Project Title:
______________________________________________
Area includes riparian buffers? [ ] No [ ]
Yes [ ]Exempt
If yes, [
] 50 foot [ ] 100 foot
River Basin? [
]
Basis for exemption_________________________________________
Show buffers on site plan.
Part II. Nitrogen Calculations (Method 1, Appendix C):
a. Subdivision information:
|
Number of lots |
|
|
Amount of Right-of-Way |
|
|
Total area of lots (excluding R/W and open space) |
|
|
Percent of Right-of-Way that is impervious area |
|
|
Number of lots/acre |
|
|
Amount of Right-of-Way |
|
|
Average lot size |
|
|
that is impervious area |
|
|
Impervious area per lot |
|
|
Total estimated impervious area |
|
|
b. Pre-development loading: |
Area |
TN
export coeff. |
TN
export from
use |
|
Type of Land Cover |
(acres) |
(lbs/ac/yr) |
(lbs/yr) |
|
Permanently protected undisturbed open
space (forest, unmown meadow) |
|
0.60 |
|
|
Permanently protected managed open space
(grass, landscaping, etc.) |
|
1.20 |
|
|
Impervious Area |
|
21.20 |
|
|
TOTAL |
|
|
|
Pre-development Nitrogen Loading Rate (lbs/ac/yr) =
__________
|
c. Post-development loading: |
Area |
TN
export coeff. |
TN
export from
use |
|
Type of Land Cover |
(acres) |
(lbs/ac/yr) |
(lbs/yr) |
|
Permanently protected undisturbed open
space (forest, unmown meadow) |
|
0.60 |
|
|
Permanently protected managed open space
(grass, landscaping, etc.) |
|
1.20 |
|
|
Right-of-Way (read TN export from Graph1) |
|
|
|
|
Lots (read TN export from Graph 2) |
|
|
|
|
TOTAL |
|
|
|
Post-development Nitrogen Loading Rate (lbs/ac/yr) =
__________
Proposed BMP(s) ________________________
Nitrogen Load after BMP = _________________
Nitrogen Load Offset by Payments = _________
Net change in on-site N Load = _____________ (Post BMP load less Pre-development N load)
Calculated
Calculated
Proposed BMP(s)____________________________
Post BMP Peak Flow _________________________
I, the undersigned, certify to the best of my knowledge
that the above information is correct (affix seal).