Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Plymouth County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
November	2024	0.145	4
October	2024	0.139	5
September	2024	0.159	12
August	2024	0.189	8
July	2024	0.170	10
June	2024	0.123	13
		Total:	52

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.148	92
2023	0.149	95
2022	0.142	153
2021	0.145	122
2020	0.148	121
2019	0.153	115
2018	0.142	95
2017	0.138	66
2016	0.139	103
2015	0.138	129
2014	0.124	120
2013	0.118	132
2012	0.124	132
2011	0.108	150
2010	0.100	70

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.115	96
2009	0.098	201
2008	0.123	183
2007	0.113	174
2006	0.124	164
2005	0.129	183
2004	0.127	109
2003	0.127	164
2002	0.113	213
	Total:	1,487

* 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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