Pasadena, CA: 4 Violations - Home Safety 72/100
26 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Pasadena: B.
This ZIP looks solid, with a few items worth a quick check.
Throughout Pasadena and across its water systems, EPA compliance data for CA shows above-average performance - violations are minimal, none of the tracked systems have recorded repeated MCL exceedances in recent cycles, and the safety picture has held steady across multiple reporting periods.
How Pasadena Compares
Data: EPA SDWIS
Water Quality Map: Pasadena, CA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Pasadena's 6 ZIP codes.
Key Facts for Pasadena Residents
- Your city's water systems recorded 4 violations in the past 5 years.
- Average lead level: 0.0001 mg/L.
- Estimated remediation: $719 per household.
- CDC health risk index: 10.69.
Pasadena's Water Providers
Water delivery in Pasadena, CA is handled by 3 utilities rather than a single system - drawn from 5 providers in federal records, each filing its own compliance reports and setting its own rates.
- B
- B
- B
Overview
We track home safety data for 26 ZIP codes in Pasadena, California (population ~150,994), covering 5 community water systems serving approximately 233,463 people region-wide. The EPA snapshots used for this build directly map water systems to 7 of 26 ZIP codes.
1 of 7 ZIP codes with a reported violation count in the available EPA record (14%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.
Home Safety Score
Average Home Safety Score for Pasadena: B (72/100)
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
Pasadena water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0001 mg/L (EPA action level: 0.015 mg/L)
- 0 of 7 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): 25 ZIP codes
- Zone 3 (Low): 1 ZIP code
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 8 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 91107 | B | 4 | 0 | Pasadena Water and Power |
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 91101 | B | Pasadena Water and Power | 164,344 |
| 91103 | B | Pasadena Water and Power | 164,344 |
| 91104 | C | Pasadena Water and Power | 164,344 |
| 91105 | B | Pasadena Water and Power | 164,344 |
| 91106 | B | Pasadena Water and Power | 164,344 |
| 91125 | — | Pasadena Water and Power | 164,344 |
All ZIP Codes in Pasadena
- 91101 [B]
- 91102
- 91103 [B]
- 91104 [C]
- 91105 [B]
- 91106 [B]
- 91107 [B] - 4 violations
- 91109
- 91110
- 91114
- 91115
- 91116
- 91117
- 91121
- 91123
- 91124
- 91125
- 91126
- 91129
- 91182
- 91184
- 91185
- 91188
- 91189
- 91191
- 91199
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.
Pasadena Community Health Snapshot
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
What's in Pasadena's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Pasadena
In Pasadena, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.
Remediation costs in Pasadena are relatively low compared to home values. The $212–$1,277 estimated range is a small fraction of median property value. Home values are 38% above the California average.
Pasadena: Lead Risk & Vulnerable Populations
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.
Lead risk in Pasadena appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Pasadena: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Pasadena contains 73 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,132. Among ZIP codes with claim records, 20% 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>$719</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.
Deep Dive Reports
Detailed analysis for Pasadena, CA