The Hanford Site lies within the semiarid Pasco Basin of the Columbia Plateau in southeastern Washington
State (Figure 1.2.1). The Site occupies an area of about
(approximately
) north of the
confluence of the Yakima river with the Columbia River. This land, with restricted public access, provides
a buffer for the smaller areas historically used for production of nuclear materials, waste storage, and waste
disposal; about 6% of the land area has been disturbed and is actively used. The Columbia River flows
eastward through the northern part of the Hanford Site and then turns south, forming part of the eastern
boundary. The Yakima River runs along part of the southern boundary and joins the Columbia River
downstream from the city of Richland. Adjoining lands to the west, north, and east are principally range
and agricultural lands in Benton, Grant, and Franklin counties. The cities of Richland, Kennewick, and
Pasco (Tri-Cities) constitute the nearest population center and are located southeast of the Hanford Site.

Population estimates for 1994 by the Forecasting Division of the Office of Financial Management of the state of Washington place the totals for Benton, Franklin, and Grant counties at 127,000, 42,900, and 62,200, respectively. The 1994 estimates for the Tri-Cities populations are Richland, 35,430; Kennewick, 46,960; and Pasco, 22,170. The estimated populations of Benton City, Prosser, and West Richland totaled 11,985 in 1994. Estimates of the percent of the population exceeding 65 years of age are 9.72, 9.48, and 13.08 in Benton, Franklin, and Grant counties, respectively, in 1994. The census for 1990 (U.S. Bureau of the Census) revealed that the population of Benton and Franklin counties is young, with 56% of the total population under the age of 35, compared with 54% of the total state population. An examination of age groups in 5-year increments reveals that the largest age group in Benton and Franklin counties ranges from 5 to 9 years old, representing 9.3% of the total bicounty population; the largest age group in the state ranges from 30 to 34 years, which represents about 9% of the total state population.
The entire Hanford Site was designated a National Environmental Research Park (one of four nationally) by the former Energy Research and Development Administration, a precursor to DOE.
The major operational areas on the Site include the following:
Other facilities are located in the Richland Central Area (located south of Saint Street and Highway 240 and north of the Yakima River), the Richland South Area (located between the Yakima River and Kennewick) and the Kennewick/Pasco area.
Several areas of the Site, totaling
(
), have been designated as the Fitzner/Eberhardt Arid
Lands Ecology (ALE) Reserve, the U.S. Fish and Wildlife Service Saddle Mountain National Wildlife
Refuge, and the Washington State Department of Game Reserve Area (Wahluke Slope Wildlife Recreation
Area) (DOE 1986). The ALE Reserve was established in 1967 by the Atomic Energy Commission, a
precursor to DOE. In 1971, the reserve was classified a Research Natural Area as a result of a federal
interagency cooperative agreement.
Land use in surrounding environs includes urban and industrial development, irrigated and dry-land farming, and grazing. In 1993, wheat represented the largest single crop in terms of area planted in Benton, Franklin, and Grant counties. Total acreage planted in the three counties was 207,890 ha (513,700 acres) and 24,120 ha (59,600 acres) for winter and spring wheat, respectively (Washington Agricultural Statistics Service 1994). Corn, alfalfa, potatoes, asparagus, apples, cherries, and grapes are other major crops in Benton, Franklin, and Grant counties. Several processors in Benton and Franklin counties produce food products including potato products, canned fruits and vegetables, wine, and animal feed.
Much of the above information is from Cushing (1994), where more detailed information can be found.