NC0007323_STAFF REPORT_19930217

INPDES DOCYNENT SCANNING COVER SHEET
NPDES Permit: NC0007323
Yanceyville WTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Staff Report^
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: February 17, 1993
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SOC PRIORITY PROJECT: Yes No X_
If Yes. SOC No.
To: Permits and Engineering Unit
Water+quality Section
Attention_ Greg Nizich
cc. Caswell Co. Health Dept.
Water Quality-Central Files
ft
Technical Support
WSRO
a
DATE: February 17,1993
NPDES STAFF REPORT AND RECOMMENDATIONS
Yanceyville WTP
Caswell County
NPDES No. NC0007323
PART I - GENERAL INFORMATION
1. Facility and Address:
Mr. Curtis Davis, Mayor
Town of Yanceyville
PO Box 727
Yanceyville, N.C. 27379
(Permit must be issued to the Mayor and not to the ORC, Who
signed the application- This may require that a new application
be submitted to the Division_ Requested by WSRO on 930217_)
2. Date of Investigation: February 3, 1993
3. Report Prepared By: Ron Linville
4. Persons Contacted and Telephone Number.
Mr. William Carter (919) 694-4227
Mr. Darrell Russell (919) 226-5534
5. Directions to Site: Take Hwy 15SE to Yanceyville. Rt. on Old
US 158 (Business). Rt. on Old NC 62(SR 1156). Plant is on the
right approx. 2.5 miles.
6. Discharge Point- Latitude: 360 23' 31"
Longitude: 790 20' 57"
Attach a USGS Map Extract and indicate treatment plant site
and discharge point on map.
USGS quad No.: B21NE and USGS Quad Name: Yanceyville

7. Size and expansion area consistent with application?
Yes No If no, explain: NA
8. Topography (relationship to flood plain included): Appears to be
out of the natural flood plain.
9. Location of nearest dwelling: None known within 1/5 mile.
10. Receiving stream or affected surface waters: Fullers Creek
a Classification: WS-II CA
b. River Basin and Subbasin No.: ROA 03-02-04
C. Describe receiving stream features and pertinent
downstream uses: Creek flows through rural woodlands.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a Volume of Wastewater to be permitted: 0.015 MGD
(Ultimate Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? Same (provides 500,000 gpd
drinking water)
C. Actual treatment capacity of the current facility (current
design capacity)? Approx. 0.008 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: None
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Two lagoons
in series (100,000 gallons and 304,000 gallons
respectfully).
f. Please provide a description of the proposed wastewater
treatment facilities: A new WTP is to be proposed in
1994 for approximately 1.0 MGD. A new lake (Farmer
Lake) has already been constructed and Country Line
Creek reclassified to WS-II. This new lake currently
provides additional water directly into the old WS-II lake
where both intake and discharge (near the spillway) occur.
A new discharge location will be needed (if alternatives are
not available) for the new WTP. The old water supply lake
and creek should be reclassified (when the new discharge
begins) to Class C waters. See attached map for potential
site location of new facility and existing WTP.
g. Possible toxic impacts to surface waters:
Residual chlorine.

Y
h. Pretreatment Program (POTWs only)
in development approved
should be required XXX not needed
2. Residuals handling and utilization/disposal scheme: Sludge
physically removed from lagoons as needed, dried and
taken to landfill.
a If residuals are being land applied, please specify
DEM Permit No. NA ® present.
Residuals Contractor
Telephone No.
b. Residuals stabilization: PSRP PFRP Other Unknown X
C. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating
sheet): I
4. SIC Code(s): 4941 Primary 21 Secondary
MTU Code: 300_Q
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants
Funds or are any public monies involved. (municipals only)?
NA
2. Special monitoring or limitations (including toxicity) requests:
3. Important SOC, JOC or Compliance Schedule dates: Please
indicate)

4. Alternative Analysis Evaluation: Has the facility evaluated all
of the non-discharge options available? Please provide regional
perspective for each option evaluated.***
Spray Irrigation: no
Connection to Regional Sewer System: no
Subsurface: no
Other disposal options: No other options appear to be reasonable
to the WSRO other than pumping to the Yanceyville WWTP if this
method is economically feasible.
***While the new WTP is being designed, these alternatives
should be reviewed and considered. If the old WTP were to
remain active, its discharge could be pumped to the WWTP if
economically feasible in order to eliminate this discharge point
and NPDES Permit.
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
WSRO recommends the permit be issued based on the attached
letter from Mr. Darrell Russell which states that alternatives are
not options due to the proposed relocation of the Water
Treatment Plant.
---------------------------------
Signature of Report Pre arer
-= �- - ---- - ------------
Water Quality Su rvisor
-� Z -- ..................
Date

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RATING SCALE FOR CLASSIFICATION OF FACILITIES
Name of Plant:
v Owner or Contact Person:
Mailing Address:
_C— _2
County: :Ja-71 Teiephone: 5�/,- e W- 4eZU9_
NPDES Permit No. NC00O ?32 3 Nondisc. Per. No. _
lssueDate:_ U / _ Expiration Date: 91Y& E_
Existing Facility New Facility
Rated By: 2 , L Date: S.?
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central Office
ORC__ /r' �;r., �G✓ Grade Z�
.Plant Class: (circle one) 1 II III IV Total Points %r
ITEM POINTS (5)SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(1) Industrial Pretreatment Units and/or (i)Aeralion - High Purity Oxygen System . . . . . 20
Industrial Pretreatment Program Diffused Air System. . . . . . . . . . . 10
(see definition No. 33) 4 Mechanical Air System (fixed,
(2) UPSIQN FLOW OF PLANT IN GPO floating or rotor). . . . . . . . . . . . .. a
(not applicable to non-contaminated cooling waters, sludge Separate Sludge Reaeralion 3
handling facilities for water purification plants, totally (ii) Trickling Filler
closed cycle systems (del. No. 11), and facilities High hate................... 7
consisting only of Item (4) (d) or Items (4) (d) and (11) (d] Standard Rate.. 5
0 20.000.......... ..............I. 1 Packed Tower. 5
20.001 - 50.000 . ........................ . 2 (iii) Biological Aerated Filler or Aerated
50,001 -- 100.000 ... ...................... . 3 Biological Filter. . . . .. . .... . .... . . . .. . 10
100,001 250,000............ .. ... .. . .. .... 4 (iv) Aerated Lagoons................ .. ... . 10
250.001 •• 500,000 . ... ..... .. . .. .. . ......... 5
500,001 --1,000,000 .. . .. ........ .. . ..... ..... a (v) Rotating Biologicat Contactors . . . . . . . . . . 10
1,000,001 -•2,000,000. . .. ..... .. ...... .. . .... 10
2,000.001 (and up) - rate 1 point additional for each (vi) Sand Fillers-
200,000 gpd capacity up to a intermittent biological . . . . . 2
maximum of 30 recirculating biological . . . . . 3
Design Flow (gpd) • (vii) Stabilization Lagoons . . . . . . . . . . . . . . . . . . .
(3) PRELIMINARY UNITS (see definition no. 32) (viii)Cfarifier . .... . . . . . . ..... .. . .. . . . . . ... .
(a) Bar Screens........ ................ ........ 1 (ix) Single stage system for combined
or carbonaceous removal of BOD and
(b) Mechanical Screens, Static Screens or nitrogenous removal by nitrification
Comminuting Devices. . ...... ... ..... ....... . 2 (see def. No. 12) (Points for this item
(c) Grit Removal.... ...... ..................... 1 have 10 be in addition to items (5) (a)
Or (i) through (5) (a) (vii? . . . . . . . . . . . . . . . . . a
(d) Mechanical or Aerated Grit Removal. . . . . . . . . . . 2 (x) Nulrienl additions to enhance BOD
(e) Flow Measuring Device....... .... .. .. . . ...... 1 removal..... . . . . .............. ........ 5
or (xi) Biological Culture ('Super Bugs') addition
(1) Inslrumenled Flow Measurement. . . . . . . . . . . . . . 2 to enhance organic compound removal . . . . . 5
(g) Preaeralion. .. .. ....... .. ........... ....... 2 (b) Nitrogenous Stage
(i) Aeration - High Purity Oxygen System . . . , 20
(h) Influent Flow,1 quatizalion .. . . . . . . ... . . . . . . . . 2 Dil{used Air System . . . . . . . . . . . 10
(i) Grease or Oil Separators - Gravity... ....... 2 Mechanical Air System (fixed,
Mechanical....6.... . 3 floating, or rotor) . . . . . . . . . . . . a
Dissolved Air Flotation. 8 Separate Sludge Reaeration . . . . . 3
Q} Prechlorinalion . . . . . .. .... .. . . .. .. .. . .. .... .. 5 (if) Trickling Filler -
High Rate . ...... .. ... . . 7
(4) PRIMARY TREATMENT UNITS Standard Rate..... . , .. . . . 5
(a) Se,tic Tank (see definition no. 43) . . . . . . . . . . . . . . 2 Packed Tower. ... . ... . . . . 5
(b) Imhoff Tank. ... . ......... 6.... . . .... .. ... . . . . 5 (i'si) Biological Aerated Filler or Aerated
(c) Primary Clarifiers . . .. . . .. . . . . . . . . . I . . . . . . . . . . 5 Biological Filler . . . . . . . . ... . . . . . . . . . . . . .. 10
(d) Settling Ponds or Se;lling Tanks for Inorganic (iv) Rotaling Biological Contactors . . . . . . . . . . . . 10
Non-toxic Materials (sludge handling facilities (v) Sand Filter-
for water purification plants, sand, gravel, intermittent biological . . . . . . . . 2
stone, and other mining operations except recircu!aling biological . . . . . . . . 3
recreational activities such as gem or gold (vi) Clarifier.. .. . . . . . . . .. . . .. . 5
mining). ..6.. . . .. . . ..... . ...... ..... .... .. . . . 2

(6) TERTIARY OR ADVANCED TREATMENT UNIT (10) 4CHEMICAL ADDITION SYSTEM (S)(See definition No-9)
(a) Activated Carbons Beds - (not applicable to chemical additions rated as item
veilhout carbon regeneration....... ... . . . . .. .. 5 (3) 6). (5) (a) (xi). (6) (a). (6) (b), (7) (b), (7) (e).
with carbon regeneration ........... ... .. .. .. Is
• (b) Powdered or Granular Activated Carbon Feed - (9) {a}, (9) (b), or(9} (c) 5 points each: List:
5
without carbon regeneration............. . . . . 5
5
With carbon regeneration.............. . . .. . is
5
(c) Air Stripping............................. 5
5
(d) Denitrification Process (separate process) . . . . . 10
(e) Elecirodialysis.............................. 5 (11) MISCELLANEOUS UNITS
(f) Foam Separation............................. 5 (a) Holding Ponds, Holding Tanks or Settling Ponds
(g) ion Exchange................................ 5 for Organic or Toxic Materials including wastes
(h) Land Application of Treated Effluent from mining operations containing nitrogen andlor
(see definition no. 22b) (not applicable for phosphorous compounds in amounts significantly
sand, gravel, stone and other similar mining greater than is common for domestic wastewater .......... 4
operations) (b) Effluent Flow Equalization (not applicable to storage
(i) on agriculturally managed sites (See del. basins which are inherent in land application systems). 2
No-4)................................... 10 (c) Stage Discharge (not applicable to storage basins
(ii) by high rate infiltration on non-agricullurally inherent in land application systems....................................... 5
managed sites (includes rotary distributors (d) >aumps. . ,_--_,___._---_ _ ._.»» _ _.--_____.__r»... 3
and similar fixed nozzle systems) . .. . . . . . . . . 4 (e) Stand-By Power Supply... ...__.__..._.
(W) by subsurface disposal (includes low pressure (1) Thermal Pollution Control Device:................................. 3
pipe systems and gravity systems except at
plants consisting or septic lank and nitrifica-
tion limes only)............................ . 4 TOTAL POINTS
WMicro=eens.................................. 5
(j) Phosphorus Remoral by Biological Processes CLASSIFICATION
(See def.No.26) ............................ 20
(k) Polishing Ponds - without aeralion . . . . . . . 2 Class I.........................._........__.___...» 5 - 25 Points
with aeration... .. . . . . . 5 Class 11...........................» ».....»_» ____ 26. 50 Points
(I) Post Aeration - cascade ......... ..... 0 Class III................................. .. 51- 65 Points
diffused or mechanical . . . 5 Class IV................................» ._._ 66- Up Points
(m) Reverse Osmosis............................... 5
(n) Sand or Mixed•Media Fillers-low rate . . . . . . . . . . . 2 Facilities having a rating of one through four points, inclusive,
high rate...... . ... 5 do not require a certified operator. Classification of all other
(o) Treatment processes for removal or metal or facilities requires a comparable grade operator in responsible
cyanide.................................... 15 charge.
(p) Treatment processes for removal of toxic
materials other than metal or cyanide . . . . . . . . . 15 Facilities having an activated sludge process will be assigned
a minimum classification of Class II.
1 SLUDGE TREATMENT Facilities having treatment processes for the removal of metal
(a) Sludge Digestion Tank - Heated............... 10 or cyanide wilt be assigned a minimum classification of Class II.
Aerobic........... .... 5
Unhealed...... ....... 3 Facilities having treatment processes for the biological removal
(b) Sludge Stabilization (chemical or thermal) . . . . . . . 5 of phosphorus will be assigned a minimum classification of Class
(c) Sludge Drying Beds - Gravity............ ..... 2 Ill.
Vacuum Assisted. . . . . . . 5
(d) Sludge Elulrialion.... ............... . .. . . . .... 5 In-plant processes and related control equipment which are an
(e) Sludge Conditioner (cherricat or thermal) . . . . . . . . 5 integral part of industrial production shall not be considered waste
(f) Sludge Thickener(gravity)............ .. . . . . . ... 5 treatment. Likewise, discharges of wastewater from residences
(g) Dissolved Air Flotation Unit having a design flow of 1,000 gpd or less, shall not be subject to
(not applicable 10 a unit rates as (3) (i) . . . . . . . . . 8 rating.
(h) Sludge Gas Utilization (including gas storage) . . . . 2
(i) Sludge Holding Tank - Aerated....... .... .. ... 5 ADDITIONAL QQMMENTS-
Non-aerated..... . . . .... 2
(j) Sludge Incinerator - (not including activated
carbon regeneration) . . . . . 10
(k) Vacuum Filler, Centrifuge or Filler Press or other
simitar dewalering devices.... ... . ... . . . . . . . . 10
(8) SLUDGE DISPOSAL (including incinerated ash)
(a) Lagoons.............................. ... .. ..... 2
(b) Land Applicalion (surface and subsurface)
(see definition 22a)
-where the facility holds the land app. permit . . . 10
-by contracting to a land application operator who
holds the land applicalion permit .. . . . . . . . . . . . . . . 2
-land application of sludge by a contractor who does
not ho!d the perrnil. for the wastewater treatment
facility where the sludge is generated . . . . . . . . . 10
(e) Landlilied(burial) .. .. . .......... . . ... . . . . . . . . . 5
(9) DiSINFECTiON
(a) Chlorination...... .................. . ... . 5
(b) Dechlorinalion. .... ......... .... ... ... 5
(c) Ozone.............. ................ 5
(d) nadiation........... ............... 5

alley , williams , carmen & king , inc .
BVRUNGTON OFFICE KANNAPOLIS OFFICE GREENSBORO OFFICE
ENGINEERS AND ARCHITECTS CONSULTING ENGINEERS ENGINEERS AND ARCHITKTJ
p.o.box 1179 1 740 chapel hill road p-o. box 1248 1207 south main street 300 east wendover avenue,suite ao9
burlinglon,north Carolina 27216 kannapolis,north Carolina 2W82 Greensboro,north Carolina 27441
telephone [phone] telephone [phone] telephone [phone]
lax 9191226-3034 fax [phone]-"10 (at. 91 913 78-2 58 3
PLEASE REPLY TO;
February 17, 1993 Burlington
92197
Mr. Ron Linville
N.C. Division of Environmental Management
Department of Enviroriment, Health
atxd Natural Resources
8025 North Point Boulevaxd,, Suite 100
Winston-Salem, North CarOlina 27106-3295
Subject: Town of Yanceyville
Supernatant Discharge
From the Existing Water Filtration Plant
Dear Mr. Linville:
As you requested, we have evaluated alternatives relating to the supernat,tnt discharge from the
Town of Yanceyville's existing water filtration plant. Please accept this litter of eaplauation
for that purpose.
The Town of Yanceyville operates a 0.50 MGD water treatment plant at the Fuller's Creek Lake and
presently discharges supernatta `nt froth sludge holding lagoons to the like. be Town has a series of
two lagoons that. the supernatant fln�vs through prior to-discharge. The effluent has consistently
been of good quality meeting permit standards. This present method of supernatant disposal is
simple, easy to operate and maintain, and it does riot take up valuable treatrueut capacity in the
scwk;r $ystem. If allowed to cotltinUe in its present mode, the Town will not have to expend
additional fluids for supern0 nt handling, Sludges from the water �iant operation are not
-discharged to the streaut but are stored in the lagoons and reuioved periodically and disposed of in
the County landfill,
i
TAuuenct A.ALLEY,P,E, 1EFFt RY rj.Aio,)1nY,P.r. H(R P.F HT A.CA;:'.J[4, 4,LA,
"A)VY00b 6.KS`+4,P.0 - WAYNI'1.PFRRS',R.E.S. (frMCRtOg N.C- LWN{CQS,4.I,A.,RJ.O.A.
FRgNZ V.JIMT,Ff. U4HRELL L.RL'9Si U,P.E. FE.VNErH D.SIAJ 10RO.AJ.A.

Mr. Ron Linville
DEM/DEHNR Subject, Town of Yanceyvi�le
Page 2 Supernatant Disch rge
February 17, 1993 From the Existing Water Filtration Plant
i
Another alternative is for the down to pump its supernatant to the sewer .system. Approximately
3,000 ft. of force main and a pumping station would be required for this purpose. We estimate the
cost for this alternative as follows:
1 Ea. pumping station S 60,000.00
3,000 L.F. 4" Force Main @ $10.00 30,000.00
Air Relief Valves/Menboles 6,000.00
1 Ea. Road Crossing 2,000.00
Rights-of-Way (2,000' @ $5.00) 10,000.00
Engineering and Contingencies 27,00.0,00,
TOTAL $135,000.00
The Town would still have to remove sludge from the existing lagoons under this option. This
option would also utilize treatment plant capacity which the Town has very little reserve
capacity. At a cost of $4.00 per gallon, the actual cost for handling 10,000 gallons of
supernatant represents another $40,000.00 which should be considered in addition to the $135,000,00
cost estimated above,.
In summary, it is my opinion that the present method of handling supernatant is the most cost
effective alternative for the Town of Yanceyviile.
Sincerely,
ALLEY, WILLIAMS, CARMEN & KING, INC.
Darrell L. Russell, P. E.
DLR/t
cc: Curtis E. Davis, Mayor
I
aney, vv'illia1T15, carmen, Ut Eying, Inc p.o. Sox 1179 . 740 chapel hill ro?!,J , hurlir,gton, north 4aro4ina 27�15

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