The Annals of Iowa, Winter 2010, Vol. 69, no. 1

A quarterly journal of Iowa authors and their works produced by State Historical Society of Iowa.

The Annals of Iowa, Winter 2011, Vol. 70, no. 1

A quarterly journal of Iowa authors and their works produced by State Historical Society of Iowa.

The Annals of Iowa, Winter 2012, Vol. 71, no. 1

A quarterly journal of Iowa authors and their works produced by State Historical Society of Iowa.

The Annals of Iowa, Winter 2013, Vol. 72, no. 1

A quarterly journal of Iowa authors and their works produced by State Historical Society of Iowa.

CIRAS News, Winter 2016, Vol. 51, no. 2

CIRAS is to enhance the performance of Iowa industry, and associated entities, through education and technology-based services. This newsletter holds information regarding these services.

The Annals of Iowa, Winter 2014, Vol. 73, no. 1

A quarterly journal of Iowa authors and their works produced by State Historical Society of Iowa.

Practical Data Collection: Establishing Methods and Procedures for Measuring Water Clarity and Turbidity of Storm Water Run-Off from Active Major Highway Construction Sites, 2014

In anticipation of regulation involving numeric turbidity limit at highway construction sites, research was done into the most appropriate, affordable methods for surface water monitoring. Measuring sediment concentration in streams may be conducted a number of ways. As part of a project funded by the Iowa Department of Transportation, several testing methods were explored to determine the most affordable, appropriate methods for data collection both in the field and in the lab. The primary purpose of the research was to determine the exchangeability of the acrylic transparency tube for water clarity analysis as compared to the turbidimeter.