Commissioners Debate Who Should Maintain New Retention Ponds as Floodplain Map Changes Loom

Liberal City commissioners and developers spent an extended portion of the meeting debating whether newly constructed retention ponds should become city responsibility or remain with developers and private property owners.

The issue arose after developers constructed a large retention pond inside a FEMA-designated flood plain as part of a residential subdivision. A project manager for the development told the commission the pond “is not only just benefiting the development area of itself, but it’s the surrounding area,” and said the developer assumed the city would take responsibility once construction was finished.

That account fed into a broader discussion about the city’s historical practice. Several commissioners said residents expect the city to handle stormwater infrastructure. “At the end of the day, we shouldn't be putting this burden on individual developers and property owners near that development,” one commissioner said, adding the city has spent millions fixing drainage elsewhere in town. Another commissioner urged caution about requiring developers to keep ponds in perpetuity because a developer could go out of business and leave maintenance obligations behind.

City staff explained the pond’s large size was driven by its location inside a FEMA flood plain and that a forthcoming flood-plain map revision could remove the parcel from regulation: “It will be gone and out of the flood plain when the finished maps…become effective,” a staff member said. Commissioners asked whether that change would affect the need for a retention pond and whether lots could be built earlier if maps are revised; staff said map revisions and any engineering requirements could still obligate a pond.

Commissioners discussed practical options: require written development agreements that specify when, and under what conditions, the city would accept a deeded pond; require developers to create long-term maintenance funds charged to lot owners; or change city policy to stop requiring ponds in favor of underground conveyance — a more expensive alternative. One staff member said the city will need to “know, hey. Look. This has a retention bond in it” at the planning stage so obligations are set in writing before construction.

No formal ordinance or vote was taken; commissioners expressed interest in further study. Several members proposed a dedicated work session to develop consistent policy and front-end review steps so future development agreements clearly state whether developers retain ownership, when deed transfer to the city would occur, and the standards for acceptance.

The discussion included repeated cautions about fairness and long-term cost: commissioners noted precedent where the city accepted similar ponds and paid for subsequent maintenance and said any future policy should clarify funding expectations and thresholds for city acceptance.

The commission indicated it will return to the subject in a future work session and directed staff to prepare options and draft language for development agreements and acceptance criteria.