ZIP 20689 (Sunderland, MD) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 20689 in Sunderland, Maryland (Calvert County) has 17 EPA-tracked facilities, including 1 High-Risk sites (5.9%), 1 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 20689 are screened across 2 historical Calvert County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (9), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 20689 (Sunderland, MD) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 20689 (Sunderland, MD) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 20689 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 1 High-Risk and 1 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 20689 (Sunderland, MD)
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 High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • ST MARY'S CITY, MD (ZIP 20689 Sector) | HIGH (64/100) | Significant Violation (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • , MD (ZIP 20689 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • SUNDERLAND, MD (ZIP 20689 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • , MD (ZIP 20689 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • SUNDERLAND, MD (ZIP 20689 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • SUNDERLAND, MD (ZIP 20689 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| CALIBER COLLISION CENTERS - SUNDERLAND 3014 FREE PREVIEW (LOW RISK) | RTE 2, SUNDERLAND, MD 20689 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| B-M AUTO BODY FREE PREVIEW (LOW RISK) | 95 DALRYMPLE RD, SUNDERLAND, MD 20689 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| MT HOPE COMMUNITY CENTER FREE PREVIEW (LOW RISK) | 104 PUSHAW STATION RD, SUNDERLAND, MD 20689 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| RUSSELL, MORGAN E INC FREE PREVIEW (LOW RISK) | RT 2 & 4, SUNDERLAND, MD 20689 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • SUNDERLAND, MD (ZIP 20689 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SUNDERLAND, MD (ZIP 20689 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 20689 (Sunderland, MD) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 20689 (Sunderland, MD)?
ZIP code 20689 (Sunderland, MD) contains 17 EPA-tracked facilities, of which 1 (5.9%) are classified in the High-Risk tier, 1 (5.9%) have active compliance violations, and 5 (29.4%) handle RCRA hazardous waste.
How does ZIP 20689 compare to Calvert County and Maryland averages?
In ZIP 20689, 5.9% of regulated sites are rated High Risk, compared to 3.6% across Calvert County and 1.8% statewide in Maryland.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 20689?
Geologic screening places ZIP 20689 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 20689 (Sunderland, MD) in a FEMA flood zone and what is the flood disaster history?
Calvert County has recorded 2 historical FEMA federal disaster declarations (1 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 20689 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 20689 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 20689 indicates a LOW shrink-swell risk signal. Within ZIP 20689, federal registries track 8 SDWIS drinking water facilities, 1 Clean Water NPDES permits, and 1 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.