Commercial Plan Form

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Project Title: ______________________________________________
Type of Project [ ] New              [ ] Expansion                 [ ]Exempt

Basis for exemption_________________________________________

 

Part I. Riparian Buffers

Area includes riparian buffers?     [ ] No                [ ] Yes              [ ]Exempt

If yes,                                                   [ ] 50 foot          [ ] 100 foot

River Basin?                                          [ ] Neuse           [ ] Cape Fear

Basis for exemption_________________________________________

Show buffers on site plan.


Part II. Nitrogen Calculations (Method 2, Appendix C):

a.       Site Information

Total area of property incl. R/W

 

 

Denuded Area

 

 

Impervious Area incl. R/W

 

 

Managed open space

 

 

Protected open space

 

 

 

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

 

 

 







 

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

 

Impervious Area

 

21.20

 

TOTAL

 

 

 

 

Nitrogen Loading Rate (lbs/ac/yr) = __________

 

Proposed BMP(s) ________________________

Nitrogen Load after BMPs = ________________

Nitrogen Load Offset by Payments = _________

Net change in on-site N Load = _____________

 

Part III. Control of Peak Stormwater Flow (for 1 year, design storm)

Calculated Pre-development Peak Flow    __________

Calculated Post-development Peak Flow__________

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).