PUBLIC DATA SOURCE: U.S. EPA ECHO, FRS, RCRA, TRI & FEMA NFHL 3,230,651 Regulated Sites • All 50 States • Data as of November 01, 2026
Home › States › District of Columbia › Washington › ZIP 20007 › US NAVAL OBSERVATORY
SOURCE: U.S. EPA ECHO & FRS PUBLIC RECORD • REGISTRY ID #110000787293 RISK TIER: LOW (SCORE 25/100)

US NAVAL OBSERVATORY — Public EPA Compliance & Environmental Record

Street Address: 3450 MASSACHUSETTS AVE NW, WASHINGTON, DC 20007 (District Of Columbia County) • Coordinates: (38.92454, -77.06751)

Compliance Status
No Violation Identified
Quarters in Non-Compliance
0 of 12 Quarters
Inspections / Formal Actions
0 Insp / 0 Actions
Federal Penalties Assessed
$0.00
Regulated Environmental Programs: Military / Defense / Ordnance Site • RCRA Hazardous Waste • Clean Air Act • Clean Water NPDES • Impaired Water Discharge • Last Inspection Date: 06/30/2015
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Other EPA-Regulated Sites Within 1.0 Mile of US NAVAL OBSERVATORY

Adjacent high-risk facility names and exact street numbers are redacted (2 preview samples unlocked).

Unlock All Nearby Sites Within 1.0 Mile →
Facility Name / Hazard Type Sector Location (Street Redacted) Distance Risk Score (0–100) Compliance Status
🔒 Locked High-Risk EPA Enforcement Record #1 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20008 Sector) 0.69 mi (3,621 ft) HIGH (66/100) Significant Violation • Unlock →
USNO BOOTHS, GATES, AND SECURED PARKING FREE PREVIEW (LOW RISK) 3450 MASSACHUSETTS AVE NW, WASHINGTON 0.00 mi (0 ft) LOW (17/100) No Violation Identified
EMBASSY OF BELGIUM FREE PREVIEW (LOW RISK) 3330 GARFIELD STREET NW, WASHINGTON 0.22 mi (1,182 ft) LOW (16/100) No Violation Identified
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20007 Sector) 0.31 mi (1,661 ft) LOW (16/100) No Violation Identified • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20007 Sector) 0.34 mi (1,810 ft) LOW (16/100) No Violation Identified • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20008 Sector) 0.40 mi (2,114 ft) LOW (17/100) No Violation Identified • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20007 Sector) 0.37 mi (1,941 ft) LOW (16/100) No Violation Identified • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20007 Sector) 0.38 mi (1,985 ft) LOW (16/100) No Violation Identified • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20008 Sector) 0.38 mi (2,022 ft) LOW (15/100) No Violation Identified • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • WASHINGTON (ZIP 20007 Sector) 0.51 mi (2,666 ft) LOW (17/100) No Violation Identified • Unlock →
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