Pasadena Water and Power
EPA ID: CA1910124 · 164,344 people served · 31 ZIP codes
Although 5 violations appeared on Pasadena Water and Power's record, all have been remedied — currently compliant, 164,344 served.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 78% chance of violation in next 12 months
Violations went from 26 (2021) to 52 (2025). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Pasadena Water and Power Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Pasadena Water and Power serves a community with a median household income of $113,703 and an estimated 271,081 residents across its service area. Approximately 84% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 48% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Pasadena Water and Power's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 2% of homes in Los Angeles County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Pasadena Water and Power compares to EPA limits
What This Means For You
Consumer Confidence Report Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Total Coliform at 1 presence exceeds the EPA maximum of presence.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 22 detections recorded. 7 exceed federal EPA limits (4 ppt for PFOA/PFOS). 4 exceed state limits.
Comparable Water Systems
Similar-sized systems in California
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Pasadena Water and Power (EPA ID: CA1910124) is a community water system in California that serves approximately 164,344 people from surface water sources.
This system provides water to 31 ZIP codes across 6 communities.
Average Home Safety Score: B (80/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2023 | Total Coliform | Monitoring | Resolved |
| October 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| September 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 4 | No |
| Total Coliform | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 91108 | 0.008 mg/L | No | N/A |
| 91101 | 0.0018 mg/L | No | N/A |
| 91102 | 0.0018 mg/L | No | N/A |
| 91103 | 0.0018 mg/L | No | N/A |
| 91104 | 0.0018 mg/L | No | N/A |
| 91105 | 0.0018 mg/L | No | N/A |
| 91106 | 0.0018 mg/L | No | N/A |
| 91107 | 0.0018 mg/L | No | N/A |
| 91109 | 0.0018 mg/L | No | N/A |
| 91110 | 0.0018 mg/L | No | N/A |
| 91114 | 0.0018 mg/L | No | N/A |
| 91115 | 0.0018 mg/L | No | N/A |
| 91116 | 0.0018 mg/L | No | N/A |
| 91117 | 0.0018 mg/L | No | N/A |
| 91121 | 0.0018 mg/L | No | N/A |
| 91123 | 0.0018 mg/L | No | N/A |
| 91124 | 0.0018 mg/L | No | N/A |
| 91125 | 0.0018 mg/L | No | N/A |
| 91126 | 0.0018 mg/L | No | N/A |
| 91129 | 0.0018 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 12 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 19 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 31 ZIP codes:
90041 · 91001 · 91011 · 91101 · 91102 91103 · 91104 · 91105 · 91106 · 91107 91108 · 91109 · 91110 · 91114 · 91115 91116 · 91117 · 91121 · 91123 · 91124 91125 · 91126 · 91129 · 91182 · 91184 91185 · 91188 · 91189 · 91191 · 91199 91775
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Pasadena Water and Power (CA1910124) on EPA.gov.
Frequently Asked Questions
Is Pasadena Water and Power water safe to drink?
Pasadena Water and Power has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Pasadena Water and Power serve?
Pasadena Water and Power serves approximately 164,344 people across 31 ZIP codes in California.
Where does Pasadena Water and Power get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Pasadena Water and Power (EPA ID: CA1910124) — request the latest Consumer Confidence Report or ask about specific contaminants.