NC0081426_Regional Office Historical File Pre 2016

North Carolina Department of Environment and Natural Resources
Pat McCrory Donald van der Vaart
Governor Secretary
June 3, 2015
CERTIFIED MAIL # 7009 2250 00041083 6494
RETURN RECEIPT REQUESTED
Mr. Steven Drew, Director
Water Resources Department
City of Greensboro
P.O. Box 3136
Greensboro, NC 27402-3136
Subject: Notice of Violation and Recommendation for Enforcement
Sodium Hypochlorite Spill - City of Greensboro Mitchell WTP
NPDES Permit No. NCO081426
Guilford County
Dear Mr. Drew:
On May 4, 2015 at approximately U:31. pm the Mitchell WTP had an unreported spill of
sodium hypochlotite, whi`-S.was washed irito a floor: drain that is connected to the waste clarifier.
Excessive chlorine was subsequently discharged from the waste clarifier through outfall # 001
causing a fish kill in North Buffalo Creek, class "C-NSW" waters in the Cape Fear River Basin.
Below is a summary of the specific NPDES permit conditions that were violated and the North
Carolina water quality standard that was violated due to the event (see attachment for complete
wording of permit conditions and the water quality standard).
o Failure to take all reasonable steps to prevent any discharge with a reasonable
likelihood of adversely affecting the environment.
® Failure to properly operate and maintain all facilities and systems of treatment to
achieve compliance with the conditions of the permit.
• Failure to report any noncompliance orally to the Division within 24 hours and file
a written report within 5 days following the occurrence of an event that potentially
threatens the environment.
v Failure to notify the Division with 24 hours and file a written report within 5 days
following the occurrence at a water pollution control facility which results in the
discharge of significant amounts of wastes which are abnormal in quantity or
characteristic.
e Rendering North Buffalo Creek unsuitable for aquatic life propagation and the
maintenance of biological integrity.
450 West Hanes Mill Road, Suite 300, Winston-Salem, NC 27105
Phone: [phone] \ Internet: www.ncwaterguality.org
An Equal Opportunity \Affirmative Action Employer — Made in part by recycled paper

Mr. Steven Drew
Page # 2
June 3, 2015
A Notice of Violation/Notice of Recommendation for Enforcement (NOV/NRE) is being
issued for the noted violations of North Carolina General Statute (G.S.) 143-215.1 and NPDES
Permit No. NC0081426. Pursuant to G.S. 143-215.6A, a civil penalty of not more than twenty-five
thousand dollars ($25,000.00) may be assessed against any person who violates or fails to act in
accordance with the terms, conditions, or requirements of any permit issued pursuant to G.S. 143-
215.1. If you wish to provide additional information regarding the noted violation please respond in
writing within ten (10) days after receipt of this Notice. A review of your response will be
considered along with any information provided in the previous response from the City of
Greensboro dated May 28, 2015. You will then be notified of any civil penalties that may be
assessed regarding the violations. If no response is received in this Office within the 10 day
period, a civil penalty assessment may be prepared.
Remedial actions, if not already implemented, should be taken to correct any problems. The
Division of Water Resources may pursue enforcement actions for this and any additional violations.
If you have questions concerning this matter, please do not hesitate to contact Mike Mickey or
me at [phone].
Sincerely,
J � Ss'
W. Corey Basinger
Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources
cc: Barry Parsons ([e-mail])
SWP Central -Files Ies

r'
Greensboro Mitchell WTP
NPDES Permit No. NCO081426
Permit Condition Violations:
Part I.I. Section B), Condition (2) — Duty to Mitigate: The Permittee shall take all reasonable steps to
minimize or prevent any discharge or sludgeuse or disposal in violation of this permit with a reasonable
likelihood of adversely affecting human health or the environment [40 CFR 122.41(d)].
Part II. Section (C), Condition (2) — Proper Operation and. Maintenance: The Permittee shall at all times
.properly operate and maintain all facilities and systems of treatment and control (and related appurtenances)
which are installed or used by the Permittee to achieve compliance with 'the conditions of this permit. Proper
operation and maintenance also includes adequate laboratory controls and appropriate quality assurance
procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only when
necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)].
Part II. Section (E), Condition (6a) — Twenty-four Hour Reporting: The Permittee shall report to the Director
or the appropriate Regional Office any noncompliance that potentially threatens public health or the
environment. Any information shall be provided orally within 24 hours from the time the Permittee -became
aware of the circumstances. A written submission shall also be provided within 5 days of the time the
Permittee becomes aware of the circumstances. The written submission shall contain a description of the
noncompliance, and its cause; the period of noncompliance, including exact dates and times, and if the
noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or
planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40 CFR 122.41(1)(6)].
Part H. Section (E), Condition (9) — Noncompliance Notification: The Permittee shall report by telephone to
either the central office or the appropriate regional office of the Division 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 water pollution control facility which results in the discharge of significant amounts
of wastes which are abnormal. in quantity or characteristic, such as the dumping of the contents of a sludge
digester; 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 render 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 without treatment
of all or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence.
Water Quality Standard Violated:
15A NCAC 2B .0211 (2) - Conditions Related to Best Usage - the waters shall be suitable for aquatic life
propagation and maintenance of biological integrity, wildlife, secondary recreation, and agriculture. Sources
of water pollution that preclude any of these uses on either a short-term or long-term basis shall be considered
to be violating a water quality standard.

,4City of Greensboro
6,,j North Carolina
May 28, 2015
NC DENR Winston-Salem Regional Office
Div. of Water Resources - Water Quality Programs
450 West Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
ATTN: Mike Mickey
RE: Sodium Hypochlorite Spill Mitchell Filter Plant
North Buffalo Creek Water Shed
GREENSBORO, NC (May 11, 2015) — On Wednesday evening the City's Water Resources was
notified by a citizen that dead fish was seen floating in North Buffalo Creek near Latham Park.
The Water Resources Storm Water Division immediately started their investigation with our
state regulatory agency. Their investigation revealed the impaired aquatic life was noticed at or
near the Mitchell Water Plant dischargecontinuing to the Latham Park area. However
upstream, the water was not impaired and aquatic life appeared normal. The Water Resources
Water Supply Division was contacted to inquire if any treatment chemicals have been released
into North Buffalo Creek. At the time they were unaware of any discharges into the creek.
Further investigation by Water Supply Management revealed an unreported chlorine spill by a
night shift operator early Tuesday morning. Unfortunately, management did not find out about
the nature of the spill until early Friday morning. The operator stated, he "opened the wrong
valve and discharged some liquid chlorine bleach into the building drainage system". The
operator quickly discovered the error and closed the valve not realizing he released more than
his estimation. This system is constantly being monitored and chlorine is always removed or
neutralized before being allowed to enter the North Buffalo Creek. Unfortunately this very rare
occurrence happened and is not condoned by the State, City, or Department. Corrective action
and strict process control has been implemented by the Division and Department to ensure this
accident does not happen again.
Since the incident: Both operators have been briefed on proper protocol when any chemicals
are spilled. The drain in the basement has been plugged to prevent a reoccurrence. All valves
are properly tagged and a SOP is in place to ensure procedures for filling day tanks are strictly
adhered to. A spill prevention class and discussion will be conducted by Pete D'Adamo for all
management staff from Water Supply and TZO on June 5th, 2015. In addition, Peter Schneider
from Storm Water will provide a summary and consequences of the hypo spill in North Buffalo
Creek. Additional training classes will be scheduled for all employees at a later date. Attached
is the spill report from the Mitchell Filter Plant ORC, Larry Nance Jr. If you have further
questions, please contact me. Thank you!
Barry K. Parsons
Water Supply division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
Enclosures
640 P.O. Box 3136 - Greensboro, NC §7402.3136 - www.greensboro-ne.gov - (336) 373-CITY (2489) - TTY # 333-6930

Hypo Spill Report
Night shift of
May 4, 2015

Hypo Spill Report
4 May 2015
•During midnight fill, operator on duty opened valve A (labeled in service), when it was actually
out of service. The contractors worked on the lines / valves earlier but did not change the labels.
•Operator noticed that day tank wasn't being filled so he opened valve 8 (labeled out of service)
and nothing came out. At that point he heard hypo hitting the floor.
•He then shut off valve A and B.
*He then figured out that the labels on the valves were wrong.
•This was Ondrez first time filling the day tanks in this configuration. Everyone prior had no
issues.
•Approx 113 gallons were unaccounted for.
•ORC was not notified until the following morning.
*We currently have valve A locked out. This valve should have been locked out sooner.
*I'll continue to put systems in place to insure that nothing like this happens again.

Bulk Tank Configuration at Time of Spill

Current Bulk Tank Configuration
Valve was locked out 5-5-15

Pictures taken by one of the
operators the night of the spill
These pictures show that the "unsafe do
not use" valve is open to the line that
supposedly out of service when they went
to find out why the day tank would not fill.
The tags were in the wrong place.

This picture shows fill line #2
(valve B) out of service, that is
actually supposed to be in
service.
This picture shows fill line #1
(valve A) in service, when it is
supposed to be out of service.
F]

None
12:02:16 AM [ ] 00:00:00.000 5/ 6/2015 12=02:16 AM
t d
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-364 gal (0 days, 00.55:22)

Mitchell Day Tank Recorder
Ferric Day Tanks
Battictird
Total Used
Seminole
Total Used
Start "
C
Stop
33
Start
"
: Z �-
Stop
start
2C9
stop
Start
Stop2.
Start
Stop
Start
Stop
Total gals used =
1VIA
ON,
Sodium
Hydroxide Day Tanks
Filter
Pre
Total Used
Finished
Post
Total Used
start "
32
Stop
Start
13
Sto
start
Stop
Start
AZT
StopT
Start
Stop
Start
Total gals used =
Date: -S"-t ' I 5 H\(_�l
l:
Take all day tank readings after midnight oRof SCADA, the last "Stop •" will be the reading from SCADA, that
number will be brought over to the next day's paperwork on "Start •"
• Do not till day tanks prior to midnight. only ea after readings are taken.
Total all gallons/pounds used for the day on the Day Tank Recorder take this total to the Chemical Inventory
Rench Sheet. The gallonstpounds will be used to calculate the PPM' for the chemicals
Take all day tank readings after midnight oRof SCADA, the last "Stop •" will be the reading from SCADA, that
number will be brought over to the next day's paperwork on "Start •"
• Do not till day tanks prior to midnight. only ea after readings are taken.
Total all gallons/pounds used for the day on the Day Tank Recorder take this total to the Chemical Inventory
Rench Sheet. The gallonstpounds will be used to calculate the PPM' for the chemicals

14
When valve was opened. Hypo came
out of one of these 2 pipes.

Old Hypo fill lines.

Old Fluoride Room

Hypo left the MFP through this drain.

Mickey, Mike
From: Parsons, Barry <[e-mail]>
Sent: Thursday, May 28, 2015 5:27 PM
To: Mickey, Mike
Subject: Hypo Spill Mitchell
Attachments: North Buffalo Creek hypo spill.pdf; Hypo Spill Report.pdf
Mike,
Attached are our reports regarding the unfortunate incident that happened at the Mitchell Filter Plant the night of May
4th. I did not put two and two together until David Phlegar told me that the fish kill ended at our discharge point in
North Buffalo Creek. He was perplexed why it ended there. I immediately asked the Treatment Superintendent and
ORC to investigate further. Once they did SCADA revealed that there was over 100 gallons spilled into our waste clarifier
through the building drain system. A report was sent to our PR person on May 11th for a draft press release. The first
two paragraphs is what I sent to our PR person. We will do everything in our power for this type of incident not happen
in the future by educating all our staff and being more vigilant. If there is anything further you need us to do please let
us know and we will get it done for you. Thank you.
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

City
r
North
of Greensboro
Carolina
Water Resources
N. Buffalo Fish Kill Timeline of Investigation by the Stormwater Management Division
5/7/15 @ 10 am
Sewer maintenance received call about dead fish and sewer smell. Sewer crew did not notice any odor
other than decaying fish and water was clear. They continued to walk upstream and called us to assist
with possible identification of cause of fish kill.
5/7/15 @ 10:30 am
Citizen that called in dead fish states that fish were alive Tuesday evening and dead Wednesday evening.
He didn't report to the city until Thursday morning. Observed numerous fish various sizes and species (at
least 100), noted several crayfish as well. Tracked dead up to water treatment plant outfall. Noted live
fish upstream of pipe.
5/7/15 @ 2:30 pm
Started at the site of the SSO (400 Montrose) approximately 4.5 miles upstream of fish kill and
continued downstream eliminating various branches. Tracked down to arboretum and
elam/Benjamin pkwy. didn't find any dead fish.
PO Box 3136 . Greensboro, NC 27402-3136 . www.ereensboro-nc.gov . 336-373-CITY (2489) . TTY # 333-6930
640

Latham Park Photos

Al
Hill Street

Bridge at Battleground
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Mickey, Mike
From: Scalcione, Sherri <[e-mail]>
Sent: Monday, May 11, 2015 1:19 PM
To: Mickey, Mike
Cc: Schneider, Peter
Subject: summary of n buffalo fish kill
Attachments: N Buffalo Fish Kill Summary of Events.doc; Latham Park Photos.docx
Mike,
I'm headed out in the field this afternoon but wanted to get something to you. the summary is just a brief outline of our
investigation. I've attached another document of photos.
Thanks,
Sherri Scalcione, Water Quality Specialist
Department of Water Resources
City of Greensboro
Phone:[phone] Fax:[phone]
PO Box 3136, Greensboro, NC 27402-3136
www.greensboro-nc.gov
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

Mickey, Mike
From: Parsons, Barry <[e-mail]>
Sent: Friday,\May 08, 2015 5:50 PM
To: Mickey, Mike
Subject: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Mike,
I regret to inform you that we discharge chlorine into the South Buffalo creek at Mitchell. Unfortunately there was a
massive fish kill to Latham Park, Greensboro. I am still investigating the amount etc.. did not know it was us until I
started asking questions at the plant. Will try and contact you by phone. Thank you!
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

Mickey, Mike
From: Basinger, Corey
Sent: Friday, May 08, 2015 7:04 PM
To: Mickey, Mike
Subject: Fwd: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Sent from my iPhone
Begin forwarded message:
From: "Parsons, Barry" <[e-mail]>
Date: May 8, 2015 at 6:30:53 PM EDT
To: "Corey Basinger ([e-mail])" <[e-mail]>
Subject: FW: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Corey,
You can reach me by cell at (336)-430-6254 if you need additional information sooner. Thank you!
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
From: Parsons, Barry
Sent: Friday, May 08, 2015 6:27 PM
To: Corey Basinger (corey.basinger(&ncdenr.gov)
Subject: FW: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Corey,
I do not know Mike's cell # but found out this afternoon after talking to Storm Water. They tracked it
back to our discharge. I am trying to determine why the operator did not call his supervisor and why the
spill was washed down the drain and not reported. All our building drained are tied into the waste
clarifier decanted and sent to the creek. Calcium Thiosulfate is fed to de -chlorinate the water. This
event happened on Tuesday morning and received media attention yesterday. There is no longer
chlorine present in the creek. I will give you and Mike a full report once our investigation is
complete. Thank you.
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]

From: Parsons, Barry
Sent: Friday, May 08, 2015 5:50 PM
To: 'Mickey, Mike'
Subject: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Mike,
I regret to inform you that we discharge chlorine into the South Buffalo creek at Mitchell. Unfortunately
there was a massive fish kill to Latham Park, Greensboro. I am still investigating the amount etc.. did
not know it was us until I started asking questions at the plant. Will try and contact you by
phone. Thank you!
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

Mickey, Mike
From: Basinger, Corey
Sent: Friday, May 08, 2015 7:03 PM
To: Mickey, Mike; Knight, Sherri
Subject: Fwd: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Sent from my iPhone
Begin forwarded message:
From: "Parsons, Barry" <[e-mail]> .
Date: May 8, 2015 at 6:26:37 PM EDT
To: "Corey Basinger ([e-mail])" <[e-mail]>
Subject: FW: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell .
I do not know Mike's cell # but found out this afternoon after talking to Storm Water. They tracked it
back to our discharge. I am trying to determine why the operator did not call his supervisor and why the
spill was washed down the drain and not reported. All our building drained are tied into the waste
clarifier decanted and sent to the creek. Calcium Thiosulfate is fed to de -chlorinate the water. This
event happened on Tuesday morning and received media attention. yesterday. There is no longer
chlorine present in the creek. I will give you and Mike a full report once our investigation is
complete. Thank you.
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
From: Parsons, Barry
Sent: Friday, May 08, 2015 5:50 PM
To: 'Mickey, Mike'
Subject: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Mike,
I regret to inform you that we discharge chlorine into the South Buffalo creek at Mitchell.. Unfortunately
there was a, massive fish kill to Latham Park, Greensboro. I am still investigating the amount etc.. _did
not know it was us until I started asking questions at the plant. Will try and contact you by
phone. Thank you!
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: (336).373-7643
1

Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

Mitchell WTP
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NCO081426
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Mickey, Mike
From: Parsons, Barry <[e-mail]>
Sent: Thursday, June 04, 2015 10:05 AM
To: Mickey, Mike
Subject: RE: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Mike,
Very unfortunate , but I understand. This incident should have never happened. No excuses. We are truly sorry about
this. We are taking extra precautions as you know for this not to happen again. Thank you for giving me a heads up.
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
From: Mickey, Mike [ma ilto:mike. [e-mail]]
Sent: Thursday, June 04, 2015 9:44 AM
To: Parsons, Barry
Subject: RE: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Barry —Just FYI - Attached is a copy of the NOV letter that will be mailed today. Mike.
[e-mail]
NC DENR Winston-Salem Regional Office
Division of Water Resources — Water Quality Programs
450 W. Hanes Mill Road, Suite 300, Winston-Salem, NC 27105
Phone: [phone]
From: Parsons, Barry [ma iIto: [e-mail]]
Sent: Friday, May 08, 2015 5:50 PM
To: Mickey, Mike
Subject: Fish Kill, Buffalo Creek, Chlorine Discharge from Mitchell
Mike,
I regret to inform you that we discharge chlorine into the South Buffalo creek at Mitchell. Unfortunately there was a
massive fish kill to Latham Park, Greensboro. I am still investigating the amount etc.. did not know it was us until I
started asking questions at the plant. Will try and contact you by phone. Thank you!
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
1

Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.
-------------------------------------------------------
------------------------------------------------------
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

Mickey, Mike
From: Mickey, Mike
Sent: Tuesday, June 02, 2015 10:32 AM
To: 'Shandor, Marie'
Subject: RE: City of Greensboro -Mitchell Discharge NPDES Permit No NCO081426
That works. The DMRs will still need to be submitted. Just write "No Discharge" across the page. Thanks, Mike.
[e-mail]
NC DENR Winston-Salem Regional Office
Division of Water Resources — Water Quality Programs
450 W. Hanes Mill Road, Suite 300, Winston-Salem, NC 27105
Phone: [phone]
E-mail correspondence to and from this address maybe subject to the North
Carolina Public Records Law and may be.disclosed to third parties.
From: Shandor, Marie[ma IIto: Marie. [e-mail]]
Sent: Tuesday, June 02, 2015 10:28 AM
To: Mickey, Mike
Cc: Parsons, Barry; Khan, Ali; Nance Jr, Larry
Subject: City of Greensboro -Mitchell Discharge NPDES Permit No NCO081426
Good Morning Mike,
I wanted to give you the current status for the Mitchell water plant's Discharge. We are currently in the middle of on -site
construction. Mitchell's discharge is going to the sanitary sewer, and will continue until construction is complete, at the
end of September 2015.
We will not collect a second quarter 2015 Mitchell discharge. The third quarter 2015 discharge collection might not
happen too.
If you have any questions or comments, please call or e-mail me.
Thank you.
Marie Shandor
Water Supply Lab Superintendent
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
-------------------------------------------------------
------------------------------------------------------
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third parties.

A=MA A
NCD [NR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
February 23, 2015
Mr. Steven Drew, Director
Water Resources Department
City of Greensboro
P.O. Box 3136
Greensboro, NC 27402-3136
SUBJECT: Compliance Evaluation Inspection
N.L. Mitchell WTP Discharge — City of Greensboro
NPDES Permit No. NCO091426
Guilford County
Dear Mr. Drew:
Donald van der Vaart
- Secretary
On February 20, 2015, Mike Mickey of this office met with Aki Khan, Larry Nance, Marie Shandor
and Telora Kalu. to perform a Compliance Evaluation Inspection. of the NPDES wastewater discharge from
the Mitchell Water Treatment Plant (WTP). The facility was found to be compliant with the NPDES permit.
The inspection findings are detailed below and an inspection checklist is attached for your. records.
I. Permit
The NPDES. permit expires on June 30, 2016. Please be aware that at the next renewal, the permit will
require that the monthly self -monitoring reports (DMRs) for the Mitchell WTP be submitted electronically
per new EPA rules.
H. Self -Monitoring Program
The DMRs were reviewed for the period January 2014 through December 2014. The facility was found to be
compliant with all effluent limits and monitoring requirements of the NPDES permit (see data summary
attached). It was noted that. the effluent did not pass the chronic toxicity tests conducted in March,
September and December. It is our understanding that a consultant is evaluating the toxicity issue.
M. Flow Measurement
The NPDES permit requires continuous flow recording and annual calibration of the flow measuring device.
The daily effluent flow values reported on the DMRs are measured using an in -line totalizirig'met r on the
decant line. The meter was last calibrated by City of Greensboro staff on August 12, 2014.
IV. Sludge Handling and Disposal
Solids that collect in the settling basin/waste clarifier are removed on a daily basis by pumping directly to the
Greensboro North Buffalo POTW with final disposal occurring by incineration at the T.Z. Osborne POTW.
V. Operations and Maintenance
The facility. was competently operated and maintained. No problems or concerns were noted.
450 West Hanes Mill Road, Suite 300, Winston-Salem, NC 27105
Phone: [phone] \ Internet: www.ncwaterguality.org
An Equal Opportunity\ Affirmative Action Employer —Made in part by recycled paper

Mr. Steven Drew
Page 2
February 23, 2015
Vl. Facility Site Review
The treatment components for the filter backwash wastewater consist of the following: a transfer basin with
three pumps, dechlorination using calcium thiosulfate, a single settling basin/waste clarifier with four
floating decanters and water spray pump for chlorine dissipation, in -line totalizing flow meter and effluent
discharge line.
VII. Records/Reports
A comparison of the December DMR with the Mitchell WTP laboratory data for temperature, pH, residual
chlorine, turbidity and TSS showed that these parameters were transcribed accurately. The same was noted
for the quarterly parameters analyzed by Meritech. I
VIII. Effluent/Receivin$! Waters
The system discharges into North Buffalo Creek, class "WS-V; NSW" waters in the Cape Fear River Basin.
The effluent was observed to be clear on the day of the inspection.
Our office appreciates your efforts to comply with the NPDES permit. Should you have any
questions concerning this report, please contact Mike Mickey or me at [phone].
Sincerely,
Sherri V. Knight, PE
Assistant Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources
cc: Barry Parsons (via email: [e-mail])
Ali Khan (via email: [e-mail])
Larry Nance (via email: [e-mail])
Marie Shandor (via email: [e-mail])
Central Files
W� : T@—U

City of Greensboro — N. L. Mitchell WTP
NPDES Permit No. NC0081426
Self -Monitoring Data Summary
January 2014 — December 2014
Parameters
Monthly Avg.
Permit Limit
Monthly Avg. Limit
Violations per DMR
Daily Maximum
Permit Limit
Daily Max. Limit
Violations per DMR
Flow (MGD)
-
NA
-
NA
TSS (mg/L)
80.0
None
45.0
None
pH (S.U)
-
NA
(6.0-9.0) range
None
R. Chlorine (ug/L)
-
NA
17.0*
None
Turbidity (NTU)
-
NA
-
NA
Aluminum (ug/L)
-
NA
-
NA
T. Iron (ug/L)
-
NA
-
NA
T. Copper (ug/L)
-
NA
-
NA
Manganese (ug/L)
-
NA
-
NA
Flouride (ug/L)
-
NA
-
NA
Ammonia N. (mg/L)
-
NA
-
NA
T. Phosphorus (mg/L)
-
NA
-
NA
T. Nitrogen (mg/L)
-
NA
-
NA
Chronic Toxicity (P/F)
monitoring only**
NA
-
NA
*TRC values reported below 50 ug/L are considered compliant.
**Chronic toxicity monitoring is a pass/fail test @ 90% with no limit. The tests conducted in March, September and
December failed.

.J
Permit: NCO081426 Owner -Facility: N.L. Mitchell WTP
Inspection Date: 02/20/2015 Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ 0 ❑
application?
Is the facility as described in the permit? 0 El El 0
# Are there any special conditions for the permit? ❑ 0 ❑ ❑
Is access to the plant site restricted to the general public? ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? - ❑ ❑ ❑
Comment: The monthly self monitorinq reports (DMRs) for the Mitchell WTP were reviewed for the
Period January 2014 through December 2014 The facility was found to be compliant with all
effluent limits and monitoring requirements of the NPDES permit
In regards to the quarterly chronic toxicity testing it was noted that the June test passed but
the March. September and December tests failed It is our understanding that a consultant
is evaluating the toxicity issue.
A comparison of the December DMR with the Mitchell WTP laboratory data for temperature
H residual chlorine turbidity and TSS showed that all data was transcribed accurately.
The same was noted for the quarterly parameters analyzed by Meritech labs
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: Wastewater from the Mitchell WTP is generated from filter backwash The treatment
components consist of a transfer basin with three pumps dechorination by calcium
thiosulfate, a settling basin/waste clarifier with four floating decanters and water spray pump
for chlorine dissapation in -line totalizing flow meter and effluent pipe
Solids from the waste clarifier are pumped directly to the North Buffalo POTW with final
disposal occurring at the TZ Osborne POTW by incineration
De -chlorination Yes No NA NE
Type of system ?
Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
❑
❑
E
❑
Is storage appropriate for cylinders?
❑
❑
❑
# Is de -chlorination substance stored away from chlorine containers?
❑
❑
N
❑
Are the tablets the proper size and type?
❑
❑
■
❑
Comment: Calcium thiosulfate is fed at the transfer basin
Are tablet de -chlorinators operational?
❑
❑
0
❑
Number of tubes in use?
Page# 3
I

Permit: NCO081426
Inspection Date: 02/20/2015
De -chlorination
Comment:
Owner - Facility: N.L. Mitchell WTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
0
❑
0
❑
Is the flow meter operational?
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑ •
❑
❑
Comment: An in -line totalizing meter on the decant line is used to report daily flows The meter was
last calibrated by City of Greensboro staff on August 12 2014
The facility reported an average daily discharge of 0 145 MGD for calendar
year 2014
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? E] ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? 0 ❑ . ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑
Comment: The discharge is into N. -Buffalo Creek (class WS-V• NSW) with the outfall located across
Benjamin Parkway.
(Note: the solids forcemain from the Mitchell WTP to the North Buffalo POTW passes
through the center of the discharge/stormwater pipe 1
Page# 4

North Carolina Department of Environment and Natural Resources
Division of.Water Resources
Water Quality Regional Operations Section
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director Secretary
January 15, 2014
Mr. Steven Drew, Director
Water Resources Department
City of Greensboro
P.O. Box 3136 .
Greensboro, NC 27402-3136
SUBJECT: ComplianceEvaluationInspection
N.L. Mitchell WTP Discharge — City of Greensboro
NPDES Permit No. NCO081426
Guilford County
Dear Mr. Drew:
On January 8, 2014, Mike Mickey of this office met with Aki Khan, Larry Nance and Marie Shandor to
perform a Compliance Evaluation Inspection of the NPDES wastewater discharge from the Mitchell Water
Treatment Plant (WTP). The treatment system was found to be compliant with the effluent limits and monitoring
requirements of the NPDES permit. The inspection findings are detailed below and an inspection checklist is
attached for your records.
I. Permit
The NPDES permit was issued August 1, 2011 and expires next on June 30, 2016.
H. Self -Monitoring Program
The monthly self -monitoring reports (DMRs) were reviewed for the period January 2013 through December 2013.
The facility was found to'be compliant with all effluent limits and monitoring requirements of the NPDES permit
(see data summary attached). The review noted that the effluent did not pass the chronic toxicity tests conducted
in March, June, October and December. It is our understanding that efforts are underway to determinethe cause of
the test failures. At present, the toxicity requirement in the permit is monitoring only with no effluent limitation.
III. Flow Measurement
The NPDES permit requires continuous flow recording and annual calibration of the flow measuring device. The
daily effluent flow values reported on the DMRs are measured using an in -line totalizing meter on the decant line.
The meter is calibrated at least annually by City of Greensboro staff.
IV. Sludge Handling and Disposal
Solids that collect in the settling basin/waste clarifier are removed on a daily basis by pumping directly to the
Greensboro North Buffalo POTW with final disposal occurring by incineration at the T.Z. Osborne POTW.
V. Operations and Maintenance
The facility was competently operated and maintained. No problems or concerns were noted.
North Carolina Division of Water Resources, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
Internet: www.ncwaterquality.org
One
NorthCar®lina
An Equal Opportunity 1 Affirmative Action Employer

Mr. Steven Drew
Page 2
January 15, 2014
VI. Facility Site Review
The treatment components for the filter backwash wastewater consist of the following: a transfer basin with three
pumps, dechlorination using calcium thiosulfate (2 pumps), a single settling basin/waste clarifier with four floating
decanters and a water spray pump for chlorine dissipation, in -line totalizing flow meter and effluent discharge line.
VH. Records/Reports
A comparison of the November DMR with the Mitchell WTP laboratory data for TSS, turbidity, temperature,
residual chlorine and pH showed that these parameters were accurately transcribed onto the November. self -
monitoring report.
VIII. Effluent/Receiving Waters
The system discharges into North Buffalo Creek, class "WS-V; NSW" waters in the Cape Fear River Basin.
Our office appreciates your efforts to comply with the NPDES permit. Should you have any questions
concerning this report, please contact Mike Mickey or me at [phone].
Sincerely,
W. Corey Basinger
Regional Supervisor
Water Quality Regional Operations
Division of Water Resources
cc: Barry Parsons (via email: [e-mail])
Ali Khan (via email: [e-mail])
Larry Nance (via email: [e-mail])
Central Files
SM

City of Greensboro —.N. L. Mitchell WTP
NPDES Permit No. NCO081426
Self -Monitoring Data Summary
January 2013 — December 2013
Parameters
Monthly Avg.
Permit Limit
Monthly Avg. Limit
Violations per DMR
Daily Maximum
Permit Limit
Daily Max. Limit
Violations per DMR
Flow (MGD)
-
NA .
-
NA
TSS (mg/L)
30.0
None
45.0
None
PH (S.U.)
-
NA
(6.0-9.0) range
None
R. Chlorine (ug/L)
-
NA
17.0*
None
Turbidity (NTU)
-
NA .
-
NA
Aluminum (ug/L)
-
NA
-
NA
T. Iron (ug/L)
-
NA
-
NA
T. Copper (ug/L)
-
NA
-
NA
Manganese (ug/L) '
-
NA
-
NA
Flouride (ug/L)
-
NA
-
NA
Ammonia N. (mg/L)
-
NA
-
NA
T. Phosphorus (mg/L)
-
NA
-
NA
T. Nitrogen (mg/L)
-
NA
-
NA
Chronic Toxicity (P/F)
monitoring only"
NA
-
NA
*TRC values reported below 50 ug/L are considered compliant.
**Chronic toxicity monitoring is a pass/fail test @ 90% with no limit. Tests conducted in March, June, October
and December failed.

Permit: NCO081426
Owner -Facility: N.L. Mitchell WTP
Inspection Date: 01/08/2014 Inspection Type: Compliance Evaluation
Permit
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment: A review of the monitoring records for the period January 2013 through
December 2013 found the Mitchell WTP to be compliant with the effluent limits and
monitoring requirements of the NPDES permit.
The effluent failed the chronic toxicity test in March, June, October and December. It is
our understanding that efforts are underway to solve the toxicity issue. A new water
spray pump had been installed in the waste clarifier for chlorine dissipation. It should be
noted that the toxicity requirement in the permit is for monitoring only with no effluent
limit.
A comparision of the November DMR with the Mitchell WTP laboratory data for TSS,
turbidity, temperature, residual chlorine and pH showed that these parameters were
accurately transcribed onto the DMR.
The permit expires next on June 30, 2016.
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Yes No NA NE
❑ ❑ ■ ❑
■ ❑ ❑ ❑
❑ ❑ ■ ❑
■ ❑ ❑ ❑
■ ❑ ❑ ❑
V.. Nn Ne NC
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ❑ ❑ ■ ❑
Judge, and other that are applicable?
Comment: Wastewater is generated from filter backwash. Treatment components
consist of a transfer basin with three pumps, dechlorination using liquid calcium
thiosulfate (2 pumps), a single settling basin/waste clarifier with four floating decanters
and water spray pump for chlorine dissipation, in -line totalizing flow meter and effluent
discharge pipe.
Solids from the waste clarifier are pumped daily to the North Buffalo POTW with final
disposal occurring at the T.Z. Osborne POTW by incineration.
The Mitchell WTP lab performs the sample analyses for TSS, pH, residual chlorine and
turbidity. Meritech labs performs the testing for the quarterly parameters in the permit.
De -chlorination
Type of system ?
V.. Nn NA NF
Liquid
Page # 3

i
W
Permit: NCO081426 Owner -Facility: N.L. Mitchell WTP
Inspection Date: 01/08/2014 Inspection Type: Compliance Evaluation
De -chlorination Yes No NA NE
Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ ■ ❑
Is storage appropriate for cylinders? ❑ ❑ ■ ❑
# Is de -chlorination substance stored away from chlorine containers? ❑ ❑ ■ ❑
Comment:
Are the tablets the proper size and type? ❑ ❑ ■ ❑
Are tablet de -chlorinators operational? ❑ ❑ ■ ❑
Number of tubes in use?
Comment: Calcium thiosulfate is fed at the transfer basin using two pumps. .
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting? ■ ❑ ❑ ❑
Is flow meter calibrated annually? ■ ❑ ❑ ❑
Is the flow meter operational? ■ ❑ ❑ ❑
(If units are separated) Does the chart recorder match the flow meter? ❑ ❑ ■ ❑
Comment: An in -line totalizing meter on the decant line is used to report the daily
flows. The meter is calibrated at least annually by City of Greensboro staff.
No discharge to surface waters occurred in August, September and the first parts of
October and November. At this time all flow was routed to the North Buffalo POTW for
treatment.
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ■ ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? ■ ❑ ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ ■ ❑
Comment: The-outfallinto North Buffalo Creek, class "WS-V; NSW" waters, is located
across Benjamin Parkway near where Woodlake Avenue intersects with E. Lake Drive.
The line passing through the discharge/storm drain pipe is the solids force main to the
North Buffalo POTW.
Effluent sampling occurs either at the waste clarifier or the discharge pipe at the creek.
Page # 4

Mickey, Mike
From: Mickey, Mike
Sent: Wednesday, January 07, 2015 2:27 PM
To: Carter, Jenifer
Subject: FW: NCG590000 - WTP
FYI — Conversion at renewal. It is in the permit under Part 1.A(3).
From: Hennessy, John
Sent: Wednesday, January 07, 2015 2:17 PM
To: Weaver, Charles; Grzyb, Julie
Cc: Mickey, Mike
Subject: RE: NCG590000
Due to the existing staffing levels and current permitting volume, it was our intention to process these on their original
renewal schedule. I hope this answers everyone's questions. Please let me know if you have any questions, or require
any additional information. Thanks.
From: Weaver, Charles
Sent: Wednesday, January 07, 2015 2:01 PM
To: Hennessy, John; Grzyb, Julie
Cc: Mickey, Mike
Subject: FW: NCG590000
I know that we won't require a fee to modify existing NC00 permits to NCG59. However, are we allowing changeovers
before a permit is due for renewal?
Let me know, and I'll forward the answer to Mike.
From: Mickey, Mike
Sent: Tuesday, January 06, 2015 4:26 PM
To: Weaver, Charles
Subject: NCG590000
Charles —I assume existing WTP's that meet the criteria will be moved to the new general permit at renewal. If a facility
wants to transfer in mid -permit cycle, can they go ahead and submit Short Form C — WTP without a fee? Will it be
processed? Thanks, Mike.
[e-mail]
NC DENR Winston-Salem Regional Office
Division of Water Resources — Water Quality Programs
450 W. Hanes Mill Road, Suite 300, Winston-Salem, NC 27105
[phone]
Please note new address and telephone number.
E-mail correspondence to and from this address maybe subject to the North
Carolina Public Records Law and may be disclosed to third parties.

..k
Mickey, Mike
From: Shandor, Marie <[e-mail]>
Sent: Friday, November 08, 2013 3:42 PM
To: Mickey, Mike
Cc: Parsons, Barry, Khan, Ali; Adrian -Munro, Amy
Subject: City of Greensboro Mitchell Discharge AT1 report Sept 2013
Attachments: MD AT1 Tox report Sept 2013.pdf
Mike,
here's the signed report for Sept 2013. 1 mailed a hard copy to Env. Science Branch too.
Thank you.
Marie Shandor
Water Supply Lab Supervisor
PO Box 3136, Greensboro, NC 27402-3136
Office(336) 373-7649
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
1

Effluent Toxicity Report Form- Chronic Pass/Fats and Acute LC50 Date
Faciilt} aml2 m— Ni lt` I NpnES#NC Li% Pipe # County.
LabO,Por*g Test f�"leC }� f`nmmanFa
E Signature of Laboratori-.5upervisor I LU .3. ' I
M AI i O n I G I N A L TO Di viraruttentai sciences Branch
C. FC Div. of Water Quality
N.C. DENR
1621 Mail Service Center
North Carolina gr&daphnla ChronicpaselFail Rearoducticn Toxicity Test Raleigh, North Carolina 27699-1621
CONTROL ORGANISMS 1 2 3 4 6 6 7 8 9_ 10 11 12 Chronla lest Resufte
# Young Produced
Adult (L)fve (D )ead IL
Effluent%o CIl
TREATMENT 2 ORGANISMS 1
Young Produced
Adult (L)ive (D )ead
2 3 4 5 6 7
1st sam le 1st sam le 2ndl sam le
Control
pH
Treatment 2
8
a n a n a e
r d r d r
t t t
lstsample lot sample 2nd sample
Control
0.0.
Treatment 2
tO-Officute Toxicity Test
(Mortality expressed as %, combining replicates)
Calculated t
Tabular t
% Reduction
8 9 10 11 12 .oau.,a... .
Control•CV
PASS FAIL
a°arOOf ��w,o � w�""voa
��. DCheEOne
Complete -This For Either Test Test Start Date
Sample 1 / i
Sample Type/Duration
1
2
%%
%
%
%
%%I
%
%
%
%
%
%
LC60= %
95% Confidence Limits
Organism Tested
DWQ form AT-1 (3/87) rev. 11195
Moving Average ❑ Probit ❑.
SpearmamKarber O Other ,
Duration
Hardness(mgll)
Spec.Cond.()rmhos)
CNodne(mgA)
Sample temp. at receipt
Concentration
Mortality
2
Note. Please
Complete This
Section Also
start/end start/and
Control
High
Gong
pH D.O.

Mickey, Mike
From: Giorgino, John
Sent: Wednesday, July 03, 2013 2:37 PM
To: Mickey, Mike
Subject: RE: City of Greensboro quarterly toxicity results from Mitchell water plant
Hey Mike. Since the facility is monitoring only, monthly follow-up testing is not required (as you stated). An NOV will
not be sent to the facility since we do not judge compliance on a monitoring only permit.
-John
John Giorgino
Environmental Biologist
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
Mailing Address:
1621 MSC
Raleigh, NC 27699-1621
Office: 919 743-8441
Fax: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties.
From: Mickey, Mike
Sent: Wednesday, July 03, 2013 1:23 PM
To: Giorgino, John
Subject: FW: City of Greensboro quarterly toxicity results from Mitchell water plant
John — The City of Greensboro's Mitchell WTP (NC0081426) failed their toxicity test for the second consecutive
quarter. Section A.(2). of the permit does not require them to commence monthly monitoring. Anything else I need to
instruct them to do or will your shop send a letter/NOV? See email below from city.
Thanks, Mike.
Mike Mickey
[e-mail]
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]

From: Shandor, Marie [ma iIto: Marie. [e-mail]]
Sent: Wednesday, July 03, 2013 12:04 PM
To: Mickey, Mike
Cc: Parsons, Barry; Khan, Ali; Adrian -Munro, Amy
Subject: City of Greensboro quarterly toxicity results from Mitchell water plant
Hi Mike,
Hope you are well. Help please.
We just found out the our quarterly toxicity samples from Mitchell's discharge failed for mortality. This is the second
consecutive failure. Our current permit has us monitoring toxicity. Not sure what if anything we need to do.
Thanks in advance.
Marie Shandor, Lab Supervisor
Water Supply Division, Department of Water Resources
Phone: [phone]
6268 Bryan Park Rd.,
Browns Summit, NC 27214
www.greensboro-nc.gov
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
z

1'
Mickey, Mike
From: Mickey, Mike
Sent: Wednesday, July 03, 2013 2:41 PM
To: 'Shandor, Marie'
Subject: RE: City of Greensboro quarterly toxicity results from Mitchell water plant
Marie — You do not need to do anything else. Monthly follow-up testing is not required in the Mitchell WTP permit.
Enjoy the holiday. Mike.
Mike Mickey
[e-mail]
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
From: Shandor, Marie [mailto:Marie.ShandorCa)greensboro-nc.gov]
Sent: Wednesday, July 03, 2013 12:04 PM
To: Mickey, Mike
Cc: Parsons, Barry; Khan, Ali; Adrian -Munro, Amy
Subject: City of Greensboro quarterly toxicity results from Mitchell water plant
Hi Mike,
Hope you are well. Help please.
We just found out the our quarterly toxicity samples from Mitchell's discharge failed for mortality. This is the second
consecutive failure. Our current permit has us monitoring toxicity. Not sure what if anything we need to do.
Thanks in advance.
Marie Shandor, Lab Supervisor
Water Supply Division, Department of Water Resources
Phone: [phone]
6268 Bryan Park Rd.,
Browns Summit, NC 27214
www.greensboro-nc.gov
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
1

Mickey, Mike
From: Parsons, Barry [[e-mail]]
Sent: Thursday, June 13, 2013 1:46 PM
To: Mickey, Mike
Subject: Waste Clarifier (backwash basin) at Mitchell
Mike,
A couple days ago our main drain valve to the waste clarifier broke. It's about 20 feet down to the bottom of the vault
in a very tight space. Our operations division is looking for some internal parts for the valve to make it operational
again. So far there has been no luck since the valve is about 40 years old. Worse comes to worse we will have to dig
down outside the vault and cut in a new valve. All of this will take time. For the most part we can decant most of the
water being discharged into the stream. However, there will be times we will have to pump the basin down like we did
before to make room for filter backwashes. The water is relatively clear and he turbidities are low. Our sludge remains
in the clarifier. It will take about two to three weeks to repair the valve and get things back to normal. We are
monitoring closely and foresee no turbidity issues. Thank you.
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
-------------------------------------------------------
-------------------------------------------------------
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
1

I i't3r---0f;G nll� 1?
January 04, 2013
Central Files
Division of Water Quality - DENR
1617 Mail Service Center
Raleigh, NC 27699-1617
To Whom It May Concern:
The following monthly discharge monitoring report, one original and'one copy each for the month
of September 2012 is enclosed in this package:
• Mitchell Water Treatment Plant - NPDES Permit #:NC0081426
Please note that this submittal is sent in efforts to amend the Mitchell Water Treatment Plant
Report sent in October 2012. If you will, please discard the previous report for this plant and
replace with the modified one in this package.
If there are any questions or concerns regarding the contents in this packet, please contact me at
336.433.7370.
Sincerely,
S. Shree Collins, Regulatory Compliance Specialist
Water Resources Department
S SC/
Enc
2602 S. Elm -Eugene Street • Greensboro, NC 27406 • www.greensboro-ne.eov • (336) 373-CITY (2489)

e
EFFLUENT
NPDES Permit No. NCO081426 Discharge No. 001 Month September Year 2012
Facility Name Mitchell Water Treatment Plant Class 0 County Guilford
Operator in Responsible Charge (ORC) Amy Adrian -Munro — Grade PC1 Phone [phone]
Certified Laboratories (1) 629,551 (2) 57
CHECK BOX IF ORC HAS CHANGED ❑ Person(,) Collecting Samples Austin Blackm
Mail ORIGINAL and ONE COPY to:
ATTN: Central Files
Div. of Water Quality
DENR
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
X 4 Gov(.. V 3
(SIGNATURE & OPERAT01UN RESPONSIBLE CHARGE) DATE
BY THIS SIGNATURE, I CERTIFY THAT THIS REPORT IS ACCURATE AND COMPLETE TO
THE BEST OF MY KNOWLEDGE.
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01045
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DWQ Form MR -I rn C
(Revised 70000) ' '`.)

Facility Status - please check one of the following:
All monitoring data and sampling frequencies meet permit requirements Compliant
0
Monitoring data and/or sampling frequencies do NOT meet permit requirements Noncompliant
If the facility is noncompliant, please comment on corrective actions being taken in respect to equipment, operation, maintenance,
etc., providing a time table for completion of improvements.
No discharge for week 9-16-12 through 9- 23-12. No discharge for week 9-24-12 through 9-29-12. Unable to collect quarterly samples due to no discharge.
Collected quarterly samples the first week in October 2012, for the week9-30-12 thru 10-6-12 discharge samples analyzed on Tuesday 10-2-12.
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel property gather and evaluate the information submitted. Based on my inquire of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
City of Greensboro Water Resources
PO Box 3136
_Barry Parsons
XPermiee (Please t t or type)
/Z /i 3
Signature of Permittee** Date
Greensboro, NC 27402 336 373 2055 June 30 2016
Permittee Address
Phone Number Permit Expiration Date
PARAMIR.TF.R CODE-q
00010 Temperature
00076 Turbidity
00080 Color (Pt -Co)
00082 Color (ADMI)
00095 Conductivity
00300 Dissolved Oxygen
00310 BOD
00340 COD _
00400 pH
00530 TSS
00545 Settleable Matter
00556 Oil Grease
00600 Total Nitrogen
00610 Ammonia Nitrogen
00625 Kjeldhal Nitrogen
00630 Nitrates/Nitrites
00665 Total Phosphorus
00720 Cyanide
00745 Total Sulfide
00927 Total Magnesium
00929 Total Sodium
00940 Total Chloride
00951 Total Fluoride
01002 Total Arsenic
01027 Cadmium
00010 Temperature01032 Hexavalent Chromium
01034 Chromium
01067 Nickel
01037 Total Cobalt Hexavalent
01042 Copper
01045 Iron
01105 Aluminum
01051 Lead
01077 Silver
01092 Zinc
01147 Selenium
31616 Fecal Coliform
32730 Total Phenolics
34225 Benzene
34481 Tolulene
38260 MBAS
39516 PCBs
50050 Flow
50060 Residual Chlorine
71880 Formaldehyde
71900 Mercury
81551 Xylene
Parameter Code assistance may be obtained by calling the Division's Point Source Compliance/Enforcement Unit at [phone] or
by visiting the NPDES web site at http://b2o.enr.state.nc.us/NPDBS and visiting the "Documents" section.
The monthly average for fecal coliform is to reported as a GEOMETRIC mean. Use only units designated in the reporting facility's
permit for reporting data.
* ORC must visit facility and document visitation of facility as required per I SA NCAC 8A .0202 (b) (5) (B).
** If signed by other than the permittee, delegation of signatory authority must be on file with the state per 15A NCAC 2B .0506 (b) (2) (D).
DWQ Form MR-1. (Revised 7/2000)

Mickey, Mike
From: Collins, Shameka [[e-mail]]
Sent: Friday, January 04, 2013 2:55 PM
To: Mickey, Mike
Cc: Parsons, Barry; Shandor, Marie
Subject: NPDES Report Amended (SEPT 12')
Attachments: NPDES monthly report letter(Amended).pdf
Importance: High
Good Afternoon,
Please review the attached document sent in efforts to amend the month of September 2012 - NPDES Report for Mitchell
Water Treatment Plant. The original signed copy and a duplicate are in route to the State's Central Files.
If you should have any questions, please contact me.
Sincerely,
S. Shree Collins, MPA
Compliance Specialist, Department of Water Resources
City of Greensboro
Phone:[phone]; Fax:[phone]
2602 S Elm -Eugene Street, Greensboro, NC 27406
Water Resources Department
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
1

Mickey, Mike
From: Mickey, Mike
Sent: Tuesday, December 18, 2012 2:35 PM
To: 'Shandor, Marie'
Subject: Sept DMR - Mitchell WTP - NCO081426
Marie — Comments on the back of the September monitoring report state that there was no discharge for the period
9/16 -10/1. However, effluent flow values were reported for those two weeks. If there was no discharge, the flow
values should be "0". By reporting flow values our computer tracking system is showing a violation for failing to sampl
for TSS, TRC, ph and turbidity. Can an amended DMR be submitted to Central Files? Thanks, Mike.
Mike Mickey
[e-mail]
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North
Carolina Public Records Law and may be disclosed to third parties.

Mickey, Mike
From: Shandor, Marie [[e-mail]]
Sent: Friday, December 21, 2012 10:30 AM
To: Mickey, Mike
Subject: RE: Sept DMR - Mitchell WTP - NC0081426
Mike, we didn't have a discharge to the creek for the two week period from Sun Sept 16t" through Sat. Sept. 22"d, and Sun
Sept 23rd through Sat Sept 29, 2012.
Discharge to the creek started Sunday Oct 30th. We did our weekly discharge for that week on Tuesday Oct 2"d, 2012.
We will send a corrected report to the central office. Thanks, and Merry Christmas.
Marie A. Shandor, Lab Supervisor
Department of Water Resources
City of Greensboro
Phone:[phone] Fax:[phone]
6268 Bryan Park Rd, Browns Summit, NC 27214
marie.shandor(o).greensboro-nc.gov
From: Mickey, Mike [mailto:[e-mail]]
Sent: Thursday, December 20, 2012 1:37 PM
To: Shandor, Marie
Subject: RE: Sept DMR - Mitchell WTP - NC0081426
Thanks Marie. Can someone let me know the outcome of what they find regarding the flow values? Mike.
Mike Mickey
Mike.Mickev(ZDNCDENR.eov
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North
Carolina Public Records Law and may be disclosed to third parties.
From: Shandor, Marie [mailto:[e-mail]]
Sent: Wednesday, December 19, 2012 9:36 AM
To: Mickey, Mike
Subject: RE: Sept DMR - Mitchell WTP - NC0081426
Mike, thanks for the information. We conducted interviews, on Monday and Tuesday, and I'm just now catching up on e-
mails.
I forwarded the e-mail to the ORC. The report is populated from our internal database, so our IT guy is checking it out.
Thanks again and Merry Christmas.
Marie A. Shandor, Lab Supervisor
Department of Water Resources
City of Greensboro

4
Phone:[phone] Fax:[phone]
6268 Bryan Park Rd, Browns Summit, NC 27214
marie.shandor(o)-greensboro-nc.gov
From: Mickey, Mike[mailto:mike.micky(aOncdenr.gov]
Sent: Tuesday, December 18,.2012 2:35 PM
To: Shandor, Marie
Subject: Sept DMR - Mitchell WTP - NCO081426
Marie — Comments on the back of the September monitoring report state that there was no discharge for the period
9/16 -10/1. However, effluent flow values were reported for those two weeks. If there was no discharge, the flow
values should be "0". By reporting flow values our computer tracking system is showing a violation for failing to sample
for TSS, TRC, ph and turbidity. Can an amended DMR be submitted to Central Files? Thanks, Mike.
Mike Mickey
Mike. [e-mail]
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North
Carolina Public Records Law and may be disclosed to third parties.
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
2

NCO081426
Monitoring Violation
III TWTP
Frequency
109-30-2012
;Milligrams
;Violation
20121:
.. .......... .............
9 ......... ......... ... . . .....
001
Aluminum, Total (as Al) ........... ................. . ...
Quarterly
;per Liter
lFrequency
�jWeekly
Micrograms
Violation
2012:
9
001
Chlorine, Total Residual 109-22-2012
;per Liter
Frequency
'Micrograms;
Violation
20121,
9
001
iChlorine, Total Residual 09-29-2012
iWeekly
per Liter
,Frequency
;Milligrams
'Violation
2012�
9
001
!Copper, Total (as Cu) 109-30-2012
!Quarterly
per Liter
Frequency
Micrograms
Violation
20122
9
001
Fluoride, Total (as F) 109-302012
iQuarterly
;per Liter
Frequency
'Milligrams
Violation
2012`
9'
001
Iron, Total (as Fe) 109-30-2012
Quarterly
per Liter
:Frequency
IManganese, Total (as
Micrograms;
;Violation
2012:
9
001
Mn) 109-30-2012
— - - - - ---- - ------------
;Quarterly
—4-
;per Liter
Frequency
INitrogen Ammonia Total
i
Milligrams
`Violation
2012'
9
:001
t
!(as N) -_Concentration ration 09-30-2012
;Quarterly
!per Liter
Frequency
. .............. . ....
... . .... .. ... ....
Nitrogen, Total (as N) -
. . ............ ... .. -
Milligrams
:Violation
2012i
9.
001
tConcentration 09-30-2012
=Quarterly
per Liter
fFrequency
�P/F STATRE 7Day Chr I
Pass=O,
Violation
2012�
9
001
lodaphnia 109-30-2012
iQuarterly
'Fail=1
SfandarcF
Frequency
I
Units, i.e.,
'Violation
9
001
p H 109-22-2012
Weekly
`Ph ..... . . ... .. ................. ......... .
:Standard ..
Frequency
'Units, i.e.,
:Violation
2012?
9
Ool
pH 09-29-2012
;Weekly
Ph
,Frequency
':Phosphorus, Total (as P)
Milligrams
'Violation
2012i
9
concentration '09-30-2012
;Quarterly
perLiter
Wmm001
Frequency
%Solids, Total Suspended
Milligrams
:Violation
2012
9:
001
'Concentration 109-22-2012
Weekly_
per Liter

,
Frequency
Violation umu. y
-------�----�'---r-----�-------------�—'-------------'-----'----'�'—
!
!
001---_-__
�Turbidity
om `_�—_
__— __
Aric | | �
|
jummity | /
^

Mickey, Mike
From: Shandor, Marie [[e-mail]]
Sent: Monday, September 24, 2012 11:20 AM
To: Adrian -Munro, Amy; Khan, Ali
Cc: Parsons, Barry; Mickey, Mike
Subject: City of Greensboro Mitchell Discharge NPDES Permit#NC0081426
Importance: High
Amy and Ali,
I called and got guidance from Mike Mickey, concerning our quarterly WET sampling from the Mitchell Discharge. We will
still submit a report for September 2012 with comments, even though we won't have any results.
We will schedule a WET collection in October asap, when we are actually sending the discharge into the creek. Hopefully,
this is the first week in October.
Thanks.
Marie A. Shandor,La b Supervisor
Department of Water Resources
City of Greensboro
Phone:[phone] Fax:[phone]
6268 Bryan Park Rd, Browns Summit, NC 27214
marie.shandor�7a greensboro-nc.gov
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
1

4Pf _V W/
HC®EH
North Carolina Department of Environment and Natural
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E.
Governor Director
August 9, 2012
Mr. Steven Drew
Water Resources Director
City of Greensboro
P.O. Box 3136
Greensboro, NC 27402-3136
Subject: NOTICE OF DEFICIENCY
NPDES Permit No. NCO081426
N. L. Mitchell Water Treatment Plant
Guilford County
Dear Mr Drew:
Resources
Dee Freeman
Secretary
A review of the May 2012 Discharge Monitoring Report (DMR) revealed a violation of the following
parameter:
Parameter
Date
'Reported Value
Permit Limit
Limit Type
pH
5/14/12
5.2 S.U.
(6.0 — 9.0) range
Daily Minimum
Remedial actions should be taken to correct the cause(s) of this violation. The violations described above
should be abated immediately and properly resolved. '
Thank you for your attention to this matter. This office requires that the violations as described above be
properly resolved. Unresolved violations may lead to the issuance of a Notice of Violation and/or
assessments of civil penalties.
If you have any questions, please contact Mike Mickey at [phone].
Sincerely,
W. Corey Basinger
Winston Salem Regional Supervisor
Surface Water Protection Section
cc: Barry Parsons (City of Greensboro, 6z it, NC 272+*-9T5�
DWQ Central Files `3�"\K4 Z'W%- ,
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet www.newaterquality.org
An Equal Opportunity l Affirmative Action Employer
lOne
ofthCar®lina
Natwallb

Cover Sheet from
Staff Member to
Regional Supervisor
DMR Review Record
Facility. ���� Permit/Pipe No.: U Month/Year NA-�, -bn -
Mohr y Average Violations
Parameter Perimit Limit \ DMR Value % Over Limit
Date Parameter
Date
40&I>iolation
Permit Lirnitrrype
Monitoring
Parameter Perna
Completed by: �
Regional Water Quality
Supervisor SiQnoff: 4%
s
DMR Value % Over Limit
cy Violations
Values Reported # of Violations
Date:��-
Date: Z0 t Z
"o C)

E !I ----E
EFFLUENT ;. {.� Pt-O °NFJUL
r
NPDES Permit No. ATC0084-426 Discharge No. 001 Month Year`=�2
Winston-Salem
Facility Name tchell«Water Treatment Plant Class 0 County Guilford a
Operator in Responsible Charge (ORC) Amy Adrian -Munro Grade PC1 Phone [phone]
Certified Laboratories(1) 629,551 (2) 57
CHECK BOX IF ORC HAS CHANGED ❑ Person(s) Collecting Samples Austin Blackm
Mail ORIGINAL and ONE COPY tb:
ATTN: Central Files j �U N
Div. of Water Quality x
DENR ,. ,_-�.
SIFrNA OF !J10R IN RESPONSIBLE CHARGE DATE
a.s1617 MAIL SERVICE CENTER �,)
'•J��11tA
RALEIGH, NC 27699-1617 h IS SIGNATURE, I CERTIFY THAT THIS REPORT IS ACCURATE AND COMPLETE TO
THE BEST OF MY KNOWLEDGE.
50050
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-
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-
-
-
li W y corm MK-1
(Revised 7/2000)

Facility Status - please check one of the following: 11
All monitoring data and sampling frequencies meet permit requirements Compliant
Monitoring data and/or sampling frequencies do NOT meet permit requirements Noncompliant
If the facility is noncompliant, please comment on corrective actions being taken in respect to equipment, operation, maintenance,
etc., providing a time table for completion of improvements.
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquire of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
City of Greensboro Water Resources
PO Box 3136
Barry Parsons
Permi ee (PIease t or type)
t V
Signature of Permittee** Date
Greensboro, NC 27402 336 373 2055 June 30 2016
Permittee Address
Phone Number Permit Expiration Date
'D A D A A/F 9P D rd-vn v c
00010 Temperature
00076 Turbidity
00080 Color (Pt -Co) v v
00082 Color (ADNM
00095 Conductivity
00300 Dissolved Oxygen
00310 BOD
00340 COD
00400 pH
00530 TSS
00545 Settleable Matter
00556 Oil Grease
00600 Total Nitrogen
00610 Ammonia Nitrogen
00625 Kjeldhal Nitrogen
00630 Nitrates/Nitrites
00665 Total Phosphorus
00720 Cyanide
00745 Total Sulfide
00927 Total Magnesium
00929 Total Sodium
00940 Total Chloride
00951 Total Fluoride
01002 Total Arsenic
01027 Cadmium
00010 Temperature01032 Hexavalent Chromium
01034 Chromium
01037 Total Cobalt Hexavalent
01042 Copper
01045 Iron
01051 Lead
01067 Nickel
01077 Silver
01092 Zinc
01105 Aluminum
01147 Selenium
31616 Fecal Coliform
32730 Total Phenolics
34225 Benzene
34481 Tolulene
38260 MBAS
39516 PCBs
50050 Flow
50060 Residual Chlorine
71880 Formaldehyde
71900 Mercury
81551 Xylene
rarameter code assistance may be obtained by calling the Division's Point Source Compliance/Enforcement Unit at [phone] or
by visiting the NPDES web site at http://h2o.enr.state.ne.us/NPDES and visiting the "Documents" section.
The monthly average for fecal coliform is to reported as a GEOMETRIC mean. Use only units designated in the reporting facility's
permit for reporting data.
* ORC must visit facility and document visitation of facility as required per 15A NCAC 8A .0202 (b) (5) (B).
** If signed by other than the permittee, delegation of signatory authority must be on file with the state per 15A NCAC 2B .0506 (b) (2) (D).
DWQ Form MR-1 (Revised 7/2000)

awx
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E.
Governor Director
July 6, 2012
Mr. Steven Drew
Water Resources Director
City of Greensboro
P.O. Box 3136 .
Greensboro, NC 27402-3136
Subject: NOTICE OF DEFICIENCY
NPDES Permit No. NCO081426
N. L. Mitchell Water Treatment Plant
Guilford County
Dear Mr Drew:
Dee Freeman
Secretary
A review of the April 2012 Discharge Monitoring Report (DMR) revealed a violation of the following
parameters:
Parameter
Date
Reported Value
Permit Limit
Limit Type
T. Residual Chlorine
4/2/12
86 ug/L
17.0 ug/L
Daily Maximum
pH
4/2/12
5.5 S.U.
(6.0 — 9.0) range
Daily Minimum
Remedial actions should be taken to correct the cause(s) of this violation. The violations described above
should be abated immediately and properly resolved.
Thank you for your attention to this matter. This office requires that the violations as described above be
properly resolved. Unresolved violations may lead to the issuance of a Notice of Violation and/or
assessments of civil penalties.
If you have any questions, please contact Mike Mickey at [phone].
Sincerely,
W. Corey Basinger
Winston Salem Regional Supervisor
Surface Water Protection Section
cc: DWQ Central Files
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
Internet www.newaterquality.org
Ndith Carolina
An Equal Opportunity 1 Affirmative Action Employer

Facility:
Parameter
Date Parameter
Date Parameter
Other Violations
Cover Sheet from
Staff Member to
Regional Supervisor
DMR Review Record p
Pemiit/Pipe No.: Month/Year
Average Violations
DMR Value % Over Limit
WeIqy aiI Violation
Permit Lin- tV 'vp e
Moni
s
DMR Value % Over Limit
% 15 - $ •3 °lo
12 b -Osolo
Frequency Violations
Values Reported # of Violations
Completed by: `' Date:
Regional Water Quality
Supervisor Sianoff: Date:
,
i `i

RECEIVED
NC. Dept of ENR
EFI �t i JUN 5'
Winston-Salem
NPDES Permit No. NG00844261' Discharge No. 001 Month CA�nIZ3 Year &9,11lWionai oTTce
Facility Name MitehelLWater-TreatmentPlant Class 0 County Guilford
Operator in Responsible Charge (ORC) Amy Adrian -Munro Grade PC1 6 Phone [phone]
Certified Laboratories (1) 629,551 (2) 57
CHECK BOX IF ORC HAS CHANGED Person(s) Collecting Samples Austin Blackm Marie Shandor
Mail ORIGINAL and ONE COPY to:
ATTN: Central Files ¢'y
Div. of Water Quality
DENR
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
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CURE OF OPEZOOR IN RESPONSIBLE CHARGE) DATE
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T OF MY KNOWLEDGE.
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(Revised 7/2000) J

Facility Status - please check one of the following: 1-1
All monitoring data and sampling frequencies meet permit requirements Compliant
[�T
Monitoring data and/or sampling frequencies do NOT meet permit requirements Noncompliant
If the facility noncompliant, please comment on corrective actions being taken in respect to equipment, operation, maintenance,
et ., providing a time talile fo'r"completion ofimprovements, v� �-._:;:.
Mitchell Discharge 4-2-12 Total Chlorine @ 86 ug/L Corrective action- Thiosulfate feed rate was increased to maintain chlorine
compliance. pH @ 5.5su out of compliance with permitted parameters. Corrective acton- started lime slurry feed to the filter
back wash water to maintain pH compliance.
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquire of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
City of Greensboro Water Resources
PO Box 3136
Barry Parsons
Pe ittee (Please p . or type) ,
Signatur of Permittee** Date
Greensboro, NC 27402 336 373 2055 June 30 2016
Permittee Address
Phone Number Permit Expiration Date
PAi2Al%4lRT-VlD d-n'nTc
00010 Temperature
00076 Turbidity
00080 Color (Pt -Co) v v
00082 Color (ADMl)
00095 Conductivity
00300 Dissolved Oxygen
00310 BOD
00340 COD
00400 pH
00530 TSS
00545 Settleable Matter
00556 Oil Grease
00600 Total Nitrogen
00610 Ammonia Nitrogen
00625 Kjeldhal Nitrogen
00630 Nitrates/Nitrites
00665 Total Phosphorus
00720 Cyanide
00745 Total Sulfide
00927 Total Magnesium
00929 Total Sodium
00940 Total Chloride
00951 Total Fluoride
01002 Total Arsenic
01027 Cadmium
00010 Temperature01032 Hexavalent Chromium
01034 Chromium
01037 Total Cobalt Hexavalent
01042 Copper
01045 Iron
01051 Lead
01067 Nickel
01077 Silver
01092 Zinc
01105 Aluminum
01147 Selenium
31616 Fecal Coliform
32730 Total Phenolics
34225 Benzene
34481 Tolulene
38260 MBAS
39516 PCBs
50050 Flow
50060 Residual Chlorine
71880 Formaldehyde
71900 Mercury
81551 Xylene
Parameter Code assistance may be obtained by calling the Division's Point Source Compliance/Enforcement Unit at [phone] or
by visiting the NPDES web site at http://h2o.enr.state.ne.us/NPDES and visiting the "Documents" section.
The monthly average for fecal coliform is to reported as a GEOMETRIC mean. Use only units designated in the reporting facility's
permit for reporting data.
* ORC must visit facility and document visitation of facility as required per 15A NCAC 8A .0202 (b) (5) (B).
** If signed by other than the permittee, delegation of signatory authority must be on file with the state per 15A NCAC 213 .0506 (b) (2) (D).
DWQ Form MR-1 (Revised 7/2000)

NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, PE Dee Freeman
Governor Director Secretary
February 9, 2012
Mr. Steven Drew
Water Resources Director
City of Greensboro
P.O. Box 3136
Greensboro, NC 27402-3136
SUBJECT: Compliance Evaluation Inspection
N. L. Mitchell Water Treatment Plant — City of Greensboro
NPDES Permit No. NCO081426
Guilford County
Dear Mr. Drew:
On February 7, 2012, Mike Mickey of this office met with Barry Parsons and the staff of the
Mitchell Water Treatment Plant (WTP) to perform a Compliance Evaluation Inspection on the NPDES
wastewater discharge. This type of inspection consists of two basic parts: an in office file review and an
on -site inspection of the treatment facility. The Mitchell WTP was found to be in compliance with the
NPDES permit. The attached EPA inspection form notes the eight (8) areas that were evaluated. The
findings and observations are outlined below:
I. Permit
The NPDES permit was recently reissued with an effective date of August 1, 2011.
11. Self -Monitoring Program
The monthly self-moriitoring reports (DMR's) were reviewed for the period January 2011 through
December 2011. The facility was found to be consistently in compliance with final NPDES effluent limits
for the above period (See data summary attached). The only violation noted involved a single pH value
that was below the permit minimum of 6.0 S.U. In regards to the permit monitoring requirements, it was
noted that all sampling was performed per the frequencies specified in the permit.
111. Flow Measurement r
The NPDES permit requires continuous flow recording. The daily effluent flow values reported on the
DMR are measured by an in -line totalizing meter. The meter is calibrated by City of Greensboro staff.
IV. Sludge Handling and Disposal
Solids collected in the settling basin/waste clarifier are drawn off the bottom of the basin on a daily basis
and are pumped directly to Greensboro's North Buffalo POTW with final disposal by incineration.
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107 One
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748 NorthCarolina
Internet: www.ncwaterquality.org (/ ys " atuyia //y
An Equal Opportunity 1 Affirmative Action Employer

Mr. Steven Drew
Page 2
February 9, 2012
V. Operations and Maintenance
The facility appeared to be competently operated and maintained. No problems or concerns were noted.
VI. Facility Site Review
The existing treatment components for the filter backwash wastewater consist of the following: liquid
dechlorination and lime addition at the transfer pump station; a single settling basin/waste clarifier with
four floating decanters; an in -line totalizing flow meter; and effluent discharge line.
VII. Records/Reports
A review of the facility files indicates that all records are being maintained according to the permit. A
comparison of the December 2011 self -monitoring report with the corresponding laboratory data sheets
showed that all values were transcribed onto the DMR correctly.
VIII. EffluentlReceiving Waters
The system discharges into North Buffalo Creek, class "C-NSW' waters in the Cape Fear River Basin.
Our office appreciates the conscientious effort of the City of Greensboro staff to comply with the
NPDES permit. Should you have any questions concerning this report, please contact Mike Mickey or
me at [phone].
Sincerely, s
W. Corey Basinger
Regional Water Quality Supervisor
Surface Water Protection Section
cc: Barry Parsons (City of Greensboro, 6268 Bryan Park Rd., Brown Summit, NC 27214-9755)
Central Files
' S-H-

City of Greensboro — N. L. Mitchell WTP
NPDES Permit No. NCO081256
Self -Monitoring Data Summary
January 2011 — December 2011
Parameters
Monthly Avg.
Permit Limit
Monthly Avg. Limit
Violations per DMR
Daily Maximum
Permit Limit '
Daily Max. Limit
Violations per DMR
Flow (MGD)
-
NA
-
NA
TSS (mg/L)
30.0
None
45.0
None
pH (S.U.)
-
NA
(6.0-9.0) range
5.9 pH on 9/26
R. Chlorine (ug/L)
-
NA
17.0*
None
Turbidity (NTU)
-
NA
-
NA
Aluminum (ug/L)
-
NA
-
NA
T. Iron (ug/L)
-
NA
-
NA
T. Copper (ug/L)
-
NA
-
NA
Manganese (ug/L)
-
NA
-
NA
Flouride (ug/L)
-
NA
-
NA
Ammonia N. (mg/L)
-
NA
-
NA
T. Phosphorus (mg/L)
-
NA
-
NA
T. Nitrogen (mg/L)
-
NA
-
NA
Chronic Toxicity (P/F)
-
NA
-
NA
*TRC values reported below 50 ug/L are considered compliant.

United States Environmental Protection Agency
Form Approved.
E P ^/� Washington, D.C. 20460
OMB No. 2040-0057
Water Complannine Insppctunn
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 INI 2 15 I 31 NCO081426 111 121 12/02/07 117 181 C I 19I S I 201 I
I-
Remarks
21111111111111111111111111111111111111111111111116
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---- —-------- —------ ---Reserved---------------
67 I 169 70131 71 IJ 72 I N I 73 LU 74 751 I I I I I I 180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
N.L. Mitchell WTP
09:00 AM 12/02/07
11/08/01
Exit Time/Date
Permit Expiration Date
1041 Battleground Ave
Greensboro NC 274088322
10:00 AM 12/02/07
16/06/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
///
Amy J Adrian-Munro/ORC/336-373-7909/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Barry K. Parsons,PO Box 3136 Greensboro NC 274023136//336-373-7643/ Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit N Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program i Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Michael M Mickey WSRO WQ//336-771-5000/
Sign to of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
� , �'!ll✓ �% ��� � —fib �� �. � ' �!Z
W
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

0
Permit: NCO081426 Owner -Facility: N.L. Mitchell WTP
Inspection Date: 02/07/2012 Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application? n Cl ■ n
Is the facility as described in the permit? ■ n n n
# Are there any special conditions for the permit? n ■ n n
Is access to the plant site restricted to the general public? ■ n n n
Is the inspector granted access to all areas for inspection? ■ n n n
Comment: The NPDES permit for the Mitchell WTP was reissued effective August 1,
2011. Changes in the new permit include the addition of monitoring for pH, copper,
manganese, flouride, ammonia nitrogen, total nitrogen, total phosphorus and chronic
toxicity; the deletion of effluent settleable solids monitoring and deletion of upstream
and downstream turbidity monitoring.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ n n n
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge n n ■ n
Judge, and other that are applicable?
Comment: Wastewater from the WTP process is generated from backwashing of the
filters. The filter backwash is routed to a transfer station where calcium thiosulfate
(dechlorination) and lime (pH adjustment) are added before pumping to the settling
basin/waste clarifier. Four floating decanters in the settling basin are used to draw off
supernatant that is discharged to N. Buffalo Creek. Solids that accumulate in the basin
are pumped directly to the City of Greensboro's N. Buffalo PCITW for treatment on a
daily basis.
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
■ ❑ n ❑
Is all required information readily available, complete and current?
■ n n n
Are all records maintained for 3 years (lab. reg. required 5 years)?
■ n n n
Are analytical results consistent with data reported on DMRs?
■ n n n
Is the chain -of -custody complete?
■ n In n
Dates, times and location of sampling
■
Name of individual performing the sampling
Results of analysis and calibration
■
Dates of analysis
■
Name of person performing analyses
Transported COCs
■
Page # 3

Permit: NCO081426 Owner -Facility: N.L. Mitchell WTP
Inspection Date: 02/07/2012 Inspection Type: Compliance Evaluation
Record Keeping
Yes
No
NA NE
Are DMRs complete: do they include all permit parameters?
■
n
n n
Has the facility submitted its annual compliance report to users and DWQ?
n
n
■ o
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
n
n
® n
Is the ORC visitation log available and current?
■
n
n n
Is the ORC certified at grade equal to or higher than the facility classification?
■
n
n n
Is the backup operator certified at one grade less or greater than the facility classification?
■
n
n n
Is a copy of the current NPDES permit available on site?
■
n
n Cl
Facility has copy of previous year's Annual Report on file for review?
❑
n
■
Comment: All records are'being maintained per the NPDES permit. A comparison of
the December self -monitoring report with the corresponding laboratory data sheets from
Meritech and Greensboro showed that all values were transcribed correctly onto the
DMR.
Flow Measurement - Effluent
Yes
No
NA NE
# Is flow meter used for reporting?
■
n
n n
Is flow meter calibrated annually?
®
n
n n
Is the flow meter operational?
■
n
n n
(If units are separated) Does the chart recorder match the flow meter?
n
n
■ n
Comment: The NPDES permit requires continuous flow recording. A totalizing in -line
flow meter is used for reporting the daily flow values. The meter is calibrated by City of
Greensboro staff.
De -chlorination
Yes
No
NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ■ n n
Is storage appropriate for cylinders? Cl ❑ ■ n
# Is de -chlorination substance stored away from chlorine containers? n n ■ n
Are the tablets the proper size and type? n n ■ n
Comment: Calcium thiosulfate is fed by a small pump at the transfer station.
Are tablet de -chlorinators operational? n n ■ n
Number of tubes in use?
Comment:
n:__ Vew Nn NA NE
Page # 4

Permit: NCO081426 Owner -Facility: N.L. Mitchell WTP
Inspection Date: 02/0712012 Inspection Type: Compliance Evaluation
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment: No discharge from the settling basin/waste clarifier was occuring at the
time of the inspection. The outfall at N. Buffalo Creek is located across Benjamin
Parkway near where Woodlake Avenue intersects with E. Lake Drive. The line passing
through the outfall pipe is the solids force main to N. Buffalo POTW.
Yes No NA NE
■ ❑ ❑ ❑
■000
nn■o
Page # 5

-0- Seminole
Sample
Point
Cw-P-A-
. Lake Dun
94 Million Gallon
Storage
L...iko lratzriSPUMping I
7
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To
—AM 31"
Aiunl 17(um4idg I C414
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Point
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CloarvmIll
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.
Chemical Feed Points
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<Ix
Aluminum Sulfate (Alum)
,j
Sodium Hypochlorito (Chlorine)
Sodium Hydroxide (Caustic)
<>
Hydrotluoro-sllcic Acid (Fluoride)
Corrosicri, Inhibitor (Phosphate)
Lime Slurry (Inn;)
Ammonia (Future)
Pollyaluminuin Chloride (PAX 18)
Q>
Calcium Thiosulfate

e
City
L & North
®f Greensboro
Carolina
07/13/2010
Mr. Steve Tedder, Regional Supervisor
Surface Water Protection Section
585 Waughtown Street
Winston-Salem, NC 27107
Dear Mr. Tedder:
RECEIVE[)
N.C. Deot, of `NR l�
JUL 1.9 2010 Water Resources
Winston-Salem
Regional Offlee
This document refers to a revision to the City of Greensboro Public Notification of Reidsville
Haloacetic Acids Public Notice. In the previous submission, the figure for HAAs for
Reidsville coverage area was incorrectly typed. The correct concentration limit is 0.0786
mg/L.
The methods used for reporting the correction of the Reidsville occurrence to Greensboro's
citizens are as follows:
1. Notice to the Public sent to all City of Greensboro water customers
2. City of Greensboro Government Station Coverage (Channel 13)
We understand the significance of the issue and took control of the situation as quickly as
possible. Please review the attached documents and if you should have any questions, please
contact me at [phone].
Sincerely,
Shameka S. Collins
Compliance Specialist, Water Resources
SSC/
Enclosure
cc: Steve Drew, Water Supply Manager
COGWR File
PO Box 1170 • Greensboro, NC 27402-1170 • 336-CITY (2489) e TTY # 336-373-6930
5035

The City of Reidsville, a supplier of 3 to 16% of our finished water recently exceeded the drinking water
maximum contaminant level (MCL) for Haloacetic Acids (HAAs). None of the finished water sampling sites
of the water delivered to Greensboro was affected. The City of Greensboro finished water results for HAAs
were compliant throughout the year 2009 to the current date. Although this is not an emergency, as our
customers, you have a right to know what happened, what you should do, and what is being done to correct the
situation.
We routinely monitor for the presence of drinking water contaminants. Testing is conducted on a quarterly
basis and compliance is based on the annual running average. The MCL for HAAs is 0.0600 milligrams per
liter (mg/L). For the period ending March 2010 and June 2010, the annual running average level of HAAs for
the Reidsville coverage area were marginally over this limit at a concentration of 0.0786 mg/L, 0.0795 mg/L,
respectively.
What should I do?
You do not need to use an alternative (e.g., bottled) water supply. However, if you have specific health
concerns, consult your doctor.
What does this mean?
This is not an immediate risk. If it had been, you would have been notified immediately. However, some
people who drink the water containing haloacetic acids in excess of the MCL over many years may have an
increased risk of getting cancer.
What happened? What is being done? When will the problem be corrected?
The City of Reidsville exceedance resulted from elevated levels in the third and fourth quarter of 2009, and the
second quarter of 2010. The formation of the HAAs are affected by the organic matter in Lake Reidsville, the
amount of chlorine in the water, and the contact time of the chlorine with the organic matter. Reidsville has
begun evaluating the use of an additional pre-treatment chemical to aid with the removal of the organic matter
from the raw water supply
Please share this information with all the other persons who drink this water, especially those who may
not have received this notice directly (for example; individuals in apartments, nursing homes, schools,
businesses, etc). You can do this by posting this notice in a public place or distributing copies by hand or
mail.
This notice is printed and distributed to assure compliance with the Safe Drinking Water Act.
For more information, please contact:
City of Greensboro Responsible Person:
System Name:
System Address:
Steve Drew or Barry Parsons
Water Supply Division
PO Box 3136
Phone Number:
System PWSID#
System Address (City, State, Zip)
[phone]
02-41-010
Greensboro, NC 27402
City of Reidsville Responsible Person:
System Name:
System Address (Street):
Gary Moore or Kevin Eason
City of Reidsville Water Plant
278 Reid Lake Road
Phone Number:
System PWSID#
System Address (City, State, Zip)
[phone] or [phone]
02-79-020
230 West Morehead Street
Reidsville, NC 27320

'Facility Name: YYl � ks �, e " tlke `Ctto T Permit #: Oo
SUBMIT A SEPARATE FORM FOR EACH TYPE OF SYSTEM!
Facility Type & Grade:
Type Grade
Biological WWTP Surface Irrigation
Physical/Chemical 4. Land Application
Collection System
Operator in Responsible Charge (ORC)
Print Full Name:
County: G.1--11-t"d
Type Grade
N/A
N/A
Certificate Type / ad I.Number: �� � � 99`f �J�t� Work Phone #: (3?4 ) -5 13 —1�C7g
Signature: ;Gate: D/Cl
"I certify that I tee to my designation as the Operator in Responsible Charge for the facility noted. I understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 1 SA NCAC 080 .0204 and failing to do so can result in
Disciplinary Actions by the Water'Pollution Control System Operators Certification Commission."
..................................................................................................................................
Back -Up Operator in Responsible Charge (BU ORC)
Print Full Na=:
V
Certificate Type /Grade /Number: s Work Phone #: f 3 7 3 7& 4-
Signature: 'rate: .J 1 �
"I certify that I agrcc my designation as a Backup Operator in Responsible Charge for the facility noted. I understand and will abide by
the roles and regulations pertaining to the responsibilities of the DU ORC as set forth in 15A NCAC 080.0205 and failing to do so can
result in Disciplinary Actions by the Water Pollution Control System Operators Certification Commission,"
............................................................................................................................... .
Mail or Fax to: WPCSOCC
1618 Mail Service Center
Raleigh, NC 27699-1618
Fax: [phone]
(Sec next page for designation of additional back-)ap operators. Designation of more than one backup operator is optional,)
Revised 8-2007

�w f�;018 FROM T-223 F0031003 F-541
08;
:
,e3� North Carolina Water Treatment Facility Operators Certification Board
1635 Mail Service Center
LL r' Raleigh, North Carolina 27699-1635
A [phone]
FAX: [phone]
System Name:
ORC DESIGNATION FORM
System, is classified as: (Check all that apply)
PWS ID: County. -Gut IFor& I Purchase
Owner Name: %t�t Drew
Address: Iq-15(Aegj(Wo& Ae
- C)
Tele:(3��-3�3��893 FAx: 336 3�3�5534
Owner )E-Mail: S+egP-A
Surface
Well
Distribution
❑ NO Treatment
AN j3. 0.
0
0�_®
# of Poiiats • • • � ��.�# of Co�nectious:�• •• � �� �` ' � •
Cross •Collinection` ❑'; Yes ::.. ❑' '':,:::Ivo , • :`.
❑ . Distribution ORC ''is .'ekern t IF ::system ..has a .
treatment ORC'an4sery ' 100 or fewer.conneciions.'.
® Water is Treated ❑ Water is Puirebased/Retreated Distribution ORC Required if no Treatment ORC
A treatment ORC is required, on Staff
Treatment ORC I Distribution ORC j
Certification N Certification f;
Operator's Certification Level: Operator's Certification Level: /)Q;r7
A ® B ❑ C ❑ D ❑ ❑ Well ❑ Surface A X B ❑ C ❑ D ❑ Distribution
Name: lI Nr\On
Address: 62b8-'�B0,1Cf1 1?6-f K, K)acl
FN QUTf mmi-� i N G 2 zf
Name: % ham.4s
Address: a260 cnc
�yccns 6o.d /� C' � i yob- 3/36
Tele: Work L3g�.) 3 6- AS1-- Horne 30 2-19 -1 9 V Tele: Work (536) 373- 7 S�r1 Home (33 e) L Yq- 6 8a-s
Designated ORC Sk:nature K- � Designated ORC Signature4
Previous ORC: r•lam, �fSo/,)S _ Previous ORC: Chfw\U add,
❑; Cross , 6unection Control ORC.is.needed.if the'di'.-. utipn system has a riled foi ire or, ipao rt:testab�e
: backflow reveritiori assemblies as re aired b 15A NCAC 1 SC .04p6
Cross Connection ORC
Certification # W569
Name: Q4-Wk Z+ W 4-AIQCAg� Diu
Address: ?, S , C--6n— r '
.� . s + . `L•�. �r
ITYRTIM
Previous ORC:
Written permission must be obtained from the Board to use the same
operator as ORC for more than one type of system. The ORC mast hold
the proper level of certifications. If you wish an operator to be designated
for more than one type of system, please attach a letter to this form and it
vvill be submitted for the Board's review at our next quarterly Board
meeting. Board meetings arc held March, June, September and
December. /1 11
X certify this
Signature
Title: WIfT-C
Date: �h
0 Q
*** Signatures are REOUIRED by owner and UKU(s). ---
and complete.

Mickey, Mike
From: Parsons, Barry [Barry. [e-mail]]
Sent: Wednesday, January 18, 2012 8:28 AM
To: Mickey, Mike
Subject: RE: Mitchell WTP
Mike,
After investigating up and downstream from our discharge we determined the turbidity was caused by rain and mud
from a construction site upstream. There is no way the turbidity could flow upstream from our point of discharge. They
have been doing some grading and landscaping atthe High School up the street for the past couple months. Our
Mitchell ORC said the contractors were washing down the road Sunday. When our water is released to the stream it
goes through decanters and is clear. Rarely do we discharge high turbidities. When we do have hiccups we will notify
the state immediately. Hope this helps! Thanks!
Barry K. Parsons
Water Supply Division Manager
Department of Water Resources
PO Box 3136, Greensboro, NC 27402-3136
Office: [phone]
,",a PPS W'z\ VoN>
From: Mickey, Mike [mailto:[e-mail]] V
&
Sent: Tuesday, January 17, 2012 11:40 AM �r
To: Parsons, Barry r -
Subject: Mitchell WTP �"'�v �° S 1Mzx\��tV (JA) � uA)' 6W :
Hi Barry —The attachedpictures were emailed to our office yesterday concerning the Mitchell WTP. I assume they
were taken 1/16. I am not familiar with the Mitchell WTP. Is the turbid water pictured associated with the NPDES
discharge outfall? Also, was anything going on out of the ordinary yesterday that would have contributed to the turbid
water? Thanks, Mike.
-----Original Message -----
Sent: Monday, January 16, 2012 4:14 PM
To: Basinger, Corey
Subject: Buffalo Creek in Greensboro
Hi Corey,
This is a sight across from a water treatment plant in Greensboro.
It looks like this often.
Can you tell me what this is and what can be done about it?
Mike Mickey
[e-mail]
NC Division of Water Quality
585 Waughtown Street
1

Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North
Carolina Public Records Law and may be disclosed to third parties.
-------------------------------------------------------
-------------------------------------------------------
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.
2

Mickey, Mike
From: Basinger, Corey
Sent: Tuesday, January.17, 2012 11:12 AM
To: Mickey, Mike
Subject: FW: Buffalo Creek in Greensboro
Attachments: photo.JPG; ATT00001.c
Please check this one out. (Email #1 of 2) Here is her most recent response to my request for
additional details.
"The sludge looking picture was taken across the street from Mitchell Water Treatment plant.
Its right at a discharge pipe. The other picture was taken at the footbridge that's in Lake
Daniel Park.
Thank you for your reply,
Georgia Frierson"
W. Corey.Basinger
Regional Supervisor
Surface Water Protection Section
Winston-Salem Regional Office
Division of Water Quality
Email: corey.basinger(@ncdenr.eov
Phone: [phone]
Fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties.
-----Original Message -----
From: Georgia Frierson [mailto:gkf [e-mail]]
Sent: Monday, January 16, 2012 4:14 PM
To: Basinger, Corey
Subject: Buffalo Creek in Greensboro
Hi Corey,
This is a sight across from a water treatment plant in Greensboro.
It looks like this often.
Can you tell me what this is and what can be done about it?
1

Mickey, Mike
From: Georgia Frierson [[e-mail]]
Sent: . Tuesday, January-17, 2012 11:57 AM .
To: Mickey, Mike
Subject: Re: Another spot on Buffalo Creek in greensboro
If you need to talk to me directly my phone number is OL3 1. ,
Sent from my iPhone
On Tan 17, 2012, at 11:42 AM, "Mickey, Mike"<mike.mickey(@ncdenr.g0v>.wrote:
> Georgia - Were the pictures you sent taken yesterday?. Thanks, Mike.
>
>-----=---------=---- ---=-------=----------------=------=------------
> Mike Mickey
> Mike.Mickey(@NCDENR.aov
> NC Division of.Water Quality
> 585 Waughtown Street
> Winston-Salem, NC'.27107
> Phone: [phone]
> FAX: [phone]
>-E-mail correspondence to.and.from this address may be subject to the
> North Carolina Public Records Law and may be disclosed.to third parties.
>
>
> Original Message-----
> From: Basinger', Corey
> Sent: Tuesday, January 17, 20.12 11:12 AM
> To: Mickey, -Mike
> Subject: FW:. Another spot on Buffalo'Creek in greensboro
> Email #2 of 2
>
> W. Corey Basinger,
> Regional Supervisor.
> Surface Water Protection Section
> Winston-Salem. Regional Office
> Division of Water Quality..
>
> Email: corey.basinger(@ncdenr.gov
> Phone: [phone]
> Fax [phone]
>
>,---:--Original Message -----
>.From: Georgia Frierson [mailto:[e-mail]]
>.Sent:.Monday, January 16, 2012 4.:14 PM
> To:.Basinger, Corey
> Subject: Another spot'on Buffalo Creek in greensboro
>
>
>
1

Awk
tjp +r

Mickey, Mike
From: Mickey, Mike
Sent: Thursday, January 12, 2012 8:37 AM
To: 'Shandor, Marie'
Subject: RE: City of Greensboro's discharge results
Thanks Marie. Please note that I incorrectly mentioned that a toxicity test failure for two consecutive quarters would
result in the monitoring increasing to monthly. That is not correct. Mitchell's permit is chronic toxicity monitoring only
with no limit. So, if test failures do occur, you simply adhere to the quarterly monitoring schedule. If a test is missed or
if there are problems with the control organisms, then sampling the next month is required. Hope that helps. Mike.
Mike Mickey
Mike. [e-mail]
NC Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Phone: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North
Carolina Public Records Law and may be disclosed to third parties.
From: Shandor, Marie [ma iIto: Marie. [e-mail]]
Sent: Wednesday, January 11, 2012 5:02 PM
To: Mickey, Mike
Cc: Parsons, Barry; Sledge, Bob
Subject: City of Greensboro's discharge results
Mike, thanks for the help earlier today with our discharge results.
As I mentioned, our total chlorine residual from the Townsend plant NPDES NC0081671, sampled on Tuesday Jan 3,
2012 exceeded the 50ppb limit. We suspect that there might have been a problem with the calcium thiosulfate tote and
tubing.
Also, our Mitchell discharge, NPDES NC0081426, sampled on Dec 13-15, 2011 failed for the quarterly toxicity test. Our
next quarterly toxicity testing is scheduled for March 2012.
If you have any questions, please call or e-mail me.
Thanks again.
Marie Shandor
Lab Supervisor
City of Greensboro
Phone:[phone]
[e-mail]
-------------------------------------------------------
-------------------------------------------------------
Please note that email sent to and from this address is subject
to the North Carolina Public Records Law and may be disclosed to third
parties.

y
i
Cover Sheet from
Staff Member to
Regional Supervisor
DNIR Review Record
Facility: �` `�``��\ W \� Permit/Pipe No.: Month/Year
Mont Average Violations
Parameter Permit Limit DMR Value % Over Limit
We&Jy/Daily Violations
Date Parameter Pen -nit Lin- trFv e DMR Value % Over Limit
Moniton g Frequency Violations
Date Parameter Pem�i re uencv Values Reported # of Violations
Other Violations
Completed by:
Regional Water Quality
Supervisor Signoff.
Date:
' V4/� Date: L ?,"p GI

EFFLUENT
7
NPDES Permit No. &CO©- 81P42�6 Discharge No. _ 001 Month Sep" ember
ear 2�4yI
Facility Name Mi}tell Water Treatment Plant Class 0 County Guilford
Operator in Responsible Charge (ORC) -Amv Adrian-Nlunro Grade PC 1 Phone
336-373-5854
Certified Laboratories (1) 629,551 (2) 57
......
CHECK BOX IF ORC HAS CHANGED Person(s) Collecting Samples Chris Gibbons
� D213t. or ��hvlFi
ORIGINAL and ONE COPY�O.
Mail
ATTN: Central Files
/D /�� ^✓
Div. of Water Quality E
.�
DENR
Wi
1617 MAIL SERVICE CENTER W
1ston-:11Gm (SIGNA R F OPE R IN RESPONSIBLE CHARGE)
,3i�ttlal office
DATE
TO
RALEIGH, NC 27699-1617
BY THIS SIGNATURE, I CE
TIFY THAT THIS REPORT 1S ACCURATE
AND COMPLETE
THE BEST OF MY KNOWLEDGE.
150050
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DWQ Form MR-1
Devised 7/2000) �) 5

4 p
MCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
ALLAN E WILLIAMS PE
WATER RESOURCES DIRECTOR
CITY OF GREENSBORO
PO BOX 3136
GREENSBORO NC 27402-3136
Dear Mr. Williams:
Division of Water Quality
Coleen N. Sullins
Director
December 13, 2010
N.C. De, t
Winston.;
Regiona i -
Dee Freeman
Secretary
Subject: Receipt of permit renewal application
NPDES Permit NCO081426
N. L. Mitchell WTP
Guilford County
The NPDES Unit received your permit renewal application on December 9, 2010. A member of the
NPDES Unit will review your application. They will contact you if additional information is required to complete
your permit renewal. You should expect to receive a draft permit approximately 30-45 days before your existing
permit expires.
If you have any additional questions concerning renewal of the subject permit, please contact Jeff Poupart at
[phone].
Sincerely,
L�� 4C'V��
Dina Sprinkle
Point Source Branch
cc: CENTRAL FILES
Wllnston=Salem Regional' Office/Surface Water Protection
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One tt�� 1
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748 NorthCarolina
i n
Internet: www.ncwaterquality.org
An Equal Opportunity \ Affirmative Action Employer

` City of Greensboro
North Carolina N-C,
Winston-Salern nRegional 6fficr
December 6, 2010
Dina Sprinkle
NC DENR/DWQ/Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Mrs. Sprinkle:
This letter is to request renewal of an existing NPDES permit. Please find enclosed a completed
permit renewal package for the City of Greensboro's N.L. Mitchell Water Treatment Plant —
NPDES permit, No. NC0081426. Since the current permit was issued, the plant has converted to
ferric sulfate as the primary coagulant.
If you should need any additional information, please contact Interim Water Supply Manager at
336-373-7643.
Sincerely,
,,A(e4 W��L
Allan E. Williams, PE
Director of Water Resources
Cc: COGWR File
Enclosures
P.O. Box 3136 : Greensboro, NC 2 7402-3136 , www.greensboro-nc.gov : (336) 3 73-CITY (2489) = TTY # 333-6930

NP DES PERMIT APPLICATION - SHORT FORM C - Y TP
For discharges associated with water treatment plants
r__�--____
RECC_ ,: rF-,,
Mail the complete application to: N.C. Der' -
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit ZC a 7 2,lJ j
1617 Dail Service Center, Raleigh, XC 27699-1617 Winston
Reaion;�' ,
NADES Permit Number INC0081426
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name
City of Greensboro
Facility Name
N.L. Mitchell Water Treatment Plant
Mailing Address
PO Box 3136
City
Greensboro
State / Zip Code
North Carolina 27402-3136
Telephone Number
[phone]
Fax Number
[phone]
e-mail Address
[e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road 1041 Battleground Avenue
City
Greensboro
State / Zip Code
North Carolina 27408
County
Guilford
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name. Barry Parsons
Mailing Address 6268 Bryan Park Road I
r _
City Brown Summit ' u t i_ i i]
ti d I
State / Zip Code North Carolina 27214-9755-
Telephone Number [phone] == 1
Fax Number [phone]
4. Ownership Status:
Federal ❑ State ❑ Private ❑ Public
s. Type of treatment plant:
Page 1 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C = WTP
For discharges associated with water treatment plants
® Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
❑ Ion Exchange (Sodium Cycle Cationic ion exchange)
❑ Green Sand Filter (No sodium recharge)
❑ Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener ❑
6. Description of source water(s) (i.e. groundwater, surface water)
Surface Water (Lake Brant)
7. Describe the treatment process(es) for the raw water:
Thetreatment process is coagulation floculation using ferric sulfate as the primary
coagulant entering sedimentation basins, followed by filters and then disinfected with
sodium hypochlorite.
S. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
Settling and Decanting
9. Number of separate discharge points: 1
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous ® Intermittent ❑
If intermittent:
Days per week discharge occurs: Duration:
11. Plant design potable flowrate 24 MGD
Backwash or reject flow 180,567 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
North Buffalo Creek Outfall is at: N 36degrees 04.876', W 079degrees 48.216'
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
Page 2 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION m SNORT FORM C ® WTP
For discharges associated with water treatment plants
Ferric Sulfate
Sodium Hypochlorite
Sodium Hydroxide
Hydrofluoricic Acid
Calcium Hydroxide
14. Is this facility located on Indian country? (check one)
Yes ❑ No
15. Additional Information:
Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, and point of addition of chemicals.
Solids Handling Plan
16. NEW Applicants
Information needed in addition to items 1-15.
New applicants must contact a permit coordinator with the NCDENR Customer
Service Center.
Was the Customer Service Center contacted? ❑ Yes ❑ No
Analyses of source water collected
Engineering Alternative Analysis
> Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of nay knowledge and belief such information is true, complete, and accurate.
Allan E. Williams, PE Water Resources Director
Printed name of Person Signing Title
Signature of
Date
2- 4-
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
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 misdemeanor punishable
by a fine not to exceed $25,000, 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 $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page 3 of 3 C-WTP 03/05

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Sample
Point
Lake Aran
11 Million Gallon
Stcmgo
- M-4.1
Alum FluorideIslorine
Bulk of
St€arage wttrzl a sturzvv
Filters 1.6 Filters 7-12
Filter
Sample Phosphate
Point ®'
} Lfm®
m
Calcium Thlosulfate
To
o Lake Dan
f itchell, Purnping
S4stlrXk
listeilraatian `;
a1»1"39
Water from Lako Dan CloQarviall
f
tet'n �
c
=Buile�ir€
d `�
::
G
a
C u silt
E- E
3
Qp
+a
-„
g� .
rn 1
TO
F-
n
aT �
`" F�Pta
a a n
.It�fcs
� v m
v�
e �
T-111.1
U Ca
Air FI:tRt�or 11!2��
Pry:-S& tiing
Chomicai Feel
To All Fll to rs
< Caustic
{} Chlorino
�a?ti��a°auRtd
So�rctent�6ian
Settled
Sample
Point
Fioz
samp4o
Point
Raw
Sample
Point
Cloarrviaall
3 Militon Gallon
.-torage
Chemical Feed Points
Sodium Permanganate
Aluminum Sulfate (!Alum)
<'
Sodium Hypochlorite (Chlorine)
Sodium Hydroxide (Caustic)
Hydrofluorosilcic Acid (Fluoride)
Corrosion Inhibitor (Phosphate)
Lime Slurry (Ume)
Ammonia (Future)
<f
Polyralurninum Chloride (PAX iii)
Calcium Thiosulfate

5C,C9, Cityof Greensboro reensor e
North Carolina
Addendum
Sludge Management Plan
The City of Greensboro's Mitchell Water Treatment Plan is a conventional surface water
treatment facility permitted to treat (filter) 24 million gallons of water per day (MGD). The water
produced by the facility meets all applicable State and Federal standards. The current average
daily production at the facility is 14 MGD.
All filter backwash wastewater from the facility flows to a settling basin on the plant site. Filter
backwash flow is intermittent based on plant treatment rate and raw water quality conditions.
The wastewater -settling basin allows for gravity settling of captured solids and is equipped with
four floating decanters, which removes fine solids prior to discharge. As filter backwash flows
through the settling basin, solids removed during the treatment process (consisting primarily of
Ferric Sulfate precipitate and the captured turbidity causing materials from the untreated raw
water) settle to the bottom of the basin leaving a clear supernatant which meets the NPDES
permit requirements.
Sludge solids generated from the treatment process are drawn off the settling basin bottom on a
daily basis and discharged directly to the City's North Buffalo/Metro system of wastewater
reclamation plants via sanitary sewer. At the wastewater reclamation plant, sludge solids from
the water plant are blended with other wastewater solids and then thickened, dewatered, and
incinerated.
P.O. Box 3136 , Greensboro, NC 27402-3136 , www.greensboro-nc.gov : (336) 373-CITY (2489) , TTY # 333-6930

V
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
28 October 2009
Mr. Allan Williams
Director of Water Resources
City of Greensboro
PO Box 3136
Greensboro, NC 27402-3136
SUBJECT: Compliance Evaluation Inspection
City of Greensboro — N. L. Mitchell WTP
NPDES Permit No. NCO081426
Guilford County
Dear Mr. Williams:
Dee Freeman
Secretary
A Compliance Evaluation Inspection (CEI) was performed on the City of Greensboro's N, L. Mitchell water. treatment
facility on. Wednesday, October 26, 2009 by Corey Basinger of the Winston-Salem Regional Office. Mr. Barry Parsons
and Mr. Ali Khan represented the City for the inspection. The inspection consisted of two parts: an on -site inspection of
the treatment facility and a file review. The following are the findings from the subject inspection.
I. Permit
The NPDES permit for the City of Greensboro's N. L. Mitchell WTP became effective July 1, 2006 and expires on June30,
.2011. This permit is for the discharge of filter backwash wastewater.
II. Records/Reports
A review of the laboratory reports and Discharge Monitoring Reports (DMRs) for the City of Greensboro's N. L. Mitchell
WTP revealed only a minor discrepancy between the generated data and the data submitted to the Division. The DMRs for
December 2008 and June 2009 will be amended and resubmitted to the Division. A copy of the laboratory data is kept on
file at the water plant. Calibration records were evaluated and deemed compliant. The records/reports were very
comprehensive and well organized.
III: Facility Site Review
The facility site review indicated that the. treatment facility is consistent with the permitted components. The subject
facility discharges filter backwash wastewater. All components were operating satisfactorily on the date of the subject
inspection.
IV. Effluent / Receiving Stream
The WTP discharges to North Buffalo Creek (Class C-NSW in the Cape Fear River Basin). The receiving waters appeared
clear of solids and debris on the date of the subject inspection.
V. Flow Measurement
The flow meter is calibrated by WTP staff at least once a year.
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An EqualOppaiunity,Affirmative Action Employer
One
Noi-thCarolina
Natur4711Y

Mr. Allan Williams
October 28, 2009
Page 2 of 2
V1. Self -Monitoring Program
All monitoring was performed in compliance with the NPDES Permit No. NC0081426. A review of the discharge
monitoring reports (DMRs) for the time period of July 2008 through July 2009 demonstrated that the N. L, Mitchell WTP
did not experience any effluent permit limit violations that had not been addressed by previous correspondence from the
Division.
VII. Operations and Maintenance
Operations and maintenance at the time of the subject inspection was deemed very good. No problems were noted. All
maintenance activities are documented in the form of work orders.
VIII. Other
The previous inspection was conducted on October 24, 2007.
If you have any questions or concerns regarding this report, please contact Corey Basinger at 336-771-4963.
Sincerely,
*Steveedder
Water Quality Supervisor
Cc: Mr. Barry Parsons (City of G'boro, 6268 Bryan Park Road, Brown Summit, NC 27214)
Guilford County Health Department
WUSN010"
Central Files

Form Approved
OMB No.2040-0057
Approval Expires
8-31-98
United States Environmental Protection AQencv. Washington. D.C.. 20460
Section A: National Data System Coding
Transaction Code NPDES No. Yr/Mo/Day Inspection Type Inspector FacilityType
N 5 NCO081426 09-10-26 C S 1
Facility Evaluation Rating BI QA ..........Reserved...........
4 N N
Section B: Facility Data
Name and Location of Facility Inspected:
Entry Time:
Permit Effective
1100 hrs.
Date: July 1, 2006
City of Greensboro — N.L Mitchell WTP
Water Treatment Plant
Exit Time:
Permit Expiration
1145 hrs.
Date: June 30, 2011
Name(s) of On -Site Representative(s): Title(s): Phone No(s):
Mr. Barry Parsons O erations & Treatment Superintendent 336-373-7902 (7643
Name, Address of Responsible Official:
Title: Director of Water Resources
Mr. Allan Williams
City of Greensboro
Phone No. 336-373-2055
Contacted? No
PO Box 3136
Greensboro, NC 27402
Section C: Areas Evaluated During Inspection
• Permit • Flow Measurement • Operations/Maintenance
• Records/Reports • Self -Monitoring Program
• Facility Site Review • Effluent/Receiving Waters
Section D: Summary of Findings/Comments
Permit..................................Current permit expires June 30, 2011.
Records/Reports..................The operators daily records are maintained as per permit conditions.
Facility Site Review ............ All system components were operating properly.
Effluent/Receiving Waters.. No samples collected. No visible solids. Receiving stream showed no visible adverse impacts on date of
inspection.
Flow Measurement..............No problems noted. Flow meter calibrated within the last 12 months. June 2008 and December 2008
DMRs to be amended.
Self -Monitoring Program....The DMR's are submitted as required by NPDES permit.
Operations/Maintenance ..... No problems were noted with respect to operations and maintenance.
(SEE DATA SUMMARY ATTACHED FOR THE PERIOD 07/08 —. 07/09)
Name(s) and Signature(s) of Inspectors:
Agency/Office/Telephone:
DWQ / WSRO / [phone]�;,
Date:
SignatuyofRVie;wer.-
Agency/Office:
Date:
DWQ / WSRO / [phone]
r
?y O�

Permit: NCO081426
Inspection Date: 10/26/2009
Owner • Facility: N.L. Mitchell WTP
Inspection Type: Compliance Evaluation
Compliance Schedules
Yes No
NA
NE
Is there a compliance schedule for this facility?
0
❑
0
Cl
Is the facility compliant with the permit and conditions for the review period?
■
Q
0
O
Comment:
Operations & Maintenance
Yes No
NA
NE
Is the plant generally clean with acceptable housekeeping?
■
❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge
■
Cl
Cl
n
Judge, and other that are applicable?
Comment:
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
❑
O
■
Q
Is the facility as described in the permit?
■
❑
❑
# Are there any special conditions for the permit?
❑
❑
Is access to the plant site restricted to the general public?
■
C1
0
Cl
Is the inspector granted access to all areas for inspection?
0
Cl
Q
Comment:
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
■
n
n
n
Is all required information readily available, complete and current?
■
❑
n
n
Are all records maintained for 3 years (lab. reg. required 5 years)?
■
❑
Are analytical results consistent with data reported on DMRs?
■
Cl
n
n
Is the chain -of -custody complete?
■
Q
Dates, times and location of sampling
■
Name of individual performing the sampling
Results of analysis and calibration
Dates .of analysis
■
Name of person performing analyses
Transported COCs
■
Are DMRs complete: do they include all permit parameters?
■
n n n
Has the facility submitted its annual compliance report to users and DWQ?
■
0 O O
(If the facility is = or> 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? 0 ❑ ❑ ■
Page # 3

v
Permit: NCO081426 Owner - Facility: N.L. Mitchell WTP
Inspection Date: 10/26/2009 Inspection Type: Compliance Evaluation
Record Keeping
Yes
No
NA
NE
Is the ORC visitation log available and current?
■
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
■
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility classification?
■
❑
❑
❑
Is a copy of the current NPDES permit available on site?
■
❑
Cl
❑
Facility has copy of previous year's Annual Report on file for review?
■
❑
❑
❑
Comment: DMRs for June 2009 and December 2008 will be amended to reflect most
accurate data. No violations noted.
Effluent Pipe
Yes
No
NA
NE
Is right of way to the outfall properly maintained?
■
❑
❑
❑
Are the receiving water free of foam other than trace amounts and other debris?
■
❑
❑
❑
If effluent (diffuser pipes are required) are they operating properly?
❑
❑
■
Comment:
Flow Measurement - Effluent
Yes
No
NA
NE
# Is flow meter used for reporting?
■
❑
❑
❑
Is flow meter calibrated annually?
■
❑
❑
❑
Is the flow meter operational?
■
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
❑
■
Comment:
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
❑
❑
❑
■
Is sample collected below all treatment units?
®
❑
❑
❑
Is proper volume collected?
■
❑
❑
❑
Is the tubing clean?
®
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
®
❑
❑
❑
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
®❑
❑
❑
Comment:
Page # 4

t�i�C�iallr�'j}
iv.C. [Seat. or V14R
DEC"? 1 2009
Water Pollution Control System Operator Designation For M. "Lfilonal We
WPCSOCC
NCAC 15A 8G .0201
Permittee Owner/Officer Name: A �c, n ," I I ( i (a �l
Mailing Address:
City: i�(di MXX
Signature:
.................................
State: W Zip: )� Phone #: (3ys)
Date: /� •lam-®�7
Facility Name: ^ ; �,� �� P /� �i�f�O II&J/— Permit #: ALL oel\Sj `'t Z- (�,
County: (S�,c i IFf'�-,
! SUBMIT A SEPARATE FORM FOR EACH TYPE OF SYSTEM!
Facility Type & Grade:
Type Grade Type Grade
Biological WWTP Surface Irrigation N/A
Physical/Chemical _ Land Application N/A
Collection System
Operator in Responsible Charge (ORC)
r'a
Print Full Name:
Certificate Type / GFpde / Number: f C / i� 9 lo Work Phone #: (5.1 ) 3 - 7 3 '" '7 70,1,�'
Signature: Date: f
"I certify that I agree to my designation as the Operator in Responsible Charge for the facility noted. I understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Back -Up Operator in Responsible Charge (BU ORC)
Print Full Name:
Certificate Type / rade / Number: �� �i -7 -9 Work Phone #: 0 3G-) 3 7 7
Signature:.(' - Date:
"I certify that I agree to tr} designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the BU ORC as set forth in 15A NCAC 08G .0205 and failing to do so can
result in Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
...................................................................................................................................................
Mail or Fax to: WPCSOCC
1618 Mail Service Center
Raleigh, NC 27699-1618
Fax: [phone]
(See next page for designation of additional back-up operators. Designation of more than one back-up operator is optional.)
Revised 8-2007

WATF90�'�.
r
o �
December 19, 2008
629
Ms. Marie Shandor
N.L. Mitchell WTP Lab (City of Greensboro)
1041 Battleground Ave.
Greensboro, NC 27408-
..
Michael F. Easley, Godemor C>;
William G. Ross Jr., Secretary.
North Carolina Department of Environment and Natural Resources .i:•<
Coleen H. Sullins, Director
Division of Water Quality
RECEIVED
N•C DP.nt. of ENR
DEC 2 3 2008
Winston-Salem
Regional Office
SUBJECT: Wastewater/Groundwater Laboratory Certification Renewal
Dear Ms. Shandor:
The Department of Environment and Natural Resources, in accordance with the provisions of NC GS 143-215-
.3 (a) (10), 15 NCAC 2H .0800, is pleased to renew certification for your laboratory to perform specified
environmental analyses required by EMC monitoring and reporting regulations 15 NCAC 2B .0500, 2H .0900 and
2L .0100, .0200, .0300, and 2N .0100 through .0800.
Enclosed for your use is a certificate describing the requirements and limits of your certification. Please review
this certificate to insure that your laboratory is certified for all parameters required to properly meet your
certification needs.
Please contact us at 919-733-3908 if you have questions or need additional information.
Sincerely,
/4v- ox�
Pat Donnelly
Certification Branch Manager
Laboratory Section
Enclosure
cc: Ramon Cook
Dana Satterwhite
Winston-Salem Regional Office
Noe Carolina
Niurally
Laboratory Section 1623 Mail Service Center; Raleigh, NC 27699-1623 Phone [phone]
Location: 4405 Reedy Creek Road; Raleigh, NC 27607 _ FAX [phone]
Internet: www.dwglab.org/Customer Service 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

Certificate No.: 629
STATE OF NORTH CAROLINA DEPARTMENT OF THE
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
LABORATORY CERTIFICATION PROGRAM
In accordance with the provisions ofN.C.G.S: 143-215.3 (a) (1), 143-215.3 (a)(10) and NCAC 2H.0800:
N.L. MITCHELI, WTP LAB (CITY OF GREENSBORO)
Is hereby certified to perform environmental analysis as listed on Attachment I and report monitoring data to DWQ for
compliance with NPDES effluent, surface water, groundwater, and pretreatment regulations.
By reference 15A NCAC 2H .0800 is made a part of this certificate.
This certificate does not guarantee validity of data generated, but indicates the methodology, equipment, quality control procedures,
records, and proficiency of the laboratory have been examined and found to be acceptable.
This certificate shall be valid until December31, 2009
V
Pat Donnell
Y

Attachment c
North Carolina Wastewater/Groundwater Laboratory Certification
Certified Parameters Listing .`
Lab Name N.L. Mitchell WTP Lab (City of Greensboro) Certificate Number: 629
Address: 1041 Battleground Ave. Effective Date: 01/01/2009
Greensboro, NC 27408- Expiration Date: 12/31/2009
Date of Last Amendment:
The above named laboratory, having duly met the requirements of 15A NCAC 21-1.0800, is hereby certified for the measurement of the parameters listed below.
CERTIFIED PARAMETERS
INORGANICS
RESIDUAL CHLORINE
Std Method 4500 Cl G
pH
Sid Method 4500 H B
RESIDUE SETTLEABLE
Std Method 2540F
RESIDUE SUSPENDED
Std Method 2540D
TEMPERATURE
Std Method 2550B
TURBIDITY
Sid Method 2130B
METALS
ALUMINUM
Sid Method 3113E
This certification requires maintance of an acceptable quality assurance program, use of approved methodology, and satisfactory performance on evaluation samples. Laboratories are
subject to civil penalties and/or decertification for infractions as set forth in 15A NCAC 21-1.0807.

�0� W'4%9Q Michael F. Easley, Governor
\Q �i William G. Ross Jr., Secretary
C� North Carolina Department of Environment and Natural Resources
.� Coleen H. Sullins, Director
Division of Water Quality
25 October 2007
Mr. Allan Williams
Director of Water Resources
City of Greensboro
PO Box 3136
Greensboro, NC 27402-3136
SUBJECT: Compliance Evaluation Inspection
City of Greensboro — N. L. Mitchell WTP
NPDES Permit No. NCO081426
Guilford County
Dear Mr. Williams:
A Compliance Evaluation Inspection (CEI) was performed on the City of Greensboro's N. L. Mitchell water treatment
facility on Wednesday, October 24, 2006 by Corey Basinger of the Winston-Salem Regional Office. Mr. O. Kelly Patton
represented the City for the inspection. The inspection consisted of two parts: an on -site inspection of the treatment
facility and a file review. The following are the findings from the subject inspection.
I. Permit
The NPDES permit for the City of Greensboro's N. L. Mitchell WTP became effective July 1, 2006 and expires on June 30,
2011. This permit is for the discharge of filter backwash wastewater.
II. Records/Reports
A review of the laboratory reports and Discharge Monitoring Reports (DMRs) for the City of Greensboro's N. L. Mitchell
WTP revealed no discrepancy between the generated data and the data submitted to the Division. A copy of the •laboratory
data is kept on file at the water plant. Calibration records were evaluated and deemed compliant. The records/reports were.
very comprehensive and well organized.
III. Facility Site Review
The facility site review indicated that the treatment facility is consistent with the permitted components. The subject
facility discharges filter backwash wastewater. All components were operating satisfactorily on the date of the subject
inspection.
IV. Effluent / Receiving Stream
The WTP discharges to North Buffalo Creek (Class C-NSW in the Cape Fear River Basin). The receiving waters appeared
clear of solids and debris on the date'of the subject inspection.
V. Flow Measurement
The flow meter is calibrated by WTP staff at least once a year.
VI. Self -Monitoring Program
All monitoring was performed in compliance with the NPDES Permit No. NC0081426. A review of the discharge
monitoring reports (DMRs) for the time period of September 2006 through August 2007 demonstrated that the N hoc
Mitchell WTP did not experience any effluent permit limit violations that had not been addressed bprev Carolina
Y P �iurally
North Carolina Division of Water Quality 585 Waughtown Street Phone [phone] Customer Service
Winston-Salem Regional Office Winston-Salem, NC 27107 Fax [phone]
Internet: www.ncwaterquality.org
An Equal Opportunity/Affirmative Action Employer — 50% Recycled110% Post Consumer Paper

Mr. Allan Williams
October 26, 2006
Page 2 of 2
correspondence from the Division. There was a minor problem with the January 2007 DMR that resulted in the Aluminum
were consistent, this Office will deem this inconsistency as a computer glitch. This will not be considered a violation.
VII. Operations and Maintenance
Operations and maintenance at the time of the subject inspection was deemed very good. No problems were noted. All
maintenance activities'are documented in the form of work orders.
VIII. Other
The previous inspection was conducted on October 26, 2007.
If you have any questions or concerns regarding this report, please contact Corey Basinger at 336-771-4963.
Sincerely,
Steve W. Tedder
Water Quality Supervisor
Cc: Mr. 0. Kelly Patton, 1041 Battleground Avenue, G'boro, NC 27408
Guilford County Health Department
XRT"ts
Central Files

Form Approved
OMB No.2040-0057
Approval Expires
8-31-98
United States Environmental Protection Agencv. Washington_ D.C.- 20460
Section A: National Data System Coding
Transaction Code NPDES No. Yr/Mo/Day Inspection Type Inspector FacilityType
Facility Evaluation Rating BI QA ..........Reserved...........
4 N N
Section B: Facility Data
Name and Location of Facility Inspected:
Entry Time:
Permit Effective
1405 hrs.
Date: July 1, 2006
Exit Time:
1450 hrs.
Permit Expiration
Date: June 30, 2011
City of Greensboro — N.L Mitchell WTP
Water Treatment Plant
Name(s) of On -Site Representative(s): Title(s): Phone No(s):
Mr. 0. Kelly Patton Operations & Treatment Superintendent 336-373-7902 (7643)
Name, Address of Responsible Official:
Title: Director of Water Resources
Phone No. 336-373-2055
Contacted? No
Mr. Allan Williams
City of Greensboro
PO Box 3136
Greensboro, NC 27402
Section C: Areas Evaluated During Inspection
• Permit • Flow Measurement • Operations/Maintenance
® Records/Reports ® Self -Monitoring Program
s Facility Site Review • Effluent/Receiving Waters
Section D: Summary of Findings/Comments
Permit..................................Current permit expires June 30, 2011.
Records/Reports ..................The operators daily records are maintained as per permit conditions.
Facility Site Review ............ All system components were operating properly.
Effluent/Receiving Waters.. No samples collected. No visible solids. Receiving stream showed no visible adverse impacts on date of
inspection.
Flow Measurement..............No problems noted. Flow meter calibrated within the last 12 months. January 2007 DMR to be amended.
Self -Monitoring Program.... The DMR's are submitted as required by NPDES permit.
Operations/Maintenance ..... No problems were noted with respect to operations and maintenance.
(SEE DATA SUMMARY ATTACHED FOR THE PERIOD 09/06 — 08/07)
Names) and Si nature(s) of Inspectors:
Agency/Office/Telephone:
Date:
✓1
DWQ / WSRO / [phone]
Signature of Revie er:
Agency/Office:
Date:
DWQ / WSRO / [phone]
A7
b ��

Permit: NCO081426
Inspection Date: 10/24/2007
Owner- Facility: N.L. Mitchell WTP
Inspection Type: Compliance Evaluation
Operations & Maintenance
Yes
No
NA
NE
■
n
n
n
—15=tbg-plant-�r�e�t�„-,�itn�-��-n�rt�P+��
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge
■
n
n
n
Judge, and other that are applicable?
Comment:
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
❑
n
■
n
Is the facility as described in the permit?
■
n
n
# Are there any special conditions for the permit?
n
n
■
n
Is access to the plant site restricted to the general public?
■
n
n
n
Is the inspector granted access to all areas for inspection?
■
n
n
n
Comment:
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
■
n
n
n
Is all required information readily available, complete and current?
■
n
n
n
Are all records maintained for 3 years (lab. reg. required 5 years)?
■
n
n
n
Are analytical results consistent with data reported on DMRs?
n
■
n
n
Is the chain -of -custody complete?
■
❑
n
n
Dates, times and location of sampling
Name of individual performing the sampling
■
Results of analysis and calibration
■
Dates of analysis
■
Name of person performing analyses
Transported COCs
■
Are DMRs complete: do they include all permit parameters?
®
n
n
n
Has the facility submitted its annual compliance report to users and DWQ?
■
n
n
n
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
n
n
■
n
Is the ORC visitation log available and current?
■
n
n
n
Is the ORC certified at grade equal to or higher than the facility classification?
■
n
n
n
Is the backup operator certified at one grade less or greater than the facility classification?
■
n
n
n
Is a copy of the current NPDES permit available on site?
■
n
❑
n
Page # 3

Permit: NC0081426
Inspection Date: 10/24/2007
Owner- Facility: N.L. Mitchell VVFP
Inspection Type: Compliance Evaluation
Record Keeping
Yes
No
NA
NE
■
n
n
n
FacdityLhas::=er-t-e"e-Jer-review?
Comment: January 2007 aluminum data was inconsistent with bench sheets.
However, bench sheets and City database were consistent. It appears to be a
computer glitch as only Aluminum was affected and it did not occur in any other
months. An amended report was received on 10/25/07. This is not considered a
violation.
Effluent Pipe
Yes
No
NA
NE
Is right of way to the outfall properly maintained?
■
n
n
n
Are the receiving water free of foam other than trace amounts and other debris?
■
❑
If effluent (diffuser pipes are required) are they operating properly?
n
n
■
n
Comment:
Flow Measurement - Effluent
Yes
No
NA
NE
# Is flow meter used for reporting?
■
n
n
n
Is flow meter calibrated annually?
■
n
n
n
Is the flow meter operational?
■
❑
n
❑
(If units are separated) Does the chart recorder match the flow meter?
n
n
n
■
Comment`
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
■
n
n
n
Is sample collected below all treatment units?
■
n
n
n
Is proper volume collected?
®
n
n
n
Is the tubing clean?
®
n
n
n
Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)?
n
n
n
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
■
n
n
❑
Comment:
Page # 4

Office of the City Manager
City of Greensboro
February 8, 2007
Mr. Matt Matthews
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
--- - RECEIVED
I N.C. bent. Of EHFc
FEB i h 2007
Ro, !stcni5alem
ffice
GREENSBORO N fie^:cnalOf+lce
Certified Mail 7005 1820 0006 7147 8648
Return Receipt Requested
Subject: Delegation of Signature Authority
NPDES Program Signatory Authority
Pretreatment Program Signatory Authority
City of Greensboro, North Carolina
Guilford County
Dear Mr. Matthews:
In response to the State of North Carolina (and Environmental Protection Agency) requirements
to submit Delegation of. Signatory Authority for the NPDES Program and Pretreatment Program,
the City of Greensboro hereby submits the following delegation of signatory authority. The
signatory delegations listed herein will be effective immediately and will remain in effect until
further notice.
NPDES Signatory Authority
Signatory Authority for all NPDES Program documents. for NPDES Permit NCO024325 (North
Buffalo POTW) and NPDES Permit NCO047384 (T. Z. Osborne POTW) including but not
limited to: NPDES Permit Applications, Discharge Monitoring Reports, Annual POTW Reports,
Annual Sludge Reports, is hereby delegated to the Director of Water Resources and if necessary,
further delegated to the Water Reclamation Manager. In addition, Signatory Authority for the
Annual Sludge Report is further delegated to the Operator in Responsible Charge (ORC) of the
T. Z. Osborne Publicly Owned Treatment Works (POTW).
Signatory Authority for all NPDES Program documents for NPDES PerrnitriV v0:8:14%6.)
(Mitchell_ later Plarita) and NPDES Permit NCO081671 (Townsend Water Plant) including but
not limited to: NPDES Permit Applications and Discharge Monitoring Reports, is hereby
delegated to the Director of Water Resources and if necessary, further delegated to the Water
Supply Manager.
One Governmental Plaza, P.O. Box 3136, Greensboro, NC 27402-3136 [phone]
2317

Page 2 Signatory Authority Delegation Letter fYom Mitchell Johnson to NC-DWO
February 8, 2007
Pretreatment Program Signatory Authority
Section 2 of the City of Greensboro Sewer Use and Pretreatment Ordinance states:
"Except as otherwise provided herein, the Industrial Waste Section of the Utilities Department
(former name of Water Resources Department) shall administer, implement and enforce the
provisions of this ordinance, Any powers granted to or ditties imposed upon the City Manager,
Public Utilities Director (former name of Water Resources Director), Wastewater Treatment
Manager or Industrial Waste Section Supervisor may be delegated to other City personnel. "
Signatory Authority for all Pretreatment Program documents for NPDES Permit NCO024325
(North Buffalo POTW) and NPDES Permit NCO047384 (T. Z. Osborne POTW) including but
not limited to: Pretreatment Annual Report, Headworlcs Analysis Submittal, Industrial Waste
Survey Submittal, Long Term Monitoring Plan Submittal, Significant Industrial User Permits,
Enforcement Response Plan Submittal, Notices of Violation/Other Enforcement Actions, is
hereby delegated to the Director of Water Resources -and further delegated to the Water
Reclamation Manager, Laboratory/Industrial Waste Supervisor and Pretreatment Coordinator.
Specific Enforcement Action signatory delegation will be in accordance with the most current
DWQ approved Enforcement Response Plan on file.
If you have any questions, please contact Allan Williams at 336-373-2055.
Sincerely,
MitttellE. Johnson
City Manager
cc: Allan Williams, Director of Water Resources
Don Howard, Water Reclamation Manager
Steve Drew, Water Supply Manager
Martie Groome, Laboratory and Industrial Waste Section Supervisor
Sharon H. Miller, Pretreatment Coordinator
Jeff Poupart, DWQ PERCS Unit (provided in 2006 Pretreatment Annual Report)
Steve Tedder, DWQ Winston-Salem Regional Office Supervisor

I Complete items 1, 2, and 3. Also complete
item 4 if Restricted Delivery is desired.
Print your name and address on the reverse
so that we can return the card to you.
Attach this card to the back of the mailpiece,
or on the front if space permits.
Article Addressed to:
Mr. Steven Drew
City of Greensboro -Water Resources
PO BOX 3136
Greensboro, NC 27402
09 2250` 0004: 10;83216
X El Agent
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If YES, enter delivery address below: �0 No�\
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ass ijVlail ' F
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• Sender: Please print your name, address, and ZIP+41 in this box•
DIVISION OF WATER RESOURCES'!
Water Quality Regional Operations
I
450 West Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
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