Matching Items (358)
Filtering by

Clear all filters

41249-Thumbnail Image.png
ContributorsPotter, A. F. (Author)
Created1918-01-10
Description

Letter from A. F. Potter to Carl T. Hayden describing John H. Page's request to build a railway for the Canyon Copper Company as "impractical."

43481-Thumbnail Image.png
Created2002-05
Description

This document consists of the attainment demonstration, maintenance plan, and redesignation to attainment request for the Ajo Sulfur Dioxide (SO2) nonattainment area. The purpose of this document is to demonstrate how the area has met the National Ambient Air Quality Standards for SO2 and intends to maintain compliance with the

This document consists of the attainment demonstration, maintenance plan, and redesignation to attainment request for the Ajo Sulfur Dioxide (SO2) nonattainment area. The purpose of this document is to demonstrate how the area has met the National Ambient Air Quality Standards for SO2 and intends to maintain compliance with the NAAQS. Air quality standards are divided into two types: primary standards based on health effects and secondary standards based on environmental effects such as damage to property, plants, visibility, etc. Both standards are established by Environmental Protection Agency for criteria air pollutants such as sulfur dioxide.

42273-Thumbnail Image.png
Created2010-08
Description

This update of the Eric Marcus Municipal Airport Master Plan has been undertaken to evaluate the airport’s capabilities and role, to review forecasts of future aviation demand, and to plan for the timely development of new or expanded facilities that may be required to meet that demand. The ultimate goal

This update of the Eric Marcus Municipal Airport Master Plan has been undertaken to evaluate the airport’s capabilities and role, to review forecasts of future aviation demand, and to plan for the timely development of new or expanded facilities that may be required to meet that demand. The ultimate goal of the master plan is to provide systematic guidelines for the airport’s overall development, operation, and ownership.

42616-Thumbnail Image.jpg
Created2001-10
Description

Provides an inventory of resources in Ajo and western Pima County and land use planning proposals so that the Planning and Zoning Commission and Board of Supervisors have the opportunity to add western Pima County to the Comprehensive Plan as part of the 2001 Plan Update.