Magna General Plan Northrop Grumman Input December 4

Magna General Plan Northrop Grumman Input December 4, 2018

Reasons for Development Restrictions • Development restrictions are needed to protect the public from harm – Municipal Code and the County’s Hercules Area Master Plan (Nov, 1987) adopted based on recommendations of a Citizen’s Committee and independent consultant hired by the County (Jack Reed of Sandia National Laboratory) – Relevant operations today with possible consequences to areas north of Bacchus are the same as those performed when the County’s Hercules Area Master Plan was developed • Bacchus facility has not had any major high explosive events, but explosions have occurred at other locations that use the same materials Before 2 After Development restrictions protect public safety

Estimated Effects by Zone Average injuries to single subject per blast Bare skin 70 60 50 40 30 Clothed 20 10 0 +0. 5 psi zone 0. 3 to 0. 5 psi zone 0. 2 to 0. 3 psi zone Skin lacerations +0. 5 psi zone Skin penetrations 0. 3 to 0. 5 psi zone 0. 2 to 0. 3 psi zone Body wall penetrations Injuries to test subject (sheep) caused by exposure to shattering window pane. 3 Structural damage (replacement cost) Glass damage (probability of breakage) +0. 5 psi zone 23% (40% in dense placement) 85% 0. 3 to 0. 5 psi zone 3 -12% (20% in dense placement) 0. 2 to 0. 3 psi zone 1 -3% Wind velocity equivalent Average velocity of glass fragments 167 mph (Cat 5 hurricane) + 50 mph 3. 7 -17. 9% 130 -167 mph (Cat 4/5 hurricane) 15 -20 mph 0. 8 -3. 7% 106 -130 (Cat 2/3 hurricane) 11 -15 mph References for data on this page included in backup slides.

County/Magna Ordinance Hercules Area Master Plan Maps 4 Derived from County/Magna Hercules Area Master Plan Special Development Standards Areas (Figure 6) and Overpressure Bands (Figure 3).

County/Magna Ordinance Hercules Area Master Plan – Land Use Maps 5 Exceprt from County/Magna Hercules Area Master Plan - Land Use Plan (Figure 4)

Maintain Current Zoning Restrictions • Zoning compatible with Northrop Grumman operations should be maintained by Magna in overpressure zones – 0. 5 psi overpressure zone • Risk is greatest • Residential development should not be allowed “After months of study and hearing the study was completed and the planning commission adopted the following recommendations: 1. The 0. 5 overpressure line provided by Hercules be adopted as the limit of residential construction. No subdivisions or homes be allowed closer than 3470 feet from the possible origin of an accidental explosion. ” [Hercules Area Master Plan (Nov, 1987) page 2] – 0. 3 psi and 0. 2 psi overpressure zones • Risk of damage/injury also exists • High density development should be limited Residential development close to Bacchus facility presents potential hazards 6

Additional Zoning Recommendations • Zoning compatible with Northrop Grumman operations should be maintained by Magna in overpressure zones – Additional Recommendations • 0. 5 psi - Industrial/Agricultural zoning uses only - no residential, high frequency foot traffic (e. g. retail/shopping like), tall structures (no more than 2 floors above grade). • 0. 3 psi - no high density residential/retail, high frequency foot traffic, tall structures (no more than 3 floors above grade) (e. g. apartments, townhomes, hotels, schools, or retail) • 0. 2 psi – ordnance build restrictions remain in place High Density development close to Bacchus facility presents potential hazards 7

Key Programs at Bacchus Facility 100% of propulsion for submarinelaunched missiles U. S. Navy’s Trident II (D 5), currently in 30 th year of production, accounts for majority of nation’s nuclear deterrent Boosters to help launch satellites Support launches of U. S. Air Force national security satellites & commercial satellites Ground-Based Midcourse Defense Propulsion for missile interceptors and targets that validate missile defense International Space Station deliveries Propulsion for Antares launch vehicle used to launch supplies for NASA Launch Abort Motor to protect astronauts Our Launch Abort Motor will be used with NASA’s Orion spacecraft and Space Launch System, which will carry humans farther into the solar system than we have ever been 8

Northrop Grumman Impact in Utah • Annual Utah sales: Exceeds $1 B • Utah total employees: ~4, 870 (665 at Bacchus) • Utah annual payroll: $280 M • Annual Utah state and local taxes: $20. 5 M Magna and Bacchus Operations 665 employees 9 • Purchases from Utah suppliers: $165 M • Annual charitable contributions in Utah: >$1 M + countless volunteer hours www. northropgrumman. com

Summary • Bacchus facility is important to our company, our community, and our country • Development restrictions in the 0. 2, 0. 3, and 0. 5 psi overpressure zones were established 30 years ago to protect the public • The same safety risks exist today • Increased residential development and other high frequency uses will inhibit our ability to operate as we have for decades and as we plan to operate for decades to come Appropriate development restrictions will keep Magna residents safe and enable the Bacchus facility to continue supporting our national defense. 10

References 1) Structural Damage – ANSI S 2. 20 -1983 Figure 24 2) Glass Breakage – DDESB Blast Effects BEC V 63 3) Glass Fragment Velocity – Glass Fragment Hazard From Windows Broken by AIRBLAST – DNA IACRO-76 -634 4) Hurricane comparison -SS-0516 -86 -7493 t 5) Micro-meter Crack Response to Rock Blast Vibrations, Wind Gusts & Weather Effects C. H. Dowding 12