Temecula, CA Home Safety: Home Safety 58/100
5 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Temecula: C.
A mixed picture - some signals here are worth your attention.
In recent monitoring cycles, Temecula tap water shows a mixed record for CA - several systems have documented violations alongside areas with clean compliance histories.
How Temecula Compares
Data: EPA SDWIS
Temecula Water: The Quick Version
- Average lead level: 0.0028 mg/L.
- Homes built before 1986: 21% - older plumbing may contain lead solder.
- Estimated remediation: $1,820 per household.
- CDC health risk index: 12.09 - above typical levels.
Water Systems Serving Temecula
Federal drinking water records identify 5 systems in Temecula, CA. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations - so service conditions are not uniform city-wide.
- C
- C
- C
Overview
We track home safety data for 5 ZIP codes in Temecula, California (population ~127,714), covering 5 community water systems serving approximately 916,435 people region-wide. The EPA snapshots used for this build directly map water systems to 3 of 5 ZIP codes.
The available EPA record reports 0 violations for 3 ZIP codes with a reported violation count.
Home Safety Score
Average Home Safety Score for Temecula: C (58/100)
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
Temecula water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0028 mg/L (EPA action level: 0.015 mg/L)
- 0 of 3 ZIP codes with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 5 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 92590 | C | Rancho California Water District | 146,147 |
| 92591 | C | Eastern Municipal Water District | 666,581 |
| 92592 | C | Eastern Municipal Water District | 666,581 |
All ZIP Codes in Temecula
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.
CDC Health Data for Temecula
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
How Old Is Temecula's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Temecula has a newer housing profile - median build year 1998, placing most homes after the 1986 lead-solder ban.
Most homes in Temecula were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Temecula: Remediation Cost in Perspective
Low proportionality - that's the Temecula picture when remediation costs are placed against typical home equity.
Remediation costs in Temecula are relatively low compared to home values. The $940–$2,880 estimated range is a small fraction of median property value. Home values are 10% below the California average.
Protecting Children from Lead in Temecula
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.
Where pre-rule stock represents a smaller fraction of the inventory - 21% across Temecula - the structural drivers of household exposure run thinner. Aggregate readings under the federal benchmark reinforce that picture, with one-home draws remaining the only direct measurement for a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Temecula
Historical NFIP data for Temecula contains 23 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $17,766. Among ZIP codes with claim records, 25% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,820</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in Temecula
- Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Temecula, CA