Jamul, CA Home Safety: Home Safety 92/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Jamul: A.
No federal data flags a major home-safety concern for this ZIP.
Jamul, CA: reliable drinking water, above-average safety record, few violations.
How Jamul Compares
Data: EPA SDWIS
What You Should Know About Jamul Water
- Homes built before 1986: 58% - older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 10.18.
Who Supplies Your Water in Jamul
Because residential water in Jamul, CA flows primarily through a single utility, infrastructure decisions, rate-setting, and EPA compliance are all managed within one organizational structure. Federal records show 1 system active in the area, but one provider dominates the service landscape for most homes and apartments.
- A
Overview
We track home safety data for 1 ZIP code in Jamul, California (population ~9,466), covering 1 community water system serving approximately 238,008 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Jamul: A (92/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Jamul water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 91935 | A | Otay Water District | 238,008 |
All ZIP Codes in Jamul
- 91935 [A]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Jamul
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Jamul
With 58% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Heavily weighted toward older construction, Jamul's housing stock carries a median build year of 1986. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Jamul were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Jamul Homeowners
The household financial picture for Jamul homeowners is proportionally favorable - addressing documented issues claims a small slice of equity, and the cost-to-value ratio puts this area well within the manageable tier.
Remediation costs in Jamul are relatively low compared to home values. The $300–$1,500 estimated range is a small fraction of median property value. Home values are 14% above the California average.
Lead Exposure Risk for Children in Jamul
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
When older housing represents 58% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Jamul address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Jamul, CA