WQ0000193_Final Permit_20020408

Q� WArF Michael F. Easley, Governor
\O� 9oG William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
r
—1 Gregory J. Thorpe, Ph.D., Acting Director
C Division of Water Quality
April 8, 2002
JAMES W. FULTON, JR.
BALD HEAD ISLAND UTILITIES, INC.
PO Box 3069
BALD HEAD ISLAND, NC 28461
Subject: Permit No. WQ0000193
WWTP Expansion
Infiltration Lagoon System
Brunswick County
Dear Mr. Fulton:
In accordance with the application received September 26, 2001 and additional information
received January 9, 2002, we are forwarding herewith Permit No. WQ0000193, dated April 8, 2002, to
Bald Head Island Utilities, Inc. for the construction and continued operation of the subject infiltration
lagoon system.
This permit shall be effective from the date of issuance until March 31, 2007, shall void Permit
No. WQ0000193 issued June 9, 2000, 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.
Please pay particular attention to the following conditions for they were not included in the
previous issuance of this permit:
➢ Condition I.2 — Requires that the Wilmington Regional Office be notified at least 48 hours
prior to start up of the new facilities for an on-site inspection.
➢ Condition I.8 — Stipulates the required buffers that shall be maintained around the wastewater
infiltration lagoons.
➢ Condition II.5 — States that only water generated by customers of Bald Head Island Utilities,
Inc. shall be disposed of in the infiltration lagoons.
➢ Condition 11.6 — The infiltration lagoons shall be restricted from public access.
➢ Condition IH.2 — Has been modified to say 400,000 GPD monthly average and residual
chlorine has been removed from the sampling parameters since chlorination shall be replaced
with UV disinfection.
➢ Condition E11.3 — The address for NDMR submissions has changed since the last permit
issuance.
➢ Condition VI.10 — General condition
Non -Discharge Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
DENR Customer Service Center
An Equal Opportunity Action Employer
Internet httpJ/h2o.enr.state.nc.us/ndpu
Telephone [phone] Fax [phone]
Telephone [phone]
50% recycled/ 10% post -consumer paper
M
11ENit

If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service
Center, Raleigh, North Carolina 27699-6714. 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 any
additional information concerning this matter, please contact Nathaniel Thornburg at [phone]
extension 533. /�
Sincetk ,
,W Gregory J. Thorpe, Ph.D.
cc: Brunswick County Health Department
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Groundwater Section, Central Office
Technical Assistance and Certification Unit
Non -Discharge Compliance/Enforcement Unit
Water Quality Central Files
vammofflffft
Ka

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
INFILTRATION LAGOON 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
Bald Head Island Utilities, Inc.
Brunswick County
FOR THE
construction, modification and continued operation of a 400,000 gallon per day (GPD) wastewater treatment facility
with disposal by infiltration lagoon or spray irrigation (reuse) system (which is permitted under WQ0010834) via
""
construction of a 223,000 gallon flow equalization basin aerated with one (1) 382 cubic feet per minute (CFM) blower,
a screw type mechanical bar screen with bag compactor, one (1) 155,000 gallon Sequencing Batch Reactor (SBR) with
two (2) 382 CFM blowers, two (2) Aqua Disk filters each with a surface area of 215.2 square feet (ft2) and a hydraulic
loading rate up to 3 GPM/ft'`, a backwash pump station with two (2) submersible pumps each rated at 50 gallons per
minute (GPM) at 38 feet of TDH, an ultra -violet (UV) light disinfection system with a redundant back-up system, an
effluent pump station with two (2) submersible pumps each rated at 556 GPM at 20 feet of TDH and a 8 inch magnetic
flow meter that pumps to the 2.04 acre, 0.76 acre and 0.55 acre infiltration lagoons,
modification of the existing two (2) SBRs to achieve a greater cycle capacity (155,000 gallons each) and increase the
existing blowers to 382 CFM, conversion of the existing aerobic digester into three (3) compartments each with a
floating aerator resulting in a cumulative aerobic digester volume of 336,000 gallons with contracted disposal of
approximately 49 dry tons per year of bio -solids with Lewis Farms & Liquid Waste (WQ0000455),
continued operation of the existing and unmodified facilities at the Timber Creek WWTP consisting of an influent
pump station with two (2) submersible pumps each rated at 700 GPM at 43 feet of TDH, a flow meter, a flow splitter
box, and a 28,000 gallon post equalizationlaeration basin with three (3) submersible pumps each rated at 139 GPM and
one (1) floating aerator,
and continued operation of the existing facilities consisting of an influent pump station and equalization basin at the old
Timber Creek WWTP, a manual bar screen, two (2) travelling bridge filters, and gas chlorinator which shall be
decommissioned upon completion of the aforementioned construction and modifications,
to serve Bald Head Island Utilities, Inc., with no discharge of wastes to the surface waters, pursuant to the modification
request received September 26, 2001, and in conformity with the project plan, specifications, and other supporting data
subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of
this permit.
This permit shall be effective from the date of issuance until March 31, 2007, shall void Permit No.
WQ0000193 issued June 9, 2000, and shall be subject to the following specified conditions and limitations:

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, and other supporting materials. If
this project is to be completed in phases and partially certified, you shall retain the responsibility
track further construction approved under the same permit, and shall provide a final certificate of
completion once the entire project has been completed. Mail the Certification to the Non -Discharge
Permitting Unit, Division of Water Quality, 1617 Mail Service Center, Raleigh, NC 27699-1617.
2. The Wilmington Regional Office, telephone number [phone], shall be notified at least forty-
eight (48) hours in advance of operation 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 from
8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
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.
4. Any residuals generated from these treatment facilities must be disposed in accordance with General
Statute 143-215.1 and in a manner approved by the Division.
Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
6. The infiltration lagoon system shall be effectively maintained and operated at all times so that there is
no discharge to the surface waters, nor any contamination of ground waters which will render them
unsatisfactory for normal use. 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 actions that may be required by the Division of Water Quality (Division), such as the
construction of additional or replacement treatment or disposal facilities.
7. This permit shall become voidable if the soils fail to adequately assimilate 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. The ponding of
wastewater on the surface of the distribution field when the dosing cycle commences shall be
considered as evidence of failure of the soils to adequately assimilate the wastewater. Additionally,
such failure shall be interpreted as a violation of this permit condition.
The following buffers shall be maintained:
a) 400 feet between the infiltration lagoon and any residence or places of public assembly under
separate ownership,
b) 150 feet between the infiltration lagoon and property lines,
c) 100 feet between the infiltration lagoon and wells,
d) 100 feet between the infiltration lagoon and drainageways or surface water bodies,
e) 50 feet between the infiltration lagoon and public right of ways,
f) 100 feet between wastewater treatment units and wells, and
g) 50 feet between wastewater treatment units and property lines.
Some of the buffers specified above may not have been included in previous permits for this waste
treatment and disposal system. These buffers are not intended to prohibit or prevent modifications,
which are required by the Division, to improve performance of the existing treatment facility. These
buffers do, however, apply to modifications of the treatment and disposal facilities which are for the
purpose of increasing the flow that is tributary to the facility. These buffers do apply to any
expansion or modification of the spray irrigation areas and apply in instances in which the sale of
property would cause any of the buffers now complied with, for the treatment and disposal facilities,
to be violated. The applicant is advised that any modifications to the existing facilities will require a
permit modification.

9. Adequate measures shall be taken to divert stormwater from the high rate infiltration area and to
prevent wastewater runoff.
II. OPERATION AND MAINTENANCE REQUIREMENTS
The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Water Pollution Control Systems Operators Certification
Commission (WPCSOCC), the Permittee shall employ a certified wastewater treatment plant operator
to be in responsible charge (ORC) of the wastewater treatment facilities. The operator must hold a
certificate of the type and grade at least equivalent to or greater than the classification assigned to the
wastewater treatment facilities by the WPCSOCC. The Permittee must also employ a certified back-
up operator of the appropriate type and grade to comply with the conditions of 15A NCAC 8G .0202.
The ORC of the facility must visit each Class I facility at least weekly and each Class II, III, and IV
facility at least daily, excluding weekends and holidays, and must properly manage and document
daily operation and maintenance of the facility and must comply with all other conditions of 15A
NCAC 8G.0202. Once the facility is classified, the Permittee must submit a letter to the WPCSOCC
which designates the operator in responsible charge within thirty days after the wastewater treatment
facilities are 50% complete.
The facilities shall be effectively maintained and operated as a non -discharge system to prevent the
discharge of any wastewater outside of the infiltration lagoon.
4. Freeboard in the infiltration lagoon shall not be less than two feet at any time.
5. No type of wastewater other than that from Bald Head Island Utilities, Inc. shall be disposed in the
infiltration lagoon.
6. Public access to the infiltration lagoon shall be controlled during active site use. Such controls may
include the posting of signs showing the activities being conducted at each site.
7. The screenings removed from the wastewater treatment plant shall be properly disposed in a sanitary
landfill or by other means that are Division approved.
An automatically activated standby power source shall be on site and operational at all times. If a
generator is employed as an alternate power supply, it shall be tested weekly by interrupting the
primary power source.
9. The flow measurement device shall be calibrated annually by a representative of a firm which is
routinely engaged in the calibration of flow measurement devices. Records of this calibration,
including all information pertinent to the calibration, shall be available during any inspection by
Division staff.
10. The Permittee shall provide for the pump station and force main the following items:
a. Pump on/off elevations located so that 2-8 pumping cycles may be achieved per hour in the
pump station,
b. An air relief valve located at all high points along the force main,
c. A screened vent for the wet well,
d. Fillets located in the wet well at the intersection of the flooring and sidewalls,
e. Three feet of cover (minimum) over the force main or the use of ferrous material where three
feet cannot be maintained,
f. Sufficient devices which will protect the pump station from vandals, and
g. Flood protection if the pump station is located below the 100 -year flood elevation.

11. Diffusers shall be cleaned as needed to ensure that adequate aeration is provided. Records of this
maintenance shall be maintained by the permittee.
III. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring deemed necessary by the Division to insure surface and ground water protection will
be established and an acceptable sampling reporting schedule shall be followed.
2. As an indicator of proper operation and maintenance, the facility shall produce an effluent in
compliance with the following limitations:
Parameter Monthly Average a Daily Maximum c
Flow 400,000 GPD
BOD5 (5 -day, 20°C) 10 mg/l
NH3 as N 4 mg/1
TSS 20 mg/1
Fecal Coliform 14 per 100 mlb 43 per 100 ml
a Monthly averages for all but fecal coliform shall be the arithmetic mean of all samples collected
during the reporting period.
b Monthly average for fecal coliform shall be the geometric mean of all samples collected during the
reporting period.
c Daily maximum shall be the maximum value of all samples collected during the reporting period.
The effluent from the subject facilities shall be monitored, by the Permittee, at the point prior to
discharge to the infiltration lagoon for the following parameters:
Parameter
Sampling Point
Sampling Frequency
Type of Sample
Flow
Influent or Effluent
Continuous
Recording
BODS (5 -day, 20°C)
Effluent
*2/Month
Composite
NH3 as N
Effluent
*2/Month
Composite
TSS
Effluent
*2/Month
Composite
Fecal Coliform
Effluent of first pond
*2/Month
Grab
Settleable Matter
Effluent
Daily
Grab
NO3
Effluent
**Triannually
Grab
TDS
Effluent
**Triannually
Grab
TOC
Effluent
**Triannually
Grab
Chloride
Effluent
**Triannually
Grab
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
2/Month sampling frequency only during the months of April through October. During the
remainder of the year, these parameters shall be monitored monthly.
** Triannually sampling shall be conducted during March, July, and November. 0
If Groundwater sampling indicates or predicts problems with compliance with of the Groundwater
Standards, this permit will be modified to include additional and/or more restrictive limitations.

Three (3) copies of all effluent monitoring data (as specified in condition III 2) on Form NDMR-1
shall be submitted on or before the last day of April, August, and December. All information shall be
submitted to the following address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
4. A record shall be maintained of all residuals removed from this facility. The record shall include the
name of the hauler, the permit authorizing the disposal or a letter from a municipality agreeing to
accept the residuals, the date the residuals were hauled, and the volume of residuals removed.
Influent flow shall be continuously monitored and daily flow values shall be reported on Form
NDMR.
The Permittee shall install an appropriate flow measurement device consistent with approved
engineering and scientific practices to ensure the accuracy and reliability of influent flow
measurement. Flow measurement devices selected shall be capable of measuring flows with a
maximum deviation of less than 10 percent from true flow, accurately calibrated at a minimum of
once per year, and maintained to ensure that the accuracy of the measurements is consistent with the
accepted capability of that type of device. Records of flow measurement device calibration shall be
kept on file by the Permittee for a period of at least three years. At a minimum, data to be included in
this documentation shall be:
a. Date of flow measurement device calibration
b. Name of person performing calibration
C. Percent from true flow
Plans and specifications for the flow measuring device shall be prepared by a licensed Professional
Engineer and submitted to the appropriate regional office 30 days prior to installation. The flow
measuring device shall be installed within 1 year of the date of this permit.
6. A maintenance log shall be maintained at this facility including, but not limited to, the following
items:
a. Daily sampling results including residual chlorine, settleable matter, and dissolved oxygen in the
aeration basin and at the clarifier weir;
b. Visual observations of the plant and plant site;
c. Record of preventative maintenance (changing of filters, adjusting belt tensions, alarm testing,
diffuser inspections and cleanings, etc.);
d. Date of calibration of flow measurement device; and
e. Date and results of power interruption testing on alternate power supply.

7. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910)
395-3900 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;
b. Any process unit failure, due to known or unknown reasons, that renders the facility incapable of
adequate wastewater treatment, such 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 directly to
receiving waters without treatment of all or any portion of the influent to such station or facility;
or
d. Any time that self-monitoring information indicates that the facility is not in compliance with its
permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter form within
five (5) 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 recur.

IV. GROUNDWATER REQUIREMENTS
1. Sampling Criteria:
a) Monitor wells MW -1, MW -2, MW -3, MW -4, MW -5, and MW -6 shall be sampled every
March, July and November for the parameters listed below. Prior to sampling the parameters,
the measurement of water levels must be taken. The depth to water in each well shall be
measured from the surveyed point on the top of the casing. The measuring points (top of well
casing) of all monitoring wells shall be surveyed relative to a common datum.
Water Level
Chloride
Fecal Coliform
Nitrate
Total Phosphorous
pH
Total Dissolved Solid (TDS)
Total Organic Carbon (TOC)
Total Ammonia
Volatile Organic Compounds
(November only)
b) For Total Organic Carbon (TOC), if concentrations greater than 10 mg/1 are detected in any
down -gradient monitoring well, additional sampling and analysis must be conducted to identify
the individual constituents comprising this TOC 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 TOC concentration. Any exceedances of this naturally
occurring TOC concentration in the down -gradient wells shall be subject to the additional
sampling and analysis as described above.
c) For Volatile Organic Compounds (VOCs) sampled in November, use only one of the following
methods:
Standard Method 6230D, Practical Quantitation Limit (PQL) at 0.5 ug/L or less
Standard Method 6210, PQL at 0.5 ug/L or less
EPA Method 8021, Low Concentration, PQL at 0.5 ug/L or less
EPA Method 8260, Low Concentration, PQL at 0.5 ug/L or less
Another method with prior approval by the Groundwater Section Chief.
Any of the referenced methods used for VOCs must at a minimum, include all the constituents
listed in Table VIII of Standard Method 6230D. Any method used must provide a PQL of 0.5
ug/L or less, which must be supported by laboratory proficiency studies as required by the
DWQ Laboratory Certification Unit. Any constituents detected above the Method Detection
Limit (MDL) but below the PQL of 0.5 ug/L must be qualified (estimated) and reported.
d.) Any laboratory selected to analyze parameters must be Division of Water Quality (DWQ)
certified for those parameters required.

2. Reporting / Documentation:
a) All reports and documentation (GW -1, GW -30, GW -59) shall be mailed to the following
address:
Groundwater Section
Permits and Compliance Unit
1636 Mail Service Center
Raleigh, NC 27699-1636
Updated blank forms (GW -1, GW -30, GW -59) may be downloaded from the Groundwater
Section's website at http://gw.ehnr.state.nc.us/ or requested from the address mentioned above.
b) The results of the sampling and analysis must be received on Form GW -59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section (address listed in
the "Reporting / Documentation" section of the Groundwater Requirements), on or before the
last working day of the month following the sampling month. The data of all groundwater
sampling analyses required by the permit conditions must be reported using the most recent
GW -59 form along with attached copies of the laboratory analyses.
3. Applicable Boundaries:
a) The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for the
disposal system individually permitted after December 31, 1983 is established at either 250 feet
from the waste disposal area, or 50 feet within the property boundary, whichever is closest to
the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond the
Compliance Boundary is subject to immediate remediation action according to 15A NCAC 2L
.0106(d)(2).
b) The REVIEW BOUNDARY is established around the disposal systems midway between the
Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of
standards at the Review Boundary shall require action in accordance with 15A NCAC 2L
.0106(d)(1).
V. INSPECTIONS
Adequate inspection, maintenance and cleaning shall be provided by the Permittee to insure proper
operation of the subject facilities.
The Permittee or his designee shall inspect the groundwater recovery and treatment facilities to
prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the
release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall
maintain 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 to the Division or other permitting authority, upon request.
Any duly authorized officer, employee, or representative of the Division may, upon presentation of
credentials, enter and inspect any property, premises or place on or related to the disposal site or
facility at any reasonable time for the purpose of determining compliance with this permit, may
inspect or copy any records that must be maintained under the terms and conditions of this permit,
and may obtain samples of groundwater, surface water, or leachate.

VI. GENERAL CONDITIONS
This permit shall become voidable unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and 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.
This permit is not transferable. In the event there is a 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
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. The subject wastewater treatment and disposal facilities shall be connected to an operational publicly
owned wastewater collection system within 180 days of its availability to the subject facilities, if the
subject wastewater treatment or disposal facilities are in noncompliance with the terms and conditions
of this non -discharge permit or the governing statutes or regulations. Prior to the initiation of these
connection activities, appropriate approval must be received from this Division.
A set of approved plans and specifications for the subject project must be retained by the Permittee
for the life of this project.
6. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee
to an enforcement action by the Division in accordance with North Carolina General Statute 143-
215.6A to 143-215.6C.
7. 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 15A NCAC 211.0205 (c)(4).
8. 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.
9. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its extension.
Upon receipt of the request, the 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.
10. This permit may be modified, or revoked and reissued to incorporate any conditions, limitations and
monitoring requirements the Division of Water Quality deems necessary in order to adequately
protect the environment and public health.
Permit issued this tlai6 8`' day of April, 2002
77z5//
LINA ENVIRONMENTAL MANAGEMENT COMMISSION
/�,Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0000193

Permit No. WQ0000193
April 8, 2002
ENGINEER'S CERTIFICATION
Partial Final
I, , 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,
Project Name
Location and County
for the 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
this permit, the approved plans and specifications, and other supporting materials.
Signature Registration No.
Date
RI

'71 7E 00'
8 �1
J 1 H 1 it Vr lav;. 1 T7 I..HI:VLJl�H
DEPARTNEENT Or NATURAL AND ECONOMIC REESOURCES
RALEIGH. NORTH CAROLINA
723 -24 1 725 :26 57'30••
_ 1 � • � D 1 +�'0 �� '� Gey
.13

CONTACT
WATER POLLUTION CONTROL SYSTEM OPERATORS
CERTIFICATION COMMISSION
CLASSIFICATION
RATING SHEET FOR WATER POLLUTION CONTROL SYSTEMS
FACILITY INFORMATION:
,�,.` • .
NAME OF FACILITY: �LSL
-�'
MAILING ADDRESS:
iI y r
<(c
COUNTY: jj LC -(C -
CONTACT PERSON: � /�( 60LJL-t t CG
PERMIT NO: 0&)w Check One
.
ORC: u w t- t N Cr
f �Yttq r7 t-
TELEPHONE: d l '�)l '-/i�%- 73 t•x 3 `;`
NC WQ HEALTH
TELEPHONE:
RATING INFORMATION: (Before completing this section, please refer to pages 2-4)
PERMITTED FLOW: `?(LOPX11 MGD BNR? YES NOL
CHECK CLASSIFICATION: WASTEWATER: 1 2 3 4 j<
COLLECTION: 1 2 3 4
SPRAY IRRIGATION SUBSURFACE
PHYSICAUCHEMICAL GRADE I
LAND APPLICATION
GRADEII
RATED BY: REGION:DATE:
REGIONAL OFFICE TELEPHONE NUMBER: EXT:

Mil
Classification of B iolo ical Water Pollution Control Treatment Systems:
Grade I Biological WPCS
- Septic tank/sand filter systems
- Biological lagoon systems
- Constructed wetlands and associated appurtenances
Grade II Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
less than or equal to 0.5 million gallons per day (mgd)
Grade III Biological WPCS
- Systems that utilize an activated sludge or fixed growth process with a permitted flow
of greater than 0.5 through 2.5 million gallons per day (mgd)
- Grade II systems that are required to achieve biological nutrient reduction
Grade IV Biological WPCS
Systems that utilizing an activated sludge or fixed growth process with a permitted flow
of greater than 2.5 million gallons per day (mgd)
- Grade III systems that are required to achieve biological nutrient reduction
*Biological Nutrient Reduction -
.The reduction of total nitrogen or total phosphorous by ail activated sludge or fixed growth
`process as required by the facilities permit.
Classification of Collection Water Pollution Control Systems:
(whichever provides lowest grade)
Same grade as biological water pollution control system. Grade of system:
Based on population served:
1,500. or Less = Grade I
1,501 to 15,000 = Grade H
15,001 to 50,000 = Grade III
50,001 or more = Grade IV

Classification of Spray Irrigation Water Pollution Control Systems:
Systems which utilize spray irrigation for the reuse or disposal of wasterwater.
These systems include: septic tanks, sand filter, oil/water separators, lagoons,
storage basins, screening, sedimentation. Systems other than those listed above
shall be subject to additional classification.
-----------------------------------------------------------------------------------------------------------------------
Classification of Land Application of Residuals Systems:
Systems permitted and dedicated for land application of residuals that are produced by a
water pollution control system or contaminated soils.
Classification of Physical/Chemical Water Pollution Control Treatment Systems:
Grade I Physical/Chemical: Any water pollution control system that utilizes a primarily
physical process to treat wastewater. This classification includes groundwater
remediation systems. **
Grade II Physical/Chemical: Any water pollution control system that utilizes a primarily
chemical process to treat wastewater. This classification includes reverse osmosis,
electrodialysis, and ultrafiltration systems. **
**Any water pollution control system that utilizes a phyicaUchemical process to enhance an
activated sludge or fixed growth process, shall not be subject to additional classification.
------------1------------------------------------------------------------------------------------------------------------
Classification of Subsurface Water Pollution Control Systems:
Systems which utilize the soil for subsurface treatment and disposal of wastewater
and/or are required to have a certified operator under 15A NCAC 18A.1961. ***
*** Any subsurface system that has as part of its treatme"iit process a water pollution control
systems that may be classified under Rules .0302. through .0307 of this section shall be
subject to addional classification.

Definitions
Activated Sludge - shall mean a biological wastewater treatment process in which predominantly
biodegradable polluntants in wastewater are absorbed, or adsorbed by living aerobic organisms and
bacteria.
Chemical Process - shall mean a wastewater pollution control system process consisting
exclusively of the addition of chemicals to treat wastewater.
Collection System - shall mean a continuous connections of pipelines, conduits, pumping
stations, and other related constructions used to conduct wastewater to the water pollption
control system.
Electrodialysis System - shall mean a system utlizing a selective separation of dissolved solids
process that is based on electrical charge and diffusion through a semipermeable membrane.
Physical Process - shall mean any water pollution control system process consisting of
electrodialysis, adsorption, absorption, air stripping, gravimetric sedimentation, floation, and
filtration as a means of treatment.
Reverse Osmosis System - shall mean a system which utilizes solutions and semipermable
membranes to separate and treat wastewater.
Ultrafiltration System - shall mean a system which utilizes a membrane filter to remove
pollutants from wastewater.
Water Pollution Control System - shall mean any system for the collection, treatment, or
disposal of wastewater and is classified under the provision of G.S. 90A-37.
Note: Please refer to G.S. 90A-37 for additional information and definitions.
11
� bd