Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Black Hawk County

Previous Six Months

Month

Year

Average Alcohol Level
(g/210L)

Number of Tests

August 2020 0.139 17
July 2020 0.161 39
June 2020 0.129 74
May 2020 0.142 47
April 2020 0.122 21
March 2020 0.127 31
 

Total:

229

Year to Date

Year

Average Alcohol Level
(g/210L)

Number of Tests

2020 0.141 305
2019 0.151 518
2018 0.143 520
2017 0.152 541
2016 0.159 514
2015 0.163 636
2014 0.156 721
2013 0.160 999
2012 0.152 1,138
2011 0.152 1,187
2010 0.152 376

DataMaster CDM Historical Data *

Year

Average Alcohol Level
(g/210L)

Number of Tests

2010 0.156 324
2009 0.155 668
2008 0.150 929
2007 0.148 941
2006 0.139 1,001
2005 0.152 961
2004 0.149 916
2003 0.152 706
2002 0.157 529
 

Total:

6,975

* 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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