4 14070006 Lower Lake Powell
 4 14070007 Paria
 4 14080105 Middle San Juan
 4 14080106 Chaco
 4 14080201 Lower San Juan-Four Corners
 4 14080204 Chinle
 4 14080205 Lower San Juan
 4 15010001 Lower Colorado-Marble Canyon
 4 15010002 Grand Canyon
 4 15010003 Kanab
 4 15010004 Havasu Canyon
 4 15010005 Lake Mead
 4 15010006 Grand Wash
 4 15010007 Hualapai Wash
 4 15010009 Fort Pierce Wash
 4 15010010 Lower Virgin
 4 15010014 Detrital Wash
 4 15020001 Little Colorado Headwaters
 4 15020002 Upper Litter Colorado
 4 15020003 Carrizo Wash
 4 15020004 Zuni
 4 15020005 Silver
 4 15020006 Upper Puerco
 4 15020007 Lower Puerco
 4 15020008 Middle Little Colorado
 4 15020009 Leroux Wash
 4 15020010 Chevelon Canyon
 4 15020011 Cottonwood Wash
 4 15020012 Corn-Oraibi
 4 15020013 Polacca Wash
 4 15020014 Jadito Wash
 4 15020015 Canyon Diablo
 4 15020016 Lower Little Colorado
 4 15020017 Dinnebito Wash
 4 15020018 Moenkopi Wash
 4 15030101 Havasu-Mohave Lake
 4 15030103 Sacramento Wash
 4 15030104 Imperial Reservoir
 4 15030105 Bouse Wash
 4 15030106 Tyson Wash
 4 15030107 Lower Colorado
 4 15030108 Yuma Desert
 4 15030201 Big Sandy
 4 15030202 Burro
 4 15030203 Santa Maria
 4 15030204 Bill Williams
 4 15040002 Upper Gila-Mangas
 4 15040003 Animas Valley
 4 15040004 San Francisco
 4 15040005 Upper Gila-San Carlos Reservoir
 4 15040006 San Simon
 4 15040007 San Carlos
 4 15050100 Middle Gila
 4 15050201 Willcox Playa
 4 15050202 Upper San Pedro
 4 15050203 Lower San Pedro
 4 15050301 Upper Santa Cruz
 4 15050302 Rillito
 4 15050303 Lower Santa Cruz
 4 15050304 Brawley Wash
 4 15050305 Aguirre Valley
 4 15050306 Santa Rosa Wash
 4 15060101 Black
 4 15060102 White
 4 15060103 Upper Salt
 4 15060104 Carrizo
 4 15060105 Tonto
 4 15060106 Lower Salt
 4 15060201 Big Chino-Williamson Valley
 4 15060202 Upper Verde
 4 15060203 Lower Verde
 4 15070101 Lower Gila-Painted Rock Reservoir
 4 15070102 Agua Fria
 4 15070103 Hassayampa
 4 15070104 Centennial Wash
 4 15070201 Lower Gila
 4 15070202 Tenmile Wash
 4 15070203 San Cristobal Wash
 4 15080101 San Simon Wash
 4 15080102 Rio Sonoyta
 4 15080103 Tule Desert
 4 15080200 Rio De La Concepcion
 4 15080301 Whitewater Draw
 4 15080302 San Bernardino Valley