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1 New JerseyStormwaterBest Management Practices ManualNew Jersey department of environmental ProtectionDivision of Watershed ManagementNew Jersey Stormwater Best Management Practices ManualApril 2004 State of New JerseyJames E. McGreevey, GovernorDepartment of environmental ProtectionBradley M. Campbell, CommissionerLand Use ManagementErnest P. Hahn, Assistant CommissionerDivision of Watershed ManagementLarry Baier, DirectorIn cooperation withNew Jersey department of AgricultureNew Jersey department of Community AffairsNew Jersey department of TransportationNew Jersey department of environmental ProtectionDivision of Watershed ManagementPO Box 418 Trenton, NJ 08625-0418 AcknowledgementsParticipating State DepartmentsThis manual was developed in coordination with the New Jersey department of Agriculture, New JerseyDepartment of Community Affairs, and New Jersey department of department of environmental protection would like to thank the offices and individuals listed below fortheir assistance and contributions to the New Jersey Stormwater Best Management Practices ManagerElizabeth Semple, NJDEP Division of Watershed ManagementPrincipal AuthorsSandra A.

2 Blick, NJDEP , Division of Watershed ManagementFred Kelly, Natural Resources Conservation ServiceJoseph J. Skupien, , , Storm Water Management Consulting, Friedman, NJDEP Division of Water QualitySteve Jacobus, NJDEP Division of Watershed ManagementGene McColligan, NJDEP Division of Watershed ManagementHunter Birckhead, , , NJDA State Soil Conservation CommitteeJim Morris, Rutgers University, Cook College Office of Continuing Professional EducationChristopher Obropta, , PhD., Rutgers Cooperative ExtensionPaul Schiariti, , Mercer County Soil Conservation DistrictKaveh Zomorodi, PhD., DewberryChris Miller, Natural Resources Conservation ServiceUpdates and Future Versionsof the Stormwater BMP ManualTechnical information regarding updates of the New Jersey Stormwater BestManagement Practices Manual will be available at versions of the New Jersey Stormwater Best Management PracticesManual will reflect the technical updates found on the regarding future versions of the manual will be posted at this versions of the manual are expected to occur at most once a Jersey Stormwater Best Management Practices Manual Cover, Acknowledgements and Contents April 2004 Page iii of viTHE department WOULD ALSO LIKE TO THANK the Best Management Practices Manual TechnicalCommittee and the Mosquito Control Subcommittee for their assistance in the development of the technicalstandards in this manual.

3 Best Management Practices Manual Technical CommitteeDavid Ahdout, NJDOT Division of Design ServicesMichael Baier, NJDCA Division of Codes and StandardsSandra A. Blick, NJDEP , Division of Watershed ManagementHunter Birckhead, , , NJDA State Soil Conservation CommitteeKiong Chan, NJDOT Division of Design ServicesRobert Colburn, Land Improvement Contractors of America, NJ ChapterJoseph D Abundo, , NJ State Association of County EngineersAnthony DiLodovico, Schoor DePalma, Einthoven, NJDOT Division of Design ServicesBruce Friedman, NJDEP Division of Water QualityMadhu Guru, , NJDEP Land Use Regulation ProgramSteve Jacobus, NJDEP Division of Watershed ManagementMichael Kaminski, NJDOTFred Kelly, Natural Resources Conservation ServiceVincent J. Mazzei, Jr., , NJDEP Land Use Regulation ProgramGene McColligan, NJDEP Division of Watershed ManagementBrian McLendon, NJDEP Division of Water QualityFrank J.

4 Minch, NJDA State Soil Conservation CommitteeRichard A. Moralle, , , , , Society of Municipal Engineers, T & M AssociatesManish Patel, , NJDEP Office of Innovative TechnologyFrank S. Scarantino, , , NJ State Association of County Engineers, Society of Municipal EngineersJohn Showler, NJDA State Soil Conservation CommitteeJoseph J. Skupien, , , Storm Water Management Consulting, Szalaj, NJDOT Division of Design ServicesVictoria Thompson, Monmouth County Mosquito Extermination CommissionFritz Wise, NJDEP Division of Water QualityBest Management Practices Manual Mosquito Control SubcommitteeHadley C. Foster, Morris County Mosquito Extermination CommissionJohn Kranz, Middlesex County Mosquito Extermination CommissionDaniel Rice, Morris County Mosquito Extermination CommissionTHE department WOULD ALSO LIKE TO THANK the Best Management Practices Manual AdvisoryCommittee for their input and advice during the development of the manual:Best Management Practices Manual Advisory CommitteeMichael S.

5 Bennett, , Hatch Mott McDonaldTracy Carluccio, Delaware Riverkeeper NetworkThomas H. Cahill, , Cahill AssociatesFrank Doyle, RSIS Site Improvement Advisory BoardValerie Hrabal, , RSIS -Site Improvement Advisory Board, Keller KirkpatrickDon Johnson, , Montgomery Township Special Projects EngineerNew Jersey Stormwater Best Management Practices Manual Cover, Acknowledgements and Contents April 2004 Page iv of viBest Management Practices Manual Advisory Committee continuedDavid Lamm, , Natural Resources Conservation ServicePaul Pogorzelski, , Van Cleef Engineering AssociatesGene Santana, , Michael Baker Jr. Engineers, formerly from Act EngineersRamesh Rajagopal, , Gannett Fleming, van Rossum, Delaware RiverkeeperTHE department WOULD ALSO LIKE TO THANK the following individuals for their technical input andassistance during the development of the manual:Roger T. Bannerman, Wisconsin department of Natural ResourcesJeremiah Bergstrom, , , TRC Omni environmental CorporationStewart Comstock, , Maryland department of the EnvironmentJames F.

6 Cosgrove, Jr., , TRC Omni environmental CorporationKarl Dauber, , Michael Baker Jr. EngineersMark Gallagher, Princeton Hydro, LLCG eoffrey M. Goll, , Princeton Hydro, LLCJ effrey L. Hoffman, , NJDEP New Jersey Geological SurveyRichard R. Horner, , University of WashingtonRobert Limbeck, Delaware River Basin CommissionEric H. Livingston, Florida department of environmental ProtectionWilliam C. Lucas, TRC Omni environmental CorporationRichard H. McCuen, , University of MarylandRobert E. Pitt, , , University of AlabamaThomas R. Schueler, Center for Watershed ProtectionH. Earl Shaver, Auckland Regional Council, New ZealandEric W. Strecker, , GeoSyntec ConsultantsStephen J. Souza, , Princeton Hydro, LLCJohn A. Thonet, , , Thonet AssociatesPaul I. Welle, , Schnabel EngineeringTHE department WOULD ALSO LIKE TO THANK the staff at the Rutgers University, Cook College Office ofContinuing Professional Education, as well as the following individuals for administrative and research assistance:Robin Paulin, , Somerset County Engineering DepartmentBenjamin B.

7 Witherell, Water Resource ManagementFinally, a special thanks to our copy and style editor Nadene Rehnby at Hands On ReferencesThe information presented in each chapter of the Best Management Practices Manual was developed both frompublished sources and through detailed technical discussions held at numerous BMP Manual Technical, MosquitoControl, and Advisory Committee meetings hosted by the NJDEP . The information and conclusions developed atthese meetings reflect the technical knowledge of the committee members, which was derived from their ownexperience and both published and unpublished sources of Stormwater management information. Therefore, theNJDEP would like to thank all of the private, public, and academic researchers, practitioners, and experts,including those not specifically noted in the chapters References sections, who have contributed to the current,extensive body of Stormwater management knowledge upon which this manual has been Jersey Stormwater Best Management Practices Manual Cover, Acknowledgements and Contents April 2004 Page v of iiiChapter 1: Impacts of Development on 2: Low Impact Development 3: Regional and Municipal Stormwater Management 4: Stormwater Pollutant Removal 5: Computing Stormwater Runoff Rates and 6: Groundwater Recharge (April 2004).

8 7: 8: Maintenance and Retrofit of Stormwater Management Measures .. : Structural Stormwater Management Standard for Bioretention Standard for Constructed Stormwater Standard for Dry Standard for Extended Detention Standard for Infiltration Standard for Manufactured Treatment Standard for Pervious Paving Standard for Rooftop Vegetated Cover ..ReservedChapter Standard for Sand Standard for Vegetative Standard for Wet A: Low Impact Development A-1 Appendix B: Municipal Regulations B-1 Appendix C: Sample Municipal Stormwater Management C-1 Appendix D: Model Stormwater Control Ordinance for Municipalities (April 2004) .. D-1 New Jersey Stormwater Best Management Practices Manual Cover, Acknowledgements and Contents April 2004 Page vi of vi