This report documents the CY 1975 environmental monitoring program of the Los Alamos Scientific Laboratory (LASL). Data are presented for concentrations of radioactivity measured in air, ground and surface waters, sediments, soils, and foodstuffs, and are compared with relevant U.S. Energy Research and Development Administration guides and/or data from other reporting periods. Levels of external penetrating radiation measured in the LASL environs are given. The average whole-body radiation dose to residents of Los Alamos County resulting from LASL operations is calculated. Chemical qualities of surface and ground waters in the LASL environs have been determined and compared to applicable standards. Results of related environmental studies are summarized.

Photograph used for a story in the Oklahoma Times newspaper.

Letter from A. D. Azios, LULAC National Executive Secretary, to LULAC councils and officers dated April 24, 1953. The letter details the requirements and filing deadline for candidates running for the office of LULAC National President. This is a returned copy signed by G. C. Martinez of Council #15 in Galveston, Texas.

From abstract: "The Crevasse Canyon formation and Point Lookout(?) sandstone of Late Cretaceous age and the Baca and Datil formations of Tertiary age were mapped in an area of 168 square miles in the upper Alamosa Creek Valley along the northern edge of the Datil Mountains, Catron County, N. Mex. The investigation was made to determine the potentialities of the area for producing uranium and to learn the geologic controls for the concentration of uranium."

From introduction: This report details the seismic measurements by the USGS during the pre-Gnome high-explosives tests near Carlsbad, New Mexico.

From abstract: Seismic waves resulting from a 5 kiloton nuclear detonation 1200 feet deep in a salt bed near Carlsbad, New Mexico were measured by strong-motion seismographs operated by the Coast and Geodetic Survey on the surface in the distance range from 0.5 to 8.8 miles and underground in a potash mine 8.7 to 11.2 miles distant.

Abstract: This document is a survey analysis of soil samples from Los Alamos, Pueblo, Bayo, and Mortandad canyons to determine the presence and activities of radioactive contaminants. Also included are the results of analyses of a few samples of grass and of surface water. This survey covers the period from spring 1953 to spring 1955.

Letter from Ernest Eguia, LULAC National Secretary, to all LULAC members, dated April 29, 1953. Announcement that a chartered bus will be available for LULAC members to travel to the LULAC National Convention in Santa Fe, New Mexico on June 11, 1953.

Introduction: Vanadium ore is being mined at many places in western Colorado, southeastern Utah, northeastern Arizona, and northwestern New Mexico (fig. 1). Eight mills in this region produced about 4,300,000 pounds of V2 05 in 1942, representing about 90 percent of the vanadium obtained from domestic sources. Although ore production has mostly exceeded mill capacity since 1937, production during the last half of 1942 averaged only about 19,000 tons or ore a month, whereas the capacity of these mills total about 22,000 tons a month. At the expected rate of ore production, ore stockpiles will be exhausted sometime in 1944, and these mills will then have excess capacity. With more intensive prospecting than now practiced, however, it is believed that sufficient reserves can be indicated to sustain capacity operation of these mills for several years. This memorandum is prepared to specify those areas that are considered most favorable from a geologic standpoint for developing large reserves of vanadium ore by prospecting. It is based on intensive studies by the Geological Survey since 1939 in most of the areas that produce vanadium ore.

Report discussing the stratigraphy of the Morrison Formation in northwestern New Mexico. From Introduction: "The field work on which this report is based was done during the summer of 1954 when the authors were engaged in investigating the uranium resources of northwestern New Mexico..."

Herman Fuchs' flight record from 1954 to 1970, including aircraft types flown, serial numbers, hours, points of origin and destination, and miles.

Assignment of $750.00 mortgage for 157.08 acres of land in Chaves County, New Mexico Territory from Bob Perryman to Levi Perryman of Forestburg, Texas.

A photograph postcard showing the Santa Fe (ATSF) 1793, 2-8-8-0, coming down Raton Pass light, below Lynn, NM.

A photograph postcard showing the Santa Fe (ATSF) 1797, 2-8-8-2, and 3777, 4-8-4, on eastbound passenger tain No. 20, "The Chief", climbing Raton Pass, just below Lynn, NM, 14 coaches.

A photograph postcard showing the Santa Fe (ATSF) 1797, 2-8-8-2, and 3777, 4-8-4, on eastbound passenger train No. 20, "The Chief", climbing Raton Pass, just below Lynn, NM, 14 coaches. [Rear view of train showing observation/lounge car]

A photograph postcard showing Santa Fe (ATSF) 3782, 4-8-4, going down from Raton Pass with No. 19, "The Chief", below Lynn, NM.

A photograph postcard of Santa Fe (ATSF) 1797, 2-8-8-2, on eastbound passenger Train No. 20, "The Chief", leaving Raton, NM, bound for the Raton Pass, 14 coaches.

Report issued by the U.S. Bureau of Mines discussing fatalities of mine workers while wearing self-contained oxygen breathing apparatuses. Descriptions of the circumstances surrounding the deaths of 26 workers are presented. This report includes a table.

Onionskin paper carbon copy of letter from John J. Herrera the LULAC National President, to Lee Roy Moreno of El Campo, Texas, dated April 29, 1953. This letter discusses the candidates for LULAC National President at the upcoming convention, along with travel details for the trip to the convention in Santa Fe, New Mexico.

Affidavit stating that Bob Perryman, who made Desert Entry No. 1354 at Roswell New Mexico Land Office on January 2, 1904 is dead. He was unmarried, his mother was dead at the time of his death and his only heirs are his father, Levi Perryman, his brother Elbert W. Perryman, his half brother P.M. Price, and his sisters Kate Caddel and Linnie Stalworth. It was notarized by S.H. Hoskins. An additional small sheet was notarized by J.M. Bowers.

Indenture between Hugo Seaberg, his wife Lottie V. Seaberg, and Bob Perryman for a lot in Hagerman, Chaves County, New Mexico Territory.

Patent relating to graphene formation on dielectrics and electronic devices formed therefrom.

Letter from I. H. Kempner to Mr. G. H. Minchin discussing plans to meet before an upcoming luncheon during which Kempner wants to make a favorable impression to the attendees.

Discussing samples collected by the Los Alamos National Laboratory for a detailed geochemical survey of uranium in the northern San Andreas Mountains and the Oscura Mountains of south-central New Mexico.