Kalaloch domoic acid levels

Visit the Kalaloch beach page for directions, harvest information, and more.

Domoic acid, a naturally occurring toxin produced by certain types of algae, can be harmful or even fatal to humans if contaminated shellfish is consumed. The Washington Department of Fish and Wildlife (WDFW) routinely provides razor clams from various ocean beaches to the Washington Department of Health to test for domoic acid. State public health officials have set the unsafe level for domoic acid in razor clams at 20 parts per million and above.

See domoic acid levels at Long Beach, Twin Harbors, Copalis, Mocrocks, and Willapa Spits.

On desktop/laptop, move the cursor over a data point to see the exact date and level. To zoom in or out on the chart, use the mouse scroll wheel. Click and drag the graph to pan the data left or right.

On touch devices, tap the data point to see the exact date and level. To zoom in or out on the chart, spread or pinch the chart area. Tap and drag the graph to pan the data left or right.

Show last 12 mos. Show historical data

All domoic acid readings in descending order of sample date
Sample Date	Level (ppm)
7/8/2024	1
6/25/2024	2
6/7/2024	3
5/13/2024	3
5/10/2024	0.5
12/12/2023	0.5
11/28/2023	0.5
11/14/2023	0.5
10/28/2023	0.5
8/29/2023	1
8/15/2023	2
8/1/2023	3
7/19/2023	1
7/7/2023	2
6/6/2023	2
5/19/2023	4
3/21/2023	3
1/20/2023	7
12/5/2022	5
11/23/2022	5
11/8/2022	5
11/3/2022	7
10/25/2022	6
10/11/2022	6
10/4/2022	7
9/6/2022	8
9/6/2022	8
8/26/2022	13
8/15/2022	11
8/12/2022	15
8/10/2022	20
7/24/2022	11
7/12/2022	4
6/28/2022	1
6/14/2022	1
5/31/2022	1
5/17/2022	1
5/17/2022	4
5/2/2022	1
4/19/2022	0.5
12/3/2021	1
9/7/2021	2
8/23/2021	4
8/10/2021	3
7/26/2021	5
7/14/2021	5
6/26/2021	7
6/12/2021	6
5/25/2021	7
5/4/2021	5
5/4/2021	16
4/29/2021	10
4/29/2021	11
4/28/2021	17
3/31/2021	28
12/12/2020	54
10/31/2020	20
9/18/2020	1
9/1/2020	1
8/18/2020	1
8/8/2020	1
8/4/2020	1
7/7/2020	1
6/23/2020	2
6/7/2020	1
5/24/2020	2
5/8/2020	1
4/26/2020	2
4/9/2020	1
11/24/2019	4
10/14/2019	2
8/14/2019	1
7/30/2019	1
7/16/2019	1
7/1/2019	0.1
6/18/2019	0.1
6/4/2019	1
5/21/2019	2
5/7/2019	2
4/20/2019	1
3/25/2019	3
3/20/2019	3
3/17/2019	2
3/7/2019	3
2/20/2019	3
2/19/2019	3
2/5/2019	4
1/6/2019	3
12/27/2018	3
12/5/2018	1
11/20/2018	2
10/29/2018	3
10/16/2018	2
10/3/2018	2
9/24/2018	1
9/11/2018	1
8/28/2018	2
8/14/2018	1
7/27/2018	2
7/13/2018	0.1
5/30/2018	5
5/16/2018	4
5/1/2018	5
3/20/2018	21
12/4/2017	20
11/30/2017	31
11/6/2017	27
10/5/2017	6
9/19/2017	0.5
9/6/2017	1
8/22/2017	1
8/20/2017	1
8/8/2017	5
7/25/2017	2
5/26/2017	9
5/3/2017	18
3/31/2017	3
2/23/2017	6
1/10/2017	7
12/27/2016	8
12/13/2016	10
11/20/2016	3
11/13/2016	5
9/27/2016	6
9/17/2016	6
8/17/2016	4
8/2/2016	3
7/5/2016	1
6/21/2016	5
5/22/2016	0.1
5/11/2016	6
4/11/2016	22
3/8/2016	14
2/9/2016	20
11/25/2015	18
10/27/2015	21
9/28/2015	8
9/10/2015	10
8/27/2015	14
7/29/2015	34
7/15/2015	47
6/30/2015	94
6/16/2015	85
6/2/2015	94
6/2/2015	95
5/18/2015	126
5/6/2015	34
8/11/2014	1
7/28/2014	0.5
7/15/2014	1
6/24/2014	2
6/15/2014	1
6/11/2014	2
5/14/2014	3
4/30/2014	4
4/22/2014	1
4/14/2014	3
4/1/2014	2
8/19/2013	3
8/6/2013	2
5/15/2013	0.1
4/30/2013	1
12/10/2012	2
11/14/2012	3
11/12/2012	2
10/28/2012	2
10/17/2012	3
9/26/2012	2
9/18/2012	2
9/10/2012	2
8/30/2012	4
8/29/2012	4
8/15/2012	1
7/31/2012	0.1
7/18/2012	0.5
7/3/2012	0.5
6/7/2012	1
5/6/2012	1
12/12/2011	1
10/25/2011	1
10/21/2011	1
9/29/2011	2
9/21/2011	1
9/9/2011	2
8/12/2011	0.5
7/28/2011	0.1
7/12/2011	0.1
6/29/2011	0.1
6/22/2011	0.1
6/14/2011	0.1
6/2/2011	0.1
5/31/2011	0.1
5/18/2011	0.1
5/16/2011	0.1
5/9/2011	0.1
5/4/2011	0.1
4/13/2011	0.1
3/21/2011	0.5
2/16/2011	0.1
2/4/2011	0.1
1/31/2011	0.1
1/23/2011	0.5
1/19/2011	0.5
1/15/2011	0.1
12/21/2010	0.5
11/22/2010	0.5
11/8/2010	0.1
10/26/2010	0.1
10/20/2010	0.1
10/7/2010	0.5
9/30/2010	0.1
9/21/2010	0.1
9/9/2010	0.5
9/7/2010	0.1
8/24/2010	1
8/9/2010	1
7/26/2010	1
7/25/2010	0.1
7/13/2010	1
6/29/2010	1
6/27/2010	1
6/23/2010	1
6/14/2010	1
6/10/2010	1
5/31/2010	1
5/17/2010	1
5/1/2010	1
4/12/2010	1
3/18/2010	1
2/28/2010	1
2/9/2010	1
1/27/2010	0.1
1/11/2010	1
12/30/2009	1
12/20/2009	1
12/14/2009	1
12/1/2009	1
11/23/2009	1
10/12/2009	1
10/3/2009	1
9/22/2009	1
9/15/2009	1
9/3/2009	2
9/2/2009	2
8/19/2009	2
8/3/2009	1
7/20/2009	1
7/6/2009	1
6/22/2009	1
6/9/2009	1
5/26/2009	1
5/11/2009	2
4/10/2009	0.1
3/29/2009	0.5
3/9/2009	0.5
1/26/2009	0.5
12/28/2008	0.1
11/13/2008	0.5
10/28/2008	0.1
10/13/2008	0.1
9/2/2008	0.5
8/13/2008	1
8/5/2008	0.5
7/29/2008	0.5
7/16/2008	1
7/1/2008	1
6/17/2008	5
6/5/2008	1
5/7/2008	5
4/21/2008	0.5
1/7/2008	3
12/24/2007	2
11/27/2007	1
11/13/2007	1
10/24/2007	2
8/27/2007	4
8/13/2007	0.1
7/30/2007	5
7/16/2007	1
7/12/2007	0.5
7/3/2007	3
6/18/2007	4
5/21/2007	5
5/1/2007	8
4/16/2007	6
4/12/2007	9
4/4/2007	14
3/8/2007	7
2/28/2007	12
2/13/2007	15
2/3/2007	14
1/28/2007	14
12/18/2006	8
12/5/2006	8
11/27/2006	13
11/19/2006	11
10/25/2006	7
10/10/2006	18
10/4/2006	14
10/2/2006	18
9/25/2006	15
9/19/2006	8
9/11/2006	19
9/6/2006	20
8/21/2006	16
8/8/2006	26
7/24/2006	34
7/18/2006	38
7/11/2006	20
6/26/2006	3
6/13/2006	2
5/30/2006	1
5/24/2006	1
5/15/2006	3
5/15/2006	3
3/20/2006	0.1
3/13/2006	3
2/26/2006	4
2/15/2006	3
2/8/2006	2
1/25/2006	3
1/11/2006	3
12/19/2005	6
12/12/2005	5
11/14/2005	6
11/6/2005	6
10/30/2005	4
10/9/2005	7
10/2/2005	7
9/7/2005	1
8/30/2005	2
8/22/2005	5
8/19/2005	3
8/2/2005	4
7/19/2005	9
6/23/2005	6
6/20/2005	6
6/6/2005	10
5/25/2005	12
5/10/2005	9
5/1/2005	12
4/25/2005	14
4/14/2005	17
4/5/2005	17
3/31/2005	22
3/22/2005	13
3/14/2005	15
3/7/2005	24
2/23/2005	16
2/11/2005	21
1/26/2005	22
1/13/2005	28
12/28/2004	22
12/22/2004	17
11/23/2004	23
10/27/2004	24
10/3/2004	29
9/27/2004	19
9/13/2004	23
8/30/2004	22
8/18/2004	49
8/16/2004	40
8/8/2004	48
8/3/2004	47
7/19/2004	7
6/21/2004	10
6/16/2004	3
6/2/2004	7
5/19/2004	12
5/12/2004	5
5/5/2004	8
5/2/2004	14
4/25/2004	16
4/14/2004	12
4/5/2004	11
4/1/2004	19
3/17/2004	11
3/14/2004	15
3/7/2004	14
3/2/2004	11
3/1/2004	10
2/18/2004	19
2/9/2004	28
2/1/2004	14
1/18/2004	11
1/5/2004	28
12/22/2003	8
12/14/2003	11
12/8/2003	11
11/23/2003	7
11/9/2003	22
11/5/2003	13
10/20/2003	21
10/13/2003	20
10/7/2003	12
9/29/2003	22
9/22/2003	19
9/15/2003	18
9/8/2003	25
9/3/2003	40
8/27/2003	15
8/25/2003	11
8/10/2003	22
7/15/2003	25
7/1/2003	43
6/15/2003	56
6/2/2003	66
5/18/2003	68
5/4/2003	84
4/20/2003	90
4/7/2003	97
3/23/2003	77
3/17/2003	90
2/27/2003	102
2/13/2003	68
1/28/2003	103
1/16/2003	67
12/29/2002	115
12/17/2002	80
12/3/2002	78
11/17/2002	98
11/4/2002	150
10/25/2002	67
10/13/2002	99
10/6/2002	52
9/30/2002	26
8/20/2002	1
7/22/2002	2
6/24/2002	4
5/28/2002	2
4/21/2002	1
3/24/2002	1
2/21/2002	1
1/14/2002	1
12/17/2001	1
11/7/2001	2
10/10/2001	2
9/4/2001	3
8/20/2001	2
7/9/2001	3
6/5/2001	6
5/8/2001	13
4/12/2001	12
3/5/2001	17
2/4/2001	4
1/24/2001	2
12/8/2000	4
11/16/2000	4
10/14/2000	6
9/13/2000	18
8/1/2000	2
7/17/2000	6
6/5/2000	7
5/3/2000	5
4/12/2000	6
3/16/2000	35
2/4/2000	24
1/18/2000	18
12/21/1999	19
11/22/1999	36
10/11/1999	20
9/8/1999	45
8/11/1999	16
7/28/1999	11
6/29/1999	81
5/17/1999	71
4/19/1999	236
3/15/1999	185
2/2/1999	214
1/4/1999	238