NC0089729_Regional Office Historical File Pre 2018

y CCC
Govemor
M1CHINEL S. RECiAN
Smmtwy
UNDA CULPEPPER.
Inter'Interfm Director
. Douglas Pierotti, P.G,
City of Charlotte
600 Bast Fourth St.
Charlotte, NC 28202
August 14,2018
Subject: ssuance of NPDES Permit NCO089729
Myrtle/Morehead Storm Drainage Improvement
Grade I Physical Chemical WPCS
Mecklenburg County
Dear Mr. Pi ott:
The Division of Water Resources (the Division) hereby issues the attached NPDES permit for the subject
facility. This pennit is issued pursuant to the requirements of Nowt Carolina General Statute 1 -21 .1
and the Memorandum of Agreement ment between North Carolina d the U.S. Environmental Protection
Agency dated October 15, 2007, or as subsequently amended.
e following changes have been made for the final permit:
• The 1 A NCAC 02B standard for Trichloroethyl e is 30 ll. The limit of 3 ;Igil was a e-0.
The monthly average and daily maximum limit has been corrected to the water quality standard.
• The facility classification has been added to the effluent Inge Part I, Section A. (1), In
accordance with 1 A NCAC 08G .0302, the facility has been classified as a Grade I Physical
Chemical Water Pollution Control System.
• Additional VOCs have been added for the final permit wits monthly eftluent monitoring.
parameters were detected in groundwater data submitted with the application. Therefore,
monitoring and limitation is required as follows [see Pad IL Section A. (I.)]:
Toluene I1
�
_. 3ti1t ll I 11t
l �zrcr lbe era t. .I t 772 50'al= C} lell.
n—ut lbenz e i !] _ a 34
I'ro lbera e e i l.� 77224 80
11,2,3-' rxchlor ,ro e i"Lt r`Lw 77443 0. 01 1 �;�Z 0W,20ug/L
001 � l�
_�_.�
1�s�romvltoluene 03908 320 AIL
See-Bu ben ene (it �.�.�. Monitor & e�zi
�_
. Re .
ortti a.,arali zwa Q).azaru La"t .d cnviromnopw uaiit,y Division ws W at ',, ries.tLrif.."w
512 Nord ",„° A,st?dar? Strea,,T, ? ;S 1 `Mai! Se rioe ..,..rt! ,,: Ueigh, .N`_ rt & caroiria k 6 ?a: 1,.

P erottt
August 14, 2d18
Page 2 of 2
April 4, 2018,
' aiives lysis(E ) was received n
Additional info anon for the engineeringCharlotte's Viewer use Chd` ce, e
° 8 and May 2, 2 �.8. Charlotte `water indicated of publicly owned Treatment i�orks
April W) does
groundwater discharges per the City
t )does t t tion gall `es, ex -situ
ltcation o w water, ' infeasible as
Division concurs that alternatives such as 1 ap '
treatment injection, d a sewer co �.etion cost prohi i doortechnologically
comp to a NPDES discharge. t
arts, measurement- frequencies, or piing requirements contained in
ut i sub ttedi wi y
If pto adjudiao y he "ng, upon writt re
unacceptable, you have the right west must e the form c f a written
petition cctnfo
(30 days after receiving this letter. Your' d you must file it with the offi e of Administrative
Chapter 1 0B off orth Carolina General iatu Carolina 7699- 71 .finless s a demand
e°ngs, ce
is
North
6714 Mail Service Center, eigh, made, this 't shall remain d g
e t this Perunt is not transferable except t after notitce to ape DivztsidO
The Division May
Please not s not affect the legal
require modification or revocation d reissu ce r
` ements to Obtain other its which may e required by the Division o Water
Resources Or any
requirements is t ay be required'
other Federal, State, or Local government permits d
at
enar
1f you have questions, or if we can be of
er semce,Please contact Derek D
derek.d d ned .gov] or call (919) 8 7.6 07.
/R:especfly, ,.
Linda Culpepper, Interim
Division of dater l e ca �es, CI E€
Enclosure:NpDES p `t NCO089729 (Issas ce E'
e: Central Files piles
DES program
0 "Files/ Ann: Corey Basinger
c, ov
ec: ichard Farmer (�iichard. er mecklenburgeo g
Aquatic ToxicoloVf Unit/ Susan Meadows (Susan-meado s ncd r.gcv]
Douglas pi ai, [[e-mail]1
Al Quarles [A1,Quarles atcgs.c0Ml

DES Permit NCO089729
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
per`
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
d regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended
City of Charlotte
is hereby authorized to discharge wastewater from facility located at the
Myrtle/Moreheadto ra ` a e Improvement
Charlotte, NC 28203
Mecklenburg
to receiving waters designated as an unnamed tributary to Little Sugar Creek ek in the Catawba "verr Basin
in accordance with effluent limitations, monitoring requirements, d other conditions set firth in Parts
I, II, III, and IV hereof
The it shall become effective September 1, 20 18.
This permit and the authorization to discharge shall expire at midnight onAugust 31, 2023.
Signed this day August 14, 2018.
Culpepper, Interim Directs -
Divi ion of dater Resources
By Authority of the Environmental Management Commission
Page 1 og`

DES Permit NC 0897 9
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts to the receiving strewn, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls,
shall constitute an invalid test and will require immediate follow-up testing to be completed no later
than the last day of the month following the month of the initial monitoring.
A. 3a) ELECTRONIC REPORTING OF MONITORING REPORTS
.. -2 .
Federal regulations require electronic submittal of all discharge monitoring reports Rs) and program reports.
The imal NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015,
NOTE: This special condition supplements or supersedes the following sections within Part Li of this permit
(Standard Condition for APDESPermits):
• Sections B. (11.) Signatory Requirements
• Section D. (2,) Deporting
• Section D, (6,) Records Retention
• Section E. (.) Monitoring Reports
lffi a `ta �rn� a ants Sao cedes Seti+�ri aasti a 'crn S. a
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application:
Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted
electronically using eDR, The cDMR system allows permitted facilities to enter monitoring data and
submit DMRs electronically using the rote et. Until such time that the tate's eDMR application is
compliant with EPA's Cross -Media Electronic Reporting Regulation (C t ), permittees will be
required to submit all discharge monitoring data to the state 'electronically using eDMR and will be required
to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the
computer printed eDMR to the following address;
C DE l Division of dater Resources / rater Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being
physically located in an area where less than 10 percent of the households have broadband access, then a
temporary waiver from the NPDES electronic reporting requirements may be granted and discharge
monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by
the Director. Duplicate signed copies shall be submitted to the nailing address above, S "How to Request
a Waiver from Electronic Reporting" section below,
Regardless of the submission method, the first 13MR is due on the last day of the month following the
issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Page 6 of 8

DES Permit I CO0 9'729
SUPPLEMENT TO PERMT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby;
revolted, and as of this i s nce� any previously issued pen -nit beating this number is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, e it ent , tenns, and provisions described herein.
City of Charlotte
is hereby authorized to;
l . begin operating a U 0 MGD dewatering and groundwater remediation system consisting of, but not
limited to;
groundwater trenching project
weir equalization t (as needed)
a holding / settling tank
two (2) bag filters in parallel for sediment to remove sediment
an air stripper with f0 ( trays, a rate 50 gpin, air max @350 c ; Carbonair STAT 80 or
equivalent
o (2). bags filters in parallel following the air stripper
transfer pumps and appurtenances
discharge outalls to storinwater drains
located at a proposed storm, drainage improvement construction area between South Bld4, South
Caldwell St., Templeton .Ave,, Euclid Ave.,Rensselear Ave.,`and Cleveland Ave., in Charlotte,
Mecklenburg County; and
. discharge from said treatment works via Outfalls 001 and 002 at a location specified on the attached
map, into ed tributary to Little Sugar Cr [Stream Segment 11-137- currently a Mass
C waterbody within Subbasin 03-0 - 4 1- UC: 030 0103010 ] of the Catawba River Basin.
Page 2 of

ICES Permit NC"O089729
PART I
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
15A NCAC U2B .0400 et seq., 02B .0500 et seq.
Grade I Physical Chemical Water Pollution Control System ( f 5A NC AC 08 ,030
Beginning on the effective date of the permit and lasting til expiration, the Permittee is authorized to discharge
from Outfalls tail and 002. Such discharges shall be limited' andmonitored' by the Permittee as specified below:
EFFLUENT CHARACTERISTICS LIMITS 1'VIONITORJNG REQUIREMENTS
[Parameter Code] M.ontldy Daffy Measurement Sar(r t Sample Locations
Re 2
Average um' Frequency Type
Flow Gib) 50050 0 050MGD Continuous Recording E
Total Suspended Solids (TSS) C0530 30.0 mg/L 45,0 mg/L Monthly Grab E
da t 00070 50 NTU 1 50 NTU Monthly Crab
T idtc l l 3' 4 00070 Monitor Report monthly � b � U, D 4
w .._.. )ti.: a .._.,, _...w.
PH (o) 00400 fi 0 d ,< 9,0 su Monthly � Grab E
` Method 1664 SG i FL i i ° 00556 Monitor cod Report � Monthly Grab 1 E
cis-1 2 Dichloroethylene (Ag/L) 77093 720 g/L, ° 720 pmonthly Grab E
Tetrachloroethylene (gg/L) 34475 3.3 ug/JL 33 gg/L Monthly Grab E
trans-1,2-Dichloroethylene (mg/L) 34546 1 3 mg/ mg/L Monthly {;grab
Trichloroethylene (Ag/L) (ja /L) 39180 0 pg/L 30 gg/L Monthly Grab E
.. ...w w .__. -,. i _..; --- °
Vinyl chloride (µme) 3 175 ' 2 4 µgr'L 2.4 gg/L Monthly Grab t E
ylenes ( gtL) 81551 670 4WL, 670 pg/L Monthly grab E
IJ-Dichloroeth l ie 34501
3' (l��L) � 20 gCL: ' 20 mg/L Monthly drab
Chloroform ( g/L) � 321t76� 2 mg/L 2 mg/L monthly (arala 1�
I'.,.. �, m��.��� —... �
2-Butanone (mgtl.,) 783 6 26 mg/L 26 mg/L Monthly Grab E
l,l-L)ichloroethane (pg/L) 34496 100 100 Monthly Grab
1,2,4 l ri methylbenz ne (pgiL) 77222 390 Ag/L 390 fig,°L monthly Grab E
Toluene (gg/L) 34010 11 jg/L, i i Monthly Grab
lsopropylbenzene (pg/L) 77223 250 µg/L 250 g1L Monthly Grab E
,
n Butylb zene (Ag/L) 77342 1 3 lzg/L 3.9pg/L Monthly Grab E
m Propylbe ene (pg/L) 772 4 80 jig/L 80
,. p Monthly . b
E
1,,34rzchloropro (jig/L) 7744-3 Of11 gg/L 0,001 gg/L Monthly Grab
p lsopropyltoluene 03908 320 µme, � 320 pg/L Monthly Grab � E
2-Chlorotoluene (pg/L) 38681 Monitor & Report Monthly Grab E
Sec Butylben ene (pg/L) 77350 Monitor & Report Monthly Grala l
t E lbe ene (Ag/L) 773.53 Monitor & Report Monthly ; (grab E
Total Copper ( g/L) 01042 e monitor & Report Monthly Grab E
Hardness - Total as a
[CaCO3 or (a Mg} (mil) 5 0900 monitor & Report M tirly Grab E
Hardness Total as
4,6 0 900 Monitor & Report monthly Crab U 4
Effluent parameters and footnotes continued next page,
Page 3 of

ICES Permit NCO0 972
A. 1,) Continued.
FEFFFILUENT CHARACTERISTICS IT MONITORING REQUIREMENTS
—vamp—It
[Parameter Cade] Monthly Daily measurement Sample
A.v Fr+e+qu cy Type Locations
TGP Monitor art Quarterly Grab E
Chrome SET testing Report y
Organics, Total Purgeables( VOCs) . 76029 Monitor & Report Annually Grab E
Base Neutrals & Acids (-ViCs)
g 76028 .'Monitor & Report .Annually Grab
Amp„ .: ) tlA )
Footnotes:
I . The Permiftee shall begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR
application system.. See Condition A (3)e
2. E = Effluent; U = upstream; D = Downstream
3. Turbidity; Effluent turbidity shall not causereceiving-stream, turbidity to exceed 50 NTU. If background
turbidity naturally exceeds 50 NTU, the effluent shall not cause background turbidity to increase. Any
discharge exceeding this permit limit will require sufficient instream sampling (tipsand/or downstream)
to verify compliance (effluent vs. background), [NCAC 02 .021 1;(21)]
4, If no stream flaw is available to sample, indicate "no stream flow' on D
5. Effluent hardness sampling should be performed in conjunction with sampling for hardness dependent metals
(Copper).
6. The Permittee shall sample instream, hardness, upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream.
7. Chronic Whole EffluentToxicity (WET) testing (Ceriodaphnia dubia) 7-day chronic pass/fail test, permit
limit, at 0% in March, Jane, September and December. See condition A. (3.).
For the eDMR application system, any detections "tio shall be reported by entering "I" [Yes (' =2 I and n
detection shall bereported by entering "0" [NO (N) = 01. Any detections for Total Purgeables Organics (EPA
:Method 62 )car Ease Neutrals &Acids (EPA Method 62 )-shall be noted in the comments section by noting
the compound detected and reported concentration. Laboratory reports shall be kept on Tile in accordance with
cords retention requirements found in Part H. Section D. Ca.
Conditions:
• There shall be no discharge of floating solids or visible foam in rather than trace amounts.
• Discharge shall show no evidence as a source for oily film or sheen on the receiving stream.
Page 4 of

<
NPDES Permit N O0 72
A. CHRONIC TOXICITY T LIMIT (QUARTERLY)
e effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Cetiodaphnia dubia at an effluent concentration of"%.
The permit holder shall perform t a minimum, yq rl monitoring using test procedures outlined in
the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Devised December ber 2010, or
subsequent versions or "North CarolinaPhase 11 Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. e tests will be performed during the months of
January, A r% July and October. These months si . i f y the first month of eachthree-month toxicity
testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during
representative t discharge and shall be performed at the N'DES permitted finale dent discharge
below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV
below the permit limit, then multiple -concentration testing shall be performed ait a •n* u
eachof the two following ont s as described in "North Carolina hase H Chronic Whole
Effluent Toxicity Test Procedure" (Revised -December 2 10) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR- 1) for the months in which tests were performed, using the parameter
de TGP311 for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR FormAT-
3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-162
Completed Aquatic Toxicity Test Forms slut be filed with the rater Sciences Section no later than 0
days after the end of the reporting period for which the report is made,
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data,d be certified by laboratory supervisor and O C or approved designate
signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if
chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top ofthe aquatic toxicity (AT) test
forni indicating the facility name, permit number, pipe number, county, and themonth/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Water Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring
will be required during the following month. Assessment of toxicity compliance is based on the toxicity
testing quarter, which is the three month time interval that begins on the first day of the month in which
toxicity testing is required by this permit and continues until the final day of the third month.
Page 5 of 8

^
� -
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable-
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver
from Electronic Reporting" section below),
2. Electronic Submissions
In accordance with 40 CFR 122-41(l)(9), the permittee must identify the initial recipient at the time of each
electronic submission. The permittce should use the EPA's website resources to identify the initial recipient
for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or
the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving
FTIA plans to establish a website that will alst) link, to th appropriate electronic reporting lool lbr cacti t. e oif
efectronic submission and ft'ir each state. Irmnictions oil how to access and use the appropriate electronic
rept,'�ning tool will he available as, well, Inforniation on, EPA's NPDES Electronic Reporting Kule is found ai�
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above,
3.
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division.
Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written
approval at least sixty (60) days prior to the date the facility would be required under this permit to begin
submitting monitoring data and reports. Tbe duration of a temporary waiver shall not exceed 5 years and
shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the
Division unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by the
Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved
reporting waiver request may submit monitoring data and reports on paper to the Division for the period that
the approved reporting waiver request is effective,
Information on el)MR and the application for a temporary electronic reporting waiver are found on the
following web page:
All el)MRs submitted to the permit issuing authority shall be signed by a person described in Part 11, Section
B. (I L)(a) or by a duly authorized representative of that person as described in Part U, Section B. (I 1.)(b). A
person, and not a position, must be delegated signatory authority for eDMR reporting purposes.
Page 7 of 8

N-PDES Permit NCO08972
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and
login credentials to access the eDMR system. For more information on North Carolina's eDMR system,
registering for eDMR and obtaining cDMR user account, please visit the following Deb page:
sa=gay., ?. ..°.,
Certification. any person submitting an electronic DMR using the state's eDMR system shall make the
fallowing certification [40 CFR 122.22], NO OTHER R 'TAT CERTIFICATION WILT, BE
ACCEPTED:
"I certify, under penalty of Cave, that this document and all attachments were prepared under my direction or
supervision in accordance rce with a systems designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry 9f theperson or persons who manage he system, or
those personas directly responsible for gathering the 'irtfo titan, the information submitted is, to the best rrf
tray knowledge and belief, trace, accurate, and complete, I arts aware that there are signifi ant penalties for
s abr itti ag false information, including the passibility of farces and imprisonmentfor knowing violations. s'
5. Records teniico n Ie crate lnn fi.l
The permittee shad retain records of all Discharge Monitoring Reports, including eDMR submissions. These
records or copies shall be maintained for a period of at least 3 years from the date of the report. This period
may be extended by request of the Director at any time ER 122.41 J.
Page 8 col'

City a Charlotte
Outfal] 001: 3 .214Q94° N.-80..852786O W
SCALE OutfaII002: 35.2152190N. - 0MI03 6W
1:12, NC' farad: G 15NE 1 USGS Quasi. Charlotte E, NC: