Tap Water Quality Report
Tap water quality in Lacey, Washington
Tap water in Lacey, Washington receives a grade of C (76/100) from TapWaterSafety.org. It's served by LACEY WATER DEPARTMENT. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Arsenic significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in Lacey's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving Lacey.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 5.73 ppb, 95x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 8.6 ppb, 86x above the EWG health guideline of 0.1 ppb.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 0.308 ppb, 77x above the EWG health guideline of 0.004 ppb.
EPA compliance record
Official U.S. EPA records for LACEY WATER DEPARTMENT (system ID WA5343500) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 01/01/2024 | Resolved |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for Lacey
Filters matched to the specific contaminants in Lacey's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in Lacey's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
5.73 ppb | 0.06 | — | — | — | — | — | 95× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
8.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 86× over |
| Arsenic Heavy metal |
0.308 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 77× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
7.16 ppb | 0.15 | 80.0 | 100 | — | — | — | 48× over |
| Trichloroacetic acid Disinfection byproduct |
2.41 ppb | 0.1 | — | — | — | — | — | 24× over |
| Bromodichloromethane Disinfection byproduct |
0.858 ppb | 0.06 | — | — | — | — | — | 14× over |
| Nitrate Inorganic |
1.72 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 12× over |
| Nitrate and nitrite Inorganic |
1.66 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 12× over |
| Chromium (hexavalent) Heavy metal |
0.228 ppb | 0.02 | — | — | — | — | — | 11× over |
| Dichloroacetic acid Disinfection byproduct |
1.9 ppb | 0.2 | — | — | — | — | — | 9.5× over |
| Radium, combined (-226 and -228) Radiological |
0.42 pCi/L | 0.05 | 5.0 | — | — | — | — | 8.5× over |
| Chloroform Disinfection byproduct |
2.3 ppb | 0.4 | — | — | — | — | — | 5.7× over |
| Dibromochloromethane Disinfection byproduct |
0.496 ppb | 0.1 | — | — | — | — | — | 5.0× over |
| Chlorate Disinfection byproduct |
153.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.0971 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Vanadium Other |
2.36 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
8.9 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.00292 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Xylenes (total) Volatile organic compound |
2.15 ppb | 1800.0 | 10000.0 | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
1.04 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.544 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.233 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0833 ppb | 1500.0 | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from LACEY WATER DEPARTMENT.