HISTORY --> 1950s thru 1960s 1970s thru 1980s 1990s 2000s
1970 - NTUA provides a financial return for the first time 1972 - Malcolm P. Dalton 1972 - branch office in Ft. Defiance 1973 - Leland R. Gardner 1979 - NTUA’s net earnings exceed $1 million 1979 - water/wastewater laboratory is EPA certified 1979 - NTUA used a helicopter to set power poles 1986 - Emma Roanhorse certified through NTUA's apprenticeship
1970
 NTUA provides a financial return for the first time, paying $98,853 to the Navajo Tribe out of net earnings for the year.
1985
 NTUA repays in full a $4.8 million, 15-year loan obtained from the Navajo Nation in 1970.
1971
 NTUA’s Employee Retirement Plan is implemented, and becomes the first such plan in Navajo Tribal government structure.
1986
 Emma Roanhorse becomes the first woman at NTUA to be certified as an Instrumentation Technician through NTUA’s Apprenticeship Program.
1972
 Malcolm P. Dalton, a Navajo, is selected as NTUA’s fourth General Manager, succeeding Eddy.  
NTUA establishes a branch office in Ft. Defiance.
1973
 Leland R. Gardner, a Navajo from Ganado, is elected chairman of the Management Board, succeeding H.L. Carson.  
1979
 NTUA’s net earnings exceed $1 million for the first time, registering $1,558,940.  
The Water and Wastewater Laboratory at NTUA’s headquarters is EPA certified in Bacterial Analysis.  
NTUA used a helicopter to set power poles atop Navajo Mountain for a line extension for radio and microwave equipment.