98 illustrative project concepts across 34 states, 58 in the data center sector and 40 across industry, consumer products and the public sector. Click any pin or HUC-4 watershed for the 10-year profile, the challenge set and the VWBA 2.0 D-6 multiplier for that reach. These are screening concepts, not contracted projects.
Passive PES · 1.5 MGD/acre · 85% uptime · 10-year term
| System | Capex | O&M/yr | 10-yr total | $/kgal treated |
| ½-acre 0.75 MGD | $2.50M | $100K | $3.65M | $1.57 |
| ¾-acre 1.125 MGD | $3.00M | $125K | $4.40M | $1.26 |
| 1-acre 1.5 MGD | $3.50M | $150K | $5.15M | $1.11 |
| 1.5-acre 2.25 MGD | $4.50M | $200K | $6.65M | $0.95 |
| 2-acre 3.0 MGD | $5.50M | $250K | $8.15M | $0.88 |
| 3-acre 4.5 MGD | $7.50M | $300K | $10.65M | $0.76 |
Every 10-year total includes a $150,000 water-fronting property purchase on top of system capex and O&M (SWIG project pricing, August 11, 2026; that schedule carries the 1.5-acre line and the other sizes are SWIG standard pricing). The $/kgal column is the 10-year total divided by the water actually put through the system over the 10-year term at 85% uptime (232.7, 349.1, 465.4, 698.1, 930.8 and 1,396.1 MGY), so it is the unit cost of treatment and falls as the system gets larger. The credited VWBA 2.0 cost per thousand gallons is a different number and is not a portfolio constant: it depends on each reach's own challenge set and fractions improved, so it is stated per project on the pin card and computed in full in the project presentation, issued on request.
Treatment System method, WQBA Appendix D-4 · pounds per year at the bracketed influents
| System | Total N | Total P | TSS | E. coli |
| ½-acre 232.7 MGY | 1,553–3,882 | 202–388 | 40,567–78,368 | 0.9–2.8 trillion organisms/yr |
| ¾-acre 349.1 MGY | 2,329–5,823 | 303–582 | 60,850–117,552 | 1.3–4.2 trillion organisms/yr |
| 1-acre 465.4 MGY | 3,106–7,764 | 404–776 | 81,134–156,736 | 1.8–5.6 trillion organisms/yr |
| 1.5-acre 698.1 MGY | 4,658–11,646 | 606–1,165 | 121,701–235,104 | 2.7–8.5 trillion organisms/yr |
| 2-acre 930.8 MGY | 6,211–15,528 | 807–1,553 | 162,268–313,472 | 3.6–11.3 trillion organisms/yr |
| 3-acre 1,396.1 MGY | 9,317–23,292 | 1,211–2,329 | 243,402–470,208 | 5.3–16.9 trillion organisms/yr |
WQBA carries no challenge count, no fraction improved and no multiplier, so these loads scale straight with treated volume and do not change with the reach's challenge set. They are computed from the same bracketed influents used in each presentation: total nitrogen 4 to 10 mg/L and total phosphorus 0.13 to 0.25 mg/L (USGS 2010), suspended solids 22.0 to 42.5 mg/L on SWIG US project reaches, and E. coli 126 to 400 per 100 mL, at SWIG removal rates. E. coli is stated in trillions of organisms per year (tn). A pollutant only counts on a reach where it is a credited challenge, so read these against the challenge set on the pin. These are planning expectations, not commitments; Phase 1 baseline sampling replaces every bracket with a site measurement.