Groundwater Assessment Model Evaluation


This project provides an in-depth hydrogeological assessment of Islandwide groundwater monitoring data (Task 1), evaluates the City's groundwater model, and implements City-selected model improvements (Task 2), and utilizes the model to test land use and resource management modifications in support of future updates to the City's Utility Management Plans and City's Comprehensive Plan (Task 3).

Man Assessing Groundwater


The City's Groundwater Management Program (GMP) was created in 2006 in response to conditions laid out in the Water Resources Element of the 2004 Comprehensive Plan which identified the assessment and protection of the Island's water resources as one of the top goals and guiding principles for the Plan.

At present, the City collects monthly water level data at 45 wells and annual chloride measurements in 30 wells Islandwide. Water level data is used to help assess the quantity of water in different aquifers. Chloride data is an indicator of potential seawater intrusion which occurs when saltwater intrudes into fresh water supplies.


  • Task 1 and 2 - Complete
  • Task 3 - Complete

Print Screen

Project Updates

Select "Notify Me" to subscribe to project notifications.

Title VI

Title VI: The City of Bainbridge Island fully complies with Title VI of the Civil Rights Act of 1964 and related statues in all programs and activities. Those requiring disability accommodations, please contact the City Clerk at 206-842-2545 or by email.