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Quality assurance project plan for development of dissolved oxygen wasteload allocation for the Canadian River from US Highway 81 near Union City, Oklahoma to confluence of Buckhead Creek near Wayne, Oklahoma

ACOG_Canadian_River_DO_WLA_Final_QAPP_01-21-2010 1

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Okla State Agency	ACOG (Association of Central Oklahoma Governments)
Okla Agency Code	'ACO'
Title	Quality assurance project plan for development of dissolved oxygen wasteload allocation for the Canadian River from US Highway 81 near Union City, Oklahoma to confluence of Buckhead Creek near Wayne, Oklahoma
Alternative title	QAPP for Canadian River dissolved oxygen WLA
Authors	C.H. Guernsey and Company. Association of Central Oklahoma Governments.
Publisher	ACOG
Publication Date	2009-12-11
Publication Type	Planning Document Technical Reports
Subject	Water quality management--Oklahoma--North Canadian River Watershed. Water--Pollution--Total maximum daily load--Oklahoma--North Canadian River Watershed. North Canadian River Watershed (Okla.)
Purpose	There are 13 point source facilities with oxygen demanding effluent whose discharges go either directly to this portion of the river or into a tributary within several miles of the river. Some of these discharges have permit limits that are based on meeting the less stringent DO criteria for a habitat limited aquatic community. DEQ is concerned that current permit limits may not be protective of the more stringent DO criteria for a warm water aquatic community. This resulted in the need for water quality modeling to be performed to simulate these discharges under critical conditions and determine appropriate permit limits. Previous water quality modeling of DO in the Canadian River was developed in the mid-1990s (CDM 1996), but DEQ has concerns about that modeling and it was never intended to be used to simulate the entire length of the river from the US Highway 81 Bridge to the confluence of Buckhead Creek (it was developed for the portion of the river between the Interstate 35 Bridge near Norman and the US Highway 77 Bridge between Lexington and Purcell). Therefore, a new water quality model for DO needs to be developed and field data need to be collected to calibrate and verify the model. Without field data, the model results would have large uncertainty and might lead to permit limits that are either 1) not stringent enough to protect water quality in the river or 2) more stringent than necessary, possibly causing unneeded upgrades to wastewater treatment systems. There are no regulations that impose quantitative requirements for uncertainty in this type of modeling, but it is a universally accepted fact that using field data reduces model uncertainty. The results from this project will be used by DEQ to establish permit limits for point source discharges based on the limits that will be recommended in this project.
OkDocs Class#	A3200.3 Q1d 2009
Digital Format	PDF, Adobe Reader required
ODL electronic copy	Downloaded from agency website: http://www.acogok.org/Websites/acogok/images/Downloads2014/Water/Canadian_River_Progress_Reports/ACOG_Canadian_River_DO_WLA_Final_QAPP_01-21-2010.pdf
Rights and Permissions	This Oklahoma state government publication is provided for educational purposes under U.S. copyright law. Other usage requires permission of copyright holders.
Language	English
Date created	2014-05-05
Date modified	2014-05-05
OCLC number	890231430

Title	ACOG_Canadian_River_DO_WLA_Final_QAPP_01-21-2010 1
Date created	2014-05-05
Date modified	2014-05-05

Quality assurance project plan for development of dissolved oxygen wasteload allocation for the Canadian River from US Highway 81 near Union City, Oklahoma to confluence of Buckhead Creek near Wayne, Oklahoma

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