20090096 Ver 1_More Info Received_20090821

Mitchell Environmental, P.A.
August 21, 2009
Mrs. Cyndi Karoly
DWQ - 401 Wetlands Certification Unit
2321 Crabtree Boulevard
Suite 250
Raleigh, North Carolina 27604
Re: Glencoe Mill - Requested Additional Information
DWQ Project # 09-0096 (Alamance County)
Dear Mrs. Karoly:
This letter is in response to the request for more information for Glencoe Mill dated July 23,
2009. Requested additional information is provided in the same order as requested.
1. Please provide thefollowing itemsfor the proposed bioretention cells per the Required
Items Checklist:
a Delineated drainage basinsfor each cell.
Clearly delineated drainage basins for each cell are illustrated on the revised
plans that are included with this letter.
b. An assurance that the installed system will meet design specifications upon
initial operation once the project is complete and the entire drainage area is
stabilized.
Sheet 2 of the revised drawings includes a bioretention cell construction
sequence that will ensure proper initial and ongoing operation of all bioretention
cells upon their installation. Per this construction sequence, bioretention cells
cannot be installed before their contributing drainage areas are stabilized.
c. A construction sequence that shows how the cell will be protectedfrom
sediment until the entire drainage area is stabilized
The construction sequence indicates that bioretention cells shall not be
constructed until the entire contributing drainage area is stabilized. This
sequence will protect the bioretention cells from sediment during the site
construction process.
d A copy of the signed and notarized Operation and Maintenance Agreement
A copy of the signed and notarized Operation and Maintenance Agreement is
included with this letter.
PO Box 341 Fuquay-Varina, North Carolina 27526
Office: 919-557-4682 Fax: [phone]
Z. Please install all level spreaders a minimum of 30 feet away from the stream. If it is
not possible to provide a 30 foot separation, please discharge the overflow from the
bioretention area directly to the stream.
All bioretention cells discharge directly to surface waters or pipes. None of the
bioretention cell discharge points will accommodate a 30-foot separation from receiving
surface waters.
Thank you for your time spent reviewing this additional information. Please do not hesitate to
call me if you have any questions or concerns about this project or if you need any additional
information.
Sincerely,
Scott Mitchell, PE, LSS
Permit Number:
46 be provided by DWQj
Drainage Area Number
Bioretention Operation and Maintenance Agreement
I will. keep a maintenance record on this BMP. This mamtes srm record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
- Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
- Snow, mulch or any other material will NEVER be pled on the surface of the
bioretention cell.
Heavy equipment will NEVER be driven over the bioretention cell.
Special care will be taken to prevent sediment from entering the bioretention cell.
Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a mouth and within 24
hours after every storm event greater them LO inches (or L5 inches if in a Coastal
County). Records of operation and mamtenance will be kept in a known set location
and will be available upon request
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
dMP elena wtc Potentw psoblems: How I will remediate the prebkmx
The enth+e We Trash/debris is presenL Remove the trash debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to
bioretention cell erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
estabbshsd. Provide lime and a
one-time hrblizer hication
The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the
sw m verge or swale a licable . '
11* pipe is cradced or Replace the pipe.
otherwise damaged (if
a licabte).
Erosion is occurring in the Regrade the swale if necessary to
swale (if applicable)- smooth it over axed provide erosion
control devices such as remfoumd
turf matting or nprap, to avoid
future Vroblems with erosion.
Stone verge im clogged or Remove sediment and dogged
covered in sediment (if stone and mplace with dean stone.
licable .
Form SW40IaDioretentiori O&M-tev.3 Fags 1 of 4
06/11/2009
4001
BMW element Potential groblems: How I wiM r+enwdiate the problem
The pretneabneut area Flow is bypassing Regrade if necessary to route all
pretreatment area and/or flow to the pretreatment area
gullies have formed Restabilize the area after grading-
Sediment has accumulated to Search for the source of the
a depth greater than three sediment and remedy the problem if
inches. possible. Remove the sediment and
restabihze the retreatment area.
Erosion has occurred. Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future ermon problems.
Weeds are present. Remove the weeds, preferably by
hand.
The bioretention cell: Best professional practices Prune according to best professional
vegetation show that pruning is needed practices.
to maintain optimal plant
health
Plants are dead, diseased or Determine the source of the
dying. problem: sails, hydrology, disease,
etc- Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary,
Tree stakes/wires are present Remove tree stake/wires (which
six months after lantnn . can loll the tree if not removed).
The biontwdon cell: Mulch is breaking down or Spot mulch if there are only random
suits and mulch has floated away. void areas. Replace whole mulch
layer if necessary. Remove the
remaining, much and replace with
triple shredded hard wood mulch at
it maxiomum depth of three inches.
Soils and/or mulch are Detmnine the extent of the clogging
clogged with sediment. - remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off-site location. Use
triple shredded hard wood mulch at
a rnaximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that Dolomitic lime shall be applied as
pH has dropped or heavy recommended per the soil test and
metals have amumulated in toxic soils shall be removed,
the soil M(Xlia. disposed of properly and replaced
with new planting media.
Form SW401-Bioretention O&M-Rev, 3
Page 2 of 4
JUN 11,2009 07:OOA 919 755 2251 page 5
00/11/2009 10:20 FAX [phone] Hedgehog Holdings
10 002
$W *It= PabrMW blems. How I wM remedisk the roblem;
The msdetdmin system Qofjing has occumed. Wash out the underdrain system.
if liable
The dt" inlet Clogging has ow red. Clean out the drop inlet. Dispose of
the sedimmt off-site.
The inlet is damaged !M!# or EgAn the talet.
The meiving water Erosion or otbe r signs of Contact the NC Division of Water
d =ge have occurred at the QaaW 401 Oversight UAR at 919-
outlet. 733-17$6.
Foam SW40143ioretentkoa O&M-Rev. 3
1Pw 3 of 4
JUN 11,2009 07:OOA 919 755 2251 page
I . 1
permit Number.
(to be provided by DWQ)
I acknowledge and agree by my signature below that 1 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.
Project name:Glencoe Mil, LLC --
BA& drainage area nrm ber:
Print nameTrank r
Title:
lg?
Address:PO Box 12929, Signature:
Date: `? u o y
Note: The legally responsible party shmM nut be a honmwwm association Unless more than Swe of
the lots have been sold and a resident of the subdivision has been named the president
I, , a Notary Public for the State of
Mtn - ro a0 County of do hereby certify that
-? 1( personally appeared before me this -AIN._._-.
day of and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
•••?•??lltit111gj??I,,
PUBUD
cov?.•••,,
?If111l11l11??
SEAL
My commission expires_u h-L(?L 1
Form SW401-Biontendw ULM Rev. 2
Page 4 0£4
JUN 12,2009 05:56A HEDGEHOG HOLDIN 919 755 2251 page 1
t0 N
0) r
a d ~ ,d a ° I
d ~ ° d M
d
~ ~
LI ~ . d•
• a .d~: a 6 WEIR . • 9 '`iV •
• ~ 4 WEIR SEE PLAN ~ ~ ° ~ • ~ a ° d • Ge •l~ •O
4 SEE PLAN ° • ~ . FOR ELEV. . • d 15~ -I-r
• . d . ~ d _ ° e F95 ~ (n ~ ~ N
' FOR ELEV. d ~ • ° • • °s?Q' ~ / ~
mss ~~U
• d d ~ ° • 4 a d d , • ° ' STREA
. QJ d d ~ ~ ~ PROT ED ZO TEA Ep ~ ~ o ~ / ~ i ~ t i t, i'~1 ~ ~ ~
• d d a ISTU Q~ y ISTU - ~ i0 ~ ~ eve i~
• .a d SEE PLAN FOR ~ ° <,A ~ _ oo ~ B.~ ~i~
~ ,~a. a 4 INVERT OUT .d . • • ' b ` , O ~ W M ~ r /
F9 QJ 9c~A k-a: ~~5k ~ l ~ l O
- g~ ~ ~ i ~
NOTE, , M j r ® - i
'4e ~ T R ATER T E B X S SEE PLANS FOR BOX ~
~ oh , to ~ ~ OH ~ RAGES , _
DIMENSIONS NOT TO SCALE ~o
~ / = u~n-t 832~~ m ew~°" i~ ~ . E~ TI IT Y pE ~ ai i
-0 1 ~,P a S~~ ~A~ES _ . 0 TO IS 1 ~ . , ~ . p ra~o / W
• ~ i ~ `L i '~A. i Z i
/ h A A ~ € , Z ` 7 /
X Q F ~ {~)p~ ~ ~
i ~
z p GRAVEL
~ " PARKING ~N i ~ f AREA G~" h; `~P ° ' ~ ~
_~P~fG ~ ® o0
' / e~ ~ ROOF RUNOFF CALC _ opa ~ ~ ti a~ ~ AREA=22 574 SF
~oA , , ~ ~ QP~P > S F ~ 501 \,Y/// ~ ~ / ~ ~ ~ ~ ~
s~ ~ ~ ` s~ I=100% JQ ' 3 2 SPAG~ ~
' ny ~e RV=0.95 EN ' SE ~L~I~~Ia~87 CF 1 I
{
r 0 y ~ ~tt~'d 3 ~ o a r~ ` . ~ STORMWATER STORAGE ~ ~ ` ' / RACE ~ Pv ~.a 3 M ~~~m~~t~ ~ , ; ; IL ADEN
~ 1 ~ / \ `:0 OP t ~ ~ o~~ - ; ; M MAN
~ ~ ~ 20 x30 VAULT WITH TOP / ~ 5
~ ,~0 ~ ~ 1 QPG ~ ~ MIN 3 HEIGHT d ~ x; ~o~~ ~ ~ l
0 , 5 ~e ,ti ~ ~ ~k STORAGE VOL=18000F ~ / ~ DUMPSTER
6.0~ ~ C, ~aP TOP EL.=542.0 , r j 'ENCLOSURE 6'HT. / ~
,see ~a~ f / ; BOTTOM EL.=538 ~ ~ ~ ~ E~EHDETAI(C /
• f ~ ~~d reread
to ~ be tamovad ~m to / / xmoved ~ ,f / /
PHASE- A 1 ~ .~A~o - 'y
LIN ~ , / S~a~~~~~" ~o~P A 9s e'
_ - 0 ~ _ AR o0 0~~0~' ~ _ 1,763sb ~ ~ ate.--SaRt.z~ ~ 2 ~ G ,i ~ 8nck 8wlding 4'WEIR / j / / / ' / i
, ,288 ~ ~ (ydroelec~nc Plan a.=5at.o _ - ; , i n ~ i
~V ~ / ~ ~ va~cAovO t , i =538.5 - l , . ~ ~ / ~ V d~ ~ ~ ;a~\~ ~
_ _ / _ ' / 4 ,
~ y ~ o ~ , . - Wvter t.. `'1 e~
~1 ~ Vault t~lv~ ~~"^`~.,~5.,-~.... O _ ~ ~ ~ 1Mr V r ' ~ >
F ` 2 ~0 usa u sspo . Q ° /

~ pw ~ do e , ~<e va~c9 ~,o° y , ~ e ~ 00~ ~ . - ~~o - - ~ Q 1,5 ~ ~ , r
ry.._ e i oA STORMWATER CALCULATIONS ~ ~ '~"y
~ k `il• RAPS 0 .,ry ~ Nog SF£ . ~ 4 0 .
i , ~ . f h ~ ~ Q, PRE 11.66 CFS p ~ k~
eP~ P ry1 Q ~ / ~ /
Q, POST = 13.55 CFS U u"
M ~~s ~ ~ o ,
~ , ~ ~E o° ~ ~ ,.a ® / Q, POST WSTORAGE = 10.92 CFS ~ ~ / ~
~ ~ ~ry ~ ~ ~F / PROPOSED STORAGE IS A TANK SYSTEM WITH A
. . r ~ / DUMP o= o STE h 6~~ o~ ~ / I T ' ~ S
~ m~ ~ ~ O G o5 QA. INS / TALL k. o ED q ~S TO BE MAXIMUM STORAGE VOLUME OF 2,629 CF ~
' y5 6 ~ SPA ~ ~~e e• ~ ° / 0 F AS PART ~
P e• / PHAS ~ b y~. E 1 ~ v ` do Q0~ ~ / ;E ~ ~
' /
' ~ /
~m j . 03 ~~a ~ 1 / / PROPOSED PLAN S TO COLLECT THE 1 " ROOF ~
i o~ a . ~ /
~ - o° to / ,OLLECTED V A RUNNOFF FROM THE TWO MAIN M LL BU LDINGS, N
0 0 ~ / ~ p\\5 URGED NTO BUILDING A AND BU LDING B.
~ i
/ TS ° REVISIONS
G / BLDG A RUNOFF VOL = 1,842 CF
® E°~ ~ ~ ~ ~~h /
~ G~ BLDG A STORAGE VOL = 1,860 CF
e - ~ y\o FF C / aF R 0 /
~ i i ~ i~~EA X3,262 SF / BLDG B RUNOFF VOL = 1,787 CF
o I ~ y BLDG B STORAGE VOL = 1,800 CF
v G° / N ~ ® 0.95 ~ , e, -
c ~ ~ ~ ~ ~ ~
~oa~• , v, i STORMWATER
~tij • ~ STORMWATER STORAGE ~ > - , f o{e~ ~ EL 658•
m ~ ~ ,~~n 40x16 VAULT WITH 3 ~ s'woR 'd ~ 6~' EL=556.JjI ~ STORAGE
~ ~ i~ ' ~~~-N~~~s TOP, MIN 3 HEIGHT PLAN
~ ~ - RE STORAGE VOL=1,920 CF
Q G 4 PRA ' , 5 N ~ ~ ~ TOP EL.-557.0 /
d ~ ~ ~ ~ BOTTOM EL.=554.0 W ~ r / ,
o ~ DWC~ NAME:
m ~ i u~ ~o~.r
~ ~ ~ ~ i
i NOTE: Di~AWN:
v ~y~ ~i ALL CONSTRUCTION TO BE IN ACCORDANCE PDi1
z ~ ~ w J / WITH CITY OF BURLINGTON, NCDOT AND NCDWQ GhEGKED:
~ /
~ ~ 3 v ~ STANDARDS AND SPECIFICATIONS. GMs f~EVIEWEI~:
~ i w
z i N.C. UNDERGROUND UTILITIES GMS pArE:
J / 3 DAYS BEFORE DIGGING CALL MAY I2, 2005
kD TOLL FREE 1800-632-4949 SCALE: 1 "-44'
O O N
N U A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY
0 1 of
L
C
J
U

N
0)
I
Bioretention Basin Construction Sequence. M M
1. The site will be developed in phases ~ ~
as shown on the plan sheet. 2. All building renovation and site grading O ~
and parking will be done prior to
starting the construction of the teh ~"I ~ ~
bioretention basins. • ~ • o Section Two ~ ~ I(~Q LL
3. The site coordinator will verify the site River dips O ~ r n 1
work is complete and will tell the Contractor that work can begin on the P.B. 53, Pg. 76 / ~ ~ V 1 N
bioretention basin.
4. The bioretention contractor shall ,,r OF.~~ Alamance County ° o"r ~ r l
submit spec sheets for the underdrain D,B, 2570, Pg, 155 ~ U ~ ~ BASI~GE ~ ~
pipes, basin media, filter fabric and
stone to be used on the job. All ~
materials must be approved prior to beginnig the work. The sod supplier • ~ ~ ~ ~o Section Two • \ Ae~~ ~ River Bills
shall approved by the owner as well. ~ a F ~ ~ o r~~P o ~ s~ .a~ P.B. 53, Pg. 76 /f L B~
5. The bioretention contractor shall follow '~"mss,'/ s¢a~x,
the plans and be familiar with the ° AR RG R ED ~b ~ ~ ~ a o' o / IST RB DT / rc~NING ~ / ~ ~
NCDWQ BMP manual as it relates to • ~ .k ~ r Flood h G~ ~~b ~ M
bioretention basins. , 6. After receiving material approval the ` 521 • 521 , ~ ; ~ so+•Ga ~ ~ ~ / ( ~ M
bioretention installation may begin. • ti~ • = ® v 00 ®~•~,~4 - ~ ~ ~ to
II k record 7. The contractor sha eep ` 4. ~ 0)
drawings that will note the excavated 5~es
bottom elevation and elevations for ~ a oab ~s~~ ab ~ ~~ces ro n ~ r•'` ~
the underdrain piping and the elevation pg , l6 . ~e of the stone and media layers. ~ hc~4, ~ ~ OC TE •:~'d ~ ~ ~ N E ~ ~ ~ rluTr p ~N MORE 6N #4 Z
\ ~ 8. The contractor shall call for an ~ ~ S~. ro Is / ~ p
inspection of the under drain system ~ _ ® D / BIORETEN110N #4 HAS A =
i h st ne. The ~ pnor to plac m e o i ~ , ~ ~ t \ / ~ F~ow PONDING DEPTH OF 12 .
inspector shall be present for the ~ h ~ ~ / ~d ` ~ ~ ~ ~ ~ ~ ~ ~ TOP=534 \ f
lacement of the stone, fabric, and ~ ~ ` ~ r' ~ ~ U V=52 3' box ~ T w
media. ~ % >7coa . ,vAr, ~IGrrr of 9. Once the sod is installed the owner ~ i \ St,. ~ o e~. cw,vEL I ~QP iwlth D
will make sure the sod is watered to ~ ~ eet • D P M ~ ~ nR~alNC ~ / ~ j ~
~ C GtNEERt ~ o°~' I N make sure it lives. i ~ G / ® ~
oa ~ ti 10. A final inspection will be made by the ~ ~ °ti~° r~
owner and all record drawin s will ~ R" Q~ 9 ! ~ r~ \ ~ ~ , ~e t2 SAACsdS ~
turned over to the owner. , r ~ f, ~ 11. The owner shall monitor the basin ~ ~ ~ Beek, / / mP•s4ao ~ / Brick Building ~
~ after the first rain event to confirm i ~ 0 ACE
i ewaterin as re uired. ! ~ ~ ~ % ~ 6 that it s d g q \ ~ / ~ a~~• ~ ' ~ ~ MILL R ~
12. The owner shall have ht edevice ~ ~ e P 5.x ~e ~ (MAN MADE) .,+r„~~ tN . Q0~'~A~9r ~ jar ~e+~~
ins ected annual) b a rofessional I ~ ~ Den~siNncE O 9 P Y y p ~ ~ ~ QP°
engineer. ~ ~ 5 ~ ~ ' 566 w° acc ~ti ~ ~k ~ ~PFNI +fr M
E7AIL 6 ~ -
~ J ~
1 ~ P ~ A IO~ETET~ITI(9N #3 ~ ~
564 RASE 1 P~~ ti ~ LINE / 0s~~~~ ~ 5~0~' Ay ~F ' I ~ ~ / ~
• ® 2 ACES ~ ~ ,,e fi ~ are~1~'n ~ ~ ` - -376 AREA cp£rf`' `,ab' ~ _ Bn,,7633{, ~ 1 ~r'~ / / ~ .
BIORETETN ~ °k ewld~~y ~ S Tp ` 0 2.288 , 0 col (Hydroelectric Plant)
g ~C~ / / / U s
t ~0r ~
/ w ~ watu 1 ~ - r~ ~ 0 ~ ,
o ~ ~ ~ area
0 ,myy s,os7 A r
\ ` ~ /
BI RETETN ON ss. ~ e~ ® _ ~ ~4~R"~ ,s 0 _ _ ~ . _ ac ~ ~ ~ a _ cA t • _ -
. ~ s- / J C ~ i. IXvE1ZA'6N TO BE USED UPSI.OPE OF A CONSfMIC110N SBE TO PREt'ENf STORM RUNOFF FROM ENIFAING tiff DISRIRBED AREA ~ ~ ~
Pr P , ~ s, 2 IMMf]MNELY UNE ANO STABItIff BEFORE ANY OOXNSWPE p+ADING BEGINS (STA<xIpADON MUSE OCCUR BEfORE ECStUNCE OF A ~ L CfROFlCAIE Of COMPIYNCE) SEMDLAAOON METHOD f5 6ASm ON VEIDCRY OF OFFSTIE ORAINMff. 3. ONERSIONS 910UID ONLY BE USPD FOR ORldNAG6 5 ACRES OR IEES.
\ RkSIN 0 w eer " 9s / ~ ~ _ ~ 4. AfA' SFOIMEM IMEN WA1FR PPoOR 70 SfABIl17A110N OF IHE DWER90N MUST BE OMEItiED fNfO AN APPROrID EROSION AND SEDIMENT ~ _ _ / WNtR0. BMP. CIFAN WAtFR SHOUID F>APTY INTO AN APPRWED OUIILT DE17CE
\ ;oewa ~8 . DUMPSTER ® 20~~jP559. CC ~ / rL~ ~ / ACAS , e ~ , \ °p3 0 &y a ENCLOSURE 6' ~ ~ ~ r / ~ ~ m
\ a I-!T, r d 0 8 tl,~ ~ SEE DEiNI ~ I RT roti ~ ~
\ ~i 6 ~ / DUMPSTER iS 2' MIN. ~ W
A' ` I INSTALLED T~rg~ VAR.
1byas \ ~ , P°°Qe 3 r° / OF PHASE AS Pq 2' - ~o' DIxE L
Fbw fipn uMbWrtxl umo VAR, r~' ' ~'F~C~';:. *.a OMWr6ed Ama ( J~ ~ ~ / f
~ ~ a /
\ BSg ° 3 r°- i \oA hI I hI I I-III i I 1-~ ~ - 21 _I ~ I-I I i-I I I-I I I-i 1I-
\ Q~res °0 gbd P°~. to ~ 9 / / _ ~li. 11 I LLI U
/ \ ¢Sr ~ ~ 0\\y o ~ N 'II III-III II L
~ d G ti ~ ~ 1
/ OR0.4 SECTIONAL NEW
5 ® ~ ~ / / t~G /
Ffl P`~ ~ ~ R DRwA~® R! OF ~ / ~G /
SAY, D 5` /
D fMPRt34~ S / ® a°a / ~Y E ENGIh P[RN / ® ` / EEF2td~G / ~ ® /
® ~ STANDARD CLEAN WATER DIVERSION N
/ IN ® / ~ 0 / /e. o ~ G ;
Ali / / NOTES:
~ / / 1. SIDE SLOPES SHALL BE NO GREATER REVISIONS
/ / ~ ~ l' THAN 3:1. NOTES:
~ ~ Rp~FA '`f c+'~ / / CAPPED 2'x2' 2. BMP SHALL BE LOCATED IN A 1 > ALL CONSTRUCTION TO BE IN OB 11 09 PER NCDWQ 2'X2' RECORDED DRAINAGE EASEMENT WITH A COMMENTS
• ~ G r / / GRAVEL CLEANOUT OVERFLOW / ovERFLOw RECORDED ACCESS EASEMENT TO A ACCORDANCE WITH CITY OF BURLINGTON,
~o. ~ f /F`°°' / PIPE STRUCTURE ~ / Q ~ / I with STRUCTURE With PuBUC RIGHT of WAY. NCDOT AND NCDWQ STANDARDS AND
Q o / 3'-5'WIDE STRIP y oe~cnxm ww. , 2x2 e n`~ a~ / OF CENTIPEDE 2X2 3. MULCH SHALL BE FREE OF WEED
`t ° xv.aao / ! v/' SOD grate & / grate & ~~y..r,~ SEEDS, SOIL ROOTS & OTHER MATERIAL SPECIFICATIONS. frame AND SHALL BE DOUBLE OR TRIPLE 2. BIORETENTION FACILITIES TO BE BUILT
o °°a / ~~Q4,, ~ / / 1y~~1 CENTIPEDE SO frame ~~'j`
~ / ~ B NTION #2 ~ r~3 o ` \ - N 1 ,a r ~ / ~ nnlnv inn iTU .lll,~tx/11.~.~» 9° 12PONDI G Q" J~O Qi Snivv i wn~ Wi i i , ,i r •.p '~t ~ ~ ~~rfl.~~`r% SHREDDED HARDWOOD. RENEW MULCH AVER THE ADDITIONAL PARKING I~ iiJ
o / ~ A PERMEABILITY FACTOR ~ l ;;~..~'~~;~:'~.'`;.<~::,:~•~.:r;;:;: l/ i r:'~f%~~~ AS NEED TO MAINTAIN A 2-4" DEPTH. ~~~~1~ 4. FILL SOIL MEDIA IN BIORETENTION PLACE.
o ~ „oy `4 / ~ OF AT LEAST 1 "HOUR, /1~e / ~ ~ ~ ,r / (PER NCDWQ BMP MANUAL Ti`~~ FACILITY SHALL MEET NC DWO 3. THE BOTTOM OF THE SOIL MEDIA IN THE WATER
.SPECIFICATIONS '..~4:..>,•.; i ) SPECIFICATIONS. QUALITY
3 ~ D ~ 1o s MIX: 85-88% Sand, 8-12% 5. ALL UNDERDRAINS TO BE 6" scH 4o BIORETENTION FACILITIES MUST BE A
~ Fines, 3-5% Organic, P Index ~ ~ between 10 & 30 OVERT I - OR SDR 35 SMOOTH WALL PVC. ALL ~ PLAN
~ / ~1 'P FILTER FABRIC OUTLE OUELEfo 0 LATERALS TO BE 4" scH 40 oR sDR MINIMUM OF 2 FROM THE SEASONAL HIGH
~ / I „ rQv ~ s ~od'~ ~ ' CONTACT CAROLINA BETWEEN SAND LEVEL BEVEL sPREA~ER 35 SMOOTH WALL PVC. UNDERDRAINS WATER TABLE.
~ ~ 1a ~ I~ MEDIA & STONE g M'~0 MULCH EXPRESS" OR ~ ~ + ~ 4"to 6"~ SCH 40 PVC w ~ om p°° ~ "TRIANGLE LANDSCAPE UNDER DRAIN PIPE AT H 40 PVC SHALL HAVE A MINIMUM OF 3" of 4. BMP MAINTENANCE AND ACCESS
p ~ ~ y~yX 0~ j SUPPLIES" FOR A SLOPE OF 1.0% N Po% aT EACH ESIDE50FSTOEEPAP OVWITH DFIC TER EASEMENTS, AS SHOW ON PLAN, MUST BE DWC~ NAME:
m d°~ BIORETENTION FACILITY 3" X57 WASHED WITH FOUR 3 8" ~ c~ P~' ~ STONE ABOVE & ~ 6LfW,0E GM5 pI0R1=T
~ ~ MEDIA. ON SIDES OF HOLES EVERY 6" Yes" FABRIC ABOVE THE STONE. RECORDED. 6. MAINTAIN BIORETENTION FACILITIES AS DRAWN:
U Q UNDERDRAIN W ~ ~ y~ PIPES NECESSARY TO ENSURE OPTIMUM 5. BIORETENTION DEVICES TO BE
O 1 ~ ~ I Z f / QN ~ 547A INFILTRATION. CONSTRUCTED AFTER SITE AND PARKING
10~ NTION #1 I'I 7. BOTTOM OF BIORETENTION FACILITY GI~EGKED:
v I X10 I m MUST BE AT LEAST 2' ABOVE THE AREAS ARE STABILIZED. GM5 SEASONABLY HIGH WATER TABLE.
3 / ~ REVIEWED:
I N W GM5
~ NOT TO SCALE N.C. UNDERGROUND UTILITIES DATE:
iz

0 3 DAYS BEFORE DIGGING CALL MAY I2, 2009 TOLL FREE 1800-632-4949 SCALE: 1 "=50'
o N
In ~5°~ I; A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY 2 of
N O L
a v
c
J
U

t0
N
P ~ ` ~ a / \ o° ~ ~ / ~ j
i, ~ ~
~ ~ - ~ 9 ~ 5F ~ / ® o~ o ~ \ ti ~ ® ~
~ 0 ~ ~ ~ 0 D 4 ,4 WEIR v~~. ~ / ~ ® rn
p, ~ 'e ~ / ~G E EL.-55
1 i ~ o~ G ` w . ® ~ 1evQ~`0~. / ~ In
~ y _ , ' 6 WEIR / ~ . ® ' EL.~556. 6 WEIR 4 ~~~LC F~ E 50 ~ • EL.. 556. A / ~ ~
~ / ~ + . Q • ~ - i ~ ~ :i / S - ( ~ .25 ~ 1 CERS a~ o . . ; - ~ c4 ~
/ ° / ~i'Y y J • y i °
~ ~ ~ EM ~ /
~ ~ R ~ ~ P ~ ~6. ~ ~ ~ 5. EP / 5 ~6 j' / ~ a
~~rLOt~ G PR /
k ~ Q tx ~ ® ~o~`` • ~ v- • ~ ~ ~I~ ~ Q 5 / ~e ~\v Z
S i ~ ~C ~ tx ti G E ~ ~ ~ ~ 0 ~ FP ~ oa ~ ® ® ~ \ tl a e e a~ ~~s l J
F ~ ? \ \ Q 1 'T
r ~C" k / ~ C ~ ~ X • / ~ i ~ . Q P F. . < ' , ~ P ~ ~ I ~ ~ ~0 / ~ G ~ F. h~ HDPE
~ P P o ~ J 5 ~ P ~ ' _ _ Q ~ HARGE DIRECTLY
' ; ~ P / ; n 0 ~ DISC \ 0 ~ ~ / 12 . HDPE C~ P p ; ' ° ~ ~ ~ TO MILL RACE
/ ~ ISCHARGE ~ Q pv _ Q INV - 548.0 o a ~ ~ ~
/ DIRECTLY TO ~ G ~ ~ ~ MILL RACE ~ /
/ / INV = 547.5 , ' ~(P . - / ~ ~ M XS/ ~ BIO RETENTION #3 ~ ~ l 1 ~
/ `Ci' BIO RETENTION #2 / ® BIO RETENTION #1 + ° (v' / ~ / ~ ~0 Site Name N #2 ~ ~ i, C~) '~tf,~ ~ ~ fir/ ~ Glencoe Site Name Glencoe
~ ~ Site Name Glencoe ~ / Lot size acres Lot size acres 0.20 ~ + ( 1 017 ' / ~ ~ ~~~1~~~ ~ Lot size (acres) 0.29 ~ ~
~ ( ) Q Total Impervious Area Total Im erwous Area 0.20 p p Drainage Area Area 0.17 ~ ,r'°~`t/j ~ N Total Impevous Area 0.25 ~ 0.24 ` ~ ~ Drainage Area 0.29
i ~ Drainage Area 0.23 ~ / ~j Percent Impervious _ iI ~ ® F Percent Impervious 0 87 C Rv Percent Impervious 0.86 ~ pus 0.71 ; ~ , ; ~ Rv 0.83
/ Ru 0.83 ~ V~ ~ 0.69 , " ~
n r' Runoff Volume Runoff Volume U(~ ~ - *RV`Arainacres O~ / ` Runoff Volume Z
Volume=3630*Rtl*R~Area in acres ~/j~ v ' / Volume-3630*Rd e Volume=3630*Rd*RdArea in acres Q d*RV`Area in acres \ _
l~ ®i' / Constant 3630 ~ ® Constant 3630 ~ ~ Constant 3630
4v Rd 1 . ~ Rd 1 , ' V Rd 1
" / Rv Rv 0.83 Area in acres 0.23 ~ ' ~ / / Area in acres o.s9 overhead O _ , Rv __0.63 0.24 electirc t0 Area in acres 0.29
/ / _ ® / / be removed ~ ~ -
/ Volume (cf) 695 ,\O~• / / Volume (cf) / / Surface area @ 9" depth 927 ~p~ / Surface area @ 9" depth 599 Volume (ct} 869 9" depth 799 ~ ~ ® ~ ~ ~ ~ Surface area @ 9" depth 1159
~ rj ,
/ Area ProNded (sf) 1024 Opa ~5 / / Area Provided (sf) / CDC ;f) 879 r ~ ~ ~ / ~ Area Provided (sf) 1380
BIO RETENTION #6
Site Name Glencoe
on T , ecti wo Lot size (acres) 0.19
_ z Total Impervious Area O.t9 / ~ramage Area 0.22
Ver ill ` '`a. 5 ~ ~ ~ ~ Percent Impernous 0.86
~ P ~ ~ ~ _ . B ~ °5 / Rv 0.83 48~~A~09
+ . ~ 6 ~ ® , Runoff Volume
/ Volume=3630*Rd*RV`Area in acres
I~ ~ Constant 3630
t. ~s ' ~ / ® ® Rd 1 _ _ Rv 0.83
~ ~ ~ ~ ~ . , . 0 Area in acres 0.22
/ / '4t, ~ Volume (cry 661
~L ~ ~ , ~ ~ ~ ~ Surface area ~ 9" depth 861
® V ` ~ v~ ~ ~ ~ ~ ~
~ 24 . ; / ACES ~ 0 Area Provided (sf) 1259 z
° a + / ~ ~ ~ /
NqG ® ® Z ,F, _ _ / ~ ~
~ ~ e~ RJR ~ . ® _ _ J ~ ~F Tj 8 S 3 . _
° / 5 / ~ , ~
/ ~ ~
+ < / G~ ~ . ~ P . , , ~F ~ ~ V ~j ~ _ _
a J / e 5 ~ p~ + + r ~ _ ~
~ ~ ^ ~ " BIO RETENTION #4 tiJ + ' ' ~ s O ~ n
e ( ~ Site Name Glencoe S~
~ lot size (acres) 0.7 ® ~ ~ _qC e• , , y / ~ F : ~ / Total Impervious Area 0.63 ~ ~ . ~
® N/1 c. , , Draina e Area 0.70 \ 1. J~ ~ / + g ~ ~ 6 n / W
I " ° ~ ~ Percent Impervious 0.90 2? 7 F S • ~ ~ ~ Rv 0.86 S
~ i V ' r'/ A p s
• d Runoff Volume \ N / ® i T ,i Volume=3630*Rd"RdArea in acres ~ ~ flV~fdr ~ ~
~ I uss ~ / ~ ~s \ r'~~fl~. ~ , `V
t ~ Constant 3630 ~ 'r/~• ~RFLt3!~ Rd 1 ~ . \ liti`~=w 5 ~ ~ ~ \
~ ~ ~ e P 53 a a ~ ~ / : % Rv 0.86 ~ ~ , S \ ~ ~ J ~ ~ w ~ ~
V-529 Area in acres 0.7 ~ "r9 'i. C \ ~ p,
A ~a \ F Volume (cf) 2185 ~ • + ~ ~ ~ c ; ~ CHA~G~ EOTL
Surface area 12" tle th 2185 ~ p S S ' \F UR
i Area Proudetl (sf) 2262 ' ~ Fq C~ - ~
\ ~ IRECTLY TO"--
BIO RETENTION #5 ( Fc~ Site Name Glencoe ~ ' ° s6 s 1,, _ ~ TREAM ~
Lot size (acres) 0.14 ° ° `S ssj• JS I N\~- ~ ~ ~ N
Total ImperNOUS Area 0.13 . s i~~,~~° ~ QPG~
Draina a Area 0.14 ® • • 9 Percent Impervious 0.93 \
Rv 0.89 ® ~ ~ ~ <<, REVISIONS
® ~ M
n c ~ Runoff Volume ~ 2 v C SPAS , ~ ° ~~P`~ 08 11 09 PER NCDW SS Q ~s' ~ N COMMENTS
Uolume=3630*Rd'Rv'Area in acres ' ES S ~ ~ S ~ S r ~ ~
q 0 T Constant 3630 T ~ ~i/ ~ _ 0~® ~ ~ ~
~ ® 0 Nq n. Rd 1 ~ , C~ ~
Rv 0.89 3 ® S Q Area in acres 0.14 ® ~ L Q ~ ~
M ® N G
M ~ , v
c Voluma {ct) 450 o Surface area @ 9 depth 600 N ® \ ~ \ ~~~Q~_
tb Area Pro+ridetl (sf) 828 , ~ ~ ~ ~ , , _ WATER
m 3 QUALITY
•o of PLAN
0
a N
rl
W DWC~ NAME:
0 w m r~.~ca~ cMS ;~ar~r
U W NOTE: DRAWN:
O U PDI1
Z W J ALL CONSTRUCTION TO BE IN ACCORDANCE GI~EGKED:
WITH CITY OF BURLINGTON, NCDOT AND NCDWQ GMs
Q1 3 STANDARDS AND SPECII=(CATIONS. REVIEWED:
„ w GMs
O U
Z N.C. UNDERGROUND UTILITIES DATE:
W J MAY I2, W05
N 3 DAYS BEFORE DIGGING CALL
Cl O N TOLL FREE 1800-632-4949 SCALE: 1 20'
N O A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY 30F3
CL
m
J
U

t0 N
01
i r
BAS I N ~ M
~ T ~ BIO RETENTION #6 ~
~ ~ ~ • ~ Site Name Glencoe / ~ ~
i~ ~ ~ ~ ~L1 Lot size (acres) 0.19 ~ ® ~ = Total Impervious Area 0.19
. ~ ~ / Drainage Area 022 ~ u
• Percent Impervious 0.86 ~ \ ® Rv 0.83 / ~ ~ ~ O j~
\
. ~ ~ l ~ ~ ~ RunoflVOlume ~ ~ ~ ~ ~ \ ® Volume=3630"Rd'Rv`Area in acres /
\ v~ / ~ N
~ ® \ Constant 3630 / \ ® Rd 1 ~ ~
~ ® Rv 0.83 ~ ~ ~ -1~
~ ~ ® Area in acres 0.22
~ _ ~ Volume (cf) 661 ~ Z
® ® , ~ \ 0 Surface area @ 9" depth 881 ~ ~ ® r p
0 ~ s~ ~ W I T~ ® ~ \ ~ \ Area Provided (sf) 1259 , - ~
~ ~ ' V ~ ® _ ~ 24 ACES _ M
~ ~ o ~ C/~ z ~ ~ ~ ~ o 0
. ~ _
^I ~ - - - / %9 M
9~,~ ~ _ _
~ FT~0S3S _ _
~
T _ _ _ ~ _ _ _ _
-
l~T SCR F ~
E ~..qCF ~ Z
B A ~~~C~~~~S` ~ a
S
~ WA7~ . ~a ' ~ NTH 0~~~~ ~Uj~ ~
~ \
~a w ~ ~ r_' \ 1~~=- ~
~ - -
MIT APPLICATION FORM STORMWATER MANAGEMENT PER ~ ~ A~~ ~ CH ECiL
401 CERTIFICATION APPLICATION FORM ~ ~ ~ TO S ~
, RFC,. ~r!T.~~ INV"~= ~ .5 '
TION CELL SUPPLEMENT BIORETEN _ _ _ _ . Ill. RE III. REQUIRED ITEMS CHECKLIST ~
' Tinted and submitted, :Basin Elauations This form must be filled out, p . , o8/I~/o9
• ~ miffed atop ~emporarypooleleva6oc 563,OOfmsl with all of the re aired information.
~iredltemsChecklist ParfIIl mustbeprmted,filledoutandsub g q _~,,,w,.~,.~~r~w._~~.~~~~._~....~. ;~.~w;,.~---~.--~-~--~----mm~------~---~--- The Req ( ) ~YPe ofbiorefeatioo cell (answer "Y b only one of the hua Please Please indicate file page or plan sheetnumbers where the supporting documentation can be found. An incomplete submittal
~followscg questioos~, packa~ package will result in a request for additional information, This will delay final review and approval of the project. Initial in
I, PROJECT INFORMATION _ V YorN OK ~ _ . ~.._A , th
lencoe Mdl Burim ton, NC < Bthcsagrassedooll, ( I ~Prolectname _ ~ 9 ~
Carl Simmons, PE Bthisacellwthtleeslshrubs~ N , or n _ Contactname -..,._~_..•._-_-.~~~~._~___,__~.~_m~.~ ,
=0830 ~PlaoVogeleua6oc(lopofthemulchorgrasssodlayer) 562,25imsl 919-833. _ _ _ Phone number _ 'Pagel Plan ` ~ 1
.~~w._~r.~._~..~.__~....~..~w..~w..~.._._w_.~~~~.__...____~...~~.~___ Dethofmulch 3mchos OK p Init ;Date May 16, 2009 _ Inltlals Sheet No ~ _ ~ _ ~ 1 Plans (1" - 60` or larger) ofthe entire site shovNng:
_._.._.~.~~__._.._._~_..m__..._...~.~__~_._..,~.~, -~I ~-_.._.,~mm~~--.--~---~ BIORETENTION #6 Botomoitheplaohngmedmsod 5595 s Design atultimatebuild-out, z
~Dralna a area num ber _ ._.__M._.... _ ; ~ PiacDag media depth 275 ft i'-Off-site drainage (if applicable), i
a - Depth ofwashetl sacd beMw plao6og media sail D B - ~ Delineated drainage basins (include Rational C coefficient per basin), ~
IL DESIGN INFORMATION - - ..~...~_~_...m~.____.~. - - Celldimensians, ~ '
~5ite Characteristics . _~.__.mm__~.. _ _ m~.... 9,583 ~ ~ . . ire uoderdraios being iosthlled? or -Pretreatment system, Z O
Drainage area .._mm_..m_._~.~m - High flowbyp ~ Q
~ 8,276_{ ~ _ _ Imperulousarea ~._-____.._~w_~_~..~ J J
86.4°/° % i r Howmaaycleaooolpipesarebeicginsthl~d? 11 OK Percent impervious _ ~ _ i m.. ~ ~ . ~ - J~
1.0 mch r ~ Whatfacthrofsafetyisused~rs~mgtheaodertlrams, (See
Design rainfall depth . ~__A~ 2 ~ ~•_~.~~...~_~..~~~a~~.~.~_~ m _ ~ _ ~ _ _ . BMPMaoualSee6oc128,6~ ,...._rv.., ____w. ~.._~..,.._~_.~~.w._._ m f-
Peak F _ _.W ~tltlitiooaldisthalr~b2d~enthebo~moltheplaotiogmodMaod! low Calculations ~ , . ~.M.~._;.._ ~ N YorN _.~rv_____~_.~ 1ft „ _ _ n
ntrol ofthe 1- r 24-hr eak flow required. ( 1 ~prelpostco y, P hebolhmofthecolltoaaourllhrucdordrams 2 .Plan details (1" = 30' or urger) for the bioretention cell shovnng: J
_ _~.w..~_.___-_.~ w_,r.-_ e in ; z Celldimensions Q
i.1-yr, 24-hr runoff depth 9o~m oftheeeliregmred 5585imsl _.~__~._~__M__~__-_~_._~~___....-_~~~..-..~ inlhr )-Pretreatmentsystem,
;1- r, 24-hr intensify _ ~ _~n~~.-_._.----~-M--~...~.-._~~.~.~~_~~..._~~__~._.~__,... SHWioleuahoo ~sl _ Y __.,.._...w.,,_..m.__.~M._.._.M E _ _ , DistaacefirombotomthSHWi ~ 5565fl -High flow bypass system, ~ rr~~~'
Pre-tlevelopm ent 1-yr, 24-hr peak flow Isec ~w_~___.~ ~ _ ~ . ~ •w,M_. -Maintenance access, V z vJ
k flow ftalsec ~ m - ..o... . _ ,Post-development 1 yr, 24-hr pea . _ _ .._m. _ . . . s Planliog Plan ..~.._m. - Recorded drainage easementand public rightofway (ROW), W
p - mm PrelPostl- r 24-hr eak control itisec i ' w.w _ - . ~ _..w , m. _ ~w_.~ Numberoftaaspecies _m_ - - Design atultlmate build-out, 1
w..,~ . m___ m Vin,. ~w ~._.A . A Waters ~ • ~ W ~ ~
iStorage Volume: Non S - Numberofshmbspec~s ..__m.__~.~~_.~__.~ 661.0 ft _w_~ _
;Minimum volume required _ __.._..~..__w....--___--_-_-,~-----_-~---.~.~~-----a--~- Numborofhorbacsousgroucdcouorspocios ~_...~~m,.W~.._ . _~..w~~ 944.0 ft3 OK Q ~
~Volumeprovided _ ~.~.__w..._ _____.M._._.~ - - ~ddifiooaltoormalian i - C~
_ Stora a Volume: SA Waters _ ~ _ _ - - Ooes volume m excess ofthe design volume bypass e . . . 2 3 IBS den view of the ~bioretention cell 1" = 20' or lar er) showing: ( 9
g ` . . _ _ s P, IYorN) Excessuolumemull ypassce, ~ m e ff slo es, 3:1 or lower I,
"1.5 runoffvolu ~.~.w____ 'bioreMn6occeB? a w Underdrain system (if applicable), and
P evelo ment 1 ~ ~~~_~~m _ M ~~~._~_..m~._....~..~,._.........._...~...--mm--•--~----~-• DoesuolumoicexcessofDredesi naolumeloweuerl~ - - r 24-hr runoff ~ E g V (YorN DK ' - Bioretention cell layers [ground level and slope, pre-treahnent, ponding depth, mulch depth, fill
p y ~istibo~tlthroughavogothletlfilter Post-develo ment1- r, 24-hr runoff ft l « ~ ? _ ~~~m~a media depth, wash ~ N
Minimum volume re aired 0 . ~ .._1_. _ _ , WhaUsthaleogthofthauagsth~dtlter? 8; q _m .w,.,~_., _k~ 3 ~ _ _~M..~.....~ ~mri... i _ ._._...w _ _.a_m.. .
ft ~ _ . iVolume provided _ - _ . , - - TT~~-~- ^ - OoosthedesigousealeuelspreadertoeueolydistibufeBou~ N (YorN) Showhow8owissueolydisbi~te, _ 4 A soils report that is based upon an actual Geld investigation, soil borings, and infiltration tests. e
_ _ _ results ofthe soils report m ust be verified in the Geld by DWO, by com plefing & submiibng the soils REVISION S
Kell imensrons _ . _m__ , ..__..._m~._~_.~~_.~-~~-~,__~..~~..~_~... 9 inches OK . ~theBMPlocafedalleas(30feelhomsutlacewa~rs(50~e1i , .investigation requestform. County soil map
~ ~~m.~..~.xi~.....µ . 1 (YorN( OK IPonding depth ofwater „ m...~..m.,..~,,.._.,~... r ~ SAwalers~~ 0.75 t1 f 08 11 09 PER NCDW COMMEIJTS
Pontlmg depth ofwate ~w. . _ _ . _ - . _ _ _ _...m _ 1,259.0 ftz IOK
` IstheBMPlocaletlal~asl100feef6amwathrsupplywells~ Y (YorN ;Surface area ofthetop ofthe bioretenttoncell - ._u.~. r ._w.__ l.._ ~.__,_....w..~_~ w.-_~_--m--. 128 ft OK r ~rsthovogoth~dsidesbpessqualthorlessmacB,1? V or I :
Length. m._ ~ ~ . _
~__~_~~.._,.,m.~~.~a_~.._..___~,..._.,.._..._..,.._~~_~~~___m~ _ . 10 ff OK _ KtheBMPlocatedicaproposeddramageeasemealw~, Width: _ _ _ Y (YorN( OK , ~ _ _ ~ ff aceessthapub6eRighlofWay(ROWJ? - _ ~ ed individual showing: 8 5 A detailed planting plan (1 - 20 or larger) prepared by a qualifi
o. -or• a ius _ . _ . - _ i- A variety of suitable species,
m _ _ Wmw W~.a , w....~.~_ ~-Sizes, spacing and locations of plantings,
i and Soils Summar i ~Lthlaluelocity(homhoabneoisysthmJ sec M e a y M_._ _ we _ . _ _ ~ ~ 9 hr WOK _ _ . - Total quantity of each type of plant specified,
M "Drawdown 6me, ponded volume - _ __M__.., _ ~._...w.~ _~.m~..M~-~-----~~ r_ I trleareasurrouotlm thecelllikel thurder odeuelo meolic s g y 9 p Id YorN 'DK A planting detail, WATER
o ~„~...~~.___.~__.-_~~.mm ~ 33 hr OK , . (I o `Drawdown time, to 24 inches below surface ~-w--~~ ~ ~,w_...,m,.,,-, _ -The source n
N ._-------f,., r _ _ , ~ _ _ ~ _ ~ . _ ~ _ _ _....~,,,,.w,.~.,,...,.,w~,,.,.,,,., 421hr ~ ;~Drawdown time, total _ _ ~ m _ . _ ~ ~ ~ QUALITY
r . A__. ~...m .m_ ~ w.-.. I 4rsthosMesdramm bthebmreteo6ocr~ll roalerthao20lo: N YorN OK _ _ - _ ' 6. An assurance thatthe installed system wall meetdesign specifications upon initial operation once the PLAN
In-srfu soil, e _ . 1.00 inlhr OK . . ~ y Dizetl? Y (Y orN~ -0K project is com pled and the entire drainage area is stabilized,
~ w._~_ 3 ermeabili .Soil Isthedratha earea ermaaeol sthh p 9 P _ _ . ~ . ~ .
o iPlantin media soil: ~ _ ~ . g _ PreUealmeo(Used 1,00 inlhr OK 7 A construction sequence that shows how the bioretention cell will be protected from sediment until the
a ~ Soilpermeability m__.. yp hadedcall) ; _ ~ thdicaM a se w ail m e s entire drainage area is sfiabilized. ' . _ - _ DW6 NA -
N _ ~ ; Grauolacd grass ~ . m Soil composition _ ._„~..._._.._._,~__W.._~~.~.~..~.____..~__~_._~w~~_.~.m~~ ~ ~ , B.~The supporting calculations (including underdrain calculations, if applicable). - 6L8JGOE GM5 ~OR~T
~ Sand (byweight) (8mchesgrauelthllowedby3.5hafgrass( o
_w, a_~_~_ _.__~w ~ ~ 0°I° OK i _ ~ ~ OK m /o Fmes (by weight) GrassetlswaM _ i 9 ;A copy of the signed and nofarized inspection and maintenance (I&M) agreement. € DRAWN:
~ mo.. __..~.m_... m. 5% OK Porebay _ _ I PDh ` 10 IA copy of the deed restricflon.
~ Or amc b wet ht _ _ ~ , l0 9 Y _.g•~.w._..~_.___.. ~ ~_~~_..~m " I _ _ - ~ ~~.._..._..m_M._.~_~..._...~~ _ _ _.._~._.~_m_._.TotaL 100%~ - G1~t~GKED:
w Dlher a ~ ~ _ ~ - _-m~_~ M_____-m- _ _ - 10 (unifless) OK ' i., i GMs
Phos horns Intlez P-Index ofinedia _ z p ( R~VI~WED:
GMs
rn 3
w N.C. UNDERGROUND UTILITIES NOTE: DATE:
A~ I ('~f~STRUCTION TO BE IN ACCORDANCE MAY 12, 2009
U U
Z W J 3 DAYS BEFORE DIGGING CALL WITH CITY OF BURLINGTON, NCDOT AND NCDWQ SCALE: 120' TOLL FREE 1800-632-4949
STANDARDS AND SPECIFICATIONS. g of
O O A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY
N V)
t U v
L a
v c
M.
(J

~;a_ t0
N
BIO RETENTION #5 #5 ~
Site Name Lot size (acres) Glencoe ~ 0.14 M
Total Impervious Area area 0.13 , . , . `c,, \9.. _ , ~ T/O, Jr
Drainage Area 0.14 ~
Percent Impervious s 0.93 ~ ~ • r ~ , #s ; _ ~ rn
Rv 0.89 \ ~ ~ ~ ~ - ~ ~ r a / ~
Runoff Volume \ /
Volume=3630"Rd'Rti*Area in acres 'Rti«Area in acres ~ /
Constant - 3630 ® C~ qC e. ` ' \
Rd
Rv o.ss ® , ~S6 ~ . ~ Q„) N ~J ~
Area in acres 0.14 ~ ~ F,gS~?S ~ ~ ~ w
Volume (cf) 450 . ' ~
Surface area @ 9" depth "depth 600 ` \ ~V R ~ .
b ~ ~ _ ~-~s~, -N
Area Provided (sf) 828 ~ ~ ~ ~ INV=u ^ ~ ~ ~ w ~ s
~ ~ ~T~ ~ ~ h.i.i
TN JON ~5 ~ 8~~ ~ ~ e ~ . ~ ~
1 N , ~ - ~~q ~ 2 CHARGf,~~ biR~CTL - _ - 0~0
s . TO ~ ~ 2" H PE _ _ ~ ~
S R ~
FqC ~ ~ INV - .5 ~ " ` F V IRECTLY~~~~ZO~ F~ U ~ M
`SSy TREAM _ ~ ~
~S ~ ~ ~rx r7 ~ In
DRAINAGE - gINAGE .o ~
BAS I N SIN ~ e ~ ' ~QP ~
~ 1
DUMP STER UMPSTER ? ~ CC Mp p 4 P~P~ ~ o OSUR ® ~ 20 SPq~ES ~ ~S SS Q N =
ENCL OSUR E~
WITH ITH ~ HT. T ~ ~ ~ T
GATE SEE D GATE o N
ETA(L E DETq« A 3 s ~ ~
l C ~ N ~ ~ ~ ~ L ~ , ~
~ ~ ~ s - Q . U 1y ` ~ -
QF WAr~9 ~ , o~ o~ T® ~ ~ -
e,~,:l ~ y t 4, F' F ~ 1 e i i ~ ~ R ~
/
~ ~ ~ ,
STORMWATER MANAGEMENT PERMIT APPLICATION FORM 5 ' ~0 ~ ? - ~
401 CERTIFICATION APPLICATION FORM ~ o8/IA/r~9 ~
PPLEMENT BIORETENTION CELL SU ~ ~L ~ ~ ~ E DY
~ %
This form musf be filled out, printed and submitted.
The Re uired Items Checklist Part III must be rinfed filled out and submitted alon with all of the re uired informafion. ; _ _ _ . I _ _ q ~ ~ p ~ g p Basin Elevations fll. REQUIRED ITEI . REQUIRED (1"EM5 CHECKLIST
-s _w_.~~.~.~ .~~~~.~....~.~_...._._..~ro TM__.~.,.~..,~.. w , ;Temporary pool elevation 562.50 fmsl
I. PROJECT INFORMATION _.~......._._.m.~_.. mm ~ ;
Type ofbioretentlon cell (answer Y to only one ofthe two € Glencoe Mill, Burlin ton NC I 1Please indicate the pa Proiectname ~ g ~ 'followin uestions : € ease indicate the page or plan sheetnumbers where the supporting documentation can be found. An incomplete submittal U
m~~~~.~_.___..~_~ _ g..q~.~ ~...m~_~~m_~.. ~ F_..,_~ ..~_.M ~ ~ (packagewiliresulti rckage will result in a request for additional information, This will delay final review and approval of the project. Initial in Z
;Contact name Carl Simmons, PE ' Is this a rassed cell? ~ Y Y or N 0K th a
'Phone number 919-833-083D . , ~ _ ._w.._ _ . Is this a cell with treeslshrubs? N (Y or N)
IDate Mey 15, 2009 ~ _ ~ ~.m_~ _ _ _ :Planting elevation (top ofthe mulch or grass sod layer) 561.75 fmsl ~w_~~~._~ ___~w.....~
IDrama a area number BtORETENTION #5 _ _ _ _ _ ; Pagel 9 Depth ofmulch 3 inches OK Pagel Plan - Z
~._..._...~__a.~ . _ _.m.._~.m ~e_.. ~ ~mM Initials eet 1 Initials Sheet No, '
t Bottom ofthe planting media soil 559 fmsl 2 ~_m_.~ . ~ _ _ ~ .m ~.a~_re__.a_.~~ _ . - ~ _2 _ 1 Plans (1" - 50' or larger) of the entire site shovNng: ~..I ~
II. DESIGN INFORMATION Planting media depth 2.75tt I-Design atultimate build•out, ~ .i i• Oif•site drainage (if applicable), ~
ISite Characteristics -~w .~.rv ~ . _ Depth ofwashed sand below planting media soil 0 ft ~~.~.~~.._.....__~m__...._._ _ m__ ~ m , ._.._.~_..,_._~.....~._.._...~mr_m~~_~ _._M_.,__....
6,263 ~ ;Drainage area ft ) ~~~..~.,m,.~~.,_m~..~..µ_.......~~._~ ~ I• Delineated drainage basins (include Rational C coefncient per basin), ~ M -Cell dimensions, ~ u.i
llm eruious area 5,551 ~ ~ P ~ •~,_MAre underdrains being Insthlled. Y (Y or N) ,-Pretreatrnentsystem, ~ W
~ ~_M...,,. ~ __m__.. . EPercent im pervious 88.6% -High flow byp
. M_ M__~.. ~ F...._ _ _ ~ ~ ®
Design rainfall depth 1,0 inch )How man clean out i es are bein installed? 7 OK ~__..mm.... ~ __rv._w.~__ Y .__....~_~.~.~.m..~~ U ~~L^^
~ ~~_._I Whatfactor ofsafety is used for sizing the underdrains? (See :Peak Flow Calculations ~ ~ 2 OK
.m ~ _ . _m.m_... ..m.m ..w BM P Manual Section 12,3.6) r `Is prelpost control ofthe 1-yr, 24•hr peak flow required. N (Y or N) ~.~~~m_. VJ
. m a___..ro...~~_ _ _ . _ --;Additional distancebeiween the bottom ofthe lantin media and
11- r 24-hr runoff de th in p g 1ft Y~ P m~~_,~ ~..m_......._ .--mm---------- ---p------~-----------~- ----w4the bottom ofthe cell to accountfor underdrains - _ J p 7 2 Plan details (1" = 30' or larger) for the bioreiention cell showing:
=1-yr, 24-hr Intensify Inlhr M.~ _ ~..~_.w._~~ ~a...~~..~..n._~ ~ - . _ _ ~ Bottom ofthe cell required 558 imsl '-Cell dimensions ~
3 p Y p . _ . ';Pre-develo m ent 1- r 24-hr eak flow ft Isec _ . _ _ . F ,.m, . ~ . . , . A~ . , ~ 3 -Pretreafinentsysiem, Q
~SHWT elevation fmsl ,;Post-development 1•yr, 24-hr peak flow ft Isec -High flow bypass system,
.__.,....._~....~..~_.__-..~._...__..w....._....~,,w.__,_~~....__-_._...._.. ~.__,....~__m_._~ Distance from bottom toSHWT 558.ft OK ,PrelPost 1-yr, 24-hr peak control ft3lsec _ -Maintenance access, G~
~...m..._.~_~.__~ ~__w.~.~~.~. ~ _ _ ~ _...m _ z ~..~.,m.m..µ ~ .~....~.w~ Planting Plan -Recorded drainage easementand public rightofway (ROW),
_ ~,.____w...__~___...__._. , w ~ . ~ _ ¢Storage Volume; Non•SA Waters i m m.. _.,e~~W_~ _ ~ ~m~~..,~...~..__....._.._~ Number oftree species - Design at ultimath builtl•out,
~Mlmmum volume required 450.0 tt3 ~ ' --~~-~m-~-~~---
Number ofshrub s ecies ,Volume provided ft _ . _ . . 622.0 a i0K i
Num ber of herbaceous groundcover species __w. ___..~..~...w.w . .._._...._~~~~w.._..~~~ . , N
=Stora a Volume: SA Waters _ - ,n_ ~ . .__~_..___~__..~_~~~ri.._.__m_.._ - ~~---W--------~-~-~- -Additional Information
i u 3 +1.5 runoffvolume ft . ~~_._.m~m~..r.~..~m~.~..~__~ w _ ~ _ _ ..::.__m_.._..mm.n~ _ - ~ ~~~~-IDoesvolume in excessofthedesign volume bypassthe . em~µ_
" 3 N Y or N Excess volum e m ust b ass cell. Pre-development 1-yr, 24•hr runoff ft ( ) Yp 3. Sectionuiewofthebioretenfioncell(1"=20'orlarger)showing. REVISIONS
~~m_ _ _.~._u._~.~.__~ ~.____~____w.~__.__.__ ' Ioretenfion cel 3 ) ost- eve opmen -yr, - r runo ft ~ ~ ~ - Sitle slopes, 3:1 or lower
.m....M Does volume In excess ofthe design volume flowevenly - Underdrain system (if applicable), and ! 08 11 09 PER NCDW
Minimum volume re uired g pfta Y Yor N OK q ~ ~ _distributed through a vegetated filter? ___.__._.w . ~ . ~ - - Bioretention cell layers [ground level and slope, pre•treatrnent, pontling depth, mulch depth, fill COMMENTS
Volumeprovided ft ~ ~ What is the len th of the ve etated 3 g g filter? ~ ft r.. _m_~ .m.... _ _ ~ r~w~ ~ ~..~~....~mm_~~ _.__......_.._..._.:.,..M,__.W......_~ a....m..._..w._..._____~._____.._. _ _ _...._______w~~~.~__ media depth, wash
a z~..~~,_~.~.._~~~~ Cell Dimensions
M ~ --mm- -~-~--A--------~~IT~-~` ~---~---~i---~---~ m--~- - ~ ,Does the design use a level spreader to evenly distribute flow? N (Y or N) Show how flow is evenly distributed. ?Pondin de th ofwater 9 Inches OK 4. A soils report that is based upon an actual field investigation soil borings, and infiltration tests. The
N 9 p _ . _ . __.____.....m~. results of the sails reportmustbe verified in the field by DWQ, by completing & submitting the soils
r i 0.75ft '.Is the BM P located at least 30 feet from surface waters (50 feet if Ponding depth ofwate ~.__~____a~ ~ ~ _ Y (Y ar N) OK c M.._.~~ma~. ~ __....~.~~.~.m..m investigation requestform. County soil map
~ `Surface area ofthe to ofthe bioretention cellµ~mm~mmm 829 0 `OK 'SA waters)? ~ . . ........w . m~_~ ~~.w ..w. N P ._~mm..~__....~.__..__. __._.__..m.._....._._......_~ ..__..,................,_.._................._m~~~.~~~m.._~_ ~..._.._.~m_.~~~~~.__....~..~_....~~.._. f...~.~_..._.._._...e__._...~ mm~~. ~ 85 ft 10K {Is the BMP Iocaled atleast 100 feetfrom water supply wells? Y (Yor N) OK
;Length: ~m~~ _ ~ ma , WATER
G0 ~ 1 ft K ;Are the ve ethted side slopes equal to or less than 3:1? Y (Yor N) OK _ -
m Width: 0 =0 g _ 3 4..~..~_~.._,~. ~.,m.,, ~._~~~~,w.,.._......,~...._....,w..,..,a.......~._....~..m. ft _.-.~_-_._~_.._.~~-m~~,.._~~~,._ "~s the BMP located in a proposed drainage easementwith ~ -or- Ra lus ( ) QUALITY
Y Y or N OK o ..m.,µ~~ ~_~.~_~.~mm~.~ w,-~-: ~ - ~ ~ ~._.._._w _ _.w_...w. ; m.wW w~.~ _.~access to a public RightofWay (ROW)? ___7_ ~ _ ..m~~ _ _ PLAN ___.7__ 5. A detailed planting plan (1" -20' or larger) prepared by a qualified individual showing:
__w~.._. _.._m... , _ ~ ~ . _ ~ _ . ~ _ _ _ ~ ,Media and Soils Summary - A variety of suitable species,
a ~~_______.~_~_~_M__ ~.w _~_W.._ ___..____._____._.__...~.~___~w_~.____~~___ , ~ I n 'm nded volume ~ 9 hr IOK ilnletvelociiy (from treatrnentsystem) fftsec , Drawdow fi e, po 1 ~ ~ _ _ w.......~w_~___ -Sizes, spacing and locations of plantings,
.._.~_m..._~w...._....~.._..._.__~W.w. ~..W..._~~.w~w..~__u_._..__... ~ ~w w . _ ~Drawdown time, to 24 inches below surface ~ 33 hr `OK _ -Total quantity of each type of plant specified,
~ m m_~~.._..~_ _ ~ _ ~~~Is the area surrounding the cell likely to undergo developmentln° I - A planting defiail, DWC~ NAME:
Drawtlown time, total: ~ 42~hr N (Y or N) OK m ~......._._w_.___.~_~...w.~_. ~ ~ ____.~___..w_....r___~. _ ~ t e Lure. I -The source n ~ f~ORET
~ In-situ soil, _ _ _ _
v ~ _ ~~IAre the slopes draining to the bioretention cell greater than 20%? N (Y or N) WOK W Soil permeablhiy 1.00 Inlhr ,OK _ _ . , . m.._ . _ ~ _ _ . _ . _ 'NOTE: D1~AWN: _ 6. An assurance thatthe instailed system will m eet design specifications uponinitial operation once the A~~ C Q N STR U CT ~ ~ N TO B E I N ACC 0 R DAN C E t~~h
v Planting media soil: i ~ ! GIs the drainage area permanently stabilized? Y (Y or N) IOK .project is coin pleie and the entire drainage area Is stab1lrzed GhEGK~D:
w _~_~_.__._~_..._~~_ar......_..._......__._~._~_......._~.__~_._.._ a_ ~ _ ~ Soilpermeabiliiy ~ 1;00 inlhr ;OK PretreatmentUsed ~ _______w..__~ ~-.,WITH CITY OF BURLINGTON, NCDOT AND NCDWQ
~ _ m~_ _ . ~ _ _ . _ __w__ m Soil coin osition I ~ Indicate T e Used with an "X" in the shaded cell _ 7. A construction sequence thatshows howthe bioretention cell will be protected from sediment until the GMGj
YP ~ ~ w................ ._._.m, . _~.o...~ ~ _ w. _ w. e ~ . _.w. entire drainage area is stabilized. ',-STAN DAR D S AND S P EC I FI CAT I 0 N S . {ZEVI~WED:
% ~ % Sand b wet ht ~ 85% OK ;Gravel and grass z I ~ _ X 7 w E_~~_._. ...(.Y. _ 9_.~.~.~.._~.. . . _ ~7 8 The supporting calculations (Including untlertlrain calculations If applicable). GMrj
° 10% OK ~ /o Fines (by weight) (8 Inches gravel followed by 3.5 ft of grass) z . _ _ N.C. UNDERGROUND UTILITIES pq~.-~;
Q A rnmi nffho cinneA end nnf~ri~er~ inenorfinn ~nrl moinfenonro (Ikh~l ~nreemont ! i~
7o urganic (oy weignT) ro _ vn _ a swaie . 3 DAYS BEFORE DIGGING CALL MAY 12, 2009
o Total: 10M Forebay - TOLL FREE 1800-632-4949 10.Acopy ofthedeed restiction. SCALE: 19:=20'
°o ,a...._....MM.~n ..na... _ _a m_ Phosphorus Index P•Indez) of media 10 (unitless) OK Other ce
ALONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY
v 'o L 7 of
v
c
U

t0 ection Two
- River Ililis ~
Sfat;on ® ~ I~ rn
? ~ ~ ~ / r ~ ~
/ +'l+ ~ ~ ~ i
• + ~ i
~ ~ ~ N
~ i ~
.
z
~ ~ ~ ~
irk ~ F. ~ . ~ ~ ~ ~N ~ F ,~~i~
•y~ ~ ~ .
~ \
/ ~
~ ot, y+ ~ BIO RETENTION #4
~ ~ ~ ~ Site Name Glencoe u I ~
~ / Lot size (acres) 0.7 ~ + . ~ ~ ~ Total Imperious Area 0.63 ~
. , ~ ~ 4 ~ Drainage Area ~~~~~~~~0.70 v
Percent Impervious 0.90 d G ~ + ~ Rv ----_...0.86
WArE9 ~ W
.py r r } ~ ~ Runoff Volume 0 ~ ° _L Volume=3630*Rd*Rv*Area in acres tt~i. ~ ~z~~ar ~ I E E T ~ ~ I~ ~4 =
} "v •c
fNV=52° Constant 3630
STORMWATER MANAGEMENT PERMff APPLICATION FORM NOTE. Ra 0.86
401 CERTIFICATION APPLICATION FORM ~ ~ Area in acres 0.7
B I O R ET E N T O N# 4 H AS A Volume (cf) 2185
BIORETENTI CELL SUPPLEMENT ~ Surface area @ 12" depth 2185
This form must be filled out, printed and submitted. POND NG DEPTN OF 12". Area Provided (sf) 2262
The Required Items Checklist (Part IIIJ must be printed; filled out and submitted along with all of the required information. ~ ti 1 ~3 /li / /
" ~ ~
I, PROJECT INFORMATION IIII REQt11RED ITEMS CHECKLIST
iProiectname Glencoe Mill, Burlin ton NC Basia6l¢uafioos ' 9 M _ . ~ i¢m ora oolef¢~auoo b34:26fnsi
Confactname ~arlSimmons,PE P ~p gym.. ~ ~ ~ ~ ~ ~
- TYP¢ ofbior¢tenVon : ~ars~~cr "ti - _ !Phone u be p°` "'iooolyoo¢ofih¢buo n m r 919-833 0830 ~ _~..~_v._- Please indicate the page or plan sheetnumbers where the supporting documentation can be found. An incomplete submittal 08~~~/09
Ma 15 2009 ~Ilmgogqu¢sionsl; Date y . ~~w w.____.___ _w_~,~.~._Y..-...-..._ mw..w.._ is6aagrassedc¢li? Y IVorNJ 'OK package will result in a request for additional information. This will delay final review and approval of the project, thitial in th
Drainage area number BIORETENTION #4 _ _ _ , - _ .__.w_ _ bdlMacellwtlrtr¢eslshmbs? ~N IYorN(
- ~Plac6og¢MuaionltpoffsmulchorgrasssotlMy¢r) ~33.26iaM II. DESIGN INFORMATION _ _ _ Pagel Plan '
6¢pfi~ofmulch 3~rch¢s i0K ~..~~._~~..H.~~_ !Site Characteristics ~--r- Initials Sheet No.
e r ~ BolMmofth¢planhogm¢di¢sml S30.SinM ~ 1.,Plans (1" - 50' or larger) ofthe entire site showing:
iDrainage area t 30,492 _ , _ . , ,r---. . Flao6og media d¢pM 215'fl • Design atultimate build•out, ~ 1 -Oft-sith drainage (if applicable), V
;Impervious area 22,443 ~ _ . ~ _ ~ _ ,...m.........____ D¢pC~ofurash¢dsaodb¢IowpMokgm¢diasoi ~0 I • Delineated drainage basins (include Rational C coeihcient per basin}, z
iPercentimpervious 90.0% _ _ __~._.__W...~..___..._..~._.__._~___W._.~W.......__.~.~.___.._~ __~.,~.5..._._.....,~_~~_~~___. ~_.__~w___w.____~_._.V_____..____. I -Cell dimensions,
, Design rainfall depth 1.0`inch I Pre uotl¢rdraius h¢mg mstall¢d? Y ,1 c' N) ? -Pretreafinentsystem,
M..,,_..~,.~___u_..~___._.~._m_.__...__~.......r.._~.~~~.~~,__ • High Bow bgp
:Peak Flow Calculations _..___~_~~__.__w..~~_._ m, ~ ~ ` ~ Howmao cl¢aooul i¢sareb¢m i¢stall¢d? 1S OK Z O
fired . IV Y or N bs rel ost~ontrolofthe1- r, 24-hr eakflowre u ' _p P Y P q ( ) f ' j Q ~
1-yr, 24-hr runoffdepth in N~ 9 ( 0 """"m"~"~" Whafkc~rofsafe isus¢dbrsi~ teuoberdrai¢s? See 2 K ~.~__.~_._rm.__~~_..__~ BMPMaoualSecloo12;3,6J ' J J
~1-yr, 24-hr intensity mlhr s .............m,~._.._. ~..._..._._.a~a.._.~...~~_.._-.~~.._.~. ~.~„_~~.~~mm_ .3 RddiVooaldis~ceb¢tw¢¢ntl~ebokmof~¢pMo6ogm¢diaand J ~
;Pre-development 1-yr, 24-hr peak flow ft isec ~ ~ Iii 0 ...~....~._-w,_~~ _ V~¢boitamofk¢c2Ntoaccouufforuod¢rdrams w___ - ~ - ~ 2. Plan details (1" - 30' or larger) for the bioreten8on cell showing:
;Post-development 1-yr, 24-hr peak flow ft Isec -Cell dimensions L ~ m
BolMmoft2cellr¢~mr¢d ~ - 629~56r ~ ~.m•. . q PrelPost 1-yr, 24-hr peak control 'ft3lsec ~ _ a ~ - Pretreatrn ent system, r
HW1¢M~a6oo .I ti~•. ~ -High flow bypass system, ~ W
StorageValume; Non•SAWaters Dis~oc¢tombo~mto~IWi r235h OK -Maintenance access,
,Minimum volume required ~ 2,1.85.0 fta ' A _ aofmg ao - Recorded drainage easementand public rightofway (ROW), - Design at ultimate build•out, ~ U
;Volume provided 2,262.Ofla ~OK ._w_.~__... _ v _ . ~ ~ Numb¢rofh¢¢species
m, Numb. g ¢rofshrobspeci¢s IStora a Volume. SA Waters C1 z ~
i... ...._.mm mmm___~ .~.U _ _ ~ ~ W
11.5" runoffvolume fta Numb¢rofh¢rbaceousgrouodcor¢rsp¢a¢s
;Pre-development 1-yr, 24-hr runoff fta ~ Atldifioaallaformafioo~~ • r~.~..__., ___._._...,,_,m. WJ ~ _ _ r_ _ . ~ _ ~ C~
Post•develo ment 1- r, 24-hr runoff 3 -~~~~-m . p Y ft Doesvolumerl¢HO¢ssoftl~¢desguuolum¢bypassih¢ , a . ~ _ N ~;YorN iExcessuolum¢mustbypassceG; 3. Section view ofthe bioreiention cell (1" = 20' or larger) showing: -Side slopes, 3:1 or lower
,Minimum volume required O,fl ~ bior¢~otioac¢g? ,.W.._. w -Underdrain system (ifapplicable),ond
=Volume provided fta ' Do¢suolum¢rI¢xo¢ssoftlr¢tl¢s~cuolum¢flow¢~¢oly ~ i - BioretentiOn cell layers [ground level and slope, pre-treatment; pontling depth, mulch depth, 811 5 (FIJI
~ishtuMbSrcughau¢g¢~Mdfil~r? ..9 1 ;media depth, wash
#Cell Dimensions o..._. m. _ _ m~_ _ . _ , w. ~ WhaiKk¢I¢ogtlrofb¢v¢g¢Mf¢btll~r? ~-f l i ~ [/~j~/~) i.. ........7 ~1I
iPondmg depth of water 12 inches OK ~ - ~ 4. A soils report that is based upon an actual field investiga8on, soil borings, and infiltration tests. The M
Pondrng depth ofwater 1.DOft Do¢stl~¢tl¢sigous¢al¢u¢Ispr¢ad¢rM¢~¢olybisbibu~io~? N jYorNJ jShowhowiowk¢u¢¢~disVibuted. resu8s ofthe soils reportmustbe verified in the field by DWO, by completing & submitfing the soils
'Surface area ofthe top ofthe bioretention cell 2,262:0; WOK - - ~ - . _ Ntl~¢BMPb~Mdafl¢asl30fe¢lhomsurfac¢wa~rs150~¢tK ,investigation requesttorm. Couniysoilmap N i ,
Length: 14~7ff OK a 4 iYorN) ;OK _ _._......._....mmw~.~~~~m_._..~.~~.~.~...M.....~~~~ _ . ~.__mm____~._....~,~._~.~..~_~ ~e~ _~.~..__._...w z
Wrdth 39ft OK ~ . _
mm_....._~_.____m~~ v . _ _m~~__ Ntl~¢BMPbakdall¢as1100fe¢lhomwatrsupply~3s? Y ~YorN) ;OK •or-Ratlrus ft REVISIONS
~ _ .m._~ M _~_~amm~~., _ .w.m...__~ _ ~ :Rr¢tl~¢~¢g¢tatedsid¢slopesegualborMssfl~ao3,1? Y IYaN) ;OK ..M.. _ ~ _ ~~.m m _ ~ _ j _
Media and Soils Summary ~ ,Ktl~eBMPlo~~dmapropos¢ddrainag¢¢as¢m¢r~fwiW _w~__-.~_.._......_ ~_..__.~_m_w__.__,,..~.__ _ _..m... m Y IYaN) OK _ 6E~ 5 AA variieiy of suitab el species~0' or larger) prepared by a qualified individual showing: ~ 08 11 09 PER NCDW
Drawdown time, ontled volume ~ 12 hr OK , accesstapu6licRighfofWayIRDWJ? P _ ~m.. m ~._....___m__ . _ _ _ _ COMMENTS
Drawdown time, to 24 inches below surface 36 hr OK ~ lol¢lu¢loci~ltomb¢aM¢ois}'stem) fls¢c -Sizes, spacing and loca8ons of plantings, ' ~ - Total quan8ty ofeach type of plant specfied,
Drawdown time, total 48hr w. ~ ~ _.~~.m. ~ _.~;,._,._...__._......~.~...__..mw...m_~~_M.._... ..~..~-..~ww._......M.~. Isth¢areasuoouodiogE~¢c¢Ilhk¢[ytund¢rgod¢u¢lopm¢oth , I • A planting detail,
~ In-situ sort. ,V rYorN~ OK ) -The source n
N _..~.w~~.~_,~ ~_.~Am~ ~~_M~ M Soil permeability 1.00 inlhr OK
...~M~.~.~ _._.~.._._M_.~_....._._ .............__...~~~m_~_~.~~_m._~~..._~.~~.~_..........__ o i ~ Planfin mediasoih Rr¢b¢slo~sdraioMgStl~¢bMr¢feutlorc¢Ilgr¢afertao20~? "1 Ilo I) OK . 6. An assurance thatthe insthlled system will meetdesign specifications upon initial operation once the
0 9 N ~~~.n 3 :,project is cam plete and the entire drainage area is stabilized.
Soil permeabtliiy 1.00 mlhr OK ~ ~ ._~_~.,m~.__.._.` Gt¢dramag¢ar¢ap¢rmaa¢otlyshb~i¢b? ;f or N) =0K _ ~ _ ~ L A construction sequence that shows how the bioretention cell will be protected from sediment until the
' Soil com position _,~..~.~mm ' Pr¢t¢ah¢¢alUs¢d ~ m o ~m~~_._._._._..._~__.........._~~.,~ a _.._~,.~~.~_~_...,~~_~u~,......~,. ; entire drainago area is stabilized. QUALI 1
Sand b wet ht ~ 85/o OK , a~ 3 ~ Y 9) ....w.~~_........~__,.__._..._......~._......_ INbiraMiyp¢Us¢dw~a¢ X mtt~¢shad¢dcell) . ~ .w_~ _ _ _.w _ 6 8 :The supporting calculations (including Underdrain calculations, ifapphcable). PLAN
Fines b wet ht X1`0°/o OK o (Y 9) Orau¢I and grass .,m_~._._. _ ..............._._..m..mm-.r_ . ..._...m •.~m~ . m . ~_w...~. ~ X
~ ' % Organic (by weight) 5% i0K ' 8{iuch¢s raueltdovndb 3.5Bof rays _ - _ 9 Acopy ofthe signed and notarized inspection and maintenance (I&M}agreement
a ~mm..w.,.....~_w.. ~.~~.__.w..we.~__.~ ~ ..-__.-~~w ~ 1 ___9 _Y 9 L_ ~ o , Total 100/0; Grass¢dsNral¢ OK
W ;Phosphorus Index (P-Index) of media 10 (unitless) {OK for¢hay _ 10 A copy of the deed restric8on.
~ ~~...~..~.......~..~....~___._....______m___..______.~_ m_____~ 0 _ DW6 NAME:
m Ot¢r ' ~ _ _ ~ _ e . ~ .
U + u~ ela~r
W
O U Z NOTE: DRAWN: PDN
W J ALL CONSTRUCTION TO BE IN ACCORDANCE GNEGKED:
Df WITH CITY OF BURLINGTON, NCDOT AND NCDWQ GMs
STANDARDS AND SPECIFICATIONS. REVIEWED:
W GM5
U Z
W N.C. UNDERGROUND UTIIITIFS DATE:
J MAY I2, WOO
O 3 DAYS BEFORE DIGGING CALL
O N TOLL FREE 1800--632-4949 SCALE: 1 "=20'
t U N
O A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY 6 of
a o
c J
U

td N
0)
, ® ~
~ ~ / ~
0 ~
ACERS ~ ~ ~ ~ ~ ° ~ ~ ® ~ _ _ - co
P~,CES ~ VASE-3 ~ cn N
/
/
/ ~ can ~ U ~ z
- y
a ~
~r~" W ~
V se o , _
O , (
~ ~Y +a ? e 1 ~ ~ ~ ~ Z W , i ~ ~ ~ O
BI0REfENTION#3 ~ ~
U s~ ti F' ~ Site Name Glencoe
Lot size (acres) 0.29 ~ ~ r// '"0 ~ V Total Imperious Area 0.25 t~
r ' ~f~~~ ~ i Drainage Area D.29 ~
off' ~~~E9 , Percent Imperious 0.86 ~ ,'i _
t v~ y ~ ~ Rv D.83
'r ,,~i, ~ -a i RunaHVolume Z
~ ~ Volume=3630'Rd'RV'Area in acres
~ _ ® ~ Constant 3630 ~
STORMWATER MANAGEMENT PERMIT APPLICATION FORM Rd 1 overhead ~ ~ R~ o.e3
401 CERT~ICATION APPLICATION FORM electirc t0 . 'Area in acres 0.29
be removed ~ - ,_Volume (cfJ 869
SIORETENTION CELL SUPPLEMENT ® ~ ~ Surface area @ 9" depth 1159
This form must be filled out, printed and submkfed. ® , I. ~ ~ Area Proided (st) 1380
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
_ _ m m _ . _ . _ m n _ . ~ _ _ w..~.~ . _
Basin Elevations i ell. REQUIRED ITEMS I. PROJECT INFORMATION __w_~.~~~_..______ _ _ _ _ REQUIRED ITEMS CHECKLIST
Inc Mill Burlin ton NC Temporary pool elevation ~ 542.ODfmsl Protect Hain e G e oe g , _
_~._..~~..._.,,,,,,~..,.~__.e..._ ~.~_......_._,........__.._W........__.~_..~,......_.._..._.._...._... Type of bioretention cell (answer "Y" to only one ofthe iwo '
Contact name Carl Simmons, PE ;Please indicate the page following questions): ~ r acka a will result in a se indicate the page or plan sheetnumbers where the supporting documentation can be found. An incomplete submittal
Phone number 919-833-0830 _ a _ , p g _mm~..m_.__ Is this a grassed cell? Y (Y or N) OK kage will result in a request for additional information. This will delay final review and approval of the project. Initial in
_ m.~__ ~ ~ . Date May 15, 2009 a8/I~/a9
Is this a cell with treeslshrubs? N (Y or N) Drainage area number °BIORETENTION #3 w___W__ ~ ~ _ _
- - - ..Planting elevation (top ofthe mulch or grass sod layer) 541.25 imsl _ _ ; Pagel Pla Pagel Plan
- Depth of mulch 3 inches ;OK titials Sheet No.
11; DESIGN INFORMATION . _ _ ~ Initials sheet Na Bottom ofthe planting media soil 538.5 fmsl 2 _ ~._~__.__...._~~m_~.....~__~ - , _ 2 1 Plans (1" - 50' or larger) ofthe entire site showing:
Site Characteristics w__r.~._ ~~~_~~._~W~....~._~.~...~m~..~. _ ~ Plantingmedia depth ~ 2.75 ff ' ...~_.w ; Design at ultimate build•ouk
g ~ _ _w ~ _ , Draina a area 12,632 De th of washed sand below lan6n media soil 0 ft ' P P 9 z ) I-Off site drainage (if applicable),
Im erviousarea_ ~ ~..~___mm___._m._~mm m.~ P -Delineated drainage basins (include Rational C coefficient per basin), U
Percentemperveous 86,2°/° I°lo ~ .a._...__. .__._W_...~Areunderdramsbeinginstalled. Y (Y orN) i _..mm._~____._...~.. ._..n~._.___._ -Cell dimensions, Pretreatrn ent system ,
Desi n rainfall de th ~ 1.Oinch ~ I g P -Nigh flow byp
_.W_ ..........._.~w.._...~_ _...~_w.._...._...._~___....__ _
How many clean out pipes are being installed? 3 . IOK Peak Flow Calculations ~.,u._... ~~..~,.w~....._ mmMm _ _ Whatfactorofsafeiy isused forsizingthe underdrains? (See
Is prelpostcontrol ofthe 1-yr, 24-hr peak Bow required. N (Y or N) 2 OK , z o
_ _ _ . _ ~ BMPManualSection1236) _ _ _ 1- r, 24-hr runoff depth in ~ _
~ ; ~ ~ ~ ~ ~ ~ ~ Additional distance between the bottom ofthe planting media and) 1- r 24-hr intense inlhr ~ 1 ft ) _ ~ i r
Y ~ tY E , _ .~,~,~~.,..w_, r__... _3~_.~.. ~ aebottomofthecelltoaccountforunderdrams ~ , 2°Plan details 1 - 30 or la~~ _ ger) thr the bioretention cell showing; ~ ~
Pre-development 1-yr, 24-hr peak flow fl Isec m _ ...r...~.~~~,.,..~,~..~..._.a....~...._m-,..,,,..~..._~~.. _M_.......~...__~m.__. q imsl F r Bottom ofthe cell re uered 537.5' -Celltlimenslons
Post-development1- r, 24-hr peak flow fl3lsec ~~.~-~-~-._..-__.._...._._..~.m.ma~m_..~ Y SHWT elevation fin sl ....a.~__ ~ _ ~ _ _ _ _ _ w _ ~ -Pretreatrnentsystem, ~ ~ m
PrelPost 1•yr, 24-hr peak control fl3lsec _ Destance from bottom to SHWT i 537.5 ft OK -High flow bypass system, ~ n
.............~_w_ .__...,~m~.,___. _ _ w.._ .._.~_w._ . Stora a Volume: Non•SA Waters - M aintenance access, J W -t-+
g ,Planting Plan .m._._ _.w... __.,_,,._W.,_ _.W_.... ____.__~.m__~__ ..__,n _n.m ~ ~ E . , ~ 869.0 3 a -Recorded drainage easementand public rightofway (ROW), ~ 0
Mmemum volume re uered fl [ Number of tree species n m ..µM_~_......._~_~_~...._._~_.._._~~__.~.___~~~~__._.._..__...~.mm . _m._..~.._~ m r Design atultimate build-ouk ~ r ,
V I m rovided 1,037.0 3 OK o u e p fl Number ofshrub species _.....__.MM,_ ~ _u _ m. ~ .....~.a ~ . . w ...W. _ ~ _ ~ _ ___~___.m__~ _._w._w_. ~ __m-_.~._~..~. .~m~,mm_~.... _ ~.K.~~_.~ ~..~.._M _ 7V `fin
i Num ber of herbaceous roundcover s ecees . Stora a Volume: SA Waters 9 P 9 .__~~w._~~ _._.~_~~__~..m.l~ e I ~ Z VJ
__....~...m__.~ ~ _e.~_~.m~~ , ~ 1.5"runoff volume 3 v.._.~. . _~..._W~~._.__.m ~v,_ _m, w_~ t ~W ~
..~A.mm.. ~M~.~_.~ _ fl M. _ ~ ~~_m ~ Additional Informateon ~ } 3 _ .I . _.w._. _ - _ W
~ .Pre-develo ment1- r 24-hr runoff fl 1 x I ass the I-~- -Doesvolume en a cessofthe design vo ume byp 2 P Y~ r, . a,~_ _ _._...~.r ~ .~._~.m ti N Y or N Excess volume must b ass cell. ; ~i, s ( ) YP 2 3.~SS de slop s~3~1eoriloweenflon cell (1" = 20' or larger) showing: ~ ~ V
Post development 1-yr, 24-hr runoff fl bioretention cell? ..._~A~~~._____.._m~.~_~___~__ _ ~ _ _ __m_ _ _ _ ~ . , _ ~ _ __-._.......__._.w ~ mm~_._ ~ ......A . ~ m.. I .
3 I ,Minimum volume re uired 0fl 1Does volume in excess ofthe design volume Bowevenly q _ . ._..._.w__.._.,...~__, w_ ~ _ ~ . .._.w__ ~ _ ~ ~ ~ Y (Y or N) OK I I- Underdrain system (if applicable), and Q
Volume rovided 3 )distributed through a vegetated 81ter? p _ ~ _ _ ~ ~ ~ _ E .,w........~..____ ___w.~_.,__.___.___~ _ ~ - - Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, 611 ~ l n
_,~..,_M..._....~ .,........_.m__..~_.., .~~~......_~~~,M...m,_, _.~.,..m„_~_._~__ _ _ ..~.m.M - What is the length of the vegetated filter? fl . r :media depth, wash v E
s Cell Demensions + _ .._.w~,. ~ e _ i ~
Pondin d th of water 9 -inches OK Does the tlesi n use a level s reader to event distribute flow? Y ; Y or N Subm it a level s reader su lement e P ( ) p PP 9 Y P 9 ; _ 4 ;A soils report that is based upon an actual Geld investigation, soil borings, and infiltration tests. The
.Pondin de thofwater 0.75 fl ~ _ .~..____....~.~_w___.__,.._ ~ ~ _ ~._~~.._rv.__._ wr g p Is the BM P located at least 30 feet from surface waters (50 feet if ':results ofthe soils report mustbe verified in the field by DWQ, by completing & submitting the soils :investigation requestform, Couniysoil map N
Surface area ofthe to ofthe bioretention cell 1,382,0 fl~ OK (Y or N) P ~ _ _~~SA waters) , _ ~.r~ ~ _ . _ _ ~ ~ _
Len th, 50 fl OK ~ mm..,_ ~ .
_~~~9~~_~~~~~~mm_~~~.__~~~~_.~_ ~ .~_._._mm_~_.._..~.~_~_...._~~..~.__~IstheBMPlocated atleast100feetfromwatersupplywells? Y (Y or N) OK Width; 26 fl OK r„_m __._~~~..,..M„~,mm_.~.,.....~~..~~.._•w~ ~_w.__ ...............~.M.~.~ _ _..,r, ~m.,~
~ .m_~. ~ ~..iAre the vegetated sede slopes equal to or less than 3.1, Y (Y or N) OK ~._...~~_w_~_.~...__._~__ ______.~a___._____.__ REVISIONS
-or- Radeus fl .m_~ ~ ~a.. ~ . _ a Isthe BMP located in a proposed drainage easementwith ~ ~~_m_.~µ_..~...,._..~.~~~w._......µw~,~...,..._....,.~._~.,_~,.~ ....M~..m~m.m_,_. Y (Y or N) OK
Media and Soils Summar to ,access to a public ReghtofWay (ROW)? 5 Y _ _ t, _.~.....~,,.~.~..____.__..._~.._....~.______.._..~_..m._........___.m~ _.....-....r._.__~.~ e . . _ 5 ~ 5 ;A detailed lantin Ian 1 - 20 or lar p g p ger) prepared by a qualified individual showing: 08 11 09 PER NCDW
9 hr OK Drawdown time onded volume P =lnletvelociiy (from treatment system) fUsec _ - A variety of suitable species, COMMENTS
~ . _ _ _ ~ ..w__ ~ ~I Drawdown t e, to im 24 inches below surface 33 hr OK i___._ _.._~m -Sizes, spacing and locations of plantings, - Total quantity of each type of plant specified,
a - - ~ Is the area surrounding the cell likely to undergo developm ent in r A planting dethil,
~ Drawdown teme, total; i 42 hr e N (Y or N) OK N , ~ ~~~~~~.~._..___.._.a___.-~..~~ _ ~ ~ the futures ao n-s~ u soi: i , mm~.a _...mm~~ ~~_~~~..~w~~.....~ ~~W~~._~__ Y _.~_.___.....A...~~~_ ~ m._~_.~ '`-The source n
~ .~~..~__mm._~_.~ _ v
~ 1.D0 inlhr OK EAre the slo es drainin to the bioretention cell reater than 20%? N ` Y or N OK Soel permeabelety p 9 9 ( ) ° ..w,~..__~_.~__...~_,,._~•~~.__.~~..~.~._~ ~ _ _ e I 6.;An assurance that the installed system will meet design specifications upon initial operation once the
N 'Planting media soil: ~ m_ . ~ _M._._ ...~..m_~..~_~~.~.....m... _ ~Isthedrainageareapermanentiystabtlized. Y (YorN) OK ;project is coin plete and the entire drainage area is stabilized,
co Soel permeabe6iy 1.00 enlhr OK ~.-.~....~Pretreatment Used _ ~ _ _ WATER
° m__. .~m__._.._. an_ _ N.. _ . . m. _ Soil composition Indicate T e Used with an "X" in the shaded cell 7 €A construction sequence that shows how the bioretention cell will be protected from sediment until the
~ ( YP ) -entire drainage area is stabilized. ~f V~L~ l
~ to Sand (by weeght) 85 /o OK ~ Gravel and grass 8 IThe supporting calculations (including underdrain calculations, if applicable), ~ E
° °/o Fines b wei ht 10 /o OK ~ 8 eches ravel followed b 3-5 fl of rass co (Y 9 ) ~ W......_.,.m~_.._~~.....~.~~....____~_.~_~__~ a ~ _ _wW... M~, ~~u...~ .~M~_Yw~ ~ __m.~. _
N Organic (by weeght) 5% OK ) Grassed swale OK r., w....,.,m 9.IA copy ofthe signed and notarized inspection and maintenance (I&M) agreement,
~ Tothl: 100% P Forebay - - ~ _ w.w..,.,r.__ _m.~ ~ _ ~...w~.,~_.~ . ~.~~_......_w...~_~~. _ _ _ 10.~A copy of the deed restriction,
o Phosphorus Index (P-Index) ofinedia 10 (unifless) OK :Other DWC~ NAME:
N ..~,,...........m.m..., ...........m..w.~.... .............._.e.. .._.,.,.w., ~_u_._ _ _._..u. _ m ~l.e~coe u~ ela~r
C~ G
U W
O U NOTE: DRAWN: PDt1
Z W J ALL CONSTRUCTION TO BE IN ACCORDANCE GI~EGKED:
i WITN CITY OF BURLINGTON, NCDOT AND NCDWQ GMs
STANDARDS AND SPECIFICATIONS. REVIEWED:
W 0 GMs
U Z
N.C. UNDERGROUND UTIIITIFS DATE:
J ID MAY 12, 2449
tD O 3 DAYS BEFORE DIGGING CALL
O N TOLL FREE 1800-632-4949 SCALE: 199_2:
U
N .O s. A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY 5 Of
v
c
tJ

c0
N
,
P ® ` ~
e
5 ~ ® ~ -
~tii ~ , o ~ e „A~ WEIR ~
_ , - ~
vJ ~ ~ ~ ~ ~ EL 55 ~ ~ ; _ _ - 6'WEIR~.,~
\ 8~ . EL. =556. • •-i • ~ ~1V ~Q' -
l' ~ ~ ~ Gj W~ ~ E , . ,
'C~ ~ ~ R~M~ ~ _ goo N FRCP ~
, ~ / FP ~ Z ~ ~ ~ ~ ~~o ~ ~
-.,Q~~ ~ ~ ; . ,,~~~gh HDPE ^
~ ~0 • _ - ~,~pQ ~ , ~ DISCHARGE DIRECTLY p O
= ~ ~ ` ' ~ TO MILL RACE ~ _ ~ ~
/~1P = ~ INV = 548.0 p ~ O
e _ t'~ P`' ~ ~ ' r'"'`~
~ BIO RETENTION #2 ~ 1'7 . ~ ~ ® ~ ~~0~ Site Name ~ Glencoe ~
® - ~ Lot size (acres) 0.17 ~ ~
~ o~ T N T I 0 N 2 Total Igpervious Area 0.17 ~ Draina e Area ~ 0.24
~ ~ ~ ~ ~ F ~ Peroentlmperuous 0.71 ~
,Q \ % Rv 0.69 _ W
~ ~l~ ~ Runo(fVolume Z
r/ Volume=3630'Rd'RdArea in acres ~ ~ . ~ /
4~ ~ Constant 3630
Rd 1 /j~ ~ / ~ Rv 0.69
y 0 Y ® ~ / / ~ Area in acres 0.24
® ~ /
STORMWATER MANAGEMENT PERMIT APPLICATION FORD ~ / Volume (ct) 599
401 CERTIFICATION APPLICATION FORM % i' \Z" " , ~ / ~ S urface area @ 9" depth 799
l ~\ppa~~r~ / ~ Area Proaded (sf} 879
BIORETENTION GLL SUPPLEMENT
This form must be filled out, printed and submitted.
li Part III must be rimed filled out and submitted aloe with ail of the re uired information. i3asin Elevations Lill REpuIaED ii The Required Items Check sf ( J p g q _ III. REQUIRED ITEMS CHECKLIST
dam ara _ _ P rypcoleleuahon ~ 555.15fmsl
h PROJECT INFORMATION =1ypEOfblCralanhOnCall(aaSWBr'Y°boolyoaaoltl:ehvo
_ Please indicate the Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
'Pro'ectname Glencoe Mill; Butlin ion, NC '~Ilovs questions: i J _ package will resu 9 package will result in a request for additional information, This will delay final review and approval of the project. Initial in o8~~~~09
Contactname Carl Simmons, PE Istlrisagrassetlcei? Y jVa~N) ;DK ~ ...w.,~ ~~~~.~.~~_....u.~~~~ th
Phone number 919.833-0830 Ishisacsllw>hhaoslshrubs. h (Yo:N) _ _ _ e _ ~..,._..~.mw.~....~__.~
IDate May 15, 2009Plantingalevatian(tapaft~emulchorgrasssodlayer) 554.4fmsl f._...~. _ ....._n~ _._b~.~.~ ..n_ . pag Pagel Plan
;Drainage area number BIORETENTION #2 ;Deptl~ofmulch 3ioehes OK Initials ' shy Initials 'Sheet No.
8o~mofho la • n6c madiasoil ~51.66fmsl P9 - _ _ _ _ _ 1.,Plans (1" • 50' or larger} ofthe entire site shotiNng.
Plank mediatle h P.15 IL DE51GN INFORMATION 9 P _ _ Design at ultimate build-out,
h racteristics ,Osptlrofwashedsandbelowplantingmetliasoil__.. Oft_ -Off site drainage (if applicable}, U
rStte C a _ ~....m _ m .m, _ _ . -Delineated drainage basins (include Rational C coefficient per basin),
~Draina a area 10,454 9 ~ ____~_.__..~_~~__.....w._m__ ...m.__....... _ . -Cell dimensions,
7 405 '~auotla:draiosba~ icsrallsd? Y YorN }Impervious area ftz 9 ~ _ _..._m m._..___ W.._ _ _ ',-Pretreaimentsystem, High flow byp 0
iPercentim ervious l 70.8°I° ~ P _
Desi n rainfall tle th 1.0 inch Howmaoycleanouipipesarebeinginsialled? ~ OK g p
. ~ ~ ~ ~ N' 9 I _ _ ~i Whatfacforofsafe mused~rsiljn tlreucbertlrams?See
'Peak Flow Calculations ! 2 OK m..... _ _ . . ~m_. e _ _ . BMP Manual Section 12,3,6 J
Is preipost control ofthe 1-yr, 24-hrpeak flow required? N (YorN) ~ _ _ _m.~__~_.._ _ .m__ Rtltliional dishnce b26~on to bo9om ofV~a plaotlag madia and: L
1- r 24-hrrunoffde th n ~ ~ 1ft f._..wY w.._~._~._w____P .~..~_...~~._~_w_....~.__.__~...__._ d>eho~mofihacall~accouafforuodsrdrains _ 2. Plan details (1 ° = 30' or larger) fDr the bioretention cell showing: ~ ~ _ ~ M
i1- r, 24-hr intensi inlhr Bo~mofhaoellre cored ~fmsl Y ~ _.....~...~mmm..__.__.~.~~_~~ ..~a .w. -Cell dimensions ~ ~ t.l.l
3 , Pre-development 1-yr, 24-hrpeak flow ftlsec - _ . _ . _ SHWieleua6on fmsl •Pretreatrnentsystem, J
Post-development 1-yr, 24-hrpeak flow ft3lsec ~ ~ ~ • High flow bypass system, -F~
' Distance 6om 6oflom M SHWi 550.65 it -0K ...m _ _ _ .._..._n~ . _ ._a. _ . _ _..m__ _ _ wm~ _ ~ _ _ PreiPost 1-yr, 24-hrpeak control ! ;ftlsec M aintenance access,
-Recorded drainage easementand public rightofway (ROW), ~ r ,
Stora a Volume: NomSA Waters 9 ~ M___ Numbarofbosspaaos - Design at ultimate build-out, ~ Z n
Minimum volume re uired 599.0 ft3 q ' Numberofshrubspenies . _
Volume provided 659.0 ft3 OK _ ..M.,.w.._.m.~ ~ . _ ~ _ Numbarofherbacaousgroundwuerspecies Q~
w,m_~~._..~~._~~,.M...~____.~~~~ww..~ ~ __~.m. ,___a___~.._ ..~_.m... W~
StorageVofume: SA Waters ~ . _ , .__.._~_m_.__..._... ....m_ , Adtlifionallnformafion
1.5"runoffvolume ft3 _ Ooesvolumemexcessafthedesignuolumebypasshe _ _ V 2 3..Section view ofthe bioretention cell (1"= 20' or larger) showing:
Pre __mm.... _ ~ . M.... _m...._.. w_ ~ m...._ _ ~ . -tlevelo ment 1- r, 24-hr runoff ft3 N (YorN) ~>icessuolumsmuslbypassoall. - p Y 'bbretentia~ cell? -Side slopes, 3:1 ar lower
;Post-tlevelo ment 1- r, 24-hr runoff $ _.,.~_,_._~p.,,.__....µ...~y.~mm. _,~.m~....~~., _.~...m, ~_.~..__~___.__.e_ ___~.~~_~.__....~_,.m..MM_~~ Doesvolumeioexcsssoft~atlesigouolumsflowsvealy • Untlerdrain system (ifapplicable),ond
.Minimum volume re uired 013 Y (YorN DK Q ~istib~atltltroughauegebkd611er? - Bioretention cell layers (ground level and slope, pre-treatrnent, pontling depth, mulch depth, fill
eVolume rovided ft3 Wh li t I n tlr ffheve ebfetlfil~~ .rv P aseego g 'media depth, wash
~W_.. ~ _ _
Cell Dimensions ____._..~_._mm.~ ._.___w_~~_.__._ ,~.~w~, DoestedesigauseaMvelsp:eade:~evac~Uishbu~9ow+? Y (Yo:N~ ~Submtaleuclspreadersupplemaof ~4. A soils re"ortthatis based u on an actual fie ~ ~ ~ p p Id investigation, soil borings, and infiltration tests. The N
Pontling depth ofwater 9 inches OK _..~.m . m . _ :results ofthe soils reportmustbe verified in the field by DWO, by completing & submitting the soils
~Pondin de th ofwater 0.75 ft i HhaBMPlooa~dal~as(30feat6omsu~cswafars(50feaftl , .,_..._g _..p_~..~.... ~ wq~~__ ~ _ . _ C t YorN) ;investigation requestform. Couniysoil map
Surface area ofthe top ofthe bioretention cell 879.0 ~ OK SRwa~~)
_ _ _ Hth__.___ 90 ft OK ~~oBMPlocalsdaf~asi100~alfromwateauPPryw2lis? Y (Yo:N) DK Length: ; REVISIONS
Wi 10 ft OKRCahavagafaMdsidaslop2saqualfoorlssstl~an3:1? Y (Yo:N) DK tlth
_._w.____;._.~.~~.u~__...~.~._.._..___._..~__...~...... ~ . _ ~ R i ft ~ HrhaSMPlocafedmaproposatldramaga2asamanl~h 08 11 09 PER NCDW COMMENTS
or ad us Y - (YorN OK _ _ _ _ ''accesstoapobecRighfofWay(RpV~? ' 5.A detailed planting plan (1"= 20' or larger} prepared by a qualified individual showing:
r_ _ _ .Media and Soils Summary ~ ~ _.~._._.M ~..._.___w_~.. ,~~..~.w__._ • A variety of suitable species,
a Drawdowntime,pontletlvolume 9hr OK hlafualociry(trombaa~onfsys~m) ~ssc _m.~ ~-Sizes, spacing and locations of plantings,
_~w~~~ _ _ ~ Drawdown time, to 24 inches below surface 33 hr OK • Total quantity of each type of plant specified,
M~ ..w___._. nn_ e_.~ m,. m..mmm~ _ --~Jstha area surrounding ha call likalyh untlargotlaualopmantio N M Drawdown time, total: 42;hr N (YorN DK - A planting tlehail,
_ . _ ; ;hefubre. __n . _ • The source n
°o In-srfu soih . w.,m. _ _ . _ ~ ~ _ ~ ~ N .r _ _ ~ ~ _ ~ `p{
Soil ermeabili ~ 1.OOinlhr OK ~ataslopasbrainingb~obiorslso6oncallgraaterhan20~ov N (YorN OK ~ p tY _ ~.._._.._~~m. m._.m~~__~_mm~.~ ._.m _ u_._.~.___.,.._~~,m ~ 6.An assurance thatthe installed system will meettlesign specifications upon initial operation once the V~ATER
o Planting media soil: _ { _ . _ 1Shedrama earoa srmanentl shbi6zeb? Y YorN OK _ ~ 9 P y protect is coin plete and the entire drainage area is stabilized.
m Soii ermeabili 1.00 inlhr OK ~ P _ 3 ~retrea6nenl Used QUALITY 7 A construction sequence that shows how the bioretention cell will be protected from sedim ent until the
rn _.$OIi COm 051tI0n . _ ~ mA . m...~ _ _~~_.I ~ e o (kdia~ type Usetlw4h an X Rothe shaded call) ...r~,~m. _.___...,..-.~.;..w. ~__~._....._.w,m.,.,._,~ . _ ~ ~~w~ , entire drainage area is stabilized. P N
~ i % Sand (by weight) 85% OK ' Graueland rass ~ g 4 8. The supporting calculations (including untlerdrain calculations, ifapplicabie).
l.. .,~~_~.._~~..~m. ~ ~ .m._~~.~ _ a N Fines b wei ht 10% OK f. K 1 Y 9 (Bmchasgravol~llowebby3.5tofgrass) e ~ _ _
~.~..~..~.___._...._....._~p~,___~_.m~~__._ ° ~ Or anic b weight) ~ 5 OK _ _ _ _ ~OK _ 9 A copy ofthe signed and notarized Inspection and maintenance (Ii;<M) agreement
9 (Y _ _ Grassedswa~ ~ o ~ Totahj 100°ro . Por26a _ . _ . ~ ~ ~ . . _ ~ . _ _ _ DWC~ NAME,:
_ ~ _ m V..___~m._..~..~, ._..~.~m____....~~~..~ .~__,.......~,m__,._.,._~ _ ~ - 10. A copy of the deed restriction. 61.F1JGUE UaK DlrxtEf
~ }Phos horus Intlez P-IndeX ofinedfa 10 (unitless) OK ~ - ~ . _~..W....___._.~ ~ Otliar .w_. .
w NOTE: DRAWN:
O U PDI1
Z W J ALL CONSTRUCTION TO BE IN ACCORDANCE Gt1ELKED:
(7 i ~1 WITH CITY OF BURLINGTON, NCDOT AND NCDWQ GM5
3 STANDARDS AND SPECIFICATIONS. REVIEWEi7:
w O GMs
U Z
N.C. UNDERGROUND UTILITIES DATE:
J MAY I2, 2009
O O 3 DAYS BEFORE DIGGING CALL
O N TOLL FREE 1800-632-4949 SCALE: 1 "=20'
N U A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY 4 of
N O L
a v
c
J
U

c0 N
~ i /
~ ® S,\ ~ G ~ _ _ - ~ rn
~ ~ 5 ~ ~ ~ t.O ~
~J ~ _ _
/
; ~ - . ~ P
,550; p Pc, ~i ~ .P~~ o P ~,P rn
~ ~
12 .HDPE
~ i' ISCHARGE ~ _ ~
R> ~IRECTLY TO Q ~ ~ o / MILL RACE
~ , ~ INV = 547.5 ,r' ( ~ ~ ~
BIO RETENTION #1 ' ^ ~
~ I Site Name Glencoe ~ Lot size (acres) 020 ~
/ Total ImpeMous Area 0.20 ~
~ / Drainage Area 023 v ~ Percent Impenrious 0.67
/ / / Rv 0.83 W
® '~,r ~ Z Runoff Volume
Volume=3630`Rd'RVArea in acres =
/ ~ / Constant 3630 d
Rd t
Rv 0.83 / / Area in acres 0.23
w~rF~ 0~ QG
/ / / Volume (cfJ 695 / Surface area @ 9" depth 927
M~,~~~ ~
-c / Area Provided (sff 1024
STORMWATER MANAGEMENT PERMITAPPLICATIONFORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
III. REQUIRED ITEMS CHECKLIST
BasieEleuafioos ' III. REQUIR This form must be filled ou#, printed and submitted.
iemporarypooleleua6oe 552.25Mrsl The Required Items Checkbst (Part III) must be panted, filled out and submitted along wdh aN of the required mformatron. _ _ oS/Ik/Q9
ypeafbbreteodoecell~aoswer"Y°rooolyoosof~aMo Please indict Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
follower ues6oos; I, PROJECT INFORMATION ,___99 ) package wil package will result in a request for additional information. This will delay final review and approval of the project. Initial in
Proiectname Gien~oe hell, Burling?on, NC k~isagrassedcel. Y (YofNl 0K ~ th
~ . ~~..M......~.~.~_w....,......~~_. .m...~ ~Contactname Carl Simmons, PE ktlrisacell~tlrbeasfshmbs? h' JYofN)
_.,,_.w~w~ ~ _
Phone number 919-833-0830 Plantlogeleua6ooJbpoftlremulchofgrasssodlayar) 55t:5ho~ Paget Plan ~
'pate Ma 15 2009 Deihofmulch ~ 3inches OK Y P _ w . _ _ _ _ ~ ~ _ _ Initials Initials Sheet No. ' _..t ~ _ .
Drainage area number BIORETENTION #1 'Botomofiheplauhogmediasoil 54675Mr~ ' _ _W ~ _ _ _ 2 ~ 1 rPlans (1" - 50' or larger) ofthe entire site sho~ng:
' Plaolo med~sde dr 2,15t 9 p - Design atultimate build•out,
_ , II. DESIGN INFORMATION Dep~ofwashadsaodbelowplaolugmediasoil 6t -Off site drainage (if applicable), ^
'Sr a Characteristics ~ m.._, _ t - ? -Delineated drainage basins (include Rational C coetficientper basin), ~
_ ..~_..A _ _ Q, _ , -Cell dimensions,
Draina a area 10,219 g J g f~ Rreuodefdraiesbeia ioshl~d? Y ,YorN w~~ ~ _ m_ .__~_..M~.~ -Pretreatrnentsystem,
Im ervious area 8,734 P -,._.m.....~..~.~~~.~._w. ...__~m _ ~ _ -High flaw byp ~ ~
'Percentim ervious i 85.5°l0 ~°la _ _ Howmsnycleanoufpipesarebemgiesfalled? 4 OK p ..____..______._...w______________._________ rr_ ~ ,M~ L
X1.0 inch.~_.._ Design rainfall depth _ _ _ _ WhalfaeMrofsafe isusedforsoiu bleuederdraies? See r-
. . . w_ _ H 9 I w__... ~ ! BMPMaoualSeetioo12,3.6) ' ~ MM~
Peak flow Calculations w_ _ W
'Is rel ostcontroloffihe 1- r 24-hr eak flow re uiretl? N (YorN i Rdditiooaltlis9ecebefweeotlrebolMmoftleplaologmediaand p p Y ~ P q _ ~ 1;t ~ ~m ~.~.......m_M_wm._ _ r _ '1- r 24-hrrunoffde th in I tlrebo~moflrecellbaccouol~rucdeftlfams a-+ ~W ^
Y, ~ _.~m _ ~w.~_ inlh r ~ _ _ ~ .w..W_ ,Bolom of the cell requited 591,151tuN _ 3 ® 2 ;Plan details (1" = 30' or larger) for the bioretentbn cell showing: -Cell dimensions
.............mm.... _~~___~.a.~ , 1-yr, 24-hr intensify _m._ ~ ~ ~_......~_~w _ _.~_____W__ a__...____.~ _ 'SNWielava6ou ko~ j-Pretreatmentsysthm, ~ ~ „ r
i 24-hr eak flow a Pre-development 1-yr, p ft Isec -High flow bypass system, ~ z
...m ..n~w._ _ _ . . ___.2.. _ . ~ _ 3 _ _ _ _ . _ _ ~ Dislaoce hom boom b SHWi 54115 t OK .Post-development 1-yr, 24-hr peak flow ft Isec ' Maintenance access,
_ _.,._m~..__ ~ ..._._.,.,...,..._,.....,...~....._.__w.__....._._.~~..~.......mm_~___ - i-Recorded drainage easementand public right ofway (ROW),
'PrelPost 1- r, 24-hr eak control iff3lsec ! ;Plaotio Plao Y p ~ g _ _ ~w_ _.,~~.~.~.._,_....._...,._..._,._..__..___~~~,..m~..___ __m_. ~m~~ _ -Design atultimafebuild-out, ~ 0
Stora a Volume: NomSA Waters ~ ~ Numherofbeospacies ..m~~_~m~__e~.~..~.~._w__.m.~ i_~~ ._~~w~ . . , _ _m _e.~_
'Minimum volume re uiretl ~ 695.0 3 Numberofshfubspecies _ ~ ~ m _w ~ _ , ~
~_._~,..~m~~.. ~~-..q.....~,,.~~......~ _.~.w_...~.~,.__~..,,mm.,,.,__._ _ _m_.-. . 768.0 a OK i , Numberofherbaceous rouodcouers ecies .t.. Volume provided ft 9 P Q
. _ ~.r._ . . _ _
'Stora a Volume; SA Waters 1 AddiVooallwformafioo 9 n _ , 3 w _ ~ . _
1,5 runoffvolume it ~ Doesuolumeioexcessofthedesigouolumebypasstlre ~mm~ - _.__._._.~~..~.m..mme_ _ . N (YorN) Excessuolumemosfbypasscell _ 2 3. Section view of the bioretention cell (1" = 20' or larger) showing:
s ,;blefE~CilorlCBll? Pre-development 1-yr, 24-hr runoff ft ~ _,m . ~ . . ~ , . _.3_ _ ~ __...,...,._..__m M . e.. ~ . _ -Side slopes, 3.1 or lower
'Post-tlevelo menfl- r 24-hr runoff ',DoesuolumaioeKeessofdredesinuolumefloweuool - Underdrain system (if applicable), and
-nip. y' ...._.~M_._~___ ~ _ ,.____~..___~.mm~~~_._~.~ 9 Y Y YorN OK 3 ~ J' Minimum volume required OFD 'disrlibutedfhroughauegeb~d6lter? - BioretenGon cell layers [ground level and slope, pre-treafinent, ponding depth, mulch depth, fill N
. . e..__.,_ ,_____..~~...~..w~ media depth, wash
'Volume rovided ft3 Whalistlreleogltoftleuegebtedllt°r? t p . _~_._,~„~~~._w., ~ ~ ~ ~ ~ ~ .
Cell Dimensions t ~ Y r mifalau I fe d r I _ ____~______.w___. __uw.~. Doeslredeslgcusealevelspreade~toeuerllytlistr~buleflo (Yo N) ,Sub a sp a e suppemeot _ 4. A soils reportthatis based upon an actual field investigation, soil borings, and infiltration tests. The REVISIONS
'Pondin de th ofwater 9 inches OK _ ' g p . _ _ _ resulfs ofthe sails reportmustbe verified in the field by DWQ, by completing & submitting the soils
Pontlin de ih ofwater 0.75ift NtlieBMPlocatedaileasf36feetf<omsurfacewakfs~50teefif investigation request form. Couniysoilmap 08 11 09 PER NCDW
_ _ ~A. _.n,~ ~..w __w.___-,~-__... YorN) 'Surface area of the to of the bioreten6on cell 1,024.0 ~ OK SRwalets)~ _ COMMENTS
P _ _ ..........................~m._M _ _m_ _ `fsheBMPlo~ledaileas11g0~eff<omruafefsupplywells? V YorN) :OK
a Length; 49 ft OK _ _ ~ orN OK
Witlth,~~_. ._.___...._w..___~__ 27ft OK ~ Rfetheuegela~dsideslopesequalfoorles,tl~ao31~ ? (`I 1 _ _ ~ ~ ~ __m~ ~ ~__~...~~._.w.._._____
N -or-Radius ft NheBMPlocatedinaproposaddraioageeasemeofu3li u M m_.m. M_ . ~ -._,.~m _ _ (YorN) 0K _ _ _ _ 3 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: '
~ _ .~~_~~~._~~..__...~._~w.~,.._~_~ ~ ~ . _ ._~:~~_...~.w:~ ._.___..~~M~.__._ W_~: accesstoapublicRighlofWay~ROW)? Y M~~ _m_m _ ~ _N~ . _ o :Media and Soiis Summar - A variety of suifable species,
~ . ~ ._~.,~.__.,w.. _ . _a.~ _w. m..,, ~ _ , -Sizes, spacing and locations of plantings,
Drawdown time, ponded volume 9hr OK hlefuelociry~f<ombaahoaolsys~m) ibsac ; r . m .___..._.mm . _ . _ . _ _ _ -Total quantify of each lype of plant specified, WATE R
Drawdown time, to 24 inches belowsurface 33.hr OK w ~.~_...~_~M.,_,„ _..,M....... ~.~mm w~ m...._.___.._.....-.._....~._~..__~w__ k~eareasurrouutlin Ilecelllikel Iourltlef odeueb meolio~ ( - A planting detail,
~ 42 hr 9 y 9 P orN OK 3 Drawdown time, total ~ ) ;fie Nfute? I QUALITY ( -The source n
1n-situ soih , ~..m._ ~__.__w_. . ._...._m ~ ~ o PLAN
~ Soil ermeabiliiy 1.00 inlhr OK Rrelfeslopesdraioirlgbllebiore~nloocellgreaiertlrao20°I°? h' ~YorNJ 'OK ~ P _ ' _ 6. An assurance that the installed system will meet design specifications upon initial operation once the _ ' ; projectis complete and the entire drainage area is stabilized.
_ ~ _ ___~n _ _ _ _ ~ _ _ _ m. _m.. _ ; _ _ _ ,._.m _~._mm. N Planfmg me ra sor: ,....sue- rN OK
~ ~ ._a_~__.~.__..,.,,_~ Klredraioageareapermaoeolys~bilized2 Y (Yo J w Soil permeabihly 1.00 Inlhr OK _
o .__...M.M,..~,.,_...__....~_ __~~_._.w_..._.~~ ~ ~ _ PteteabnenfUsetl - _ 7. A construction sequence That shows how the bioretention cell will be protected from sediment until the
m Soil com position ~ ~~...........m.......__~.____~ ~ , _ _ _ ~hdisaM Type tJsedwtlr ae N° in ~e shaded cell) ~ entire drainage area Is stabilized. DWC~ NAME: ~ _ . ~ ~ _ _ ~,oe Uwts
~ %Sand b wei ht 85% OK (Y 9) ~ _ ob.... ~ _ . . _ o . _ . . ~ , Grauelaodgrass _ 8 The supporting calculations (including underdrain calculations, if applicable).
W /o Fines (by weight) 10 /o OK X DRAWN:
o _.._.,o...._ o _ ~8mchesgrauelfolow2dby35dofgfass) v /o Organic (by weight) 5 /o OK z o ~ Grassedswala OK _ _ 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement ~ ~~h
y Tofal.f 100% l _ Gt1EGKED:
w.._~_~.m . . ~ ~ ~ _ _ Porebay m Phosphorus Index (P-Index) of media 10 (unifless) WOK 10. A copy of the deed restriction. GMS i
~ m m.~__ _e~~.. _ . Olret ~~...m___._ _ 1. REVIEWF_D:
W
0 U Z NOTE: GMs N.C. UNDERGROUND UTILITIES Qi I nnr\I~TRI IrTln~l Tn R~ ICI nnnnRno~lrl= DATE:
J ~L vv r.? i vv vi v v ii v r wvv vvr a vv~ IYII'1Y IZr LG/~
O 3 DAYS BEFORE DIGGING CALL WITH CITY OF BURLINGTON, NCDOT AND NCDWQ 'Vlri 4 W
O N TOLL FREE 1800-632-4949 STANDARDS AND SPECIFICATIONS. SCALE: 1"=20'
N t U ~vLL~ A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY 3 of
N O
i a
v c
U