LEGAL ADVERTISEMENT
Fort Defiance, Apache County
Arizona
NAVAJO TRIBAL UTILITY AUTHORITY
REQUEST FOR PROPOSAL
WASTEWATER TREATMENT PLANT (WWTP)
SITE IMPROVEMENTS
Navajo Tribal Utility Authority (NTUA) hereby requests proposals form certified contractors to
complete improvements to help mitigate erosion from stormwater runoffs at the Tuba City
Wastewater Treatment Facility (WWTP) in Tuba City, AZ. The Treatment Facility is located on
the Navajo Indian Reservation and is owned and operated by the NTUA.
Instructions and Scope of Work can be obtained from Andrea Hale, Contract Administrator, at
(928) 729-6249 or by email andreah@ntua.com or at NTUA Purchasing Department, North
Navajo Route 12, Fort Defiance, Arizona.
Proposal and Cost shall each be submitted (Hand carried) in separate sealed envelopes clearly
marked: “DO NOT OPEN – TUBA CITY WWTP SITE IMPROVEMENTS (PROPOSAL)”
and for the Cost “DO NOT OPEN – TUBA CITY WWTP SITE IMPROVEMENTS (COST)”
and received by March 23, 2026 at 4:30 p.m. (DST). Electronic emailed bids will be accepted and
should be emailed to Andrea Hale at andreah@ntua.com. No FedEx, UPS, and Us Mail bids will
be accepted. No late, facsimiled proposals will be accepted.
To ensure delivery by the due date and time, all proposals should be addressed to:
PHYSICAL ADDRESS:
Navajo Tribal Utility Authority
ATTN: Andrea Hale, Purchasing Department
North Navajo Route 12
Fort Defiance, Arizona 86504
Preference will be applied in accordance with the Navajo Business and Procurement Act (12
N.N.C. § 1501 et seq.); the Navajo Nation Procurement Act (12 N.N.C. § 301 et seq.); the Navajo
Nation Business Opportunity Act (5 N.N.C. § 201 et seq.) and other applicable statutory and
regulatory requirements. Proposers must submit evidence of their Preference Priority Certification
if applicable.