The purpose of the ambient air monitoring network is to sample air pollution in a variety of settings, assess the health and welfare effects, and assist in determining sources of air pollution. In general, six basic monitoring objectives and five measuring scales are used to determine the network design. Since it is physically and fiscally impossible to monitor the air in every location, representative samples must be obtained. These samples are determined by using the monitoring objectives and the spatial measurement scales. The network must be dynamic enough to maintain a current representative sample of the air quality. Air quality issues such as eight-hour ozone non-attainment boundaries and permits for new sources are diverse and controversial subjects for the citizens of Maricopa County. With its robust air monitoring network and mobile monitoring tools, the department strives to provide the most reliable and relevant air monitoring data to the public.

To evaluate whether VOCs are migrating out of the landfills into the vadose zone, a soil vapor survey of the soil beneath the landfill bases was performed. Permanent vapor monitoring probes were installed and then sampled twice for VOCs. Groundwater beneath the landfills has been impactd by VOCs, namely TCE, DCE, and toluene.

This Additional Site Characterization Work Plan presents a strategy for collecting site characterization information at the closed Maricopa County Cave Creek Landfill to support ongoing remedial action planning for trichloroethene-impacted groundwater underlying the site. The Work Plan supplements previous remedial investigation work plans prepared to characterize the nature and extent of site contamination.

The Arizona Game and Fish Department held four Wildlife Summits to obtain input from their stakeholders into the development of the Comprehensive Wildlife Conservation Strategy. Stakeholder groups invited to participate in the Summits included Department constituency groups, special interests, local governments, Native American tribes, interagency cooperators, and the general public. This report combines the votes from each of the four Summits into one database for analysis. The results for each individual Summit are attached as separate reports. Comparisons are made in this combined report to show differences between the results of individual Summits. The combined results have also been analyzed to determine if there were any significant differences in opinions of the various stakeholder groups. Demographic breakdowns of the individual Summit results are not included in the separate reports because they would not be statistically valid given the small number of participants at each Summit. Participant comments are included in the
individual Summit reports.

Identifying the primary managers of wildlife habitat can provide one useful type of information for development of Arizona’s Comprehensive Wildlife Conservation Strategy. This can contribute to satisfying at least three of the required elements: #4 (conservation actions and priorities), #5 (monitoring plans), and #7 (coordination). This can be particularly useful in the prioritization of actions and resources.

Toward that end, The Nature Conservancy has compiled relevant information and conducted new analyses from our recent statewide efforts to map and analyze two natural communities, grasslands and forests, and a species group, native fish. The results are presented in three sections, with appendices describing data sources.