 mg/L within | 0.05 mg/L | '16 |
CHROMIUM worst: 2015 | 0.00131 mg/L within below national p90 | 0.1 mg/L | '15 |
COPPER worst: 2012 | 0.0083 mg/L below national p90 | — | '12'13'14'15'16'17'18'19 |
LEAD worst: 2012 | 0.0004 mg/L | — | '12'15'17 |
BROMODICHLOROMETHANE worst: 2012 | 0.00116 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMOFORM worst: 2012 | 0.00178 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.00053 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.00233 mg/L | — | '12'13'14'15'16'17'18'19 |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.97 pCi/LMaximumDetection | 5 pCi/LMCL | Within the limit |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | Not detected pCi/LMaximumDetection | 15 pCi/LMCL | None detected |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | Not detectedMaximumDetection | 0MCLG | None detected |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Volatile Organic Compounds | Not detected ug/LMaximumDetection | None set | None detected |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 1.01 ug/LMaximumDetection | 0 ug/LMCLG | Detected — no federal limit |
People also ask about Spokane Valley, WA's water
+Is Spokane Valley, WA tap water safe to drink in 2024?
Every one of the 11 contaminants measured in Spokane Valley, WA's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Spokane Valley, WA tap water?
11 contaminants were measured in Spokane Valley, WA's 2024 Consumer Confidence Report, spanning metals, disinfection byproducts, and radionuclides. 10 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Spokane Valley, WA's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Spokane Valley, WA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.