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As authorized under the Arizona Water Settlements Act of 2004, the San Carlos and Irrigation Drainage District (SCIDD) is undertaking a 10-year rehabilitation project of its irrigation system. SCIDD is the non-Indian irrigation component of the San Carlos Irrigation Project (SCIP), which provides irrigation water to the communities of Florence, Coolidge, and Casa Grande in Pinal County, Arizona. Phase 2 of this project includes modification of the canal by widening segments of Reaches 1, 2, and 3 and lining those segments of the canal with concrete. In 2013, the Bureau of Reclamation, Phoenix Area Office (Reclamation) directed Archaeological Consulting Services, Ltd. (ACS) to conduct a Class III inventory of the project alignment and prepare a treatment plan for eligibility testing at two sites (AZ U:15:5[ASM] and AZ U:15:47[ASM]), Phase 1 data recovery at three sites (Florence Ruin/AZ U:15:124[ASM], AZ U:15:663[ASM], and AZ U:15:678[ASM]/AZ U:15:5[ARS]) (Gregory et al. 2014b), and archival research was for three sites (Florence Canal/AZ AA:3:211[ASM]; a wagon road/AZ U:15:665[ASM]; and a historic structure/AZ U:15:666[ASM]). Two sites, AZ AA:3:215(ASM)/Florence-Casa Grande Canal and AZ U:15:676(ASM)/AZ U:15:1(REC), had been previously mitigated. No further work was required for AZ AA:3:215(ASM)/Florence-Casa Grande Canal, but limited boundary testing was recommended within the expanded site boundary of U:15:676(ASM)/AZ U:15:1(REC). No features were identified at AZ U:15:5(ASM), AZ U:15:47(ASM), Florence Ruin/AZ U:15:124(ASM), or AZ U:15:678(ASM). Seventeen features were identified at AZ U:15:663(ASM) during Phase 1 data recovery. One feature, a cremation, was identified at AZ U:15:676(ASM). Because potentially significant subsurface features were discovered at AZ U:15:663(ASM), a targeted Phase 2 data recovery effort is recommended. In addition, because human remains were identified at AZ U:15:676(ASM), Phase 2 data recovery is recommended, as well as archaeological monitoring during ground disturbing activities associated with the project. At the request of Reclamation, a Phase 2 treatment plan was prepared as part of this document. The results of the archival research associated with the Florence Canal (AZ AA:3:211[ASM]), a wagon road (AZ U:15:665[ASM]), and a historic structure (AZ U:15:666[ASM]), as well as artifact analyses from Phase 1 investigations, are also included in this report. This is the report. The photo log and the contact sheets can be found at tDAR ID: 406058. The ceramic analysis data can be found at tDAR ID: 406059. The faunal analysis data can be found at tDAR ID: 406060. The lithic analysis data can be found at tDAR ID: 406061. The shell analysis data can be found at tDAR ID: 406062.

CenturyLink recently conducted utility work in Phoenix, Maricopa County, Arizona. The project occurs on municipal land; however, as it was a private utility replacement, it was not reviewed by the City Archaeology Office (CAO) prior to the commencement of work, nor was a standard Archaeology Assessment issued for the project. The project area falls within the boundaries of AZ T:12:37(ASM)/Casa Buena, a Hohokam habitation site known to contain a platform mound, trash mounds, and human remains. A local resident and avocational archaeologist notified the CAO that he had observed artifacts within the open project excavations. The resident collected a box of artifacts from open excavations that he turned over to Pueblo Grande Museum (PGM). The CAO determined that the utility work occurred within a trash mound at Casa Buena and identified the need for an archaeological contractor to monitor any remaining work and document the feature and any additional cultural resources identified. Archaeological Consulting Services, Ltd. (ACS) was contacted by Ms. Susan Larison of CenturyLink to provide cultural resource monitoring services. Pursuant to consultation with CAO, it was determined that any additional ground-disturbing activities would be monitored by a qualified archaeological contractor. Because the excavations fall within a trash mound and possible cremation area mapped by Frank Midvale in the 1920s, profiles of the vault and utility trench would also be mapped. Diagnostic artifacts (decorated ceramics and chipped and ground stone tools) collected by the resident and during monitoring would be subject to basic analysis. Working under the terms of Project-Specific Permit No. 2013-107ps and Burial Case No. 2013-039 issued by the Arizona State Museum (ASM), monitoring was conducted by Walter Punzmann on September 25, 2013. No diagnostic artifacts were noted during monitoring, so only those collected by the local resident were analyzed.