Final report

FINAL REPORT
on the
OFF-SITE WATER SUPPLY AND WASTE DISPOSAL FACILITIES

White Cone HUD Housing

White Cone and Lower Greasewood Chapters, Navajo Nation

Navajo County, Arizona

Indian Health Service

Project No.

NA-93-690
HUD Projects

AZ 12-131/133

Public Law 86-121
Prepared for
U.S. Department of Health and Human Services

Public Health Service

Indian Health Service

Office of Environmental Health and Engineering

Division of Sanitation Facilities Construction

Navajo Area Indian Health Service

Window Rock, Arizona

by

Technical Services Section

DSFC, OEHE, NAIHS

December 2003

Recommended by Approved by

_______________________ _______________________

Jeffrey J. Nolte, P.E. Charles O. Dowell, P.E.

Director, DSFC Director, OEHE

TABLE OF CONTENTS

Page

1. 
   INTRODUCTION 1
   

2. 
   PROJECT LOCATION 1
   

3. 
   PROJECT HISTORY 2
   

4. 
   SUMMARY OF FACILITIES INSTALLED 3
   

5. 
   ANALYSIS OF PROJECT COSTS 4
   

6. 
   CONSTRUCTION EXPERIENCE 5
   

7. 
   OPERATION, MAINTENANCE, AND TRAINING 5
   

8. 
   RIGHT-OF-WAY 5
   

9. 
   TRANSFER OF OWNERSHIP 6
   

10. 
    ACKNOWLEDGMENTS 6
    

LIST OF TABLES

Table 1. Chronology of Events 3

Table 2. Water Supply Facilities 3
Table 3. Sewage Disposal Facilities 4
Table 4. Project Participant List 4
Table 5. Cost of Facilities Installed 5
APPENDICES
Appendix A Engineering Report

Appendix B Memorandum of Agreement

Appendix C Right-of-Way Documents

Appendix D Transfer Agreement

ii

FINAL REPORT

on the
OFF-SITE WATER SUPPLY AND WASTE DISPOSAL FACILITIES

White Cone HUD Housing

White Cone and Lower Greasewood Chapters, Navajo Nation

Navajo County, Arizona

Indian Health Service

Project No.

NA-93-690
HUD Projects

AZ 12-131/133

Public Law 86-121

INTRODUCTION

Under Public Law 86-121 Project NA-93-690, the Navajo Area Indian Health Service (IHS), Office of Environmental Health and Engineering (OEHE), spent $380,156 to provide community water and wastewater facilities to 28 Navajo Housing Authority (NHA) homes in White Cone, Arizona. This project also provided upgrades to water system booster stations in White Cone and Lower Greasewood, Arizona. This document reports Project NA-93-690 activities, including a project history, the facilities installed, construction experience, project costs, and details relating to training, rights-of-way, and transfer.

PROJECT LOCATION

The project area is located within the Navajo Nation in White Cone Chapter, approximately 40 miles north of Holbrook, Arizona, on State Highway 77. The White Cone NHA site is immediately to the south of the White Cone Chapter House. The White Cone booster station is approximately five miles south of the Chapter House, just west of State Highway 77. The Greasewood booster station is in Lower Greasewood Chapter, approximately ten miles northeast of the junction of State Highway 77 and Navajo Route 15.

PROJECT HISTORY

On February 19, 1991 the NHA submitted a project proposal to the IHS requesting off-site sanitation facilities for eight Mutual Help and 20 Low Rent homes to be built in White Cone. A Planning Agreement was executed on September 10,1991 allocating $10,000 for preliminary engineering purposes. The IHS, OEHE, developed a Project Summary that recommended connecting the housing site to the District 7 Regional Water System, increasing the pumping capacity and associated plumbing of both the White Cone and Greasewood booster stations, installing single-phase-to-three-phase electrical power converters at both booster stations, and constructing a three-cell total retention lagoon and sewer line from the lagoon to the housing site boundary. The Project Summary was approved on August 28, 1992 and assigned project number NA-93-690. A Memorandum of Agreement (MOA) between the Navajo Nation; the IHS; the Navajo Engineering and Construction Authority (NECA), an enterprise of the Navajo Nation; the Navajo Tribal Utility Authority (NTUA), an enterprise of the Navajo Nation; the NHA, also an enterprise of the Navajo Nation; and the U.S. Department of Housing and Urban Development (HUD) was executed on August 16, 1993. This agreement stipulated the provisions of the project, including areas of responsibility, types of facilities, and method of construction (see MOA Appendix).
On June 27, 1996, a memorandum acting as Amendment No. 1 to the Project Summary was executed to revise the cost estimate from $287,000 to $332,000 (see attached) by transferring the construction of a gas chlorination station from project NA-87-495, Indian Wells HUD Housing, to project NA-93-690. On February 13, 1997, a letter serving as Amendment No. 1 to the MOA was executed to get the concurrence of HUD in this transfer of funds and project scope.
On January 15, 1998, a letter serving as Amendment No. 2 to the MOA and Project Summary was executed to increase the NHA contribution to the IHS to $457,000. Construction on project NA-93-690 began in December 1993 and was completed by July 1997.
Table 1 is a chronology of significant documents and events pertaining to project NA-93-690.
Table 1. Chronology of Events

Event: Date:

Project Proposal February 1991

Planning Agreement September 1991

Project Summary August 1992

Amendment No. 1 June 1996

Amendment No. 2 January 1998

Memorandum of Agreement August 1993

Amendment No. 1 February 1997

Amendment No. 2 January 1998

Project Construction

Started December 1993

Completed July 1997

Transfer Agreement December 2002

Final Report December 2003

SUMMARY OF FACILITIES INSTALLED

NECA constructed all of this project. The IHS contributed funds to NECA to cover its non-profit project costs. The IHS also provided engineering services and some construction materials. Tables 2, 3, and 4 summarize the facilities installed under Project NA-93-690.

Table 2. Water Supply Facilities

No. of Population* Homes

Type of Facility Units Served Served

Water System

6" PVC 160 psi 200 Ft. 140 28

6" Gate Valve 3 Ea. 140 28

PRV, 2"x2"x3/4" 1 Ea. 140 28

Greasewood Booster

Booster pump and motor (30 Hp) 2 Ea.

Booster plumbing (6") 1 JB.

3-Phase Power Converter 1 Ea.

Electrical Upgrade 1 JB.

(Continued)

_______

* Population is estimated at five persons per home.

Table 2. Water Supply Facilities - Continued

No. of Population* Homes

Type of Facility Units Served Served

Greasewood Booster – Continued
Gas Chlorination 1 JB.

Booster Station Building Renovation 1 JB.

White Cone Booster

Booster pump and motor (15 Hp) 2 Ea.

Booster plumbing (4") 1 JB.

3-Phase Power Converter 1 Ea.

Fencing 1 JB.

Pitless Unit 1 JB.

Electrical Upgrade 1 JB.

Gas Chlorination 1 JB.

Prefab Booster Station 1 JB.

Table 3. Sewage Disposal Facilities

No. of Population* Homes

Type of Facility Units Served Served

Lagoon 4.61 AC. 140 28

Lagoon Plumbing 1 JB. 140 28

Lagoon Fencing 1,800 Ft. 140 28

8" Sewer line 2,000 Ft. 140 28

Manholes (0-6') 6 Ea. 140 28

Table 4. Project Participant List

Water System Sewer

Homeowner Service Name Service

1-28 NHA Housing Units 28 Ea. White Cone 28 Ea.

ANALYSIS OF PROJECT COSTS

Project NA-93-690 costs totaled $380,156. The average cost per home for this project was $ 13,577. The HUD contributed all of the funding for this project. The IHS will return the balance of contributed funds to the NHA. Table 5 details project NA-93-690 costs.

_______

* Population is estimated at five persons per home.

Table 5. Cost of Facilities Installed

Item Total Cost

Construction and Materials $ 285,117

Support Services 34,440

Miscellaneous 60,599

TOTAL PROJECT COST $ 380,156

CONSTRUCTION EXPERIENCE

Phase I construction included the off-site sanitation facilities for the White Cone NHA housing site. Phase II included the scope of work for both the White Cone and Greasewood booster stations. A change in project management between phases and additional time to complete a District 7 Regional Water System flow analysis with the NTUA caused a delay of over a year. Higher than estimated costs during Phase II resulted in a request for increased funding. Problems in bringing the Greasewood booster on line and in obtaining Affidavit of Punch List Completion for the final phase also contributed to the long duration of the project.

OPERATION, MAINTENANCE, AND TRAINING

The NHA offered training to the homeowner, emphasizing the proper use and maintenance of on-premise facilities and giving attention to the health benefits that result from the proper use of these facilities. The responsibility to operate and maintain the community facilities constructed under this project rests with NTUA. NTUA personnel involved in operation and maintenance (O&M) of these facilities received initial training from the IHS and have the opportunity to participate in IHS on-going training for water and sewer systems O&M.

RIGHT-OF-WAY

The IHS obtained right-of-way and archaeological clearance for all facilities constructed under this project. Copies of right-of-way documents, including Grants-of-Easement and Affidavits of Completion, are included in the Right-of-Way Appendix in this report.

TRANSFER OF OWNERSHIP

The facilities constructed under this project were transferred to the Navajo Nation on December 23, 2002.

ACKNOWLEDGMENTS

This Final Report was prepared by Rosalyn Roanhorse, Technical Writer, TSS, DSFC, OEHE, NAIHS, using information in the project files and a draft narrative prepared by Donnell Hnat, Field Engineer, DSFC, OEHE, Winslow Service Unit.