Information sources used to digitize the “Irrigated and Dormant Agricultural Lands in Eastern Pima County” .

Report	Source of Information	Agriculture type	Study Boundaries	maps produced
Avra Valley Water Quality and Pollution Source Assessment, 1993	Agricultural Experiment Station  -1943, 1954 and 1963 Arizona Crop and Livestock Report in  Service 1974 Agricultural Stabilization and Conservation Service -1967 ADWR- 1989	Irrigated agriculture, animal impound, and sludge application.	Pinal county- north Tucson and Tortolita mountain- east southern edge of township 16- south surface water drainage divide along Silverbell, Waterman, Roskruge and Coyote Mountains-west	Three maps: Irrigated agricultural areas  1943-1982, north and south. Areas of irrigated agriculture 1988
Metropolitan Tucson Basin Water Quality and Pollution Source Assessment, 1989	Historic irrigated acreage maps - 1947,1963, 1973 and 1974.  Agricultural Experiment Station - 1947, 1963, and 1973 Arizona Crop and Livestock Reporting Service - 1980 These maps were based on aerial photos and field investigations. PAG verified the location of some of this areas using Pima County Planning Department’s aerial photos collection. A map current irrigated land larger than 2 acres in production since 1984 provided by ADWR	Irrigated agriculture and animal impoundments.	Pinal county and Santa Catalina mountain- north Tanque Verde and Rincon mountain -east Santa Rita mountain- south and Santa Cruz river-west	one map: Irrigated Lands and Animal Impoundments.  Cartographed from the different sources between 1937- 1983 Rincon and pantano creak to digitize

Santa Cruz River Alignment Recharge Study, 1985	Cortaro Area Pollution Source Assessment- Task 1, Preliminary Evaluation		Los Reals Rd. to Prince Rd.- north Shannon Rd. And Cardinal Ave - west 6^th Ave -east
Impacts of the Green Valley Wastewater Treatment Facility upon Groundwater Quality, 1986	“Assessment of Nitrate in Groundwater of the Upper Santa Cruz Basin, 1983"		North edge of Green Valley -southwest, I-19-west, Farmer Investment Company FICO, pecan orchards-east, retired irrigated land owned by Anamax Mining Company -south
Cortaro Area Pollution Source Assessment, 1983	Aerial photos interpreted by the office of Arid Lands Studies, The University Of Arizona. Mapped for 10 acres accuracy Literature review, field trips	Active and dormant agriculture	Grant Rd- south piedmont of Tucson Mountain- west Avra Valley Rd.-north Arthur Pack Park extends to Grant Rd.- east.	Land Use Maps for 1936, 1949, 1959, 1969, 1980.  Legend for effluent irrigation, active agriculture and dormant ag.
Assessment of Nitrate in Groundwater of the Upper Santa Cruz Basin, 1983	Aerial used: 1981- Exploration Photography Company 1967- SCS 1958-SCS 1949-SCS 1937-SCS held by USGS	Active agriculture- Include -feedlots, irrigation facilities, feed and silage storage Dormant agriculture- ag land that has not been used in the recent past, indicated by presence of wild shrubs	Santa Rita Mountains -southeast, Tucson and Sierrita Mountains- west.  The study area include Green Valley, Sahuarita, Continental and Arivaca junctions-south	Land use maps: 1936, 1949, 1958, 1967, and 1981

Cortaro Area Pollution Source Assessment- Task 1, Preliminary Evaluation, 1981

Preliminary list was drawn from previous studies, sites were confirmed in field trip and by aircraft flight. A questionnaire was formed and distributed

Feedlots, dairies and irrigated agriculture.

Grant Rd- south piedmont of Tucson Mountain- west Avra Valley Rd.-north Arthur Pack Park extends to Grant Rd.- east.`

Waste Sources and Disposal Sites in the Cortaro Study Area. Include: Irrigated fields, fertilized fields, and animal impounds.

All the Reports were written by Pima Association of Governments (PAG)