The objective of this study is to analyze the alluvial aquifer of the Chikaskia River to determine the potential for additional groundwater resources for the Tonkawa Tribe’s water supply. This investigation will examine the depth, lithology, hydraulic properties, and general water quality of the Chikaskia River alluvial aquifer.

Oklahoma-Texas Water Science Center

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June 9, 2017

Tonkawa Tribe Groundwater Survey

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January 26, 2022

Trevisan, A.R., Paizis, N.C., 2021, MODFLOW-NWT model used for the simulation of the Cimarron River Alluvial Aquifer in the Pawnee Nation Jurisdictional Area in Payne County, OK, 2016-17

A three-dimensional, finite-difference MODFLOW 2005 groundwater model using the Newton formulation solver (MODFLOW-NWT) was created for the Cimarron River alluvial aquifer in Payne County, north-central Oklahoma to assess the effects of current groundwater withdrawal rates with respect to current and future groundwater availability and on base flow in the Cimarron River. To better understand curre

Oklahoma-Texas Water Science Center

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August 25, 2023

Hydrogeology and simulated groundwater availability in reaches 3 and 4 of the Washita River aquifer, southern Oklahoma, 1980–2017

The 1973 Oklahoma Groundwater Law (Oklahoma Statutes §82–1020.5) requires that the Oklahoma Water Resources Board conduct hydrologic investigations of the State’s aquifers to determine the maximum annual yield for each groundwater basin. Because more than 20 years have elapsed since the final order was issued, the U.S. Geological Survey, in cooperation with the Oklahoma Water Resources Board, cond

Authors

Ian M.J. Rogers, S. Jerrod Smith, Nicole C. Gammill, Natalie J. Gillard, Kayla A. Lockmiller, Evin J. Fetkovich, Jessica S. Correll, Sean P. Hussey

Oklahoma-Texas Water Science Center

December 6, 2021

Load estimation and trend analysis for nitrogen, phosphorus, and suspended sediment in the Eucha-Spavinaw drainage area, northeastern Oklahoma and northwestern Arkansas, 2011–18

Lake Eucha is a source of water for public supply and recreation for the residents of Tulsa and other municipalities in northeastern Oklahoma. Beaty Creek and Spavinaw Creek flow into Lake Eucha and drain about 388 square miles of agricultural and forested land in northeastern Oklahoma and northwestern Arkansas. Beginning in the 1990s, eutrophication of Lake Eucha characterized by excessive algal

Authors

Nicole Paizis, Carol Becker, Kayla A. Lockmiller

Oklahoma-Texas Water Science Center

October 5, 2021

Cimarron River alluvial aquifer hydrogeologic framework, water budget, and implications for future water availability in the Pawnee Nation Tribal jurisdictional area, Payne County, Oklahoma, 2016–18

The Cimarron River is a free-flowing river and is a major source of water as it flows across Oklahoma. Increased demand for water resources within the Cimarron River alluvial aquifer in north-central Oklahoma (primarily in Payne County) has led to increases in groundwater withdrawals for agriculture, public, irrigation, industrial, and domestic supply purposes. The Pawnee Nation of Oklahoma (Pawne

Authors

Nicole Paizis, A.R. Trevisan

Oklahoma-Texas Water Science Center

March 15, 2021

Hydrogeology and model-simulated groundwater availability in the Salt Fork Red River aquifer, southwestern Oklahoma, 1980–2015

The 1973 Oklahoma Water Law (82 OK Stat § 82-1020.5) requires that the Oklahoma Water Resources Board (OWRB) conduct hydrologic investigations of the State’s groundwater basins to support a determination of the maximum annual yield for each groundwater basin (hereinafter referred to as an “aquifer”). The maximum annual yield allocated per acre of land is known as the equal-proportionate-share (EPS

Authors

S. Jerrod Smith, John H. Ellis, Nicole Paizis, Carol Becker, Derrick L. Wagner, Jessica S. Correll, R. Jacob Hernandez

Oklahoma-Texas Water Science Center