Twin Harbors Domoic Acid Levels | Washington Department of Fish & Wildlife

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Razor Clams

Twin Harbors Domoic Acid Levels

Long Beach | Twin Harbors | Copalis | Mocrocks | Kalaloch | Willapa Spits

1996-1999
Sample Date	Level (ppm)
6/09/96	3.0
12/11/96	2.0
4/05/97	1.0
10/1/97	0.0
1/15/98	0.0
6/12/98	0.0
7/29/98	9.0
8/11/98	8.0
9/04/98	12.0
9/21/98	47.0
10/05/98	107.0
10/19/98	108.0
11/02/98	81.0
11/18/98	100.0
12/03/98	48.0
12/17/98	51.0
1/04/99	48.0
1/18/99	27.0
2/01/99	48.0
2/18/99	52.0
3/01/99	48.0
3/15/99	40.0
4/02/99	36.0
5/17/99	22.0
6/15/99	10.0
7/19/99	9.0
8/11/99	21.0
9/23/99	13.0
10/06/99	11.0
10/13/99	6.0
10/24/99	22.0
10/31/99	7.0
11/07/99	15.0
11/10/99	15.0
11/13/99	16.0
11/21/99	10.0
12/05/99	6.0
12/12/99	5.0
12/19/99	7.0

2000-2001
Sample Date	Level (ppm)
1/17/2000	6.0
2/15/2000	19.0
3/22/2000	4.0
4/03/2000	3.0
4/12/2000	5.0
6/08/2000	10.0
7/16/2000	5.0
8/16/2000	2.0
9/12/2000	2.0
9/25/2000	5.0
10/11/2000	4.0
10/14/2000	3.0
10/20/2000	4.0
11/01/2000	3.0
11/16/2000	5.0
11/30/2000	4.0
1/24/2001	3.0
2/04/2001	3.0
3/11/2001	24.0
4/12/2001	18.0
4/22/2001	20.0
4/30/2001	19.0
5/07/2001	19.0
6/11/2001	10.0
7/25/2001	7.0
8/16/2001	5.0
8/30/2001	8.0
9/11/2001	8.0
9/18/2001	9.0
10/04/2001	5.0
10/10/2001	6.0
10/30/2001	5.0
11/07/2001	4.0
12/06/2001	5.0
12/17/2001	4.0
12/26/2001	2.0

2002-2003
Sample Date	Level (ppm)
1/14/02	3.0
1/24/02	5.0
2/21/02	2.0
3/24/02	3.0
4/21/02	4.0
5/06/02	4.0
6/17/02	2.0
7/14/02	3.0
9/30/02	16.0
10/06/02	60.0
10/21/02	113.0
11/04/02	52.0
11/18/02	48.0
12/02/02	70.0
12/17/02	63.0
12/30/02	44.0
1/16/03	60.0
1/28/03	59.0
2/13/03	61.0
2/27/03	69.0
3/24/03	63.0
4/07/03	22.0
4/14/03	36.0
4/21/03	32.0
5/05/03	38.0
5/20/03	29.0
6/01/03	33.0
6/16/03	15.0
7/01/03	27.0
7/15/03	10.0
8/11/03	17.0
8/25/03	17.0
9/03/03	19.0
9/08/03	21.0
9/15/03	12.02
9/22/03	9.0
9/29/03	18.0
10/06/03	9.0
10/13/03	10.0
10/20/03	5.0
11/12/03	2.0
11/23/03	4.0
12/08/03	7.0
12/14/03	12.0
12/23/03	4.0

2004
Sample Date	Level (ppm)
1/04/04	11.0
1/11/04	17.0
1/18/04	16.0
2/03/04	10.0
2/09/04	14.0
2/15/04	5.0
3/10/04	10.0
3/22/04	8.0
4/05/04	5.0
4/14/04	6.0
4/25/04	5.0
5/02/04	3.0
5/03/04	3.0
5/18/04	4.0
6/21/04	2.0
7/06/04	1.0
7/20/04	1.0
8/04/04	8.0
8/09/04	7.0
8/30/04	3.0
9/13/04	5.0
9/27/04	4.0
10/03/04	5.0
10/11/04	5.0
10/27/04	5.0
11/03/04	4.0
11/23/04	5.0
12/01/04	5.0
12/21/04	4.0
12/28/04	7.0

2005
Sample Date	Level (ppm)
1/13/05	6.0
1/26/05	6.0
2/12/05	5.0
2/24/05	3.0
3/06/05	2.0
3/23/05	9.0
3/31/05	3.0
4/14/05	3.0
4/20/05	9.0
4/21/05	6.0
4/23/05	12.0
5/01/05	18.0
5/02/05	10.0
5/06/05	8.0
5/27/05	5.0
6/09/05	5.0
7/11/05	6.0
7/28/05	2.0
8/09/05	4.0
8/22/05	2.0
9/06/05	6.0
9/19/05	2.0
10/02/05	9.0
10/09/05	11.0
10/09/05	11.0
11/06/05	9.0
12/12/05	3.0
12/19/05	1.0

2006
Sample Date	Level (ppm)
1/10/06	1.0
1/17/06	1.0
1/30/06	2.0
2/08/06	5.0
2/15/06	4.0
3/13/06	1.0
3/20/06	2.0
4/14/06	2.0
4/23/06	4.0
5/15/06	4.0
5/30/06	2.0
6/12/06	2.0
6/30/06	2.0
7/11/06	4.0
7/17/06	3.0
7/24/06	5.0
7/31/06	3.0
8/14/06	5.0
8/28/06	3.0
9/11/06	2.0
9/25/06	2.0
10/02/06	2.0
10/22/06	1.0
10/30/06	1.0
11/20/06	2.0
11/27/06	2.0
12/18/06	2.0

2007
Sample Date	Level (ppm)
12/18/06	2.0
1/15/07	1.0
1/28/07	4.0
2/03/07	4.0
2/28/07	4.0
3/07/07	4.0
4/04/07	3.0
4/12/07	3.0
4/26/07	3.0
5/04/07	4.0
5/21/07	3.0
6/12/07	3.0
6/18/07	4.0
7/03/07	1.0
7/30/07	1.0
8/13/07	NTD
8/27/07	1.0
9/25/07	<1.0
10/08/07	<1.0
10/16/07	<1.0
11/07/07	<1.0
11/14/07	<1.0

2008
Sample Date	Level (ppm)
1/11/08	<1.0
1/21/08	<1.0
2/02/08	<1.0
2/20/08	<1.0
4/01/08	<1.0
4/10/08	<1.0
4/27/08	<1.0
5/13/08	<1.0
5/19/08	NTD
6/03/08	<1.0
6/16/08	<1.0
7/07/08	<1.0
7/21/08	NTD
8/06/08	NTD
8/18/08	<1.0
9/02/08	<1.0
9/15/08	NTD
9/29/08	NTD
10/29/08	1.0
11/23/08	1.0
12/03/08	1.0
12/29/08	1.0

2009
Sample Date	Level (ppm)
1/21/09	1.0
1/28/09	1.0
3/09/09	1.0
3/17/09	1.0
3/27/09	1.0
4/13/09	NTD
4/19/09	<1.0
4/23/09	1.0
4/30/09	<1.0
5/11/09	1.0
5/26/09	2.0
6/22/09	1.0
7/23/09	1.0
8/03/09	3.0
8/11/09	4.0
8/16/09	3.0
9/21/09	3.0
9/28/09	1.0
10/04/09	4.0
10/12/09	3.0

2010
Sample Date	Level (ppm)
1/12/10	2.0
1/19/10	1.0
1/29/10	2.0
2/09/10	2.0
2/16/10	1.0
3/17/10	1.0
4/11/10	1.0
6/01/10	1.0
6/14/10	1.0
9/21/10	1.0
9/30/10	<1.0
10/20/10	<1.0
11/03/10	<1.0
11/10/10	<1.0
11/21/10	<1.0
12/21/10	<1.0

2011
Sample Date	Level (ppm)
1/06/11	1.0
1/16/11	<1.0
1/22/11	<1.0
2/04/11	<1.0
3/01/11	<1.0
3/09/11	<1.0
4/19/11	<1.0
4/26/11	<1.0
5/08/11	<1.0
5/3111	NTD
6/13/11	NTD
7/27/11	<1.0
8/04/11	NTD
9/01/11	<1.0
10/2711	<1.0
10/10/11	<1.0
10/20/11	<1.0
11/01/11	<1.0

For additional information:
WDFW Region 6 Office
(360) 249-4628
(ask for the razor clam management staff)