Indiana

Indiana Storm Water Quality Manual

StateIndianahighNo

Fields not found in document: document_metadata.last_revised_date, design_criteria.required_hydrologic_hydraulic_software

Document Metadata

Jurisdiction level

state

“Published October 2007 by the Indiana Department of Environmental Management”
Title Page

State

Indiana

“Indianapolis, IN 46204-2251”
Title Page

Version / edition

October 2007

“Published October 2007”
Title Page

Adoption / effective date

2007-10-01

“Published October 2007”
Title Page

Last revised date

Not found in document

No evidence cited

Relationship to state manual

independent

“This manual is a comprehensive resource of planning principles and standards that can be implemented as land is being developed.”
Preface

Design Criteria

Design storm return periods (years)

10-year, 100-year

“The two most commonly used storm events are the 10-year frequency, 24-hour duration event and the 100-year frequency, 24-hour duration event.”
Chapter 3, Storm Water Calculations

Water quality volume method

Treat at least one-half inch of storm water runoff (water quality volume or storage) from impervious surfaces, targeting removal of at least 80% of total suspended solids on an annual average basis; post-development peak discharge rates and volumes should not exceed predevelopment levels.

“Storm water quality measures selected should be designed to treat at least one-half inch of storm water runoff (water quality volume or storage), at a minimum, from the impervious surfaces. Treatment goals should be targeted to remove at least 80 percent of the total suspended solids from runoff on an annual average basis”
Chapter 5, Performance Standards

Peak flow calculation method(s)

Rational Method, NRCS Technical Release 55 (TR 55), NRCS Technical Release 20 (TR 20)

“Some of the more common and acceptable methods are the rational method, Technical Release Numbers 55 and 20.”
Chapter 3, Storm Water Calculations

Required hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Vegetated Swales, Filter Strip, Filter Ridge, Riparian Buffer Zones, Sand Filters, Pervious Concrete Systems, Porous Asphalt Systems, Porous Paver Systems, Infiltration Trench, Infiltration Basin, Bioretention Systems, Dry Extended Detention Basins, Wet Detention Ponds, Sediment Forebay Ponds, Constructed Storm Water Wetlands, Subsurface Detention/Retention, Gravity Oil-Grit Separators, Hydrodynamic Separators, Catch Basin Inserts With Treatment Medium

“Infiltration Trench ... Infiltration Basin ... Bioretention Systems ... Dry Extended Detention Basins ... Wet Detention Ponds ... Constructed Storm Water Wetlands”
Chapter 8 Table of Contents