Blue Hill, NE Environmental Rules: Stormwater Management (2026)

9, Drainage, is the Zoning Ordinance's only stormwater provision, and it works as a general no-harm standard rather than a numeric detention or capacity requirement. It prohibits erecting any building, structure, or use, and prohibits changing the existing contours of any land, including any change in the course, width, or elevation of a natural or other drainage channel, if that construction or grading would obstruct, interfere with, or substantially change drainage from the land to the detriment of neighboring land. The burden falls on the property owner: anyone wanting to build or otherwise alter the site's existing drainage has to provide the City, or whichever agent the City designates, with data demonstrating the change will not harm neighboring parcels.

The section does not name an engineer-of-record requirement, a specific storm-event standard, or a permit fee, leaving those details to whatever the City or its designated agent asks for on a case-by-case review. 4 building permit process, since a project changing site contours would also need a building permit before construction begins.