Maine

Maine Stormwater Management Design Manual, Volume III – Technical Design Manual

StateMainehighNo

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Document Metadata

Jurisdiction level

state

“MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION”
Title Page

State

Maine

“Augusta, Maine 04333-0017”
Title Page

Version / edition

May 2016

“MAY 2016”
Title Page

Adoption / effective date

Not found in document

No evidence cited

Last revised date

2016-05-01

“This May 2016 edition supersedes these manuals”
Acknowledgments

Relationship to state manual

independent

“This manual is intended to be a guidance document for the design and implementation of sound technical stormwater management systems”
Disclaimer

Design Criteria

Design storm return periods (years)

1-year, 2-year, 10-year, 25-year

“treat the first 1 inch of runoff from impervious surfaces”
Chapter 2.1

Water quality volume method

Treat the first 1 inch of runoff from impervious surfaces and 0.4 inch from landscaped areas.

“Stormwater management facilities must be designed to treat the first 1 inch of runoff from impervious surfaces and 0.4 inch from landscaped areas.”
Chapter 2.1

Peak flow calculation method(s)

Rational Method, SCS TR-20, SCS TR-55

“familiarity with the Rational Method, SCS TR-20 and SCS TR-55 methodology”
Chapter 2

Required hydrologic/hydraulic software

TR-20, TR-55

“familiarity with the Rational Method, SCS TR-20 and SCS TR-55 methodology”
Chapter 2

Approved BMP categories

Detention Basins for Flooding Control, Wet Ponds, Vegetated Buffers, Infiltration BMPs, Filtration BMPs, Conveyance and Distribution Systems, Separator BMPs, LID Practices and Techniques

“Chapter 3 Detention Basins for Flooding Control ... Chapter 6 Infiltration BMPs ... Chapter 7 Filtration BMPs ... Chapter 10 LID Practices and Techniques”
Table of Contents