Latest domoic acid levels

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 maximum threshold for domoic acid levels in razor clams at 20 parts per million.

Long Beach

Sample Date Level (ppm)
03/06/18 4.0
04/03/18 4.0
04/09/18 4.0
04/23/18 5.0
05/29/18 4.0
06/11/18 3.0
06/25/18 3.0
07/10/18 2.0
08/09/18 1.0
09/26/18 1.0
10/15/18 1.0
12/10/18 4.0
01/21/19 7.0
03/20/19 6.0

04/09/19

2.0

06/03/19

2.0

07/22/19

1.0

08/26/19

2.0

09/17/19

2.0

Chart: Domoic Acid Levels-Long Beach-2017-2019
Long Beach - 2017-2019
Chart: Domoic Acid Levels-Long Beach-1999-2019
Long Beach - 1999-2019

Twin Harbors

Sample Date Level (ppm)
03/06/18 5.0
04/03/18 4.0
04/10/18 5.0
06/25/18 3.0
08/09/18 2.0
09/27/18 1.0
10/03/18 1.0
10/16/18 1.0
10/29/18 1.0
11/11/18 2.0
11/25/18 2.0
12/08/18 3.0
12/23/18 3.0
01/06/19 5.0
01/21/19 7.0
02/19/19 6.0
03/07/19 5.0
03/16/19 4.0

03/27/19

7.0

04/11/19

5.0

06/03/19

3.0

07/22/19

1.0

08/26/19

3.0

09/16/19

1.0

Chart: Domoic Acid Levels-Twin Harbors-2017-2019
Twin Harbor - 2017-2019

 

Chart: Domoic Acid Levels-Twin Harbors-1999-2019
Twin Harbors - 1999-2019

Copalis

Sample Date Level (ppm)
03/06/18 5.0
03/21/18 8.0
04/03/18 5.0
04/10/18 5.0
04/23/18 5.0
05/21/18 3.0
05/30/18 4.0
06/12/18 2.0
06/25/18 2.0
07/17/18 1.0
07/26/18 1.0
08/28/18 2.0
09/10/18 1.0
09/27/18 1.0
10/03/18 1.0
10/16/18 2.0
10/29/18 3.0
11/11/18 1.0
11/25/18 2.0
12/08/18 2.0
12/22/18 2.0
01/06/19 6.0
01/21/19 6.0
01/30/19 6.0
02/19/19 5.0
03/07/19 5.0
03/16/19 5.0

03/27/19

4.0

04/02/19

4.0

04/11/19

4.0

04/30/19

4.0

05/08/19

3.0

05/15/19

3.0

06/02/19

3.0

07/08/18

3.0

08/02/19

3.0

08/12/19

1.0

08/19/19

1.0

09/15/19

2.0

09/30/19

2.0

Chart: Domoic Acid Levels-Copalis-2017-2019
Copalis - 2017-2019
Chart: Domoic Acid Levels-Copalis-1999-2019
Copalis - 1999-2019

Mocrocks

Sample Date Level (ppm)
03/06/18 3.0
03/21/18 3.0
04/02/18 5.0
04/11/18 3.0
04/23/18 3.0
05/21/18 3.0
05/30/18 5.0
06/25/18 1.0
07/16/18 1.0
07/26/18 1.0
08/28/18 1.0
09/10/18 1.0
09/26/18 1.0
10/03/18 1.0
10/16/18 2.0
10/29/18 2.0
11/11/18 2.0
11/25/18 3.0
12/08/18 3.0
12/22/18 3.0
01/06/19 4.0
01/21/19 4.0
01/30/19 5.0
02/19/19 3.0
03/08/19 4.0
03/17/19 5.0

03/27/19

6.0

04/02/19

5.0

04/11/19

3.0

04/30/19

3.0

05/08/19

3.0

05/15/19

4.0

06/02/19

4.0

07/07/19

3.0

08/01/19

2.0

08/12/19

2.0

08/19/19

1.0

09/15/19

2.0

09/30/19

2.0

Domoic Acid Levels-Mocrocks-2017-2019
Mocrocks - 2017-2019
Chart: Domoic Acid Levels-Mocrocks-1999-2019
Mocrocks - 1999-2019

Kalaloch

Sample Date Level (ppm)
03/20/18 21.0
05/01/18 5.0
05/16/18 4.0
05/30/18 5.0
07/13/18 NTD
07/27/18 2.0
08/14/18 1.0
08/28/18 2.0
09/11/18 1.0
09/24/18 1.0
10/03/18 2.0
10/16/18 2.0
10/29/18 3.0
11/20/18 2.0
12/05/18 1.0
12/27/18 3.0
01/06/19 3.0
02/20/19 3.0
03/07/19 3.0
03/17/19 2.0
03/20/19 3.0

03/25/19

3.0

04/20/19

1.0

05/07/19

2.0

05/21/19

2.0

06/04/19

1.0

06/18/19

NTD

07/01/19

NTD

07/16/19

1.0

07/30/19

1.0

08/14/19

1.0

 

Chart: Domoic Acid Levels-Kalaloch-1999-2019
Mocrocks - 1999-2019

Willapa Spits

Graph showing domoic acid levels in Willapa Spits from 2005-2015

 

Collection Date Sample Type Domoic Result (ppm)
02/07/17 Pre-Season 52.0
04/30/17 Pre-Season 44.0
05/31/17 Pre-Season 18.0
06/12/17 Pre-Season 34.0
07/26/17 Pre-Season 10.0
08/07/17 Pre-Season 23.0