[#1, #8, #11, #12, #29] Demolition planning/execution (major structural work + permitting) and infrastructure: demolition & engineering studies (~$13M allocated), containment vault build (~$250k), sensor/buoy installation (~$300k), and initial public-safety markings (~$50k).

[#28] Large contingency reserve held for escalation/worst-case mitigation / capital-project buildouts if the compound proves more hazardous.

[#7, #10, #15, #17, #27] Hazardous-materials lab upgrade and research start-up: lab buildout & certification (~$1.2M), initial chemical/physical analysis program (~$150k), specialized experiment rigs (~$400k), initial training program (~$100k), and initial data-analysis project (~$100k) (some items combined into this research/lab setup budget).

[#13] Initial environmental remediation budget for moderate contamination scenarios (dredging, neutralization, sediment removal).

[#5, #19, #20, #9] Major hardware purchases: ROV purchase (~$1,000,000), generators/UPS (~$125,000), secure-communications setup (~$100,000), and an initial secure shipping container (~$25,000).

[#23] One-time reserve fund to cover immediate large claims / liabilities at program startup.

[#6] Typical controlled salvage/recovery campaign (single-campaign estimate; heavy campaigns would be larger).

[#22] Up-front public-affairs, negotiated access payments and initial legal containment actions for a sensitive announcement/closure.

[#14] Initial hazardous-waste disposal and decontamination costs for contaminated equipment and waste streams.

[#21] Forensic structural analyses and post-incident investigations (per major investigative episode).

[#3] One-time legal/permit fees for maritime closure, shipping-lane permissions and contractor agreements.

[#9] Initial secure/armored transport of recovered samples to off-site labs (one representative move).

[#30] Small one-time line items (permits, customs, berth fees) budgeted as an initial contingency.

[#1, #9] Continuous maritime surveillance operations: patrol-vessel charter/operation (major driver ~ $4.0M/yr) plus routine drone/air sorties (~$150k/yr) and routine secure sample transfers.

[#2, #16] On-site salaries, benefits and hazard pay for core team: research scientists, security officers, technicians/divers/ROV pilots, administrative and site manager positions (annual payroll & benefits).

[#3] Contracted naval/coast-guard enforcement or private maritime-security contracts to formally enforce the exclusion zone (monthly contract alternative to in-kind government support).

[#23, #28] Periodic replenishment of insurance/contingency reserves to prepare for multi-year liabilities or escalation.

[#10, #11, #15, #27] Ongoing analysis and monitoring: follow-up analytical programs, water/biota sampling and lab analysis, seafloor sensor upkeep, instrument ops for specialized rigs, and periodic modeling/updates.

[#4] Readiness retainer for rapid MTF deployment and maintaining response capability; deployment costs handled as incremental scenario costs when used.

[#5] Annual ROV maintenance/crew costs and saturation-diving team standby / routine mobilizations.

[#14, #18, #29, #30] PPE, consumables, routine hazardous-waste disposals during operations, maintenance of markers/signage, and small recurring permit/port fees.

[#8, #19, #20] Vault climate-control power & monitoring, generator maintenance/fuel, and communications service contracts.

[#25] Insurance premiums and scheduled maintenance for patrol vessels, ROVs, and salvage craft (annual).

[#24] Secure record storage/archiving and psychological support programs for exposed personnel.

[#22, #3] Ongoing public-affairs management, legal retainer, and recurring compensation/agreements with local stakeholders.

[#17] Annual refresher training, certifications, and drills for diving, HAZMAT handling, and ROV operations.

[#26] Periodic inspection, repackaging and limited replacement of containment media (ampoule lifecycle costs).

[#30] Recurring small line items: port fees, customs, berth charges and other routine administrative fees.