Rancho Cucamonga
CA

Is Rancho Cucamonga, CA Tap Water Safe to Drink?

Rancho Cucamonga, CA tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Contaminants including lithium have been detected at or below guideline thresholds.

1Water system
5ZIP codes
0%ZIPs above EPA guideline
Metro areaRiverside-San Bernardino-Ontario, CA
Latest data2024-03-13

Where Does Rancho Cucamonga Get Its Water?

Water in Rancho Cucamonga, CA is provided by 1 public water system: CUCAMONGA VALLEY WATER DISTRICT.

How Is Rancho Cucamonga Tap Water Treated?

Treated water is disinfected using free chlorine. Treatment includes conventional treatment (coagulation, flocculation, and filtration) and granular activated carbon filtration.

What's in Rancho Cucamonga Tap Water?

The following contaminants were detected most frequently in Rancho Cucamonga public water systems. All detected levels fall at or below EPA health guidelines in this dataset.

ContaminantPeak detectedEPA guidelineZIPs detectedStatus
lithium 9 µg/L — 0 ZIPs Within guideline
PFTrDA 0.007 µg/L — 0 ZIPs Within guideline
6:2 FTS 0.005 µg/L 0.005 µg/L 5 ZIPs Within guideline
8:2 FTS 0.005 µg/L — 0 ZIPs Within guideline
HFPO-DA 0.005 µg/L — 0 ZIPs Within guideline

Health Risk Profile for Rancho Cucamonga

Current EPA monitoring data for Rancho Cucamonga shows contaminant levels within guideline thresholds across all ZIP codes in this dataset. As with all public water systems, sensitive populations may choose to use a certified filter for additional peace of mind.

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.

Waterdrop G3P600 Reverse Osmosis System
Under-sink RO system

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 Rancho Cucamonga Tap Water

Is Rancho Cucamonga tap water safe to drink?

Rancho Cucamonga tap water currently meets EPA health guidelines across all monitored ZIP codes in this dataset. Sensitive populations may still choose to use a certified filter as a precaution.

What contaminants are in Rancho Cucamonga tap water?

The most commonly detected contaminants in Rancho Cucamonga water systems include: lithium, PFTrDA, 6:2 FTS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.

Where does Rancho Cucamonga get its drinking water?

Rancho Cucamonga receives water from one public water system, including CUCAMONGA VALLEY WATER DISTRICT.

Do I need a water filter in Rancho Cucamonga?

Current data does not show guideline exceedances in Rancho Cucamonga. A certified filter can still reduce trace contaminants and improve taste for households that prefer filtered water.

How often is Rancho Cucamonga tap water tested?

Public water systems in Rancho Cucamonga 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 2024-03-13.

Tap water reports by ZIP in Rancho Cucamonga

Water utilities serving Rancho Cucamonga, 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.

Modeled boundaries are shown with a dashed outline.

Also covers / overlaps with