[#1, #2, #5, #6, #7, #8, #10, #20] Includes site acquisition/lease, 4-mile perimeter fencing, Class-6 doors and installation, first-floor reinforcements, engineered 34'×34' slab cover, basement access/modification works, one-time grid/utility upgrade elements and the capital component of SCP-2317 removal/construction.

[#30] Capital contingency (25% of pre-contingency one-time costs) to cover unforeseen capital/engineering overruns and anomaly-driven unknowns.

[#3, #9, #11, #12, #13, #22, #28, #29] Initial hardware and systems: perimeter lighting/cameras/sensors, heavy-lift equipment purchase, HVAC units, hardened communications/servers, vehicles & boats fleet, PPE setup, secure transport kits and one-time IT/hardware purchases.

[#27] One-time reserve fund for immediate post-breach response (temporary housing, emergency contractors, rentals).

[#19] Secure laboratory buildout and initial scientific instrumentation, PPE and sample storage for research into SCP-4231.

[#21] One-time costs to establish PR/cover story, fake permits, liaison payments and initial covert public works setup.

[#15, #16, #17, #18] Annual payroll and benefits for routine guards (24), armed response/QRT (≈8), containment technicians & maintenance staff (≈12), researchers/medical/site leadership (≈10).

[#30] Operational contingency (20% of base recurring annual costs) to absorb unexpected operational overruns and anomaly-driven expenses.

[#12, #19, #29] Secure communications/server hosting/licensing, ongoing research consumables and instrumentation service, IT security and archival hosting.

[#27] Sustained annual contingency reserve for rapid-response expenses and overtime after incidents.

[#21] Annual PR, legal, local liaison payments and ongoing covert public works to maintain the sinkhole/occupation cover.

[#20] Annual upkeep and additional security/containment costs associated with relocated SCP-2317 containment cell.

[#24] Electricity for lighting/HVAC/servers, water/sewage and hazardous waste disposal contracting.

[#4, #11, #25, #10] Ongoing maintenance of surveillance/sensors, HVAC servicing and filter replacement, routine structural repairs (doors/fence/slab) and generator/fuel system upkeep.

[#14, #28] Vehicle/boat fuel, maintenance and replacement reserve for patrols; secure transport certifications and container maintenance.

[#26] Regular breach drills, emergency exercises, external audits and continued education for staff.

[#23] Ongoing medical screening, psychological counseling, staff rotation and related support services.

[#22] PPE consumables, hazmat suit replacements, laundering and single-use disposables.