Our region is progressing toward a healthy, resilient future.

Cities and counties around Puget Sound were required to update their development codes and regulations by 2016 to make low-impact development (LID) the “preferred and commonly used approach” for our region. Not all took meaningful steps by the deadline, but since 2017 we have seen significant progress. Since our first Scorecard was issued in 2017, 28 municipalities have made strong improvements. Now, over 70% of cities and counties have earned at least 4 of 5 checkmarks. View the 2019 Scorecard now.

This progress is evidence that YOU can make a difference: your calls, emails, and testimony to your city and county councils have helped move the dial on stormwater pollution to better protect our waterways.

However, there is more work to do. Our region has not yet fully implemented the low-impact development code updates that were required by the 2012-2018 stormwater permits, and 16% of Puget Sound cities and counties still lag far behind. We are close – but we’re not finished yet. If your community is still falling short, be sure to take action – just one or two tweets, posts, phone calls, emails or in-person testimonials from community members is enough to grab the attention of your representatives. Council members need to hear from you so they know that you care about low-impact development and stormwater prevention!


Under the Clean Water Act, cities and counties are required to manage their stormwater runoff to protect water quality and make LID the “preferred and commonly used approach.” This means writing LID requirements into the municipal codes that govern development projects. We reviewed development code updates in all 83 Puget Sound municipalities with pollution discharge permits, and graded them on five key indicators based on State guidelines. Read more more about our grading rubric.


Cities and counties were required by law to review and update their development codes, making low-impact development techniques the new norm for our region. We looked at whether this process was completed and whether substantive updates were made under five key types of practices used to manage stormwater runoff.

View the Updated 2019 Scorecard today!