City staff proposes code revisions to tighten cross‑connection/backflow controls; public hearing planned

City staff told the Leavenworth City Council on July 22 they will prepare code revisions intended to standardize the cross‑connection (backflow) control program, require premise isolation devices for new construction and address inconsistent past enforcement.

Why it matters: Backflow devices are installed to prevent contaminants on private property (for example in irrigation systems) from entering the public drinking water supply. Staff described the current program as inconsistent and inequitable in how assemblies were required and inspected, and said the proposed revisions would clarify requirements for new and future construction.

What staff told council: The staff member presenting said premise isolation would be required on any new residential or commercial construction; depending on configuration an additional assembly could be required for irrigation systems. Staff said testing requirements depend on whether the device is the first device protecting the public system; the city enforces devices that protect the public water supply and will coordinate with building officials on items under the uniform plumbing code.

Public process: Staff said they will schedule a study session to explain the technical and public‑health rationale for the changes and will set public hearings on the code amendments. They also said they will propose ways to make enforcement more equitable for existing properties rather than applying new costs unevenly.

Discussion vs. decision: Council received the briefing and staff set dates for study materials and hearings; no code changes were adopted at the meeting.

Ending: Staff said they will return with a study session and formal code amendment language and will provide examples of risks and the community protections the program seeks to maintain.