Revision History for SIR 2013-5219 Shana L. Mashburn, Derek W. Ryter, Christopher R. Neel, S. Jerrod Smith, and Jessica S. Magers Hydrogeology and Simulation of Groundwater Flow in the Central Oklahoma (Garber-Wellington) Aquifer, Oklahoma, 1987 to 2009, and Simulation of Available Water in Storage, 2010–2059 ----------------------------------------------------- Posted online February 10, 2014 ----------------------------------------------------- Revised and reposted April 2018, version 1.1 The text version was modified. In the table of contents, an extra apostrophe was removed from the caption of figure 12. On page 20, figure 12 was modified as follows: Replaced the raster image. Replaced the explanation. Changed the date in the explanation from 2000 to 2009. On page 20, the first full paragraph was changed to "The saturated thickness of the Central Oklahoma aquifer in the eastern part of the aquifer in Lincoln and Pottawatomie counties is relatively thin, 200–300 feet, related to the thinner geologic units in that area that are caused by the dip of the formations and erosion (fig. 12). The thickest zone of saturation is about 920 feet located near 35°25' latitude and 97°25' longi- tude (near Tinker Air Force Base, location shown on figure 1) along the extent of the Hennessey Group confining unit that allows freshwater recharge just to the east of the Hennessey Group extent and coincides with the deepest part of the base of freshwater (fig. 11) and the areas of higher percent sand in the aquifer (described in the Hydrogeologic Framework section of this report). The saturated thickness near 35°50' latitude and 97°05' longitude in another relatively thick p rt of the aquiferin northwest Lincoln County is about 650 ft." ----------------------------------------------------- Revised and reposted October 2019, version 2.0 The text version was modified. On the title page and page 1, changes the last author's name from Jessica S. Magers to Jessica S. Correll. Throughout the report, changed all instances of "2 (acre-feet/acre)/year" to 2.0 (acre-feet/acre)/year." On page 2 at the end of the paragraph beginning "The trannsient groundwater-flow model was constructed..." in the "Introduction section, this text was added: At the end of the transient simulation (2009), the aquifer mean saturated thickness was about 392 feet and the aquifer mean transmissivity was about 1,057 square feet per day. The simulated available water in storage was about 98.676 million acre-feet. On page 65 in the last paragraph of the "Hydraulic Properties" section: Added "and constant for all layers" to the end of the first sentence. Changed the last sentence from "This storage coefficient value was adjusted subsequently for each layer independently for model calibration, keeping a single storage coeffient value per layer." to "This storage coefficient was not adjusted during model calibration." On page 17 at the end of the last paragraph in the "Simulation Results" section, this text was added: At the end of the transient simulation (2009), the aquifer mean saturated thickness was about 392 ft and the aquifer mean transmissivity was about 1,057 square feet per day (table 10). The simulated available water in storage was about 98.676 million acre-ft (table 10). On page 74 in the first sentence in the "Simulation of Available Water in Storage" section, added a citation to "Oklahoma Water Resources Board, 2010." On page 75, added a new table 10, which shifted remaining content by 1 page. On page 78 (used to be page 77), changed callout "table 10" to "table 11." On page 80 (used to be page 79), changed the table number from 10 to 11. On page 84 (used to be page 83) at the end of the first paragraph, added this text: At the end of the transient simulation (2009), the aquifer mean saturated thickness was about 392 feet and the aquifer mean transmissivity was about 1,057 square feet per day. The simulated available water in storage was about 98.676 million acre-feet. -----------------------------------------------------