ZipCheckup grade for 92320: D.
Federal records show several conditions worth reviewing.
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Calimesa, CA (92320): PFAS Detected in Mapped Water Systems - 49/100
EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Yucaipa Valley Water District)
Health-based violation records by water system:
EPA records for the water systems mapped to 92320 in Calimesa, CA contain 19 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 3 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 3 health-based violations and 16 non-health-based (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 At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
- Radon EPA Zone 2 - county-level radon potential, not a home measurement.
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Read each of the 2 critical-level cards below for 92320 in Calimesa - 0 high-priority findings follow them in the record.
Score Breakdown
Overall Home Safety Score: 49/100
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) CRITICAL
Your Water System
ZIP code 92320 in Calimesa, California is mapped to the water system Yucaipa Valley Water District (EPA ID: CA3610055). This system provides water to approximately 52,010 people from surface water sources.
There are 5 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Yucaipa Valley Water District | CA3610055 | 52,010 | Surface water |
| South Mesa Wc | CA3310017 | 10,108 | Groundwater |
| Beaumont Cherry Valley Water District | CA3310002 | 66,841 | Groundwater |
| Plantation on the Lake Park | CA3301943 | 897 | Groundwater |
| Sharondale Mesa Hoa | CA3301879 | 340 | 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
- 92399 (Yucaipa) - 2 mi - 6 violations recorded for mapped water systems
- 92223 (Beaumont) - 5 mi - 20 violations recorded for mapped water systems
- 92359 (Mentone) - 7 mi - 5 violations recorded for mapped water systems
- 92373 (Redlands) - 8 mi - 6 violations recorded for mapped water systems
- 92374 (Redlands) - 9 mi - 6 violations recorded for mapped water systems
- 92375 (Redlands) - 9 mi
- 92555 (Moreno Valley) - 9 mi
- 92339 (Forest Falls) - 9 mi
- 92220 (Banning) - 10 mi - 18 violations recorded for mapped water systems
- 92318 (Bryn Mawr) - 11 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Yucaipa Valley Water District (CA3610055) on EPA.gov.
3 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.
Compliance History
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 92320. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFBS, PFPeA, PFHxA, PFOA, PFHxS.
Highest measured level: 0.01 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.
Health Risks from Detected Contaminants
Nitrate
High RiskEPA reference value: 10 mg/L (as nitrogen) · 2 violations on record
Blue baby syndrome in infants; potential cancer risk in adults
At-risk groups: infants under 6 months, pregnant women, people with G6PD deficiency
Treatment options (verify a product is certified to reduce this contaminant): reverse osmosis, ion exchange (anion resin), distillation · Find a filter →
Total Trihalomethanes (TTHM)
High RiskEPA reference value: 0.08 mg/L · 2 violations on record
Long-term exposure is associated with increased cancer risk, including bladder cancer; possible reproductive effects
At-risk groups: pregnant women, long-term consumers of chlorinated water
Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, point-of-entry aeration · Find a filter →
Environmental Hazards (10) CRITICAL
Home & Infrastructure (6) MODERATE
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Calimesa
Based on local data for ZIP 92320, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Gutter Installation & Repair
The median home in 92320 was built around 1971. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Calimesa is 1971; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Homes built around 1971 may be on their second or third roof. A professional inspection can catch damage before leaks start.
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 92320 safe to drink?
EPA SDWIS records 19 violations since 2021 across the water systems mapped to ZIP 92320 (primary system: Yucaipa Valley Water District), including 3 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 92320's water come from?
The recorded water source for Yucaipa Valley Water District, a system mapped to ZIP code 92320, is Surface water. This system serves approximately 52,010 people.
How does Calimesa water compare to the national average?
Calimesa's Home Safety Score ranks lower than 94% of U.S. ZIP codes, and lower than 99% of ZIP codes within California.
How can I get my water tested in Calimesa?
If Yucaipa Valley Water District 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 92320?
92320 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Riverside 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 92320's water?
Yes, PFAS have been detected in samples from water systems mapped to 92320. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. 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). Calimesa, CA (92320): PFAS Detected in Mapped Water Systems - 49/100. https://zipcheckup.com/report/92320/
@misc{zipcheckup-report-92320,
author = {{ZipCheckup}},
title = {{Calimesa, CA (92320): PFAS Detected in Mapped Water Systems - 49/100}},
year = {2026},
url = {https://zipcheckup.com/report/92320/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 92320
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 92399 | Yucaipa, CA | 2.3 mi | D | 6 |
| 92223 | Beaumont, CA | 5.2 mi | C | 20 |
| 92359 | Mentone, CA | 7.0 mi | D | 5 |
| 92373 | Redlands, CA | 8.5 mi | D | 6 |
| 92374 | Redlands, CA | 8.6 mi | D | 6 |
| 92375 | Redlands, CA | 9.0 mi | N/A | 0 |
| 92555 | Moreno Valley, CA | 9.0 mi | B | 0 |
| 92339 | Forest Falls, CA | 9.2 mi | N/A | 0 |
| 92220 | Banning, CA | 9.9 mi | C | 18 |
| 92318 | Bryn Mawr, CA | 11.4 mi | N/A | 0 |
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