Is Garden Grove, CA Tap Water Safe to Drink?
Garden Grove tap water meets federal Safe Drinking Water Act standards but 7 of 7 ZIP codes show detections above EPA health guidelines, primarily for lithium. A certified filter is recommended for households that want an additional layer of protection.
Where Does Garden Grove Get Its Water?
Water in Garden Grove, CA is provided by 3 public water systems: CITY OF GARDEN GROVE, CITY OF SANTA ANA and GOLDEN STATE WC - WEST ORANGE COUNTY.
How Is Garden Grove Tap Water Treated?
Treated water is disinfected using free chlorine and chloramines and ozone. Treatment includes conventional treatment (coagulation, flocculation, and filtration), ion exchange and post-ozone biofiltration.
What's in Garden Grove Tap Water?
The following contaminants were detected most frequently in Garden Grove public water systems. 7 of 7 ZIP codes showed detections above EPA health guidelines.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| lithium | 38.456 µg/L | 10 µg/L | 7 ZIPs | Above guideline |
| PFTrDA | 0.007 µg/L | — | 0 ZIPs | Within guideline |
| 6:2 FTS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| HFPO-DA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for Garden Grove
Based on EPA monitoring data, 7 of 7 ZIP codes in Garden Grove have recorded detections above EPA health guidelines. Sensitive populations such as infants, pregnant individuals, and those with weakened immune systems may benefit from an additional layer of protection such as a certified point-of-use filter.
Best Broad-Spectrum Filters for This Water Profile
This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
See recommendations matched to your exact address: choose your ZIP code below.
Frequently Asked Questions about Garden Grove Tap Water
Is Garden Grove tap water safe to drink?
Garden Grove tap water meets Safe Drinking Water Act requirements but 7 of 7 ZIP codes show contaminant levels above EPA health-based guidelines. A certified point-of-use filter adds an extra layer of protection.
What contaminants are in Garden Grove tap water?
The most commonly detected contaminants in Garden Grove water systems include: lithium, PFTrDA, 6:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does Garden Grove get its drinking water?
Garden Grove receives water from 3 public water systems, including CITY OF GARDEN GROVE.
Do I need a water filter in Garden Grove?
If your ZIP code is among those with detections above EPA health guidelines, choose a filter certified for the specific contaminants shown in your ZIP report. Reverse osmosis is generally the broadest option for PFAS, lithium, and many other dissolved contaminants.
How often is Garden Grove tap water tested?
Public water systems in Garden Grove are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2025-11-12.
Tap water reports by ZIP in Garden Grove
- 92840 - Eldorado Mobile Home Estates, Garden Grove tap water report Higher concern
- 92841 - Katella Mobile Home Estates, Garden Grove tap water report Higher concern
- 92842 - Garden Grove tap water report Higher concern
- 92843 - Sahara Mobile Home Park, Garden Grove tap water report Higher concern
- 92844 - Ocean Breeze Trailer Park, Garden Grove tap water report Higher concern
- 92845 - Los Robles Mobile Home Park, Garden Grove tap water report Higher concern
- 92846 - Garden Grove tap water report Higher concern
Water utilities serving Garden Grove, CA
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- CITY OF GARDEN GROVEAction advised