Stormwater Atlas

City of Charleston

Stormwater Design Standards Manual

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Open source PDF ↗Official agency page ↗

This extraction is flagged for quality review.

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

2026 SWDSM; confirm council adoption date; numeric WQV depths in later chapters.

Fields not found in document: document_metadata.adoption_or_effective_date, design_criteria.design_storm_return_periods_years, design_criteria.required_hydrologic_hydraulic_software
Other manuals in South Carolina: City of Columbia, City of Greenville, South Carolina, South Carolina

Document Metadata

Jurisdiction level
City

“CITY OF CHARLESTON”

Cover

State
South Carolina

“SOUTH CAROLINA”

Cover

Version / edition
2026 SWDSM (COC_SWDSM_Final)

“2026 Stormwater Design Standards Manual”

City webpage / filename

Adoption / effective date
Not found in document

No evidence cited

Last revised date
2026-01-01

“SWAT Soil and Water Assessment Tool SWDSM Stormwater Design Standards Manual SWMM Stormwater Management Model SWMP Stormwater Management Plan or Stormwater Management Program SWPPP Stormwater Pollution Prevention Plan TMDL Total Maximum Daily Load TRC Technical Review Committ”

pp. 16–18

Relationship to state manual
independent

“City of Charleston Stormwater Design Standards Manual”

Purpose

Design Criteria

Design storm return periods (years)
Not found in document

No evidence cited

Water quality volume method
Post-construction Chapter 6 addresses permanent BMPs and Water Quality Volume (WQV). Manual integrates drainage design, stormwater quantity, and water quality for public infrastructure, development, and redevelopment; includes conveyance design criteria and special protection area standards.

“WQV Water Quality Volume / Chapter 6 Post-Construction”

TOC / Chapter 6

Peak flow calculation method(s)
Stormwater quantity / conveyance design criteria, Post-construction BMP / WQV requirements, Roadway drainage design criteria, Pre-construction through post-construction review process

“conveyance design criteria and design criteria for roadway drainage”

Design criteria

Hydrologic/hydraulic software
Not found in document

No evidence cited

Approved BMP categories
Post-construction stormwater BMPs, Water quality treatment practices, Conveyance / roadway drainage facilities, Erosion and sediment control BMPs (construction)

“permanent construction stormwater management practices / BMPs”

Introduction