Tucked away in an appendix at the back of an Army report is a map that shows how a third of the vast Dugway Proving Ground - and some areas off it - are likely contaminated by past tests.

That report - from the U.S. Army Environmental Hygiene Agency - says 18 of 19 large areas outlined on the map (see accompanying illustration) may contain buried, unexploded munitions throughout. Following are details of the types and amount of testing that the report says may have led to the problems:AREA 1 _ Unexploded munitions are suspected in this area from what reports said were "approximately 7,500 individual tests, including artillery, rockets and (chemical arms) spray missions. More similar tests are planned there."

Another report by the U.S. Army Toxic and Hazardous Materials Agency says areas off base just south of Area 1 are also likely littered by unexploded munitions, and that the base boundaries should be expanded to include that region, which is now administered by the U.S. Bureau of Land Management.

AREA 2 _ This area spreads south of base boundaries along a dry river bed.

During World War II and from 1950 to 1957, a complex of tunnels and bunkers there was used to test penetration by rockets, artillery shells, bombs and bulk containers filled with mustard agent and nerve agent GB. The report says such chemicals may contaminate soil for years depending on environmental conditions.

The Army is also proposing to expand base boundaries in this area to include possibly contaminated areas off base.

AREA 3 _ More than 10,000 rounds of high-explosive and chemical weapons were fired into the area during the late 1950s and early 1960s.

AREA 4 _ This region was a test area for chemical and explosive munitions that included "in excess of 500" missions beginning in the late 1940s.C

AREA 5 _ More than 6,500 rounds containing chemical agents were fired into this area using 155mm projectiles and M55 rockets.

AREA 6 _ About 250 chemical-agent land mines, projectiles and dissemination devices were used here to test "protection afforded by fortification complexes."

AREA 7 _ About 500 missions involving artillery shells, cluster bombs and chemical spray devices were conducted here during the 1950s and 1960s.

AREA 8 _ It was the principal area for tests of persistent chemical agents. More than 1,000 programs were conducted during the 1950s and 1960s to test artillery projectiles, land mines, test vehicles, spray systems, drones, rockets and numerous other undisclosed devices.

AREA 9 _ About 500 chemical arms projectiles, rockets and other explosive devices were tested here in the 1950s.

AREA 10 _ During the 1960s, about 500 items ranging from chemical-agent bomblets to artillery shells were disposed of in the area by "explosive and caustic methods." The report gives no further details.

AREA 11 _ The only area said likely not to be littered with unexploded arms. The report simply says that the area was "cleaned of all explosive and chemical residues under the Phase I Demilitarization Program." It does not say what once contaminated the area.

AREA 12 _ More than 1,200 conventional, high-explosive artillery projectiles were fired in this area in the late 1960s and early 1970s.

AREA 13 _ About 300,000 conventional and "illuminating" artillery projectiles were tested in this area from 1965 to 1970. In the 1940s and 1950s, the area was also used for tests of large bombs and explosives.

AREA 14 _ It has recently been used for tests of the nation's new binary chemical arms, which were filled with simulants. In the 1950s it was used to fire chemical munitions. Since the 1960s, "in excess of 5,000 rounds have been fired into this area."

AREA 15 _ The area is used to test "the efficiency and area coverage of (chemical agent) artillery projectiles, bomblets, land mines and test devices." About 500 missions have been conducted here.

AREA 16 _ The area was used in the 1950s for "testing munition effectiveness against a fortification complex and has been inactive since that time."

AREA 17 _ During World War II, the area was used to test about 500 total rounds of chemical, incendiary and high-explosive munitions, mortar rounds and bombs.

AREA 18 _ While munitions on the surface of most areas have been cleaned up and officials worry only about buried arms, the report says in this area "there are many mortar bodies on the surface of the ground, some could be dud munitions."

The area was possibly used in the 1940s as a chemical test area, and in the 1950s and 1960s to test illumination and high-explosive rounds.

AREA 19 _ It was used as an impact and disposal site through the early 1950s, but no official record apparently exists about that activity. But the report said a search of the area in 1976 and 1977 "revealed a number and variety of chemical munitions, spray tanks and containers."

st The areas listed by the map are not necessarily the only possibly contaminated areas on base. Reports also identify 124 specific hazardous waste sites.

And, as reported previously by the Deseret News, some areas where anthrax-disease-causing spores and other biologic arms were tested were once considered "permanently contaminated" by the Army. But it withdrew that classification after test sheep in those areas did not become sick. However, some scientists say it is virtually impossible to kill anthrax spores, and such areas should still be considered contaminated.

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