ARCHIVED REPORTS_1988_2 - Laserfiche WebLink

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STAFF EXPERIENCE In 1987 CCAS has undertaken the analysis of landfill gases and ambient air samples at a number of domestic landfills in the western United States. These analyses have involved fixed gases, methane/non-methane hydrocarbons, halogenated solvents, refrigerants and hydrocarbons. In those cases in which Calderon testing was involved, most of the listed compounds were found in most of the samples. CCAS detection limits are generally well below those which are considered necessary for compliance. In 1985 and 1986, Central Coast Analytical Services participated in a major sampling and analysis program at Cosmalia Resources. Sulfur -containing organics, aromatics, chlorinated solvents, ketones and a variety of hydrocarbons were monitored at levels ranging from 0.02 to several thousand ppbv. These data were reviewed and accepted by the county, the state, EPA and the site owner even though the separate parties sampling was a major aspect of the project. The logical relationship of the data was a major strength of the project. had very different points of view regarding the interpretation of the results. Ancillary data from treatment processes, waste materials and groundwater samples were all mutually reinforcing. Since then a second hazardous waste site has been studied. This other site accepted many materials in common, thereby providing our project team with valuable experience directly relevant to, the task at hand. For example, several waste impondments covered with crude oil were present. Upwind/downwind sampling was a major aspect of the project. The logical relationship of the data was a major strength of the project. 0 In 1986, stock emissions of an unusual and difficult nature were monitored by CCAS at a "Fortune 500" manufacturing facility. In this case, special care was required in the transfer of only slightly volatile components from the sampling container to the analytical instrumentation. In 1985, CCAS monitored ambient air for sulfur gases and hydrocarbons as part of a major study performed for another "Fortune 500" company. Documentation was provided regarding levels near natural and anthropogenic sources under a variety of weather conditions. An on-going program for the monitoring of sulfur -containing organics, chlorinated hydrocarbons, and aromatic hydrocarbons has been in progress for more than a year in Santa Barbara county. In 1978 Dr. Stephen Havlicek managed a project for the Georgia Department of Natural Resources which involved the analysis of ambient air samples for trace organics (Havlicek, 1981). Samples were tranferred from Teflon bags to the head of a support -coated open tubular column for gas chromatographic separation prior to analysis by mass spectrometry. The transfer mechanism involved the use of a six -port valve, a vacuum reservoir and a freezeout loop much like the one illustrated earlier in figure 1. More recently, Dr. Stephen Havlicek managed a project which required the analysis of synfuels stock gases collected on charcoal tubes (Havlicek, 1982). The tubes were double sealed on site since air 0