Public Water Systems Supervision Program
Post Office Box 339
Window Rock, Arizona  86515
Phone 928.871.7755 • Fax 928.871.7818
Window Rock, Arizona
Window Rock is the administrative Capitol and
administrative center of the Navajo Nation, getting its
name from the hole in the 200 foot high sandstone
hill (Window Rock) located there. Located about 24
miles northwest of Gallup, N.M., and about 6 miles
southeast of Fort Defiance, Arizona, it is just across
the New Mexico-Arizona state line, on the Arizona
side, in Apache County.
Our office is located between the Dean C. Jackson Arena and Fair Office/Gorman
Hall on the Navajo Nation Fairgrounds on State Route 264 in Window Rock,
Arizona.
NAME
POSITION
PHONE
EMAIL
Yolanda Barney
Environmental Program Manager
871-7715
ybarney@navajopublicwater.org
Merle R. Chischilly
Senior Environmental Specialist
871-7891
mchischilly@navajopublicwater.org
Elisa Arviso
Senior Hydrologist
871-7893
elisa@navajopublicwater.org
Delfred Gene
Civil Engineer
871-7758
waterdog@navajopublicwater.org
Dinbandhu Gupta
Civil Engineer
871-6789
dgupta@navajopublicwater.org
Sandrina Lester
Associate Civil Engineer
871-7600
slester@navajopublicwater.org
Philbert Morgan
Environmental Specialist
871-7752
pmorgan@navajopublicwater.og
Valerie Tannie
Program & Projects Specialist
871-7757
valerie@navajopublicwater.org
Michelle K. Silver
GIS Technician
871-7759
mksilver@navajopublicwater.org
Melody Becenti
Information System Technician
871-7754
mbecenti@navajopublicwater.org
LoDonna White
Senior Office Specialist
871-7755
lodonnaw@navajopublicwater.org
Shileen Livingston
Office Specialist
871-7600
shhenderson@navajopublicwater.org
Rhonda Notah
Office Aide (TEMP)
871-7753
rnotah@navajopublicwater.org
Contact Us
Navajo Nation Environmental Protection Agency • Public Water Systems Supervision Program