City of Montpelier
Vermont Stormwater Management Manual Volume I (capital MS4)
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Municipality coverage via Vermont Stormwater Management Manual draft/state standards.
Document Metadata
Jurisdiction level
City
No evidence cited
State
Vermont
No evidence cited
Version / edition
DRAFT March 1, 2016
No evidence cited
Adoption / effective date
Not found in document
No evidence cited
Last revised date
2016-03-01
No evidence cited
Relationship to state manual
adopts state manual directly
No evidence cited
Design Criteria
Design storm return periods (years)
1-year, 10-year, 100-year
No evidence cited
Water quality volume method
WQv = (P)(Rv)(A) / 12, where P = 1.0 inch, Rv = 0.05 + 0.009(I), I = percent impervious, A = site area in acres.
“WQv = (P)(Rv)(A) / 12, where P = 1.0 inch”
VSMM Vol I
Peak flow calculation method(s)
NRCS Runoff methods, Watershed Lag Method, TR-55, TR-20
No evidence cited
Hydrologic/hydraulic software
TR-55, TR-20, HECRAS
No evidence cited
Approved BMP categories
Pre-Treatment Practices, Non-Structural Practices, Structural Stormwater Treatment Practices, Alternative Stormwater Treatment Practices
No evidence cited