Must Utah municipalities charge residents and nonresidents the same water rates? Platt v. Town of Torrey Explained

In Platt v. Town of Torrey, the Utah Supreme Court addressed a question of first impression: whether municipalities must charge identical water rates to residents and nonresidents. The court established important precedent requiring reasonableness rather than identical treatment in municipal utility pricing.

Background and Facts

Duane Platt and Donna Sall owned property just outside Torrey’s city limits and sought water service from the town’s municipal system. After obtaining a residential connection, they later requested commercial service for their planned RV park. Torrey’s rate schedule charged nonresidents higher connection fees and user rates than residents. When the town denied their commercial application and later shut off their water for commercial use through the residential connection, plaintiffs sued, claiming the differential rate structure constituted unlawful discrimination.

Key Legal Issues

The court addressed whether Utah law requires municipalities to charge identical rates to residents and nonresidents who receive water service, and what standard of review applies to challenges of municipal rate schedules. Plaintiffs argued that once a municipality elects to serve nonresidents, it cannot discriminate and must treat all users equally.

Court’s Analysis and Holding

The Supreme Court held that municipalities must act reasonably when setting rates for nonresidents but need not charge identical rates if legitimate justifications exist for the differential. The court extended the constitutional requirement that residents receive service at “reasonable charges” to nonresidents, noting they have less political recourse than residents. Valid justifications for higher nonresident rates include cost differences, risk allocation disparities, and resident contributions to system construction or operation. The court remanded for factual findings on whether Torrey’s rate differential was justified and whether a contractual agreement required equal treatment.

Practice Implications

This decision establishes that rate schedules are presumptively reasonable, placing the burden on challengers to prove unreasonableness. Trial courts should not require municipalities to justify their rates until plaintiffs establish a prima facie case of invalidity. The decision provides guidance for both municipalities setting rates and practitioners challenging them, emphasizing that reasonableness rather than mathematical equality governs municipal utility pricing.