Shafter-Wasco Irrigation District had a need to improve the accuracy of their facilities map and create map products that could be used by district employees in the office and field. Provost & Pritchard performed a comprehensive GPS survey of the district´s water delivery facilities. Descriptive attributes of each feature were collected during the survey to help improve the value of the data once it was imported into a GIS. The district provided digital scans of original as-built drawings that were linked to the GIS data for easy retrieval. Photos of groundwater wells were also linked to the digital data. Map books were created for field crews to have large scale facilities maps with them at all times. A poster-sized facilities map was also created for reference use in the district´s office.