Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Clayton County

Previous Six Months

Month

Year

Average Alcohol Level
(g/210L)

Number of Tests

May 2019 0.134 4
April 2019 0.110 7
March 2019 0.101 6
February 2019 0.102 7
January 2019 0.107 6
December 2018 0.101 6
 

Total:

36

Year to Date

Year

Average Alcohol Level
(g/210L)

Number of Tests

2019 0.109 30
2018 0.093 75
2017 0.091 98
2016 0.116 75
2015 0.138 68
2014 0.132 91
2013 0.120 92
2012 0.127 136
2011 0.137 125
2010 0.147 38

DataMaster CDM Historical Data *

Year

Average Alcohol Level
(g/210L)

Number of Tests

2010 0.135 60
2009 0.122 124
2008 0.136 121
2007 0.134 77
2006 0.139 91
2005 0.131 132
2004 0.143 87
2003 0.152 74
2002 0.147 68
 

Total:

834

* The DataMaster CDM in use in Iowa from 1999 until 2011 was capable of limited data collection. This section of the website allows users to view the approximate number of tests and the average alcohol concentration of the subject for each county from 2002–2010.

This data is limited to the DataMaster CDM only. Please note, that the data may not be complete. The DataMaster CDM was capable of only holding approximately 175 tests at a time and there were situations that the memory was full and would no longer store tests until it was downloaded. Also, data may have been lost, never stored or cleared from memory prior to a download taking place.

The statistical data includes several subject tests that may have been performed by officers as "practice" and suspects that may have been impaired by substances other than alcohol therefore resulting in a zero breath alcohol result. Eliminating any test that was below 0.010 g/210 L, the statewide average over the past decade has been around 0.147 g/210 L.

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