Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Delaware County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
November	2024	0.174	10
October	2024	0.162	4
September	2024	0.243	4
August	2024	0.151	8
July	2024	0.129	13
June	2024	0.177	18
		Total:	57

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.154	86
2023	0.134	84
2022	0.131	80
2021	0.123	110
2020	0.132	88
2019	0.143	60
2018	0.083	68
2017	0.117	61
2016	0.141	81
2015	0.120	58
2014	0.124	117
2013	0.139	100
2012	0.158	121
2011	0.131	119
2010	0.098	41

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.139	51
2009	0.137	67
2008	0.140	79
2007	0.135	92
2006	0.146	145
2005	0.133	70
2004	0.130	83
2003	0.128	102
2002	0.140	56
	Total:	745

* 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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