This inventory includes emissions of coarse particulate matter <10 µm in diameter (PM10), fine particulate matter < 2.5 µm (PM2.5), nitrogen oxides, sulfur oxides, and ammonia. Emissions are calculated for both Maricopa County and the PM10 nonattaiment area. Annual totals as well as typical daily emissions are provided for all source categories.

Fort Lowell was a supply base for the United States Army “Apache Campaigns” between 1873 and 1891. Following abandonment of the fort in 1891, settlers moved in and used some fort buildings as residences, or stripped the buildings of useful materials. By the 1930s, much of the fort had fallen into disrepair or had been sold off. Eventually, the City of Tucson acquired a large portion of the old fort which became what is today’s “Fort Lowell Park.” A 5.2 acre (“Adkins”) parcel of the former fort containing several original adobe buildings was still in private ownership, and the 2004 County bond election passed a proposal to acquire the land and preserve the historic resources.

To facilitate development of the Environmental Impact Statement which must accompany the Section 10 multi-species conservation proposal, a series of issue papers have been written. This study presents a brief look at outdoor recreation issues and describes the impacts of five alternative permit strategies might have on the County's ability to maintain recreation opportunities.

Survey results for wetland plant communities of the Agua Caliente Park and nearby La Cebadilla property. The study also documented the presence or absence of Huachuca water umbel, a plant listed as endangered in Pima County. By studying the wetland plants of the La Cebadilla property, and through historic herbarium collections, the biologist found that several plants still present at La Cebadilla were known to be present at the Agua Caliente Ranch at the turn of the century.

Describes the relation of the current and proposed system of mountain parks and preserves to the ongoing multi-species conservation planning process. Business interests will be able to pursue land uses which impact habitat, so long as defined conservation standards are met. This report simply frames planning possibilities by outlining the known potential of twelve park and preserve areas in eastern Pima County.