South Carolina

South Carolina Stormwater Management BMP Handbook (BMP Field Manual)

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This extraction needs human review.

Main BMPFieldManual.pdf text is not machine-readable (custom font encoding). Extraction used readable section PDFs from the SC DES BMP Handbook (Wet/Dry Detention Ponds, Structural Controls). Peak-flow software/method details not found in readable sections.

Fields not found in document: design_criteria.required_hydrologic_hydraulic_software

Document Metadata

Jurisdiction level

state

“South Carolina Department of Environmental Services”
BMP Handbook landing page

State

South Carolina

“South Carolina DHEC”
Wet Detention Ponds p.118

Version / edition

July 31, 2005 (structural BMP sections; handbook sections revised through 2025)

“July 31, 2005”
Wet Detention Ponds p.118

Adoption / effective date

Not found in document

No evidence cited

Last revised date

2005-07-31

“July 31, 2005”
Wet Detention Ponds p.118

Relationship to state manual

independent

“SCDES BMP Handbook evaluates numerous Best Management Practices (BMPs)”
BMP Handbook landing page

Design Criteria

Design storm return periods (years)

1-year, 2-year, 10-year, 100-year

“Ponds shall be designed for the 2 and 10-year storms; The 100-year storm should not overtop the embankment”
Dry Detention Ponds

Water quality volume method

Wet detention ponds: permanent pool volume equals 1 inch of runoff per impervious acre (0.5 inch for wet extended ponds with aquatic bench; 0.1 inch for micropool extended ponds). Dry detention lower stage detains the water quality volume for at least 24 hours.

“design permanent pool volume is equal to 1-inch of runoff per impervious acre on the site”
Wet Detention Ponds

Peak flow calculation method(s)

Hydrologic analysis for outlet structure sizing (water quality and quantity control)

“Size the outlet structure for water quality control and water quantity control (based upon hydrologic”
Dry Detention Ponds

Required hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Erosion Prevention BMPs, Sediment Control BMPs, Runoff Control and Conveyance BMPs, Low Impact Development (LID) BMPs, Structural Water Quality BMPs

“Structural storm water quality controls are classified into the following categories: General Application Controls ... Limited Application Controls”
Structural Controls p.117