Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Grundy County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
April	2024	0.361	1
March	2024	0.150	5
February	2024	0.099	2
January	2024	0.092	2
December	2023	0.082	1
November	2023	0.089	1
		Total:	12

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.149	10
2023	0.151	35
2022	0.141	24
2021	0.169	22
2020	0.135	16
2019	0.171	21
2018	0.171	16
2017	0.142	18
2016	0.156	34
2015	0.154	29
2014	0.141	28
2013	0.134	34
2012	0.163	33
2011	0.136	46
2010	0.113	18

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.126	18
2009	0.145	48
2008	0.126	36
2007	0.114	32
2006	0.124	48
2005	0.140	56
2004	0.135	40
2003	0.135	55
2002	0.135	36
	Total:	369

* 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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