City of Wilmington

NCDEQ Stormwater Design Manual (City Comprehensive Stormwater Ordinance / coastal MS4)

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Compare each cited field to the official PDF before relying on it. What this means

Municipality coverage via NCDEQ Design Manual MDC (same pattern as Cary). City coastal ordinance may impose additional SA/ORW depths not fully extracted here. Pipeline excerpt repair removed 1 unlocated citation(s).

Fields not found in document: document_metadata.jurisdiction_name

Other manuals in North Carolina: Charlotte-Mecklenburg, City of Asheville, City of Concord, City of Durham, City of Gastonia, City of Greensboro, City of High Point, City of Raleigh, City of Winston-Salem, North Carolina Department of Environmental Quality (NCDEQ), North Carolina Department of Transportation (NCDOT), Town of Cary

Document Metadata

Jurisdiction level

City

No evidence cited

State

North Carolina

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Version / edition

Revised: 1-3-2017 (MDC chapter)

No evidence cited

Adoption / effective date

2017-01-03

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Last revised date

2017-01-03

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Relationship to state manual

adopts state manual directly

“--- page 2 --- NCDEQ Stormwater BMP Manual ________________________________________________________________________________________________________ C-0. MDC for all SCMs 2 Revised: 1-3-2017 GENERAL MDC 1. SIZING. The design volume of SCMs shall take into”
p. 2

Design Criteria

Design storm return periods (years)

10-year

No evidence cited

Water quality volume method

Wilmington stormwater permitting relies on NCDEQ Stormwater Design Manual Minimum Design Criteria. Combined SCM design volume must handle the required storm depth for the applicable program (often 1" for runoff treatment under 15A NCAC 02H .1021(6) for non-coastal HQW/ORW; coastal/SA waters follow applicable rule depths). Design volume based on build-out runoff from surfaces draining to the system.

“combined design volume of all SCMs ... required storm depth ... one inch”
NCDEQ C-0 GENERAL MDC 1

Peak flow calculation method(s)

NCDEQ MDC outlet erosion protection for 10-year peak, City Comprehensive Stormwater Ordinance criteria

No evidence cited

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Infiltration systems, Bioretention cells, Permeable pavement, Vegetated swales, Level spreader-filter strips, SCM devices per 15A NCAC 02H .1051–.1062

No evidence cited