| 91st Avenue WWTP | Tolleson | 71.73 |
| 23rd Avenue Wastewater Treatment Plant | Phoenix | 35.73 |
| Pima County - Ina Road WWTP | Tucson | 30.54 |
| Agua Nueva WRF | Tucson | 5.68 |
| Casa Grande WRF | Casa Grande | 4.55 |
| Northwest Wrp | Mesa | 3.39 |
| Goodyear, City Of - 157th Ave WWTP | Goodyear | 2.8 |
| Town Of Prescott Valley - WWTP | Prescott Valley | 2.69 |
| Northwest Water Reclamation Plant | Mesa | 2.47 |
| Tucson Airport Remediation Project - Co-Mingled Plume | Tucson | 2.47 |
| Town Of Buckeye - Sundance Wwrf | Buckeye | 1.75 |
| Buckeye WWTP | Buckeye | 1.56 |
| Cottonwood WWTF | Cottonwood | 1 |
| City Of Safford - Gila Resources Wrp | Safford | 0.81 |
| American Gulch Wastewater Treatment Plant | Payson | 0.78 |
| City Of Somerton - WWTP | Somerton | 0.63 |
| Kayenta WWTF | Kayenta | 0.57 |
| Joint Venture WWTF | Parker | 0.54 |
| Chinle WWTF | Chinle | 0.46 |
| City Of Phoenix - Rio Salado Habitat Restoration | Phoenix | 0.45 |
| Tuba City WWTP | Tuba City | 0.44 |
| Pinal Creek WWTP | Globe | 0.38 |
| Window Rock Wastewater Treatment Facility | Fort Defiance | 0.37 |
| City Of Kingman - Downtown Pond | Kingman | 0.22 |
| Yuma Main Street Treatment Plant | Yuma | 0.22 |
| Town Of Gila Bend - WWTP | Gila Bend | 0.17 |
| Quartzsite, Town Of - WWTP | Quartzsite | 0.15 |
| Town Of Superior Wastewater Treatment Plant (wwtp) | Superior | 0.13 |
| City Of Peoria | Peoria | 0.11 |
| Tusayan Sanitary District | Grand Canyon | 0.1 |
| Town Of Kearny Wastewater Reclamation Facility | Kearny | 0.1 |
| Festival Ranch WRF | Buckeye | 0.09 |
| Rio De Flag WWTP | Flagstaff | 0.05 |
| City Of Tombstone - WWTP | Tombstone | 0.04 |
| Town Of Patagonia - WWTP | Patagonia | 0.04 |
| City Of Mesa - Greenfield Water Reclamation Plant | Gilbert | 0.03 |
| Winkelman WWTP | Winkelman | 0.02 |
| City Of Goodyear - Rainbow Valley WRF | Goodyear | 0.01 |
| Az State Pks Patagonia Lake | | 0.01 |
| Apache Junction WWTP | Apache Junction | — |
| Benson, City Of - WWTF | Benson | — |
| Bullhead City, City Of - Section 10 WWTP | Bullhead City | — |
| City Of Goodyear - Corgett Wash WRF | Goodyear | — |
| City Of Williams - WWTP | Williams | — |
| Painted Mesa Water Reclamation Facility | Holbrook | — |
| Pima County - Wwmd - Green Valley Bnro - WWTP | Sahuarita | — |
| Tolleson WWTP | Tolleson | — |
| Town Of Cave Creek - WRF | Cave Creek | — |
| Town Of Florence WWTP | Florence | — |
| Town Of Marana Water Reclamation Facility | Marana | — |
