[#30] Long-term catastrophic remediation reserve (minimum contingency per analyst guidance).

[#1] Reinforced containment chamber construction with acid-resistant liners, integrated drains, overhead crane and heavy floor loading; midpoint estimate used.

[#15] One-time emergency response contingency fund / reserve for rapid mobilization of hazmat, evacuation and large-scale remediation.

[#2, #5, #6, #7, #11, #25, #26] Large-capacity HVAC installation (#2), corrosion-resistant robotics and manipulators (#5), waste-treatment tanks and processing (#6), initial groundwater monitoring hardware (#7), industrial autoclave/decon stations (#11), electronic protection/grounding hardware (#25), initial IT/hardened servers (#26) — summed mid-range equipment costs.

[#4] Sensor R&D and specialized TRE2 adaptation/validation, calibration equipment and initial instrument acquisition.

[#20] Purchase and installation of redundant diesel generators, UPS and corrosion-resistant enclosures (one-time capital).

[#16] Initial legal, permitting, cover-story setup and compliance costs (one-time setup/retainer establishment).

[#27] Initial community compensation / goodwill reserve for local impacts and mandated notifications.

[#8] Full-time containment team salaries (2 senior scientists, 4 scientists/engineers, 6 technicians, 8 security, 2 maintenance, 1 medic, 1 manager) including benefits and shift coverage; mid-range annual estimate used.

[#4, #7, #13, #24] Recurring calibration & maintenance of TRE2 sensors (~#4), ongoing groundwater/environment monitoring operations (~#7), specialist sample analysis and outsourced instrument time (#13), and annual containment-modelling/tabletop exercises (#24).

[#9] Armed guard contracts, training, perimeter security and rapid response readiness (annual cost).

[#18] Annual premiums or equivalent reserve contributions for property, liability and pollution coverage (specialty coverage assumptions).

[#12, #23] Hazardous-waste manifesting, transport and disposal (#12) plus routine heavy-lift logistics and occasional sealed transport moves (#23).

[#12] Recurring disposal/transport contractor costs for contaminated sludge and RCRA/Toxic wastes (annualized).

[#29] Annual debt service / amortization or opportunity cost on capital financing for construction/equipment.

[#14] Ongoing replacement of sacrificial liners, recoating, cathodic protection maintenance and replacement plates.

[#3] Continuous HVAC/negative-pressure energy costs, HEPA and chemical scrubber reagent and filter replacements.

[#28] Sub-awards, NDAs, vetted consultant payments and secure material transfer overhead.

[#10] PPE, decontamination consumables, suit replacement, filters and single-use containment materials.

[#21] Regular BSL-4/chemical-hazmat/TRE protocol training and recurrent drills.

[#22] Periodic full-chamber refurbishment amortization and scheduled maintenance (annualized estimate for liner/major work every 5–10 years).

[#26] Secure data archival, hardened server operations, backups and cybersecurity staffing/operations.

[#17] Annual legal/PR retainer, permit renewals and liaison for covert compliance and crisis readiness.

[#19] Occupational health program, biomonitoring for heavy metals/acid exposure and psychological care.

[#20] Fuel, maintenance and fuel-contract costs for diesel generators/UPS.

[#27] Ongoing outreach, small annual compensation and community health program costs.

[#25] Annual maintenance for Faraday cage, grounding and surge protection systems.