Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Lyon County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
November	2024	0.091	1
October	2024	0.159	3
August	2024	0.077	6
July	2024	0.109	7
June	2024	0.358	1
May	2024	0.184	6
		Total:	24

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.139	30
2023	0.139	55
2022	0.143	54
2021	0.139	52
2020	0.150	58
2019	0.121	44
2018	0.144	56
2017	0.123	37
2016	0.136	35
2015	0.125	49
2014	0.130	45
2013	0.142	65
2012	0.139	34
2011	0.139	61
2010	0.130	15

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.149	24
2009	0.155	44
2008	0.141	40
2007	0.122	52
2006	0.126	54
2005	0.123	58
2004	0.143	42
2003	0.130	64
2002	0.130	59
	Total:	437

* 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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