City of St. Louis / Metropolitan St. Louis Sewer District
Site Design Guidance (MSD post-construction BMP requirements / Maryland SWM Manual)
CityMissourimediumNeeds reviewCitations verified
This extraction is flagged for quality review.
Compare each cited field to the official PDF before relying on it. What this means
Criteria from Phase II Site Design Guidance documenting MSD rules; prefer direct MSD Laserfiche design chapter when available.
Other manuals in Missouri: City of Columbia, City of Independence, City of Jefferson City, City of Springfield, Mid-America Regional Council / Kansas City Metro APWA, Missouri
Document Metadata
Jurisdiction level
City
No evidence cited
State
Missouri
No evidence cited
Version / edition
Not found in document
No evidence cited
Adoption / effective date
Not found in document
No evidence cited
Last revised date
Not found in document
No evidence cited
Relationship to state manual
unknown
No evidence cited
Design Criteria
Design storm return periods (years)
2-year, 100-year
No evidence cited
Water quality volume method
MSD Rules & Regulations require BMPs to treat a water quality volume based on runoff from 1.14 inches of rainfall. Structural BMP design methodology adopts Chapters 3 and 5 of the Maryland Stormwater Design Manual (2000). Flood detention: release rates not to exceed allowable 2-year and 100-year 24-hour events (NRCS TR-55).
“MSD rules and regulations require use of BMPs to treat a water quality volume of runoff from 1.14 inches”
Site Design Guidance / MSD Phase II
Peak flow calculation method(s)
NRCS TR-55 Urban Hydrology for Small Watersheds, 2-year and 100-year 24-hour flood detention release rates, Maryland SWM Manual BMP sizing (Ch.3/5)
No evidence cited
Hydrologic/hydraulic software
Not found in document
No evidence cited
Approved BMP categories
Bioretention, Permeable pavement, Stormwater ponds / wetlands, Infiltration BMPs, Filtering systems / sand filters, Open channel systems, Green roof / rainwater harvesting (WQv reduction credits)
No evidence cited