Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 7 of 7

Full-Text Articles in Physical Sciences and Mathematics

Beaver Lake Numeric Chlorophyll-A And Secchi Transparency Standards, Phases Ii And Iii: Uncertainty And Trend Analysis, J. Thad Scott, Brian E. Haggard, Zachary Simpson, Matthew Rich Oct 2016

Beaver Lake Numeric Chlorophyll-A And Secchi Transparency Standards, Phases Ii And Iii: Uncertainty And Trend Analysis, J. Thad Scott, Brian E. Haggard, Zachary Simpson, Matthew Rich

Technical Reports

The objective of Phases II and III of this study were to 1) assess the variation in chl‐a and ST across multiple spatial and temporal scales in Beaver Lake in order to validate the assessment method, and 2) quantify trends in chl‐a, ST, and nutrient (total phosphorus and total nitrogen) concentrations in Beaver Lake and the major inflowing rivers to verify any potential water quality impairment.


Database Analysis To Support Nutrient Criteria Development (Phase Ii), B. E. Haggard, M.A. Evans-White, L.B. Massey, E.M. Grantz Oct 2016

Database Analysis To Support Nutrient Criteria Development (Phase Ii), B. E. Haggard, M.A. Evans-White, L.B. Massey, E.M. Grantz

Technical Reports

The intent of this publication of the Arkansas Water Resources Center is to provide a location whereby a final report on water research to a funding agency can be archived. The Texas Commission on Environmental Quality (TCEQ) contracted with University of Arkansas researchers for a multiple year project titled “Database Analysis to Support Nutrient Criteria Development”. This publication covers the second of three phases of that project and has maintained the original format of the report as submitted to TCEQ. This report can be cited either as an AWRC publication (see below) or directly as the final report to TCEQ.


Database Analysis To Support Nutrient Criteria Development (Phase I), B. E. Haggard, J.T. Scott, M.A. Evans-White Oct 2016

Database Analysis To Support Nutrient Criteria Development (Phase I), B. E. Haggard, J.T. Scott, M.A. Evans-White

Technical Reports

The intent of this publication of the Arkansas Water Resources Center is to provide a location whereby a final report on water research to a funding agency can be archived. The Texas Commission on Environmental Quality (TCEQ) contracted with University of Arkansas researchers for a multiple year project titled “Database Analysis to Support Nutrient Criteria Development”. This publication covers the first of three phases of that project and has maintained the original format of the report as submitted to TCEQ. This report can be cited either as an AWRC publication (see below) or directly as the final report to TCEQ.


Database Analysis To Support Nutrient Criteria Development (Phase Iii), J. T. Scott, E.M. Grantz Oct 2016

Database Analysis To Support Nutrient Criteria Development (Phase Iii), J. T. Scott, E.M. Grantz

Technical Reports

The intent of this publication of the Arkansas Water Resources Center is to provide a location whereby a final report on water research to a funding agency can be archived. The Texas Commission on Environmental Quality (TCEQ) contracted with University of Arkansas researchers for a multiple year project titled “Database Analysis to Support Nutrient Criteria Development”. This publication covers the third of three phases of that project and has maintained the original format of the report as submitted to TCEQ. This report can be cited either as an AWRC publication (see below) or directly as the final report to TCEQ.


Bella Vista Lakes Project: Fertility Management, J. Thad Scott Jun 2016

Bella Vista Lakes Project: Fertility Management, J. Thad Scott

Technical Reports

No abstract provided.


Dissolved Oxygen Monitoring In Kings River And Leatherwood Creek, Eric Cummings, Erin E. Scott, Marty Matlock, Brian E. Haggard Mar 2016

Dissolved Oxygen Monitoring In Kings River And Leatherwood Creek, Eric Cummings, Erin E. Scott, Marty Matlock, Brian E. Haggard

Technical Reports

The Clean Water Act (CWA) establishes the basic structure used to regulate water quality. Under the CWA, States are required to assess water bodies relative to water‐quality standards and designated beneficial uses and then to submit lists of impaired bodies every other year to the US Environmental Protection Agency (USEPA). In 2015, at least 4,800 water bodies were listed as impaired by dissolved oxygen across the US (USEPA, 2015). Aquatic species like fish and macroinvertebrates depend on adequate dissolved oxygen for survival. Low dissolved oxygen can lead to fish kills, reduced aquatic diversity, and nuisance smells from anaerobic conditions – …


Constituent Loads And Trends In The Upper Illinois River Watershed And Upper White River Basin, Erin E. Scott, Zach P. Simpson, Brian E. Haggard Jan 2016

Constituent Loads And Trends In The Upper Illinois River Watershed And Upper White River Basin, Erin E. Scott, Zach P. Simpson, Brian E. Haggard

Technical Reports

Water chemistry can greatly influence the quality of surface waters and affect the ability for streams and rivers to meet their designated use(s). In Arkansas, many streams and rivers were placed on the 2008 303(d) list of impaired water bodies due to excess levels of nutrients, chlorides, sulfates, and sediments (ADEQ, 2008). These constituents continue to be listed as the potential cause for water‐quality impairments through the most recent draft 303(d) list (ADEQ, 2014). The Arkansas Non‐Point Source (NPS) Management Program wants to reduce poll‐ utant loading from the landscape and improve water quality, where funding for projects is targeted …