DESIGN STANDARDS
When the spacing interval exceeds 40 feet, small ornamental trees can be spaced between the large trees. Trees shall be planted so as not to interfere with utilities, roadways, sidewalks, sight easements, or street lights. Tree location, landscaping design and spacing plan shall be approved by the Board as part of the landscape plan. |
Tree species, cultivar or variety | Diameter Exceeding |
|---|---|
A. concolor | 18" |
Acer negundo | 18" |
A. nigrum | 25" |
A. platanoides | 29" |
A. rubrum | 30" |
A. saccharinum | 35" |
A. saccharum | 25" |
Betula nigra | 30 |
Carya ovata | 15" |
Catalpa sepciosa | 25" |
Cedrus atlantica glauca | 15" |
Celtis Occidentalis | 13" |
Cryptomeria japonica | 13" |
Cornus florida | 13" |
Fagus grandiflora | 13" |
Fraxinus americana | 26" |
F. pennsylvanica | 25" |
Gleditsia triacanthos inermis | 24" |
Gymnocladus dioicus | 27" |
Ilex opaca | 12" |
Juglans nigra | 29" |
Juniperus virginiana | 12" |
Liquidambar styraciflua | 25" |
Liriodendron tulipifera | 40" |
Magnolia virginiana | 16" |
Malus Varieties | 15" |
Nyssa sylvatica | 25" |
Oxydendrum arboretum | 12" |
Picea abies | 25" |
P. pungens 'Glauca' | 18" |
Pinus echinata | 20" |
P. strobus | 24" |
Platanus occidentalis | 30" |
Populus deltoides | 21" |
Prunus serotina | 20" |
Quercus alba | 20" |
Q. bicolor | 25" |
Q. coccinea | 25" |
Q. palustris | 25" |
Q. phellos | 25" |
Q. prinus | 24" |
Q. rubra | 24" |
Q. stellata | 24" |
Q. veluntia | 25" |
Sciadopitys verticillata | 15" |
Taxodium distichum | 24" |
Ulmus americana | 34" |
Type of Area | Minimum Intensity Foot-candles | Average Intensity Foot-candles | Uniformity Ratio (1) |
|---|---|---|---|
General Street Lighting | 0.2 | 0.5 | 12:1 |
Shopping Center Parking | 0.4 | 0.8 | 12:1 |
Industrial Site Parking | 0.4 | 0.8 | 12:1 |
Commercial Parking | 0.5 | 1.0 | 15:1 |
Entrance and Exit Roads | 1.0 | 2.0 | 10:1 |
Residential Area Parking and Drive Areas | 0.2 | 0.5 | (2) |
(1) The Uniformity Ratio equals the maximum lighting level over the minimum lighting level. |
(2) Minimum levels shall be required in residential use only for townhouse, condominium, or other multifamily type of residential use. |
Such conditions, where present on a portion of a lot shall not be excluded when calculating the square footage required in any zoning district in order to satisfy the minimum lot size, and shall not deem the lot as unsuitable for development. |
6 Bedroom | 3.5 (4 spaces) |
7 Bedroom | 4.0 (4 spaces) |
8 Bedroom | 4.5 (4 spaces) |
9 Bedroom | 5.0 (5 spaces) |
10 Bedroom | 5.5 (5 spaces) |
Note: Basements shall be considered two bedrooms in determining the number of bedrooms in a dwelling and habitable attics shall be considered one bedroom in determining the number of bedrooms in a dwelling. [Ord. No. 2017-27 § 2] |
Uses or Function | Type of Sign Permitted | Other Regulations |
|---|---|---|
Identification | Ground, Wall | Notwithstanding size standards contained in this section, the maximum size of a sign shall not exceed four square feet, and four feet in height. |
Nameplate | Ground, Projecting, Wall | Notwithstanding size standards contained in this section, the maximum size of a sign shall not exceed one and one-half (1 1/2) square feet, and four feet in height. |
"No Solicitation" | Wall | Sign shall be located on or within two feet of front door and shall not exceed one square foot, and four feet in height. |
Uses or Function | Types of Sign Permitted | Other Regulations |
|---|---|---|
Real Estate Advertising | Ground | Only one per lot permitted on undeveloped lots |
Business | Ground and Wall | Only one type of sign permitted for each separate street frontage of a business occupancy.(1) |
Directory | Ground | Only two signs per lot are permitted at its main ingress or egress points |
Nameplate | Ground, Projecting, Wall | Only one type of sign permitted for each occupant of a lot. Notwithstanding this section, maximum sign area shall not exceed eight sq. ft. |
"No Solicitation" | Wall | Signs shall be located on or within two feet of front door and shall not exceed one square foot, and four feet in height. |
(1) If a wall of a building housing a business has exposure to a street but does not have frontage on the same street, one additional wall sign may be permitted on that wall. The height, area, dimensions, and construction of the sign shall be in accordance with all applicable requirements and limitations of this section. |
Abutting R.O.W. | |||
|---|---|---|---|
All Lanes of Traffic | Speed (mph) | Max Sign Area (SF) | Max Height (ft) |
2 | 15-25 | 15 | 5 |
30-40 | 35 | 6 | |
45-55 | 75 | 20 | |
4 | 30-40 | 50 | 18 |
45-55 | 120 | 22 | |
6 | 30-40 | 65 | 20 |
45-55 | 130 | 24 | |
Major development includes all developments that are part of a common plan of development or sale (for example, phased residential development) that collectively or individually meet any one or more of paragraphs 1, 2, 3, or 4 above. Projects undertaken by any government agency that otherwise meet the definition of "major development" but which do not require approval under the Municipal Land Use Law, N.J.S.A. 40:55D-1 et seq., are also considered "major development." |
Table 1 Green Infrastructure BMPs for Groundwater Recharge, Stormwater Runoff Quality, and/or Stormwater Runoff Quantity | ||||
|---|---|---|---|---|
Best Management Practice | Stormwater Runoff Quality TSS Removal Rate (percent) | Stormwater Runoff Quantity | Groundwater Recharge | Minimum Separation from Seasonal High Water Table (feet) |
Cistern | 0 | Yes | No | — |
Dry well(a) | 0 | No | Yes | 2 |
Grass swale | 50 or less | No | No | 2(e) 1(f) |
Green roof | 0 | Yes | No | — |
Manufactured treatment device(a)(g) | 50 or 80 | No | No | Dependent upon the device |
Pervious paving system(a) | 80 | Yes | Yes(b) No(c) | 2(b) 1(c) |
Small-scale bioretention basin(a) | 80 or 90 | Yes | Yes(b) No(c) | 2(b) 1(c) |
Small-scale infiltration basin(a) | 80 | Yes | Yes | 2 |
Small-scale sand filter | 80 | Yes | Yes | 2 |
Vegetative Filter Strip | 60 to 80 | No | No | — |
(Notes corresponding to annotations(a) through(g) are found following Table 3) |
Table 2 Green Infrastructure BMPs for Stormwater Runoff Quantity (or for Groundwater Recharge and/or Stormwater Runoff Quality with a Waiver or Variance from N.J.A.C. 7:8-5.3) | ||||
|---|---|---|---|---|
Best Management Practice | Stormwater Runoff Quality TSS Removal Rate (percent) | Stormwater Runoff Quantity | Groundwater Recharge | Minimum Separation from Seasonal High Water Table (feet) |
Bioretention system | 80 or 90 | Yes | Yes(b) No(c) | 2(b) 1(c) |
Infiltration basin | 80 | Yes | Yes | 2 |
Sand filter(b) | 80 | Yes | Yes | 2 |
Standard constructed wetland | 90 | Yes | No | N/A |
Wet pond(d) | 50 to 90 | Yes | No | N/A |
(Notes corresponding to annotations(b) through(d) are found following Table 3) |
Table 3 BMPs for Groundwater Recharge, Stormwater Runoff Quality, and/or Stormwater Runoff Quantity only with a Waiver or Variance from N.J.A.C. 7:8-5.3 | ||||
|---|---|---|---|---|
Best Management Practice | Stormwater Runoff Quality TSS Removal Rate (percent) | Stormwater Runoff Quantity | Groundwater Recharge | Minimum Separation from Seasonal High Water Table (feet) |
Blue roof | 0 | Yes | No | N/A |
Extended detention basin | 40 to 60 | Yes | No | 1 |
Manufactured treatment device(h) | 50 or 80 | No | No | Dependent upon the device |
Sand filter(c) | 80 | Yes | No | 1 |
Subsurface gravel wetland | 90 | No | No | 1 |
Wet pond | 50 to 90 | Yes | No | N/A |
(Notes corresponding to annotations(b) through(d) are found following Table 3) |
Notes to Tables 1, 2, and 3: | |
(a) | Subject to the applicable contributory drainage area limitation specified at § 18-815.1.4O2; |
(b) | Designed to infiltrate into the subsoil; |
(c) | Designed with underdrains; |
(d) | Designed to maintain at least a ten-foot wide area of native vegetation along at least 50% of the shoreline and to include a stormwater runoff retention component designed to capture stormwater runoff for beneficial reuse, such as irrigation; |
(e) | Designed with a slope of less than 2%; |
(f) | Designed with a slope of equal to or greater than 2%; |
(g) | Manufactured treatment devices that meet the definition of green infrastructure at § 18-815.1.2; |
(h) | Manufactured treatment devices that do not meet the definition of green infrastructure at § 18-815.1.2. |
Best Management Practice | Maximum Contributory Drainage Area |
|---|---|
Dry well | 1 acre |
Manufactured treatment device | 2.5 acres |
Pervious pavement systems | Area of additional inflow cannot exceed three times the area occupied by the BMP |
Small-scale bioretention systems | 2.5 acres |
Small-scale infiltration basin | 2.5 acres |
Small-scale sand filter | 2.5 acres |
Table 4 - Water Quality Design Storm Distribution | |||||
|---|---|---|---|---|---|
Time (minutes) | Cumulative Rainfall (inches) | Time (minutes) | Cumulative Rainfall (inches) | Time (minutes) | Cumulative Rainfall (inches) |
1 | 0.00166 | 41 | 0.1728 | 81 | 1.0906 |
2 | 0.00332 | 42 | 0.1796 | 82 | 1.0972 |
3 | 0.00498 | 43 | 0.1864 | 83 | 1.1038 |
4 | 0.00664 | 44 | 0.1932 | 84 | 1.1104 |
5 | 0.00830 | 45 | 0.2000 | 85 | 1.1170 |
6 | 0.00996 | 46 | 0.2117 | 86 | 1.1236 |
7 | 0.01162 | 47 | 0.2233 | 87 | 1.1302 |
8 | 0.01328 | 48 | 0.2350 | 88 | 1.1368 |
9 | 0.01494 | 49 | 0.2466 | 89 | 1.1434 |
10 | 0.01660 | 50 | 0.2583 | 90 | 1.1500 |
11 | 0.01828 | 51 | 0.2783 | 91 | 1.1550 |
12 | 0.01996 | 52 | 0.2983 | 92 | 1.1600 |
13 | 0.02164 | 53 | 0.3183 | 93 | 1.1650 |
14 | 0.02332 | 54 | 0.3383 | 94 | 1.1700 |
15 | 0.02500 | 55 | 0.3583 | 95 | 1.1750 |
16 | 0.03000 | 56 | 0.4116 | 96 | 1.1800 |
17 | 0.03500 | 57 | 0.4650 | 97 | 1.1850 |
18 | 0.04000 | 58 | 0.5183 | 98 | 1.1900 |
19 | 0.04500 | 59 | 0.5717 | 99 | 1.1950 |
20 | 0.05000 | 60 | 0.6250 | 100 | 1.2000 |
21 | 0.05500 | 61 | 0.6783 | 101 | 1.2050 |
22 | 0.06000 | 62 | 0.7317 | 102 | 1.2100 |
23 | 0.06500 | 63 | 0.7850 | 103 | 1.2150 |
24 | 0.07000 | 64 | 0.8384 | 104 | 1.2200 |
25 | 0.07500 | 65 | 0.8917 | 105 | 1.2250 |
26 | 0.08000 | 66 | 0.9117 | 106 | 1.2267 |
27 | 0.08500 | 67 | 0.9317 | 107 | 1.2284 |
28 | 0.09000 | 68 | 0.9517 | 108 | 1.2300 |
29 | 0.09500 | 69 | 0.9717 | 109 | 1.2317 |
30 | 0.10000 | 70 | 0.9917 | 110 | 1.2334 |
31 | 0.10660 | 71 | 1.0034 | 111 | 1.2351 |
32 | 0.11320 | 72 | 1.0150 | 112 | 1.2367 |
33 | 0.11980 | 73 | 1.0267 | 113 | 1.2384 |
34 | 0.12640 | 74 | 1.0383 | 114 | 1.2400 |
35 | 0.13300 | 75 | 1.0500 | 115 | 1.2417 |
36 | 0.13960 | 76 | 1.0568 | 116 | 1.2434 |
37 | 0.14620 | 77 | 1.0636 | 117 | 1.2450 |
38 | 0.15280 | 78 | 1.0704 | 118 | 1.2467 |
39 | 0.15940 | 79 | 1.0772 | 119 | 1.2483 |
40 | 0.16600 | 80 | 1.0840 | 120 | 1.2500 |
R = A + B - (A x B)/100 | ||
Where: | ||
R | = | total TSS Percent Load Removal from application of both BMPs, and |
A | = | the TSS Percent Removal Rate applicable to the first BMP |
B | = | the TSS Percent Removal Rate applicable to the second BMP. |
Table 5: Current Precipitation Adjustment Factors | |||
|---|---|---|---|
County | Current Precipitation Adjustment Factors | ||
2-Year Design Storm | 10-Year Design Storm | 100-Year Design Storm | |
Atlantic | 1.01 | 1.02 | 1.03 |
Bergen | 1.01 | 1.03 | 1.06 |
Burlington | 0.99 | 1.01 | 1.04 |
Camden | 1.03 | 1.04 | 1.05 |
Cape May | 1.03 | 1.03 | 1.04 |
Cumberland | 1.03 | 1.03 | 1.01 |
Essex | 1.01 | 1.03 | 1.06 |
Gloucester | 1.05 | 1.06 | 1.06 |
Hudson | 1.03 | 1.05 | 1.09 |
Hunterdon | 1.02 | 1.05 | 1.13 |
Mercer | 1.01 | 1.02 | 1.04 |
Middlesex | 1.00 | 1.01 | 1.03 |
Monmouth | 1.00 | 1.01 | 1.02 |
Morris | 1.01 | 1.03 | 1.06 |
Ocean | 1.00 | 1.01 | 1.03 |
Passaic | 1.00 | 1.02 | 1.05 |
Salem | 1.02 | 1.03 | 1.03 |
Somerset | 1.00 | 1.03 | 1.09 |
Sussex | 1.03 | 1.04 | 1.07 |
Union | 1.01 | 1.03 | 1.06 |
Warren | 1.02 | 1.07 | 1.15 |
Table 6: Future Precipitation Change Factors | |||
|---|---|---|---|
County | Future Precipitation Change Factors | ||
2-Year Design Storm | 10-Year Design Storm | 100-Year Design Storm | |
Atlantic | 1.22 | 1.24 | 1.39 |
Bergen | 1.20 | 1.23 | 1.37 |
Burlington | 1.17 | 1.18 | 1.32 |
Camden | 1.18 | 1.22 | 1.39 |
Cape May | 1.21 | 1.24 | 1.32 |
Cumberland | 1.20 | 1.21 | 1.39 |
Essex | 1.19 | 1.22 | 1.33 |
Gloucester | 1.19 | 1.23 | 1.41 |
Hudson | 1.19 | 1.19 | 1.23 |
Hunterdon | 1.19 | 1.23 | 1.42 |
Mercer | 1.16 | 1.17 | 1.36 |
Middlesex | 1.19 | 1.21 | 1.33 |
Monmouth | 1.19 | 1.19 | 1.26 |
Morris | 1.23 | 1.28 | 1.46 |
Ocean | 1.18 | 1.19 | 1.24 |
Passaic | 1.21 | 1.27 | 1.50 |
Salem | 1.20 | 1.23 | 1.32 |
Somerset | 1.19 | 1.24 | 1.48 |
Sussex | 1.24 | 1.29 | 1.50 |
Union | 1.20 | 1.23 | 1.35 |
Warren | 1.20 | 1.25 | 1.37 |
Note that these exemptions do not authorize any infringement of requirements in the Residential Site Improvement Standards for bicycle safe grates in new residential development (N.J.A.C. 5:21-4.18(b)2 and 7.4(b)1). |
DESIGN STANDARDS
When the spacing interval exceeds 40 feet, small ornamental trees can be spaced between the large trees. Trees shall be planted so as not to interfere with utilities, roadways, sidewalks, sight easements, or street lights. Tree location, landscaping design and spacing plan shall be approved by the Board as part of the landscape plan. |
Tree species, cultivar or variety | Diameter Exceeding |
|---|---|
A. concolor | 18" |
Acer negundo | 18" |
A. nigrum | 25" |
A. platanoides | 29" |
A. rubrum | 30" |
A. saccharinum | 35" |
A. saccharum | 25" |
Betula nigra | 30 |
Carya ovata | 15" |
Catalpa sepciosa | 25" |
Cedrus atlantica glauca | 15" |
Celtis Occidentalis | 13" |
Cryptomeria japonica | 13" |
Cornus florida | 13" |
Fagus grandiflora | 13" |
Fraxinus americana | 26" |
F. pennsylvanica | 25" |
Gleditsia triacanthos inermis | 24" |
Gymnocladus dioicus | 27" |
Ilex opaca | 12" |
Juglans nigra | 29" |
Juniperus virginiana | 12" |
Liquidambar styraciflua | 25" |
Liriodendron tulipifera | 40" |
Magnolia virginiana | 16" |
Malus Varieties | 15" |
Nyssa sylvatica | 25" |
Oxydendrum arboretum | 12" |
Picea abies | 25" |
P. pungens 'Glauca' | 18" |
Pinus echinata | 20" |
P. strobus | 24" |
Platanus occidentalis | 30" |
Populus deltoides | 21" |
Prunus serotina | 20" |
Quercus alba | 20" |
Q. bicolor | 25" |
Q. coccinea | 25" |
Q. palustris | 25" |
Q. phellos | 25" |
Q. prinus | 24" |
Q. rubra | 24" |
Q. stellata | 24" |
Q. veluntia | 25" |
Sciadopitys verticillata | 15" |
Taxodium distichum | 24" |
Ulmus americana | 34" |
Type of Area | Minimum Intensity Foot-candles | Average Intensity Foot-candles | Uniformity Ratio (1) |
|---|---|---|---|
General Street Lighting | 0.2 | 0.5 | 12:1 |
Shopping Center Parking | 0.4 | 0.8 | 12:1 |
Industrial Site Parking | 0.4 | 0.8 | 12:1 |
Commercial Parking | 0.5 | 1.0 | 15:1 |
Entrance and Exit Roads | 1.0 | 2.0 | 10:1 |
Residential Area Parking and Drive Areas | 0.2 | 0.5 | (2) |
(1) The Uniformity Ratio equals the maximum lighting level over the minimum lighting level. |
(2) Minimum levels shall be required in residential use only for townhouse, condominium, or other multifamily type of residential use. |
Such conditions, where present on a portion of a lot shall not be excluded when calculating the square footage required in any zoning district in order to satisfy the minimum lot size, and shall not deem the lot as unsuitable for development. |
6 Bedroom | 3.5 (4 spaces) |
7 Bedroom | 4.0 (4 spaces) |
8 Bedroom | 4.5 (4 spaces) |
9 Bedroom | 5.0 (5 spaces) |
10 Bedroom | 5.5 (5 spaces) |
Note: Basements shall be considered two bedrooms in determining the number of bedrooms in a dwelling and habitable attics shall be considered one bedroom in determining the number of bedrooms in a dwelling. [Ord. No. 2017-27 § 2] |
Uses or Function | Type of Sign Permitted | Other Regulations |
|---|---|---|
Identification | Ground, Wall | Notwithstanding size standards contained in this section, the maximum size of a sign shall not exceed four square feet, and four feet in height. |
Nameplate | Ground, Projecting, Wall | Notwithstanding size standards contained in this section, the maximum size of a sign shall not exceed one and one-half (1 1/2) square feet, and four feet in height. |
"No Solicitation" | Wall | Sign shall be located on or within two feet of front door and shall not exceed one square foot, and four feet in height. |
Uses or Function | Types of Sign Permitted | Other Regulations |
|---|---|---|
Real Estate Advertising | Ground | Only one per lot permitted on undeveloped lots |
Business | Ground and Wall | Only one type of sign permitted for each separate street frontage of a business occupancy.(1) |
Directory | Ground | Only two signs per lot are permitted at its main ingress or egress points |
Nameplate | Ground, Projecting, Wall | Only one type of sign permitted for each occupant of a lot. Notwithstanding this section, maximum sign area shall not exceed eight sq. ft. |
"No Solicitation" | Wall | Signs shall be located on or within two feet of front door and shall not exceed one square foot, and four feet in height. |
(1) If a wall of a building housing a business has exposure to a street but does not have frontage on the same street, one additional wall sign may be permitted on that wall. The height, area, dimensions, and construction of the sign shall be in accordance with all applicable requirements and limitations of this section. |
Abutting R.O.W. | |||
|---|---|---|---|
All Lanes of Traffic | Speed (mph) | Max Sign Area (SF) | Max Height (ft) |
2 | 15-25 | 15 | 5 |
30-40 | 35 | 6 | |
45-55 | 75 | 20 | |
4 | 30-40 | 50 | 18 |
45-55 | 120 | 22 | |
6 | 30-40 | 65 | 20 |
45-55 | 130 | 24 | |
Major development includes all developments that are part of a common plan of development or sale (for example, phased residential development) that collectively or individually meet any one or more of paragraphs 1, 2, 3, or 4 above. Projects undertaken by any government agency that otherwise meet the definition of "major development" but which do not require approval under the Municipal Land Use Law, N.J.S.A. 40:55D-1 et seq., are also considered "major development." |
Table 1 Green Infrastructure BMPs for Groundwater Recharge, Stormwater Runoff Quality, and/or Stormwater Runoff Quantity | ||||
|---|---|---|---|---|
Best Management Practice | Stormwater Runoff Quality TSS Removal Rate (percent) | Stormwater Runoff Quantity | Groundwater Recharge | Minimum Separation from Seasonal High Water Table (feet) |
Cistern | 0 | Yes | No | — |
Dry well(a) | 0 | No | Yes | 2 |
Grass swale | 50 or less | No | No | 2(e) 1(f) |
Green roof | 0 | Yes | No | — |
Manufactured treatment device(a)(g) | 50 or 80 | No | No | Dependent upon the device |
Pervious paving system(a) | 80 | Yes | Yes(b) No(c) | 2(b) 1(c) |
Small-scale bioretention basin(a) | 80 or 90 | Yes | Yes(b) No(c) | 2(b) 1(c) |
Small-scale infiltration basin(a) | 80 | Yes | Yes | 2 |
Small-scale sand filter | 80 | Yes | Yes | 2 |
Vegetative Filter Strip | 60 to 80 | No | No | — |
(Notes corresponding to annotations(a) through(g) are found following Table 3) |
Table 2 Green Infrastructure BMPs for Stormwater Runoff Quantity (or for Groundwater Recharge and/or Stormwater Runoff Quality with a Waiver or Variance from N.J.A.C. 7:8-5.3) | ||||
|---|---|---|---|---|
Best Management Practice | Stormwater Runoff Quality TSS Removal Rate (percent) | Stormwater Runoff Quantity | Groundwater Recharge | Minimum Separation from Seasonal High Water Table (feet) |
Bioretention system | 80 or 90 | Yes | Yes(b) No(c) | 2(b) 1(c) |
Infiltration basin | 80 | Yes | Yes | 2 |
Sand filter(b) | 80 | Yes | Yes | 2 |
Standard constructed wetland | 90 | Yes | No | N/A |
Wet pond(d) | 50 to 90 | Yes | No | N/A |
(Notes corresponding to annotations(b) through(d) are found following Table 3) |
Table 3 BMPs for Groundwater Recharge, Stormwater Runoff Quality, and/or Stormwater Runoff Quantity only with a Waiver or Variance from N.J.A.C. 7:8-5.3 | ||||
|---|---|---|---|---|
Best Management Practice | Stormwater Runoff Quality TSS Removal Rate (percent) | Stormwater Runoff Quantity | Groundwater Recharge | Minimum Separation from Seasonal High Water Table (feet) |
Blue roof | 0 | Yes | No | N/A |
Extended detention basin | 40 to 60 | Yes | No | 1 |
Manufactured treatment device(h) | 50 or 80 | No | No | Dependent upon the device |
Sand filter(c) | 80 | Yes | No | 1 |
Subsurface gravel wetland | 90 | No | No | 1 |
Wet pond | 50 to 90 | Yes | No | N/A |
(Notes corresponding to annotations(b) through(d) are found following Table 3) |
Notes to Tables 1, 2, and 3: | |
(a) | Subject to the applicable contributory drainage area limitation specified at § 18-815.1.4O2; |
(b) | Designed to infiltrate into the subsoil; |
(c) | Designed with underdrains; |
(d) | Designed to maintain at least a ten-foot wide area of native vegetation along at least 50% of the shoreline and to include a stormwater runoff retention component designed to capture stormwater runoff for beneficial reuse, such as irrigation; |
(e) | Designed with a slope of less than 2%; |
(f) | Designed with a slope of equal to or greater than 2%; |
(g) | Manufactured treatment devices that meet the definition of green infrastructure at § 18-815.1.2; |
(h) | Manufactured treatment devices that do not meet the definition of green infrastructure at § 18-815.1.2. |
Best Management Practice | Maximum Contributory Drainage Area |
|---|---|
Dry well | 1 acre |
Manufactured treatment device | 2.5 acres |
Pervious pavement systems | Area of additional inflow cannot exceed three times the area occupied by the BMP |
Small-scale bioretention systems | 2.5 acres |
Small-scale infiltration basin | 2.5 acres |
Small-scale sand filter | 2.5 acres |
Table 4 - Water Quality Design Storm Distribution | |||||
|---|---|---|---|---|---|
Time (minutes) | Cumulative Rainfall (inches) | Time (minutes) | Cumulative Rainfall (inches) | Time (minutes) | Cumulative Rainfall (inches) |
1 | 0.00166 | 41 | 0.1728 | 81 | 1.0906 |
2 | 0.00332 | 42 | 0.1796 | 82 | 1.0972 |
3 | 0.00498 | 43 | 0.1864 | 83 | 1.1038 |
4 | 0.00664 | 44 | 0.1932 | 84 | 1.1104 |
5 | 0.00830 | 45 | 0.2000 | 85 | 1.1170 |
6 | 0.00996 | 46 | 0.2117 | 86 | 1.1236 |
7 | 0.01162 | 47 | 0.2233 | 87 | 1.1302 |
8 | 0.01328 | 48 | 0.2350 | 88 | 1.1368 |
9 | 0.01494 | 49 | 0.2466 | 89 | 1.1434 |
10 | 0.01660 | 50 | 0.2583 | 90 | 1.1500 |
11 | 0.01828 | 51 | 0.2783 | 91 | 1.1550 |
12 | 0.01996 | 52 | 0.2983 | 92 | 1.1600 |
13 | 0.02164 | 53 | 0.3183 | 93 | 1.1650 |
14 | 0.02332 | 54 | 0.3383 | 94 | 1.1700 |
15 | 0.02500 | 55 | 0.3583 | 95 | 1.1750 |
16 | 0.03000 | 56 | 0.4116 | 96 | 1.1800 |
17 | 0.03500 | 57 | 0.4650 | 97 | 1.1850 |
18 | 0.04000 | 58 | 0.5183 | 98 | 1.1900 |
19 | 0.04500 | 59 | 0.5717 | 99 | 1.1950 |
20 | 0.05000 | 60 | 0.6250 | 100 | 1.2000 |
21 | 0.05500 | 61 | 0.6783 | 101 | 1.2050 |
22 | 0.06000 | 62 | 0.7317 | 102 | 1.2100 |
23 | 0.06500 | 63 | 0.7850 | 103 | 1.2150 |
24 | 0.07000 | 64 | 0.8384 | 104 | 1.2200 |
25 | 0.07500 | 65 | 0.8917 | 105 | 1.2250 |
26 | 0.08000 | 66 | 0.9117 | 106 | 1.2267 |
27 | 0.08500 | 67 | 0.9317 | 107 | 1.2284 |
28 | 0.09000 | 68 | 0.9517 | 108 | 1.2300 |
29 | 0.09500 | 69 | 0.9717 | 109 | 1.2317 |
30 | 0.10000 | 70 | 0.9917 | 110 | 1.2334 |
31 | 0.10660 | 71 | 1.0034 | 111 | 1.2351 |
32 | 0.11320 | 72 | 1.0150 | 112 | 1.2367 |
33 | 0.11980 | 73 | 1.0267 | 113 | 1.2384 |
34 | 0.12640 | 74 | 1.0383 | 114 | 1.2400 |
35 | 0.13300 | 75 | 1.0500 | 115 | 1.2417 |
36 | 0.13960 | 76 | 1.0568 | 116 | 1.2434 |
37 | 0.14620 | 77 | 1.0636 | 117 | 1.2450 |
38 | 0.15280 | 78 | 1.0704 | 118 | 1.2467 |
39 | 0.15940 | 79 | 1.0772 | 119 | 1.2483 |
40 | 0.16600 | 80 | 1.0840 | 120 | 1.2500 |
R = A + B - (A x B)/100 | ||
Where: | ||
R | = | total TSS Percent Load Removal from application of both BMPs, and |
A | = | the TSS Percent Removal Rate applicable to the first BMP |
B | = | the TSS Percent Removal Rate applicable to the second BMP. |
Table 5: Current Precipitation Adjustment Factors | |||
|---|---|---|---|
County | Current Precipitation Adjustment Factors | ||
2-Year Design Storm | 10-Year Design Storm | 100-Year Design Storm | |
Atlantic | 1.01 | 1.02 | 1.03 |
Bergen | 1.01 | 1.03 | 1.06 |
Burlington | 0.99 | 1.01 | 1.04 |
Camden | 1.03 | 1.04 | 1.05 |
Cape May | 1.03 | 1.03 | 1.04 |
Cumberland | 1.03 | 1.03 | 1.01 |
Essex | 1.01 | 1.03 | 1.06 |
Gloucester | 1.05 | 1.06 | 1.06 |
Hudson | 1.03 | 1.05 | 1.09 |
Hunterdon | 1.02 | 1.05 | 1.13 |
Mercer | 1.01 | 1.02 | 1.04 |
Middlesex | 1.00 | 1.01 | 1.03 |
Monmouth | 1.00 | 1.01 | 1.02 |
Morris | 1.01 | 1.03 | 1.06 |
Ocean | 1.00 | 1.01 | 1.03 |
Passaic | 1.00 | 1.02 | 1.05 |
Salem | 1.02 | 1.03 | 1.03 |
Somerset | 1.00 | 1.03 | 1.09 |
Sussex | 1.03 | 1.04 | 1.07 |
Union | 1.01 | 1.03 | 1.06 |
Warren | 1.02 | 1.07 | 1.15 |
Table 6: Future Precipitation Change Factors | |||
|---|---|---|---|
County | Future Precipitation Change Factors | ||
2-Year Design Storm | 10-Year Design Storm | 100-Year Design Storm | |
Atlantic | 1.22 | 1.24 | 1.39 |
Bergen | 1.20 | 1.23 | 1.37 |
Burlington | 1.17 | 1.18 | 1.32 |
Camden | 1.18 | 1.22 | 1.39 |
Cape May | 1.21 | 1.24 | 1.32 |
Cumberland | 1.20 | 1.21 | 1.39 |
Essex | 1.19 | 1.22 | 1.33 |
Gloucester | 1.19 | 1.23 | 1.41 |
Hudson | 1.19 | 1.19 | 1.23 |
Hunterdon | 1.19 | 1.23 | 1.42 |
Mercer | 1.16 | 1.17 | 1.36 |
Middlesex | 1.19 | 1.21 | 1.33 |
Monmouth | 1.19 | 1.19 | 1.26 |
Morris | 1.23 | 1.28 | 1.46 |
Ocean | 1.18 | 1.19 | 1.24 |
Passaic | 1.21 | 1.27 | 1.50 |
Salem | 1.20 | 1.23 | 1.32 |
Somerset | 1.19 | 1.24 | 1.48 |
Sussex | 1.24 | 1.29 | 1.50 |
Union | 1.20 | 1.23 | 1.35 |
Warren | 1.20 | 1.25 | 1.37 |
Note that these exemptions do not authorize any infringement of requirements in the Residential Site Improvement Standards for bicycle safe grates in new residential development (N.J.A.C. 5:21-4.18(b)2 and 7.4(b)1). |