This brochure [pdf] from Aquafed (the international association of investor-owned utilities) provides 30 cases studies of how “private” (but regulated!) operators can improve water systems
Sao Paulo’s Sabesp is seeking 23 percent tariff increases to correct for inflation and falling revenues (less water to sell in a drought). The increase includes one percent or so for performance improvements. I’m not sure this is a wise move, given (a) disruptive shortages and (b) leaky networks. I left this comment on the story:
They’re going to have a hard time, politically, unless they can show they are improving operations (reducing leaks). It may be better for them to go to capital markets and payback loans with post-improvement tariff increases. Risky? Yes, but it forces them to succeed on their own money.