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 Table 1.1.11 Concentrations (mg/l) of Conventional Water Quality Parameters
in First Flush Runoff Samples
Nitrogen Forms
Phosphorus
Solids
5520B
353.1
365.4
2540C
2540D
Methoda
5210B
410.4
4500
351.2
365.4
Oil &
NO2 +
Dissolve
Dissolve Suspende
Site
BOS5
COD
NH3
TKN
Total
Grease
NO3
d
d
d
CR I
NA
76.0
<5
<0.04
1.29
2.0
0.55
0.31
170
362
FM I
2.7
5.6
<5
0.04
0.37
0.4
0.24
0.14
50
105
FM II
14.3
130.0
<5
0.15
0.52
1.7
0.18
0.14
102
76
JY I
NA
56.0
6
0.08
3.23
1.4
0.49
0.28
108
198
JY II
5.5
41.4
<5
0.08
3.15
1.2
0.26
<0.05
208
2770
LF I
13.0
23.9
<5
0.72
0.94
1.6
0.32
0.09
85
310
LF II
520.0
870.0
<5
6.40
0.44
7.0
0.87
0.31
1570
228
MF I
9.9
22.2
<5
0.23
0.65
1.0
0.70
0.24
166
668
MF II
52.6
260.0
<5
0.89
2.28
5.8
0.69
0.62
166
128
PM I
4.9
35.3
<5
<0.04
0.22
0.8
0.35
0.13
121
143
PM II
NA
28.9
<5
0.12
0.42
0.5
0.39
0.27
48
24
SR I
28.9
230.0
31
0.50
0.20
3.8
0.18
<0.05
434
88
SR II
43.5
510.0
<5
0.05
0.40
2.6
1.31
0.61
454
627
SR III
130.0
530.0
28
2.30
0.13
15.6
2.88
1.01
322
402
TM I
NA
20.4
<5
0.20
0.77
0.7
0.22
0.12
46
<1
TM II
NA
11.3
<5
0.04
0.30
0.4
0.29
0.06
72
6
VM I
NA
64.0
6
<0.04
0.58
1.4
0.40
0.33
65
38
VM II
28.9
130.0
51
0.04
0.56
1.1
0.41
0.28
36
93
WP I
NA
42.9
<5
0.04
0.55
1.8
1.06
0.55
138
912
WP II
14.6
42.9
<5
<0.04
0.29
3.5
4.21
2.17
150
3260
Meanb
6
0.6
0.9
2.7
0.8
0.4
225.6
521.9
156.6 + 221.8
+ 14
+ 1.4
+ 0.9
+ 3.4
+ 1.0
+ 0.5
+ 329.8
+ 868.2
0.05
0.30
0.5
0.05
NC Problem
65
0.68
1.5
0.33
100
NURP EMCf
a
US EPA, 1983a and APHA et al., 1989
b
Means + SD
c
Median event mean concentrations from the Nationwide Urban Runoff Program (US EPA 1983b)
1.1-35
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