Land or Building Use
|
Minimum Standards
(number of spaces)
| |
---|---|---|
Garden apartment or multifamily dwelling
|
1 for each development of 50 or more units
| |
Retail commercial uses
|
1 for each 10,000 square feet of floor area
or major fraction thereof but in no case less than 1 per building
of 2,000 square feet of floor area or more
| |
Other business and commercial uses, places of
public assembly, schools
|
1 per building of 2,000 square feet of floor
area or more
| |
Manufacturing, industrial and warehouse uses
for principal building
|
1 for each 5,000 square feet of total floor
area or major fraction thereof, up to 10,000 square feet or major
fraction thereof in excess of the first 10,000 square feet
|
Standard
Cars
|
Compact
Cars
| ||||||||
---|---|---|---|---|---|---|---|---|---|
Angle
|
90°
|
60°
|
45°
|
30°
|
90°
|
60°
|
45°
|
30°
| |
L
|
18' 0"
|
18' 0"
|
18' 0"
|
18' 0"
|
17' 0"
|
17' 0"
|
17' 0"
|
17' 0"
| |
W
|
9' 0"
|
9' 0"
|
9' 0"
|
9' 0"
|
8' 6"
|
8' 6"
|
8' 6"
|
8' 6"
| |
A
|
24'
|
18'
|
13'
|
12'
|
24'
|
18'
|
13'
|
12'
| |
D
|
18' 0"
|
20' 1"
|
19' 1"
|
16' 9"
|
17' 0"
|
19' 0"
|
18' 0"
|
15' 10"
| |
P
|
9'
|
10' 5"
|
12' 9"
|
18' 0"
|
8' 6"
|
9' 10"
|
12' 0"
|
17' 0"
| |
O
|
2' 0"
|
1' 9"
|
1' 5"
|
1' 0"
|
1' 6"
|
1' 4"
|
1' 1"
|
0' 9"
| |
d
|
16' 0"
|
18' 4"
|
17' 8"
|
15' 9"
|
15' 6"
|
17' 8"
|
16' 11"
|
15' 1"
| |
Ds
|
18' 0"
|
17' 10"
|
15' 11"
|
12' 11"
|
17 '0"
|
16' 10"
|
15' 0"
|
12' 2"
|
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
|
60-80
|
No
|
No
|
—
|
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)
|
50-90
|
Yes
|
No
|
N/A
|
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
|
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 to Tables 1, 2, and 3:
| |
(a)
|
Subject to the applicable contributory drainage area limitation specified at Subsection E(2);
|
(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 Subsection B;
|
(h)
|
Manufactured treatment devices that do not meet the definition of "green infrastructure" at Subsection B.
|
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 - (AXB)/100
| ||
Where
| ||||
R
|
=
|
total TSS percent load removal from application
of both BMPs
| ||
A
|
=
|
the TSS percent removal rate applicable to the
first BMP
| ||
B
|
=
|
the TSS percent removal rate applicable to the
second BMP
|
Table 2: TSS Removal Rates for BMPs
| |
---|---|
Best Management Practice
|
TSS Percent Removal Rate
|
Bioretention Systems
|
90
|
Constructed Stormwater Wetland
|
90
|
Extended Detention Basin
|
40-60
|
Infiltration Structure
|
80
|
Manufactured Treatment Device
|
See Subsection F(3)
|
Sand Filter
|
80
|
Vegetative Filter Strip
|
60-80
|
Wet Pond
|
50-90
|
Table 5: Current Precipitation Adjustment Factors
| |||
---|---|---|---|
County
|
Two-year Design Storm
|
Ten-year Design Storm
|
100-year Design Storm
|
Bergen
|
1.01
|
1.03
|
1.06
|
Passaic
|
1.00
|
1.02
|
1.05
|
Table 6: Future Precipitation Change Factors
| |||
---|---|---|---|
County
|
Two-year Design Storm
|
Ten-year Design Storm
|
100-year Design Storm
|
Bergen
|
1.20
|
1.23
|
1.37
|
Passaic
|
1.21
|
1.27
|
1.50
|