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Suggested Citation:"Acronyms." National Research Council. 2005. The Science of Instream Flows: A Review of the Texas Instream Flow Program. Washington, DC: The National Academies Press. doi: 10.17226/11197.
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Acronyms


AFY

Acre feet per year


CCEFN

Consensus Criteria for Environmental Flow Needs

cfs

Cubic feet per second

CWA

Clean Water Act


DO

Dissolved oxygen

DTS

Detailed Technical Studies


EPA

United States Environmental Protection Agency

ESA

Endangered Species Act


FERC

Federal Energy Regulatory Commission

FIFS

Framework for Instream Flow Studies


GIS

Geographical information system


HSC

Habitat suitability criteria


IBI

Index of Biotic Integrity

IFC

Instream Flow Council

IFIM

Instream Flow Incremental Methodology

ISF

Instream flow

IHA

Indicators of Hydrologic Alteration

ITA

Initial Technical Assessment


LCRA

Lower Colorado River Authority

LWD

Large woody debris


NPDES

National Pollution Discharge Elimination System

NRC

National Research Council


PHABSIM

Physical Habitat Simulation Approach

PWP

Programmatic Work Plan


QA

Quality assurance

QC

Quality control


SWFWMD

Southwest Florida Water Management District


TCEQ

Texas Commission on Environmental Quality

TMDL

Total maximum daily load

TNRCC

Texas Natural Resources Conservation Commission

TOD

Technical Overview Documents

TPDES

Texas Pollutant Discharge Elimination System

TPWD

Texas Parks and Wildlife Department

Suggested Citation:"Acronyms." National Research Council. 2005. The Science of Instream Flows: A Review of the Texas Instream Flow Program. Washington, DC: The National Academies Press. doi: 10.17226/11197.
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TSS

Total suspended solids

TWDB

Texas Water Development Board


USACE

United States Army Corps of Engineers

USGS

United States Geological Survey


WAM

Water Availability Model

Suggested Citation:"Acronyms." National Research Council. 2005. The Science of Instream Flows: A Review of the Texas Instream Flow Program. Washington, DC: The National Academies Press. doi: 10.17226/11197.
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Page 135
Suggested Citation:"Acronyms." National Research Council. 2005. The Science of Instream Flows: A Review of the Texas Instream Flow Program. Washington, DC: The National Academies Press. doi: 10.17226/11197.
×
Page 136
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Across the United States, municipalities, counties, and states grapple with issues of ensuring adequate amounts of water in times of high demand and low supply. Instream flow programs aim to balance ecosystem requirements and human uses of water, and try to determine how much water should be in rivers. With its range of river and ecosystem conditions, growing population, and high demands on water, Texas is representative of instream flow challenges across the United States, and its instream flow program may be a model for other jurisdictions. Three state agencies—the Texas Water Development Board (TWDB), the Texas Parks and Wildlife Department (TPWD), and the Texas Commission on Environmental Quality (TCEQ)—asked a committee of the National Research Council (NRC) to review the Programmatic Work Plan (PWP) and Technical Overview Document (TOD) that outline the state’s instream flow initiative. The committee suggested several changes to the proposed plan, such as establishing clearer goals, modifying the flow chart that outlines the necessary steps for conducting an instream flow study, and provide better linkages between individual studies of biology, hydrology and hydraulics, physical processes, and water quality.

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