Chula Vista, CA (91913) Home Safety: 92/100
EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: Otay Water District)
EPA records for the water systems mapped to 91913 in Chula Vista, CA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records 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 3 - county-level radon potential, not evidence of a low home result.
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Safety records for Chula Vista (91913) contain exactly one critical finding.
Score Breakdown
Overall Home Safety Score: Score unavailable
Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.
The score is withheld for this ZIP: a water system serving it has EPA UCMR5 PFAS results above the value of an EPA PFAS MCL (with compliance required from 2029), and the current score input does not include that system. We will show the score again once it is recalculated with that system's PFAS results included.
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 (7) HIGH
Your Water System
ZIP code 91913 in Chula Vista, California is mapped to the water system Otay Water District (EPA ID: CA3710034). This system provides water to approximately 238,008 people from surface water sources.
There are 2 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Otay Water District | CA3710034 | 238,008 | Surface water |
| Sweetwater Authority | CA3710025 | 191,282 | Surface water |
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
- 91914 (Chula Vista) - 1 mi
- 91902 (Bonita) - 2 mi
- 91908 (Bonita) - 3 mi
- 91915 (Chula Vista) - 3 mi
- 92139 (San Diego) - 4 mi
- 91910 (Chula Vista) - 5 mi
- 91977 (Spring Valley) - 5 mi
- 91911 (Chula Vista) - 5 mi - 1 violation recorded for mapped water systems
- 92114 (San Diego) - 5 mi
- 91909 (Chula Vista) - 6 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Otay Water District (CA3710034) on EPA.gov.
5 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 91913. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFBA, PFOA, PFBS, PFHxS, PFHxA, PFPeA, PFOS, PFHpA.
Highest measured level: 0.0123 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 (8) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Chula Vista
Based on local data for ZIP 91913, 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 91913 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 91913 (primary system: Otay Water District), 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 91913's water come from?
The recorded water source for Otay Water District, a system mapped to ZIP code 91913, is Surface water. This system serves approximately 238,008 people.
How can I get my water tested in Chula Vista?
If Otay 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 91913?
91913 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in San Diego 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 91913's water?
Yes, PFAS have been detected in samples from water systems mapped to 91913. 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). Chula Vista, CA (91913) Home Safety: 92/100. https://zipcheckup.com/report/91913/
@misc{zipcheckup-report-91913,
author = {{ZipCheckup}},
title = {{Chula Vista, CA (91913) Home Safety: 92/100}},
year = {2026},
url = {https://zipcheckup.com/report/91913/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 91913
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 91914 | Chula Vista, CA | 1.3 mi | A | 0 |
| 91902 | Bonita, CA | 2.4 mi | B | 0 |
| 91908 | Bonita, CA | 2.6 mi | N/A | 0 |
| 91915 | Chula Vista, CA | 2.9 mi | A | 0 |
| 92139 | San Diego, CA | 4.1 mi | A | 0 |
| 91910 | Chula Vista, CA | 4.9 mi | B | 0 |
| 91977 | Spring Valley, CA | 5.1 mi | A | 0 |
| 91911 | Chula Vista, CA | 5.1 mi | B | 1 |
| 92114 | San Diego, CA | 5.4 mi | A | 0 |
| 91909 | Chula Vista, CA | 5.8 mi | N/A | 0 |
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