20051881 Ver 1_Stormwater Info_20051115

JA,MESTOWN ENGINEERING GROUP, INC.
CIVIL • SANITARY • SURVEYING pp
= 0? ? D
C 117 East Main Street • P.O. Box 365 • Jamestom n, N.C. 27 F ? (;z'
r inc. Telephone [phone] Fax [phone]
Email: .I1:c1NCC?AOL.con[ NOV 1 5 2005
Charles J. Junes, PE & PLS
Daniel W. Pritehctt, PE & PLS
DrivR '4A7E.I2 ?;:AUTY
!'iETL,V+J-S 1.0 STMMWATER 6FW.'CH
November 14, 2005
Re: Piedmont Crossing
401 Permit Supplemental
Information
JEG Number 2004-068
Mr. Samuel Aghimien
NC Division of Water Quality
2321 Crabtree Blvd.
Raleigh, N.C. 27604
Dear Mr. Aghimien:
Per our conversation on Tuesday, November 8, 2005, I have enclosed the following
information you requested:
• Maintenance/operation agreements for (4) wet detention ponds, (2) bio-
retention areas, and (2) level spreaders.
• 401 Wet Detention Basin Worksheets for the four ponds, Bio-Retention Area
Worksheets for the two bio-retention areas, and Level Spreader Worksheets
for the two level spreaders.
• Landscape/plant design plan for the two bio-retention areas.
If any additional information is needed or if you have any questions, please feel free to
contact me at [phone].
Yours very truly,
JAMESTOWN ENGINEERING GROUP, INC.
?a4?J &'Vt-
Ravindra Bissram, P.E.
Janus 13. Ste%en,. PLS • Rich Glover, EIT • James D. Terrell, PIS
IT
WET [WETLAND] DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
[Wetland maintenance wording is bracketed. Please modify the document as appropriate.]
The wet [wetland] detention basin system is defined as the wet [wetland] detention basin, pretreatment
including forebays and the vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet [wetland] detention basin system for sediment accumulation, erosion, trash
accumulation, vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet [wetland] detention basin system semi-annually or when
depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be
disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact
water quality (i.e. stockpiling near a wet [wetland] detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
?GDimcnjr
When the permanent-pool. depth reads[-t- •"?i.c?feet in the main pond, the sediment shall be removed.
[For stormwater wetlands: If the elevation of the marsh areas exceed the permanent pool elevation, the
sediment should be removed to design levels. This shall be performed by removing the upper 6 inches of
soil and stockpiling it. Then the marsh area shall be excavated six inches below design elevations.
Afterwards the stockpiled soil should be spread over the marsh surface. The soil should not be stockpiled
for more than two weeks.]
SC' D i,n t;N T
When the permanent-pool depth reads L S'( c.efeet•in the forebay [and micro-pool], the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation ?cH3,s
Sediment Lvation . 240, 75%
--------- - Sediment Removal Elevation '37,? _
Bottom E e.1,C orfi4.5. --- -------?---------------------------------- --?-'?-g'-? of
FOREBAY MAIN POND
`k i 11" V?,z,, c,_ ,Acs cL `S '. (:' `nom.. Srcc.tiGc tEt-v=
(1 LkS4- LZ C.le(Ln u.k ??lt;cL t-' ZtDlc'kt1 q GL , V6%(a Cti '5, k,' ?,% t? e_ Ptn .? (?l,ic j'C In Oie k,1cun
?Git.I? ?2 i??Q,S ,11 t? ?cu.(li?Y ??{ ?? ? ?fC?•1 ?G?i:i?:?Y iaC'{'j'C??7),
Page 1 of 2
4 1-
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
[For wetlands: Wetland planting densities in the marsh areas should be maintained by replanting bare
areas as needed. Wetland plants should be encouraged to grow in the marsh areas.]
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet [wetland] detention basin system shall be maintained in good working order.
8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All
accumulated sediment and debris shall be removed from the structure, and a level elevation shall be
maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or
replanted as necessary.
ct)t?
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party. 41'
Print name: 1z ? L - -/, ?/Z 4 Title:

Address
ySCJ J

Phone: 23 ( - 8?- `7/- 3 -?- S?21
Signature:
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
I, Pearlie R. Hall, Jr. , a Notary Public for the State of North Carolina
County of Gni lford , do hereby certify that
Ken Lindholm
personally appeared before me this 1n day of nTmu mhor , mom , and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
pEARLiE R.
t3()'TARY Pt3L? IC
etllL'FORD COUhi5 I ,
ec ^?`? ? rzs 14, :?so
SEAL
C?J
My commission expires January 14, 2010
Page 2 of 2

Project No. D
(to be provided by DTYQ)
DIVISION OF WATER QUALITY - 401 WET DETENTION BASIN WORKSHEET
DW Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement. An incomplete submittal package will result in a request for additional
information and will substantially delay final review and approval of the project.
1. PROJECT INFORMATION (please complete the following information):
Project Name : ?t e-drAon} rossina
Contact Person: Wendel duarbu Phone Number: (10t ) 77?- q}o! '
For projects with multiple basins, specify which basin this worksheet applies to: P00e 4.1 CL111kA'irht S'AW;Vi'>;n)
Basin Bottom Elevation 63q ft.
Pennanent Pool Elevation 813. S ft.
Temporary Pool Elevation 81f5- b ft.
(average elevation of the floor of the basin)
(elevation of the orifice invert out)
(elevation of the outlet structure invert in)
Permanent Pool Surface Area sq. ft. (water surface area at permanent pool elevation)
Drainage Area Iq.3 ac. (on-site and off-site drainage to the basin)
Impervious Area 6. y8 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume _&2W cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume Q5. 27b cu. ft. (volume detained on top of the pennanent pool)
Forebay Volume cu. ft.
SA/DA used 1• o? 040 (surface area to drainage area ratio)
Diameter of Orifice 3/ " in. (draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Enviromnent, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have
been met and supporting documentation is attached. If a requirement has not been met, attach an explanation of
wiry.
A licants 16ials
art The temporary pool controls runoff from the 1 inch storm event.
The basin length to width ratio is greater than 3:1.
The basin side slopes are no steeper than 3:1.
PLANJIFTOJA submerged and vegetated perimeter shelf at less than 6:1 is provided.
1l? Vegetation to the permanent pool elevation is specified.
An emergency drain is provided to drain the basin.
1G _ The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
The temporary pool draws down in 2 to 5 days.
The forebay volume is approximately equal to 20% of the total basin volume.
Sediment storage is provided in the permanent pool.
Access is provided for maintenance.
A minimum 30-foot vegetative filter is provided at the outlet.
A site specific operation and maintenance (O&M) plan is provided.
h A vegetation management/mowing schedule is provided in the O&M plan.
Semi-annual inspections are specified in the O&M plan.
!- - - A debris check is specified in the O&M plan to be performed after every storm event.
--??' A specific sediment clean-out benchmark is listed (elevation or depth) in O&M plan.
A responsible party is designated in the O&M plan.
FORM SWG100 09/97 Page 1 of I
.'& c
Form SWG100
Attachment 1
For Pond #1, a submerged and vegetated perimeter shelf is not provided.
Instead of having side slopes of 3:1, slopes were flattened to 4:1. From
flattening the side slopes to 4:1 and removing the shelf, the surface area at
the normal pool elevation increased, thus enhancing water treatment.
t WET [WETLAND] DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
[Wetland maintenance wording is bracketed. Please modify the document as appropriate.]
The wet [wetland] detention basin system is defined as the wet [wetland] detention basin, pretreatment
including forebays and the vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet [wetland] detention basin system for sediment accumulation, erosion, trash
accumulation, vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet [wetland] detention basin system semi-annually or when
depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be
disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact
water quality (i.e. stockpiling near a wet [wetland] detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the pSe?erent-pool depth reads LL??irl,c feet in the main pond, the sediment shall be removed.
[For stormwater wetlands: If the elevation of the marsh areas exceed the permanent pool elevation, the
sediment should be removed to design levels. This shall be performed by removing the upper 6 inches of
soil and stockpiling it. Then the marsh area shall be excavated six inches below design elevations.
Afterwards the stockpiled soil should be spread over the marsh surface. The soil should not be stockpiled
for more than two weeks.]
?Dim??3r
When the per-manent-pool depth reads feet in the forebay [and micro-pool], the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
V Permanent Pool Elevation t 5o,.
Sediment moval EdaS7! -------Sedime nt Removal ElevationBottom E vation -------------------------- V it -
7- c'rT4 Bottom F1 vation o
`c,?3:o ,c??Mi uc
FOREBAY MAIN POND
•k 7uN?) ?r Z W,S hk?? ???t5tu "l Lk;A4 N '". `i t `t_,i:CMV)L;w STCe4kc-JC Zcr?
The SWctacic -j'Lcn
ti?nuSr ?JC CL01"Z-V To 1 C,?C??IMCy L-:L, '61iri. C vZ 4' t Cu.vl 0' tpci'jo '")j
IlE'1'CU?IM,)TCLy 3.`? ! 1(1 •}hi! (?c?.:ll I?C?C,.17,
Page 1 of 2
5. ", Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
[For wetlands: Wetland planting densities in the marsh areas should be maintained by replanting bare
areas as needed. Wetland plants should be encouraged to grow in the marsh areas.]
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet [wetland] detention basin system shall be maintained in good working order.
8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All
accumulated sediment and debris shall be removed from the structure, and a level elevation shall be
maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or
replanted as necessary.
Coo .u 2
1 acknow-ied-ge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible part/y.
Print name: e- l .-?.n N h r, //n
Title: 1/1 - -- -? --ter
Address: `15'O 5<?fa cam;<? r ?? ?, /)[e z"?
Phone: 3 -3 3 2, f?
Signature:
Date: //- U
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
I, Ponr1 i o rz u-,1 I , jr- , a Notary Public for the State of Nnrt-h Carol i na ,
County of Guilford , do hereby certify that Ken Lindholm
personally appeared before me this 10 day of November , 2005 , and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
i-ZOTAV
C-3liLMVID COURT.(: , V-
1A 1=
SEAL

?-FA E R. MALL, R.
I'SDTARY PUDUC
CUILMD COUMr, , no
rVros A-a 14, Z`0410
My commission expires January, 2010
Page 2 of 2
Project No. DWQ (to be provided by DIFQ)
DIVISION OF WATER QUALITY - 401 WET DETENTION BASIN WORKSHEET
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement. An incomplete submittal package will result in a request for additional
information and will substantially delay final review and approval of the project.
1. PROJECT INFORMATION (please complete the following information):
Project Name : R lmo t ,,ro5si49
Contact Person: Andell Dvprb„ Phone Number: ( 700 ) 720-940.5
For projects with multiple basins, specify which basin this worksheet applies to: E06 FonA AI 2 L ilikk1'cld Smt dlyklw_)
Basin Bottom Elevation 94S.D ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 0.L4 ft. (elevation of the orifice invert out)
Temporary Pool Elevation $52.3 ft. (elevation of the outlet structure invert in)
Permanent Pool Surface Area I 7iv3 sq. ft. (water surface area at permanent pool elevation)
Drainage Area (J?- ac. (on-site and off-site drainage to the basin)
Impervious Area f?, CS ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
1411q 21 cu. ft.
3 („?_ 4 cu. ft.
-7tp cu. ft.
(combined volume of main basin and forebay)
(volume detained on top of the permanent pool)
SA/DA used
Diameter of Orifice
2.03'/.
LZ) I Vy in.
(surface area to drainage area ratio)
(draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have
been met and supporting documentation is attached. I fa requirement has not been met, attach an explanation of
why.
The temporary pool controls runoff from the 1 inch storm event.
The basin length to width ratio is greater than 3:1.
The basin side slopes are no steeper than 3:1.
A submerged and vegetated perimeter shelf at less than 6:1 is provided.
)l Vegetation to the permanent pool elevation is specified.
An emergency drain is provided to drain the basin.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
The temporary pool draws down in 2 to 5 days.
The forebay volume is approximately equal to 20% of the total basin volume.
-? Sediment storage is provided in the permanent pool.
Access is provided for maintenance.
-%A minimum 30-foot vegetative filter is provided at the outlet.
A site specific operation and maintenance (O&M) plan is provided.
A vegetation management/mowing schedule is provided in the O&M plan.
Semi-annual inspections are specified in the O&M plan.
A debris check is specified in the O&M plan to be performed after every storm event.
A specific sediment clean-out benchmark is listed (elevation or depth) in O&M plan.
A responsible party is designated in the O&M plan.
FORM SWG100 09/97 Page 1 of 1
WET [WETLAND] DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
[Wetland maintenance wording is bracketed. Please modify the document as appropriate.]
The wet [wetland] detention basin system is defined as the wet [wetland] detention basin, pretreatment
including forebays and the vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet [wetland] detention basin system for sediment accumulation, erosion, trash
accumulation, vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet [wetland] detention basin system semi-annually or when
depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be
disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact
water quality (i.e. stockpiling near a wet [wetland] detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
7??1m?Nr
When the permanent-pool depth reads Ci, rtll,,C; feet in the main pond, the sediment shall be removed.
[For stormwater wetlands: If the elevation of the marsh areas exceed the permanent pool elevation, the
sediment should be removed to design levels. This shall be performed by removing the upper 6 inches of
soil and stockpiling it. Then the marsh area shall be excavated six inches below design elevations.
Afterwards the stockpiled soil should be spread over the marsh surface. The soil should not be stockpiled
for more than two weeks.]
v 10% u0'( When the peFmanent-pool. depth reads feeHn the forebay [and micro-pool], the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation S'I11:1
tir 4`i•s
Sediment moval El. 4e,.s 75 a
----------------- ------ Sediment Removal Elevation- _'6H --5 7r%
------------------------------------- ------ ?c?'?:c=
Bottom E vation i i_? -o /o Bottom Elevation bttc
FOREBAY ` MAIN POND
T:ti ?? u3 X10.5 4?.C?, k_k-'icph l,%?thia 5? DIM?fJ? 71 C.??C1 ZL'tl%, ..t?? S1G??c=,Z
ML1 r tae G_GNNcd
Page 1 of 2
f S. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
[For wetlands: Wetland planting densities in the marsh areas should be maintained by replanting bare
areas as needed. Wetland plants should be encouraged to grow in the marsh areas.]
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet [wetland] detention basin system shall be maintained in good working order.
8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All
accumulated sediment and debris shall be removed from the structure, and a level elevation shall be
maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or
replanted as necessary.
vc'-eJV n-i
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party. /
Print name: ??- Z-
`
Title:
Address:
Phone:
Signature
i?I e- e-- c--
3G3
e-r
fc r/'?

Date: 11-10-0-5-
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
I, Pearlie R. Hall, Jr. , a Notary Public for the State of North Carolina ,
County of Guilford , do hereby certify that uQn T i ndLQ m
personally appeared before me this 10 day of November , 2005 , and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
P£ARLIE R. HALL, JR.
NOTARY PUMIC
OUILFORD CQUMYY, ice`
Za 14, M
SEAL

My commission expires January 14, 2010
Page 2 of 2
Project No. DWQ (to be provided by Dil'Q)
DIVISION OF WATER QUALITY - 401 WET DETENTION BASIN WORKSHEET
DWQ Stonnwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement. An incomplete submittal package will result in a request for additional
information and will substantially delay final review and approval of the project.
I. PROJECT INFORMATION (please complete the following information):
Project Name : lei dmonk CroSSina
Contact Person: wtndtl1 tlo'erb, Phone Number: (10q ) 72p-q*6
For projects with multiple basins, specify which basin this worksheet applies to: we-T pond-0a
Basin Bottom Elevation 943 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation Sgq.S ft. (elevation of the orifice invert out)
Temporary Pool Elevation 850 , S ft. (elevation of the outlet structure invert in)
QDYID?1 A'!?
Permanent Pool Surface Area 07 to y4-sq. ft. (water surface area at permanent pool elevation)
Drainage Area 14. ,8o ac. (on-site and off-site drainage to the basin)
Impervious Area 5.-15 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume (Teo a. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 3n rzi o cu. ft. (volume detained on top of the permanent pool)
Forebay Volume 1'1, 5 no t cu. ft.
SAIDA used 1. b9 % (surface area to drainage area ratio)
Diameter of Orifice (2) 1 We " in. (draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have
been met and supporting documentation is attached. Ifa requirement has not been met, attach an explanation of
why.
The temporary pool controls runoff from the 1 inch storm event.
l The basin length to width ratio is greater than 3:1.
The basin side slopes are no steeper than 3:1.
A submerged and vegetated perimeter shelf at less than 6:1 is provided.
' Vegetation to the permanent pool elevation is specified.
i An emergency drain is provided to drain the basin.
J The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
V- ' The temporary pool draws down in 2 to 5 days.
The forebay volume is approximately equal to 20% of the total basin volume.
Sediment storage is provided in the permanent pool.
Access is provided for maintenance.
A minimum 30-foot vegetative filter is provided at the outlet.
A site specific operation and maintenance (O&M) plan is provided.
A vegetation management/mowing schedule is provided in the O&M plan.
li Semi-annual inspections are specified in the O&M plan.
A debris check is specified in the O&M plan to be performed after every storm event.
Y A specific sediment clean-out benchmark is listed (elevation or depth) in O&M plan.
A responsible party is designated in the O&M plan.
FORM SWG100 09/97 Page 1 of 1
It WET [WETLAND] DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
[Wetland maintenance wording is bracketed. Please modify the document as appropriate.]
- F)GPO?LN T Cf LSD>I? ??
The wet [wetland] detention basin system is defined as the wet [wetland] detention basin, pretreatment
including forebays and the vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet [wetland] detention basin system for sediment accumulation, erosion, trash
accumulation, vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet [wetland] detention basin system semi-annually or when
depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be
disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact
water quality (i.e. stockpiling near a wet [wetland] detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
"jGD101CU C It
When the permanent poo depth reads GL_ i `'H.o feet in the main pond, the sediment shall be removed.
[For stormwater wetlands: If the elevation of the marsh areas exceed the permanent pool elevation, the
sediment should be removed to design levels. This shall be performed by removing the upper 6 inches of
soil and stockpiling it. Then the marsh area shall be excavated six inches below design elevations.
Afterwards the stockpiled soil should be spread over the marsh surface. The soil should not be stockpiled
for more than two weeks.]
SLViM cNC
When the permanent- =Ldepth reads CL 16x1`.0 feet-in the forebay [and micro-pool], the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation ?,j <2
Sediment moval El.
Bottom E vation CTfL-a ;
FOREBAY
76%
Sediment Removal Elevation '&'7qx
Rnttnm Flpvntinn `BrI L0
MAIN POND
____-- G-- To CH
0
S ? l:C.ai:; c
tc?l?) t?y llas c; ?N Di.?-.ic;n;V-o WITH 11 3.0' `- t>1 zr-)C ?" iceAc?U ,
?, LFaLiIIfY L c;,J? ?ltL}?l
fit: jcetiNyG Z ? mLAS5 6C Yrlt1.U LLr?? lrc? Z? t h

Page 1 of 2
'?.;emove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
[For wetlands: Wetland planting densities in the marsh areas should be maintained by replanting bare
areas as needed. Wetland plants should be encouraged to grow in the marsh areas.]
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wet [wetland] detention basin system shall be maintained in good working order.
8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All
accumulated sediment and debris shall be removed from the structure, and a level elevation shall be
maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or
replanted as necessary.
0PQ-LiA
I ac now a ge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name:
Title: A4 .-, r ?-•c /
Address: y
Phone:
Signah
Date:

/- / O --C3 j
//-/0-0-3-
/-
/- _ /I/c 2-7 yNote: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
I, Pearlie /R. Hall, Jr. , a Notary Public for the State of North Carolina
County of Guilford , do hereby certify that Ken Lindholm
personally appeared before me this 10 day of November 2005, and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
PIARLIE R. HALL, JR.
NOTARY PUUIC
CIPLPQRD COUNTY, rX
C==3 CO= im 142M
SEAL

My commission expires jan i 903n
Page 2 of 2
Project No. DWQ (to be provided by DiVQ)
DIVISION OF WATER QUALITY - 401 WET DETENTION BASIN WORKSHEET
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement. An incomplete submittal package will result in a request for additional
information and will substantially delay final review and approval of the project.
1. PROJECT INFORMATION (please complete the following information):
Project Name : Zedmont C m"
Contact Person: Wendell 0s rbu Phone Number: ( X04 ) '77o -9 S
For projects with multiple basins, specify which basin this worksheet applies to: w FT Pozp -ti-14
Basin Bottom Elevation em.0 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 8'17.2 ft. (elevation of the orifice invert out)
Temporary Pool Elevation 678.8 ft. (elevation of the outlet structure invert in)
Permanent Pool Surface Area / 0, 817 sq. ft. (water surface area at permanent pool elevation)
Drainage Area 13 •o ac. (on-site and off-site drainage to the basin)
Impervious Area 4•9t, ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume Zcl,, Q 03 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 22.033 cu. ft. (volume detained on top of the permanent pool)
Forebay Volume //, (030 cu. ft.
SA/DA used W % (surface area to drainage area ratio)
Diameter of Orifice (2 1 3/ " in. (draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have
been met and supporting documentation is attached. If a requirement has not been met, attach an explanation of
why.
The temporary pool controls runoff from the 1 inch storm event.
The basin length to width ratio is greater than 3:1.
1! The basin side slopes are no steeper than 3:1.
I? f A submerged and vegetated perimeter shelf at less than 6:1 is provided.
Vegetation to the permanent pool elevation is specified.
An emergency drain is provided to drain the basin.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
The temporary pool draws down in 2 to 5 days.
The forebay volume is approximately equal to 20% of the total basin volume.
Sediment storage is provided in the permanent pool.
Access is provided for maintenance.
A minimum 30-foot vegetative filter is provided at the outlet.
A site specific operation and maintenance (O&M) plan is provided.
Y A vegetation management/mowing schedule is provided in the O&M plan.
Semi-annual inspections are specified in the O&M plan.
A debris check is specified in the O&M plan to be performed after every storm event.
A specific sediment clean-out benchmark is listed (elevation or depth) in O&M plan.
A responsible party is designated in the O&M plan.
FORM SWG100 09/97 Page 1 of 1
BIO-RETENTION AREA 91 OPERATION AND MAINTENANCE AGREEMENT
PIEDMONT CROSSING
Upon complction of site construction and home construction, bio-retention area sliall be constructed and
maintained. Prior to complction of construction activities, Erosion Control measures following NCDENR
BMP's shall be installed and maintained. During the lime which Bio-Retention Area #I is not installed, the
developer shall maintain a bond for the construction of the device. When installed, maintenance of the Bio-
Retention Area is as follows:
Description Method rre uenc Time of Year
Soil
Inspect and Repair Erosion Visual Monthly Montlily
Or anic Layer
Re-nmlch Any Void Areas By Hand Whenever Needed Wlicncvcr Needed
Remove Previous Mulch Layer By Hand Once Every Two or Spring
Before Applying New Layer Three Years
(Optional)
Any Additional Mulch added By Hand Once a Year Spring
Plants
Removal and Replacement of all See Planting 3115 to 4/30 and
Dead and Diseased Vegetation Specifications 10/1 to 11/30
Considered Beyond Treatment
Treat all Diseased Trees and Mechanical N/A Varies, but will Depend on
Shrubs or by Hand Insect or Disease Infestation
Watering of Plant Material Shall By Hand Immediately After N/A
Take Place at the End of Each Day Completion of
for 14 Consecutive Days and After Project
Planting has been Completed
Replacenent of Support Stakes By Hand Once a Year Only Remove Stakes in the
Spring
Replace any Deficient Stakes or By Hand Wlenever Needed Whenever Needed
Wires
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to
any changes to the system or responsible party.
Print Name: le---, e ,'- Z- .n cl&
Title: _
Address.
Phone:
Date:

Fy-

Note: The legally responsible party should not be a liomeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
1 Pearl.ie R. Rail, Jr. , a Notary Public for the State of North Xgrolina
County of Guilford do liereby certify that Ken Lindholm personally appeared
before me this 10 day of NevPmhPr 2.n(15__ and acknowledge the due execution of the
foregoing bio-retention area maintenance requirements. Witness my hand and official seal,
My commission expires Jarniary 14, 2010

WTARY PUBtlC
EI. LFORD COUNTY. Wes'
14, =0
DWQ Project No. cqtJ: I g g,
DIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : & oK!' Gross?ti.
Contact Person: wo-i-dtA tly""' Phone Number: ( -04) 120 - !3,40S
For projects with multiple basins, specify which basin this worksheet applies to: Bib- 2vlewh.? Ael; (e.?flr'e4r??.4 Subd?+r3;
Permanent Pool Elevation $36.0 ft. (elevation of the orifice invert out)
Temporary Pool Elevation 6141 Is ft. (elevation of the outlet structure invert in)
Bioretention Surface Area 4 6l4 sq. ft.
Drainage Area 2.7 ac. (on-site and off-site drainage to the basin)
Impervious Area 1.32 ac. (on-site and off-site drainage to the basin)
Rational C Coefficient
Size % -1 % (either 5% in wlsand under drain or 7% in w/o)
Inlet Velocity I.H fps
Inlet flow depth 3. h in
Depth to Ground Water =? 7 (, ft.
Planting Soil Infiltration Rate 1.0 inJhr. (the soil layer down to 4 feet)
In-Situ Soil Infiltration Rate 0.17 inJhr. (the soil layer below 4 feet or below the sand bed)
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
No vertical sand bed is proposed
The bioretention area is at least 40 feet by 15 feet.
Sheet flow is provided at inlet.
Water table depth is greater than 6 feet"
Minimum of 6' ponding is provided.
The ponded area will draw down in less than 4 days.
Planting soil infiltration rate is greater than 0.52 inrnr.
The in-situ soil infiltration rate is greater than 0.2 in/hr.
A planting plan with species and densities is provided.
Mulch layer is specified in plans.
,Planting soil meets minimum soil specifications (NCDENR Stormwater Best Management
Practices Manual, April 1999)
Plan details for the bioretention area provided.
Plan details for the inlet and outlet are provided.
An operation and maintenance agreement signed and notarized by the responsible party is provided.
Please note that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains
ZoRt wERg DANE ft r VA2rou3 t-OCATIOaS ACWSS 51Tt To -DEPT NS of 15? f'0 ?O
GP_04n1D WAt6R--tELDlb NOT Appr'-A(- 10 ?OWNC? 1pEgS.
BIO-RETENTION AREA #2 OPERATION AND MAINTENANCE AGREEMENT
PIEDMONT CROSSING
Upon completion of site construction and home construction, bio-retention area shall be constructed and
maintained. Prior to completion of construction activities, Erosion Control measures following NCDENR
BMP's shall be installed and maintained. During the tine which Blo-Rctcntlon Area #2 is not installed, the
developer shall maintain a bond for the construction of the device. When installed, maintenance of the Bio-
Retention Area is as follows:
Description Method Frequency Time of Year
Soil
Inspect and Repair Erosion Visual Monthly Monthly
Or anic Layer
Re-mulch Any Void Areas By Hand Whenever Needed Whenever Needed
Remove Previous Mulch Layer By Hand Once Every Two or Spring
Before Applying New Layer Three Years
(Optional)
Any Additional Mulch added By Hand Once a Year Spring
Plants
Removal and Replacement of all See Planting 311 to 4/30 and
Dead and Diseased Vegetation Specifications 10/1 to 11/30
Considered Beyond Treatment
Treat all Diseased Trees and Mechanical N/A Varics, but will Dcpcnd on
Shrubs or by Hand Insect or Disease Infestation
Watering of Plant Material Shall By Hand Immediately After N/A
Take Place at the End of Each Day Completion of
for 14 Consecutive Days and After Project
Planting has been Completed
Replacement of Support Stakes By Hand Once a Year Only Remove Stakes in the
Spring
Replace any Deficient Stakes or By Hand Whenever Needed Whenever Needed
Wires
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the s}-stem or prior to
any changes to the system or responsible party..
Print Name: 1-- Z, L 1, `' CI ??--?
Title: AA X-' e- :":i -a-,-
Address-
Phone:
Date: Q 7
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
1 Pearl.ie R. Nall, Jr. , a Notary Public for the State of North Carolina
County of Guilford do hereby certify that Ken Lindholm personally appeared
before me this 10 day of November , 200 and acknowledge the due execution of the
foregoing bio-retention area maintenance requirements. Witness my hand and official seal,
My commission expires -January ill, 2010 .
_ PLAR E R. gal-.., .?+
} ?-a ( NOTARY PUaIC
(y}MRD COUNTY, Fx
C=g*ft c;ka tin A 2=0
DWQ Project
DIVISION OF WATER QUALITY - BIORETENTION AREA WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : eAm."t Crosse --
Contact Person: wehdt,\\ 0 u-er1?v Phone Number: (701h -12,0-1305
For projects with multiple basins, specify which basin this worksheet applies to: gio • V e e4 on Re" -h2, CL.11.1-ffelot
Permanent Pool Elevation M.o ft. (elevation of the orifice invert out)
Temporary Pool Elevation 851.5 ft. (elevation of the outlet structure invert in)
Bioretention Surface Area 11 163 sq. ft.
Drainage Area . 9 ac. (on-site and off-site drainage to the basin)
Impervious Area 1.31 ac. (on-site and off-site drainage to the basin)
Rational C Coefficient 0"'5
Size % 7 % (either 5% in w/sand under drain or 7% in w/o)
Inlet Velocity 1.53 fps
Inlet flow depth ?• Q in
Depth to Ground Water 7 w ft.
Planting Soil Infiltration Rate 1.0 inlhr. (the soil layer down to 4 feet)
In-Situ Soil Infiltration Rate 0.27 inJhr. (the soil layer below 4 feet or below the sand bed)
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project
No vertical sand bed is proposed
The bioretention area is at least 40 feet by 15 feet.
Sheet now is provided at inlet.
Water table depth is greater than 6 feet.-t
Minimum of 6' ponding is provided.
The ponded area will draw down in less than 4 days.
/ Planting soil infiltration rate is greater than 0.52 in1hr.
The in situ soil infiltration rate is greater than 0.2 in/hr.
A Eplanting plan with species and densities is provided.
Mulch layer is specified in plans.
Planting soil meets minimum soil specifications (NCDENR Stormwater Best Management
Practices Manual, April 1999)
Plan details for the bioretention area provided.
Plan details for the inlet and outlet are provided.
An operation and maintenance agreement signed and notarized by the responsible party is provided.
Please note that underdrains beneath the planting soil are acceptable in the Piedmont and Mountains
aoa,Nks wEK.E'D°NZ OT ?pe,ous c.ocar,oNS ac,eoss T" C SiTE fb DEPTHS or- IS' do ?A
GQ?uav W,tteQ Ta8LT_ D,D r10T A PP EA a ra '60-1f7 L,o c?S .
) ? LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT
1.-V" 55'?CF?9i Q Z*l'? Cr L1l.LILF lll?7 L,iwLL QII?Gnu'? Ce,-,--,3q
The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff.
Maintenance activities shall be performed as follows:
1. After construction and until vegetation has been established, level spreader(s) shall be inspected after
every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more
frequently during the fall season and after heavy rainfall events:
a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required.
b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and
concentrated flows downhill from the level spreader(s).
c. A level elevation shall be maintained across the entire flow-spreading structure at all times.
Repair or replace the level spreader if it is damaged.
d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the
level spreader surface.
e. Repair eroded areas and replace/replant dead or damaged vegetation.
2. The contractor should avoid the placement of any material on and prevent construction traffic across
the structure. If the measure is damaged by construction traffic, it shall be repaired immediately.
3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year
to maintain proper functioning.
acknowledge and agree by my signature below that I am responsible for the performance of the maintenance
procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to
the system or responsible party.
Print name:
Title: A-) < --
Address:
Phone: ?-
Signature: t?
Date: l/' / o - 0,;7-
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
I, Pearlie R. Hall Jr. , a Notary Public for the State of North Carolina ,
County of Guilford , do hereby certify that Ken Lindholm
personally appeared before me this 10 day of Novemher 2005 , and acknowledge the due
execution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal, _
FLEARLIE
=TARY PULJI C FEARLIE R. HALL, .f:3.
tY.ttt flMRD COUNTY, ?X UWARY PUIXIC
.,,.. brk t4, =0 aFORD COUNTY, sec
'D: COO 1!= 14, V20
SEAL
e?

My commission expires Januar; 14, 201
Page 1 of 1
DWQ Project
DIVISION OF WATER QUALITY • LEVEL SPREADER WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name: piedmarii Crosson -
Contact Person: W „daft 0,iuba Phone Number. (7off) 9Zo -`1 `fflS
Level Spreader ID:. opf or= LA u.I C -F 1E#-D OltA
Level Spreader Length 170 ft. (perpendicular to flow)
Drainage Area a2q ac. (on-site and off-site drainage to the level spreader)
Impervious Area 0.12 ac. (on-site and off-site drainage to the level spreader)
Maximum Filter Strip/Buffer Slope 5. % (6% for forested, leaf littler cover, 8% for thick ground cover)*
grass
Max. Discharge from a 10 Year Storm I ,r( cfs
Max. Discharge to Level Spreader 0 cfs
Filter Strip/Buffer Vegetation ?;l1 ?rA -hK (thick ground cover or grass, canopied forest with leaf litter
I..,? t?lt,.e cbro-J Good groundcover)
Pre-treatment or Bypass Method ?M. LCOAMCN1c
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants Ini1jaig
Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf
litter.
4/ Pre-Form Scour Holes are on flat slopes only
z No structures are located in protected buffers*
If bypass method specified in the Draft Level Spreader Design Option Document: L01A)
Bypass method is specified (if applicable) and plan details and calculations are provided (ulA)
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
dischargetNh)
No structures are located in protected buffers. (.NIA)
- Plan details for the bypass and outlets are provide4O I a?
The operation and maintenance agreement includes annual erosion and vegetation repair. N) a
The operation and maintenance agreement signed and notarized by the responsible party is provided.
* Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a
minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area.
LEVEL SPREADER OPERATION AND MAINTENANCE AGREEMENT
L,2?e1 Sprtaaer op'- of vkcDmonT C9-415S1Nc, pe-IVL
The level spreader is defined as an elongated, level threshold, designed to diffuse stormwater runoff.
Maintenance activities shall be performed as follows:
1. After construction and until vegetation has been established, level spreader(s) shall be inspected after
every rainfall. Thereafter, level spreader(s) shall be inspected at least every month and more
frequently during the fall season and after heavy rainfall events:
a. Accumulated sediment, leaves, and trash shall be removed, and repairs made if required.
b. Inspect level spreader(s) for evidence of scour, undercutting, settlement of the structure, and
concentrated flows downhill from the level spreader(s).
c. A level elevation shall be maintained across the entire flow-spreading structure at all times.
Repair or replace the level spreader if it is damaged.
d. Mow vegetative cover to a height of six (6) inches and prune plants if they cover over half of the
level spreader surface.
e. Repair eroded areas and replace/replant dead or damaged vegetation.
2. The contractor should avoid the placement of any material on and prevent construction traffic across
the structure. If the measure is damaged by construction traffic, it shall be repaired immediately,
3. Inspect and repair the collection system (e.g., catch basins, pipes, swales, riprap) four (4) times a year
to maintain proper functioning.
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance
procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to
the system or responsible party.
Print name:
Title: tA, -, ?'-
z_
Address:
PhnnP•
Signatu
Date:
//- /o- C')
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have been sold and a resident of the subdivision has been named the president.
1, Pee ,lie R. Hall Jr a Notary Public for the State of North rgr-ol}na ,
County of Gui 1 fnrd , do hereby certify thatKen-L,indhalM
personally appeared before me this 10 day of Nov?m?Pr 005 , and acknowledge the due
e,Cecution of the forgoing wet [wetland] detention basin maintenance requirements. Witness my hand and
official seal,
FEAKLIE R. KALs, M.
,40TARY PUD SD
GUILMRD COi NV- , KC
C!r' an,M Sjjft, s;m 14, X10
SEAL

My commission expires January I , 2010
Page 1 of 1
DWQ Project No
DIVISION OF WATER QUALITY • LEVEL SPREADER WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name : PW mnn+ 0_f'os"
Contact Person: We„d_il 0y rb., Phone Number: (70q) 7ZO -alfgs'
Level Spreader ID:. OFF OF p i FDr,oar C, Rossrny Da.tvv
Level Spreader Length a 00 ft. (perpendicular to flow)
Drainage Area 0. r13 ac. (on-site and off-site drainage to the level spreader)
Impervious Area 0-36 ac. (on-site and off-site drainage to the level spreader)
Maximum Filter Strip/Buffer Slope 3. K % (6% for forested, leaf littler cover, 8% for thick ground cover)*
grass
Max. Discharge from a 10 Year Storm a $ cfs
Max. Discharge to Level Spreader a.g cfs
Filter Strip/Buffer Vegetation CAnrp;j C-oret# w1 (thick ground cover or grass, canopied forest with leaf litter
I rii-er,3rot_4 groundcover)
Go uee
Pre-treatment or Bypass Method _ ?Qe-cQ?zmet?t
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project.
Applicants niti
Level spreader is at least 13 ft. per cfs for thick ground cover or grass or 100 ft per cfs in canopied forest with leaf
litter.
Pre-Form Scour Holes are on flat slopes only
No structures are located in protected buffers*
If bypass method specified in the Draft Level Spreader Design Option Document: N(FF
Bypass method is specified (if applicable) and plan details and calculations are provided 01A
Discharge to level spreader and subsequent filter strip is hydraulically and spatially separate from the bypass
discharge. Min,
-- No structures are located in protected buffers. NlR
Plan details for the bypass and outlets are provided. 4A
The operation and maintenance agreement includes annual erosion and vegetation repair. NJA
The operation and maintenance agreement signed and notarized by the responsible party is provided.
* Level spreaders in series can be used on slopes of up to 15% in forested areas with leaf littler cover or on slopes of up to 25% in areas
with thick ground cover or grass if designed according to the Draft Level Spreader Design Option Document. This potentially requires a
minor variance in protected buffer areas. In any event the second level spreader cannot be located in Zone 1 of a protected buffer area.