Environmental Monitoring and Support Laboratory Las Vegas SB532 SiU^f/1 First Quarter - January, February, March 1977 m) \ IV1- ------- FIRST QUARTER REPORT OF THE ENVIRONMENTAL MONITORING AND SUPPORT LABORATORY LAS VEGAS January through March 1977 U.S. ENVIRONMENTAL PROTECTION AGENCY OFFICE OF RESEARCH AND DEVELOPMENT ENVIRONMENTAL MONITORING AND SUPPORT LABORATORY LAS VEGAS, NEVADA 89114 ------- CONTENTS Page EVENTS OF GENERAL INTEREST 1 BIOLOGICAL MONITORING 4 MONITORING SYSTEMS DEVELOPMENT 7 EQUIPMENT AND TECHNIQUES DEVELOPMENT 10 MONITORING 13 QUALITY ASSURANCE 16 TECHNICAL SUPPORT 18 ------- EVENTS OF GENERAL INTEREST Mr. George B. Morgan, Director of the Environmental Monitoring and Support Laboratory-Las Vegas, and Dr. Bruce Wiersma of the Laboratory's Monitoring Systems Research and Development Division, attended the Man and the Biosphere (MAB) Conference in Reno, Nevada, March 28 through 30. The Las Vegas Laboratory seeks to participate in the MAB Program of the United Nations Educational, Scientific, and Cultural Organization (UNESCO). Biosphere reserves are pristine areas that are being set aside perpetually by cooperating nations to protect representa- tive segments of the world's natural biomes. The purpose is to conserve the diversity and integrity of biotic communities of plants and animals within natural ecosystems for present and future use and to safeguard the genetic diversity of species, thus permitting their continuing evolution. Another purpose of the biosphere reserves will be to use them as environmental baseline research and monitoring sites. Cost-effective and non-destructive monitoring techniques are needed to assess pollutant exposures and impacts. The monitoring systems developed and implemented for the biosphere reserves also may be incorporated into the Global Environmental Monitoring System (GEMS). The Las Vegas Laboratory has developed a detailed concept paper on how to monitor pollutants and their impact on the eco- systems of the biosphere reserves. This paper discusses the applicability of the advanced monitoring systems being developed by the Laboratory to the monitoring requirements of the biosphere reserves and the GEMS. The Laboratory is proposing to study several of the sites being set aside in the United States to develop generally applicable monitoring techniques and criteria which can be used as the bases for designing responsive monitor- ing systems for each individual biosphere reserve. In the paper, emphasis was placed on the development of monitoring systems which are capable of economically acquiring reliable and compara- ble data on ultra-low levels of environmental pollutants and their impacts. Mr. Morgan welcomed the Second Workshop on Sampling and Analysis of Geothermal Effluents in Las Vegas, February 15 1 ------- through 17. This was the second in a seriek of workshops con- vened to present and discuss data on the state-of-the-art of geothermal sampling and analytical methods. The overall objec- tive of this series of workshops is to produce a recognized standard monitoring methods handbook. Standardized methods are needed to assure that the appropriate quality control procedures have been exercised in sample collections, handling, and analy- sis, and that the data obtained are scientifically acceptable and legally defensible. The participants represented government agencies, universi- ties, and industrial firms concerned with the environmental impact and monitoring of geothermal developments. Thirty-five papers contributed by the 135 participants formed the basis for discussion at the second workshop. The Las Vegas Laboratory and the Industrial Environmental Research Laboratory of Cincinnati, Ohio, cosponsored the workshop on behalf of EPA's Office of Research and Development. The proceedings are expected to be available this summer. Mr. Arthur Jarvis, Chief of the Quality Assurance Branch of the Laboratory's Monitoring Systems Research and Development Division, participated in the Region IV Drinking Water Symposium in Atlanta, Georgia, February 2 and 3, The purpose of this symposium was to discuss implementation of the public water supply supervision program under P.L. 93-523 with emphasis on radiochemistry issues. Mr. Jarvis led the discussion of labora- tory certification and quality assurance during the radiation session. He also presented an overview and update on laboratory certification and analysis and data control during the joint session. Mr. Jarvis also participated in the Drinking Water Quality Assurance Work Group meeting at the Environmental Monitoring and Support Laboratory-Cincinnati on March 21 through 23. He served as chairman of the Radiochemistry Sub-Group. The purpose of the meeting was to prepare the final criteria and procedures for the certification of laboratories involved in the analysis of potable waters. The Laboratory's Remote Sensing Division participated in the technology transfer course conducted by the National Aeronautics and Space Administration at the Earth Resources Laboratory, Slidell, Louisiana, in December. The course was designed to provide the necessary training and "hands-on" experience for processing and analyzing multispectral scanner data. Las Vegas Laboratory representatives demonstrated the processing of air- craft multispectral scanner data. Classification was designated for 12 characteristics from data on a power company mine in Converse County, Wyoming. 2 ------- Mr. Frank Jakubowski of the Laboratory's Monitoring Operations Division became the first radiation monitor at the Laboratory to be listed in the National Registry of Radiation Protection Technologists, His qualification for the Registry resulted from an examination taken in November 1976. 3 ------- BIOLOGICAL MONITORING SOIL MICROORGANISMS During this quarter, research was conducted to determine the feasibility of using a common soil microorganism, Alcaligenes paradoxus, to determine the availability of toxic materials in soils to biological systems. Preliminary tests have shown a relationship between the activity of this organism and the availability of mercury and lead. Alaaligenes paradoxus also may be sensitive to sulfur dioxide. If further research confirms these findings, microorganisms of this type eventually may be used as part of simple and low- cost monitoring systems to determine the extent of ecological damage caused by toxic chemicals. Monitoring for this kind of damage is required by the Toxic Substances Control Act. SMALL MAMMALS A series of studies to develop a relatively rapid method of determining the biological availability of toxic substances was begun. By using various species of small mammals as biological monitors of environmental pollution, an indication of biological availability may be determined as the form of the pollutant changes with time after physical and chemical interaction with other materials. In order to be able to select the correct samples to monitor these changes and to interpret what has occurred, it is necessary to determine the intestinal absorption, routes of excretion, blood content, and tissue deposition. Data on the fetal transfer of various chemical and physical forms of these toxic materials are also necessary for estimating the relationship between expo- sure to selected toxic substances and the dose received by fetuses and infants. Studies are being conducted with rats to provide such data on lead and cadmium. 4 ------- DAIRY COWS A study of americium uptake, excretion, and tissue retention in dairy cows was recently conducted at the experimental farm on the Nevada Test Site. Four lactating cows were used for this phase of a continuing program to determine the biological trans- port of transuranic elements. Previous studies have included work with plutonium as a contaminant and, if the use of nuclear power is increased, both plutonium and americium are expected to be produced in greater quantities. A fundamental objective of these metabolism studies is to determine what fraction of a dose administered to an animal will reach edible animal products such as milk, liver, and muscle. Following either an acute oral dose of 42 millicuries (mCi), or a singl e intravenous (citrate-buffered) dose of 1 mCi, samples of milk, blood, urine, and fecal material were collected daily from the four animals. The cows were sacrificed for tissue collection approximately 200 hours after dosing. Americium concentrations in the sample material are being determined by counting the 60 keV gamma-ray of americium-241 using a phoswich detector. Selected samples will also be pre- pared for radiochemical analyses. Data are not yet available. Persons participating in this study were whole-body counted before and after the study to determine individual plutonium levels as a result of possible exposure. The phoswich detector was used as a background check. The results indicated that there was no detectable contamination in any of these persons. BEEF CATTLE The actinide concentrations in selected organ and tissue samples have been determined for beef cattle sacrificed and sampled periodically during a 3-year grazing study on a plutonium- contaminated range of the Nevada Test Site. Actinide concentrations in the skeletons of the cows origi- nally introduced into the study areas showed little increase with increased time of exposure, while those of animals born in the study areas showed a continued upward trend with time. The plutonium-239/americium-241 ratios found in tissue and ingesta samples suggest little differentiation in the uptake of these radionuclides. However, the plutonium-239/plutonium-238 ratios indicate that plutonium-238 is more readily absorbed. Gonadal actinide concentrations were significantly higher than those found in the blood and muscle samples and approached those measured in bone samples. 5 ------- These data indicate that in estimating human exposure con- sideration should be given to the plutonium-239 dose to the gonads as well as that to the bone, liver, and lungs. MULE DEER During the summer of 1976, 11 mule deer captured on the Nevada Test Site were outfitted with radio transmitters and released. Their movements were monitored during weekly ground and biweekly aerial surveys to determine their migratory behavior. Some of the deer began to migrate in December and by early March, only three of the deer remained in the general vicinity of their capture on Rainier Mesa. The other eight deer migrated to the Timber Mountain and Forty Mile Canyon areas of the Nevada Test Site. My mid-March, two of the three remaining deer had also migrated to these areas. The study is sponsored by the U.S. Energy Research and Development Administration (ERDA) and is being carried out in cooperation with the Nevada Department of Fish and Game. 6 ------- MONITORING SYSTEMS DEVELOPMENT The Laboratory is preparing a Western Energy/Environment Monitoring Atlas to present an overview of five minor drainage basins in the Western Energy Resource Development Area. It will give policy makers at EPA and State levels a regional perspective of the impacts of the pattern of energy-dedicated land use on environmental quality. Resource development, basin morphometry and available monitoring stations within each are are included, with additional sections devoted to discussion of water quality parameters and data. The purpose of the Atlas is to synthesize monitoring infor- mation into an integrated format wherein both the geographical pattern of sources and the geographical extent of media quality (air, land and water) can be displayed. While information of air, surface and ground water quality and land character in the vicinity of each distinct source of energy-related pollution is important, how the overall pattern of energy development is affecting and will affect environmental quality is the key ques- tion to be answered. The Atlas, scheduled for publication this summer, will be updated annually and will enable planners to place local energy-related environmental trends in a balanced regional context. CARCINOGENS In October 1976, the Las Vegas Laboratory was assigned responsibility for part of a study to develop a monitoring system for assessing the movement and potential exposure of critical receptors to environmental carcinogens. Using existing data bases, counties in the United States were ranked in two ways. One ranking was by production capacity of primary organic chemicals that appear in the list of suspected carcinogens published by the National Institute for Occupational Safety and Health (NIOSH). This list includes such chemicals as formaldehyde, benzene, carbon tetrachloride and phenol. The other ranking was by cancer mortality rate between 1950 and 1969 for selected cancer types. Statistically significant positive correlations have been found between benzene and phenol production capacity and mortal- ity rate from lung cancer in white and non-white males and also 7 ------- between benzene production capacity and the mortality rate for breast cancer in non-white females. Counties that produce benzene and carbon tetrachloride had significantly higher cancer rates in white males for the large intestine, the rectum, and the lung compared to randomly selected adjacent counties. The results indicated significantly elevated lung cancer rates in counties that produce phenol and formaldehyde. Also, significant correlation coefficients were found for total cancer incidence and total chemical production for all of the chemicals studied for both white and non-white males. A complete description of the study and a report on the results of this preliminary analysis of the data are being prepared. PHOTOCHEMICAL OXIDANTS The Tampa Bay, Florida, Photochemical Oxidant Study, which begins April 1, is expected to show whether additional air pollu- tion control measures are needed to meet air quality standards in the Tampa Bay area. This study is a cooperative effort between EPA, the Hillsborough County Environmental Protection Commission, the Manatee County Health Department, the Pinellas County Depart- ment of Environmental Management, the St. Petersburg Environ- mental Affairs Department and the Sarasota County Department of Environmental Control. Photochemical oxidants result from complex atmospheric reactions involving hydrocarbons and nitrogen oxides in the presence of sunlight. Oxidants are irritating to the respiratory tract and can damage vegetation. An intensive field monitoring program and an air quality network have been established to collect data for the validation of a photochemical oxidant model for the Tampa Bay area. This network consists of 25 meteorological stations, 17 ozone monitors, 8 oxides of nitrogen monitors, 7 hydrocarbons monitors, 1 tether- sonde station and 1 hydrocarbon grab-sample network. The Labora- tory's responsibility is to act as technical director for the network monitoring, to provide data analysis, to validate the photochemical model, and to provide meteorological scenarios to assess oxidant concentrations under selected meteorological regimes. GEOTHERMAL ENERGY An exposure/dose assessment study is being conducted to establish baseline concentrations of selected elements in tissue 8 ------- of the fauna of the Imperial Valley, California, and Roosevelt Hot Springs, Utah. Collections are made as part of an effort to design suitable environmental monitoring techniques for geother- mal resource developments. On a recent trip to the Imperial Valley, samples of blood and hair were taken from beef cattle. Eggs, feathers and feed samples were obtained from local poultry production facilities. The sampling of beef cattle will be emphasized in this study. However, game birds, resident water- fowl, and poultry products may be sampled on a limited basis. All collections are being analyzed at the Las Vegas Laboratory. 9 ------- EQUIPMENT AND TECHNIQUES DEVELOPMENT GAMMA SPECTROSCOPY A sophisticated gamma spectroscopy system which reduces manual data handling and provides a more reliable means of data transfer for large-scale computer processing became operational this quarter. The system uses three high-speed mini-computers, each with dedicated functions. Two of the computers control data acquisi- tion and display on a TV-like screen, while the third computer handles all programming and storage. The computers communicate with each other over an electrical data highway at a speed that is 6.5 times faster than any conventional system available. The new system can handle data acquisition from eight inde- pendent gamma detectors at rates up to 250,000 nuclear events per second. A rapid data rate such as this could not be handled in conventional systems. During sample analysis, analytical data are stored directly in the computer memory and are later transferred to magnetic tape. The record on tape contains all necessary sample identifi- cation codes and experimental parameters along with the raw data; thus the raw data can always be located for each sample. The tape records can then be processed by computer to reduce the data and to generate all of the required reports. Although the entire system is now dedicated to gamma spec- tral analyses, future expansions will allow the incorporation of many other types of nuclear radiation counting instrumentation. INFORMATION MANAGEMENT The FAMULUS information management system, which was devel- oped by the U.S. Forestry Service for storing and retrieving information, was used extensively this quarter for processing cross-check program data. Summary reports have been prepared for EPA Regions I, VII, and X, and for the Las Vegas Laboratory. The Laboratory's sum- mary report is a typical example of the capability of the system 10 ------- and the manpower savings possible. For this report, all of the Laboratory's historical data were rearranged by study type and sorted both by isotope and date. To accomplish this, the com- puter had to search about 28,000 individual laboratory reports and select the data needed for each listing. Since the inception of the cross-check program, about 30,000 isotope measurement reports have been received from 133 laboratories. About 15 minutes was required to prepare the computer instructions, and about 15 minutes of computer time was required to search the files for the Las Vegas Laboratory data, rearrange it in the desired sequence, and print it. ALPHA PARTICLE DETECTION A one-pi alpha particle detector, similar to one being used by the National Bureau of Standards (NBS), has been fabricated and is currently being installed in the Laboratory for use on quality assurance programs. This instrument will permit more precise measurements of alpha-emitting radioactive sources. REMOTE SENSING TECHNIQUES The Laboratory has published a report outlining its method for using the new Daedalus DS-1260 multispectral scanner system and the new Data Analysis System computer. This new system, to be operational in the next quarter, will be more efficient, accurate and reliable than the current system for processing thermal pollution data. Application of aerial multispectral techniques for quantita- tive determination of turbidity is proceeding. The Rapid Scan- ning Spectrometer system was installed in a helicopter and is operational. A 6-month data collection project is being planned, including the processing of water samples by the Laboratory. Efforts are underway to optimize the Laboratory's Image Analysis System (IAS) by upgrading present equipment and inte- grating applicable techniques and equipment used in other systems. Standard off-the-shelf equipment was surveyed and a report pre- pared by a contractor which documents recommended equipment to be integrated into the IAS. The development of environmental keys is an ongoing and continuous program. Currently the Laboratory's Environmental Photographic Interpretation Complex at Vint Hill, Virginia, is working on keys that will aid in monitoring damage to vegetation by sulfur dioxide from coal-fired power plants. 11 ------- Also, a prototype key for detecting and identifying leachate from landfills is nearing completion. It was developed both from in-house programs and a research and development program con- ducted for EPA by Cornell University. Also in the final stages is a key detailing real and potential pollution problems in a major harbor area. The Light Aircraft Sensor Pod (Enviro-Pod) has been certi- fied by the Federal Aviation Administration and is undergoing preliminary tests. The first familiarization test was completed at Manassas Airport March 15. Laboratory measurements of fluorescent spectra of selected water pollutants were completed on water samples taken from Lakes Mead and Mohave and the Atchafalaya Basin to correlate total organic carbon and fluorescence. The project dealing with the search for changes in fluorescent spectra from plants stressed from various air pollutants has not yielded data which would support a full-scale greenhouse study. Plants have been exposed to ozone, sulfur dioxide and nitrogen dioxide, with only nitrogen dioxide exhibiting any changes in the fluorescent spectra, and that only a change in magnitude. Laboratory studies were completed on determining the absorp- tion characteristics of candidate tracer gases to be ultimately monitored using differential absorption techniques. A sulfur dioxide remote sensor based on ultraviolet differential absorp- tion techniques was designed. A computer model simulating LIDAR returns from plumes has been written and will be used to test various display configura- tions. A microprocessor-based data readout station has been assembled, including supportive software which reads digital LIDAR tapes and displays the data on a color cathode ray tube. 12 ------- MONITORING AIR Continuous data collection for the Hawaii Power Plant Study has been underway for 2 months. The first performance survey by the contractor is complete, an operations manual has been com- pleted, and preliminary data processing routines have been pre- pared. Three ground stations are operating on Maui and addi- tional stations are to be located at Kahe point. This study is designed to collect ambient sulfur dioxide and particulate data, as well as meteorological data, in the downwind vicinity of two fuel oil-fired electrical generating plants. The data col- lected will be used to validate a dispersion model for each plant location. All data have been collected for the Anaconda, Montana, Smelter Study, begun on October 1, 1976. The purpose of the study is to measure plume rise, horizontal and vertical disper- sion coefficients, and centerline concentrations of the stack plume from the smelter and to obtain ground level sulfur dioxide concentrations averaged over 3- to 24-hour periods during times when the plume is at or near the surface of elevated terrain in the vicinity of the smelter. Aerial data collection was done with the Laboratory's H-34 helicopters equipped with air quality and 3-dimensional positioning equipment. Ground level sulfur dioxide measurements were made using a system designed to be transported by sling with one of the UH-1 helicopters. The ground system was designed to be moved quickly to any location where the visible plume could be seen striking the elevated terrain which surrounds the smelter. This system ceased opera- tion on February 28 after sampling 17 sites. Data collected are now being compiled and processed. Collection and processing of air quality data in the Williams Air Force Base air pollution monitoring project will continue into the summer. This study was begun on June 1, 1976, with a five-station air quality monitoring network conducted in coopera- tion with the U.S. Air Force Civil Engineering Center and the Argonne National Laboratory to test the ability of existing air quality simulation models to estimate the air quality impact of airport emissions. One-hour averaged data tapes have been gener- ated for October, November and December 1976 and acoustic sounder data have been brought up to date. 13 ------- RADIATION Whole-body counts were made on 62 residents (20 families) to measure body burdens of radioactive contamination in off-site residents who may have been exposed to radioactivity from nuclear testing activities at the Nevada Test Site. Radiation levels detected have not been any different from those found in the general population. In the projects to determine the areal distribution of Plutonium around the Nevada Test Site, 104 air samples were collected to investigate the possibility of resuspension by high winds. An additional 105 soil samples were collected to fill gaps in, and extend the coverage of, the off-site soil survey. Special soil samples collected from a box canyon northeast of the Nevada Test Site showed about twice as much plutonium in soil collected from the wash as from the canyon sides. Runoff water and sediment collected from Forty Mile Canyon showed no evidence of hydraulic movement of plutonium. An updated report of pluto- nium trends in air and distribution in soil was presented at the March 1977 meeting of the Nevada Applied Ecology Group. A special project was conducted to measure airborne tritium in the vicinity of a waste storage area in Area 15 of the Nevada Test Site. Although tritium concentrations as high as 35,000 picocuries per cubic meter were measured at the storage area, no tritium related to this storage was detected off-site. Several refinements in the dosimetry program have provided improved accuracy of exposure dose measurements and increased the ability to detect small increases above background exposure. An evaluation of data from thermoluminescent dosimeters revealed that an incorrect value had been used to calibrate the high temperature conditions prevailing at most of the stations during the summer. An improved predictive model was developed to pro- vide a more precise estimate of expected background at a given station for the current quarter of exposure. WATER Final data collection for the energetics phase of the Atcha- falaya Basin, Louisiana, Water and Land Quality Management Study was completed. Intensive sampling of selected management units and major inlets and outlets was conducted on a monthly basis using small boats. A helicopter sampling team collected samples from 120 sites established through the Basin during four 10-day surveys to provide synoptic water quality data. Pesticide sam- ples were collected at four sites in a management unit which receives extensive agricultural drainage. The samples are being analyzed for pesticides at the EPA facility at the National Space Technology Laboratory in Bay St. Louis, Mississippi. 14 ------- The staff of the Laboratory's Baton Rouge field station will initiate an investigation of spoil disposal sites in April. This study will provide a basis for evaluating the relative suitabil- ity, location and nature of habitat types to save as dredge spoil deposition areas. Such suitability will be defined in terms of minimal impact upon water quality, internal water circulation and management unit integrity. A project to develop LANDSAT satellite data application for determining the trophic state of freshwater lakes is scheduled to be completed this summer. The accuracy of the Jet Propulsion Laboratory LANDSAT lake-image extractions has been checked and forwarded to the Illinois Environmental Protection Agency for verification. Correlation and regression analyses have been performed on LANDSAT data and lake sampling and measurement data for 11 of 31 proposed baseline lakes. 15 ------- QUALITY ASSURANCE An agreement to identify and establish conditions under which the EPA will provide the Nuclear Regulatory Commission (NRC) with certain quality assurance services under the EPA National Quality Assurance Program has been finalized. On March 17, NRC personnel were briefed by Laboratory personnel on what is available through the program and how it is administered. In particular, the implementation of the EPA/NRC interagency agreement, the Radioactivity Standards Distribution Program, and the Environmental Radioactivity Laboratory Intercomparison Stud- ies Program were discussed. A study of the effects of time and sample preservation techniques on the results of nutrient analyses has been initiated at the Las Vegas Laboratory. This study will focus on phospho- rus*, Kjeldahl nitrogen, ammonia, alkalinity, and nitrate-plus- nitrite analyses. Some 700 samples are expected to be analyzed for the study. Three methods are being evaluated for the analysis of radium-228 in response to the standards set by EPA in the Interim Primary Drinking Water Regulations (Federal Register, July 9, 1976). The best of three methods with respect to analytical precision and accuracy as well as ease of performance will be recommended as the EPA reference method. Final reports were issued to participants in the Environ- mental Radioactivity Laboratory Intercomparison Studies Program for five different cross-check analyses; October - gamma in water, and tritium in water; November - milk, gross alpha and gross beta in water, and food. The types of cross-check analyses and the number of participating laboratories during this quarter are shown in the following table. * dissolved, total dissolved and total 16 ------- Type of Cross-Check January February March Air Filter — — 67 Gamma in water — 72 Gross alpha and gross beta in water 61 — 77 Milk 64 — 80 Radium-226 in water — — 39 Tritium in urine — -- 19 Tritium in water — 64 Food — 27 Krypton-85 in air 19 17 ------- TECHNICAL SUPPORT ERDA Laboratory support provided to the U.S. Energy Research and Development Administration (ERDA-funded programs) included the following analyses: Quantity Analysis 100 Iron-55 44 Gross alpha and beta in water 3,788 Gross beta on air filters 30 Radium-226 38 Tritium-enrichment 140 Krypton 89 Plutonium Quantity Analysis 74 Strontium-89 and -90 100 Ge (Li) Gamma Spectroscopy 2,678 Nal Gamma Spectroscopy 334 Tritium-routine 140 Xernon 140 Tritiated Methane 2 Uranium EFA-0RP Laboratory support provided for the Office of Radiation Programs-Las Vegas Facility included the following analyses: Quantity Analysis Quantity Analysis 131 Radium-226 66 Radium-228 64 Lead-210 9 Gross alpha in water 27 Radon-222 109 Uranium 108 Thorium 37 Polonium 99 Nal Gamma Spectroscopy EPA-RESEARCH TRIANGLE PARK Mr. Edward Schuck, Chief of the Monitoring Systems Design and Analysis Staff, and Dr. Robert Kinnison of the Quality Assur- ance Branch, both of the Laboratory's Monitoring Systems Research and Development Division, were detailed to the Criteria and Special Studies Office of the Health Effects Research Laboratory, Research Triangle Park, North Carolina, during the week of 18 ------- February 14 to serve on a committee revising the "Air Quality Criteria for Atmospheric Lead" document. era-office OF SOLID WASTES MANAGEMENT During this quarter, partial deliveries were made of aerial photographic imagery in the ongoing non-point source inventory of Newcastle County, Delaware, and Gloucester County, New Jersey. The imagery included non-point source inventories using annotated overlays to 7£-minute quad sheets and photographs showing site conditions of active and abandoned landfills. EPA REGION I Aerial photographic imagery covering the extent of algae growth and watershed non-point source contribution to Machang Pond, West and Quinsigaimond Rivers and landfill leaching into Webster Lake in central Massachusetts was collected and delivered. Imagery was also collected to determine the extent of algae growth in lakes, erosion/sedimentation into the Royal and Stroud- water watershed, and to locate and delineate landfill leachate springs in Maine. Photographs were taken of 13 landfill sites in metropolitan Boston for use in preparing an environmental impact statement on the upgrading of the Metropolitan District wastewater system. Also in Massachusetts, an emergency response aerial survey was completed to document a Nantucket oil spill and a Buzzards Bay oil spill. In Berlin, New Hampshire, imagery was collected and analyzed to determine the extent of vegetation damage as a result of air emissions of sulfur dioxide from a paper manufacturing plant. In support of the Spill Prevention Control and Countermea- sures Program (SPCC), 23 bulk oil storage facilities in the Region were surveyed. Color photography was collected to deter- mine the absence or adequacy of secondary containment, potential spill threats and other hazardous conditions within each facility. Two surveys of power plants were completed. These included photographic display of thermal discharges from power generating stations and isothermal contour plots of discharges from certain power generating facilities. 19 ------- REGION II Aerial surveys were conducted along the Hudson River in New York to determine the location and extent of oil spilled from a ruptured barge. REGION III Photographic support and analysis were completed in defining the extent of an oil spill in Marcus Hook, Pennsylvania. Imagery also showed broken or ineffective oil transfer booms and indi- cated effects of the spill on wildlife. Ice conditions along rivers in the Pittsburg area were surveyed at the Region's request to aid in contingency planning. REGION IV Preliminary field investigations by a variety of personnel in the fall of 1975 reported widespread plant damage in Mountain View, Georgia, underneath flight patterns of aircraft landing and departing from the Atlanta International Airport. There were also numerous complaints by local residents about unproductive plant growth and soil sterility. Pathological analysis of plant specimens collected in October 1975 indicated that the observed damage was similar to that caused by acid-behaving compounds. An investigation was initiated at the Region's request to determine the extent, source, and cause of this plant damage. During January 1976, large numbers of soil samples were collected in the vicinity of the Atlanta International Airport. They were examined for jet fuel residue, microbial activity, germination capability, and plant growth potential. No fuel residues were found and no other abnormalities were detected in these soils. Experimental vegetation plots were established and sown with seven species of cultivated garden plants commonly used to indi- cate various types of air pollutants at selected sites in Mountain View. These plants, in addition to other native and cultivated species collected in the immediate vicinity, showed no growth abnormalities nor any physical damage. Also, analysis of these plant tissues did not indicate the presence of fuel residues of any other petroleum-based compounds that had been deposited on or incorporated into the tissues by root absorption. Fumigation studies in the laboratory using a variety of plant species did show that jet fuels could produce injuries to the foliar portions. These injuries, which were observed within a relatively short time after exposure, were similar to those observed on the vegetation growing in Mountain View in 1975. 20 ------- Investigations concerning the identification and residence time of fuels in soils showed that jet fuel could readily be differentiated from gasoline and diesel fuel by gas chromato- graphy, but was similar in many respects to fuel oils. After deposition on soils, the residence times for most of the fuels tested are relatively long as fuel identification was readily made after a 5-week period. Results also indicated that jet fuels are relatively immobile once they are incorporated in the soil; tests showed that the vertical movement of jet fuels in the soil profile is minimal. Air monitoring at 11 different locations throughout Mountain View using high-volume Gelman-Tempest air samplers showed the presence of the jet fuels, AF001 and DM-12. The presence of these fuels at each of the sampling sites occurred intermittently over the 5-month sampling period with the greatest length of exposure occurring directly under the flight paths. The site of highest fuel exposure in 1976 was also located in the same area where the greatest amount of plant damage occurred in 1975. Results of a supporting ambient air monitoring study showed that the Federal guidelines for hydrocarbons were exceeded 95% of the time in late spring of 1976, but that Federal nitrogen diox- ide and carbon monoxide standards were not exceeded. This condi- tion was believed to be the result of uncombusted fuel. In Alabamasurveys were conducted to determine the extent of residual naptha from barge spills into the Mobile River and into the Black Warrior River. Photographic imagery depicting population density and land use in Guilford County, North Carolina, was provided to the Region. EPA REGION V Historical and new imagery were used to determine trends in beach erosion before and after construction of a power plant and breakwater in Eastlake, Ohio. In support of the SPCC, reports were prepared on oilfield storage facilities in southern Illinois. The reports included data on fuel capacity, containment provisions, height of revet- ments and indications of spill. EPA REGION VI An air photo documentary of a dike break in an Uranium mil1 waste lagoon in Grants, New Mexico, was completed. Also a survey was completed to verify and provide a positive record of flow in an intermittent stream resulting from industrial discharges into Whitewater Creek. 21 ------- Descriptions were provided of a probable source of salt water which contaminates a lake in Hamlin, in west Texas. EPA REGION VII An aerial survey was conducted to locate and determine the safety of oil barges locked into ice jams along 30 miles of the Mississippi River. Also in Region VII, a power plant thermal survey was com- pleted. Two separate coverages were performed to determine whether two nuclear and one fossil fuel power plants are exceed- ing mixing zone limitations specified in their National Pollutant Discharge Elimination System permits. EPA REGION VIII Color and color infrared imagery of 90 strip mines in the western United States were provided to the Region. Other surveys conducted in the Region include: a land use analysis of agriculture activity which was depicted on overlays to quad maps. • a determination of harvest practices and other silvicul- ture activities and their effects on surrounding areas. Data include indications of stream channel stability, sediment turbidity, temperature change. • a bulk oil storage inventory and description of potential spill conditions, and an outfall inventory to determine non-filer discharges. At the request of the Region and the North Dakota State Water Commission, land use information was collected in the Devil's Lake Basin to be used in developing a comprehensive water resource plan. The special Water Quality Study of Lake Powell and the San Juan River is nearing completion. The third and final sampling effort was conducted in March. The final report is scheduled for July 1. This study was initiated at the request of Region VIII to help assess the impact of present and proposed energy resources development in the Four Corners area upon the river and the Lake Powell area by establishing baseline water quality data and defining major pollutant source areas. At the request of Region VIII, an off-site evaluation of the U.S. Geodetic Survey Central Laboratory at Denver, Colorado, was performed by personnel of the Environmental Monitoring and Support 22 ------- Laboratory-Corvallis and the Las Vegas Laboratory on January 10 through 12. The evaluation included staffing, facilities, equip- ment, quality assurance program responsibilities, and general laboratory operations. The radiological portion of the on-site evaluation was conducted by Mr. David G. Easterly of the Las Vegas Laboratory. EPA REGION IX The Laboratory performed 115 analyses of lead in gasoline in support of Region IX. An SPCC reconnaissance of the San Francisco Bay area was conducted and a survey of activity at the Kennecott copper smelter in Nevada was completed. EPA REGION X A pre-certification briefing was conducted by the Quality Assurance personnel of the Laboratory for State personnel from EPA Region X on January 11 and 12. The briefing covered the Interim Drinking Water Regulations, how these regulations will be implemented, and the respective roles of the EPA and the States. The Laboratory certification criteria and procedures and how they would be used in implementing the Interim Drinking Water Regula- tions were also discussed. The methodologies for the determina- tion of gross alpha and beta activities, tritium, strontium-90, radium-226, and radium-228 in environmental waters were described along with the instrument systems needed and their associated costs and physical requirements. In addition, the standards and the laboratory evaluation procedures needed which are available from the Las Vegas Laboratory were itemized. EPA PUBLICATIONS El-Sheikh, A. S., G. A. Abdel-Kader, S. 0. Amin, and R. E. Stanley. "Pulmonary Cell Populations in Hamsters Maintained Under Egyptian Laboratory Conditions." EPA-600/3-77-006. Quality Assurance Branch. "Environmental Radioactivity Laboratory Intercomparison Studies Program: FY-1977." EPA-600/4-77-001. Rogers, R. D. "Abiological Methylation of Mercury in Soil." EPA-600/3-77-007. 23 ------- PAPERS PRESENTED OR PUBLISHED The following EMSL-LV papers were presented at the Nevada Applied Ecology Group (NAEG) Plutonium Information Conference held at the Marina Hotel in Las Vegas, Nevada, on March 3, 1977: "Transuranics in Crops Grown at Ground Zero, Area 13, Nevada Test Site," by Frederick H. F. Au, Verr D. Leavitt, Werner F. Beckert, and J. Craig McFarlane. "The Solubility of Neptunium-234 in an Artificial Rumen and Simulated Bovine Gastrointestinal Fluids," by Julius Barth. "Plutonium Retention in Dairy Cows Following Ingestion of Either In Vitro or In Vivo Labeled Milk," by William W. Sutton, Robert G. Patzer, Paul B. Hahn, and Gilbert D. Potter. "Comparisons of Curium-243 and Plutonium-238 Biological Transport in Dairy Animals Following Intravenous Injection," by Robert G. Patzer, William W. Sutton, Anita A. Mullen, Stephen R. Lloyd, Robert E. Mosley, Gilbert D. Potter, and Robert G. Patzer. "Actinide Concentrations in Tissues from Cattle Grazing a Contaminated Range," by Donald D. Smith and David E. Bernhardt, "Environmental Plutonium Levels near the Nevada Test Site," by Wayne A. Bliss and Frank M. Jakubowski. The following EMSL-LV paper was presented at the 1977 Oil Spill Conference in New Orleans, Louisiana, March 7-10, 1977: "The Detection and Mapping of Oil on a Marshy Area by a Remote Luminescent Sensor," by J. Craig McFarlane. 24 ------- ENVIRONMENTAL MONITORING AND SUPPORT LABORATORY P.O. BOX 15027 • 944 EAST HARMON AVENUE • LAS VEGAS. NEVADA 89114 TELEPHONE (702)736-2969 • FTS 595-2969 DIRECTOR G 0 MORGAN DEPUTY DIRECTOR (VACANT) INFORMATION SERVICES STAFF G.S. DOUGLAS MONITORING SYSTEMS DESIGN AND ANALYIS STAFF E.SCHUCK TENANT ORBANIZATIONS OFFICE OF PROGRAM MANAGEMENT AND SUPPORT W E PETRIE BRANCHES; GENERAL SERVICES M. CARPENTER COMPUTER SERVICE8 G. ALLISON FACILITIES AND ENGINEERING SERVICES R. COULTER HEALTH AND SAFETY STAFF D«. M.E. KAYE OFFICE OF RADIATION PROGRAMS. LAS VEGAS FACILITY D.W HENDRICKS MONITORING SYSTEMS RESEARCH AND DEVELOPMENT DIVISION OR. R E STANLEY. ACTG. BRANCHES: METHODS DEVELOPMENT AND ANALYTICAL SUPPORT E. BRETTHAUER DUALITY ASSURANCE A IADI/IC POLLUTANT PATHWAYS DR. G. WiERSMA EXPOSURE/DOSE ASSESSMENT DR. G POTTER FARM AND ANIMAL INVESTIGATION DR D.SMITH MONITORING OPERATIONS DIVISION DT WfiUBLE BRANCHES: WATER AND LAND 5UAUTY V. LAMBOU AIR QUALITY R EVANS ENVIRONMENTAL RADUTDN C. COSTA AIRCRAFT OPERATIONS C. DROPP REMOTE SENSING DIVISION DR. S.H. MELFI BRANCHES: REMOTE SENSING OPERATIONS R. LANDERS, ACTG. REMOTE MONITORING METHODS J. ECKERT ENVIRONMENTAL PHOTOGRAPHIC INTERPRETATION COMPLEX V. WEBB REGIONAL SERVICES STAFF R.E. JAOUISH LAS VE6AS ACCOUNTING OFFICE LA. DEMERS PERSONNEL OFFICE LAS VEGAS A. SANDOVAL. JR. REGION IX LAS VEGAS UNIT R. 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