Bend releases draft single‑lot stormwater template as code change will require plans for small residential lots

City of Bend staff presented a draft “post-construction template” for single‑lot residential stormwater controls at the Water Advisory Group’s October meeting and asked members to review the form ahead of a tight implementation timeline.

“This is part of our requirement in our MS 4 permit to make sure that people are installing, stormwater controls for new development that creates or replaces 5,000 square feet of impervious surface,” said Elizabeth O'Keefe, water services department, stormwater program, explaining why the city is updating submittal requirements.

The draft template

City consultant Brian Wilkinson of AKS Engineering walked members through a one‑lot example intended for typical single‑family detached lots. The model lot is 100 feet by 50 feet (5,000 square feet). Wilkinson described a common layout in which roof areas are split into two basins (roughly 1,200 square feet each) and routed either to a subsurface infiltration gallery or to a shallow landscaped swale or pond…