NC0084212_Renewal Application_20190225

Igg'SwrE�
ROY COOPER r V`- ga
Governor r Yr I y
MICHAEL S.REGAN alt:4
Secretary 4.,,R'.:::6-
-rs •
LINDA CULPEPPER NORTH CAROLINA
Director Environmental Quality
February 26, 2019
Johnny Lambert
Davie County
298 E. Depot St., Suite 200
Mocksville, NC 27028
Subject: Permit Renewal
Application No. NC0084212
Sparks Road WTP
Davie County
Dear Applicant:
The Water Quality Permitting Section acknowledges the February 25, 2019 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit.The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely
....26,
ir itj
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
DEA. North Ca roiina Dapartm=nt of EnIvironmanta1 QuaLty I Divis»n of fate;Resauroes
, :lrsstoern RagrtaOffica 45D 1S' t Han R'a l fios5uta34D 11'�inston: am,North Cerotre 27105
..., .3.3'O 77C aBDd}

Davie County Public Utilities
-,..,,,.:-.''':;)-'-'‘'''IViirS, -(-0.47 -i-VtiOly.: . =‘,1
336.753.6090 4'0
�!" ����
F
IV s-iii,
N.C. Department of Environmental and Natural Resources `">i; ;Q� 1®is �/Q
Division of Water Quality/NPDES Unit ��9s 4PO
1617 Mail Service Center ec.;�0
Raleigh, NC 27699-1617
Renewal of NPDES Permit NC0084212
Sparks Road WATP Waste Water Discharge
To Whom It May Concern
Please renew the above referenced NPDES permit for the Davie County Sparks Road WTP
wastewater discharge. No changes have been made to the facility process.Included in the attached
are the following;
1. Cover letter
2. Application short for C
3. Sludge Management Narrative
4. Facility Location Exhibit
5. Facility Process Schematic
Sin ely
hnny Lam ert
Director of Public Utilities
9,111,14
gal.% ,
�p � 298 E. Depot St, Suite 200 I Mocksville,NC 27028 I www.DavieCountyNC.gov El n

` NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water.Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number NC0084212
If you are completing this form in computer use the TAB key or the up — down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise,please print or type.
1. Contact Information:
Owner Name Davie County Public Utilities
Facility Name Sparks Road Water Treatment Plant
Mailing Address 298 E. Depot Street Suite 200
City Mocksville
State / Zip Code NC 27028
Telephone Number [phone]
Fax Number [phone]
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 728 Sparks Road
City Mocksville
State / Zip Code NC 27028
County Davie
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Davie County Public Utilities
Mailing Address 298 E. Depot Street Suite 200
City Mocksville
State / Zip Code NC 27028
Telephone Number [phone]
Fax Number (336-751-5855)
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public El
Page 1 of 3 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
5. Type of treatment plant:
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
❑ Ion Exchange (Sodium Cycle Cationic ion exchange)
❑ Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (i.e. groundwater, surface water)
Yadkin River Surface Water
7. Describe the treatment process (es) for the raw water:
Presedimentation, coagulation (Ferric Sulfate), Clarification, Filtration, Disinfection (chlorine gas)
and Discharge to a clear well before inter public water system.
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
The wastewaters are clarifier and filter backwash conveyed to two treatments lagoons'of 785,000
gallons each which are decanted through dechlorination (sodium sulfite tablets) and flow
measurement to ditch tributary to the Yadkin River.
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ® Intermittent ❑
If intermittent:
Days per week discharge occurs: Duration:
•
11. Plant design potable flowrate 3 MGD
Backwash or reject flow .264 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Unnamed tributary to Yadkin River, attached is the exhibit.
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Alum / aluminum sulfate Yes No X
Page 2 of 3 Version 5/2012

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Iron sulfate / ferrous sulfate Yes X No
Fluoride Yes X No
Ammonia nitrogen/ Chioramines Yes No X
Zinc-orthophosphate or sweetwater CP1236 Yes X No
List any other additives below:
Active Carbon
Sodium Sulfite for wastewater dechlorination
14. Is this facility located on Indian country? (check one)
Yes ❑ No El
15. Additional Information:
> Provide a schematic of flow through the facility,include flow volumes at all points in
the water treatment process. The plan should show the point[s] of addition for
chemicals and all discharges routed to an outfall[including stormwater].
D Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-I5:
• New applicants are highly encouraged to contact a permit coordinator with the
NCDENR Customer Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
D Analyses of source water collected
> Engineering Alternative Analysis
n Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true,complete,and accurate.
L,a4,3:>e01- çCC?creA-' a� Q� ,\i'c C��:
Printe ame of Pers Signing
/ 2 - 26 - 7
Si to A 'cant Date
North Carolina General Statute 143-215.6(bX2)provides that:Any person who knowingly makes any false statement representation,or certification in any appticalon,
record,report,plan,or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission knplementing that
Article,or who falsifies,tampers with,or knowingly renders Inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21
or regulations of the Environmental Management Commission Implementing that Article,shall be guilty of a misdemeanor punishable by a fine not to exceed$25,000,or by
Imprisonment not to exceed six months,or by both. (18 U,S.C.Section 1001 provides a punishment by a fine of not more than$25,000 or imprisonment not more than 5
years,or both,for a simbar offense.)
Page 3 of 3 Version 5/2012

,
Davie County Public Utilities
Sparks Road Water Treatment Plant
Sludge Handling Plan
The Sparks Road WTP has two parallel 785,O00-gallon filter
backwash lagoons. The lagoons provide longterm storage of sludge
developed during clarifier flushing and filter backwash operations. As
sludge is added to the lagoons the chemical solids are settled by gravity.
The supernatant is discharged through the overflow-supernatant pipe to a
man made ditch that flows to an unnamed tributary of the Yadkin River.
Sludge depth is monitored in each lagoon and lagoons are designed to
last up to 10 years at the expected plant sludge disposal rate before solids
have to be removed. Once lagoons are classified as full, sludge in the
lagoons is dredged and land applied on neighboring farm fields. Prior to
dredging a land application permit is acquired and the sludge is analyzed to
assure it is safe to apply. The sludge removal is contracted out to a
specialized private company to assure that all state and federal laws would
be followed though out the sludge removal process.
In sununary the sludge handling at this facility happens only once
ever 10 years and is contracted out for land application.

.
_ �_ �_".,.�"„�_. r , _ m , _,.�.. � _ PermitNC0084212W
_...
. , _ •
•
•
..
, r ""'iw. f 1^ A',`,19.4" /; v T,. ..4, r. tY,^ , ,`-u 7, ,, - d R' _ -
•lr� .7s_1 .]yz /� (� 7 � �.L1 '`i �., `�I���,,( '� •
`�: .,q:7y` sa: °t" �y��yp 4 f'
;t1, t�` }r"'Li-1 S014r' tr<t,4' -' y 4 41 ../., d ---' _Y. J x .,, k ` P :R�'il
x: aa ,�ir:-!; �Y,. .w y{,� #` ,ray, Z,', �" �e .-t.f�y,, '1...r -•• -Jo-_ 1" ks:_ -1---,,� `� .{:
/,
1 i +�,a '11,r5t'L!n ,At.1* `G: 7't •1.ea ^z 2 s.., .�'-•AcR., "_`.".,,, / {f+ft,- '�-/Fla�.S��tt�'N3 i�' �x,;yr - Y�z..:,-�,+ t`�s G'j.`-F.;'i:�;h.i" *'^ •�-•-, V ; "° 4'j lW
..,q,......;.v. . • -s, ,-..,..• •, . ,.'
kL,,.,—A,--.,.-.--7 4--
,4.1-,,
I,-,,4
,kA,-'--,9-..,,,,-,4...:•.....,..•:,,t,-.-,m,.•.•,.•
\,-1....,
•.)_-_,.---_h••-
,':-.i),.'...*R4..„•,,,•4_
.'.,--•„0
.„..,-„...,_,..•,.,s'4..,.,)1.-si-,Ai-A.,,-,-,'.:g'
N ,Ik' "v -Y. .{ l u:.._ '.,' tr - "'� fit . xt>.rSgr:�',...,,,.,, .' -,1 q v' °.-/ .Y""••,;r,;.-_,.,t/,4,t,.=-,>,.'„i_'.-.2.„..,•c:,0'--:,i 7.',,•.\'.-.a 1':r A-1,-,„1t.-.-.:.,.4...,-,,;....-'3 1.„i.,'';„1, ';3ry b Y' \ti_.i.0,.',._,0...,T,t,4,2,,isur,5..\. '-
,._..,.,,;0,'..4..--.,-'.,:-,-__t•7.‘.',:,A.1,,,,„,.'.e.--;,-
-„e”••"s..„N..,..rA;
T 1-,,.,.,
• t,I r .1"•.s. '.'..1 - ,�,fix' ,l '•..•. v ••� ,f.•^jir ::r`.` ,1�,. '-'-.+)i•h+!'•,/'r>`t,•!1¢ '.�•_;'�'1'yra
df,1„,-.„,,.-,,,,'.'_
,%,,,,,,
\,,%,-.;,,,,s%..,o,.,,,--,i1,•i,f--l',,'-.
,,.-,.,..
._',4'',.v,'.,.-q-.'T".,i.E_.
-4i:A,-e•44.1,i':„.
_*4„,.t;-d':,-zp.t.:„e§.
.,,--'2,..‘,,/,A.iz-.
,.„v.'-,..,..,
it-*1,i',,,.4.,„.0.i475
jr�!,` y tj 1 9w -ly.rr. rsYah :4 z,. !(r�.0]j1S f�"wry.
1,2„,,,),.,.t,,
h Y.-. • .,.."yr'4 -- .B "? :l A i. '✓ '_•¢ym• ,'`,mot. r• ��',5'2
fs{ yW x ;n �� G, _i� y/ J %' dr. :' \ 7f,, '�[ ;t,@
(+S ; ""',- i ,: .c ,-,.. , :, ,...'�'' ;dWd
,y' r '.' i , r,tiY'. nS_ ,'�,��.a�•
- � kA - -,
�.,,.�•.� "4i zlnj',,•y'._`. Y s 'CY �ei"'i�b1 r%� . ��t�i4r'� f�1ye t� Y�
'4 ```Ot " ,✓ ,.:#a,r,,t f•.=•, ;1-`x;S ' Ni, • `;„V A r' i 1„"i {
! ^C+ w 3 5„'gy 1 ' ' n �f ;,� ,'.r�i�lb ' V 'cy „ z Q 1 i!7Nx
_._ -,, -:,- •--•:„._-.. • + •x-sq.„..„_;, 4 - g,-; ,...),..- *14-Wl& Af'' '''-'37i):,)37:1L' Ill r 1 ViVe
�b
ibl-
Ait
_�;r='ryz'�,�"Sa`r^.` �y�-? �`5•�it.� 3 Y t' �..d �`�^•�.+'•�` 1�', �/ i4kNt� v '� mf [�t�ss
¢,,V.,71<- ,' -I s i k Nt t? I.ii. /'..:/ 1ta7• ,, _ . --'"•-- 4`r f x. �Vy,
dr.;.. ,• to �- si.S�h4 �� � .:t�z'F '1'+i4k" �f'�,ui-"`'`�4-'a i _ ;1"� Er'rq'� 1. eis---At
% =+�
tt{t0. r •.-_ ••> . `'1 ''.'#" t r' xr[�� It ' a:,4 Y Fi
�r r3 ' 'C$' :ice., 77 n+}'. F_. -r, y wh 4')• *,. 1'. !X \+5q:.
- 1~'_P 'rtu .i -,.�, y`1v=f1 -r{ 7 a. 7p_-i• u- � �t7 t�-,+
�/ _. f, r,(II �'� :u:�r'i", VA.,'�'�.• `>t`,��.1; .Y �r"a.,< f1� ��:' F �� fil
1
' ii ; maylrh•,k ;�7 - t! 'C - µ �,r _..,._, .... 1� 4 �'�Y\� c iv ;_,,,,,‘,,,,,;if:,,,,,,,,.!-..
..:•
.yd'•r,`::' .4 21Y X' ! 3. 1 \,•,,,,,,,,,,..„,.*� r ... ^c.'c'yc3-^•l7-- , sA
-c- ; �4 � A., p^▪ tl,=7. :...-• *1, •__ •_ t hi�t4''� t es 1 t--;' ,- �'�S /�'K''�.,,\U•l r•t ' - -:;
_ T`rLu'ff�.,�3t,k 7T I•
/i :*44y Y f' - t er a 1. °3 ' � "cm;n F ,._ s'''rY, .++k'', ` ,,.• .
'apt ,`.I fl. ;..'lg � • - ', 3-' r• . 1 0, rs ,.ic +r + tS '- ---P'+}C7 S,r'� 3t eb;;;DIS`.1�a
` ;' - "�" 'c,' §• .S !p }:Y: .1 • ,//i °. s� -? ,�y(Mj 7 rAt - • w .'i ", ig ;1P, `r. ft`-tF4 7 J74-4;f'",\1' , .( . Sk �✓l �1,,��'.� �tf _vT • ,, �'7' ,l( O f'-,.. � f.1.L Z1 t
L.
•
4 3CA ) 4 f 1. •V. - ,Ill f Y t' r'+,"r' " 3„. • ' ,,1 • r� tt 0, '$,6 bY/'- Fa
' , ▪ ,r's'... !jf �_44441 A so A ,. t"N.LA. y ,z-„....: Ps r, J.t` °f\: S t• ..•. r
/ } z J
•
•
4.
L> �4 - � • : Y tlirr'_ _ /-$. 1l,,TTx, e�.•4.0+c`�s�-�',''1 /-'.. �z'•*. .• "i• "-•`r�.- ,+ :' .. s ! t'''{�i
•
"�.,• - j4_' ,ys'' );� . -r Yid••-sg-ipt,,.;Ct'?w ' .�.s-'- -1, ('' �"-' • ' - _ Ail , ,' . a.. 1;..k ,2�`
lV:'' n'.g/,r. I.� . b�+� *. n q z' >: 4:Rw%"`...` i ti _ �''° t- , 1! '�i'1.,3�� e \ ,-.
Z-s.. l�°� '�tqy��.. ,rift _ €.��}'_. 5 firs' � S;� �,
'4 '•',yL•y�,.•.-'^W a .. '�w L%" _�J7 t.,i„ i•',• t`� t ,s '4+x -�,,I, g- V - .'/;�
t E [� .--, ^,,,,,,z .: is i ft>•,t.i.,Vv -.,.w•w 7`r+:i. •C4r''15;. '. Is -tir-• ' 't ''\ , -
r t..1,.`_ '11.' 1 'a11v 37 1 1,'‘.'
s ''.• ,', - - - 11.
1 . ) j�.n-i- ,%I •c,i_ 3.t1 {,A •c 9 "_;,:jia; �� 4;`� �;.�' '4 1 y :}K¢�Jr'�t'y7 ':•��'.C�S1 '�*Y `,r•,3t o f ll J.':.r ' �i,- . (F ify '-'' i., �°, f 1'.F_ •r' r' '_a ,11rs� t7iki r,• ..i„%:: p � e*-- _�'1 I-l�•1Stx '� S ' a ��'"''+ti'r.��� '� ♦ Ear.11�'/ '�'�- J :,' �� � �r, ` •y, _
-)L.' ' � til i ', I,-, ` 1i .. .a 411 ate:ti:.;''a�,.' _ r 5•l�.,a. „`'.. -,.
- ,`{--ttV'����`( :' Y C,:gFy-- 1 ,� i.F -:, c I r, - a+7. 1; 1',x i • :i4 ._`'f �"''�,'•'.-�+„. ,..pl
- _ ._�„ �,.^-I'`r� �; r �'." .i-,;,, n _�_y'�,m-._!` % -,?.,^ 0 ,,- •�' .-', tr „r fig•- •".sN ,iz..-
t.J ft7
• i`It Vs' w 4-0.- ,. 'i x t•75,=1 0:.- !_•- :'" J, f f r J ',
l 4 •tt h 4 t...._-- at '. 1: ti---' mI i i :1 _ , -4
} ,t,-,may-:4 _4 , 1, r_ -_ +, t•^.'• .. ..--,-,•,'.:,,.„
.u,• • ..o0(-)11"i'1;. r ' S si :'z,l ,it, F 1 ,ti,,.+' `.
-,o-`,..,,.,.k:°E 9 ...4',,,I :. dyi2• -,:th f,,t•`i. h-• fi t:1� .rza ', t(; 7s" r: z.
Latitude:36"01'58" +
' •• Longitude:8056 00" N C0 0 8 4 212 • Facility
Fi ,
•
.. .
Quaff CI6SL&,'CI7SW tt
Receiving Stream.UT�'adkin,ltiverOCatYOY] "
County of Davie •
„• ... .
Stream Class:W4-1V •_ ^..,
Subbasia:30702. Sparks Road WTP •INert/i • SCALE 1 :24000

•
TERMINAL
RESERVOIR
•
INFLUENT FROM
YADKIN RIVER
> 15 MG CHEMICAL
• � ADDITION FLOW
•
SODIUM
SULFITE MEASUREMENT
EFFLUENT
TRIBUTARY TO
YADKIN RIVER
CHEMICAL ADDITION WASTEWATER
LAGOONS
PRE—CAUSTIC CARBON 785,000 GALS
FERRIC SULFATE, CAUSTIC EACH
' I
NEPTUNE-TRIDENT
CLARIFIER-FILTERS - - -�- - --�
SLUDGE
CHEMICAL ADDITION I TO LAND
CHLORINE, CAUSTIC, I APPLICATION
PHOSPHATE, FLUORIDE
DISTRIBUTION SYSTEM � FINISHED
- -. -- „ < WATER LEGEND
16 I LT CLEARWELL
EFFLUENT
1 MG — — — FINISHED WATER
HIGH SERVICE INFLUENT
PUMPS •-•— SLUDGE
- •- WASTING/SCUM
WTP—SPARKS14 FLYII
GREY ENGINEERING, INC. DAVIE
Civil Design and SurveyingTY
P.O. Box 9 Mocksville, N.C. 27028
greyengineering.com [phone] SPARKS WTP PROCESS SCHEMATIC EXHIBIT
DRAWN BY: G. BULLARD PROJ. NO.; 202.029.GE 30 MGD CAPACITY q
.
DESIGN BY: 0. BULLARD DATE: 4/09/14 OF 1 I