NCG550277_Staff Report_19930630

YYLCO-61-0--)' 'Tc-: ettiA4-_-
SOC PRIORITY PROJECT : No
To : Permits and EngineeriTnit
Water Quality Sect 15
�V)
Attenion: M v s
I , e Date : June 30 , 1993
NPDES STAFF PEPQ \ D RECOMMENDATIONS
,Cr.w 1 . „s ''
NPrmi.tq14-6,474,
pe,"No': : 93-131 1•1C-GS50 all
PART I - GENERAL yINFORMATION
1 . Facility and Address : Harry Marshall Noyes Residence
6400 Point View Court West
Concord, N. C . 29025
2 . Date of Investigation: June 29 , 1993
3 , Report Prepared By : Michael L . Parker , Environ . Engr . II
4 . Person Contacted and Telephone Number : Harry Marshall
Noyes , (704 ) 782-6452
5 . Directions to Site ! From the junction of Hwy . 601 and SR
1132 (Miami Church Rd . ) south of the City of Concord, travel
east on SR 1132 approx . 4 . 4 miles and turn right onto SR
2685 (Basswood Drive) . Travel approx . 100 yards on SR 2685
and turn right onto SR 2697 (Point View Court West ) . The
site is located at the end of Point View Court West on the
left side of the cul -de-sac (white brick residence) .
6 . Discharge Point (s) , List for all discharge Points : -
Latitude : 35° 20 ' 45"
Longitude : 80° 28 ' 05"
Attach a USGS Map Extract and indicate treatment plant site
and discharge point on map .
USGS Quad No . : F 17 SW
7 . Site size and expansion area consistent with application:
Yes .
8 . Topography (relationship to flood plain included) : Gently
rolling, 3-5% slopes . Facility is not built in a flood
plain.
9 . Location of Nearest Dwelling : Several dwellings are located
within 300 feet of the existing facilities .

Page Two
10 . Receiving Stream or Affected Surface Waters : Unnamed
Tributary to Dutch Buffalo Creek (private pond) .
a . Classification : C
b. River Basin and Subbasin No . : Yadkin 030712
c . Describe receiving stream features and pertinent
downstream uses : The discharge enters a small
privately owned pond. Other nearby residents have
accPss to the pond, however , it does not appear that
swimming takes place. The pond is approx . 3 acres in
size . There are no other known dischargers downstream
of this pond prior to joining the main segment of Dutch
Buffalo Creek .
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . a . Volume of Wastewater : 0 . 0003 MGD (Design Capacity)
b. What is the current permitted capacity : 0 . 0003 MGD
c . Actual treatment capacity of current facility (current
design capacity) : 0 . 0003 MGD
d . Date(s) and construction activities allowed by previous
ATCs issued in the previous two years : N/A
P . Description of existing or substantially constructed
WWT facilities : The existing WWT facilities consist of
a 1500 gallon capacity septic tank followed by a
recirculation tank, a subsurface sand filter and tablet
disinfection .
f . Description of proposed WWT facilities : N/A
g . Possible toxic impacts to surface waters : Chlorine is
added to the discharge .
h. Pretreatment Program (POTWs only) : N/A
2 . Residual handling and utilization/disposal scheme: Residuals
are removed as needed by a septage hauler and transported to
a site approved for the disposal of septage by the DEH.
3 . ' Treatment Plant Classification: Less than 5 points; no
rating (include rating sheet ) . Class I
4 . SIC Code(s): 9999 03 - Orl _ 1Z
Wastewater Code(s) :
Primary : 04
Secondary : U.T ,ct-Duct Bum
5 . MTU Code(s) : 45003

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Page Three
PART III - OTHER PERTINENT INFORMATION
1 . Is this facility being constructed with Construction Grant
Funds or are any public monies involved (municipals only)?
No
2 . Special monitoring or limitations (including toxicity)
requests : None at this time .
3 . Important SOC/JOC or Compliance Schedule dates : N/A
4 . Alternative Analysis Evaluation
a . Spray IrriGation: InsufficiPnt area available .
P
.
b . Connect to regional sewer system: None available .
c . Subsurface: Poor sails .
d. Other disposal options : N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The WWT facilities serving the H. Marshall Noyes Residence
were in excellent operational condition at the time of the site
investigation . Since the Permit was last renewed , there has been
no opportunity for. the permittee to eliminate the discharge. This
facility does not meet the criteria for issuance of a General
Permit since it does not have cascade aeration .
The WLA prepared for this facility reflects limitations more
stringent than those previously assigned. This change is the
result of a reevaluation of the private pond that receives the
discharge and a revised determination of the 7Q10 flow, which is
now estimated to be 0 . 0 cfs . SFR WLA Procedural Guidelines
recommend issuance of a Permit containing GODS and NH1 as N
limitations of 15 . 0 mg/1 and 4 . 0 mg/l , respectively, for
dischargers into ponds having 0 . 0 cfs 7Q10 flow . A dissolved
oxygen limitation of 6 . 0 mg/1 should also be inellidPd. The
existing facilities should be capable of complying with the
revised limitations with the exception of the D . O. limit .
It is recommended that the NPDES Permit for this facility be
renewed .
-�� (- 30 - 93
Sign "ture of eport Preparer Date
Water Quality Regional Supervisor Date

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• • - RATING SCALE FOR CLASSIFICATION OF FACILITIES
///`` _r'�''//=, `, ((/O.r 5"e" /c".''.a^ r os Name of Plant: � � ,k."-�
Owner or Contact Person: Sf-%p l s „K'.%<../.(
Mailing Address: 61:0
6, �,AI'- Uc-rA) rdux2>` Gs,
c .onc,i-� O , ill, c . 28'0 2 c----
County: ()'1l7/.,2///s Telephone: 7, 72 - 6./.S2-
NPDES Permit No. NC00 5-07z Nondisc. Per. No.
IssueDate: Expiration Date: '
Existing Facility < -5 New Facility
I
Rated By: Mic"/YA G• 7i9 k'- �3
y /� fR Date: 0,,, 3
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central Office
ORC Grade
ITEM POINTS ITEM POIr`:
(1) Industrial Pretreatment Units and/or (4) PRIMARY TREATMENT UNITS
Industrial Pretreatment Program (a) Septic Tank (see definition no. 43) (2
(see`delinition No. 33) 4 (b) Imhoff Tank (-5
(2) DESIGN FLOW OF PLANT IN GPD (c) Primary Clarifiers 5
(not applicable to non-contaminated cooling (d) Settling Ponds of Settling Tanks for Inorganic
waters, sludge handling facilities for water Non-toxic Materials (sludge handling facilities
purification plants, totally closed cycle for water purification plants, sand, gravel,
systems (del. No. 11), and facilities stone,. and other mining operations except
consisting only of Item (4) (d) or Items (4) (d) recreational activities such as gem or gold
and (11) (d)) mining) 2
0 — 20,000 A (5)SECONDARY TREATMENT UNITS j
20,001 -- 50.000 2 (a) Carbonaceous Stage
50,001 -- 100,000 3 (i)Aeration - High Purity Oxygen System 20
100,001 — 250,000 4 Diffused Air System 1 d
250,001 -- 500,000 5 Mechanical Air System (fixed,
500.001 --1,000,000 8 floating or rotor) B
1,000,001 --2,000,000 10 Separate Sludge Reaeration 3
2,000,001 (and up) - rate I point additional for each (ii) Trickling Filler
200,000 gpd capacity up to a High Rate 7
maximum of 30 Standard Rate 5
Packed Tower S
Design Flow (gpd) 7^ C� (iii) Biological Aerated Filler or Aerated
Biological Filler 1 0
(iv) Aerated Lagoons 1 0
(v) Rotating Biological Contactors 1 0
•
(3) PRELIMINARY UNITS (see definition no. 32) (vi) Sand Fillers
(a) Bar Screens 1 intermittent biological ?
or recirculating biological 73
(b) Mechanical Screens, Static Screens or (vii) Stabilization Lagoons 5
Comminuting Devices 2 (viii)Clarifier 5
(c) Grit RemovalComminuting 1 (ix) Single stage system for combined
or carbonaceous removal of BOp and
(d) Mechanical or Aerated Grit Removal nitrogenous removal by nitrification
2 (see def. No. 12) (Points for this item
(e) Flow Measuring Device 1 have to be in addition to items (5) (a)
Or
(J) Instrumented Flow Measurement 2 (i) through (5) (a) (viii) 8
(g) Preaeration 2 (x) Nutrientem additions to enhance BOD
removal 5
(h) Influent Flow (xi) Biological Culture ('Super Bugs') addition
Equalization 2 to enhance organic compound removal 5
(f) Grease or Oil Separators • Gravity 2
Mechanical 3
Dissolved Air Flotation. 8
(j) Prechlorination S

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1 b) M.1,-.5:<-,-D,S S'F+J o
(i) Aeration - High Purity Oxygen System 20 (i). Sludge Holding Tank - Aerated - - 5
Diffused Air System 10 't Non-aerated 2
Mechanical Air System (fixed, (j) Sludge Incinerator - {not including activated
floating, or rotor) 8 carbon regeneration) 1 0
Separate Sludge Reaeration 3 (k) Vacuum Filter, Centrifuge or Filter Press or other
(ii) Trickling Filler - similar dewatering devices 1 0
High Rate 7
Standard Rate 5 (8) SLUDGE DISPOSAL (including incinerated ash)
Packed Tower 5 (a)Lagoons
(iii) Biological Aerated Filter or Aerated (b) Land Application (surface and subsurface) 2
Biological Filter 10 (see definition 22a)
(iv) Rotating Biological Contactors 10 -where the facility holds the land app. permit . 10
(v) Sand Filter- -by contracting to a land application operator who
intermittent biological 2 holds the land application permit 2
recirculating biological 3 -land application of sludge by a contractor who does
(vi) Clarifier 5 not hold the permit for the wastewater treatment
facility where the sludge is generated 10
(6) TERTIARY OR ADVANCED TREATMENT UNIT (c) Landlilled (burial)
(a) Activated Carbons Beds - (9) DISINFECTION 5
without carbon regeneration 5 (a) Chlorination 751
with carbon regeneration 15 (b) Dechlorination L
(b) Powdered or Granular Activated Carbon Feed - (c) Ozone 5
without carbon regeneration 5 (d) Radiation 5
with carbon regeneration 15 (10) CHEMICAL ADDITION SYSTEM (S) (See definition No. 9)
(c) Air Stripping 5 (not applicable to chemical additions rated as item
(d) Denitrification Process (separate process) 10 (3) (j), (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
(e) Electrodialysis ,. 5 (9) (a), (9) (b). or (9) (c) 5 points each: List:
(I) Foam Separation 5
(g) Ion Exchange 5 5
(h) Land Application of Treated Effluent . 5
5
(see definition no. 22b) (not applicable for 5
sand, gravel, stone and other similar mining (11) MISCELLANEOUS UNITS
• operations) (a) Holding Ponds, Holding Tanks or Settling Ponds
((i) on agriculturally managed sites (See def. for Organic or Toxic Materials including wastes
No.4) 10 from mining operations containing nitrogen and/or
(ii) by high rate infiltration on non-agriculturally phosphorous compounds in amounts significantly
managed sites (includes rotary distributors greater than is common for domestic wastewater 4
and similar fixed nozzle systems) 4 (b) Effluent Flow Equalization (not applicable to storage
(iii) by subsurface disposal (includes low pressure basins which are inherent in land application systems). 2
pipe systems and gravity systems except at (c) Stage Discharge (not applicable to storage basins
plants consisting of septic tank and nitrifica- inherent in land application systems 5
Lion lines only) 4
(i) Microscreens 5 ...._......_...._ _._._........__.._...._...
(j) Phosphorus Removal byBiological Processes (f) Thermal Power Supply 3
D� (f) Thermal Pollution Control Device 3
(See def. No. 26) 20
(k) Polishing Ponds - without aeration 2
with aeration 5
(I) Post Aeration - cascade 0
diffused or mechanical . . . 5 TOTAL POINTS
(rn) Reverse Osmosis 5
(n) Sand or Mixed-Media Filters - low rate 2
high rate 5 CLASSIFICATION
(o) Treatment processes for removal of metal or
cyanide 15 Class I 5 - 25 Points
(p) Treatment processes for removal of toxic Class II _ 26- 50 Points
materials other than metal or cyanide 15 Class III „_,-,--.,_,-„-_,__„ S1- 65 Points
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Class IV...._...__.__.....__..___.. .. ... 66- Up Points
(7) SLUDGE TREATMENT
• Facilities having a rating of one through lour points, inclusive.
(a) Sludge Digestion Tank - Heated 10 do not require a certified operator. Classification of all other
Aerobic. ... 5 facilities requires a comparable grade operator in responsible
Unhealed 3 charge.
(b) Sludge Stabilization (chemical or thermal) 5
(c) Sludge Drying Beds - Gravity 2 Facilities having an activated sludge process will be assigned
Vacuum Assisted 5 a minimum classification of Class II.
(d) Sludge Etutriation 5
(e) Sludge Conditioner (chemical or thermal) 5 Facilities having treatment processes for the removal of metal
(I) Sludge Thickener(gravity) , 5 or cyanide will be assigned a minimum classification of Class II.
(g) Dissolved Air Flotation Unit
(not applicable to a unit rates as (3) (i) 8 Facilities having treatment processes for the biological removal
(h) Sludge Gas Utilization (including gas storage) . . . . 2 of phosphorus will be assigned a minimum classification of Class
III.