Nairobi County
Athi Series aquifers, WRA 100m spacing vs Eastleigh's 30m clusters, Kilimani high-rises, 250–300m depth, 10″/8″ commercial builds & Donholm case study.
More counties coming in Batch 1: Kiambu, Kajiado, Machakos, Nakuru, Uasin Gishu, Embu, Laikipia — two per week.