NC0084875_Complete File - Historical_20171231

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr;, Governor
Jonathon B. Howes, Secretary
A. Preston Howard, Jr., P.E,, Director C. DEFI `. OF
MgN
September 8, 1995NATURAL RESOURCES
s. Michelle Gregor SEP 12 1
City of Charlotte, Engineering Department
600 East Fourth Street
Charlotte, North Carolina 28202 � � 01 t 1 EO M M REE M A
Subject: Project Return (NCO084875)
(Previously NCG510262)
City of Charlotte
Fire Station No. 9
Groundwater Remediation System
Mecklenburg County
Dear Ms. Gregor.
This is in reference to your application received April 28 1995 for the construction and operation
of the subject facility.
As requested in a telephone conversation between Rodney Hamm of PSI and Dana Bolden of the
Division's Permits and Engineering Unit, the Division is hereby returning your application` and supporting
documents. No permit action has been takers with respect to the application, however, as the application
has been reviewed by Division staff, your application fee cannot be returned to you. Should negotiation
with the Charlotte -Mecklenburg Utility Department ent fail to achieve an agreement for discharge of the treated
groundwater to the sewer system you may reapply for a permit to discharge directly to a surface water
body. If you reapply, please include appropriate easements or other agreements with any affected land
owners should: either the discharge pipe or the discharged groundwater'cross adjoining properties enroute
to the surface water discharge location.
Please be advised that construction and/or operation of wastewater treatment facilities without a
valid permit is a violation of North Carolina General Statute 143-215.1 and may subject the City of
Charlotte to appropriate enforcement actions in accordance with :North Carolina General Statute 143-
215.6. Civil penalties of up to $10,000 per day per violation may be assessed for failure to secure a
permit required by North Carolina. General Statute 1-215.1,
1f you have any questions concerning this matter, please contact Dana Bolden at'919/7 3-50 3,
extension 518.
Sincerely,
(r1_,A. Preston Howard, Jr., P.E.
cc.
Central Files
Rodney Hamm, PSI, Incorporated
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% pest -consumer paper

�s
SOC PRIORITY PROJECT: N
To: Permits and Engineering Unit
Water Quality Section
Attention'. Dana Bolden
Date: May 17, 1995
NPDE8 STAFF REPORT AND RECOMMENDATIONS
County: Mecklenburg
NP ES Permit No.: NCG510262
MRO No.: 95-081
PART I W GENERAL INFORMATION
1. Facility'and Address: City of Charlotte
`ire Station No
600 East Fourth` Street, 12th Floor
Charlotte, N.C. 282 2-2844
2. Date of Investigation: ation: May 17, 1995
3. Report Prepared By: Michael L. Parker, Environ. En r. II
4. Person Contacted and Telephone Number: No one,
5. Directions to Site. From' the ',jot, of Hwy. 51 and 8R 3340
(McKee Rd.) travel east on 8R 340 t 0.4 male to the jot
*with 8R 445 (Tilly M�rri Rd a C arldtte'a F re 8��� , ^"
No. 5 is located in the northeast corner of this ju
5, Discharge Point( ), List for all discharge;Points:
Latitude; 35° 03' 52"
Longitude; 8° 45' 44"
Attach a U8G8 Man Extract and indicate treatment pl
and discharge point on map.
USGquad No.: G 15 8E
'7. Site size and eanaion area consistent with apli
YesY
. Topography (relationship to flood plasm included): gently
rolling, 1-3 slopes.
. Location of Nearest Dwelling: Approx. 10`± feet from the
proposed WWTP site,

Two
tom"
b . Ra
. D1
d
d
d
RT II - D
:eam or Affected Surface Waters: U. T. to
411 �., jx L J as e is
4. SIC 'Code(s) : 9999
Wastewater code( ): 66
S. MTU Code{s}.56000
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction
Funds or are any public monies involved (municipals 01
No
2 Special monitoring or limitations (including toxicity
requests: done at this time.
cribe receiving stream features and pertinent
n tre,m uses; No flow observed at the point o
charge. Discharge is into a st rmwater drainac
ch. Downstream uses are mostly rural.
CR I PT ON OF ]DISCHARGE AND 'TREATMENT WORKS
a . voi ume of wastew ter =; �i . t�t� s� ri�r:rs lTs,�� i ern t" acit�r
. What is the current permit
C. Actual treatment capacity`
design capacity): N/A
d. Date(s) and construction
ATCs issued in the previo
e . Description of existing 01
W T ;facilities: There are
f. Description of proposed W1
proposes to construct an
carbon adsorption.
c. Passible toxic impacts to
from GW remediaticn systei
toxic characteristics.
h. Pretreatment Program {PC'
. Residual handling and.: utilizat
residuals generation is expect
. Treatment Plant Classification
I d —14-Inev sheet}
Important Sc CIJOC or Co

IF
Pce Three
4e alternative Analysis Evaluation
a. Spray* Irrigation: Insufficient area.
bx Connect to regional sewer 'system: None available.
c<Subsurface: Insufficient area.
PART IV - EVALUATION AND RECOMMENDATIONS
The city of Charlotte requests approval to d:
GTE from remediation facilities to be installed at
Station No. 9. The GW has been contaminated as a'
leaking underground gasoline and diesel fuel star,
The site was suitable for the construction o
GSA rermedi tion system, however, there is some cozy
the location of the proposed discharge. The appli
utilize an existing storm ater'drainage pipe to c
treated GW off -site, This pipe exits the property
southeast corner of the lot and discharges onto a
property. The 'effluent from the remediation'facil
in nuisance problems {stagnant water, vectors, er
therefore, the applicant should notify the ad ace
owner in writing that a discharge of treated GW 'c
property is being evaluated by the Division so th
that he (gar she) may have can be addressed prior
issuance. Receipt of this written notification sl:
to the issuance of the requested Permit. Similar
occurred with other GW remediation`Permits (ref
>
doc nstream property owner impacts were 'predicted.
Pending a satisfactory resolution to the ahc
-re-cm-endedthat a Permit be issued as request
Signature f eport Preparer D to
WaterQuality/ egional Supervisor Da e

4
OR
0
Kk r)
r I
atl5ar 1X SW

State of North Carolina
Department of Environment, Lf
Health and Natural Resources 4
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Hawes, Secretary
A. Preston Howard, Jr., P.., Director
�. OF
May 1995
1 w 111 . r.
' R1,, T11,E""
"OU
M. Michelle Gregor
City of Charlotte Engineering Department nY h kt
600 East Street, 12th Floor rt t
�..., ��«.,� ttt
Charlotte, North Carolina 28202-2844
Subject: NPDES Permit Application
Application Number NC00W75
City of Charlotte
Fire Station No. 9'
Dear Ms, Gregor. 'Mecklenburg County
This is to acknowledge receipt of the following documents on April 28, 1995:
Completed Application Form,
Engineering Proposal (for proposed control facilities),
Request for permit renewal,
Application processing fee of $400.00,,
Engineering; Economics Alternatives Analysis,
Engineering Plans and Specifications
Local Government Signoff,
Source Reduction and Recycling,
Interbasin Transfer,
Other:
The items checked below are needed before review can begin:
Completed Application Form,
Engineering proposal (see attachment),
Application Processing Fee of $;
Delegation of Authority (see attached),
Biocide Sheet (see attached),
Engineering Economics Alternatives Analysis,
Engineering Plans and Specifications
Local Government Signoff,
Source Reduction and Recycling,
Interbasin Transfer;
Other.
If the application is not made complete within thirty (30) days; it will be returned to you and may
be resubmitted when completes
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

Please not that even though you applied for coverage under General Permit NCG510000 -
CGroundwater I emediation Facilities, your application is being handled as an individual permit
application. This is due to limitations in NCG510000 that mare sites contaminated by diesel fuel,
fuel oil, and similar constituents ineligible for coverage under the General `Pe it,
This application has been assigned to Dana Bolden (919/ 733-5083 extension 51 ) of our Permits
Unit for review. You will be advised of any comments, recommendations, questions or other
information necessary for the review of the application'.
I am, by copy of this letter, requesting that our Regional Office Supervisor prepare a staff report
and recommendations regarding this discharge. If you have any questions regarding this
application, please contact the review person listed above.
Sincerely,
Coleen Su . ins, P,E.
cc; Mooresville Regional Office
Permit Application File

F MM
4h ;Jj9
PM 0 Z4L Professional tC Industries, Inc.
Environmental Management Group
April 26, 1995
PSI Project No. 511-24178
r. Dave Goodrich
North Carolina Department of
Environment, Health and Natural Resources
Division of Environmental Management
512 North :Salisbury Street
Raleigh, North Carolina 27611
Subject: National Pollutant Discharge Elin�dnation System Permit Application
City of Charlotte -Eire Station No.
4529 McKee Road
Charlotte, North Carolina
Dear Mr. Goodrich:
Attached is one copy of the National Pollutant Discharge Elimination System (NPDS) General Permit
Application NCG510000, The completed application is providedfor the City ofCharlotte's Fire Station
No. 9 facility located at 4529 McKee Road. in Charlotte, Mecklenburg County, North Carolina, Also
enclosed is the permit application fee of $400,00,
If you should have any questions or need additional information, please do not hesitate to contact me at
[phone].
Sincerely, '
PROFESSIONAL SERVICE INDUSTRIES, INC.
;:.
p t.
l t
. w
Rodney I.�n'
Staff Scientist
Attachments
RJHJr
h.24178,NPDES.1tr

tt
Department of Envirt
Division
1.., ISO rifr
James G. Marun, Governor Ae Pre
Wiuiam W. cobey, Jr.,
National ?'ollutant Dischar Il nation System
Application for Coverage under General PerTrLit CC 51 ; Groundwater
designed to treat petroleum contaminated groundwater.
Name, Address, location, and telephone number of facility requesting Perrrut,
Official Name: of Chn-rintt-o
, Maihn- Address:'
(I)Street Address; r -1- , �
l-})i.�2 Lfiy T
(3)State; N
(J ounry;
C. vocation. (Attach map delineating general facility" location)
(?) tree: -'ddress> #
(2)Cirv;
(3)State) 4na
(4)CounryF
D� Telephone Number; �)
. Facility Contact:
A. Name,
B. Title,
C. Company Name; - � 7 ' - Z
0. Phone Number, � _ } `W '_- 2 3 L
Application type (che k, appropriate se ectton).
A. New or Proposed; ---M�-
B . Exsting; Lf previously permitted, provide permit number
and L-sue date .
C. Modification;
(Des,-nbe the nature of the modification):
4. Description of discharge
A. Please state the number of separate disciriarge points.

B. Please describe the amount of wastewater being discharged per each separate discharge point:
1:2 ores per day ) 2 ) 3: ) 4: )
C. Check the duration and frequency of the discharge, per each separate discharge point
1. uo
Z Intermittent (
3. Seasonal (check nth(s) the discharge s): January [ 1: Feb` [ 1; March [ 1; April [ 1,
May [];I e[1R1uly[1;Au t'[1, September [1, 1. November [1; December [I.
4. How many days per week is there a discharge?(check the days the discharge occurs)
Monday [ 1, Tuesday [ 1Wednesday [ 1,Thursday [ ],Friday [ 1 Saturday [ 1, Sunday [ 1.
. How much of the volume discharged is treated? (state in per t) i 0 `
D. Describe the type of wastewater being discharged per separate discharge point Specify what is
being removed and products recovered. This includes a listing g of any chemicals found in
detectable amounts with the maximum observed concentration reported, The summary of
analytical results containing this maximum value should also be sub teed (i.e. the listing, not
the graphical scan). The most recent sample must be no older than one year previous to the date
f this application. The following volatile organic compounds should be included along with
y suspected :fuel additive;
1. Benzene*;
2. Toluene*;
. Ethylbenzene*;
. lne*;'
5 ° Lead;
. Methyl tent -but lether ( )t
. Dibro e (EUB),'
. 1,2-dichloroethne;
. Isopropyl ether;
10. Naphthalene;
. Phenol;
*(An EPA approved method capable of detection levels to 1 ppb should be used to detect these
compounds).
E. Please check appropriate type of treatment being used to treat the groundwater,
1. Water Se tor°
2. Air Stripper:—x—x
3. d n;
4. Activated bon ion;
5. er(s )°
6. Separately, please describe in de " (size, volumecapacity, design flow through treatment,
etc.) each type or treatment that was checked in 1 through 5. include, if any, the
manufacturer's information on each type of treatment. Also provide the removal efficiency of
each compound detected for the pro)ect, if known. Give design specifics (i.e. design volume of
each unit, materials used in air stripper, etc.). Existing treatment facilities should be
described in detail and design criteria or operational data should be provided(including
calculations) to ensure that the facility can comply with requirements of the General Permit.
Please in -Jude model and calculations used in determining the design requirements for the air
strip
7. What are the well sizes and how many exist.
. Please state the pump sizes and their location in relation to the treatment used in part 2X.
. Please explain what fail-safe m, such as audible and visual alarms or automatic
shutoff systems, are provided to ensure no system failures.
10. Is there an access to the effluent for sampling?( either an open pipe or a valve to obtain a
sample)
Page 2

NOTE: Construction of any wastewater treatment facilities require submission of three (3) is of plans
and specifications along with their application. Design of treatment facilities must comply
with requirement 15A NCAC 2H .0138. If construction applies to the discharge, include the
three sets of plans and specifications with the application.
5. What is the nature of the business applying for this permit.
Environmental Consultant
6. Name of receiving water or waters; Si -le Creek Classification: Unknaim
(Attach a USGS topographical map with all discharge point(s) clearly marked)
7. ,Is the discharge directly to the receiving water?(YN)-.E—
If no, state specifically the discharge point. Mark clearly the pathway to the potential receiving
waters on the site map. (71iis includes tracing the pathway of the storm sewer to its discharge
point, if a storm sewer is the only viable means of discharge.)
8. Please address possible non -discharge alternatives for the following options:
Please see Attachments
A. Connection to a Regional Sewer Collection System,
B. Subsurface Disposal;
C. Spray Irrigation;
9. 1 certify that I am familiar with the information contained in the application and that to the best of
my knowledge and belief such information is true, complete, and accurate.
Printed Name of Pewn S
Title P I-r"' k, 0i ifs
to Application Si i/93
v
sigriatum of ApF
CARVIIN D (11 EWYM11-T11AL
Any person who knowingly makes any false statement, representation, or certification in any
application, record, report, plan or other document filed or required to be maintained under Article 21 or
regulations of the Environmental Management Conu-nission implementing that Article, or who falsifies,
tampers with or knowingly renders inaccurate any recording or monitoring device or method required to
be operated or maintained, under Article 21 or regulations of the Environmental Management
Commission implementing that Article, shall be guilty of a n-dsdemeanor punishable by a fine not to
exceed $10,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides
a punishment by a fine of not more than $10,000 or imprisonment not more than 5 years, or both, for a
similar offense.)
Notice of Intent must be accompanied by a check or money order for $400.00 made payable to the North
Carolina Department of Environment, Health, and Natural Resources. Mail three (3) copies of entire
package to:
Division of Environmental Management
NPICES Permits Group
Post Office Box 29535
Raleigh, North Carolina 27626-0535
Page 3

ProFess i ona 1Service I ndwstr 1 es
qpA
• # » :":0
wr... .. " *:
ti3
y x; .t »
got » p
r
{
� I'ra�l"zrt�nc�
aF •, +���hae' �,\
x
„
r
I » UNIT D STATES
I ' DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
...t.. . .W_ P
» d
v _ r
4,
1000 0 1000 2000 30M •'
WEDDINGTON.N.C.-S C.
A ROX I MATE SCALE IN FEETs0a= rF z
,
C INTERVAL 1 FEET rr� ;t
as
NATIONAL TIC VERTICAL. DATUMOF 19229 :', DMA �r 465. W� E - S S V,6
PROJECT NAME
FIRE STATION $9
T I L.L:Y MORRIS ROAD AT c E ROAD
CHARLOTTE, NORTH CA INA
1
U,S.G.G, TOPOGRAPHIC MAP
;T T
51 I -241x78 APRIL 1995

x
X
mw-
11 ll
Mw-1
M -- , aaw-
�`�
m_ 8
w-4
BUILDING
PROPERTY'
UNE
SWALE
TILLEY MoRRI ROAD
344,5)
� d.E
F
L
N MONITOR WELL ,LO A ON NAP
kt TOR LOCATION
FIRE STATION! No. 9
4529 M KEE ROAD
CHARLOTTF—NORTH CAROUNA
PROFESSIONAL. SERVICE INDUSTRIES, INC.
xt HAMS SOULMOW
DRAWN BY. ICE SEAL 1" � 50> TPRI0.1% Para. 1 - 1'aTE; 10 / 4/94WG.. �'

ATTAC ET

Predicted Concentration at Recovery Wells
The initial influent concentration at the recovery wells, which should be the highest
experienced by the system, was predicted by
To perform these calculations, data points
selected distance of the proposed recovery
monitor well to the recovery well is measur
larger distances are smaller numbers, and
the recovery well will carry less influence in
together, and each individual inverse distant
This provides a weighting factor, the sum
point is multiplied by the weighting factor,
.Y
uncertainties in the procedure.

Weighted Average Calculations
° Fire Station No.
4529 McKee Road
Charlotte, North Carolina
The weighted average calculations are based on the following data:
DESCRIPTION UNITS VALUE
No. Recovery Wells __ 3'
Flow per Well, -1 gpm0.5
Flow per Well, RW-2 gpm 0.
Flow per Well, RW-3 gpm 0.5
Total Flowrate gpm 1.5
Upgrdient Capture Distance feet` 18
Do gradient Capture Distance feet 1
Lateral Capture Distance feet 18
Safety Factor -- 1.25
S.F. Applied to Concentration`/ - Yes
Latest Sampling Event Date _ /20/4
10/17/4
Contaminant concentrations obtained during ground. -crater sampling events may be elevated i
comparison to contaminant levels present over the entire area of influence. Therefore, by
calculating a weighted average of area monitoring well contaminant concentrations obtained under
static conditions, an estimate of the contaminant concentrations entering the treatment system under
dynamic conditions can be determined. The fallowing conditions to use this technique must b
considered.
(1) The recovery well must be located near the zone of highest concentration.
(2) The monitoring well selected must be within the cone of influence of the recovery well.
() Only monitoring wells with data from the same relative depth should be used.
() Site conditions that might affect the recovery well design must be considered.
e monitoring' wells inside the capture zone of the respective recovery well contribute to the
influent concentration to the treatment system. Monitoring wells outside of the capture zone
do not contribute to the weighted averages. The procedure followed is.
(1) Wells outside of the capture zone are excluded from the calculation.
(2) Wells not sampled are assigned a concentration value of zero which excludes this well
from the calculation
() Laboratory analyses below the limit of detection are assigned the detection limit
concentration.

The following
data is obtained from scaling the site maps for the approximate distance from the monitoring wells to the respective
recovery well.
All distances are approximate, and arc recorded in feet.
RE COVERY WELL #t
RE COVERY WELL #2
RECOVERY WELL #3
LOCATION
di I/di
di
I/di
di
1/di
MW-1
5 0.2000
28
Q0357
26
0.0385
MW-2
66 0.0152
97
R0103
93
0.0108
MW-3
28 0.0357
48
0,0208
60
0M67
MW-4
52 0.0192
65
0.0154
40
0.0250
MW-5
29 0.0345
9
0.1111
17
0,0588
MW-6D
16 0.0625
23
R0435
15
0,0067
MW-7
67 0.0149
36
0.0278
49
0.0204
MW-8
77 0.0130
55
0.0182
46
0.0217
MW-9D
20
17
14
Benzene
MWNO.
ct I/di -1/di CI
I/di
t/di
C2
I/di
I/di
C3
("g/1) (ft) "-1 SUM(t/di) (ug1l)
(ft) ^ -t
SUM(t/di)
(119/1)
(ft) - -t
SUM(tLdli)
(ug/1)
MW-1
24,000 0.2000 0.7619 18,285.71
0.0000
O.O(XX)
0.00
0.0000
0.0000
0. 0000
MW-2
0("
1 0.0000 0.0.00
0.0000
0.0000
0.00
0.0000
0.0000
0.0000
MW-3
1 0.0000 0.0000 0.00
0.0000
0.0000
0.00
0.0000
0.0000
0.0000
MW-4
1 0.0000 0.0000 0.00
0.0000
0.00M
0.00
0.0000
0.0000
0.0000
MW-5
170 0.0000 0.0000 0.00
0.1111
0,6538
111.15
0.0588
0.2987
50.7824
MW-6D
4 0.0625 0.2381 1.02
0.0000
0.(X)00
0.00
0.0667
0.3385
1.4558
MW-7
1 0.0000 0.0000 0.00
0.0000
0.0000
0.00
0.0000
0.(X)()O
0.0000
MW-8
1 0.0000 0.0000 0.00
0SX)00
0.0000
0.00
0,0000
0.0000
0.0000
MW-9D
1 0.0000 0.0000 0.00
0.0588
0.3462
0.35
0.0714
0.3627
0.3627
TOTAL
-- 0.2625 1.0000 18,28634
0.1699
1.0000
111.50
0.1969
1.0000
52.60
ct = concentration at monitor well, 9/20/94 or 10/17/94
di = distance from monitor well to recovery well
C1, C2, C3 = total predicted concentration at recovery well RW-01, RW-02, RW-03, respectively

Toluene
M NU.
ct
1/di
1/di
CI
I/di
I/di
C2
I/di
I/di
C:3
(11g/1)
(ft) ^ -t
SUM(1/(1i)
(11g/1)
(ft)"-t
SUM(!/di)
(log/1)
(ft) ^ -t
UM(t/di)
(11g/1)
MW-1
49,000
0.2000
03619
37,333.33
0.0000
0.()( X)
(100
0.0000
00M
0.00
MW-2
1
0.0000
00000
0.00
0.0000
ROW)
0.00
R0000
0.()(XX)
0.00
W-3
1
0.0000
0.0000
0.00
0.00(x)-
0. )0
0.00
0.0
().0(
0.00
MW-4
1
0.0000
0.0000
0.()
0.()(X)()
0.0(X)O
0.00
0.0000
0.0000
0.00
MW-5
180
RM00
0
0.00
0.1111
0.6538
117.69
0.0588
0.2987
53.77
W-6D
9
0.0625
0.2381
2.21
0.00M
0.0( )0
0.00
0.0607
0.3385
3.15
MW-7
1:
0.0000
0.0000
0.00'
0.0000
0.00M
0.00
0.0000
0.(.
0.00
MW-8
1
0.0000
0. )
0.00
0.00(x)
0,(XM
0:0
0.0000
0.0000
0.00
M -9D
'1
0.0000
WNW
0.00
0.0588
0.3462
0.35
0.0714
0.3627
0.36
TOTAL
-
0.2625
1.0000
37,335.55
0.1699
1.0000
11.04
0.1969
1.0000
57.8
Ethylbenzene
MW NO.
cI
ttdi
1/di
Ct
t/di
t/ i
C2
1/di`
I/di
C
(11g/1)
(ft)"•t
SUM(t/di)'
("g/1)
U (/di)
("g/1)
(ft) ^ -t
SUM(!/di)
(09/1)
MW-1
3,100
0.2000
0.7619
2,361.90
-(ft)-.t
MUM
0.
0.00
0.0000
0.0000
0.00
MW-2
1
0MOM
0.0000
0.00
0.0000
0.0(`
0.00
0.0000
0.0000
0.00
MW-3
1
0.0000
0.0000
0.00
0.0000
ROOM
0.00
0.0000
0.0000
0.00
M W-4
1
0.0000
0.0000
0.00 -
0.0000
0.0000
0.00
0.0000
0.00
0.00
M-5
6
0.0000
00)
0.00
0.1.111
0.638
4.12
0.0588 -.
0.2987
1.88
MW-6D
2
0.0625
0.238t
0.38
0.()(X)0
(). )
0.()
0.0667
0.3385
0.54
MW-7
1
0.0000
0.0000
0.()
0.0000
0.(XX)O
0.00
0.0000
0.0000
0.00
MW-8
1
0.0000
0
0.00 '
0..
0.0(Vo
0.00
0.0000
0.0000
0.00
MW-9D
1
0.0000
0.
().(H)
0.0588
0.3462
0.35
0.0714
0.3627
0.3
TOTAL
--
0.2625
1.0000
2,362.29
0.1699
1.00M
4.47
0.1969
LOOM
2.7

Total Xylenes
MW NO.
ct
1/di
t/di
cl
I/di
1/di
C2
1/di
!/dl
C3
(xi/1)
(ft)^-t
SUM(1/di)
(u /1)
(ft)^-1
SUM(1/di)
(li /1)
(ft)"-1
SUM(i/(ii)
(lig/1)
MW-1
15,300
0.2000
07619
11,65T14
0.0000
ROW()
0.(X)
0.(X:)(X)
0.(X)()()
0.00
M -2
1
Q0000
0.0000
0.00
0.0(X)()
000)
0.00
0.0000
R0000
0.00
MW-3
1
Q(
0.(Xw
0.00
0.(
0.0000
0.00
0. X)
0DW0
0.00
-4
1
0.0000
0.0000
0.00
0.0000
0.(X)00
0:(()
0«( )
0.0000
0.00
W-5
105
0.00W
0.0000
0.00
0.1111
Q6538
68.65
0.0588
0.2987
31.37
MW-6D
12
0.0625
0,23 1
2.74
ROM)
0.0000
0.00
0«0667
0.3385
3.89
MW-7
1
0.0000
0.0000
0.00
0.0000
0.0
0.00
0.00
0.0000
0.00
MW-8
1
0.00
0.0000
0.00
0.0000
0.(Xm
0.00
0.0000
0.
0.00
.W-97
1
0.0000
0.0000
0.00
0,0588
0.3462
035
0.0714
0.3627
0.36
TOTAL
_-
0.2625
1.0000
11,659.88
0.1699
1.0000
69.00
0.1969
1.0000
35.62
MTBE
N la
ct
t/di
[/di
Ct
OR
t/dl
C2
t/dl
t/di
C-
(" /1)
(ft) ^ -t
SUM(t/di)
(ta ll)
(ft) ^ -t
SUM(t/di)
(u /1)
(ft) ^ -1
UM(t/di)
(ng/1)
W-1
41,000
0.2000
0.7619
31,238.10
0.0000
0.0000
0.00
0.0000
0.0000
0.00
MW-2
1
0.0000
0.0000
0.00
0.0000
0.0000
0.00
0.0000
0.0000
0.00
MW-3
1
0.0000
Q0000
0.00
0.0000
0.0000
0:00
0.0000
0.0000
0.00
W-4
1
0.0000
0.0000
0.00
0.0000
0.(Xm
Q00
0,0000
0.0000
0.00
MW-5
9
0.0000
ROW)
0.0()
0.1111
Q6538
5 88
0.0588
0.2987
2.69
M -6D
47
0.0625
0.2381
11. 19
0.0000
0.0000
00()
0.0667
0.3385 -
15.91
MW-7
1
0.0000
0.0000
0«00
0.0000-
0.0000
0.00
0.0000
0.0000
0.00
M W-8
1
0.0000
0.0000
0.00
0.0000
0.0(,()()
OAK)
0.0000
0.0000
0.00
MW-9D
1
0.0000
0.0000
0.00
0.0588
0.3462
035
0.0714
0.3627
0.36
TOTAL,
--
0.2625
1.0000
31,249.29
0.1699
1.0000
6.23
0.1969
1.0000
18M96

Phenol
MW NO.
c1
1/di
1/di
ct
1/di
1/di
C.,2
1/di
1/di-
C3
(ug/1)
(ft),^ -1
SUM(1/di)
("g/1)
(ft) ^ -1
UM(1/dl)
(" /1)
(ft) `' -1
SUM(1/di)
("g,/1) ,
MW-1
1,930
0.2000
0.7619
1,470.48
0.0000
R0000
0.00
R00M
0.00M
0.00
MW-2
4
0.0000
0.0000
0.00
0.00M '
0.000
(MV
0.00M
0.0(m
0.00
-
80
0.
0.
0.00
0.0(
0.00M
Roo
0.
0. )
0.00
MW-4
4 _
0.0000
0.0000
0.00
0.(xx)()
0.(X)(t)
off)
0.0000
0.0000
0.00
MW-5
80
0.0000
ROOM
0.00
0.1111
0.6538
5231
0.0588
0.2987
23.90
W-6D
80
0,0625
0,2381
1 .05
().O(
0,0000
0.00
0.0667
0.338.5
27.08
W-7
80
0,0000
0.0000
0.00
().( )( ()
01)(M
0,00
0.0000
0.0000
0.00
MW-8
80
0.0000
0.0000
R00
0.( 0 `
ROM)
0.00
0,0000
0.0000
OM
MW-9D
80
0.0000
0.0000
0.00
0.0588
0.3462
27.69
0.0714
0.3627
29.02
TOTAL,
--
0:2625
1.0000
1,489.52
0.1699
1,(Xw
80.00
0.1969
1.0000
80.00
Naphthalenes
MW NO.
ct
t/di
t/di
ct
1/di
1/di
+ 2
1/ill
1/di
C3
(ugA)
(ft) ^ -1
SUM(1/di)
(ug,/1)
(t) ^ -1
mw-I
540
0.2000
0.7619
411.43
ROM)
R0000
O.(K)
0.0000
0.0000
0.00
MW-2
1
0.0000
0.0000
0.00
0.0000
01"XXV
O.(X)
0.0000
0.0000
0.00
MW-3
80
0.0000
0.0000
0.(
0.0000
0.(x)(
Roo
0.0000
R0000
0.00
MW-4
4
0.0000
0.
0.00
0.0000
0.0000
0.(X)
0.00M
0.
0,00 `
MW-5
80
0.0000
0.0000
Roo
0.1111
0.6538
52.31
0.0588
0.2987
23.90
MW-6D
80
0.0625
0.381
19,05
0.0000
00.
O00
0.0667
0.3385
27.0
MW-7
80
0.0000
0.0000
0.00
0.0000
0.0000
000
O.(X)00
0.0000
0.00
MW-8
80
0.
0,0000
0.00
0.0000
ROOM
OCR
0.0000
0.0000
0.00
-9D
8O
0.0000
0.0000
(1.00
0.0588
0.3462
27.69
0.0714
0.3627
29.02
TOTAL
0.2625
1.0000
430.48
0.1699
1. )()
80.00
0.1969
UXM
80.00

, -d chloroethane
MW NO.
ct
i/dl
t/dl
Cl
1/di
t/d1
C2
t/di
t/tll
C3
(lig/1)
(ft) ^ -t
SUM(t/dl)
(u /1)
(f) ^ -t
UM(1/d1)
(ltgg/l)
(ft) ^ .l
S NI(t/t11)
(ug,/l)
MW-1
530
0.2000
0.7619
403.81
0.0000
0.0000
0.6o
0.(Xx)0
0.(,XXK)
0.00
MW-2
I
0.(X)()O
0.0000
0,00
0.0000
oJXXV
0.00
R0000
0.0000
0.(X)
M -3
1
0.0000
0.0000
0.00
0.0000
0.0000
0,00
0.0000
0,00W
0.00
MW-4
1
0.0000
0.0000
0.00
0.0000
WNW
0.00
0.0000
0. )
0.00
MW-5
I
0.(XX,)()
ROW() ()
0.00
().1111
0.6538
R65
0.0588
0.2987
0.30
W-6D
1
0.0625
0.2381
0.24
0.0000 `
0.00 0
0.00
0.0067
0.3385
0.34
W-7
1
0.0000
0.0000
0.00
0.0000
0.0000
0.00
0.00
0.0000
0.00
M W-8
1
0.0000
0.0000 ,
0.00
0.0000
0.0000
0.00
0.00M
0. )
0.00
MW-D
1
0.0000
0.0000
0.00
0.0588
0.3462
0.35
0.0714
0.3627
0.36
TOTAL,
--
0.2625
1.0000
404.05
0.1699
LOOM
1.00
0.1969
1.0000
1.00
1,2-dibro oethnne ( B
MW N.
ct
l/di
1/d-1
ct
t/dl
t/dl
C2
t/di
t/dl
C
(ug/1)
(ft)^-t
UM(t/dl)
(Iag1l)
(ft) ^ -1
SUM(1/d1)
(t /1)
(ft)"-t
UM(t/lit)
(tfgll)
M-1
340
0.2000
0.719
259.05
0,0000
0.()
0.00
0.0000
0.0000
0.00
M W-2
1
0.0000
0.0000
0.00
0,0000
0.0()(X)
0.00
0.0000
R0000
0.00
W-3
1
0.0000
Q0000
0SX)
0.0000
OmOO
0.00
R0000
0.0000
0.00
MW-4
1
0
Q0000
0.00
0.
().(XM
0.00
0.0000
0.0000
0.00
MW-5
1
0:
0.0000
0.00
0.1111
0.6538
0.65
0.088
0.2987
0.30
MW-6D
1
0.0625
0.2381
0.24
0.0000
wxw
0.00
o.o667
0.3385
0.34
MW-7
1
0.0000
0.0000
0.00
0.0000
RoMo
0.(()
0.0000
0.0000
0.00
MW-8
1
0.0000
0.0000
0.00
0.0000
0.0
0 00
0.0
0.0000
0.00
W-9D
1
0.0000
0.0000
0.00
0.0588
0.3462
0.35
0.0714
0.3627
0.36
TOTAL
__
0.2625
1.0000
259.29
0.1699
1.0000
ISM
0.1969
1.0000
1.00

Methylene Chlrride
MW NO.
et t/di
1/di
Cl.
I/di
I/di
C2
I/di
I/dl
C3
(ug/1) (ft) ^ -1.
SUM(l,/d1)
(ft) ^ -1
SUM(I/di)
L1194)
MW-1
210 0.2(W
0.7619
MR00
0.0000
0.00
0.0000
0.()(X)()
0.00
MW-2
I RO(W
0.(XM
0.00
00)
0.0000
0.0000
0.00
MW-3
1 0.0000
0.0000
0.00
0.0000
0.0000
0.00
R0000
0.(XM
0.00
MW-4
3 0.0000
0.0000
00)
0.0000
0.0(00
0.00
R0000
0oo)
0.00
MW-5
2 ROW()
0.0000
0.00
1111 ,
0.6518
1.18
0,0588
0.2987
0.54
MW-61)
2 R0025
0.2391
0.36
R(W0
().(X)O()
0.00
0.0667
0.3385
0.51
MW-7
1. 0.0000
0.()(X,)0
0.00
0SXK)o
0.(X)00
0.00
ROW)
0.0000
0.00
MW-8
2 0.0000
0.0000
0.00
R00M
0.0000
0.00
0.0000
0.0m)
0.00
MW-9D
1 0.0000
0.0000
0,00
0.0588
0.3462
0.35
0.0714
0.3627
0.36
TOTAL
-- 0.2625
0000
160.36
O.1699
1.0000
1.52
0.1969
L(M)
1.41
The estimated maximum
contaminant concentrations of ground water entering the treatment system are as follows:
CONSTITUENT
RW-t
RW-2
RW-3
Ct
[Ctl
Benzene
18,286.74
111.50
52.60
6,150.28
7,687.85
Toluene
37,335.55
118.04
57.28
12,503.62
15,629.53
Ethylben7ene
2,362.29
4.47
2.79
789.85
987.31
Total Xylenes
11,659.88
69.00
35.62
3,921.50
4,901.88
MTBE
31,249.29
6.23
18.96
10,424.83
13,031.03
Phenol
1,489.52
80.00
80.00
549.84
687.30
Naphthalenes
430.48
80.00
80.00
196.83
246.03
1,2-dichloroethane
404.05
1.00
Mx)
135.35
169.19
1,2-dibromoethane (EDB)
259.29
1.00
1.00
87A0
I08.87
Methylene Chloride
16036
1.52
1.41
54.43
68.04
where:
RW-1,2,3 =Constituent concentration estimated for each recovery well
Ct = Averaged concentration of recovery wells
101
Averaged concentration of recovery wells times safety factor

Air Stripper Design Basis
Fire Station No.
4529 Mcrae Road
Charlotte, North Carolina
The information required to design
the air stripping system is as follows:
PARAMETER DESCRIPTION
UNITS
VALUE
Groundwater Flowrate to
expected flow rate
gpm
1.
Treatment System
minimum
gpm
1
maximum
gpm
10
Groundwater Temperature
degrees F
60
Air Temperature
degrees F
60
Expected influent concentrations and effluent requirements:
DESIGN
TARGET
CONSTITUENT
INFLUENT
CONCEN.
CONC. (ug/1)
(ugfl)
Benzene
7,688
1
Toluene
15,630
1000
Ethylbenzene
987
29
Total Xylenes
4,902
530
MTBE
13,031
200
Phenol
687
300
Total Naphthalenes
246
21
1,2-Dichloroethane
169
0.38
Methylene Chloride:
109
5
Ethylenedibromide (EDB)
68
0.0004
As a conservative estimate, a flow rate to the middle of the expected flow
range was used
to size
the treatment unit.
Flow Rate - 5 gpm
DESIGN ,
INFLUENT
TARGET
DESIGN
REMOVAL
CONSTITUENT
CONCEN.
CONCEN. _
EFFLUENT
EFFICIENCY
(Ugn)
(u )
(ug11)
(10/0
Benzene
7,688
1
0.0
100.0
Toluene
15,60
1000
0.0
100.0
Ethylbenzene
Total Xylenes
987
4,902
29
50
0.0
0.0
100.0
MTBE
13,031
200
4.6
100.0
Phenol
687
300
687
Ro
Total Naphthalenes
246
21
0.1
100.0
1,2-D chloroethan
169
0.38
0.0
100.0
Methylene Chloride
109
5
0.0
100.0
Ethylenedibromide (EDB)
68
0.0004
1.1
98.4

A low profile air stripper was chosen as the primary treatment unit for the site, based upon capital
costs and its ability to handle low and intermittent flow rates. Other units considered included
diffused aerators and jet aspirating strippers.
e unit selected for this site was:
Manufacturer. Remedial Systems, Inc.
Model No.: RTS-254
Air Flow Rate: 400 efm
DESIGN COMMENT:
In order to achieve the targetconcentrationsin the effluent for all of the constituents present
(i.e. phenol and EDB),' t will be necessary to palish the effluent stream using granular activated
carbon (GAC). Using the effluent concentrations from the air stripper modeling, the carbon
usage estimate was completed.

r=PDfl
REMED I AL SYSTEMS 1 t4C - T U
1 u 1 Z4 3�'44 U4:[Re
Kemediczl_, em Es" s
66 Leonard Street
Foxboro, Mk 02036
3.15 2
[phone]
Low Profile Air Stripper
Design Calculation
Project:
Fire Station No.
Customer:
PSI
ModelTS-
Water Temp
60
'F
!fir Temp
60
f
Ratio
600
VIV
Air Flow
400
CF
Water Flowrate
S
GP
Slower Motor
I .5 HP
230/11£0
Influent
Effluent r _tray)
1 2 4 3
4
S *-S
Y Tof l' lt>s
Contaminant
WE
/t
( , cPLi�> )
� �
R
1,686.0
97.71 176.1 ! 4.0 0.1
.0
�
� 1OCI.Ct OF48
Ir 16,630,0
97.49 3 2. 9.8
0.O
, ! 0.0
1 100.0 t94
jry c
987.f�
97a69 22.8 � 0.5 � 0.0
,
c}.�i
� 0.0:00.0
Ftk�
97.76
1 f�9.8 2.5 ?.
C1<C}
100.0 1 0.29, 1
i 113,031,0
86.26 11790.5 1 246b .8
4.6
0.6 11602
0.78
2 0
85.76` 35.01 5.0 0.7
0.1
1 0.0 1100.0
0.01
2, -
169.0
90. 8 16.8 1 a7 0.2
1 OOFC? O.C?1 1
MB
109.0 °
68,41 A 10.9 3.4
1.1
I.3
9.7 0,01
M&hyse ChIcnde
1
90.96 61 1 2.6 0.1
0.0
0.0
100.0 O.O
n

Liquid Phase GAG System Calculations
Fire Station No. 9
429 McKee Road
Charlotte, North Carolina
PURCHASE OF 55 GALLON CANISTERS WITH 200 POUNDS OF CARBON CARBTROL MODEL L-I
Iiesi Parameter Chits
Quantity
No. of Rows
1
No. of Canister ow=(minimum 2) --
2
Total No. of Canisters on Line --
2
GAC Carbon Charge/Canister lbs
20
Total GAC Charge/RowCharge/Row lbs
400
CAC Dimensions (D x SS) in. x in.
22 x 33
GAC Cross -Sectional Area ft^2
2.4
GAC Height ft
2.75
Bulk Bed Density cm^3
0.0
Carbon ParticleDiameter cm
0.09
Apparent Particle Densi v WCMA3
0.80
FLOW CHARACTERISTICS
Design Parameter Units
Quantity
"Total Groundwater Extraction Rate (Well Pump Rate) gal/min
2.0
Design Plowrate Through GAC gal/in
5.1
Flow hate per Rose gal/min
5.0
Superficial Loading Rate gp ft^2
1.9
Superficial Loading Rate cm/sec
0.1296
Superficial Loading Rate < 2+/_ gpm/ft^2
Yes
CAC Volume (per canisters ftA3
7.26
GAC Volume (per canister) gal
5.30
Empty Bed Contact Time (per row) min
2L 72
Empty Bed Contact Time (per canister) min
10,86
E.m tv Bed Contact Time per Rows > 15 minutes --
Yes
Canisters on line satisN surface loadinE rate and em tv bed contact time requirements.
Calculations by the equipment supplier, Remedial Systems, Inc., indicate that contaminants in the air stripper effluent
will be below state regulatory levels for all contaminants except phenol and EDB. The GAC is being provided to remove
these compounds, as well as to serve as a backup safety or polishing system until the performance of the air stripper
can be verified by several months of operational data. Limited breakthrough of some compounds may be allowed, as long
as levels are below regulatory -limits, Influent contaminant concentrationswill decrease With time as the site is rem "aced.
The activated carbon polishing system may be removed if the primary treatment (air stripper) has demonstrated
satisfactory removal of dissolved contaminants:

10/3 1 1/94
CA"MR01-10 Cotpotatiott Carbo," Usage Calrolation
0:44 PM
PROJECT- FIRE STATION NO, 9 CHARLOTTE NC
FLOW I" GPM-
5.00
FLOW M GPD:
7200-00
PERFORMANCE:
#CON f
P CARBON
ft CONT
#CARBON
,aNC�p�b
-92A-Y-
benzene
0.01
0.()()
0.00
0,00
0.00
Toluene
0.02
0.00
0.00
0.00
0.00
Ethylbenzene
Xylene
MTBE
12.96
0.00
1.94
0.00
0.27
Phenol
742
0.04
1.39
0.0 1
0119
Naphthalene
5.62
0,00
0.02
0.00
0.00
1,2-01chloroethane
0,14
0.00
0.19
0.00
0=03
Ethylenedibromide
115
0.01
O24
0.00
0:03
Methylene Cb1orlde
1.06
0.00
6.41
0.00
0.89
TOTALS
876.81
0.05
10.20
OV
1.42

r /94
CARBTROL* Cotparartion Catbon Usage Calcuration
6:28 PM
PROJECT: FIRE STATION NO 9 CIIARLOT-TE, NC
rt.OW IN GPM:
5.C1(?
FLOW IN CPC?.
72M0
PERFORMANCEi
0Ct7 H CARBON
1$ CONT
H CARBON
C T I
C}NCflac�bi LQAY /VA
11 "al
f11 tgal
MTBE
4.6 0.00 1,39
(}M
0.19
Phenol
687 O} 04 1.32
0.01
0,18
Naphthalene
0.1 0.00 0.00
0.00
0,00
Eth lenedibr Ide
1.1 0.00 0.02
0.00
0.00
TOTALS
692,8 O? 04 2.73
0.01
0.38

Pressure Pipe and Fitting Loss Summary
Fire Station No. 9
4529 McKee Road
Charlotte, North Carolina
e ground -water fluid properties
are as follows:'
FLUID PROPERTIES
UNITS VALUE
Temperature
deg F 60
Fluid Density
gm/mL 0.999
Fluid Viscosity
cp 1.15
Dead lass estimates are based
can the two-K method:
RECO ERY SYSTEM I.U.:
RECOVERY WELL R -01- DISCHARGE TUBING
777 777
Quantity
Units
MAI
++
30
if
N/A
.07299(
i •0
each
500#
. ,each
200#
#1
0.000000
0
each
500
#
# #### #
1
each
#
# ##
#
##
# ##Bill
0
ilk each
500
# #
#
#1
Pipe E
RF.Cc RV gvgTFM LW!
)talsi 24.23 20.07
44.3,
ING TO STOCKADE
Pipe/Fitting
Quantity
Units
K1
K2
K
Fittings Pipes
Pipe
100
if
/A
N/
---
66.90997
90 deg elbow
3
each
800
0.40
4.198722
---
45 deg, elbow
2
each
500
0.0
1.5494677
--b
Tee -through
0
each
200
0.10
0.000000
---
Tee-elbow
0
each
500
0.70
0.000000
-_-
Check Valve
1
each
2000
10.00
21.4989354
Globe Valve
0
each
1500
4.00
0
---
Ball Valve
1
each
500
0.15
0.674734
---
Entrance
1
each
160
0.50
0.61991483
---
Exit
1
each
0
1.00
1 1
---
Totals 29.54 6691
'i e and Fitting Lass Coefficient = 96.

4
1
AIRSTRIPPERTO
VARIABLE
UNITS
C ON CANISTERS
Flo ate per Canister
gpm/row
5.0
Flowrate
cfs
0.0111
Nominal Pipe Diameter
1.25
Pipe Inside Diameter
inches
1.3
Cross Sectional Area
sq. in.
1.453
Crass Sectional Area
sq. ft.
0.01009
Fluid Velocity
ft/sec
1.10
Reynolds Dumber
10095
Roughness
feet
1.00E-04
e
8.82E-04
0.0002595
0.0004973
1/f"0.5
5.583
f (Darcy)
0.0323
Velocity Head
feet
0.02
Friction Head Lass "
feet
0.74
Total Pressure Drop in Pi e & Fittitnvys =
0.7 feet
ELEVATION HEAD LOSSES UNITS
VALUE
Height of GAC Vessels feet
4
Total Elevation Head Losses =
4.0 feet
GAC Unit: Carbtrol L-
ead Loss: 0.36 ft/gpm
SYSTEM HEAD LOSSES (P S0
((feet)
1st GAC Vessel 0.779
1.8
2nd GAC Vessel 2.987
1.8
Flowmeter 1.0
2.3
Filter 3.0
6.9
Total S stem Head Losses -
12.8 feet
Total Dead! Losses
17.5 feet

,µ
Pressure Piping System Resign
Treatment System Transfer Pump
The pressure piping for the treatment ;system will consist of Schedule 40 PVC piping and
fittings. The ground -water fluid properties and system design data are summarized in the
following attachments.
Head lasses through the system will result from piping, valves, and ether pipe fittings, as well
as basses due to the system elevation requirements and process units. All system head: losses are
calculated on the head loss data summary shuts. The losses are calculated as follows:
The pipe loss coefficient is
Kpj
The fitting loss coefficient are determined by the two K method as follows.
Kfini,g= 1+K(1+1)
,,, D
The entrance and exit loss coefficients are determined by the two K method as follows:
errt i +
N,.
The head loss is
Head Loss = K x H `
where K = constant to determine the head lass in pipes, fittings and. equipment
K, = constant allows for fitting at N, = 1
K2 = constant for fitting at N,, = infinity
Nre = Reynolds number
f = Darcy friction factor
L = pipe length in feet
A pipe diameter` in inches
d = velocity head in feet
d head loss through'the carbon vessels is determined from manufacturer's literature on specific
equipment. The Darcy fraction factor, f, is determined from the Hsi-Jen Chen solution of the
Colebrook equation where pipe roughness, inside pipe diameter and Reynolds number are given.

9
Transfer Pump Specifications
Liquaid Phase GAC System
self priming centrifugal pump has been selected for transfer of the treated ground water from
the air stripper to the liquid phase granular activated carbon system. Among the factors
considered in selecting this =type of pump are availability, maintenance requirements, cost, size,
` power requirements, and ,general suitability for use in this site situation. used on the system
design flaw rate and the head requirements calculated, the selected transfer pump is:
Y fable Value Units
Flowrate 5.0 gP
Design Head 17.5 ft H20
Selection
F. E. Mayers Pump Co.
Self Priming Centrifugal pump
Model #QP-5
5 gpm at 77 feet of head
115123 V, !1-phase, 60 Hz
0.5 hp motor
or equivalent
The pumping system components shall include the following.
1. Seals to be suitable for hydrocarbon contaminated ground water service. Seals
to be teflon or equal".
. Single mechanical seal:
3. Liquid level sensors to be mounted in the a rstripper sump to operate the
centrifugal pump for high and low water levels.
4. Union pipe fittings to be provided on the suction and discharge piping of the
centrifugalpump to allow for access and maintenance.

0 7N Fax:[phone] Ju 1 1 95 12:10 P.01/02
of orth Carolina
epartment of Environment,
ep F,Hpealth and Natural Resources 4 0
D! is!() ot
Division of En�vironrnental Management
INUMANNONOW&
James B. Hunt, Jr., Governor AKi7LAmmwO
Jonathan B. Howes, Secretary ID FE F1
A, Preston Howard, Jr., P.E., Director
Facsimile Cover Sheet
To: Mike Parker
From: Dana Bolden
Phone.- 919/'733-5083, ext. 518
Fax- 919,/733-9919
2 pages, including this cover sheet.
Comments: Mike - take a look at the attached effluent sty :_ This is very
similar to a General Permit situation exo9pt for the diesel
constit uent,ri so I'm not going to prepare a formal waste load if this
look OK to you.
Dana
PD, Box 29535, 1191eigh, North Carolina 2.7626-0535 Teiephone$19-733-5083 FAX[phone]
An Equ&1 Opp oftunity Affirmative Action employer 50% recycled' I o% post-consurner paper

A. (1). EFFLUENT LIMITATIONS AND MONrFORTNG REOUIREMENTS FINAL
Permit NoNCW84,87i
Daring the period inning on the effective date of the an pertnit ti iasting until expiration, the Permitve i�s authorized to discharge from
kg
P
nitored bthe, Permittee as specifieow:
u--go shall be, limited and moy d bel
-)serialnurnber001. Suchdisc utfall(s har
04
Dlay ha[g&- LimitattQ-9.s
lbsida n i t ecif
Mea emem -1ample
aAM —Ie
D-aiIV---MA-x-. Mop ___A. jjy—Max
Erm-ency- Type-
LAAALI-0-11
Flow
Continuous Recording
I or F-
Benzene 71.4 gil 142,8 jig/i
Monthly Grab
E
Toluene 111,0 fig/I 22.0 lug/l
Monthly Grab
E
U')
1:01)
Methyl Tart Butyl Ether
Monthly Grab
E
Ethyll Benzene
Monthly Grab
E
Xylem
Monthly Grab
E
Naphthalene
morthliy Grab
E
11,2-Dichlotoethane
Monthly Grab
E
Oil and,Grease 30.0 mgil 45,0 rngll
Monthly Grab
E
Sample locations: E - Effluent, I - Influea
(Tj ' The pH shall not be less than 6.0qandard units nor greater than 9.0 standard units at the, effluent. Effluent roorrittiring shall be conducted mcwthly by
rl-
grab sample&
'Diere shall be no discharZge of floating solids- or visible,, foam in other than tra(x, arnount.".
M
LA-