Hide Alert

Welcome to our new website. Learn more about what's new.

King County annual BEACH report

Ten beaches in King County were sampled weekly from May 23 through Aug. 29, 2016:

  • Alki Beach Park
  • Carkeek Park Beach
  • Dash Point State Park
  • Golden Gardens
  • Lincoln Park
  • Redondo County Park
  • Richey Viewpoint
  • Richmond Beach Saltwater Park
  • Saltwater State Park
  • Seahurst Park

Details on the condition of each beach are presented in the text below.

Richmond Beach Saltwater Park in King County

Keeping beaches safe

The Beach Environmental Assessment, Communication & Health (BEACH) Program ensures that marine water is safe to swim and play in and informs the public if water doesn't meet swimming standards.

During the 2016 beach season, 61 public beaches on coastlines were sampled from Memorial Day through Labor Day. High-use beaches were sampled weekly or biweekly for enterococcus, a type of fecal bacteria. High enterococcus levels are linked to swimmer illness.

King County saltwater swimming beaches

We sampled 10 King County beaches from May 23 through Aug. 29, 2016 almost every week during the swimming season.

Alki Beach Park

Alki Beach Park was sampled for 13 weeks during the swimming season. Water quality at this beach was good. On June 20, sampling results were in the swim advisory range, but subsequent sampling showed that bacteria levels had dropped into the safe swimming range.

This beach was closed to swimming due to a sewage spill on Jan. 21-25, 2016.

Carkeek Park beach

Carkeek Park beach was sampled for 13 weeks during the swimming season. Water quality at this beach was excellent and met swimming standards during all periods sampled.

This beach was closed to swimming due to a sewage spill from Jan. 16-27, 2016.

Dash Point State Park beach

Dash Point State Park beach was sampled for five weeks during the swimming season. This beach had good water quality. On Aug. 22, sampling results were in the swim advisory range, but subsequent sampling showed that bacteria levels had dropped into the safe swimming range.

Golden Gardens beach

Golden Gardens beach was sampled for 13 weeks during the swimming season. During the 2016 season, this beach had good water quality. On July 5, sampling results were in the swim advisory range, but subsequent sampling showed that bacteria levels had dropped into the safe swimming range.

Lincoln Park beach

Lincoln Park beach was sampled for 13 weeks during the swimming season. This beach had very good water quality, meeting swimming standards during all periods sampled.

Redondo County Park beach

Redondo County Park beach was sampled weekly during the swimming season. This beach had good water quality. On Aug. 8, sampling results were in the swim closure range, but subsequent sampling showed that bacteria levels had dropped into the safe swimming range.

Richey Viewpoint beach

Richey Viewpoint beach was sampled for 12 weeks during the sample season. This beach had very good water quality, meeting swimming standards during all periods sampled.

Richmond Beach Saltwater Park beach

Richmond Beach Saltwater Park was sampled for 13 weeks during the swimming season. This beach had very good water quality, meeting swim standards during all periods sampled.

Saltwater State Park beach

Saltwater State Park beach was sampled weekly during the swimming season. Bacteria levels at this beach were in the swim advisory range on July 13 and Aug. 8. Subsequent resampling showed that bacteria levels had dropped. No swim advisories were issued.

Seahurst Park beach

Seahurst Park Beach was sampled for 13 weeks during the swimming season. This beach had very good water quality, meeting swim standards during all periods sampled.

Data summary: Bacteria results compared to standards

The chart below summarizes the bacteria levels in these 10 beaches in relation to the EPA swimming standard:

  Geometric Mean 90th Percentile
EPA Swimming Standard ≤ 35 ≤ 276
Alki Beach Park 14 32
Carkeek Park Beach 12 19
Dash Point State Park Beach 12 29
Golden Gardens Beach 28 94
Lincoln Park Beach 17 48
Redondo County Park Beach 18 71
Richey Viewpoint Beach 23 73
Richmond Beach Saltwater Park 12 24
Saltwater State Park Beach 17 59
Seahurst Park Beach 16 32