1. New Jersey Department of Environmental Protection
Municipal Stormwater Regulation Program-Large Institutions and NJ Phase II Stormwater Regulations

2. What Does This Mean? In 1999 EPA enacted Phase II rules
Addresses non-point pollution from small and medium MS4s.

3. MS4s
What is a MS4?
Stormwater conveyance owned by the State, county municipality or other public entity
Designed to convey or collect stormwater
Discharges from privately owned facilities (hospitals, colleges) to MS4s are subject to municipal oversite

4. What are Public Complexes/
Colleges/Universities
The Richard Stockton State College
Military Bases
Naval Weapon Station Earle
Prisons
Federal Bureau of Prisons
Hospitals
VA Hospital-Lyons

5. Municipal (Publically owned MS4s) Stormwater Permits
In 2004 issued four permits-Tier A, Tier B, Public Complexes and Highway Agencies
Renewed in 2009
Comply with permits: in compliance with EPA’s Phase II rules
EPA’s Six Minimum Standards were put into permits as Statewide Basic Requirements (SBRs)
Must submit Annual Report and Certification (AR&C) to show compliance

6. SBRs- Stormwater Program
Post-Construction Stormwater Management in New and Re-development
Local Public Education (for Colleges, universities, and military bases
Improper Disposal of Waste
Illicit Connection and MS4 outfall pipe mapping
Solids & Floatables Control
Maintenance Yard Operations
Employee training
Construction Site Stormwater Runoff Control
Public Notice
Stormwater Program
Required to develop and implement a stormwater water program to reduce pollutants from their Municipal Separate Stormwater Sewer (MS4)
Create a Stormwater Pollution Prevention Plan (SPPP)

7. Annual Report NJ Regulatory Service Portal Tutorial
Entity Stormwater Coordinator
first then link to
Tutorial

8. Post-Construction in New and Re-development
Permits were finalized 2004 and incorporated Stormwater Management Rules (N.J.A.C.7:8) for projects that were funded after 2004
Public Complexes are self regulating

9. Post Construction Stormwater Control
For any development over 1 acre
Public
Complexes are self-compliant,
must complete
and submit stormwater checklist
For every project subject to 7:8
Must complete design checklist for every project
With every Annual report and Certification must submit summary checklist of all projects
can be found at DEP-Online

10. Additional SBRs Local Public Education Street Sweeping
Disposal of Waste
Illicit Connection and Elimination and MS4 Outfall Pipe Mapping
Solids and Floatable Control
Street Sweeping
Storm drain Inlet Retrofitting
Stormwater Facility Maintenance

11. Privately Owned Facilities
What are your responsibilities?
Maintenance of your Stormwater facilities
Municipal Approval of Major developments on-site
What is major Development?
Disturbance of 1 acre or more
Increase of impervious by more than ¼ acre
Disturbance=
placement of impervious surface
Exposure and/or movement of bedrock
Clearing, cutting or removing vegetation

12. What happens if my project is a major development?
Design and Performance Standards (N.J.A.C.7:8-5)
Photo courtesy of Camden SMART
Nonstructural stormwater management strategies
Groundwater recharge
Stormwater Quantity
Stormwater Quality
In many case, Green Infrastructure meets most of the design and performance standards

13. So Who Reviews It? Private Entities
Public Complexes and Highway Agencies
Private Entities
Obtain Local Approvals
Regulated Area; review by Division of Land Use Regulation and Municipal Engineer
Any Stormwater basin (Including GI) on a major development will be reviewed by the municipal engineer
Must Obtain a 251 Plan from the Local Soil Conservation District (Except NJDOT)
Self Certifying
Must Complete Post Construction Design Checklist
Send in Summary Sheet of all projects with your AR&C

14. Nonstructural Strategies
Mandatory for every major development
1st consideration to address performance standards
Must be maximized on-site
Land must be deed restricted to maintain strategy

15. How GI meet this requirement?
Photo courtesy of Camden SMART
Nonstructural strategies intended to maintain or mimic the natural hydrology
Green Infrastructure:
Manages runoff close to where it is generated
Dispersed throughout site
Uses vegetation or soils to treat runoff

16. Ground Water Recharge How does GI meet this requirement?
Maintain existing (100%) average annual ground water recharge
GI is often designed to infiltrate allowing ground water recharge
GI dispersed throughout site
Allows recharge to be distributed, as in a natural condition
Less ground water mounding Or
Infiltrate the increase in the 2-year storm

17. Ground Water Recharge Urban redevelopment Area
PA1, State Plan centers and Nodes, UEZ
No recharge required on previously developed portions of the site
Recharge is required if woody vegetation is re-established
Recharge is required if a portion of the site was never disturbed
Beware of Urban Soils
But I don’t have good soil,
Or I’m close to bedrock. Now what?
Recharge amount based on difference between existing and proposed condition
Urban redevelopment area exemption
Contaminated site prohibitions
High pollutant loading, stormwater exposed to source material-NO automatic exemption for the entire site

18. Stormwater Quantity Tidal Flood Hazard Area Exemption
Post-development hydrograph not to exceed pre-development hydrograph for 2-,10-and 100 year storms
Maintain peaks for above and demonstrate no downstream impacts with full development of drainage area
Reduce the post-construction peaks for the above to 50, 75, and 80% of pre-construction rates
Tidal Flood Hazard Area Exemption
In tidal flood hazard areas, quantity control is only required if the increased volume could increase flood damages below point of discharge
Use FEMA flood maps
Discharge into combined system should be analyzed

19. Does Green Infrastructure Meet Quantity Control?
Photo courtesy of the Rutgers Cooperative Extension
In general, GI is not intended to directly meet this requirement
Small, frequent storm events
Treat runoff close to source
Pervious pavement is the exception

20. Manufactured treatment Devices
Dry Wells
Legend
Porous Pavement
Basin
Bioretention Swales
Basins

21. Low Impact Development vs Traditional
Traditional design
Route GI upgradient
Of quantity basin
LID design

22. GI Indirectly Addressing Quantity
Traditional design
inflow runoff peak flow
hours (Basin A)
inflow volume
5.157 acre-feet (Basin A)
LID design
4.883 acre-feet (Basin A)
Reduce size of
Downstream flow
Simplify Design

23. Reduce post-construction TSS load by 80%
Stormwater Quality
Reduce post-construction TSS load by 80%
Applies at the increase in the impervious of ¼ acre
Applies only to runoff from impervious surfaces
Reduce nutrients
To the maximum
Extent possible

24. How Does GI Meet this Requirement?
NJ BMP Manual Chapter 9
Includes a number of GI practices
To receive adopted TSS removal rate, GI must be designed in accordance with design criteria
Alternate designs must be submitted to DWQ
GI intended to manage 1.25 “ Water Quality
Design Storm and below

25. Here’s How GI Stacks Up 50-90% TSS removal 30-60% TP removal
30-50% TN removal

26. Green I infrastructure Exemptions
Linear Development Exemption
Underground Utility
Above ground Utility
Public Pedestrian Access-providing it constructed of permeable material and maximum width of 14’
NJPDES Exemption
TSS reduction does not apply to runoff regulated under a NJPDES permit with TSS limit
If runoff is confirmed to discharge into a Treatment plant

27. Linear Development Waiver
Exemption from strict compliance with the design and performance standards:
Widening of an existing roadway
Widening of an existing railroad
Construction/widening of a public pedestrian access

28. What about Maintenance?
Public Complex:
Self complying-required for all SWFs on a major development
Maintenance plans must make sense to maintenance staff
Must be maintained as designed
Private Entities:
Required on all SWFs on a major development
Must include name and contact of responsible party
Must include specific tasks, schedules and costs estimates
Must be included on deed
Must make sense and be available to maintenance staff

29. New Jersey Department of Environmental Protection
Division of Water Quality
Bureau of Nonpoint Pollution control
Matthew Klewin-Environmental Specialist