ZIP 94523 (Pleasant Hill, CA) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 94523 in Pleasant Hill, California (Contra Costa County) has 826 EPA-tracked facilities, including 1 High-Risk sites (0.1%), 0 active violators, and $14,603 in federal penalties. Beyond industrial pollution, properties in ZIP 94523 are screened across 2 historical Contra Costa County FEMA disasters, USDA Soil Foundation Shrink-Swell (HIGH signal), Tap Water & Watershed Permits (22), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 94523 (Pleasant Hill, CA) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 94523 (Pleasant Hill, CA) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)ZIP 94523 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 0 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 94523 (Pleasant Hill, CA)
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • PLEASANT HILL, CA (ZIP 94523 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| PLEASANT HILLDENCE OPCO LLC DBA PLEASANT HILL POST ACUTE FREE PREVIEW (LOW RISK) | 1625 OAK PARK BLVD, PLEASANT HILL, CA 94523 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| JOHN MUIR PHYSICIAN NETWORK FREE PREVIEW (LOW RISK) | 91 GREGORY LN STE 15, PLEASANT HILL, CA 94523 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| CARLTON SENIOR LIVING POETS CORNER FREE PREVIEW (LOW RISK) | 540 PATTERSON BLVD, PLEASANT HILL, CA 94523 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| RITE AID #5915 FREE PREVIEW (LOW RISK) | 2140 CONTRA COSTA BLVD, PLEASANT HILL, CA 94523 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 94523 (Pleasant Hill, CA) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 02, 2026)How many EPA-tracked environmental sites are in ZIP code 94523 (Pleasant Hill, CA)?
ZIP code 94523 (Pleasant Hill, CA) contains 826 EPA-tracked facilities, of which 1 (0.1%) are classified in the High-Risk tier, 0 (0.0%) have active compliance violations, and 800 (96.9%) handle RCRA hazardous waste.
How does ZIP 94523 compare to Contra Costa County and California averages?
In ZIP 94523, 0.1% of regulated sites are rated High Risk, compared to 0.3% across Contra Costa County and 0.3% statewide in California.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 94523?
Geologic screening places ZIP 94523 in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 94523 (Pleasant Hill, CA) in a FEMA flood zone and what is the flood disaster history?
Contra Costa County has recorded 2 historical FEMA federal disaster declarations (2 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 94523 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 94523 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 94523 indicates a HIGH shrink-swell risk signal. Within ZIP 94523, federal registries track 2 SDWIS drinking water facilities, 20 Clean Water NPDES permits, and 12 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.