Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Davis County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
March	2024	0.053	2
February	2024	0.144	3
January	2024	0.167	2
December	2023	0.179	2
November	2023	0.000	1
October	2023	0.111	2
		Total:	12

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.117	7
2023	0.114	22
2022	0.168	26
2021	0.115	15
2020	0.157	27
2019	0.153	21
2018	0.141	36
2017	0.126	15
2016	0.118	25
2015	0.100	22
2014	0.115	23
2013	0.092	32
2012	0.094	43
2011	0.093	41
2010	0.102	7

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.105	38
2009	0.110	31
2008	0.091	40
2007	0.101	47
2006	0.078	33
2005	0.078	40
2004	0.138	15
2003	0.112	32
2002	0.152	19
	Total:	295

* 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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