NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY
Parent Company: NORTHROP GRUMMAN CORP
9160 N HWY 83, PROMONTORY, Utah 84307
Pollution Risk
26Based on 3 TRI facilities in zip code 84307
Water Quality
8676 violations recorded
Air Quality
39County-level EPA AQS data for BOX ELDER
Facility Information
Water Quality in 84307
Total Violations
76
Health Violations
3
Contaminants Found
11
Water Safety Score
86/100
Contaminants Detected:
Should You Be Concerned About NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY?
NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORYis registered in the EPA's Toxic Release Inventory (TRI). This means the facility reports handling, releasing, or transferring toxic chemicals as part of its operations. The area's environmental safety score is 51/100 — moderate, suggesting some cumulative environmental burden from industrial activity in the area.
Water quality in zip code 84307 is good (86/100), suggesting that despite the TRI facility, drinking water hasn't been significantly impacted.
This zip code has 3 total TRI facilities, which contributes to the area's pollution profile.
What you can do: Check your home's water quality with an annual test kit, monitor local air quality alerts, and review the full Utah pollution report for broader context. NORTHROP GRUMMAN CORP operates this facility — check if they have a public environmental responsibility report.
Other TRI Facilities in 84307 (2)
Health Considerations for Residents Near NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY
Living near a Toxic Release Inventory (TRI) facility in PROMONTORY, Utah (84307) means potential exposure to industrial pollutants through air, water, and soil. While not every facility creates immediate health risks, long-term proximity warrants awareness and proactive steps.
Water Testing
Even with acceptable municipal water scores, homes near industrial sites should test annually for contaminants that may leach through groundwater. This is especially important for homes built before 1990 or those on well water in the 84307 area. Testing kits are available through your county health department or certified labs.
Air Quality Monitoring
Air quality in this area scores 39/100 — below average. Monitor daily AQI (Air Quality Index) at airnow.gov, particularly on hot, stagnant days when ground-level pollutants concentrate. If you notice unusual odors or visible emissions from NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY, report them to Utah's environmental agency.
When to Consult a Doctor
Speak with your physician if you experience persistent respiratory symptoms (chronic cough, wheezing, shortness of breath), unexplained headaches, skin irritation, or unusual fatigue — particularly if these worsen when you're at home. Mention your proximity to a TRI facility so they can order appropriate screening. Vulnerable populations — children, elderly, pregnant women, and those with asthma — should be especially vigilant.
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Data sources: EPA Toxic Release Inventory (TRI), EPA Safe Drinking Water Information System (SDWIS), EPA Air Quality System (AQS). Facility ID: 84302MRTNT9160N. Last updated: August 2026.