Water Quality Report · Updated October 07, 2026
GOLDEN STATE WC - WEST ORANGE COUNTY
GOLDEN STATE WC - WEST ORANGE COUNTY delivers tap water graded F (47/100) by TapWaterSafety.org. The utility serves approximately 114,379 residents in ANAHEIM, California using surface water (purchased). The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Arsenic significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. For questions, the utility can be reached at 310-890-2804.
Is ANAHEIM tap water safe to drink?
GOLDEN STATE WC - WEST ORANGE COUNTY delivers tap water that earns a grade of F (47/100) from TapWaterSafety.org — a poor rating, with significant contamination concerns and/or recent violations.
The utility serves 114,379 residents in ANAHEIM, drawing from surface water (purchased).
Public testing data identifies 20 contaminants in this water above EWG's health-based guidelines, including: Perfluorohexane sulfonate (PFHXS), Arsenic, Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Bromodichloromethane, Chromium (hexavalent), Haloacetic acids (HAA9), Dibromochloromethane, Uranium, Dibromoacetic acid, Nitrate, Nitrate and nitrite, Perfluorooctanoic acid (PFOA), Perfluorooctane sulfonate (PFOS), Trichloroacetic acid, Chloroform, Bromochloroacetic acid, Dichloroacetic acid, Bromoform, Perchlorate. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for GOLDEN STATE WC - WEST ORANGE COUNTY (system ID CA3010022) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for ANAHEIM residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for GOLDEN STATE WC - WEST ORANGE COUNTY.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 2.28 ppt, 2280x above the EWG health guideline of 0.001 ppt.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.07 ppb, 517x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 36.2 ppb, 362x above the EWG health guideline of 0.1 ppb.
Contact GOLDEN STATE WC - WEST ORANGE COUNTY
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for ANAHEIM
Filters matched to the specific contaminants in this water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 47/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
2.28 ppt | 0.001 | 10.0 | — | — | — | — | 2280× over |
| Arsenic Heavy metal |
2.07 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 517× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
11.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 77× over |
| Bromodichloromethane Disinfection byproduct |
3.08 ppb | 0.06 | — | — | — | — | — | 51× over |
| Chromium (hexavalent) Heavy metal |
0.884 ppb | 0.02 | — | — | — | — | — | 44× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
2.26 ppb | 0.06 | — | — | — | — | — | 38× over |
| Dibromochloromethane Disinfection byproduct |
3.59 ppb | 0.1 | — | — | — | — | — | 36× over |
| Uranium Radiological |
8.7 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 20× over |
| Dibromoacetic acid Disinfection byproduct |
0.554 ppb | 0.03 | — | — | — | — | — | 18× over |
| Nitrate Inorganic |
1.96 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 14× over |
| Nitrate and nitrite Inorganic |
2.02 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 14× over |
| Perfluorooctanoic acid (PFOA) PFAS |
1.24 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 14× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
3.27 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 11× over |
| Trichloroacetic acid Disinfection byproduct |
0.789 ppb | 0.1 | — | — | — | — | — | 7.9× over |
| Chloroform Disinfection byproduct |
2.99 ppb | 0.4 | — | — | — | — | — | 7.5× over |
| Bromochloroacetic acid Disinfection byproduct |
0.138 ppb | 0.02 | — | — | — | — | — | 6.9× over |
| Dichloroacetic acid Disinfection byproduct |
1.3 ppb | 0.2 | — | — | — | — | — | 6.5× over |
| Bromoform Disinfection byproduct |
1.7 ppb | 0.5 | — | — | — | — | — | 3.4× over |
| Perchlorate Disinfection byproduct |
1.52 ppb | 1.0 | — | — | — | — | — | 1.5× over |
| Radium, combined (-226 and -228) Radiological |
0.04 pCi/L | 0.05 | 5.0 | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
114.1 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
5.6 ppb | 40.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.043 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Vanadium Other |
1.86 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
41.5 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
1.71 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.707 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
0.306 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Strontium Radiological |
0.601 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0208 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.319 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.181 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.067 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| 1-Butanol Other |
0.0831 ppb | — | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.0493 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.462 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.0124 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
21.2 ppb | — | — | — | — | — | — | 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
GOLDEN STATE WC - WEST ORANGE COUNTY service area
This water system serves 1 community in Orange County, California. Click any city for its dedicated tap water quality page.
Find the right filter for ANAHEIM water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.