WQ0012203_Final Permit_19960513

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
May 13, 1996
Ms. Michelle M. Gregor, Engineering Department
City of Charlotte
600 East Fourth Street
Charlotte, North Carolina 28202
Dear Ms. Gregor:
LTI-.V;WA
EDEHNFi
Subject: Permit No. WQ0012203
City of Charlotte
Fire Station Number 9
Groundwater Remediation Facilities
Mecklenburg County
In accordance with your application received March 21, 1996, we are forwarding herewith Permit
No. WQ0012203, dated May 13, 1996, to the City of Charlotte for the construction and operation of the
subject groundwater remediation facility.
This permit shall be effective from the date of issuance until April 30, 2001, 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, 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, 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 have any questions
concerning the Groundwater Conditions or groundwater monitoring requirements, please contact Brian
Wootton in the Groundwater Section at [phone]. If you need any additional information
concerning this matter, please contact Mr. Mich len at [phone] extension 547.
Sincerely,
A. Presto, oward, Jr., E.
cc: Mecklenburg County Health Department
Professional Service Industries, Inc.
Mooresville Regional Office, Water Quality Section
Mooresville Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
GROUNDWATER REMEDIATION 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 THE
City of Charlotte
Mecklenburg County
FOR THE
construction and operation of a 2800 GPD groundwater remediation facility consisting of three (3) 6-inch
diameter recovery wells, low profile air strippers, granular activated carbon, and a 125 foot long by 20
foot wide by 5 foot deep infiltration gallery to serve the City of Charlotte's Fire Station Number 9, with no
discharge of wastes to the surface waters, pursuant to the application received March 21, 1996, 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 April 30, 2001, 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, and other supporting materials. Mail the Certification to the Water Quality
Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535.
2. The Mooresville Regional Office, telephone number (704) 663=1699, 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.
3. 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.

4. 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 this Division, such as the construction of additional or
replacement treatment or disposal facilities.
5. 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.
6. 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 North Carolina Division of
Environmental Management.
7. Diversion or bypassing of the untreated groundwater from the treatment facilities is
prohibited.
11. 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 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 Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class 11, 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 Title 15A, Chapter 8A, .0202, Once
the facility is classified, the Permittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 507o complete.
3. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
111. MONITORING AND REPORTING REQUIREMENTS.
I . 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. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone
number [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;
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.
I V . GROUNDWATER- REQUIREMENTS
1. The bottom of the infiltration bed (gallery) shall not exceed five (5) feet below land surface.
2. Within 90 days of permit issuance, three (3) recovery wells, designated as RW-1, RW-2,
and RW-3 shall be installed as specified in the permit application. Also, one (1) monitor
well, designated as MW-10, shall be installed to monitor groundwater quality. The
monitor well 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. The general
location and name for each well is marked on Attachment A. The recovery wells and the
new monitoring well shall be constructed in accordance with this permit, and approved by
the Mooresville Regional Office. A well construction permit will be required for the three
proposed recovery wells. Please contact the Mooresville Regional Office - Groundwater
Section [telephone number [phone]] for the recovery well permit applications,
3. The Mooresville Regional Office, telephone number [phone], shall be notified at
least forty-eight (48) hours prior to the construction of any recovery/monitoring well(s) so
that an inspection can be made of the monitoring well location. Such notification to the
regional groundwater 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.
4. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than V:100') signed and
sealed by a professional engineer or a state licensed land surveyor that indicates all of the
following information:
a. the location and identity of each monitoring well,
b. the location and 'identity of each recovery well,
c. the location of the waste disposal system,
d. the location of all property boundaries,
e. the latitude and longitude of the established horizontal control monument,
f. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"),
g. the depth of water below the measuring point at the time the measuring point is
established, and
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal positional accuracy of +/- 10 feet. All other features listed in a.
through e. above shall be surveyed relative to this horizontal control monument. The
positional accuracy of features listed in a. through e. above shall have a ratio .of precision
not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any
features located by the radial method will be located from a minimum of two points.
Horizontal control monument shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities that may take place on
3

the property, The map shall also be surveyed using the North American Datum of 1983
coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. if a Global Positioning System
(GPS) is used to determine the latitude and longitude of the horizontal control monument, a
GPS receiver that has the capability to perform differential GPS shall be used and all data
collected by the GPS receiver will be differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Environmental Management P.O. Box 29578 Raleigh, N.C. 27626-
0578,
5. Upon completion of all well construction activities, a certification must be received from a
professional engineer certifying that the monitoring wells are located and constructed in
accordance with the Well Construction Standards (15A NCAC 2C) and this permit. This
certification should be submitted with copies of the Well Completion Form (GW-1) for
each well. Mail this certification and the associated GW-1 forms to the Permits and
Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578.
6. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall
submit a copy of the GW-i Form (Well Completion Form) with the Compliance
Monitoring Form (GW-59) for that well. Compliance Monitoring Forms that do not
include copies of the GW-1 form will be returned to the permittee without being processed.
Failure to submit these forms as required by this permit may result in the initiation of
enforcement activities pursuant to NC General Statutes 143-215.6.
7. All wells that are constructed for purposes of groundwater monitoring shall be constructed
in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than
Water Supply) and any other state and local laws and regulations pertaining to well
construction.
8. The monitor well designated as monitor wells MW-10, and existing monitor wells MW-1,
MW-4, and MW-5 (depicted on Attachment A), shall be sampled every February, May,
August, and November for the following parameters:
Water Level
EPA Method 602 - Purgeable Aromatics + MTBE
EPA Method 601 - Polynuclear Aromatic Hydrocarbons
EPA Method 504.1 - Ethylene Dibromide
The measurement of water levels must be made prior to sampling for the remaining
parameters. 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 to
provide the relative elevation of the measuring point for each monitoring well.
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on Form GW-59
[Compliance Monitoring Report Form] every March, June, September, and December.
9. The influent and effluent from the treatment system shall be sampled once every two (2)
weeks for the first three (3) months and monthly thereafter for the parameters specified
below:
EPA Method 602 - Purgeable Aromatics + MTBE
EPA Method 601 - Polynuclear Aromatic Hydrocarbons
EPA Method 504.1 - Ethylene Dibromide
4

The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 within 30 days of
sample collection.
10. Isoconcentration (lines connecting points of equal concentration) maps in the horizontal
directions shall be developed for each constituent detected, from the groundwater
monitoring data following each quarterly sampling event. A water level contour map must
also be developed on a quarterly basis. These maps shall be submitted along with other
groundwater monitoring data (GW-59 forms) for that period.
11. Flow measurement devices shall be installed to monitor the volumes pumped at each
recovery well. This information shall be tabulated and submitted with the rest of the
monitoring data on a quarterly basis.
12. The groundwater recovery, treatment and disposal system shall be inspected weekly. If it
is determined that the system is malfunctioning, all repairs should be made as soon as
possible and reported to the Groundwater Supervisor at the Mooresville Regional Office,
telephone number [phone], within 48 hours.
13. The groundwater treatment system shall consistently achieve a treatment efficiency which
insures that waters discharged to the infiltration gallery is at or below Groundwater 2L
Standards. If the treatment system fails to consistently achieve this standard, additional
treatment units or changes in operational methods, may be required.
14. All components of the groundwater recovery, treatment, and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system.
15. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31, 1983 is established at either (1) 250
feet from the waste disposal area, or (2) 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 in addition to
the penalty provisions applicable under General Statute 143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a 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
remediation action on the part of the permittee.
16. Any additional groundwater quality monitoring, as deemed necessary by the Division, 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.
2. 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 of Environmental Management or other permitting authority, upon request.
5

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 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
Issuance of this permit does not constitute approval for reimbursement from the Leaking
Petroleum Underground Storage Tank Cleanup Funds (15A NCAC 2P)_
2. 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.
3. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
4. 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 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.
5. 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 of Environmental Management in
accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c).
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 2H .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.
Permit issued this the thirteenth day of May, 1996
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston H ard, Jr., P.E., irector
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit Number WQ001.2203
0

Permit No. WQ0012203
May 13, 1996
ENGINEER'S CERTIFICATION
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
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
Date
Registration No.

ATTACHMENT A
Q,
TILLEY MORRIs Rage
{5R 3445)
LEGEND
® EXISTING MONITOR WELLS
A PROPOSED MONITOR WELL
LOCATION
PROPOSED RECOVERY WELLS
ESTIMATED EX70T
OF GROIJNDW,7E,
I CGNTAMINATICN
MW-76
-MW-5
-MW-9D
MW—R $
BUST i
(INACTIVE)
(WASTE C'L;
�k
1
PERMIT NO. WQ0012203
CITY OF CHARLOTTE
FIRE STATION NO.9
GROUNDWATER REMEDIATION SYSTEM
MECKLENBURG COUNTY
SCALE:

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: , Fla-E_Sra1)o- - 9 1 C-17j OF _C_ ,&9--ram
Owner or Contact Person: Qtc*wu M. (,A-rr,o lz
Mailing Address: t:_es-r Fa04�rts -3Tyt1EVr C 6'WU-v nl= tO(
County. elephone: (-)64� 33tc 3,54
Present Classification: New Facility ✓ Existing Facility
NPDFS Per. No. NCOO Nondisc. Per. No. Wk=1-"3 Health Dept. Per. No
Rated by: Mtm 6,u-x--.) Telephone: Dale: 5/8/9(0
Reviewed by. Health Dept. Telephone:
Regional Office Telephone:,
Central Office Telephone:
ORC: Grade: Telephone;
Check Classification(s): Subsurface Spray Irrigation LandApplication
Wastewater Classification: (Circle One)CD II 111 IV Total Points: PY dflr--
k b �tirr PRCCESS=S AN) RSQQ IPMcN rW,-f Cti ARE AN LMB& PART 1N P
Y' cc R X LQ GRAZTY N7PLI;K47tON`S c pT
SUESURFACECLA .VFK:ATK)N
(check all units Thal apply)
1_ septic tanks
2. pump tanks
3. siphon or pump dosing systems
4. sand fillers
5. grease IrapAnterceptor
6. oil/water separators
7, subsuriace treatment and disposal:
__ aravily
pressure
SPRAY IRRIGATION CLASSiFIG4TK)N
(check all units that apply)
1.
preliminary treatment (definition no. 32 )
2.
lagoons
3.
,_septic tanks
4-
pump tanks
5. ---
-- -- pumps
6,
sand fillers
7-
grease trapfinterceptor
6_ __
_ oil/water separators
9.
disinfection
10.
chemical addition for
nulrienl/algae control
11.
spray irrigation of wastewater
Prelreaiment of wastewater In excess of these components shall be rated using the point rating
system and will require an operator with on eppropriale dual certification.
LAND APPLICAT104NIRESIDUALS CiASSIFICATION (Appries only to permit molder)
1. Land application of biosolids, residuals or coniaminaled soils on a designated site.
WASTEWATERTREATMENT FAGLfTYCLASSIMkT)ON
The following systems shall be assigned a Class I Gassiricalion, nye,is the flow is of a significant quantity or the lechnology is
unusually complex, to require consideration by the Commission on a case -by -Case basis: (Check if Appropriate)
1 OWwaler Separalor Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filler Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, disinleclion
and direct discharge;
3, Lagoon Systems consisting only of preliminary irealmenl, lagoons, pumps, disinlection, necessary chemical
lrea:menl for algae or nutrient conlrol, and direct discharge;
4. Closed loop Recycle Systems;
5. t Groundwaler Remedialton Systems consisling only a pumps, air -stripping, carbon adsorption, disinfeclion and
disposal;
6. Fish farms wilh discharge to surface waters:
7. Waler Plant sludge handling and ba:k•wash waier treatment;
8. Sea'ar.' processing consisling of scm-erring and disposal.
9. Single-lamily discharging systems with the exception of Aerobic Trealmenl Units, will be ctassilied it permitted after
July 1, ISM or it upon inspection by the Division, it is found thal the system is not being adequately operated or
maintained. Such systems wili be nolilied of the classification or reclassitir-alion,�y the Commission, in writing.