ZipCheckup grade for 92350: C.
A mixed picture - some signals here are worth your attention.
Your top priority: use a filter certified to reduce PFAS; check which ones. Check your ZIP → EPA PFAS info
Loma Linda, CA (92350): PFAS Detected in Mapped Water Systems - 58/100
EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: City of Loma Linda)
EPA records for the water systems mapped to 92350 in Loma Linda, CA contain 1 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 1 violation (non-health) (since 2021).
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 2 - county-level radon potential, not a home measurement.
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Safety datasets compiled for 92350 in Loma Linda return 1 finding at the high-priority level - each is backed by source data and classification criteria, and the critical tier of the same record shows no entries.
Score Breakdown
Overall Home Safety Score: 58/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (8) HIGH
Your Water System
ZIP code 92350 in Loma Linda, California is mapped to the water system City of Loma Linda (EPA ID: CA3610013). This system provides water to approximately 25,129 people from groundwater sources.
There are 2 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| City of Loma Linda, | CA3610013 | 25,129 | Groundwater |
| San Bernardino City | CA3610039 | 214,665 | Groundwater |
Other Water Quality Reports in California
- 90001 (Los Angeles)
- 90002 (Los Angeles)
- 90003 (Los Angeles)
- 90004 (Los Angeles)
- 90005 (Los Angeles)
- 90006 (Los Angeles)
- 90007 (Los Angeles)
- 90008 (Los Angeles)
- 90009 (Los Angeles)
- 90010 (Los Angeles)
- 90011 (Los Angeles)
- 90012 (Los Angeles)
- 90013 (Los Angeles)
- 90014 (Los Angeles)
- 90015 (Los Angeles)
- 90016 (Los Angeles)
- 90017 (Los Angeles)
- 90018 (Los Angeles)
- 90019 (Los Angeles)
- 90020 (Los Angeles)
Nearby Water Quality Reports
- 92357 (Loma Linda) - <1 mi
- 92354 (Loma Linda) - <1 mi - 2 violations recorded for mapped water systems
- 92318 (Bryn Mawr) - 2 mi
- 92324 (Colton) - 2 mi - 3 violations recorded for mapped water systems
- 92412 (San Bernardino) - 2 mi
- 92408 (San Bernardino) - 2 mi - 2 violations recorded for mapped water systems
- 92313 (Grand Terrace) - 3 mi - 2 violations recorded for mapped water systems
- 92402 (San Bernardino) - 4 mi
- 92403 (San Bernardino) - 4 mi
- 92406 (San Bernardino) - 4 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Loma Linda (CA3610013) on EPA.gov.
4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 92350.
Detected compounds: PFBS, PFHxS, PFHxA, PFPeA.
Highest measured level: 0.0044 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (10) CRITICAL
Home & Infrastructure (6) OK
Cost & Community (6) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Loma Linda
Based on local data for ZIP 92350, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Roofing Inspection & Repair
Active weather alerts in California increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 92350 safe to drink?
EPA SDWIS records 1 violation since 2021 across the water systems mapped to ZIP 92350 (primary system: City of Loma Linda), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 92350's water come from?
The recorded water source for City of Loma Linda, a system mapped to ZIP code 92350, is Groundwater. This system serves approximately 25,129 people.
How does Loma Linda water compare to the national average?
Loma Linda's Home Safety Score ranks lower than 85% of U.S. ZIP codes, and lower than 95% of ZIP codes within California.
How can I get my water tested in Loma Linda?
If City of Loma Linda supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
What is the radon risk for 92350?
92350 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in San Bernardino County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 92350's water?
Yes, PFAS have been detected in samples from water systems mapped to 92350. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Loma Linda, CA (92350): PFAS Detected in Mapped Water Systems - 58/100. https://zipcheckup.com/report/92350/
@misc{zipcheckup-report-92350,
author = {{ZipCheckup}},
title = {{Loma Linda, CA (92350): PFAS Detected in Mapped Water Systems - 58/100}},
year = {2026},
url = {https://zipcheckup.com/report/92350/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 92350
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 92357 | Loma Linda, CA | <1 mi | N/A | 0 |
| 92354 | Loma Linda, CA | <1 mi | C | 2 |
| 92318 | Bryn Mawr, CA | 1.7 mi | N/A | 0 |
| 92324 | Colton, CA | 1.9 mi | C | 3 |
| 92412 | San Bernardino, CA | 2.2 mi | N/A | 0 |
| 92408 | San Bernardino, CA | 2.5 mi | C | 2 |
| 92313 | Grand Terrace, CA | 3.2 mi | C | 2 |
| 92402 | San Bernardino, CA | 4.5 mi | N/A | 0 |
| 92403 | San Bernardino, CA | 4.5 mi | N/A | 0 |
| 92406 | San Bernardino, CA | 4.5 mi | N/A | 0 |
Nearby ZIP Code Reports
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