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HomeMy WebLinkAboutNC0063096_Wasteload Allocation_19840508NPDES DOCUMENT :;CANNING COVER SHEET NPDES Permit: NC0063096 Holly Springs WWTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change Meeting Notes Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: May 8, 1984 This document is printed on reuse paper - ignore any content on the ',maw -ex -sae wide Office to Com CCI ,0 0 4.0 a) MINIM 0 c, 0 1) CD a - CA Facility Name: Existing Proposed a Fact_OV,f- &Lai NAL molded LYS &i L o , NPDES WASTE LOAD ALLOCATION 11C)LL' �'1'z Permit No.: #4 Design Capacity (MGD) : .2.6 NUCD Industrial (% of Receiving Stream: i)T Lit 2 24-am G( Reference USGS Quad: (Please attach) Pipe No.: County: Date: ` 811' \Wa a Flow) : Domestic (%-of Flow) : _ 100 64 Class: Sub -Basin: 0 3O (o O % Requestor: Rd:um & Sawy.0 (Guideline limitations, if applicable, are to be listed on the back of this form.) Regional Office RaAejek Design Temp.: 7Q10• Drainage Area: Winter 7Q10: Location of D.O.minimum (miles below outfall): Velocity (fps): Kl (base e, per day, 20°C) : ., 2 v»' Avg. S treamf low : G"k 30Q2: Slope :. (o 9 -Cevh K2 (base e, per day, 20°C) : 1 b ' 41 Effluent Characteristics Monthly Average "1lt( I Aotsaise Comments $0b5- 1 g 025' iPA (.Q 1\)%i31 6 t o 0 Do 6 ni 0 _ "ISs 30 30 a , . .-lee C.c ' /000 /000 Ifoo v'tQ 0* 6-86- 4.--S'5- 5u Original Allocation Revised Allocation Prepared By: Effluent `Characteristics Monthly Average Continents 4 Date(s) of Revision(s) (Please attach previous allocation) Reviewed By: Date • e s. e'{ tft �r �` /, --: ram:=• • 7 • i� •`a ShivIba a? Air�,ort /• • i- /'. • 693 2 040 000 . E <' '94 sped, edited, and published by the Geological Survey of oy USGS. NOSI NOAA. and North Carolina Geodetic Survey graohy by photogrammetric methods from eer, ^t' tC2raohc 695 2! t\•. Qt• o- •• MN cti -196 • Ad* S • • 447 • 3931" • =Radto T : 139;) 557 Cern a.•,..z va :00G 0 442 cez gx0a),Ae`CWlL REQUEST NO. : 797 (.) *******' ************* WASTEI_.OAD ALLOCATION APPROVltI.. FORM ********************* --- 14) FACILITY NAME ; HOLLY SPRINGS --SITE 1 4t 131984 TYPE OF WASTE DOMESTIC COUNTY ; WAKEf_I�`;':� OFFICE REGIONAL OFFICE RAL..EIGH REQUESTOR ; HAZEN & SAWYER RECEIVING STREAM ; IJT LITTLE BRANCH SIJBDASIN ; 030607 7010 : 0.0 CFS W7010 ; 0.0 CFS 3002 : 0.0 CFS DRAINAGE AREA • • ,_ S0.MI, STREAM CLASS :C ************************ RECOMMENDED EFFLUENT LIMITS ** :*************** :***** SiAJY1 i'lF'\ WASTEFLOW(S) (Mori) : .25 .25 DOD-5 (MG/L) : 18 25 NH3—N (MG/L) : 6 10 D.O. (MG/L) : 6 6 PH (31)) . 6-8.5 6-8.5 FECAL COLIFORM (/100ML); 1000 1000 TSS (MG/I...) ; 30 30 THESE LIMITS ALSO APPLY TO WASTEFI..OWS OF 0.3 AND 0.4 MGID. E! VEP 1984 N Er. ' .c:��T'ON **********************************************************::'�c***** . ******:**** FACILITY IS : PROPOSED ('�) EXISTING ( ) NEW ( ) LIMITS ARE : REVISION ( ) CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUED REVIEWED AND RECOMMENDED BY; f ; ,] v � 1 s _._ _DATE 2 _ '17/ Z 'sky MODELER _ _ .._ _ ._. SUF'F..fiVISORsMODF..L..ING GROUP ..../ � ._ _..._...._...... ._.._LATE.. .._........_...,_.__ M REGIONAL SUPERVISOR ;_.. _� L�-......: __DATE ; `f_- PERMITS MANAGER....•... _......._._._DATE ;...S .1, — 1'64(1 ‘ert tt2. 1 4+ Z ETC 3/4 (2/t t• (' e cleo 0 Qs - or o eh � 2 r v". = 320 55 = 0 Atsf� 01A,- �4, 11 . K kerb alto WtI) - 0,0 c.-t tvZ E„s(ope - x 3*0 /too 310 goo 3no 65o moo �$v I(,ao 27 o zoo() j000 sty.. LI4 4r 7 7% ,7‘; WOD t+e— i•} vv% 36 -4fttil Office to Com c ,0 Facility Name: Existing Proposed 0 Design Capacity (MGD): Receiving Stream:_ Reference USGS Quad: NPDES WASTE LOAD ALLOCATION Permit No.: r 1 .3 o ZS M&D Industrial (% of Flow) : Domestic (% .of Flow) : LT l-, -2),ra,AcC/N Class: C- Sub -Basin: Date: 4- 79 • t • Pipe No.: County: Wake - 030(0'7 (Please attach) Requestor: TTa Regional Office Rale-1:st\ (Guideline limitations, if applicable, are to be listed on the back of this form.) a Design Temp.: 26115 L Drainage Area: 7Q10:. C3 C45 Winter 7Q10: a. Location of D.O.minimum (miles below outfall)• E CD 0 H L CO, Velocity (fps) : $ mt Avg. Streamflow: 30Q2: Slope• c-FS 3 !o •-O pon 41 `5 K 200C) : , 5 /•6.-Z- K2 (base da 20°C): 7` 6-`P 1 (base e, per day,e, perday, Effluent Characteristics Monthly Average 440411 A) c4 Comments 30b1; (V 2•S we .2,K1 4 $ owe Do 1 6 II° _ Ts5 30 3a (Q . 4A.Q Co(t loot/ too° /too K.9 04 6_a,4 6-8.< sU Original Allocation Revised Allocation repared By: 1 El Effluent Characteristics Monthly Average Comments Date(s) of Revision(s) (Please attach previous allocation) (17°. Reviewed By: Date: REQUEST NO. : 797 ********************* WASTELOAD ALLOCATION APPROVAL FORM ********************* FACILITY NAME TYPE OF WASTE COUNTY REGIONAL OFFICE RECEIVING STREAM 7010 : 0.0 CFS DRAINAGE AREA • • , • , HOLLY SPRINGS --SITE 2 DOMESTIC WAKE RALEIGH UT LITTLE BRANCH SUBDASIN : 030607 W7010 : 0,0 CFS 30Q2 : 0.0 CFS 0.6 SQ.MI. REQUESTOR : HAZEN & SAWYER STREAM CLASS :C ************************ RECOMMENDED EFFLUENT LIMITS ************************ WASTEFLOW(S) DOD-5 NH3-N U.O. PH FECAL COLIFORM TSS (MOD) (MG/L) (MG/L) (MG/L) , , • • • • , (SU) (/100ML): (MG/L) .25 .25 18 23 4 8 6 6 6-8.5 6-8.5 1000 1000 30 30 THESE LIMITS ALSO APPLY TO WASTEFLOWS OF 0.3 AND 0.4 MGD. *********************************************************************:**:****** FACILITY IS : PROPOSED ( EXISTING ( ) NEW ( ) LIMITS ARE : REVISION ( ) CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUED REVIEWED AND RECOMMENDED BY: MODELER SUPERVISOR,MODELING GROUP REGIONAL SUPERVISOR PERMITS MANAGER • Office to Com aU Facility Name: Existing Proposed LEI NPDES WASTE LOAD ALLOCATION }�011 Servt3S s,e. Date: 1g-i �1-) z Permit No.: Pipe No.: County: Wake Design Capacity (MGD): ' Zh Industrial (% of Flow): Domestic (% of Flow): Receiving Stream: brn1I2 $ca',nGil Class: C. Sub -Basin: d' 07 too Reference USGS Quad: (Please attach) Requestor: V\acr-eA.+ & Sa -1 Regional Office (Guideline limitations, if applicable, are to be listed on the back of this form.) Design Temp.: .261115. /i6 C.- Drainage Area: 6r,1 01; Z Avg. S treamf low : - 7Q10 : _ 0' a - C- 4 Winter 7Q10: a O 45 30Q2: . Location of D.O.minimum (miles below outfall). Slope (s -OPw, EE Velocity (fps):.1 7.1 K1 (base e, per day, 200C) : . 6 K2 (base e, per day, 20°C) : 3'n 0 c..1 0 H a) i L H S,, r'N%O4 W vARA -Effluent Characteristics Monthly Average (1110,0%i w Ameclf Comments SOO< to t 8 w0 hi(3-1 `I to .0 DO 6 (o IQ --rss 30 3C) 01.0 -Qc caQ Col ; (o 00 C oa) fu w& P 6.4,‹ b,-g , E.0 Original Allocation Revised Allocation Prepared By: 0 Effluent Characteristics Monthly Average Comments Date(s) of Revision(s) (Please attach previous allocation) // ` 5'�"1S7 Reviewed By : _ /af'M Py1Aa_ Date REQUEST NO. 797 ' WASTE|'OAD ALLOCATION APPROVAL FORM ********************* FACILITY NAME HOLLY SPRINGS --SITE 3 TYPE OF WASTE DOMESTIC COUNTY WAKE REGIONAL OFFICE RALEIGH REQUESTOR 1 HU8H HUDGJNS RECEIVING STREAM LITTLE BRANCH SUBBASTN : 030607 7010 ! O^O CFS W7Q1O 1 O,0 CFS 3002 O~O CFS DRAINAGE AREA t 5~9 SO,MI, STREAM CLASS tC RECOMMENDED EFFLUENT LIMITS ------ ' WASTEFLOW(S) (MOD) 0^25 0^25 BOD-5 (MG/L) 1 10 18 NH3-NI (MG/L) 2 4 6 D,C~ (MG/L) | 6 6 PH (SU) 6-8~5 6-8~5 FECAL COLIFORM (/100ML)l 1000 1000 TSS (MG/L) ! 30 30 THESE LIMITS ALSO APPLY TO WASTFKOWS OF 00 AND 0~4 MOD. FACILITY IS : PROPGSFD ( EXISTTNS ( ) NEW ( ) LIMITS ARE : REVISION ( ) CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUE!] REVIEWED AND RECOMMENDED BY� MODELER SUPERVISOR,MODELlNG GROUP REGIONAL SUPERVISOR PERMITS MANAGER ~ I'v,�01Qk- : I/ ^ �� �� �� � U Y� �� K� \� �- �� �� U � �� K� ,pp/l h]84 y0V~P QUALITY SECTION �RPNCH 611-- o L S prz1 J &cj rri oz.ia OA, 4'7c 7 rn = 0 •• Q� =.7'‘ .3 , Li M CZ), = 0,0 g.. ' lam 2300 0,0 _ .,� r .� µ -444----- c4-$ ,S tti " 154 ,Pf 24.o z 5-o 3C9o0' , $ 14 2K0' 3200 � .�1 t(o•�� caw State of North Carolina Department of Nacural Resources and Community Development 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor S. Thomas Rhodes, Secretary April 10, 1985 Suzanne Coriale Wake County Community Development Wake County Courthouse P.O. Box 550 Room 901 Raleigh, NC 27602 Dear Ms. Coriale: In response to your telephone request, I have attached a tabulation of the effluent limits for the proposed Holly Springs WWTP--site 3. The limits are maximum monthly mean values unless otherwise noted. The limits reflect the current policies and methodologies of the State Continuing Planning Process. A brief explanation of these policies is also attached. Please feel free to call me if you have any questions concerning these limits. JTC:mlt Attachment Sincerely, • / 401TA J. Trevor Clements, EE Technical Support Group P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-4984 An Equal Opportunity / Affirmative Action Employer r EFFLUENT LIMITATIONS. * v DISSOLVED OXYGEN*. o DESIGN STREAM Temp. used in oxygen model W O J of tt/mi_ It! TOTAL SUSPENDED SOLIDS *r\ Q W H 0 • -1 U 14 8 1 Frl / 100 mi o TEMPERATURE '" max./prise (stream values ) * . _ D. . SU_, lw lw I I 1 I ANALYSIS LEVEL - • ;--; L CI) al v' V) •J' n u_ C �"� ^ c f s * O u. Z C.9 H W W cmv, MGD - • N E .a- 4-, r • = C)i mg/ 1 * C] O al mg/ 1 I 41' i t Q mg/ 1 awn. • • DISCHARGER - RECEIVING STRE(\!4 • Site3: . Springs - Little Branch • Holly summer CPF07 C 0.0 0.25 .26 10 4 6 26 15 30 1000 ---.. 6-9 ._.., '' CPF07 C _---•- 0.0 0.25 42 18 6 6 16 15 30 1000 --- 6-9 winter• ._ ,`. DISCUSSION OF EFFLUENT LIMITATIONS Effluent limitations for BOD5, NH3-N, and dissolved oxygen are established in the State Water Quality Management Planning Process to attain water quality stream standards for dissolved oxygen. The limits for BOD and NH3-N are usually specified as maximum monthly mean values. Maximum weekly values, normally 1.5 times the monthly value:;, are also specified in the affected discharge permits. There are two basic levels of analysis ("B" and "C") used to establish the effluent limits. In each case the analysis can conclude an infinite nun.ber of combinations of effluent BOD5, NH3-N, and D.O. that will attain water quality standards. Obviously it would be impossible to list all combinations ani since spee_f is values must be in the NPDES permits, the Division staff selects a likely combitation for specification of the waste load allocation. Because of the numerous combinations which can be conceived, it is possible that some combinatior other than the one selected by the Division of Environmental Management (DEM) will prove to be the optimum. For this reason, DEM encourages the consideration of alternative combinations in the 201 Planning Process which may be advantageous due to the particular waste or waste treatment being considered. Since the waste load allocations and often the NPDES permits precede the development of 201 plans, it will be necessary to update plans and modify permits in a continuing process. The "B" and "C" levels of analysis differ primarily by the amount of data available. The "C" analysis is based on intensive water quality survey data while the "B" analysis is an empirical analysis based largely on the slope and other physical characteristics of the receiving stream. Additional explanation of the "B" and "C" analyses is contained in Appendix E of the Basin Plans. Both analyses use the basic Streeter -Phelps theory. In a "B" level analysis effluent ultimate BOD (BODu) is set equal to BOD5 + 4 x NH3-N. The combination of BOD5 and NH3-N may be modified as long as BODu is not changed. In most level "C" analyses Carbonaceous BODu (CBOD) is equal to 1.5 x BOD5 and Nitrogenous BODu (NBOD) is equal to 4.5 x NH3-N. Although tradeoffs between BOD5 and NH3-N are acceptable in the level "C" allocations, the equation of BODu = 1.5 x BOD5 + 4.5 x NH3-N cannot be used in all cases. When a large difference between Carbonaceous BOD and Nitrogenous BOD stream removal rates exist, the trade-offs will be less in accordance with the equation. In any case, modifications to the waste load allocations have to be approved by DEM before 201 plans or NPDES permits are completed. Proposed allocation modifications should be coordinated through the Local Programs or Technical Services Sections. As a result of regulation changes, the effluenc limits on suspended solids may be increased from the normal 30 mg/1 to 90 mg/1 for lagoon waste treatment systems. Since the attached table does not address the type of treatment system to be employed, this consideration should be utilized in the design of the waste treatment system. Even though higher suspended solids are allowable for lagoon systems, the systems must be designed to allow attainment of the BOD, NH3-N, and D.O. effluent limits. •r7c't•7 ▪ am) Office to Com NPDES WASTE LOAD ALLOCATION Facility Name: H n G-L`)t SMd1 J &5 Date: ` ) Z Existing Proposed I t .1 n Design Capacity (MGD): •2'5 'b Industrial (% of Flow): Domestic (% of Flow): Permit No.: Pipe No.: County: k'". /60 Receiving Stream: (1 �-�i e- (Zf Sr- Class: • Sub -Basin: 030(07 Reference USGS Quad: (Please attach) Requestor• 46LZ-e,1¢1 Regional Office (Guideline limitations, if applicable, are to be listed on the back of this form.) Design Temp.: 25-°/i5 • C Drainage Area: .r 1 mft 2 Avg. Streamflow: 7Q10: C) ejS Winter 7Q10: --' 30Q2 CU 4.4 Location of D.O.minimum (miles below outfall): Slope- , E Velocity (fps) : .127 1 • Ill K1 (base e, per day, 21�C) : ' (� /l,'1( K2 (base e, per day, 41411PC) •1Z'Zlo/Z6 /14 0 c) H • L ai wryvh„..1-, Effluent Characteristics Monthly Average Mc V1 kiefay. Comments F ig- 18 30 nI-r) 1U143--) 1 1 1 q 5? 1 -0e d co(; 1600 coo /too p 04 (_g4 6- g ,5 Sc.) Original Allocation Revised Allocation r Effluent Characteristics Monthly Average Comments 1 Date(s) of Revision(s) (Please attach previous allocation) Reviewed By: Date: 38o' 7 cyf 7/0 = d c ` 5 / L 3 / i `sal C:75 00 P` Z IA _ f1 2 L-- I,(oIAA( E. 1.0_4v = 380 ' ow - 0 SS = 5,0 A t,e -Moir - d P. i 5(o ( -epw, L 8 vsA, ay..) ... f , f � , 3 w 7(t0 Y'e( = v N.4-s f wt'4 mt 5l — ►ii ..atw. 256 , olf1 2.11Th 350 o4t, 15) 35o 4 o' .ogl7 I17 300 aoco ...s % , 3Z 2 Q D e. Soo' , oQ y 10 'IRO' G bo' .03 88 CLAr Qx 5 2/ of Z'°eO' , 442 Za. 3 Zfdp ' y l ,03'1 26.K 150 (,50' z HD 2700 651 I Z o z.' 1t Srvet = 31 4 P ✓'1 A -vs 5(0-H2 •- 1 21 SPo, REQUEST NO. : 797 ********************* WASTELOAD ALLOCATION APPROVAL FORM ********************* FACILITY NAME TYPE OF WASTE COUNTY REGIONAL OFFICE RECEIVING STREAM 7010 : 0.0 CFS DRAINAGE AREA . . . • : 0.2 HOLLY SPRINGS --SITE 4 DOMESTIC WAKE RALEIGH UTLEY CREEK W7010 : 0,0 CFS 3002 : SQ.MI.. STREAM CLASS REQUESTOR : HAZEN I SAWYER SI.IBBASIN : 030607 C CFS ************************ RECOMMENDED EFFLUENT LIMITS ************************ WASTEFLOW(S) BOD-5 NH3-N D.O.. PH FECAL COLIFORM TSS (MGD) : (MG/L) : (MG/L) : (MG/L) : (SU) (/100ML): (MG/L) : .25 .25 18 30 11 19 6 6 6-8.5 6-8.5 1000 1000 30 30 THESE LIMITS ALSO APPLY TO WASTEFL.OWS OF 0.3 AND 0.4 MOD. ***********************************************************:*:*:*:************** FACILITY IS : PROPOSED ( '/) EXISTING ( ) NEW ( ) LIMITS ARE : REVISION ( ) CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUED REVIEWED AND RECOMMENDED BY: MODELER SUPERVISOR,MODELING GROUP REGIONAL SUPERVISOR PERMITS MANAGER _DATE --DATE _DATE ...._._._._DATE . ti- 7-8if Engineer Date Rec. aI Facility Name: NPDES WASTE LOAD ALLOCATION 3 ite. Li A Date• 12 -Sy vl Existing a 14 Permit No.: Pipe No.: County: V� a o Proposed 01 ,1 4.2 Design Capacity (MGD): 'Zh IuUt Industrial (% of Flow): Domestic (% of Flow): 60 47-0 cu Z Receiving Stream: UTLC'< C:tz,iC.. Class: �- Sub -Basin: _ C330(00i =1 1G . Reference USGS Quad: (Please attach) Requestor:. '�� ": S Q-C Regional Office E 0 0 L 4.1 (Guideline limitations, if applicable, are to be listed on the back of this form.) Design Temp.: * IS ( Drainage Area: 7Q10: O Winter 7Q10: Location of D.O.minimum (miles below outfall): Velocity (fps) : - 4(' 1 W Ki (base e, per day,): .Z (1) c Cs Avg. Streamflow: 30Q2• Slope: (og -(2f)V 1 K2 (base e, per day, C) • Effluent Characteristics Monthlyn-t1nk Average A4efaht. Comments gnDi; 2i Zq MAID N43-N 1 i 1 `t "' IS 0 6 (a m (.,Q -Ts c 30 30 ofI3 , 1 Prepared By: Original Allocation Revised Allocation Confirmation Effluent Characteristics Monthly Average Comments Date(s) of Revision(s) (Please attach previous allocation) Reviewed By: Date: 4=5-g-41 r:• 7 275 • • /` She!oa�? yam, Arrport 69.3 2 04C::C.: "-: - r• h..s • -.-..._,• ':',/I 4-- •'✓' V c I x i 1 ... - 695 V/ Molly Springs--; . / .Gear% . • ••�pm,471 .. 440. if 4 • 4 • •- • • - :Radio T 442 696 5r •. a 'oea. edited. and published by the Geciogicai Survey •11 .)y USGS. NOS1 NOAA. and North Caroi'ra r.leccetic Surve•. .•aohv by Dhotogramrnetr'c ^rerhoos •"- aP• - :n^.�Cnr�r nc MN j A. f o r 5 ''''. c t"fli i'l A 2-7T-C 1 Sr J (AM . ,i2e� ii-q-gy 'k ,ly e •cv� 70co ---- Oc-s el- t4 w tdv- s i4-t- a I cI I,ri o U.) l b4-.I t 40 VY-CAA,Ve. W cV\C) , N® C � - 6 1.;�� ,feog--. r I i s ,,,-2- qu.u_ r s.i. #. 55 - bra ,1,- ti R% . 12 I L = I-3 0A, . = I-61 (Mt( ,)\ - . 2( �w IC:k0 O 4 titi I VtcL6_0 I'll- 0 RO ---- 0 scow = �, ,cPw 3(o = 27 -OrA4 e, R., FteAr - _ x `s_ _-i.___________A_______________>c 3'f 0 ' — 7gs0 ' �tOO 100 , 13ti 1 S Is 470 �i000 , i 5-7 13 / 3-6-a -jLi 0 76 , 1100/ `o7c 142 Z GO 2 00 _ o�G-4 25-0 65o' • S 4 I 3 3 d N0a / ,a�� c 7i f-`}- 231,O 2 700' 'Mt zo aims." 2 Z. - - --- 3Z o 3t0 300 of Co/ - , i-4o - jsfoe .4 '5'it Z -. Ion/ ,f81 55 All `" z7�P vti Zak i g0 J!O / - ,009 f o5-.. Iy00 •Uh 3g AV a- ...oPt = 4,g .X REQUEST NO. : 797 ********************* WASTELOAO ALLOCATION APPROVAL FORM ********************* FACILITY NAME TYPE OF WASTE COUNTY REGIONAL OFFICE RECEIVING STREAM 7Q10 : 0.0 CFS DRAINAGE AREA .2 HOLLY SPRINGS --SITE 4A DOMESTIC WAKE RALEIGH UTLEY CREEK W7010 : 0.0 CFS SQ.MI. REQUESTOR : HA7EN I SAWYER SIJBBASIN : 030607 3002 : 0.0 CFS STREAM CLASS :C ************************ RECOMMENDED EFFLUENT LIMITS ************************ WASTEFLOW(S) BOD-5 NH3—N D.O. PH FECAL COLIFORM TSS (MGD) (MG/L) : (MG/L) (MG/L) (SUJ) (1100ML): (MG/L) : .25 .25 22 29 11 19 6 6 6-8.5 6-8.5 1000 1000 30 30 THESE LIMITS ALSO APPLY TO WASTEFLOWS OF 0.3 AND 0.4 MOD. DISCHARGE JS LOCATED DOWN— STREAM OF THE SPRINGS AROUND WHICH THE TOWN WAS BUILT. THERE IS PROBABLY FLOW IN THIS STREAM YEAR—ROUND r ALTHOUGH WE HAVE NO DATA TO SUPPORT IT. ********************************************************************:*********** FACILITY IS : PROPOSED ( EXISTING ( ) NEW ( ) LIMITS ARE : REVISION ( ) CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUED REVIEWED AND RECOMMENDED BY: MODELER SUPERVISOR,MODELING GROUP REGIONAL SUPERVISOR PERMITS MANAGER • :c.9 �L�,/I..�...._.DATE : —! —DATE ._.DATE :...5 .1.# g¢:_ : Si._ -•-•� _--.-._._____.__._DATE•._ .• v • Additional Explanation: Five potential discharge locations have been reviewed by the modeling group for the Town of Holly Springs. Three of the sites are located along Little Branch and the other two sites are located at the headwaters of Utley Creek (map attached) . In each case, the U.S.G.S. has estimated a 7Q10 of 0.0 cfs for the entire stream segment during summer and winter conditions. Therefore, assimilative capacity will be heavily influenced by stream reach characteristics such as slope, length, and average flow conditions (which are primarily responsible for the shape of the Channel). In this manner, greater assimilative capacity during low flow conditions will exist for discharges located at the headwater portions of the stream. However, since the headwater locations are essentially dry ditches, there may be a greater potential for nuisance conditions to arise at these sites. This will largely depend on the amount and quality of wasteflow from the proposed Holly Springs facility. In general, the large flows, ultimately expected (i.e. 250,000 gpd) should prevent nuisance conditions from occurring since "pooling" should not be a problem. Site 4A may be of particular interest as a potential site of waste disposal. This location lies directly below the springs from which the town draws its name. It is likely that the springs feed Utley Creek year- round. However, the U.S.G.S. does not gage this stream nor do their empirical dquations amount for the presence of the springs. The allocation for this site, therefore, was completed assuming a 70_0 of 0.0 cfs. Nonetheless, some dilution of wasteflow during low flow conditions might occur because of spring -fed waters. = _i q HDH/vs Enclosure cc: Honorable Gerald Holleman, Mayor Town of Holly Springs MAILING ADDRESS: P. O. BOX 30428 OFFICE LOCATION: 302COTTON BUILDING HAZEN AND SAWYER, c. RALEIGH, NORTH CAROLINA 27622 (919) 782-8333 4505 CREEDMOOR ROAD CRABTREE VALLEY February 27, 1984 Mr. Forrest Westall, Head Operations Branch Water Quality Section Department of Environmental Management P.O. Box 27687 Raleigh, NC 27611 Dear Mr. Westall: Please refer to our recent conversations with you and your staff concerning the establishment of effluent limits for alternative wastewater treatment facility sites for the Town of Holly Springs. We would like to request, on behalf of the Town of Holly Springs, a determination of the effluent limits at the locations noted on the enclosed map for design flows of 0.25, 0.3 and 0.4 mgd. In addition, we would appreciate your indication as to whether or not the effluent limits provided with your letter of April 7, 1976 to Moore, Gardner and Associate, Inc. for effluent discharges at SR 1301 and SR 1006 on Middle Creek remain valid. If not, we would appreciate revised effluent limits for these sites. If you have any questions or require additional informa- tion, please feel free to contact me. Yours sincerely, HAVEN AND1SAWYER, P.C. gins, P.E. Principal EngirRee c E 9 V E D FEB 291984 WATER QUPLTY SEfPON O.C. -a OFFICES IN NEW YORK, RALEIGH, AND HOLLYWOOD, FLORIDA ,�363 ,I n 2 775 -- Sh-Iba', A'rr..rt 693 2 040 000 FEET 694 695 696 50' ped, edited, and published by the Geological Survey of by USGS, NOS/NOAA, and North Carolina Geodetic Survey graphy by photogrammetric methods from aerial photographs 1971 Field e•henbin7A MN I GIN ,1 I FUOUAY-VARINA -i .3 ]000 0 z 393 oRatga Too. La(ke, 3S0 3(10 330 324 310 3oc 2S0 L,)( R‹,7,z-tA 7Sti.(4,T2Ar (t( lOW (6 Z to , 3L e4-s) VI 0 -Pow ()Gt.-id( 1-82 - g333 ((- Lialca-) 6ic s(cl-fre) ofufr, , ciLia-Gfamako(a_ .tt v4s-- sat 5tf tom- t ie s(,p- 4' (' '1 • 600' , cI3 stop , o4S 3cy6g Al Slop = I05 4v% e(e,1/4) 350 3Z,O 2-8 35-6 (J AX (qoo z6a01 (606 ' Al '(o = CZ (t.r ,i53 C L tf tole zrc 2- 4 -c.....„4,01;1/41A 7;4.4 0-{)` .S%C4't. 4r 2 s-ol000 pc) Lek,* (V0.54- J 4-101•, 5, 4, 4,t),Ar s,t.e.c. 2 z tt — &'1 . i-gZ r g -433 1 r� 9 —ettik17 �jA (4) Arx �(� � P 11pp ,,r.,' -, \ht...4t , vq:41 y1/1 11 +Y :,t 4cAll St4 vle'4' 9 C C-k-t--- .-. 4'tt.- IrCAk04.11k (t275Lat-r-4. - .4i.c.w...*-3. i M Dt/� ou) = r� � t--a o,-,