NC0024970_Regional Office Historical File Pre 2018 (6)

North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
December 12, 2012
Mr. Kim Neely
CMUD-McAlpine Creek WWTP . . ..
12701 Lancaster Highway
Pineville, No Carolina 28134
Subject: June 6, 2012 Toxicity Test
CMUD-McAlpine Creek WWTP
NPDES No. NCO024970
Mecklenburg County
Mr. Neely,
Thank you for submitting the supporting information requested for the June 6, 2012 effluent
toxicity test result for the CMUD-McAlpine Creek W);VTP. All relevant information has been
reviewed by Aquatic Toxicology Unit staff, The result of the June 6, 2012 test has been
recorded as a "pass."
ach laboratory's container until all are full. Using this split sampling method avoids the
vironmental Sciences Section
21 Mail Service Center, Raleigh, North Carolina 27699-1621
,ation: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
one: 919-743-8400 X FAX: [phone] One
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Aquatic Toxic
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The aquatic tox
McAlpine Creel,
permitted that is
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samples passed,
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Division of Water Quality
September 221, 2011
UNTI
To: Rob Krebs
Surface Water Protection, MRO
rough: Cindy A. MoorcL�A/\
Supervisor, Aquatic Toxicology Unit
In: Carol 1-follenkamp
Quality Assurance er, Aquatic ToxicologyUnit
ect: Whole effluent toxicity test results
CMUD-McAlpine Creek WWII'
NPDES Permit # NCO024970/001
Mecklenburg County
icity test using flow proportional composite samples of effluent discharged from CMtJD-
WWTP has been completed. CMUD-McAlpine Creek WWTP has an effluent discharge
64 million gallons per day (MGD) entering McAlpine Creek (7Q10 of 0.3 CFS). Whole
11-1 -,- 11 ---1 Ir I --- 1--l— ---1 -
,m,ijay. ivAivity kvzt ti
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Test Conce
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st Type 3-Br(
'a] 100%
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al 100% at 100
an 283 neonate
cr than the 90% whole i
100% sample
,entration
First Sample pH T33 SU
First Sample Conductivity 603 micromhos/cin
First Sample Total Residual Chlorine <0. I mg/L
Second Sample pH 7A8 SU
Second Sample Conductivity 665 micromhos/cm
Second Sample Total Residual Chlorine <0, I rng/L
Test results for the above samples indicate that the effluent would not be predicted to have water quality
impacts on receiving water, These samples were split and sent to Meritech., Inc. The chronic CeriotialAnia
dubia multiple dilution test conducted by Meritech also resulted in a ON = >1 00%. Please contact us if
further effluent toxicity monitoring is desired. We maybe reached at [phone]
Basin: CTB34
cc: Central Files
John Lesley, MRO
Aquatic Toxicology Unit Environmental Sciences Section

\NA Michael R Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
CO
Alan W. Klimek, P.E. Director
Division of Water Quality
February 16, 2005
A
CERTIFIED MAIL WO
RETURN RECEIPT REQUESTED
Mr. Barry Gullet F E EB 1 7 ',?,C) !i
Charlotte Mecklenburg Utility Department
5 100 Brookshire Boulevard
Charlotte, North Carolina 28216
V SUBJECT: NOTICE OF VIOLATION
Whole Effluent Toxicity Testing
NPDES Permit No. NCO024970
CMUD-McAlpine Creek WWTP
Mecklenburg County
Dear Mr. Gullet:
This is to inform you that a review of your toxicity self -monitoring report form for the month of December 2004
indicates a violation of the toxicity limitation specified in your NPDES Permit.
You should take whatever remedial actions are necessary to eliminate the conditions causing the effluent toxicity
violation(s). Your efforts may include conducting a Toxicity Reduction Evaluation (TRE), a site -specific study designed
to identify the causative agents of effluent toxicity, isolate the sources of toxicity, evaluate, the effectiveness of toxicity
control options, and confirm reductions in effluent toxicity. Please be aware that North Carolina General Statutes provide
for assessment of civil penalties for violations of NPDES permit limitations and requirements.
The reverse side of this Notice contains important information concerning your Whole Effluent Toxicity
Monitoring and Reporting Requirements, Please note appropriate mailing addresses for submitting your Discharge
Monitoring Reports (DMRs) and Aquatic Toxicity (AT) Test Forms. We encourage you to review this information; if it
me or Mr. Kevin Bowden with this office at (9t9) 733-206.
Sincerely,
V
Matt Matthews
Aquatic Toxicology Unit Supervisor
cc: ffice
John Lesley -Mooresville Regional Office
Central Files
One
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North Carolina Division of Water Quality 1621 Mail Service Center Raleigh, NC 27699-1621 Phone [phone] Customer Service
Interriet www.esb.enrstate.neus 4401 Reedy Creek Rd, Raleigh, NC 27607 FAX [phone]
An Equal OpportunitylAffirmative Action Employer— 50% Recycled/1 01/6 Post Consumer Paper

WHOLE E FL
rxi city testing and
to the pernat requirement and tl
ately filed.
North Carolina Division of WE
Central Files
1617 Mail Service Cer
Raleigh, NC 27699-1 t
IN ADDITIO
Toxicity test data (original "AT" form) must be sut
North Carolina Division of W,
Environmental Sciences
1621 Mail Service Cet
Raleigh, North Carolina 27(
A 'Toxicity test condition language comE
of any single quarterly toxicity test, I
multiple concentration toxicity tests
completed will be accepted, If your
single quarterly test, you may choose
the Division's WET enforcement initi
Division's enforcement response.
Toxicity testing months are specified'
requirements (eg if the testing month
must be conducted during these morn
' if your NPDES hermit specifies episc
provide written notification to the Enr
of the calendar year.
If you receive notifications from your s
Sciences Section at [phone] ai
follow-up testing will occur.
Ives effective July 1, 1999, Folio,
S� if your facility is required to conduct toxicity testing during a month in which no dis
block located at the top of the AT form indicating the facility name, permit number,
subject report. You should also write, "No Flow' on the AT form, sign the form and
The Aquatic Toxicity Test forms shall be signed by the facility's Operator in Re pori
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albli uc wrn11Vu cry Luc. rrce'lut Audi' aau aura" via —
To determine if your AT test forms were received on time by the Division of Water Qu
test results certifrted mailreturn receipt requested to the :Environmental Sciences'Sectio
)Mowing address:
an aft d vs after the end of the retiortine

PPPPPP' State of Nortb Carolina
Department of Environment and Natural Resources
Divisiori of Water Quality
919 North Main Street Mooresville, North Carolina 28115
March 11, 2002
q
CERTIFIED MAIL
RETURN RECEIPT REQIMSTED
Mr. Barry Gullet
Charlotte Mecklenburg Utility Department
5 100 Brookshire Blvd.
Charlotte, North Carolina 28202
SUBJECT: NOTICE OF VIOLATION
Whole Effluent Toxicity (WET) Testing
Copper and Zinc Action Level Policy
NPDES Permit No. NCO024970
C'Mill -McAlpine WWTP
Mecklenburg County
Dear Mr. Gullet:
This is to inform you that a review of your toxicity self -monitoring report form for the month of
December 2001 indicates a violation of the toxicity limitation specified in your NPDES Permit. You
should undertake necessary actions to eliminate or reduce effluent toxicity to acceptable levels.
In addition, this correspondence contains important information on the Division's Copper and
Zinc Action Level Policy which is triggered by two or more toxicity limit violations that occur during
the toxicity testing calendar quarter specified by the toxicity testing special condition of your NPDES
Permit. Attachments addressing, policy implementation and a copy of the Division's Toxicity Reduction
Guidance have been included with this Notice of Violation.
You should initiate follow-up toxicity testing upon a single WET test failure which occurs
during the toxicity testing calendar quarter.
Your facility is currently monitoring for copper and/or zinc and is exceeding the action level for
these parameters. The policy states that whenever a facility experiences two or more toxicity limit
violations during a toxicity testing calendar quarter, the NPDES Permit will be modified to include
numeric limits for copper and/or zinc UNLESS the permittee provides one or more of the following:
L Instream measurements of dissolved metal during low flow conditions that demonstrate
compliance with the Action Level standard
2. A revision of the prospective permit limit using improved inputs that in concert with
existing or additional monitoring data demonstrates compliance with the Action Level
standard
3. Toxicity Identification Evaluation (TIE) results that definitively rule out copper and/or zinc
as causes of effluent toxicity
4. Demonstration by an alternative method approved by the Division and EPA that copper
and/or zinc is not the cause of toxicity

copper and/or zinc action level criterion and a translator procedun
zinc permit limit is 137 p /L.
The permittee, upon experiencing two or more toxicity
testing calendar quarter must either provide DWQ? with.
a) Written notification indicating acceptance of the pr+
and/or zinc hermit limit. Notification is due within 3(
the second WET Notice of Violation.
OR
)ring data. The Division has also<
,Is instream waste concentration. the
Based on this data your prospective
limit violations during a toxicity
>pective copper
days after the date of
one of this correspondence. Notification is due within 30 days after the date
of the second WET Notice of Violation. DWQ approval of options 1-
(previous page) is not necessaryas the Division expects work to rule out
capper and/or zinc as causative effluent toxicants to begin immediately upon
the second WET permit limit violation.
Written notification. (a or b above) shall be sent to:
North Carolina Division of Water Quality
Environmental Sciences Branch
Aquatic Toxicology Unit
121 Mail Service Center
Raleigh, North Carolina 27699-1 21
Please note that if you choose item b) above, you will be given nine months to submit
documentation that eliminates copper and/or zinc as causative effluent toxicants. Your final report
should be comprehensive and include all data used to support your conclusion(). Should the data
indicate copper and/or zinc as the source of effluent toxicity or if the data are inconclusive as to copper
and/or zinc's role as a tonicity source, then the NPDS Permit will be reopened and the metal limits
specified above will be applied to the permit. The report is clue nine months after the date of the second
WET Notice of Violation.
Three copies of the final report shall be submitted to:
North Carolina Division of Water Quality
Environmental Sciences Branch
Aquatic Toxicology Unit
121 Mail Service Center'
Raleigh, North Carolina 27699-1621
You should consider submitting the above correspondence certified mail.
Failure to notify DWQ of your acceptance of a copper and/or zinc limit, failure to notify
DWQ of your option selection or failure to make acceptable demonstration to DWQ that copper
:and/or zinc are not causative effluent toxicants within the stated time frames will 'result 'in
reopening of the NPDES Permit to include appear and/or zinc numeric limitations, as appropriate.
Please note that your actions to notify DWQ of prospective limit acceptance or to notify DWQ
of plan option(s) and subsequent submission of a plan are contingent upon two or ore toxicity NPDES
permit limit violations occurring during a toxicity testing calendar quarter.

If the effluent is toxic, then we expect work to commence immediately with toxic effluent
pies. Failure to initiate work with toxic effluent samples during the study period is unacceptable and
be considered a failure to make acceptable demonstration as cited above. We recommend a
mum of three separate sampling events during the nine month period to definitively rule out copper
or zinc as causative effluent toxicants.
Also note that the WET limit will remain in your NPDES permit regardless of whether metals
he source of effluent toxicity. The data resulting from your actions to disprove copper and/or zinc as
L,
ces of effluent toxicity will determine whether NPDES Permit limits will be assigned for these
meters. You are, responsible for initiating actions to address these issues.
You may consider entering into a Special Order by Consent (SOC) with DWQ. A SOC provides
latory relief for specific NPDES permit limit violations and, if signed, will contain a requirement to
luct a Toxicity Reduction Evaluation, The SOC will contain a compliance schedule, stipulated
dries for failing to meet milestone activity dates and may contain upfront penalties to settle past
pit limit violations.
Additional information regarding the Division's copper and/or zinc action level policy can be
id at the following web site - ht4)://www.esb.enr.state.nc.LLq. Click on the"Aquatic
icology" Unit and go to the prompt "DOWNLOADS" located at the bottom of the page. This web
also contains EPA's "Toxicity Reduction Evaluation Guidance for Municipal Wastewater Treatment
as." Section 4 of this document contains pertinent information on Toxicity Identification
[nations.
If you have any questions concerning this correspondence, please contact me at [phone]
It. Matt Matthews, Supervisor of the Aquatic Toxicology Unit at [phone].
Sincerely,
D. Rex Gle'ilson, P.E.
Regional Water Quality Supervisor
TS
�ville Regional Office (no attachments)
Nilson-NPDES Unit (no attachments)
Tom Poe -Pretreatment (no attachments)
Lydia Mayo-USEPA Region IV, Atlanta Federal Center, 61 Forsyth St., SW, Atlanta, GA 30303
(no attachments)
Central Files (no attachments)
Aquatic Toxicology Unit Files (no attachments)