HomeMy WebLinkAboutNitrogen Calculations - Bass River WatershedRESIDENTIAL NITROGEN LOADING CALCULATIONS - BASS RIVER WATERSHED
Home: 3080 GPD Davenport Companies #8807
Impervious Surfaces: Roof Area: 10,950 if' Paving Area: 32,438 If
Lot Size: 482,413 If
Natural Area: 439,025 It Lawn Area: 40,000 ft'
Title V Flow:
WASTEWATER
Title V
2,124.0
+ 12,584.2 +
37,315.1 mg =
460,046.2
mg = 6.22 ppm
11,657.8 +
2,832.0
28 bedrooms
x
110 x 3.785
L
= 11,657.8 Ud
x 35 mg =
408,023.0
mg/d
179,530.4
mg = 2.72 ppm
bedroom g�—
2,832.0
+ 82389.4 +
51,095.3 L
65,959.8
L
Actual (assume 2.5 people/unit average occupancy within the town)
28 bedrooms
x
110 x 3.785 x
2.5
= 3,643.1 Ud
x 35 mg =
127,507.2
mg/d
bedroom gal
8
L
IMPERVIOUS SURFACES
Roof
10,950 x 401n
x
it x 28.32 L x
1 yr
= 2832.0 Ud
x 0,75 mg =
2,124.0
mg/d
yr
12 In it'
365 d
L
Paving
32,438 x 40 in
x
fl x 28.32 L x
1 yr
= 8389.4 Ud
x 1.5 mg =
12,584.2
mg/d
yr
12 In fP
365 d
L
LAWN
40,000 x 3lbs
x
1 yr x 454,000 x
0.25
=
37,315.1
mg/d
1,000 ft'/yr
365 d Ib
NATURAL
482,413 - 43,388
=
439,025 if
439,025 x 1.5
x
28.32 L x 1 yr –
51,095.3
Ud
Yr
ft' 365 of
SUMMARY
Title V Flow 408,023.0 +
2,124.0
+ 12,584.2 +
37,315.1 mg =
460,046.2
mg = 6.22 ppm
11,657.8 +
2,832.0
+ 8,389.4 +
51,095.3 L
73,974.5
L
Actual 127,507.2 +
2,124.0
+ 12,584.2 +
37,315.1 mg =
179,530.4
mg = 2.72 ppm
3,643.1 +
2,832.0
+ 82389.4 +
51,095.3 L
65,959.8
L
Final Calculation = 4.47 ppm