Local details that matter
A Hylebos address is not a diagnosis of your yard
Federal Way's West Hylebos assessment includes several residential densities alongside offices, multifamily buildings and commercial uses. The basin name alone therefore does not explain the type of grounds you want serviced. Identify the actual use, approximate maintained area and person responsible, and show any nearby drain or planted water-management feature in the same overview.
We use that context to discuss a specific mole-control setup, not to diagnose a drainage fault or claim the basin has one uniform soil condition. Tell us what is freshly disturbed and what happens after rain, leaving the two observations separate. Weekly service can then be followed against the active problem on your agreed area, while building maintenance, drainage repair or work on shared land remains with the appropriate responsible party.