
Our vision:
A safe and healthy Kitsap County for all.

The Kitsap Public Health District's Water Pollution Identification & Correction (PIC) program protects public health and prevents fecal pollution in Kitsap County surface waters.
Health District staff sample dozens of streams and swimming beaches across the county for fecal bacteria, an indicator of fecal pollution caused by human or animal waste. Fecal pollution can carry viruses and harmful bacteria that make people sick.
We use water sampling results to notify the public of potential health risks, and to find and fix fecal pollution problems. This helps keep our streams, swimming beaches and shellfish beds safe and healthy for the public to enjoy.
Read the 2025 Water Quality Monitoring Report
Current Advisories
Active swimming beach, cyanobacteria (blue-green algae), and sewage spill advisories are listed below. Visit our swimming beach monitoring page to learn more and see a list of the beaches we monitor. For shellfish advisories, see our shellfish safety page.

Swimmer's Itch
Location:
All Lakes
Start Date:
Status:
Active
Swimmer's Itch (cercarial dermatitis) is caused by an allergic reaction to a parasite.
Swimmers should wear waterproof sunscreen and shower or vigorously towel-off immediately after swimming in a lake.
This list displays water contact advisories that were removed (expired) in the current calendar year. These advisories are no longer in effect. Check the list above for active advisories.
Mission Lake
Advisory:
Cyanobacteria Warning
Start Date:
September 9, 2026
Date Removed:
October 1, 2026
Status:
Removed
Wye Lake
Advisory:
Cyanobacteria Warning
Start Date:
August 20, 2026
Date Removed:
September 3, 2026
Status:
Removed
Panther Lake
Advisory:
Cyanobacteria Warning
Start Date:
August 20, 2026
Date Removed:
August 27, 2026
Status:
Removed
Panther Lake & Horseshoe Lake
Advisory:
Cyanobacteria Warning
Start Date:
July 21, 2026
Date Removed:
July 30, 2026
Status:
Removed
Portion of Liberty Bay & Keyport
Advisory:
Sewage Spill Advisory
Start Date:
June 22, 2026
Date Removed:
June 25, 2026
Status:
Removed
Island Lake
Advisory:
Swimming Beach Advisory
Start Date:
June 17, 2026
Date Removed:
June 18, 2026
Status:
Removed
Island Lake
Advisory:
Swimming Beach Advisory
Start Date:
June 10, 2026
Date Removed:
June 15, 2026
Status:
Removed
Kitsap Lake
Advisory:
Cyanobacteria Warning
Start Date:
April 6, 2026
Date Removed:
April 28, 2026
Status:
Removed
Shellfish advisories & safety
Visit our shellfish advisories page for additional information on shellfish marine biotoxin and long-term pollution closures, and additional information on shellfish safety.
What is a warning or no-contact advisory?
During a warning or a no-contact advisory, the public is advised to avoid contact with the water in the affected area. This means we recommend against swimming, wading, or types of water recreation or play where water could be swallowed or get in the mouth, nose, or eyes. People should also avoid direct skin contact if possible, and immediately wash with soap and water if they have exposure to the water.
Can I get sick if I play or swim in the water?
Yes, it is possible, but it's not a huge risk unless you ingest water or eat shellfish collected in the impacted area. People should avoid direct skin contact if possible, and immediately wash with soap and water if they have exposure to the water.
Can my pet get sick if it plays or swims in the water?
It is possible since animals can ingest water while swimming.
Is it safe to boat, kayak, or canoe in affected areas?
A warning or an advisory is a recommendation from the Health District to avoid swallowing or having direct contact with the water since contaminants may be present.
The further you are from the affected area, the less risk you will have of coming into contact with what is in the water. The type of activity you do in the water will also increase or decrease your chance of touching or swallowing the affected water, depending on what the activity is.
What should I do if I choose to boat, kayak or canoe?
You should wash your hands with soap and water and rinse your boat or kayak off.
Can I eat shellfish collected from the areas included in a sewage spill advisory?
No. After a sewage spill or combined sewer overflow you should not collect or consume shellfish from any part of the affected area. Additionally, crabbing or fishing activities in the affected area can increase the risk of exposure to pathogens.
Will I get in trouble if I swim in an affected area during the advisory?
Is that smell at low tide from a sewage spill?
Unless you are very close to the location of the source of a sewage spill (such as a broken pipe), it is very unlikely you are smelling the sewer spill. The sewer-like smell that sometimes occurs during low tide, especially on hot summer days, is the bacteria decomposing seaweed on the shoreline.
How long will the warning or advisory be in effect?
The duration of the advisory is determined by the type of contamination in the water. Subscribe to our water contact advisories to stay up to date.
Resources
Swimming Beaches | Kitsap Public Health
Water Pollution, Identification, and Correction | Kitsap Public Health
Recreational Water Illnesses | Washington State Dept. of Health
BEACH Program | Dept. of Ecology
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