Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Buchanan County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
December	2024	0.143	1
November	2024	0.151	3
October	2024	0.155	4
September	2024	0.266	3
August	2024	0.119	6
July	2024	0.120	7
		Total:	24

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.141	65
2023	0.130	88
2022	0.122	140
2021	0.115	106
2020	0.130	90
2019	0.124	86
2018	0.120	90
2017	0.123	103
2016	0.110	89
2015	0.123	78
2014	0.132	74
2013	0.105	100
2012	0.124	124
2011	0.140	88
2010	0.103	52

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.136	56
2009	0.133	111
2008	0.152	99
2007	0.135	103
2006	0.123	102
2005	0.127	109
2004	0.122	53
2003	0.141	48
2002	–	0
	Total:	681

* 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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