WQ0004082_Final Permit_19910307

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street - Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Mr. William Richardson, County Manager
County of Currituck
Post Office Box 39
Currituck, North Carolina 27929
Dear Mr. Richardson:
George T. Everett,Ph.D,
Director
March 7, 1991
Subject: Permit No. WQ0004082
County of Currituck
Newton Road CDBG Project
Subsurface Disposal System and
Pressure Sewer
Currituck County
In accordance with your application received September 4, 1990, we are forwarding
herewith Permit No. WQ0004082, dated March 7, 1991, to the County of Currituck for the
construction and operation of a pressure sewer collector system and a 15,000 GPD subsurface
wastewater disposal system.
This permit shall be effective from the date of issuance until February 28, 1996, and shall
be subject to the conditions and limitations as specified therein. Please pay particular attention to
the monitoring requirements in this permit. Failure to establish an adequate system for collecting
and maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request an adjudicatory hearing upon written request within 30 days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands
are made this permit shall be final and binding.
One set of approved plans and specifications is being forwarded to you. If you need
additional information concerning this matter, please contact Mr. Dana Bolden at 919/ 733-5083.
r cerely,
George T. Ever tt
CC. Currituck County Health Departmen
Washington Regional Office
Groundwater Section
Training and Certification Unit
Craig B. Morgan and Associates, P.A.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SUBSURFACE DISPOSAL SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
County of Currituck
Currituck County
FOR THE
construction and operation of 42 15 - 50 GPM residential pump stations with single pumps, 24
hour emergency storage capacity, and high water alarms, approximately 1,836 linear feet of three
inch force retain, and approximately 20,636 linear feet of four inch force train and the discharge of
15,000 GPD of collected domestic wastewater into a 15,000 GPD subsurface wastewater disposal
system consisting of an approximate 15,000 gallon septic tank, an approximate 6,000 gallon
dosing tank with eight 236 GPM pumps and approximately 12 hours emergency storage, eight
low pressure pipe fields, each consisting of 20 laterals 100 feet long, five feet on centers to serve
the Newton Road CDBG Area of Currituck County with no discharge of wastes to the surface
waters, pursuant to the application received September 4, 1990 and in conformity with the project
plan, specifications, and other supporting data subsequently filed and approved by the Department
of Environment, Health and Natural Resources and considered a part of this permit.
. This permit shall be effective from the date of issuance until February 28, 1996, and shall
be subject to the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the
permitted facility has been installed in accordance with this permit, the approved
plans and specifications. Mail the certification to the Permits and Engineering Unit,
P.O. Box 27687, Raleigh, NC 27611-7687.
2. The Washington Regional Office, phone no. [phone], shall be notified at
least forty-eight (48) hours in advance of backfilling of the installed facilities so
that an in-place inspection can be made. Such notification to the regional supervisor
shall be made during the normal office hours froze. 8:00 a.m. until 5:00 p.m. on
Monday through Friday, excluding State Holidays.
3. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including
those as may be -required by this Division, such as construction of additional or
replacement wastewater treatment or disposal facilities.

4. The issuance of this permit shall not relieve the Permittee of the responsibility for
damages to surface or groundwaters resulting from the operation of this facility.
5. This permit shall become voidable if the soils fail to adequately absorb the wastes
and may be rescinded unless the facilities are installed, maintained, and operated in
a manner which will protect the assigned water quality standards of the surface
waters and ground waters.
6. Adequate measures shall be taken to divert stormwater from the disposal area and
prevent wastewater runoff from, the subsurface disposal field.
7. The sludge generated from these treatment facilities must be disposed of in
accordance with General Statute 143-215.1 and in a manner approved by the North
Carolina Division of Environmental Management.
8. A usable reserve area shall be maintained for wastewater disposal. The reserve area
shall have the capability of accommodating the average daily flow of the facility
being served without exceeding the loading rates of the reserve area while meeting
all required buffer requirements.
9. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
10. The following buffers shall be maintained:
a) 100 feet between disposal area and any public or private water supply including
wells (applies to all wells, currently in use or not, unless the wells have been
abandoned in accordance with NCAC 15 2C .0113.
b) 100 feet between disposal area and "SA and SB" classified surface waters
c) 50 feet between disposal area and any stream, lake, river or natural drainageway
d) 50 feet between disposal area and property lines
e) 10 feet between disposal area and surface water interceptor drains or diversions
(upslope)
f) 25 feet between disposal area and surface water interceptor drains or diversions
(downslope) and groundwater drainage systems.
11. A leakage test shall be performed on the septic tank and dosing tank to insure that
any exfiltration occurs at a rate which does not exceed twenty (20) gallons per
twenty-four (24) hour per 1,000 gallons of tank capacity. The engineer's
certification will serve as proof of compliance with this condition.
XI. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee
shall employ a certified waster treatment plant operator to be in responsible charge
of the wastewater treatment facilities. The operator must hold a certificate of the
type and grade at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. Within thirty days after the
wastewater treatment facilities are 50% complete, the Permittee must submit a letter
to the Certification Commission which designates the operator in responsible
charge.
3. The application rates to the disposal field shall not exceed 0.20 gallons per day per
square foot.
2

4. The facilities shall be effectively maintained and operated as a non -discharge system
to prevent the disch* of any wastewater resulting from the operation of this
facility.
5. No traffic or equipment shall be allowed on the disposal area except while
installation occurs or while normal maintenance is being performed.
6. A suitable cover shall be maintained on the LPP field(s) and the field(s) shall be
kept mowed. The clippings shall be removed to prevent the build up of thatch.
7. The low pressure lines shall be purged monthly using potable water or air pressure
and the pressure adjusted on the distribution lines to approved specifications.
MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring deemed necessary by the Division of Environmental Management
to insure surface and ground water protection will be established and an acceptable
sampling reporting schedule shall be followed.
2. Adequate records showing all maintenance shall be maintained by the Permittee.
These records should include but are not limited to the following:
Items Inspection Frequency
a) Individual dosing pump operation Weekly
b) Individual field rotation Weekly
c) High water alarms Weekly
d) Residual pressure on highest and
lowest lateral on each subfield Monthly
e) Residual pressure on all laterals Semi-annually
3. Three copies of all operation and maintenance records (as specified in condition Ill
2) and all effluent monitoring data (as specified in condition III 3) shall be
submitted on or before January 31 of the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 27687
Raleigh, NC 27611-7687
5. A record shall be maintained of all residuals removed from this facility. This record
shall include the name of the hauler, permit authorizing the disposal or a letter from,
a municipality agreeing to accept the residuals, date the residuals were hauled, and
volume of residuals removed.
6. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office,
telephone no. [phone], as soon as possible, but in no case more than 24
hours or on the next working day following the occurrence or first knowledge of
the occurrence of any of the following:
a. Any occurrence at the wastewater treatment facility which results in the
treatment of significant amounts of wastes which are abnormal in quantity
or characteristic, such as the dumping of the contents of a basin or tank; the
known passage of a slug of hazardous substance through the facility; or any
other unusual circumstances.
3

b. Any process unit failure, due to known or unknow reasons, that render the
facility incapable of adequate wastewater treatme tuch as mechanical or
electrical failures of pumps, aerators, compressors, etc.
C. Any failure of a pumping station, sewer line, or treatment facility resulting
in a by-pass of all or any portion of the influent to such station or facility.
d. Any time that self-monitoring information indicates that the facility has gone
out of compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in
letter form within 15 days following first knowledge of the occurrence. This report
must outline the actions taken or proposed to be taken to ensure that the problem
does not reoccur.
IV. GROUNDWATER REQUIREMENTS
1. Prior to beginning waste disposal operations, three (3) monitor wells, one (1)
upgradient and two (2) downgradient, shall be installed to monitor groundwater
quality. The well(s) shall be constructed such that the water level in the well is
never above or below the screened (open) portion of the well at any time during the
year. However, the exact location and construction details for these wells shall be
approved by the Washington Regional Office, from, which a well construction
permit must be obtained.
2. The monitoring wells shall be sampled initially after construction and thereafter
every February, June, and October for the following parameters:
NO; (10.0) Ammonia Nitrogen
TDS (500.0) TQC
pH (6.5 - 8.5 Standard Units) Water Level
Chloride (250.0) SO4(250.0)
Total Suspended Solids
Volatile Organic Compounds - In October only (by Method 1 or Method 2
below).
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989.
Method 2: Method 502.2 "Methods For The Determination of Organic Compounds
in Drinking Water", U.S. EPA - 600/4-88/039.
The measurement of water level must be made prior to sampling for the remaining
parameters.
The measuring points (top of well casing) of all monitoring wells shall be surveyed
relative to mean sea level (M.S.L.). The depth of water in each well shall be
measured from the surveyed point on the top of the casing. The water level
elevations shall then be determined relative to M.S.L.
The numbers in parentheses represent the maximum allowable concentrations in
groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise specified, the units
for these concentrations are expressed as milligrams per liter.
0

If TUC concentrations greater than 10 mg/le detected in any downgradient
monitoring well, additional sampling and analy s�nust be conducted to identify the
individual constituents comprising this TQC concentration. If the TOC concentration
as measured in the background monitor well exceeds 10 mg/l, this concentration will
be taken to represent the naturally occurring TQC concentration. Any exceedances
of this naturally occurring TQC concentration in the downgradient wells shall be
subject to the additional sampling and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analyses specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW -59 (Compliance Monitoring Report
Form) every March, July, and November.
3. The Compliance Boundary for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. An exceedance of
Groundwater Quality Standards beyond the Compliance Boundary is subject to
penalty provisions applicable under General Statute 143-215.6(1)a. The sale of
property, by the Permittee, which is within or contiguous to the disposal system site
may alter the location of the Compliance Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the waste disposal area, or 50 feet within
the property boundary,
If the title to any property which may affect the location of the Compliance Boundary
is changed, the Permittee shall notify the DEM Director within 14 days. The
Director shall then establish a modified Compliance Boundary which will be done as
a modification to the Permit.
The REVIEW BOUNDARY for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. A REVIEW BOUNDARY
is established around disposal systems midway between the Compliance Boundary
and the perimeter of the waste disposal area. When the concentration of any
substance equals or exceeds the maximum allowable concentration of that substance
at the REVIEW BOUNDARY, as determined by monitoring, the permittee shall
either (i) demonstrate, through predictive calculations or modeling, that natural site
conditions, facility design and operational controls will prevent a violation of
standards at the Compliance Boundary; or, (ii) submit a plan for the alteration of
existing site conditions, facility design or operational controls that will prevent a
violation of standards at the Compliance Boundary, and implement that plan upon its
approval by the Director.
4. Any additional groundwater quality monitoring as deemed necessary by the Division
of Environmental Management shall be provided.
V . INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee
to insure proper operation of the subject facilities.
0

VI.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal
facilities to prevent malfunctions and deterioration, operator errors and dischargesW4,
which may cause or lead to the release of wastes to the environment, a threat to
human health, or a nuisance. The Permittee shall keep an inspection log or
summary including at least the date and time of inspection, observations made, and
any maintenance, repairs, or corrective actions taken by the Permittee. This log of
inspections shall be maintained by the Permittee for a period of three years from the
date of the inspection and shall be made available upon request to the Division of
Environmental Management or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division of
Environmental Management may, upon presentation of credentials, enter and
inspect any property, premises or place on or related to the disposal site and facility
at any reasonable time for the purpose of determining compliance with this permit;
may inspect or copy any records that must be kept under the terms and conditions
of this permit; or may obtain samples of groundwater, surface water, or leachate.
GENERAL CONDITIONS
This pen -nit shall become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans, specifications and other
supporting data.
2. This permit is effective only with respect to the nature and volume of wastes
described in the application and other supporting data.
3. This permit is not transferable. In the event there is desire for the facilities to
change ownership, or there is a name change of the Permittee, a formal permit
request must be submitted to the Division of Environmental Management
accompanied by an application fee, documentation from the parties involved, and
other supporting materials as may be appropriate. The approval of this request will
be considered on its merits and may or may not be approved.
4. Prior to any transfer of this land, a notice shall be given to the new owner that gives
full details of the materials applied or incorporated at this site.
5. A set of approved plans and specifications for the subject project must be retained
by the applicant for the life of the project.
6. The annual administering and compliance fee must be paid by the Permittee within
thirty (30) days after being billed by the Division. Failure to pay the fee
accordingly may cause the Division to initiate action to revoke this permit as
specified by 15 NCAC 2H.0205 (c)(4).
7. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to an enforcement action by the Division of Environmental
Management in accordance with North Carolina General Statute 143-215.6.
S. The wastewater treatment facility shall connect to a publicly owned areawide
sewage collection system within 180 days of its availability. All discharge of
wastewater to the system shall cease at the time of the connection to the sewerage
collection system.
9. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
0

10. The Permittee, at least six (6) months prior to the expiration of this permit, shall
request its extension. Upon receipt of the request, W�Commission will review the
adequacy of the facilities described therein, and if warranted, will extend the permit
for such period of time and under such conditions and limitations as it may deem
appropriate.
VII. PRESSURE SEWER OPERATION and MAINTENANCE CONDITIONS
1. Construction of the sewers, pump station(s) and force main shall be scheduled so
as not to interrupt service by the existing utilities nor result in an overflow or
bypass discharge of wastewater to the surface waters of the State.
2, The Permittee shall provide for the residential pump stations and force main the
following items:
a. A screened vent for the wet well.
b. Fillets located in the wet well at the intersection of the flooring and sidewalls.
c . Three feet of cover (minimum) over the force main or the use of ferrous material
where three feet cannot be maintained.
d. Sufficient devices which will protect the pump station from vandals.
e. Flood protection if the pump station is located below the 100 -year flood
elevation.
3. The pressure sewer shall be placed a minimum of 100 feet from any wells
(currently in use or not) unless the wells are abandoned in accordance with NCAC
15 2C.01 13. This minimum separation may be reduced to 50 feet to public water
supply wells or 25 feet to private water supply wells where ferrous pipe with joints
equivalent to water main standards is used for sewer construction. The engineer's
certification will serve as proof of compliance with this condition.
Permit issued this the 7th day of March, 1991
TH CAROLINA ENVIRQNMENTAL MANAGEMENT COMMISSION
Y George T. Eve , D1 e for
Division of E - onm al anagernent
By Authority of the nvironmental Management Commission
7

Permit No. WQ0004082
County of Currituck
March 7, 1991
*0
Engineer's Certification
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of
the
project, for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.
Date

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16
ITEM
POINTS
(I)
ITEM
POINTS
Preaeration or Equalization
i
lh)
i)
Grease or Oil Separators -- Gravity . . . . . .
2
(k)
Methanical. . . . . . .
3
(1)
Aerated . . . . . .
5
(j)
Chemical Conditioning . . . . . . . . . . . . . . .
5
(4)
PRIMARY TREATMENT UNITS
Post Aeration - Cascade ... _
0
(a)
Septic Tank (see definition No. 44) . . . . . _ .
Diffused or Mechanical
5
(b)
Imhoff Tank . . . . . . . . . . . . . . . .
pre -Package Unit for Removal of Oil and Grease
30
Primary Clarifiers (including sludge air lifts) . .
5
5
�c)
d)
Settling Ponds or Settling Tanks for Inorganic Non -
Sand or Mixed -Media Filters -- Low Rate . . . . ..
2
Toxic Materials involving a Discharge to the Surface
High Rate
5
(7)
waters (sand, gravel, stone, and other mining operations
(a)
except recreational activities such as gem or gold
10
mining) . . . . . . . . . . . . . . . ..
10
(5)
SECONDARY TREATMENT UNITS
Unheated . . . . . . .
3
(a)
Carbonaceous Stage
Sludge Stabilization (chemical or thermal) . . .
10
(i) Aeration - High Purity Oxygen System . . . .
20
2
Diffused Air 'System . . . . . . . . . .
10
5
Mechanical Air System (fixed, floating or rotor)
8
5
Separate Sludge Reaeration . . . . . . . . .
3
2
(11) Trickling Filter- High Rate . . . . . . . .
7
2
Standard Rate . . . . . .
5
5
Packed Tower . . . . . . .
5
2
(iii) Aerated Lagoons . . . . . . . . . . . . .
IO
Sludge Incinerator (not including activated carbon
(iv) Rotating Biological Contactors (biodisc). . .
10
regeneration) . . . . . .
10
(v) Sand Filters (intermittent biological) . . .
2
vacuum Filter, Centrifuge or Filter Press . . . .
10
(vi Stabilization Lagoons
5
(vii) Clarifier (including sludge air lifts).
5
2
(b)
Nitrogenous Stage
Land Application (surface and subsurface) (see def.
(i) Aeration - High Purity Oxygen System.
20
10
Diffused Air Systems. . . . . . . . . . . .
10
5
(9)
Mechanical Air System (fixed, floating, or rotor)B
Separate Sludge Reaeration . . . _
3
Pre . . . . . . . . . . . . . . . . . . . . . . .
1
(ii) Trickling Filter - High Rate . . . _
7
Int@rmediate . . . . . . . . . . . . . . . .
2
Standard Rate . . . . . .
5
Post . . . . . . . . . . . . . . . . . .
3
Packed Tower. . .
5
Dechlorination. . . . . . . . . . . . . . . .
5
(iii) Rotating, Biological Contactors (biodlsc)
IO
Chlorine or Ozone Generation . _ . . . . . . .
5
(iv) Sand Filter (intermittent biological).. .
2
Radiation . . . . . . . . . . . . . . . . . . .
3
(v) Clarifier (including sludge air lifts) . . .
5
(6)
TERTIARY OR ADVANCED TREATMENT UNITS
(a)
Holding Ponds or Holding Tanks for Inorganic, Non-toxic
(a)
Activated Carbon Beds - Without Carbon regeneration
5
Materials with no Discharge to the Surface Waters
2
With Carbon regeneration.
15
(Sludge handling facilities for water purification
(b)
Powdered or Granular Activated Carbon Feed - Without
plants, sand, gravel, crushed stone and other similar
Carbon regeneration
5
operations --see definition No. 10)
With Carbon regeneration.
15
Holding Ponds or Holding Tanks for Organic or Toxic
(c)
Ammonia Stripping . . . . . . . . . . . .. . . . .
18
Materials with no Discharge to the surface Waters
(d)
Chemical Additions . . . . . . . . . . . .
5
(Any pump, valve, or other mechanical control subject
(e)
Denitrification Process (separate process). . _ .
10
(f)
Electrodialysis . . . . . . . . . . . . . . . . .
5
(g)
Foam Separation . . . . . . . . . . . . . . . . .
5
(h)
Ion Exchange . . . . . . . . . . . . . . . . . . .
5
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16
ITEM
POINTS
(I)
Land Appllcatlon (see definition No. 23b) . . . . .
5
(not applicable for facilities under 10(a) . . . .
( j )
Mi crescreens . . . . . . . . . . . . . . ... . . .
5
(k)
Phosphorus Removal . . . . . . . . . . . . .
20
(1)
Polishing Ponds- Without aeration . . . . . . . .
2
With aeration . _ . _ . . . . . .
5
(m)
Post Aeration - Cascade ... _
0
Diffused or Mechanical
5
(n)
pre -Package Unit for Removal of Oil and Grease
30
(o)
Reverse Osmosis . . . . . . . . . . . . . . ..
5
(p)
Sand or Mixed -Media Filters -- Low Rate . . . . ..
2
High Rate
5
(7)
SLUDGE TREATMENT
(a)
Sludge Digestion Tank -- Heated . . . . . . . .
10
Aerobic . . . . . . . . .
5
Unheated . . . . . . .
3
(b)
Sludge Stabilization (chemical or thermal) . . .
10
( c )
Sludge Drying Beds . . . . . . . . . . . . . . . .
2
(d)
Sludge Elutriation . . . . . . . . . . . .
5
(e)
Sludge Conditioner (chemical or therml) _ . . . .
5
(f)
Sludge Thickener . _ . . _ . .
2
g)
Sludge Gas Utilization (including gas storage). . .
2
h)
Sludge Holding Tank -- Aerated . . . . . . . .
5
Hon -aerated
2
(i)
Sludge Incinerator (not including activated carbon
regeneration) . . . . . .
10
(j}
vacuum Filter, Centrifuge or Filter Press . . . .
10
(8)
SLUDGE DISPOSAL (including incinerated ash)
(a)
Lagoons.
2
(b)
Land Application (surface and subsurface) (see def.
23a) . . . . . . . . . . . . .
10
(c)
Landfilled (burial) . . . . . . . . . . . . . . .
5
(9)
DISINFECTION
a)
Pre . . . . . . . . . . . . . . . . . . . . . . .
1
b)
Int@rmediate . . . . . . . . . . . . . . . .
2
(c)
Post . . . . . . . . . . . . . . . . . .
3
(d)
Dechlorination. . . . . . . . . . . . . . . .
5
(e)
Chlorine or Ozone Generation . _ . . . . . . .
5
(f)
Radiation . . . . . . . . . . . . . . . . . . .
3
(10)
MISCELLANEOUS UNITS
(a)
Holding Ponds or Holding Tanks for Inorganic, Non-toxic
Materials with no Discharge to the Surface Waters
2
(Sludge handling facilities for water purification
plants, sand, gravel, crushed stone and other similar
operations --see definition No. 10)
(b)
Holding Ponds or Holding Tanks for Organic or Toxic
Materials with no Discharge to the surface Waters
4
(Any pump, valve, or other mechanical control subject
to failure creating a potential for bypass or discharge
from the holding ponds or tanks will necessitate a
minimum classification of Class I requiring a certified
operator).
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16

(MISCELLANEOUS UNITS CONTINUED) POINTS
(c) Holding Pond for Effluent Flow Equalization and/or
Stage Discharge . . . . . . . . . . . . . . . . . . 5
d) Effluent Pumps. . . . .
e) In -Plant Pumps (including air lifts). . . . . . . . 2
f) Stand -By Power Supply . . . . . . . . . . . . . . . 3
g) Thermal Pollution Control Device . . . . . . . . . 3
(h) Treatment Processes for Removalof Metal or Cyanide and
other Toxic Materials . . . . . . . . . . . . . . . 30
A Total Points
CLASSIFICATION
1a . . . . . . . . . . . . . . . . 5 - 25 Points
Glass 11 . . . . . . . . . . . . . . . 26 - 50 Points
Class III . . . . . . . . . . . . . . . 51 - 65 Points
Class IY . . . . . . . . . . . . . . . 66 - Up Points
Facilities having a rating of one through four points, inclusive.
do not require a certified operator. Classification of all other
facilities requires a comparable grade operator in responsible charge.
-4-
North CaroIIrid
Divisior of EnvirormentaI Management
Checklist of Facility Components
To be Used In Determing Facility Classification
All information will be printed:
J><o�
Name of Plant ( rwrrr �(w.r't1 e • L., C Q$G
County C / q
Owner or Contact Person�ry WF'//) dotn�i IrCila✓�� /� a" X07!
Mailing Address (/, ,A 7 arf,',tA6/ -7 faL
Street or P.O. Box No. Town or LIty Zip
Permit Num>Uer Information
Construction Status
NPDES Permit No. Please Check:
Existing Facility
Date Issued Upgraded Facility
rI
New Facility
State Permit No. �QDUd y�/ if Upgraded or Hex Facility, Give:
50% Completion Date
Date Issuedf 1005 Completion Date
/(7 LW
Rated by j0r'1 Regional Office C -_dial Date 3 '�
Operator in Responsible Charge / Grade
Design Flow of Plant in GPO J Plant Class
Effective
411/87-1-
ITFM
POINTS
(1)
PRETREATMENT UNITS (see definition No. 34) . . . . . . .
.
(2)
DESIGN FLOW OF PLANT IN GPD (not applicable to non -
contaminated cooling waters and non -discharging systerrt
0 -- 20,000 . . . . . . . . . . . . . .
20,001 -- 50,000 . . . . . . . . . . . . . . . . .
501001 -- 100,000 . . . . . . . . . . . . . . . .
3
100,001 -- 250,000 . . . . . . . . . . . . . . . . .
. 4
5
250,001 -- 500,000 . . . . . . . . . . . . . . . . .
.
8
500.001 -- 1,000,000 . . . . . . . . . . . . . . . . .
.
10
1.000.001 -- 2,000.000 . . . . .
.
2,000,001 (and up) - rate I point additional for each 200.000
GPD capa ity up to a maximum of . .
. 30
Design Flow (GPD):
(3)
PRET-1MI14ARY UNITS (see def nitian No. 3�� •-
3
(a) Influent Pumps (including air lift) . . . . . . . .
. 1
(b) Bar Screens . . . . . . . . . . . . . . . . . . . .
or
(c) Mechanical Screens, Static Screens or Comminuting
Devices . . . . . . . . . . . . . . . . . .
2
. I
(d) Grit Removal or . . . . . . . • • • • • • •
• 2
(e) Mechanical or Aerated Grit Removal . . . . . . . .
•
(f) Flow Measuring.Device or . . . . . . . • • • . . •
• _ 1
(g) Instrumented Flow Measurement . . . . . . . . . .
2
Effective
411/87-1-

(MISCELLAN8OUS UNITS CONTINUED) POINTS
(c) Holding Pond for Effluent Flow Equalization and/or
Stage Discharge . . . . . . . . . . . . . . . . . . 5
(d) Effluent Pumps . . . . . . . . . . . . . . . . . . 3
(e) In -Plant Pumps (including air lifts). . . . . . . . 2
(f) Stand -By Power Supply . . . . . . . . . 3
(g) Thermal Pollution Control Device3
(h) Treatment Processes for Removal of Metal or Cyanide and
other Toxic Materials . . . . .. . . . . . . . . . . 30
Total Points 1y
CLASSIFICATION
Class I . . . . . . . . . . . . . 5 - 25 Points
II . . . . . . . . . . . . . 26 - 50 Points
Class III . . . . . . . . . . . . . . . 51 - 65 Points
Class IY . . . . . . . . . . . . 66 - Up Points
Facilities having a rating of one through four points, inclusive,
do not require a certified operator. Classification of all other
facilities requires a comparable grade operator in responsible charge.
North Carolina
Division of Environmental Management
Checklist of Facility Components
To be Used In Determing Facility Classifications
All information will be printed:
�f� �n c,
Name of Plant leirGy�OGf
County ed
Owner or Contact Person . G✓ �ih s in3
I I e I ephone,
Mailing Address u e 7
Street or P.O. Box No. Town or City zip
Permit Number Information Construction Status
NPDES Permit No. Please Check:
Existing Facility
Date Issued Upgraded Facility
c New Facility
State Permit No. LVM/ If Upgraded or New Facility, Give:
50% Completion Date
Date Issued1" p 100% Completion Date
v
Rated by Q X/1 a YN ,Regional Officel� l4 I Date
Operator in Responsible Charge
Design Flow of Plant in GPD
ITEM
Grade
ant Class
POINTS
(1)
PRETREATMENT UNITS (see definition No. 34) . . . . . . 2
(2)
DESIGN FLOW OF PLANT IN GPD (not applicable to non -
contaminated cooling waters and non -discharging systems
0 -- 20,DOU . . . . . . . . . . . . . . . . . . 1
20,001 -- 50,000 . . . . . . . . . . . . . . . . . 2
50,001 -- 100,000 . . . . • . . . . . . . . . . . . .3
100,001 -- 250,000 . . . . . . . . . . . . . . . . . .4
250,001 -- 500,000 . . . . . . . . . . . . . . . . . .5
500,001 -- 1,000,000 . . . . . . . . . . . . . . . . . .8
1,000,001 -- 2,000,000 10
2,000,001 (and up) - rate 1 point additional for each 200,000
GPO capacity up to a maximum of . . . 30
Design Flow (GPD).-
GPD):(3)
(3)
PRELIMINARY UNITS (see definition No. 3 . . . . . . . ..
(a) influent Pumps (including air lift) . . . . . . . . . 3
(b) Bar Screens . . . . . . . . . . . . . . . . . . . . . 1
or
(c) Mechanical Screens, Static Screens or Comminuting
Devices. . < . . . . . . . . . . . . . . . . .2
(d) Grit Removal or . . . . . . . . . . 1
(e) Mechanical or Aerated Grit Removal . . . . . . . 2
(f) Flow Measuring Device or . . . . . . . . . . . . i
(g) Instrumented Flow Measurement . . . . . . . . . . . . 2
-4- Effective
4/1/87 -1-

(4)
(5)
(6)
ITEM
POINTS
(h)
Preaeration or Equalization . . . . . . . . . .
I
(i)
Grease or Oil Separators -- Gravity . . . . . .
2
Land Application (see definition No. 23b) . . . . .
Mechanical. . . . . . .
3
Aerated . . . . . . . .
5
(j)
Chemical Conditioning . . . . . . . . . . . . . . .
5
PRIMARY TREATMENT UNITS
(a)
Septic Tank (see definition No. 44) . . . . . .
2
(b)
Imhoff Tank . .
3
2
Primary Clarifiers (including sludge air lifts) . .
5
�c)
d)
Settling Pouds or Settling Tanks for Inorganic Non -
(m)
Toxic Materials Involving a Discharge to the Surface
0
waters (sand, gravel, stone, and other mining operations
Diffused or Mechanical . . . .
5
except recreational activities such as gem or gold
(n)
Pre -Package Unit for Removal of Oil and Grease
mining) . . . . . . . . . . . . . . . ..
10
SECONDARY TREATMENT UNITS
Reverse Osmosis . . . . . ..
(a)
Carbonaceous Stage
(p)
Sand or Mixed -Media Filters -- Lor hate ..
(i) Aeration - High Purity Oxygen System . . . .
20
Diffused Air System . . . _
10
(7)
Mechanical Air System (fixed, floating or rotor)
B
Separate Sludge Reaeration . . . . . . . . .
3
10
(ii) Trickling Filter - High Rate . . . . . . . .
7
Aerobic . . . . . . . . .
Standard Rate . . . . . .
5
Packed Tower . . . . . . .
5
(iii) Aerated Lagoons . . . . .
10
10
(iv) Rotating Biological Contactors (biodisc). . .
10
Sludge Drying Beds . . . . . . . . . . . . . . .
(v) Sand Filters (intermittent biological) . . .
2
(d)
(vi) Stabilization Lagoons
5
(vii) Clarifier (including sludge air lifts). _
5
(b)
Nitrogenous Stage
(f)
Sludge Thickener . . . . .
(i) Aeration - High Purity Oxygen System. . . . .
20
Diffused Air Systems. . .
10
Mechanical Air System (fixed, floating, or rotor)B
Sludge Holding Tank -- Aerated . . . . . . . .
Separate Sludge Reaeration . . . . . . . . .
3
(ii) Trickling Filter - High Rate . . . . . . . .
7
Standard Rate . . . . . .
5
Packed Tower. . . . .
5
regeneration) . . . . . .
Rotating Biological Contactors (biodisc) . .
10
(j)
(iv) Sand Filter (intermittent biological). . . .
2
(8)
(v) Clarifier (including sludge air lifts)
5
TERTIARY OR ADVANCED TREATMENT UNITS
(a)
(a)
Activated Carbon Beds - Without Carbon regeneration
5
(b)
With Carbon regeneration.
15
(b)
Powdered or Granular Activated Carbon Feed - Without
23a) . . . . . . . . . . . . .�
Carbon regeneration
5
Landfilled (burial) . . . . . . . . . . . . . . .
With Carbon regeneration.
15
(c)
Ammonia Stripping . . . . . . . . . . . . . . . .
18
(d)
Chemical Additions5
Pre . . . . . . . . . . . . . . . . . . . .
(e)
9enitrification Process (sepate process). . . .
ar
10
(f)
Electrodialysis . . . . . . . . . . . . . . . . .
5
(g)
Foam Separation . . . . . . . . . . . . . . . . .
5
(h)
Ion Exchange . . . . . . . . . . . . . . . . . . .
5
-2-
-3-
ITEM
POINTS
(i)
Land Application (see definition No. 23b) . . . . .
5
(not applicable for facilities under 10(a) . . . .
( j )
Mi cros creens _ . . . . . . . . . . . ... . . .
5
(k)
Phosphorus Removal . . . . . . . . . . . .
20
(1)
Polishing Ponds- Without aeration . . . . . . . .
2
With aeration . . . . . . . . . .
5
(m)
Post Aeration - Cascade. . . . . .
0
Diffused or Mechanical . . . .
5
(n)
Pre -Package Unit for Removal of Oil and Grease
30
(o)
Reverse Osmosis . . . . . ..
5
(p)
Sand or Mixed -Media Filters -- Lor hate ..
2
High Rate ..
5
(7)
SLUDGE TREATMENT
(a)
Sludge Digestion Tank -- Heated . . . . . .
10
Aerobic . . . . . . . . .
5
Unheated . . . .
3
(b)
Sludge Stabilization (chemical or thermal) . . . .
10
(c)
Sludge Drying Beds . . . . . . . . . . . . . . .
2
(d)
Sludge Elutriation . . . . .
5
(e)
Sludge Conditioner (chemical or thermal)
5
(f)
Sludge Thickener . . . . .
2
Sludge Gas Utilization (including gas storage). . .
2
�g)
h)
Sludge Holding Tank -- Aerated . . . . . . . .
5
Non-aerated
2
(i)
Sludge incinerator (not including activated carbon
regeneration) . . . . . .
10
(j)
Vacuum Filter. Centrifuge or Filter Press . _ . _
10
(8)
SLUDGE DISPOSAL (including incinerated ash)
(a)
Lagoons2
(b)
Land Application (surface and subsurface) -(see def.
23a) . . . . . . . . . . . . .�
(c)
Landfilled (burial) . . . . . . . . . . . . . . .
5
(9)
DISINFECTION
(a)
Pre . . . . . . . . . . . . . . . . . . . .
I
(b)
Intermediate . . . . . . . . . . . . . . . . . .
2
{c)
Post . . . . . . . . . . . . . . . . . . . . . .
3
(d)
Dechlorination . . . . . . . . . . . . . . . . . .
5
(e)
Chlorine or 07one Generation . . . . . . . . . .
5
(f)
Radiation . . . . . . . . . . . . . . . . .
3
(10)
MISCELLANEOUS UNITS
(a)
Holding Ponds or Holding Tanks for Inorganic, Non-toxic
Materials with no Discharge to the Surface Waters
2
(Sludge handling facilities for water purification
plants, sand, gravel, crushed stone and other similar
operations --see definition No. 10)
(b)
Holding Ponds or Holding Tanks for Organic or Toxic
Materials with no Discharge to the surface Waters
4
(Any pump, valve, or other mechanical control subject
to failure creating a potential for bypass or discharge
from the holding ponds or tanks will necessitate a
minimum classification of Class I requiring a certified
operator).
-3-