Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Louisa County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
January	2024	0.145	3
December	2023	0.093	6
November	2023	0.118	7
October	2023	0.000	1
		Total:	17

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.145	3
2023	0.120	43
2022	0.119	20
2021	0.133	46
2020	0.130	51
2019	0.149	56
2018	0.124	49
2017	0.138	35
2016	0.156	27
2015	0.141	49
2014	0.154	51
2013	0.137	53
2012	0.105	104
2011	0.141	138
2010	0.080	38

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.115	36
2009	0.128	57
2008	0.146	61
2007	0.143	77
2006	0.138	79
2005	0.140	87
2004	0.144	68
2003	0.150	8
2002	0.159	25
	Total:	498

* 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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