| system | initial cost ($ + hrs) / facility | annualized cost ($ + hrs) / facility | other resources | revenue | benefits |
| -------------------------- | --------------------------------- | ------------------------------------ | --------------------------- | ------- | ---------------------------------------------------------------------------------------------------------- |
| Community Bathing Facility | $450k + 2000hrs | $73.2k + 478hrs | 0.5 acre land, water rights | $30-40k | Social cohesion, health benefits, community gathering space, stress reduction, year-round outdoor activity |
#### Assumptions
- Located in Michigan climate (requires robust heating system)
- 4-5 pools of varying temperatures (cold plunge, lukewarm, warm, hot)
- Mix of indoor and outdoor spaces with natural landscaping
- Capacity for ~50-75 people at once (supporting 1000 person community plus visitors)
- Energy-efficient design with heat recovery systems
- Built using community labor for non-specialized tasks
- Some revenue from external visitors/memberships
#### Labor 400 Hours/year
| task | hours/year | notes |
| ------------------------------ | ---------- | --------------------------------- |
| Daily maintenance/cleaning | 180 | 30 min/day rotating crew |
| Water quality management | 104 | 2 hrs/week testing and adjustment |
| Mechanical systems maintenance | 52 | Weekly checks and maintenance |
| Deep cleaning/seasonal prep | 48 | Quarterly major cleaning |
| Landscaping/grounds | 16 | Seasonal maintenance |
#### Operating Costs $55k/year
| component | annual cost | justification |
| ---------------------- | ----------- | ----------------------------------------- |
| Energy (heating/pumps) | $30k | Based on Michigan climate, multiple pools |
| Water/chemicals | $15k | Regular replacement and treatment |
| Maintenance materials | $8k | Filters, parts, cleaning supplies |
| Testing supplies | $2k | Water quality monitoring |
#### Initial Costs $450k + 2000 hrs / facility -> $18.2k + 78 hrs / facility
| Component | Initial Cost ($ + hrs) | Lifespan (Years) | Amortized Cost/Year | Justification |
| ------------------ | ---------------------- | ---------------- | ------------------- | ------------------------------------ |
| Pool construction | $200k + 800hrs | 30 | $6.7k + 27hrs | Multiple concrete pools, plumbing |
| Building/enclosure | $120k + 600hrs | 30 | $4k + 20hrs | Partial indoor space, changing rooms |
| Mechanical systems | $80k + 200hrs | 15 | $5.3k + 13hrs | Heaters, pumps, filters |
| Landscaping | $30k + 300hrs | 20 | $1.5k + 15hrs | Natural integration, paths |
| Design/engineering | $20k + 100hrs | 30 | $0.7k + 3hrs | Professional consultation |