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Grays Harbor County BEACH report

Three beaches in Grays Harbor County were sampled weekly from May 24 through Aug. 30, 2016:

  • Westhaven State Park, Half Moon Bay
  • Westhaven State Park, South Jetty
  • Westport, The Groynes

All three beaches are popular surfing beaches, and they all had good water quality with little or no bacteria present during most sample events. Details on each beach are presented in the text below.

South Jetty beach at Westhaven State Park

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.

Grays Harbor County saltwater swimming beaches

We sampled three beaches in Grays Harbor County weekly from May 24 through Aug. 30, 2016. All three beaches are popular surfing beaches, and they all had good water quality with little or no bacteria present during most sample events. See below for more details on each beach.

Westhaven State Park, Half Moon Bay

During the monitoring period, Half Moon Bay had good water quality. On May 24, this beach had sampling results in the swim advisory range, but subsequent sampling showed that bacteria levels had dropped into the safe swimming range.

Westhaven State Park, South Jetty

South Jetty had excellent water quality. The beach met swimming standards during all periods sampled.

Westport, The Groynes

The Groynes beach had very good water quality. The beach met swimming standards during all periods sampled.

Data summary: Bacteria results compared to standards

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

  Geometric Mean 90th Percentile
EPA Swimming Standard ≤ 35 ≤ 276
Westhaven State Park, Half Moon Bay 16 41
Westhaven State Park, South Jetty 9 10
Westport, The Groynes 13 26