Project Overview

The U.S. Department of the Interior, Bureau of Reclamation, Albuquerque Area Office, has prepared an Environmental Impact Statement (EIS) to analyze the environmental impacts of constructing a regional water system (RWS) and connected actions in the Pojoaque Basin in north-central New Mexico. The RWS will deliver potable water to Pueblo and County residents in the Pojoaque Basin by collecting and treating water from the Rio Grande. The water will then be transmitted, stored, and prepared for delivery to local residents, as authorized by the Aamodt Litigation Settlement Act (Public Law 111-291, Title VI; 124 Stat. 3065) (Settlement Act), which was signed on December 8, 2010.  

Upon completion of all conditions precedent to settlement enforcement, as detailed in the Settlement Act; publication of the required Statement of Findings; and issuance of a Record of Decision by the Secretary of the Interior; Reclamation will begin construction of the RWS. After construction is complete, titles to the infrastructure and facilities will be transferred to the Pueblos, Santa Fe County, and a Regional Water Authority. Upon title transfer, these entities will be responsible for the ongoing operation and maintenance of the RWS. 

Project Background 
Litigation concerning claims to the scarce water resources of the Pojoaque Basin began in 1966, in the case State of New Mexico ex rel. State Engineer v. Aamodt (No. 66cv6639 MV/LCS [District of New Mexico], Aamodt adjudication). The purpose of the litigation was to determine the nature and extent of the claims to water rights in the Pojoaque Basin. In August 2000, the federal court ordered confidential mediation over settlement of the Pueblo claims. In May 2006, the non-federal parties to the case signed the Settlement Agreement; these were the Pueblo de San Ildefonso, Pueblo of Nambé, Pueblo of Pojoaque, and Pueblo of Tesuque (Settlement Pueblos); the City of Santa Fe; Santa Fe County; the State of New Mexico; and other individual defendants. The Settlement Agreement allowed for up to 4,000 afy of water to be diverted from the Rio Grande, and it contemplated constructing the RWS; 2,500 afy of water would be allocated to the four Settlement Pueblos, and up to 1,500 afy would be allocated to Santa Fe County. 

The technical details for the RWS described in the Settlement Agreement were set out in a 2008 engineering report prepared by Hurlbut, Kersich, and McCullough Engineering, Inc. (HKM 2008). The Settlement Act, signed in 2010, accomplished the following:
  • Authorized the U.S., through the Secretary of the Interior, to sign the Settlement Agreement, as conformed to the Settlement Act
  • Required Reclamation to construct an RWS
The conformed Settlement Agreement (dated April 2012), was signed by the Settlement Pueblos, Santa Fe County, the City of Santa Fe, the State of New Mexico, and the Secretary of the Interior on March 14, 2013. It includes revisions to conform to the Settlement Act. County residents of the Pojoaque Basin have the option of signing onto the Settlement Agreement under one of three options relating to their domestic well. Options include connecting to the RWS now, continuing use of their well at a reduced rate and connecting to the RWS upon transfer of their property, or not connecting to the RWS and reducing use of their well. 

The Pojoaque Basin is defined in Section 602(13) of the Settlement Act and encompasses about 147,300 acres. The Settlement Act defines the basin as the geographic area limited by a surface water divide, within which rainfall and runoff flow into arroyos, drainages, and named tributaries; these eventually drain into either Rio Pojoaque, the two unnamed arroyos immediately south of Rio Pojoaque, or the two arroyos (including Arroyo Alamo) that are immediately north of the confluence of the Rio Pojoaque and the Rio Grande. The Pojoaque Basin includes the San Ildefonso Eastern Reservation, which is recognized by Section 8 of Public Law 87-231 (75 Stat. 505).

Project Overview 
Section 611(a) of the Settlement Act authorizes Reclamation to plan, design, and construct an RWS, consisting of water-diversion facilities from the Rio Grande and water treatment on the Pueblo de San Ildefonso. Moreover, it authorizes any treatment, transmission, storage, and distribution facilities and wellfields for Santa Fe County’s distribution system and Pueblo water facilities that are necessary to distribute up to 4,000 afy of water annually to customers in the Pojoaque Basin (Settlement Act, Section 611[a][2][B]). 

The project includes the following actions:
  • Substantially completing construction of the RWS by June 30, 2024 (Settlement Act, Section 623[e])
  • Bringing portions of the RWS into operation as they are constructed
  • Operating and maintaining the RWS until construction is substantially complete
  • Transferring title to all RWS facilities and land interests to the Settlement Pueblos, Santa Fe County, and the Regional Water Authority, upon construction completion, in accordance with Section 611(h) of the Settlement Act
  • Contracting with the Settlement Pueblos for 1,079 afy of San Juan-Chama Project water (Settlement Act, Section 613[a][2])
The EIS also analyzes alternatives for the proposed connected actions of the Rio Pojoaque irrigation improvement project on the Pueblo de San Ildefonso and the Rio Tesuque channel modification project on the Pueblo of Tesuque. The funding for these actions is authorized under Section 611(f)(1) and 617(a) of the Settlement Act. The Pueblo de San Ildefonso is also proposing to construct a wastewater system and future water-related infrastructure projects. Funding for these actions is made available under Section 617(c)(1)(A)(i) of the Settlement Act. While these actions are not directly part of the RWS, they are being analyzed in the EIS as connected actions authorized by Section 615(d)(7)(A)(ii) of the Settlement Act. This provision authorizes the expenditure of funds appropriated under Section 617(c)(1)(A)(i) of the Settlement Act prior to substantial completion of the RWS “for any activity that is more cost-effective when implemented in conjunction with the construction of the [RWS], as determined by the Secretary [of the Interior].”

Purpose and Need 
The purpose of Reclamation’s action is to reliably provide a firm, safe supply of treated drinking water for distribution in the Pojoaque Basin, in compliance with the Settlement Act. 

The need for Reclamation’s action is to reduce reliance on groundwater in the Pojoaque Basin and to allow the Settlement Pueblos to receive a portion of the water provided under the Settlement Act. Reclamation’s action would also enable the Settlement Pueblos to use funding made available in the Settlement Act for certain water-related infrastructure improvements, if requested. This funding can be requested prior to substantial completion of the RWS and used for water-related improvements that would be more cost-effective when implemented in conjunction with RWS construction, if approved by the Secretary of the Interior (Settlement Act section 615[d][7][A][ii]).

Other Objectives of the Project and Connected Actions
The Settlement Pueblos’ and Santa Fe County’s specific objectives of the project are as follows: 
  • Use water secured under the Settlement Act to meet current and anticipated future demand in the Pojoaque Basin
  • Provide adequate water volume and pressure for fire protection
  • Reduce the impacts of groundwater pumping to provide for recharging the aquifer
The Pueblo de San Ildefonso’s additional objectives of the connected actions are as follows:
  • Collect surface water from the Rio Pojoaque to improve irrigation (Rio Pojoaque irrigation improvement project)
  • Complete an assessment of environmental baseline conditions for future water-related projects (Pueblo de San Ildefonso future projects)
  • Complete an assessment of environmental impacts of proposed wastewater system improvements (Pueblo de San Ildefonso future projects)
The Pueblo of Tesuque’s additional objectives of the connected actions (all related to the Rio Tesuque channel modification project) are as follows: 
  • Protect and preserve critical wetlands and springs
  • Increase stream flows
  • Increase infiltration
  • Restore the natural characteristics of the river, including meanders, native vegetation, and a connected floodplain
  • Improve infrastructure used to store water for agriculture, wildlife, and cultural purposes
Decisions Made 
The EIS complies with the National Environmental Policy Act of 1969 (NEPA) by supporting federal decisions related to the RWS project. Both Reclamation and the U.S. Bureau of Indian Affairs (BIA) are making decisions based on the analyses in the EIS. Specifically, the Secretary of the Interior has selected the preferred alternative in the EIS and will construct and temporarily operate a water treatment and distribution system for the Pojoaque Basin, in accordance with the Settlement Agreement and the Settlement Act. Reclamation’s decision has determined the design alternative for the water system and to proceed with project construction and temporary operations, before transferring them to a newly created Regional Water Authority, Santa Fe County, and the Settlement Pueblos.

The BIA, in consultation with the Settlement Pueblos, will decide whether to issue right-of-way (ROW) easements and permits on tribal lands for the construction, operation, and maintenance of the RWS. According to the Settlement Act (Section 611[c][1]) and Cost Sharing and System Integration Agreement (Section 2.3), Pueblos will grant easements and ROWs as necessary for the construction of the RWS at no cost. If needed, this would include the Rio Pojoaque irrigation improvement project and the Rio Tesuque channel modification project. 

Additional federal agencies will use the EIS for their decisions as part of permitting processes, including those under the Clean Water Act, the Endangered Species Act, and other applicable federal laws.

Cooperating Agencies
Fast Facts (some items remain subject to change as the project design is finalized)
  • 4 Below-surface horizontal radial well collectors on the Rio Grande
  • Water treatment plant on 101D north of Hwy 502 on San Ildefonso Pueblo
  • 22 Water storage tanks (7 new tanks and 15 existing)
  • 4 mile-long raw-water pipeline from Rio Grande to the Water Treatment Plant
  • 151 miles of transmission & distribution pipelines
  • 2 miles of new access roads
  • 6 pumping plants
  • 7 miles of new power lines connected to existing grid; solar-ready facilities
  • 856 acres disturbed short-term; 27 acres long-term
  • Maximum 50-foot-wide temporary construction right-of-way along pipeline alignments
  • Approximately 20-foot wide permanent maintenance rights-of-way along pipeline alignments
The project includes activities in and on the Rio Grande, Rio Nambé, Rio Tesuque, and Rio Pojoaque. 

Components of the RWS 
  1. Firm, reliable water supply 
  2. Primary source water collection
  3. Water treatment
  4. Short-term storage tanks
  5. Water transmission and distribution system, including pipelines, pumping plants, forebay tanks, and other associated facilities
  6. Electrical power service