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Committee hears Sabey pledge of 'dry‑first' cooling; sewer permits and sampling required
Summary
Sabey told staff its design is 'dry‑first' and uses adiabatic misting only above ~80°F; Butte‑Silver Bow pretreatment staff said industrial wastewater would require permits, separation of sanitary and industrial lines, and regular sampling — details on chemical composition and off‑site treatment remain outstanding.
The Sabey data‑center team and county staff told an ad hoc committee that the project’s cooling concept is designed to minimize water and wastewater impacts, but that firm permitting, sampling and off‑site treatment plans are required before any industrial discharge would be allowed.
Bob Morris read a statement submitted by Sabey that described a closed‑loop liquid cooling system for IT equipment, dry air heat exchangers and adiabatic misting enabled only above about 80°F. The statement said the project includes "a covered thermal storage" to buffer loads and reuse brief adiabatic drawdown; it…
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