NCG550182_Staff Report_19921210

•
RECEIVED
DEC 1 0
SOC PRIORITY PROJECT: Yes No X
If Yes , SOC No .
TECHNICAL SI
To: Permits and Engineering Unit
Water Quality Section
Attention: Mack Wiggins
Date : December 7 , 1992
NPDES STAFF REPORT AND RECOMMENDATION
County : Alexander
Permit N o . #eOG3558.9f6-
1JC;G-550l8
PART I - GENERAL INFORMATION
1 . Facility and Address : Moretz Residence
Dewitt C . Moretz
Route 5 , Box 1530
Hickory, North Carolina 28601
2 . Date of Investigation: December 4 , 1992
3 . Report Prepared By : Allen Hardy , Environmental Engineer I
4 . Persons Contacted and Telephone Number : No one
5 . Directions to Site : From the junction of S. R. 1143 (Hubbard
Rd. ) and S. R. 1144 ( Icard Ridge Rd. ) , travel south on S . R.
1144 approximately 0 . 4 mile and turn left onto S . R. 1203
(Lakeside Loop) . Travel approximately 200 feet and turn left
onto a paved access drive . The Moretz residence is the second
house on the right (cream colored A-frame) .
6 . Discharge Point(s) . List for all discharge points :
Latitude : 35° 48 ' 44" Longitude : 81° 19 ' 54"
Attach a U. S .G . S . map extract and indicate treatment facility
site and discharge point on map.
U . S .G. S . Quad No. : D 13 SE U. S.G. S . Name : Bethelem, N. C.
7 . Site size and expansion are consistent with application?
Yes X No If No, explain:
8 . Topography (relationship to flood plain included) : The
terrain is rolling with slopes from 5-15%. The wastewater
treatment plant is not in the flood plain.

9 . Location of nearest dwelling : The nearest dwelling is
approximately 30 feet from the treatment plant .
10 . Receiving stream or affected surface waters : Isaac Creek
(Lake Hickory)
a . Classification : WS-IV & B CA
b. River Basin and Subbasin No. : Catawba 030832
c . Describe receiving stream features and pertinent
downstream uses : The receiving stream is a cove of Lake
Hickory . The lake contains a good flow at all times .
Frequent human contact through recreational activities
(i . e . skiing, swimming, boating, etc . ) are common. No
water supply intakes are in the immediate (2-3 miles
downstream) area .
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1 . a . Volume of wastewater to be permitted: . 001 MGD (Ultimate
Design Capacity)
b. What is the current permitted capacity of the wastewater
treatment facility? . 001 MGD
c . Actual treatment capacity of the current facility
(current design capacity)? . 001 MGD
d . Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years : N/A
e . Please provide a description of existing or substantially
constructed wastewater treatment facilities : The
existing activated sludge wastewater treatment plant
consists of an influent settling chamber , aeration
chamber, a final settling chamber and tablet
disinfection.
f . Please provide a description of proposed wastewater
treatment facilities : N/A
g . Possible toxic impacts to surface waters : N/A
h. Pretreatment Program (POTWs only) : N/A
in development : approved:
should be required: not needed:
NPDES Permit Staff Report
Version 10/92
Page 2

2 . Residuals handling and utilization/disposal scheme: N/A
a . If residuals are being land applied, please specify DEM
permit no. :
Residuals Contractor :
Telephone No . :
b. Residuals stabilization: PSRP:
PFRP :
Other :
c . Landfill : N/A
d . Other disposal/utilization scheme (specify) : Septage
hauler is contracted as needed .
3 . Treatment plant classification (attach completed rating
sheet) : Class II
4 . SIC Code(s) : 9999
Wastewater Code(s) of actual wastewater , not particular
facilities , i . e. , non-contact cooling water discharge from a
metal plating company would be 14 , not 56 .
Primary: 04 Secondary :
Main Treatment Unit Code: 06
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 : No
3 . Important SOC, JOC or Compliance Schedule dates : (please
indicate)
Date
Submission of Plans and Specifications N/A
Begin Construction N/A
Complete Construction N/A
4 . Alternative Analysis Evaluation: Has the facility evaluated
all of the non-discharge options available . Please provide
regional perspective for each option evaluated.
NPDES Permit Staff Report
Version 10/92
Page 3
�l 1

Spray Irrigation: Viable if obtainable.
Connection to Regional Sewer System: Viable if obtainable .
Subsurface : Viable if obtainable.
Other Disposal Options : N/A
5 . Other Special Items : N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant , Dewitt Moretz , has applied to renew the permit
which allows the discharge of treated domestic wastewater into a
cove of Lake Hickory . The applicant was issued a permit effective
April 1 , 1988 which required monitoring to be completed quarterly .
As of this report date no monitoring has been received by this
Office.
Due to the treatment units being underground an on-site
inspection can not reveal treatment unit effectiveness , especially
if no monitoring has been completed. However, the chlorination
unit contained chlorine tablets .
It appears that the facility had an active status in the
State ' s tracking system but was classified as special and this
Office had yet to conduct a compliance inspection. This Office
will contact the appropriate persons in Raleigh to change the
tracking to active and the proper notifications (NOV's) can begin
being sent upon failure to submit self-monitoring. This Office is
going to send a NOV to the permittee .
It is recommended that the permit be renewed.
A _f
Signature of Report ateparer
Water Quality gional Supervisor
NPDES Permit Staff Report
Version 10/92
Page 4

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• Name of Plant: � c\ o iicc
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Owner or Contact Person: fle ,U, t'N -‹•-1 t
Mailing Address: L,f12-4-, 5 'g�k I S?fl
County: AAe ,4 d-c T Telephone: (-1A+-) 4qy - 1 25
NPDES Permit No. NCO() 509(,2 Nondisc. Per. No.
IssueDate: AcpY, ( 1 I 'ICI Expiration Date: ✓Ng,rc.A 31 , t c193
Existing Facility New Facility
Rated By: Allee, .4�o,rc1y Date: DD<<--,)s-- '7 (G92
Reviewed (Train. & Cert.) I Reg. Office
Reviewed (Train. & Cert.) Central Office
ORC Grade
Plant Class: (circle one) I dp Ill IV Total Points 2(0
ITEM POINTS (5)SECONDARY TREATMENT UNITS
(a) Carbonacec_s Stage
(1) Industrial Pretreatment Units and/or (i)Aeration - High Purity Oxygen System 20
Industrial Pretreatment Program Diffused Air System i�
(see definition No. 33) 4 •
Mechanical Air System (fixed,
(2) DESIGN FLOW OF PLANT IN GPD
floating or rotor) a
(not applicable to non-contaminated cooling waters, sludge Separate Sludge Reaeration 3
handling facilities for water purification plants, totally i (ii) Trickling Filter
closed cycle systems (del. No. 11), and facilities High Rate 7
consisting only of Item (4) (d) or Items (4) (d) and (11) (d)) Standard Rate 5
0 -- 20,000 1 Packed Tower
20,001 -- 50,000 2 5
50,001 -- 100,000 3 (iii) Biological Aerated Filter or Aerated
100,001 -- 1 0,000 Biological Filter 1 0
4 (iv) Aerated Lagoons
250,001 -- 500,000 5
10
500,001 --1,000,000 8 (v) Rotating Biological Contactors 1 0
1,000,001 --2,000,000 10
2,000,001 (and up) - rate 1 point additional for each - (vi) Sand Filters-
200,000 gpd capacity up to a intermittent biological 2
maximum of 30 recirculating biological 3
Design Flow (gpd) : 1 OOP
(3) PRELIMINARY UNITS (see definition no. 32) (vii) Stabilization Lagoons
(a) Bar Screens (viii)Cfzrilier
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 to be in addition to items (5) (a)
or (i) through (5) (a) (viii) 8
(d) Mechanical or Aerated Grit Removal 2 (x) Nutrient additions to enhance BOD
(e) Flow Measuring Device 1
removal 5
o r
(xi) Biological Culture ('Super Bugs') addition
2
(f) Instrumented Flow Measurement to enhance compound organic removal 5
(b) Nitrogenous
Preaeration 2g
Stage
(h) Influent Flow Equalization 2 (i) Aeration - High Purity Oxygen System 20
Diffused Air System 10
(i) Grease or Oil Separators - Gravity 2 Mechanical Air System (fixed,
Mechanical 3 floating, or rotor) 8
Dissolved Air Flotation. 8 Separate Sludge Reaeration 3
(j) Prechlorinalion 5
(ii) Trickling Filter -
High Rate 7
(4) PRIMARY TREATMENT UNITS Standard Rate 5
(a) Septic Tank(see definition no. 43) 2 Packed Tower 5
(b) Imhoff Tank 5
(c) Primary Clarifiers CD Biological
Biological Aerated Filler or Aerated
Biological Filter 1 0
(d) Settling Ponds or Settling Tanks for Inorganic (iv) Rotatinp Biological Contactors 10
Non-toxic Materials (sludge handling facilities (v) Sand Filter- 1
for water purification plants, sand, gravel, intermittent biological 2
stone, and other mining operations except
recreational activities such as gem or gold recirculating biological 3
(vi) Clarifier 5 mining) 2

(6) TERTIARY OR ADVANCED TREATMENT UNIT (10) -HEM'ICAL ADDITION SYSTEM (S){See definition No. 9)
<a) Activated Carbons Beds - (nqt applicable to chemical additions rated as item *.
without carbon regeneration 5
with carbon regeneration 1 5 (3) (IL (5) (a) (xi), (6) (a). (6) (b), (7) (b), (7) (e),
(b) Powdered or Granular Activated Carbon Feed - (9) (a), (9) (b), or {9) (c) 5 points each: List
without carbon regeneration 5 5
with carbon regeneration 1 5 5
(c) Air Stripping 5 5
(d) Denitrification Process (separate process) 1 0 5
(e) Electrodialysis 5 (11) MISCELLANEOUS UNITS
(I) Foam Separation 5 (a) Holding Ponds, Holding Tanks or Settling Ponds
(g) ton Exchange 5 for Organic or Toxic Materials including wastes
(h) Land Application of Treated Effluent
(see definition no. 22b) (not applicable for from mining operations containing nitrogen and/or
sand, gravel, stone and other similar mining phosphorous compounds in amounts significantly
greater than is common for domestic wastewater 4
operations) (b) Effluent Flow Equalization (not applicable to storage
(i) on agriculturally managed sites (See def. basins which are inherent in land application systems). 2
No.4) 1 0
(ii) by high rate infiltration on non-agriculturally (c) Stage Discharge application(not syapplicstems
to storage basins
inherent in land systems 5
managed sites (includes rotary distributors (d) Pumps _ 3
and similar fixed nozzle systems) 4 (e) Stand-By Power Supply 3
(iii) by subsurface disposal (includes low pressure (I) Thermal Pollution Control Device' 3
pipe systems and gravity systems except at
plants consisting of septic tank and nitrifica-
tion lines only) _ 4
TOTAL POINTS Z f0
(i) Microscreens 5
(j) Phosphorus Removal by Biological Processes CLASSIFICATION
(See def.No.26) 2 0
(k) Polishing Ponds - without aeration 2 Class I 5 - 25 Points
- with aeration 5 Class II 26- 50 Points
(I) Post Aeration - cascade 0 Class Ill 51- 65 Points
diffused or mechanical . . . 5 Class IV . 66- Up Points
(m) Reverse Osmosis 5
(n) Sand or Mixed-Media Fitters - low rate 2 Facilities having a rating of one throuoh four points, inclusive,
high rale 5 do not require a certified operator. Classification of all other
(o) Treatment processes for removal of 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 1 5 Facilities having an activated sludge process will be assigned
a minimum classification of Class II.
SLUDGE TREATMENT Facilities having treatment processes for the removal of metal
(a) Sludge Digestion Tank - Heated 1 0 or cyanide will be assigned a minimum classification of Class II.
Aerobic 5
Unheated 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 III
Vacuum Assisted 5
(d) Sludge Elutriation 5 In-plant processes and related control equipment which are an
(e) Sludge Conditioner (chemical 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 to a unit rates as (3) (i) 8 rating.
(h) Sludge Gas Utilization (including gas storage) . . . . 2
(i) Sludge Holding Tank - Aerated 5 ADDITIONAL COMMENTS;
Non-aerated 2
(j) Sludge Incinerator - (not including activated
carbon regeneration) 1 0
(k) Vacuum Filler, Centrifuge or Filter Press or other
similar dewalering devices 1 0
(9) SLUDGE DISPOSAL (including incinerated ash)
(a) Lagoons 2
(b) Land Application (surface and subsurface)
lsee definition 22a)
• • • -where the facility holds the land app. permit . . . 10
-by contracting to a land application operator who
holds the land application permit 2
-land application of sludge by a contractor who does
not hold the permit for the wastewater treatment
facility where the stooge is generated 1 0
(c) Landlitled(burial) 5
(9) DISINFECTION
(a) Chlorination ' 5 J
(b) Dechlorination 5
(c) Ozone 5
(d) Radiation 5