Technical efficiency of rural water utilities is determined using fron
tier production functions. An indirect production function is develope
d to model the two-step production process of a local government-contr
olled firm. Data from 26 rural Nevada water utilities are used to esti
mate inefficiency in terms of firm-specific variables. A multistep est
imation procedure is used instead of single-step maximum likelihood es
timation. Model selection tests are used to choose the best model. Pri
vately owned utilities are most efficient; self-governing water distri
cts are the least efficient. Municipal governments operate the most an
d least efficient utilities.