HomeMy WebLinkAboutNitrogen Calculations - Cluster DevelopmentRESIDENTIAL NITROGEN LOADING CALCULATIONS - CLUSTER DEVELOPMENT
Home: 6160 GPD Davenport Companies #8807
Impervious Surfaces: Roof Area: 18,032 it 2 Paving Area: 53,678 ft'
Lot Size: 666,507 it,
Natural Area: 594,797 ft' Lawn Area: 70,000 ft'
Title V Flow:
WASTEWATER
Title V
56 bedrooms x 110 x 3.785
bedroom gaT—
Actual (assume 2.5 people/unit average occupancy within the town)
23,315.6 Ud x 35 mg = 816,046.0 mg/d
56 bedrooms
x 110 x 3.785 x
2.5
= 7,286.1 Ud x 35 mg = 255,014.4 mg/d
yr
bedroom gal
8
L
IMPERVIOUS SURFACES
111,086.6 L
Actual 255,014.4 +
3,497.7
Roof
1 yr
x 454,000 x
0.25 = 65,301.4 mg/d
18,032 x 40 in
x it x 28.32 L x
1 yr
= 4663.6 Ud x 0.75 mg = 3,497.7 mg/d
yr
12 In fP
365 d
L
Paving
53,678 x 40 In x
it
x 28.32 L x
1 yr = 13882.7 Ud x 1.5 mg = 20,824.1 mg/d
yr
12 in
it,
365 d L
LAWN
111,086.6 L
Actual 255,014.4 +
3,497.7
70,000 x 3lbs x
1 yr
x 454,000 x
0.25 = 65,301.4 mg/d
1,000 ft'/yr
365 d
Ib
95,057.1 L
NATURAL
666,507 - 71,710 = 594,797 fl'
594,797 x 1.5 x 28.32 L x 1 yr - 69,224.6 Ud
yr it, 365 d
SUMMARY
Title V Flow 816,046.0 +
3,497.7
+ 20,824.1 +
65,301.4 mg =
905,669.2 mg =
23,315.6 +
4,663.6
+ 13,882.7 +
69,224.6 L
111,086.6 L
Actual 255,014.4 +
3,497.7
+ 20,824.1 +
65,301.4 mg =
344,637.6 mg =
7,286.1 +
4,663.6
+ 13,882.7 +
69,224.6 L
95,057.1 L
Final Calculation
8.15 ppm
3.63 ppm
5.89 ppm