In compliance with state requirements, the City of Hilliard has developed a stormwater management plan.  Under this plan, the City will educate and involve the community in stormwater pollution prevention, regulate stormwater run-off from construction sites, investigate non-stormwater discharges, and reduce non-stormwater runoff from municipal operations. 

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Construction sites are required to submit an erosion and sediment (E&S) control plan with any new
application for building permit.  The City reviews the E&S control plan for all submitted construction drawings with the City. Section 1181.11 of the City Code provides for inspections of all construction.
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City of Hilliard memo to Developers, Contractors, and/or Engineers
Construction Sediment and Erosion Control Inspection Report
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Stormwater Management Design Manual 
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The Stormwater Management Design Manual provides designers with a general overview on how to size, design, select, and locate stormwater management practices at a development site to comply with State stormwater performance standards.
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FileTypeSizeDownload
City of Hilliard - Stormwater Design ManualPDF918.42 KB Download
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Stream Corridor Protection
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The Stream Corridor Protection Zone (SCPZ) consists of the stream and the riparian area along the stream. Its purpose is to allow the natural, lateral movement of open water course and prevent structures from being impacted by natural stream bank erosion.

The SCPZ map for areas within the Big Darby Watershed illustrates a 'Priority Stream Restoration Zone' identified within the Big Darby Accord Watershed Master Plan.
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Hilliard Stream Corridor Protection Zone Map
Hilliard Stream Corridor Protection Zone Map
The map above should be used for reference purpose only.  Refer to the City of Hilliard Stormwater Design Manual for requirements and methods of establishing SCPZ boundaries.
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Big Darby Stream Corridor Protection Zone Map
The map above should be used for reference purpose only.  Refer to the City of Hilliard Stormwater Design Manual for requirements and methods of establishing SCPZ boundaries.
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Stormwater Utility 
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