| Downtown Mesa |
Original 1878 townsite, built out through the 1950s |
City Zone, about 12 gpg |
Galvanized supply lines, plaster, flat commercial roofs |
| West Mesa |
Post-war tract housing, 1940s-1970s |
City Zone, about 12 gpg |
Under-slab supply leaks and old cooler roof penetrations |
| Lehi |
Settled 1877, annexed into Mesa 1970 |
City Zone, about 12 gpg |
Irrigation overflow and absorbent early masonry |
| The Groves |
1950s-1970s on former groves, custom builds from the 1980s |
Near the Eastern Canal zone boundary, 12-16 gpg |
Mixed-era supply lines and mature root intrusion |
| Dobson Ranch |
Master-planned, built 1973-1999, nearly 5,000 homes |
City Zone, about 12 gpg |
Polybutylene-era supply lines and same-age water heaters |
| Fiesta District |
1970s-1980s commercial, condo and apartment stock |
City Zone, about 12 gpg |
Stacked plumbing, flat roof drains, empty overnight buildings |
| Alta Mesa |
Late 1980s-1990s golf community |
Eastern Zone, about 16 gpg |
Polybutylene fittings and second-generation water heaters |
| Superstition Springs |
Late 1980s-1990s residential plus commercial corridor |
Eastern Zone, about 16 gpg |
Polybutylene fittings, flat roof drains, condensate lines |
| Parkwood Ranch |
Built from 1998 through the 2000s |
Eastern Zone, about 16 gpg |
CPVC and PEX fittings, angle stops, appliance connectors |
| Red Mountain Ranch |
Master-planned, built from 1988 |
Eastern Zone, about 16 gpg |
Polybutylene fittings and slope-driven storm runoff |
| Las Sendas |
Master-planned, developed from 1995 |
Eastern Zone, about 16 gpg |
Hillside sheet flow and multi-storey water travel |
| Mountain Bridge |
Gated master-plan, built 2010 to present |
Eastern Zone, about 16 gpg |
Uniform fittings, valves and connectors reaching end of life together |
| Eastmark |
First homes June 2013, still building |
Eastern Zone, about 16 gpg |
Appliance connections and installation defects |
| Sunland Village |
55+ community, built 1974-1984, 2,685 homes |
Eastern Zone, about 16 gpg |
Unattended failures during summer vacancy |
| Sunland Village East |
55+ community, built from the mid-1980s, 2,437 homes |
Eastern Zone, about 16 gpg |
Multi-unit escalation and polybutylene-era fittings |