A cross-walk to assist designers and modelers to match common BMPs identified in the MA and NH Stormwater Manual with the BMPs modeled in the MS4 permit and documented in appendix 

EPA Region 1

University of New Hampshire Stormwater Center (UNHSC)

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University of New HampshireUniversity of New Hampshire Scholars' RepositoryUNH Stormwater Center Research Institutes, Centers and Programs11-21-2017MS4 Resource: BMP CrosswalkUniversity of New Hampshire Stormwater Center (UNHSC)EPA Region 1Follow this and additional works at: https://scholars.unh.edu/stormwaterThis Article is brought to you for free and open access by the Research Institutes, Centers and Programs at University of New Hampshire Scholars'Repository. It has been accepted for inclusion in UNH Stormwater Center by an authorized administrator of University of New Hampshire Scholars'Repository. For more information, please contact nicole.hentz@unh.edu.Recommended CitationUniversity of New Hampshire Stormwater Center (UNHSC) and EPA Region 1, "MS4 Resource: BMP Crosswalk" (2017). UNHStormwater Center. 31.https://scholars.unh.edu/stormwater/31BMP convention crosswalk.  This table provides conventional naming conventions for common best management practices (BMPs) in the NH and MA manuals.  The EPA Pollutant Curves column matches systems to how they would be modeled with the performance curves.  The cost estimate column matches systems with how they would be estimated with the cost memo. Massachusetts Stormwater Manual New Hampshire Stormwater Manual EPA Pollutant Curves EPA Cost EstimatesBioretention Areas & Rain Gardens (with infiltration)Bioretention System (with infiltration)Infiltration Basin BioretentionBioretention Areas & Rain Gardens (underdrain, no infiltration)Bioretention System (underdrain, no infiltration) Biofiltration BiofiltrationProprietary Media Filters Tree Box Filter Biofiltration BiofiltrationExtended Detention Wetlands Extended Detention Wetlands Dry Pond Dry PondExtended Dry Detention Basins Micropool Extended Detention Pond Dry Pond Dry PondDry Detention Basins Dry Pond Dry PondInfiltration Basins In-Ground Infiltration Basin Infiltration Basin Infiltration BasinWet Basins Wet Pond Wet Pond Wet PondWet Basins Wet Extended Detention Pond Wet Pond Wet PondWet Basins Multiple Pond System Wet Pond Wet PondWet Basins Pocket Pond Wet Pond Wet PondPorous Pavement Permeable Pavement Porous Pavement Porous PavementWater Quality Swale Treatment Swales Grass Swale Grass SwaleSand & Organic Filters Surface Sand Filter Sand Filter Sand FilterInfiltration Trenches Infiltration Trench Infiltration Trench Infiltration TrenchDry Wells Dry Well Infiltration Trench NALeaching Catch Basin Leaching Basin Infiltration Trench NASubsurface Structures Underground (Subsurface) Infiltration Basin Infiltration Trench Infiltration TrenchGravel Wetlands Gravel Wetlands Gravel Wetland Gravel WetlandBasin/Wetland System Pond/Wetland Systems Gravel Wetland Gravel WetlandShallow Marsh System Shallow Wetlands Gravel Wetland Gravel WetlandPocket Wetland Gravel Wetland Gravel WetlandSystems that need additional description/credit Systems that need additional description/creditBuffersUnderground Sand FiltersGreen Roofs Green Roofs*Rainbarrels & Cisterns *Rainbarrels/Cisterns*Impervious Cover Disconnection *Impervious Cover Disconnection *Appendix F attachement 3 of the NH and MA MS4 permit includes methods to design and quantify associated nutrient load reduction credits for impervious cover disconnection and removal including use of rainbarrels.* *  Note this is not an exhaustive list of BMPs but rather a simple and uniform approach to crediting.  Additional BMP performance curves are anticipated as the need arises.

MS4 Resource:  BMP Crosswalk

University of New Hampshire

University of New Hampshire
University of New Hampshire Scholars' Repository
UNH Stormwater Center Research Institutes, Centers and Programs
11-21-2017
MS4 Resource: BMP Crosswalk
University of New Hampshire Stormwater Center (UNHSC)
EPA Region 1
Follow this and additional works at: https://scholars.unh.edu/stormwater
This Article is brought to you for free and open access by the Research Institutes, Centers and Programs at University of New Hampshire Scholars'
Repository. It has been accepted for inclusion in UNH Stormwater Center by an authorized administrator of University of New Hampshire Scholars'
Repository. For more information, please contact nicole.hentz@unh.edu.
Recommended Citation
University of New Hampshire Stormwater Center (UNHSC) and EPA Region 1, "MS4 Resource: BMP Crosswalk" (2017). UNH
Stormwater Center. 31.
https://scholars.unh.edu/stormwater/31
BMP convention crosswalk.  
This table provides conventional naming conventions for common best management practices (BMPs) in the NH and MA manuals.  
The EPA Pollutant Curves column matches systems to how they would be modeled with the performance curves.  The cost estimate 
column matches systems with how they would be estimated with the cost memo. 
Massachusetts Stormwater Manual New Hampshire Stormwater Manual EPA Pollutant Curves EPA Cost Estimates
Bioretention Areas & Rain Gardens (with 
infiltration)
Bioretention System (with infiltration)
Infiltration Basin Bioretention
Bioretention Areas & Rain Gardens (underdrain, no 
infiltration)
Bioretention System (underdrain, no infiltration) Biofiltration Biofiltration
Proprietary Media Filters Tree Box Filter Biofiltration Biofiltration
Extended Detention Wetlands Extended Detention Wetlands Dry Pond Dry Pond
Extended Dry Detention Basins Micropool Extended Detention Pond Dry Pond Dry Pond
Dry Detention Basins Dry Pond Dry Pond
Infiltration Basins In-Ground Infiltration Basin Infiltration Basin Infiltration Basin
Wet Basins Wet Pond Wet Pond Wet Pond
Wet Basins Wet Extended Detention Pond Wet Pond Wet Pond
Wet Basins Multiple Pond System Wet Pond Wet Pond
Wet Basins Pocket Pond Wet Pond Wet Pond
Porous Pavement Permeable Pavement Porous Pavement Porous Pavement
Water Quality Swale Treatment Swales Grass Swale Grass Swale
Sand & Organic Filters Surface Sand Filter Sand Filter Sand Filter
Infiltration Trenches Infiltration Trench Infiltration Trench Infiltration Trench
Dry Wells Dry Well Infiltration Trench NA
Leaching Catch Basin Leaching Basin Infiltration Trench NA
Subsurface Structures Underground (Subsurface) Infiltration Basin Infiltration Trench Infiltration Trench
Gravel Wetlands Gravel Wetlands Gravel Wetland Gravel Wetland
Basin/Wetland System Pond/Wetland Systems Gravel Wetland Gravel Wetland
Shallow Marsh System Shallow Wetlands Gravel Wetland Gravel Wetland
Pocket Wetland Gravel Wetland Gravel Wetland
Systems that need additional description/credit Systems that need additional description/credit
Buffers
Underground Sand Filters
Green Roofs Green Roofs
*Rainbarrels & Cisterns *Rainbarrels/Cisterns
*Impervious Cover Disconnection *Impervious Cover Disconnection 
*Appendix F attachement 3 of the NH and MA MS4 permit includes methods to design and quantify associated nutrient load reduction credits for 
impervious cover disconnection and removal including use of rainbarrels.
* *  Note this is not an exhaustive list of BMPs but rather a simple and uniform approach to crediting.  Additional BMP performance curves are 
anticipated as the need arises.


https://scholars.unh.edu/cgi/viewcontent.cgi?article=1030&amp;context=stormwater

MS4 Resource: BMP Crosswalk

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