NC0026051_Historical information_20121231

sE 0 E 11 Ei
January 26, 2012
Rc: Notice of Voluntan Membership Termination - UCFRBA
Dear Ms. Ruhlman:
If you have any questions, please contact me at [phone].
cc:
JRP/cs
Durham Counts' was recently issued a new NPDES permit (NC0026051) with reduced stream monitoring
requirements. The cost of completing this sampling with our personnel is significantly less than the cost
of our membership in the Upper Cape Fear River Basin Association (UCFRBA), and therefore, we are
terminating our membership as of June 30. 2012. Completing sampling with our staff will also improve
our response time to potential stream issues.
The Memorandum of Agreement (MOA), Page 3, Paragraph 2 states, “Any UCFRBA permittee may
terminate and cancel its participation in this MOA by providing 90 days written notice to the UCFRBA.
the DWQ Coalition Coordinator, the appropriate DWQ Regional Office, and the DWQ Point Source
Compliance/Enforcement Unit.”
RETURN RECEIPT REQUESTED
CERTIFIED MAIL # 7008 1830 0004 1522 0599
Danny Smith. DWQ Raleigh Regional Office Surface Water Supervisor
Jeff Poupart. DWQ Point Source Branch Supervisor
Kevin Eason, UCFRBA Board Chairman
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
UTILITY DIVISION
Ms. Carrie Ruhlman
Environmental Sciences Section
NC DENR-DWQ
1601 Mail Service Center
Raleigh. North Carolina 27699-1601
TRIANGLE WASTEWATER TREATMENT PLANT
5926 NC Highway 55 East, Durham, N.C. 27713 • [phone] • Fax [phone]
Pniial FmnlnvmAnt/A f'-fimiA/*tir\v» PtvwJm
Sincerely,
Zoseph R. Pearce, P.E.
' Utility Division Manager
NC DENR
Raleigh Regional Off’ce
C4
January 31,2012
SUBJECT:
Dear Mr. Pearce:
An Equal Opportunity \ Affirmative Action Employer
I
Beverly Eaves Perdue
Governor
You should initiate follow-up toxicity testing upon a single WET test failure which occurs during the toxicity
testing calendar quarter.
In addition, this correspondence contains important information on the Division’s Copper and Zinc Action Level
Policy which is triggered by two or more toxicity limit violations that occur during the toxicity testing calendar quarter
specified by the toxicity testing special condition of your NPDES Permit. Attachments addressing policy implementation
and a copy of the Division’s Toxicity Reduction Guidance have been included with this Notice of Violation.
Dee Freeman
Secretary
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone]
Internet: http://h2o.enr.state.nc.us/esb/
NOTICE OF VIOLATION: NOV-2012-TX-0005
Whole Effluent Toxicity (WET) Testing
Copper and Zinc Action Level Policy
NPDES Permit No. NC0026051
Durham Triangle WWTP
Durham County
CERTIFIED MAIL: 7007 0220 0001 4482 1480
RETURN RECEIPT REQUESTED
Your facility is currently monitoring for copper and/or zinc and the data indicate that the levels of copper/zinc in
your effluent have the potential to cause an exceedance of the NC water quality action level for this (these) parameter(s) in
your receiving stream during low stream flow conditions. The policy states that whenever a facility experiences two or
more toxicity limit violations during a toxicity testing calendar quarter, the NPDES Permit will be modified to include
numeric limits for copper and/or zinc UNLESS the permittee provides one or more of the following:
Mr. Joseph R. Pearce
Director, Triangle WWTP
120 E. Parrish St.
Durham, NC 27701
This is to inform you that a review of your toxicity self-monitoring report form for the month of November 2011
indicates a violation of the toxicity limitation specified in your NPDES Permit. You should undertake necessary actions to
eliminate or reduce effluent toxicity to acceptable levels.
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, P. E.
Director
North Carolina
Naturally
OR
Written notification (a or b above) shall be sent to:
An Equal Opportunity \ Affirmative Action Employer
1
I
The permittee, upon experiencing two or more toxicity limit violations during a toxicity testing calendar
quarter must either provide DWQ with:
Please note that if you choose item b) above, you will be given nine months to submit documentation that
eliminates copper and/or zinc as causative effluent toxicants. Your final report should be comprehensive and include all
data used to support your conclusion(s). Should the data indicate copper and/or zinc as the source of effluent toxicity or if
1. Instream measurements of dissolved metal during low flow conditions that demonstrate compliance with
the Action Level standard
2. A revision of the prospective permit limit using improved inputs that in concert with existing or
additional monitoring data demonstrates compliance with the Action Level standard
3. Toxicity Identification Evaluation (TIE) results that definitively rule out copper and/or zinc as causes of
effluent toxicity
4. Demonstration by an alternative method approved by the Division and EPA that copper and/or zinc is not
the cause of toxicity
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone]
Internet: http://h2o.enr.state.nc.us/esb/
NC Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
The Division has evaluated your copper and/or zinc monitoring data. The Division has also developed a
prospective NPDES permit limit based on your facility’s instream waste concentration, the copper and/or zinc action level
criterion and a translator procedure. Based on this data your prospective copper permit limit is 17.0 pg/L and your
prospective zinc permit limit is 142.0 pg/L.
a) Written notification indicating acceptance of the prospective copper and/or zinc permit
limit. Notification is due within 30 days after the date of the second WET Notice of
Violation.
b) Written notification indicating your choice of option(s) as noted on page one of this
correspondence. Notification is due within 30 days after the date of the second WET Notice of
Violation. DWQ approval of options 1-3 (previous page) is not necessary as the Division expects
work to rule out copper and/or zinc as causative effluent toxicants to begin immediately upon the
second WET permit limit violation.
NorthCarolinaNaturally
I
You should consider submitting the above correspondence certified mail.
An Equal Opportunity \ Affirmative Action Employer
Failure to notify DWQ of your acceptance of a copper and/or zinc limit, failure to notify DWQ of your option
selection or failure to make acceptable demonstration to DWQ that copper and/or zinc are not causative effluent toxicants
within the stated time frames will result in reopening of the NPDES Permit to include copper and/or zinc numeric
limitations, as appropriate.
the data are inconclusive as to copper and/or zinc’s role as a toxicity source, then the NPDES Permit will be reopened and
the metal limits specified above will be applied to the permit. The report is due nine months after the date of the second
WET Notice of Violation.
Please note that your actions to notify DWQ of prospective limit acceptance or to notify DWQ of plan option(s)
and subsequent submission of a plan are contingent upon two or more toxicity NPDES permit limit violations occurring
during a toxicity testing calendar quarter.
Three copies of the final report shall be submitted to:
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Also note that the WET limit will remain in your NPDES permit regardless of whether metals are the source of
effluent toxicity. The data resulting from your actions to disprove copper and/or zinc as sources of effluent toxicity will
determine whether NPDES Permit limits will be assigned for these parameters. You are responsible for initiating actions
to address these issues.
If the effluent is toxic, then we expect work to commence immediately with toxic effluent samples. Failure to
initiate work with toxic effluent samples during the study period is unacceptable and will be considered a failure to make
acceptable demonstration as cited above. We recommend a minimum of three separate sampling events during the nine
month period to definitively rule out copper and/or zinc as causative effluent toxicants.
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone]
Internet: http://h2o.enr.state.nc.us/esb/
NorthCarolinaNaturally
You may consider entering into a Special Order by Consent (SOC) with DWQ. A SOC provides regulatory relief
for specific NPDES permit limit violations and, if signed, will contain a requirement to conduct a Toxicity Reduction
Evaluation. The SOC will contain a compliance schedule, stipulated penalties for failing to meet milestone activity dates
and may contain upfront penalties to settle past permit limit violations.
Sincerely,
ATTACHMENTS
cc:
An Equal Opportunity \ Affirmative Action Employer
Additional information regarding the Division’s Copper and Zinc Action Level Policy can be found at the
following web site - http://www.esb.enr.state.nc.us . Click on the “Aquatic Toxicology” Unit and go to the prompt “AT
Downloadable Files” located at the bottom of the page. This web site also contains EPA’s “Toxicity Reduction
Evaluation Guidance for Municipal Wastewater Treatment Plants.” Section 4 of this document contains pertinent
information on Toxicity Identification Evaluations.
Cindy Moore
Supervisor, Aquatic Toxicology Unit
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road. Raleigh. North Carolina 27607
Phone: [phone] \ FAX: [phone]
Internet: http://h2o.enr.state.nc.us/esb/
Danny Smith- Raleigh Regional Office (no attachments)
Tom Ascenzo- Raleigh Regional Office (no attachments)
Tom Belnick Point Source Branch (no attachments)
Pamala Myers-USEPA Region IV, Atlanta Federal Center, 61 Forsyth St., SW, Atlanta, GA 30303
(no attachments)
Central Files (no attachments)
Aquatic Toxicology Unit Files (no attachments)
If you have any questions concerning this correspondence, please contact me at [phone] or Mr. John
Giorgino at [phone].
_ TOneNorth Carolina Naturally
f
\\\
Dear Mr. Ruffin:
cc: Joseph R. Pearce. PE, Utility Div. Manager Engineering Dept. Triangle WWTP
Don Hancock, McKim & Creed, 1730 Varsity Dr. - Ste 500, Raleigh. NC 27606
Danny Smith. Raleigh Regional DWQ Office
IPS - Mark Hubbard", PE
Mr. Michael M. Ruffin, Durham County Manager
5926 NC Highway 55 East
Durham, North Carolina 27713
Beverly Eaves Perdue
Governor
Dee Freeman
Secretary
Please review the attached report, take any actions indicated or required, notify me of any items
with which you disagree and then file this report with your project records. If you have any
questions about this matter, please email me at [e-mail] or call me at
[phone].
SUBJECT: Interim Inspection
Triangle WWTP
Phase III Expansion
SRF No. CS 370 575-02
Gerald W. Horton, PE. Project Engineer
Construction Inspection Group
(i\VH/gb
C:\Documents and Settings\gwhorton\My Document$\S Projects (Ac*ive)\DURHAM Ph3 Expan SRF gwhtlnt Insp 12-03-08 DurhamCnty-Ph3.doc
Infrastructure Finance Section (formerly & aka Construction Grants and & Loans Section)
1633 Mail Service Center Raleigh, NC 27699 North Carolina
Phone: [phone] / FAX: [phone] / Internet: www.waterquality.org a \11 /v
An Equal Opportunity/Affirmative Action Employer JyUtUtUlly
• •
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, PE
Director
March 12,2012
The Construction Inspection Group (CIG) of the Infrastructure Finance Section [IFS], (formerly
Construction Grants and Loans) performed an interim inspection for the state and federally funded
portion of subject project on Thursday March 8. 2012. Interim inspections are conducted in
conjunction with the monthly progress meetings scheduled for the 2n(1 Thursday each month at
8:30 a.m. at the Triangle WWTP on NC 55 in the PC Construction field office. The next regular
scheduled meeting is Thursday, April 12, 2012.
1 6 20V V-J
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Page 2 of 3
Interim Inspection of
March 8, 2012
Durham County OB
Triangle WWTP Phase III Expansion
SRF CS 370 575-02
CONSTRUCTION INSPECTION
Work by PCC:
Feb - Mar - backfilling. Currin (sub) is done
continuing UG electrical
laid 8" & 12" lines and manhole
applied special coatings interior and exterior
worked on concrete finishing
continued wall pours, now 4 remaining and walkways
continuing placing rock anchors in old clarifier, this work is being done by Hayward-Baker,
rock anchors were not tested before proceeding on production anchors, thus PC/HB proceeding
at risk on installation
staffing level is approx 35 personnel, including National Erectors, HB, and CGS
GENERAL CONCERNS / RECOMMENDATIONS / ACTION ITEMS- UPDATES to
Comments or Concerns noted in previous progress meetings will be italicized.
9. March update - IPS yet to receive schedule of values. Please provide copy of Schedule of Values
to Gerald Horton [e-mail] via email in excel format
23. March update: meeting still needed, now plan on "big" meeting week of March 19, Owner made
special request that only certain individual (Hetesh?)from Lord & Co. attend this meeting as that
person will be familiar with the plant and system. PC receptive. [Dec.]-It is apparent a meeting on
SCADA is needed soon.
25. March update: IPS received hard copy of updated list. IFS received subcontractors list at January
meeting however list needs updating. This information may be provided via email.
26. March update: TALoving still on site working on punch list items and pump/pipe problems on
2005 work. For the record-TALoving has "completed" their work adjacent to and preceding this
contract of PCC. A Final inspection for that work was performed on this day [Feb. 8] by IFS.
27. March update: M&C stated that their Structural engineer had evaluated the very high concrete
strengths and determined there were no detrimental effects or potential, however he and PC
decided to lower the cement ratio of the mix design. Discuss concrete at next meeting related to
the extreme high strengths and if this a concern and what if anything is recommended.
29. March update: Owner prefers bus bar, Arthur Anchor, M&C Electrical engineer here today to
discuss and resolve this issue after meeting. PC discussed and recommended bus bar instead of
UG or overhead at Biosolids Electrical Building ATS and terms. McKim & Creed will respond
with recommendation.
30. March update: Arthur Anchor, M&C Electrical engineer here today to discuss and resolve
several electrical matters after today's meeting. PC contends one of the pull boxes should be a
manhole and requested Owner consider and advise on their preference.
32. Owner advised that PC needs to have additional personnel and subs attend the reclaimed water
training soon.
33. PC will be moving crane and activities away from South Rd to North Rd., Owner expressed
concern about the integrity of the stone and base course condition of the South Rd.
34. Owner concerned about fuel line routing for generator, specifically that fuel lines not be run
across floor or impede access in any way, refer to drwg E-l 3 and see comments 29) & 30)
above.
35. At March meeting discussed 2" backup NP waterline for sludge: PC will provide proposal.
36. Owner expressed concern about undermining slab at rock anchors and cautioned PC to install
flowable fill.
37. All parties will be taking off April 6, 2012 - Good Friday.
910 663-0020
919 900-0517
404 273-0709
919 707-9185NC Infrastructure Finance [e-mail] Horton, PE
Arthur Anchors
David Mackay
Chip Labonte
Matt Morin
Jim Bergloff
Scott Bissey
Greg Quail
Bryan Blake, PE
Don Hancock
TESTING - concrete breaks have been so high, in some cases > 6000 psi. engineer and contractor have
expressed concern. McKim & Creed's structural engineer will review and make recommendation if
necessary. Refer to comment 27) above.
RFIs Status - for the records there have been 91 RFIs to date and 10 are outstanding; received handout of
RFI list at March 8 meeting
Project Schedule - as of today, 210 days have elapsed on contract, with days remaining = (44% of
time remains), and billings have only come to 16% through Fe. 20, 2012 which indicates job is
beginning to be seriously behind schedule. Completion date is Dec. 3, 2012 [480 days], and
substantial completion date is Oct. 4, 2012 [420 days].
Inspectors logs - logs were reviewed in January and deemed satisfactory. Please have these available
for review at all interim inspections. Project Signage and labor information is posted.
As-builts (or Record Drawings)- Owner, Engineer and PCC are advised to keep these up to date and
available for review by IFS at all progress meetings.
o
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o
PCC, Proj. Mgr. [e-mail]
PCC, Proj. Engr. [e-mail]
PCC, Supt. [e-mail]
WJGEI (electrical) [e-mail]
WJGEI (electrical) [e-mail]
Durham County [e-mail]
Durham County [e-mail]
919 201-3356
919 544-2086
Durham County
Triangle WWTP Phase III Expansion
SRFCS 370 575-02
Page 3 of 3
Interim Inspection of
March 8, 2012
Interim Inspection & Meeting Attendees:
Joe Pearce
Ted Credle
Work anticipated next period :
Mar-Apr will be moving crane and activities away from South Rd to North Rd.
continue UG electrical
continue wall pours
finish placing anchorage at bottom of clarifier
o pour structural slab
SAFETY - FIR - PC conducts weekly safety training and had recent safety meeting with their safety
officer on site Feb 20, 2012. Also refer to comment 32) above.
CHANGE ORDERS - CO#1 is complete with submittal to IFS soon. CO#2 is finished and in process.
IFS reminded all that original signatures required with printed names and titles required. IFS provided
change order checklist via email to Don Hancock March 2.
SUBMITTALs - Status is that non are yet critical, but critical path goes through MCC submittal which
is yet to be submitted. Those that will be critical but are in review include: centrifuges/pumps, mixers
& aerators, plug valves & actuators and the generator and AutoTransfer Switch are not yet approved.
McKim & Creed. Prj Mgr. [e-mail]
McKim & Creed, Constr. Observer
[e-mail]
McKim & Creed, Elect. Engr. [e-mail]
McKim & Creed, (Capstone) [e-mail]
r
April 18,2012
SUBJECT:
Dear Mr. Pearce:
An Equal Opoonunity \ Affirmative Action Emoloyer
Beverly Eaves Perdue
Governor
Dee Freeman
Secretary
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
NOTICE OF VIOLATION: NOV-2012-TX-0020 CORRECTED COPY
Whole Effluent Toxicity (WET) Testing
Copper and Zinc Action Level Policy
NPDES Permit No. NC0026051
Durham County Triangle WWTP
Durham County
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, P. E.
Director
CERTIFIED MAIL: 7007 1490 0004 5533 6448
RETURN RECEIPT REQUESTED
Previous correspondence was sent to you concerning implementation of the Division’s Copper and Zinc Action
Level Policy. The correspondence included a prospective permit limit for copper at 17.0 jig/L and a
prospective permit limit for zinc at 142.0 pg/L. We stated that the trigger for implementing the policy would
be two or more WET limit violations, which occur during a toxicity testing calendar quarter. Please note that the
second WET limit violation has occurred and you must provide:
This is to inform you that a review of your toxicity self-monitoring report form for the month of January indicates
a violation of the toxicity' limitation specified in your NPDES Permit. You should undertake necessary actions to
eliminate or reduce effluent toxicity to acceptable levels.
a) Written notification indicating acceptance of the prospective copper and zinc permit limit. Notification is due
by May 14,2012.
Mr. Joseph R. Pearce
Director, Triangle WWTP
120 E. Parrish St.
Durham, NC 27701
North CarolinaNaturally
OR
Written notification (a or b above) shall be sent to:
Three copies of the final report shall be submitted to:
Please note that if you choose item b) above, you will be given nine months to submit documentation that
eliminates copper and zinc as causative effluent toxicants. Your final report should be comprehensive and
include all data used to support your conclusion. The report is due by January 15, 2412 2013.
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
1. Instream measurements of dissolved metal during low flow conditions that demonstrate compliance with
the Action Level standard
2. A revision of the prospective permit limit using improved inputs that in concert with existing or
additional monitoring data demonstrates compliance with the Action Level standard
3. Toxicity Identification Evaluation (TIE) results that definitively rule out copper and zinc as a cause of
effluent toxicity
4. Demonstration by an alternative method approved by the Division and EP A that copper and zinc are not
the cause of toxicity
b) Written notification indicating your choice of option(s) 1-4 below. Notification is due by May 14, 2012.
DWQ approval of options 1-3 below is not necessary as the Division expects work to rule out copper and zinc
as causative effluent toxicants to begin immediately upon the second WET permit limit violation that
occurred during January 2012.
Failure to notify DWQ of your acceptance of a copper and zinc limit, failure to notify DWQ of your option
selection or failure to make acceptable demonstration to DWQ that copper and zinc are not causative effluent
toxicants within the stated time frames will result in reopening of the NPDES Permit to include a numeric
copper and zinc permit limitation, as appropriate.
If the effluent is toxic, then we expect work to commence immediately with toxic effluent samples. Failure to
initiate work with toxic effluent samples during the study period is unacceptable and will be considered a failure to
make acceptable demonstration as cited above. We recommend a minimum of three separate sampling events during
the nine month period to definitively rule out copper and zinc as causative effluent toxicants.
North CarolinaNaturally
r
Sincerely,
cc:
An Equal Opponunity \ Affirmative Action Employer
Additional information regarding the Division’s Copper and Zinc Action Level Policy can be found at the following
web site - http://www.esb.enr.state.nc.us/. Click on the Aquatic Toxicology Unit and go to the prompt “AT
Downloadable Files” located at the bottom of the page.
If you have any questions concerning this correspondence, please contact Ms. Cindy Moore at [phone] or Mr.
John Giorgino at (919) 743- 8441.
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
Danny Smith- Raleigh Regional Office (no attachments)
Tom Ascenzo- Raleigh Regional Office (no attachments)
Tom Belnick Point Source Branch (no attachments)
Pamala Myers-USEPA Region IV, Atlanta Federal Center, 61 Forsyth St., SW, Atlanta, GA 30303
(no attachments)
Central Files (no attachments)
Aquatic Toxicology Unit Files (no attachments)
Cindy Moore
Supervisor, Aquatic Toxicology Unit
x _One, _NorthCarolma Naturally
■f
March 28, 2012
SUBJECT:
Dear Mr. Pearce:
An Equal Opportunity \ Affirmative Action Employer
Beverly Eaves Perdue
Governor
Dee Freeman
Secretary
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
NOTICE OF VIOLATION: NOV-2012-TX-0020
Whole Effluent Toxicity (WET) Testing
Copper and Zinc Action Level Policy
NPDES Permit No. NC0026051
Durham County Triangle WWTP
Durham County
Previous correspondence was sent to you concerning implementation of the Division’s Copper and Zinc Action
Level Policy. The correspondence included a prospective permit limit for copper at 17.0 gg/L and a
prospective permit limit for zinc at 142.0 pg/L. We stated that the trigger for implementing the policy would
be two or more WET limit violations, which occur during a toxicity testing calendar quarter. Please note that the
second WET limit violation has occurred and you must provide:
CERTIFIED MAIL: 7007 0220 0001 4482 1640
RETURN RECEIPT REQUESTED
Mr. Joseph R. Pearce
Director, Triangle WWTP
120 E. Parrish St.
Durham, NC 27701
This is to inform you that a review of your toxicity self-monitoring report form for the month of January indicates
a violation of the toxicity limitation specified in your NPDES Permit. You should undertake necessary actions to
eliminate or reduce effluent toxicity to acceptable levels.
a) Written notification indicating acceptance of the prospective copper and zinc permit limit. Notification is due
by April 27, 2012.
HCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, P. E.
Director
x TOne, _ NorthCarolina Naturally
1
OR
<3
Written notification (a or b above) shall be sent to:
Three copies of the final report shall be submitted to:
An Equal Opportunity \ Affirmative Action Employer
Please note that if you choose item b) above, you will be given nine months to submit documentation that
eliminates copper and zinc as causative effluent toxicants. Your final report should be comprehensive and
include all data used to support your conclusion. The report is due by December 28, 2012.
Failure to notify DWQ of your acceptance of a copper and zinc limit, failure to notify DWQ of your option
selection or failure to make acceptable demonstration to DWQ that copper and zinc are not causative effluent
toxicants within the stated time frames will result in reopening of the NPDES Permit to include a numeric
copper and zinc permit limitation, as appropriate.
If the effluent is toxic, then we expect work to commence immediately with toxic effluent samples. Failure to
initiate work with toxic effluent samples during the study period is unacceptable and will be considered a failure to
make acceptable demonstration as cited above. We recommend a minimum of three separate sampling events during
the nine month period to definitively rule out copper and zinc as causative effluent toxicants.
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
North Carolina Division of Water Quality
Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road. Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
b) Written notification indicating your choice of option(s) 1-4 below. Notification is due by April 27, 2012.
DWQ approval of options 1-3 below is not necessary as the Division expects work to rule out copper and zinc
as causative effluent toxicants to begin immediately upon the second WET permit limit violation that
occurred during January 2012.
1. Instream measurements of dissolved metal during low flow conditions that demonstrate compliance with
the Action Level standard
2. A revision of the prospective permit limit using improved inputs that in concert with existing or
additional monitoring data demonstrates compliance with the Action Level standard
3. Toxicity Identification Evaluation (TIE) results that definitively rule out copper and zinc as a cause of
effluent toxicity
4. Demonstration by an alternative method approved by the Division and EPA that copper and zinc are not
the cause of toxicity
NorthCarolinaNaturally
Sincerely,
cc:
An Equal Opponunily \ Affirmative Action Employer
If you have any questions concerning this correspondence, please contact Ms. Cindy Moore at [phone] or Mr.
John Giorgino at (919) 743- 8441.
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
Additional information regarding the Division’s Copper and Zinc Action Level Policy can be found at the following
web site - http://www.esb.enr.state.nc.us/. Click on the Aquatic Toxicology Unit and go to the prompt “AT
Downloadable Files” located at the bottom of the page. n
Danny Smith- Raleigh Regional Office (no attachments)
Tom Ascenzo- Raleigh Regional Office (no attachments)
Tom Belnick Point Source Branch (no attachments)
Pamala Myers-USEPA Region IV, Atlanta Federal Center, 61 Forsyth St., SW, Atlanta, GA 30303
(no attachments)
Central Files (no attachments)
Aquatic Toxicology Unit Files (no attachments)
Cindy Moore
Supervisor, Aquatic Toxicology Unit
^One. _North Carolina
Naturally
April 18, 2012
Re: Permit NC0026051 Clarification
Dear Mr. Belnick:
If you have any questions, please contact me at [phone].
Encl.
cc:
JRP/cs
RETURN RECEIPT REQUESTED
CERTIFIED MAIL # 7008 1830 0004 1522 1114
Danny Smith, DWQ Raleigh Regional Office Surface Water Supervisor,
1628 Mail Service Center, Raleigh, NC 27699-1628
Stephanie Brixey, Compliance Manager
TRIANGLE WASTEWATER TREATMENT PLANT
5926 NC Highway 55 East, Durham, N.C. 27713 • [phone] • Fax [phone]
Equal Emplovment/Affirmative Action Employer
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
UTILITY DIVISION
Mr. Tom Belnick
Supervisor, Complex NPDES Permitting Unit
NC DENR - DWQ
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
are acceptable stream monitoring
• Upstream monitoring location is located on Sedwick Drive. (Latitude 35.886616, Longitude 78.89689)
• Downstream monitoring location is located on Grandale Drive. (Latitude 35.872325, Longitude 78.91325)
Please review the infonnation provided and confirm whether or not these
locations to fulfill our NPDES pennit requirement.
Sincerely,
/ Joseph Pearce, P.E.
Utility Division Manager
Durham County holds an NPDES permit (NC0026051) that requires stream monitoring. The monitoring locations
specified in the pennit are upstream at NCSR 1102 and downstream at NCSR 1100. To determine the actual road
names staff used the Department of Transportation’s Secondary' Roads Database Lookup. The road names provided
are no longer the actual names. Durham County staff has researched the locations and believe we have found the
accurate locations for stream monitoring but request clarification/approval of these locations. Included is a map and
pictures for your review.
Triangle WWTP Stream Sampling Locations
Upstream
Sedwick Drive
Lat 35.886616
Long 78.89689
Downstream
Grandale Drive
Lat 35.872325
Long 78.91325
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May 7, 2012
Re:
Dear Ms. Moore:
1.
2.
3.
RETURN RECEIPT REQUESTED
CERTIFIED MAIL #7008 1830 0004 1522 1169
Ms. Cindy Moore
Aquatic Toxicology Unit Supervisor
NCDENR-DWQ-ESS
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
TRIANGLE WASTEWATER TREATMENT PLANT
5926 NC Highway 55 East, Durham, N.C. 27713 • [phone] • Fax [phone]
Equal Employrnenl/Affirmative Action Employer
Response to NOV-2012-TX-0020 CORRECTED COPY with TIE Report
Whole Effluent Toxicity Testing
Copper and Zinc Action Level Policy
NPDES Permit No. NC0026051
Durham County' Triangle WWTP
Durham County
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
UTILITY DIVISION
It appears that the NCDENR Division of Water Quality Aquatic Toxicity Unit staff did not
review the available NPDES permit discharge data for our facility before issuing this NOV.
Indeed, during each Whole Effluent Toxicity Test (“WET") perfonned from February of 2009
through the present date the TWWTP has analyzed the effluent for copper and zinc, and the
review of the data shows the whole effluent toxicity during these periods was not caused by
copper or zinc.
Also of concern is the fact that your letter appears to be in the nature of an “order" directing
TWWTP to take certain affirmative acts to remain in compliance with our Pennit; however, the
NCDENR Division of Water Quality has not provided us with the appropriate method for
appealing your order as required by due process and North Carolina law.
The definition of “calendar quarter” is clearly defined in Part II of our NPDES permit No.:
NC0026051 (the "Permit") Standard Conditions Section as “[o]ne of the following distinct
periods: January through March, April through June, July through September and October
through December.” Based upon the foregoing definition the Triangle Waste Water Treatment
Plant (“I WWTP") did not have two failures in a calendar quarter, see Attachment 1. This
definition is controlling and there has been no other definition of calendar quarter incorporated
into the express tenns of our Permit.
On April 20, 2012, our office received the revised Notice of Violation (“NOV") referenced above and
based upon our review of the NOV and all relevant documents and facts we are providing the following
response:
1
1
Sincerely,
h Pearce, PE
Encl.
cc:
Joseph R. Pearce, PE
Utility Division Manager
Durham County Utility Division
5926 NC Hwy 55 East
Durham, North Carolina 27713
If you have any questions or need additional information, please feel free to call me at [phone]. If
you wish to mail me any information, please send it to:
Glen Whisler, PE, County Engineer
Danny Smith - DWQ Raleigh Regional Office Surface Water Supervisor, 1628 Mail Service
Center, Raleigh. NC 27699-1628
Tom Ascenzo - Environmental Specialist, NCDENR-DWQ. 1628 Mail Service Center, Raleigh
NC 27699-1628
Tom Belnick - Supervisor, Complex NPDES Permitting Unit, NCDENR-DWQ, 1617 Mail
Service Center, Raleigh, North Carolina 27699-1617
Pamela Myers - USEPA Region IV, Atlanta Federal Center, 61 Forsyth St., SW, Atlanta, GA
30303
4. Finally, it appears that the directives set forth in your letter are unrealistic. You refer permittees
to the USEPA document “Clarifications Regarding Toxicity Reduction and Identification
Evaluations in the National Pollutant Discharge Elimination System Program”, March 27, 2001.
I his document repeatedly states. “Expecting a TIE to immediately follow a single or infrequent
event of WET noncompliance is unrealistic.” Since our facility operations were converted from
private contractors to public staff in February 2009 we have had only the two recent failures,
which were in non-consecutive months.
You have provided several options for bringing the TWWTP into compliance. Specifically, Option b.3.
allows for the TWWTP to provide Toxicity Identification Evaluation (“TIE”) results that “definitively
rule out copper and zinc as a cause of effluent toxicity. The TWWTP already completes a multitude of
analyses contemporaneously with the WET test. These analyses in concert with the WET testing are a
HE. This data definitively rules out copper and zinc as a cause of effluent toxicity. Attachment 2 is the
TWWTP copper and zinc data (since February 2009 - when public staff began operations) with the
highest values highlighted. It must be noted that the facility was WET compliant during the sampling
events with the higher copper or zinc concentrations. Attachment 3 is a graph of copper and zinc data
collected with toxicity samples. Data points collected during the non-compliant WET events are shown
in yellow. This data demonstrates that during the WET non-compliance events, the copper and zinc
levels were at or below the typical copper and zinc levels. With respect to your recommendation for 3
samples over 9 months, our 15 samples over 36 months exceeds this recommendation. I trust that you
will accept this response and attachments as sufficient proof of compliance to resolve the issues raised in
your corrected NOV.
ATTACHMENT 1
Section A. Definitions
Version 10/29/2010
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
PDFS Permit Standard Conditions
Page 1 of 18
sampling events. These samples
as the Clean Water Act (CWA), as amended, 33 USC1251, el.
2/Month
Samples are collected twice per month with at least ten calendar days between
shall be representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days. These samples shall be representative
of the waste water discharged during the sample period.
Act or "the Act"
The Federal Water Pollution Control Act, also known
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system,
which is not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day. However, for purposes of tliis permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 ml in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period.
The Director may designate the most appropriate method (specific number and size of aliquots necessary, the time
interval between grab samples, etc.) on a case-by-case basis. Samples may be collected manually or automatically.
Composite samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour
period of discharge and combined proportional to the rate of flow measured at the time of individual
sample collection, or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period
with the time intervals between samples determined by a preset number of gallons passing the sampling
point. Flow measurement between sample intervals shall be determined by use of a flow recorder and
totalizer, and the preset gallon interval between sample collection fixed at no greater than 1/24 of the
expected total daily flow at the treatment system, or
(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period
at a constant time interval. Use of this method requires prior approval by the Director. This method may
ATTACHMENT 2
Chronic
Zinc
Pass
Pass
Pass
Pass
Pass
Pass ChV >100% (Pass)
Pass
Pass
Pass
Pass
Fail
Fathead
MinnowDate
2/10/2009
3/2/2009
4/1/2009
5/11/2009
6/1/2009
7/6/2009
8/3/2009
8/10/2009
9/7/2009
10/5/2009
11/9/2009
12/28/2009
1/4/2010
2/15/2010
3/1/2010
4/5/2010
5/10/2010
6/8/2010
7/6/2010
8/9/2010
9/7/2010
10/5/2010
11/8/2010
12/7/2010
1/4/2011
2/1/2011
2/7/2011
3/1/2011
4/5/2011
5/9/2011
6/7/2011
7/5/2011
8/8/2011
9/6/2011
10/4/2011
11/7/2011
11/29/2011
12/12/2011
1/9/2012
2/20/2012
Average
(mg/1)
0.465
0.068
0.160
0.134
0.155
0.112
0.110
0.104
0.096
0.160
0.144
0.079
0.111
0.111
0.131
0.121
0.146
0.110
0.092
0.051
0.052
0.091
0.400
0.083
0.106
0.134
0.069
0.090
0.098
0.078
0.054
0.077
0.038
0.065
0.050
0.071
0.086
0.080
0.098
0.082
0.114
ChV >100% (Pass)
ChV 82.16% (Fail)
Pass
Ceriodaphnia
dubia
Pass
ChV >100% (Pass)
ChV >100% (Pass)
Copper
(mg/1)
0.028
<0.002
0.004
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
<0.002
0.004
0.008
<0.002
<0.002
<0.002
<0.002
0.034
<0.002
<0.002
<0.002
<0.002
<0.002
0.007
<0.002
<0.002
<0.002|
<0.002
<0.002
<0.002
<0.002
0.002
0.003
0.002
0.002
0.004
Copper & Zinc Results
Chronic
ATTACHMENT 3
0.500
0.450
0.400
0.350
0.150
I
Dates
i
i
I
i
Copper & Zinc Results
Collected with Toxicity Samples
2|Points in yellow are
results for when
toxicity failed.
o z<
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0.100 •
♦ Zinc Passed(mg/I)
—H— Copper Passed(mg/I)I
0.000 — g
J3
IX
0.300 -
"no |
1 Is 0.250 4
a<ucc
0.200 -
0.050 •
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Dear Mr. Ruffin:
an
MAY 2 1 2012
An Equal Opportunity I Affirmative Action Employer
'] [p
—i
The Construction Inspection Group (CIG) of the Infrastructure Finance Section [IFS] performed
interim inspection for the state and federally funded portion of subject project on Thursday
May 10, 2012. Interim inspections are conducted in conjunction with the monthly progress
meetings scheduled for the 2nd Thursday each month at 8:30 a.m. at the Triangle WWTP on
NC 55 in the PC Construction field office. The next regular scheduled meeting is Thursday,
June 14. 2012. For the record IFS did not attend the progress meeting scheduled April 12
because of conflict on the rescheduled date of April 19.
Mr. Michael M. Ruffin, Durham County Manager
5926 NC Highway 55 East
Durham, North Carolina 27713
Beverly Eaves Perdue
Governor
Dee Freeman
Secretary
C:\Documents ano Seltings\gwhorton\My Documents\Projects (Active )\DURHAM Ph3 Expan SRF gwh'\lnt Insp 12-05-W DurliamCnty-Ph3.doc
Infrastructure Finance Section
1633 Mail Service Center, Raleigh, North Carolina 27699-1633
Location: 8,h Floor Archdale Building, 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone]
Internet: www.ncwaterqualitv.org
Gerald W. Horton. PE. Project Engineer
Construction Inspection Group
t iwn/gh
Please review the attached report, take any actions indicated or required, notify me of any items
with which you disagree and then file this report with your project records. If you have any
questions about this matter, please email me at [e-mail] or call me at
[phone].
SUBJECT: Interim Inspection
Triangle WWTP
Phase III Expansion
SRF No. CS 370 575-02
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, PE
Director
May 18, 2012
NorthCarolina 'Naturally
cc: Joseph R. Pearce. PE, Utility Div. Manager Engineering Dept. Triangle WWTP
Don Hancock, McKim & Creed. 1730 Varsity Dr. - Ste 500. Raleigh, NC 27606
Danny Smith. Raleigh Regional DWQ Office
IFS - Mark Hubbard, PE
SFR
V
Mar - May - set columns for truck loading facility, TLF
finished north & west exterior wall coatings, El R, GCS. a WBE is the coatings subcontractor
progressed on electrical duct bank in North road, where there has been considerable interference
installing roof at centrifuge area
have placed ~ 2967 CY of project total 3400 cubic yards concrete
Bryan Blake, M&C asked about status of Duke Power bringing in primary service - Duke has
transformer and coordination is needed to do the work
Durham County
Triangle WWTP Phase III Expan^n
SPECS 370 575-02
GENERAL CONCERNS / RECOMMENDATIONS / ACTION ITEMS -
Updates on Comments or Concerns noted in previous progress meetings are italicized. A response or further
discussion may be required on the following items.
9. For the Record - IPS has received previously requested schedule of values. [Dec] - Please provide
copy of Schedule of Values to Gerald Horton [e-mail] via email in excel format
23. Discussion at May meeting indicated a SC AD A coordination meeting is still necessary.
[March ] a meeting still needed, now plan on "big" meeting week of March 19. Owner made special
request that only certain individual (Hetesh?)from Lord & Co. attend this meeting as that person
will be familiar with the plant and system. PC receptive. [Dec.]-It is apparent a meeting on SCADA
is needed soon.
25. May update: IPS received hard copy of updated list of subcontractors. IPS received subcontractors
list at January meeting however list needs updating. This information may be provided via email.
29. May update: issue was not discussed at May meeting, please be prepared to discuss at June
meeting. [March] - Owner prefers bus bar. Arthur Anchor, M&C Electrical engineer here
today [March 8] to discuss and resolve this issue after meeting. [Feb] - PC discussed and
recommended bus bar instead of UG or overhead at Biosolids Electrical Building ATS and
terms. McKim & Creed will respond with recommendation.
32. May update: conducting the reclaimed water safety meeting is the Triangle WWTP ORC's
responsibility and his to set up. Ted Credle will remind/notify ORC. [March] - Owner advised
that PC needs to have additional personnel and subs attend the reclaimed w-ater training soon.
36. [March] - Owner expressed concern about undermining slab at rock anchors and cautioned PC
to install flowable fill.
38. After May progress meeting. IPS' Gerald Horton accompanied Don Hancock around project site.
39. IPS asked meeting participants if it would be possible and convenient to change monthly
progress meeting to Wednesday a.m. It was not so matter was dropped. Further PC believes
they will be completed with project ahead of schedule around September 10 and obtain
substantial completion August 31. Thus there will only be 3 or 4 more progress meetings.
The key to completion is effecting startup week of August 10 and centrifuge deliveries.
40. Engineer has made color recommendations, decision is now in Owners "court."
41. FTP. for the record. PC mentioned they had experienced a break in and theft weekend of
April 28. 29 [reported 4/30] on the project. Thieves got away with copper and electrical
hardware. Police and Sheriff Depts, were notified. Owner only has one employee at site on
weekends. Owner expressed their concern. Of note PC pointed out that a Triangle Plant
employee had called Police recently upon PC employees entering site on a recent weekend.
42. Owner is still considering options and decision is pending regarding backup power feed at
influent pump station.
43. FTP. Superintendent Jim Bergloff will be leaving this project in June to go to project in
Arkansas. All present expressed there sentiments on what a pleasure it has been to work with
Jim and the acknowledged the fine job he did. Tom Young is the replacement Superintendent.
Ae 2 of 3
Tmerim Inspection of
May 10, 2012
CONSTRUCTION INSPECTION
Work by PCC:
o
o
o
o
o
o
Interim Inspection & Meeting Attendees:
Ted Credle Durham County [e-mail] 919 544-2086
Bryan Blake, PE
Don Hancock
David Mackay
919 900-0517
404 273-0709
Gerald Horton. PE NC Infrastructure Finance [e-mail] 919 707-9185
- end of report ~
Chip Labonte
Matt Morin
Jim Bergloff
PCC. Proj. Mgr. [e-mail]
PCC. Proj. Engr. [e-mail]
PCC, Supt. [e-mail]
919 233-5261 xl63
919 219-9607 [c]
Durham County
Triangle WWTP Phase III Expansion
SPECS 370 575-02
Page 3 of 3
Interim Inspection of
May 10, 2012
Work anticipated next period :
o May - Jun - upcoming work includes masonry, shingle roof, block coat, HVAC, transformer
pad, Eq tank coating, sludge holding concrete walkways, coatings and backfill
McKim & Creed, Prj Mgr.
bblake @ mcki mcreed.com
McKim & Creed, Constr. Observer
[e-mail] 910 663-0020
McKim & Creed. (Capstone) [e-mail]
SAFETY - no issues, project has been safely operated since inception. PC conducts weekly safety
meetings 7:00 am Tuesday, all others interested are invited to attend.
CHANGE ORDERs - CO#1 and CO#2 have been submitted to IFS and are under review. At meeting
Owner asked IFS to act on COs as they are critical. Owner is still considering options regarding
backup power feed at influent pump station which may be included in CO#3.
SUBMITTALs - generator submittal was returned to PC for revisions. Fuel lines will be run overhead.
See comment 34) in Inspection Report March 8. PC stated the Dewatering Decanters submittal under
review by M&C is critical, asked if M&C could expedite, PC needs to release so they can have
equipment on job site in order to complete project.
TESTING - testing is up to date. No issues.
RFIs Status - for the record, there have been 115 RFIs to date and none outstanding according to handout at
May 10 meeting.
Project Schedule - as of today May 10, there are 147 days remaining and 273 days have elapsed. Project
is ~ 25% billed whereas 57% of time has elapsed indicating project is seriously behind schedule
however this is not a true indicator because next months billing will have substantial equipment
billings, hence PC contends project is actually around 70+% complete.
Inspectors logs - logs were reviewed at earlier meetings and deemed satisfactory. Please have these
available for review at all interim inspections.
As-builts (or Record Drawings)- Owner. Engineer and PCC are advised to keep these up to date and
available for review by IFS at all progress meetings.
July 7,2012
flJUL 1 2
Dear Mr. Pearce:
We appreciate your cooperation in this matter. If you have further questions, please give us a call.
An Equal Opportunity \ Affirmative Action Employer
Beverly Eaves Perdue
Governor
I want to acknowledge the receipt of your letter dated May 7, 2012 concerning the Division’s Action
Level Policy. I appreciate your input on the language used in DWQ permits and correspondence
regarding the toxicity testing quarter versus the calendar quarter requirement. The testing quarter is the
three month time interval that starts on the first day of the testing month assigned in your permit
(February, May, August, and November).
It is my understanding per your letter from May 7th, that you decided to select the Toxicity Identification
Evaluation (TIE) option. If your effluent remains compliant during a 9 month period ending January 15,
2013, submit a report stating that the facility had no other failures. If the facility did have a failure of the
WET requirement, then a TRE/TIE (such as EDTA chelating) will show what effect metals had on the
sample.
cc: Danny Smith- Raleigh Regional Office
Pamala Myers-USEPA Region IV
Dee Freeman
Secretary
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: http://h2o.enr.state.nc.us/esb/
Mr. Joseph R. Pearce
Utility Division Manager
Durham County Utility Division
5926 NCHWY 55 East
Durham, NC 27713
Sincerely,
Cindy Moore
Supervisor, Aquatic Toxicology Unit
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, P. E.
Director
C E 0 E
_ One NorthCarolina Naturally
919 544 8590 07/27/2012 -4
~inp
Permittee Owner/Officer Name:•
.^6 Mailing Address:
b Phone #: i 7/ ‘; .City:.• A
Signature Date._r
Facility Name:Permh
Facility Type &. Grade:
Print Full .Name
Date:
Prim Full Name:
.<52 Work Phone #: ( 5/,
Signature Date:
11. 3C. i'
Mail or Fax tc:
9.- X
!3f "i$ed
Work Phone #: ( ff/*? 1
Biological WWTP
Physical/Chemical
Collection System
Surface Irrigation
Land Application
Water Pollution Control System Operator Designatior l oi n
WPCSOCC
NCAC ISA 8G .0201
2) tzr A
Grade
N/A
N7A
Grade
ZF
Frou: DURHAM COUNTY Tl^
:J .sc
WPCSOCC
1618 Mail Service Center
Raleigh, NC 27699-1618
Fax: 919/Z33-H3-r\ _
(5« next page ‘oi des gnauon □! additional back-up operators. I.•esignaiion of more than one oack-up oper.r.or is ■n r«>
Back-Up Operator in Responsible Charge (BU ORC)
.Aw±_J±h-£2i!L__.
------!--f---'^~<r g_ <_
.4/ . Z/,4 i^> z- y _•
o ~r
State: A'' 4 Zip: 2 7'^
________
! SUBMIT A SEPARATE FORM FOR EACH TYPE OF SYSTEM !
0/
Operator in Responsible Charge {ORC)
J t !■
Certificate Type / Grade / Number: b'/i/'xZ

I eerily that 1 agree :o my designation as a Back-up Operatoi in Responsible Charge for the facility noted. I unc
[he rules and regulations pertaining to the responsibilities of the BU ORC as set forth in 15A NCAC 08G ,020f , . r
result in Disciplinary Actions b\ tie Water Pollution Control System Operators Certification Commission ”
1 certify that 1 agree :o rny designation as the Operator in Responsible Charge for the facility noted ■ understa.-! : i . ■. i
rules and regulations pertaining :o the responsibilities of the ORC as set forth in 1 5A NCAC 08G 0204 and fai i . .. •
Disciplinary Actions by the Water Pollution Ccntrol System Operators Certification Commission '
Certificate Type / Grade / Number: b/l-V C
Signature
Hvo -
IO 81 ul
Dear Mr. Ruffin:
Smcerely,
An Equal Opportunity I Affirmative Action Employer
Gerald W. Horton, PE. Project Engineer
Construction Inspection Group
The Construction Inspection Group of the Infrastructure Finance Section performed an interim
inspection for the state and federally funded portion of subject project on Thursday
Aug. 9, 2012. Interim inspections are conducted in conjunction with the monthly progress
meetings scheduled for the 2nd Thursday each month at 8:30 a.m. at the Triangle WWTP on NC
55 in the PC Construction field office. The next regular scheduled meeting will be Thursday
September 13, 2012 however, the undersigned will be on vacation thus unable to attend.
Mr. Michael M. Ruffin, Durham County Manager
5926 NC Highway 55 East
Durham, North Carolina 27713
Beverly Eaves Perdue
Governor
Dee Freeman
Secretary
cc: Joe Pearce. PE. Utility Div. Manager Engineering Dept. Triangle WWTP
Don Hancock, McKim & Creed, 1730 Varsity Dr. - Ste 500. Raleigh, NC 27606
Danny Smith, Raleigh Regional DWQ Office
IPS - Mark Hubbard. PE. Gerald Horton
SER
Please review the attached report, take any actions indicated or required, notify me of any items
with which you disagree and then file this report with your project records. If you have any
questions about this matter, please email me at [e-mail] or call me at
[phone].
SUBJECT: Interim Inspection
Triangle WWTP
Phase HI Expansion
SRF No. CS 370 575-02
C • Documents and Sel«ngs'\gwlTorton\My DocumentstProjects (AcliveADURHAM Ph3 Expan SRF gwh'Jnt Insp 12-08-13 DurhamCnty-Ph3.doc
Infrastructure Finance Section
1633 Mail Service Center, Raleigh, North Carolina 27699-1633
Location: 8lf' Floor Archdale Building, 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone]
Internet: www.ncwaterqualitv.org
NorthCarolina
Naturally
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, PE
Director
August 23, 2012
Page 2 of 3
Interim Inspection of
August 9, 2012
o
o
o
o
o
o
o
o
o
Project Budget - PC anticipates 2 more pay requests and a Final reimbursement. As of today there
have been 8 reimbursements to contractor totaling ~ $ 3 million on an original contract amount of
$10,320,000.
Durham County
Triangle WWTP Phase III Expansion
SRFCS 370 575-02
GENERAL CONCERNS / RECOMMENDATIONS / ACTION ITEMS -
Updates on Comments or Concerns noted in previous progress meetings are italicized.
49. August update: planning is continuing, PC will propose training schedule. [June] - IPS asked
status of Owner training on equipment. Response was PCC would start planning and setting up
tentative dates.
51. August update: still pending. [July] - PC noted that cracks and leaks in the Pump Room may
require injection to remedy
52. Critical path is reported to be through the electrical gear, to be set mid September.
54. [July] - Owner noted he expects all labels to be installed prior to training and testing. Also Arc
Flash testing was discussed. Joe Pearce stating facility must be level 2, not level 4.
55. Meetings are still needed on SCADA, also some screens have been provided for Owner review
and comment.
56. Owner said they are working on haul arrangements both temporary and long term for sludge
hauling.
57. The ground rods and grounding system yet to be tested. Owner advised ground rod depths may
be inadequate, as 10 ft. historically has not been adequate.
58. Application for power is being prepared. Coordination will be necessary between PC,
Catepillar and Duke Power. Generator is scheduled for delivery in September. Are there any
special requirements for generator / concrete pad interface?
59. There have been coatings issues/failures with the Sherwin Williams coating system. Please
discuss status and resolution of matter at next meeting including if extended or modified
warranty will be needed. Ow'ner indicated possibility of 10 month inspection on the 12 month
warranty.
60. IFS requested spare parts documentation be discussed, a sign off log is recommended. See
comment 48. of previous inspection reports.
61. Arc testing of electrical equipment was again discussed at August meting. Refer to comment 54.
CONSTRUCTION INSPECTION
Work by PCC:
July - August - set centrifuges on pads
installing misc metals, such as handrails, mixer supports
installing roofs
installed 10" cake lines, and nearly completed 8" and IO” lines
set transformer and working on conduit banks, electrical building
patching and coating in sludge tank and coated EQ tank
progressed on truck loading facility
setting sludge pumps
installing duct and HVAC
Work anticipated next period :
• August - September - tentative centrifuge start up and training will be September
• continue electrical conduit banks, feed and tie-ins
• begin final road work on north road
• continue work on truck loading facility
Interim Inspection & Meeting Attendees:
Joe Pearce Durham County [e-mail] 919 201-3356
David Mackay
919 900-0517
Gerald Horton. PE NC Infrastructure Finance [e-mail] 919 707-9185
~ end of report ~
Chip Labonte
Matt Morin
Tom Youngblood
Bryan Blake, PE
Don Hancock
PCC, Proj. Mgr. [e-mail]
PCC. Proj. Engr. [e-mail]
PCC. Supt.
Page 3 of 3
Interim Inspection of
August 9, 2012
919 233-5261 xl63
910 663-0020
SAFETY - no issues, project has been safely operated since inception according to PCC.
CHANGE ORDERs - determinations were issued by IFS on CO#1 and CO#2. Don Hancock and Matt
Morin are negotiating CO#3. M&C progress meeting handout lists change order issues outstanding.
SLTBMITTALs - Arthur needs whole system submittals for reviewing electrical heat tracing.
Resubmittals are pending on surge protection device, post air weir & baffles, and lighting control
panels. PC is awaiting Owner review comments on centrifuge graphics screens.
TESTING - concrete breaks have been within specs, the 3" and 6" WL were tested and passed, please
discuss compaction testing results and pipe testing results at next meeting.
RFIs Status - 3 are outstanding related to lightning protection, master labeling in Dewatering Building and
NPW pipe supports at sludge holding tanks.
Project Schedule - PC contends they are on schedule.
Inspectors logs - logs were previously reviewed and deemed satisfactory. Please have these available
for review at all interim inspections. The special structural inspections of the roof and truss system
were conducted in August.
As-builts (or Record Drawings)- Owner. Engineer and PCC are advised to keep these up to date and
available for review by IFS at all progress meetings.
IFS reviewed Davis Bacon records at last meeting which appeared to be complete and up to date.
Durham County
Triangle WWTP Phase III Expansion
SRFCS 370 575-02
McKim & Creed, Prj Mgr.
McKim & Creed. Constr. Observer
[e-mail]
McKim & Creed, (Capstone) [e-mail]
OCT 2 2 2012
October 18,2012
Re:Triangle WWTP - Permit NC0026051
Dear Mr. Wiggins,
Joseph R. Pearce, PE, Utility Division Managercc:
RHS/ds
Following a delivery of additional sodium aluminate chemical on October 16, 2012, the chemical
feed system was turned back on. Process control data collected during this event appear to be
within the normal parameters of operation and no permit problems are anticipated.
As a contingency for any future problems with the sodium aluminate feed system, a tote of liquid
polyaluminum chloride was ordered and will be stored on site as an alternative phosphorus
removal chemical. Please call me if you have any questions or concerns about this matter.
Mack Wiggins
NCDENR Division of Water Quality
3800 Barrett Dr.
Raleigh, N.C. 27699
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
UTILITY DIVISION
NC DENR
Raleigh Regional Office
TRIANGLE WASTEWATER TREATMENT PLANT
5926 NC Highway 55 East, Durham, N.C. 27713 • [phone] • Fax [phone]
Equal Employment/Affimiative Action Employer
Sincerely,
Robert H. Stewart
Triangle WWTP Superintendent
On October 15, 2012, Joe Pearce notified you that the sodium aluminate feed system was
temporarily out of service for maintenance. The discharge valve on the sodium aluminate bulk
storage tank was clogged with sodium aluminate crystals and had to be unclogged by
maintenance staff.
iQ) E 0 E E
h
S-Lopl'xca/'d
I.
^///)
IRC TEMP DO SETT
k/
0 Yes No
0 Yes No
E Yes No
^1
/ o?
No
O No
No
No
No
No
Item_____________________________
Date of sample collection*__________
Time of sample collection*__________
Sample collector’s initials or signature
Date of sample analysis*___________
Time of sample analysis*___________
Analyst initials or signature_________
Sample location__________________________________________________
*Date and time of sample collection and analysis may be the same for in situ or on-site measurements.
Are the following items documented where applicable):
pH
V
\/
V
J
J
J
J
J
J
T7T
J v
V
17
7
V
V
2 o uf
sc
•/
7
Yes
k
Yes
Yes
Yes
Yes
Regio^l Inspectors’ Checklist for F^i Parameters
Yes No~
Yes No
Yes No
I Facility Name:
NPDES#: /V6 6 o^-/
Field Lab Certification #: <4 7/_________
Lab Contact: "a. (2
Check the parameter(s) performed at this site for reporting purposes.
Total Residual Chlorine (TRC) ^Temperature (TEMP) M Specific Conductivity (SC)
pH H Dissolved Oxygen (DO) ^^Settleable Residue (SETT)
j/b^rp Regional Plant Inspector: l'\ ~7-
Regional Inspector Contact #: ^;/7-
Region: KKO
Date:
III. Total Residual Chlorine_______________________________
Total Residual Chlorine meter make and model:
Is a check standard analyzed each day of use? (Circle one: gel or liquid standard)
What is the assigned/observed value of the daily check standard?________
Is a 5-point calibration verification performed? Note date of last verification:___________
Alternatively, does the lab construct a linear regression, using 5 standards, to calculate
results? Note date of last calibration curve constructed:
True values:______ pg/L mg/L /
Obtained values: pg/L mg/L (<X
What program are samples analyzed on?________ ______________
Are results reported in proper units? Check one: Q. pg/L mg/L Ye~s
Are results reported between the facility’s permit limit and the compliance limit of 50 pg/L?
If value is less than the low standard, report as “<x”, where x=low standard cone.________
Are samples analyzed within 15 minutes of collection?_______________________________
IV. pH________________________
pH meter make and model: p
Is the pH meter calibrated with at least 2 buffers per mfg's instructions each day of use?
Note buffers used:______ ___ ____________________________________________________
Is the pH meter calibration checked with an additional buffer each day of use? Note check
buffer used:____________
Does the check buffer read within ±0.1 S.U. of the known value?______________________
Are the following items documented:
Meter calibration?_____________________________________________________________
Check buffer reading?_________________________________________________________
Are samples analyzed within 15 minutes of collection?_______________________________
Are sample results reported to 0.1 pH units?
II. General Laboratory (note any exceptions in section XI)_________________
Are instruments, meters, probes, photometric cells, etc, maintained in good condition?
Are standards, reagents and consumables used within manufacturer expiration dates?
[TRC gel standard is exempt]
___________ No
Yes No
A? 7/4 .
Yes No
[2 Yes No
B Yes No
H G
El Yes No
No
G/a.^r> No[3 Yes/o^
IX.
Yes EfNoX.
XI.Additional comments:
Electronic copies may be emailed to [e-mail] .
Revision 04/20/2012
Please submit a copy of this completed form to the Laboratory Certification program at:
DWQ Lab Certification, Chemistry Lab, Courier # 52-01-01
Yes
Yes
Yes
Yes
Yes
Yes
Yes
0 Yes
U Yes
_ Yes
2J Yes
r r

c
r
No
No
No
No
No
No
No
No
No
No
No
No
El Yes
El Yes
E| Yes
3 Yes
'3 Yes
No
No
No
No
No
No
0Yes
B Yes
El Yes
V. Temperature ____
What instrument(s) is used to measure temperature? Check all that apply: pH meter
0 DO meter Conductivity meter Digital thermometer Glass thermometer
Is the instrument/thermometer calibration checked at least annually against a NIST
traceable or NIST certified thermometer?_________
Are temperature corrections (even if zero) posted on the instrument/thermometer?
Are samples measured in situ or on-site? [REQUIRED - there is no holding time for
temperature]_______________________
Are sample results reported in degrees C?
VI. Dissolved Oxygen /-7/4<s/7
DO meter make and model:________________________________________________
Is the air calibration of the DO meter performed each day of use?
Are the following items documented:
Meter calibration?
Are samples analyzed within 15 minutes of collection?
Are results reported in mg/L?__________________________
VII. Conductivity
Conductivity meter make and model: H
Is the meter calibrated daily according to the manufacturer’s instructions? Note standard
used (this is generally a one-point calibration):
Is a daily check standard analyzed? Note value:
Are the following items documented:___________
Meter calibration?________________________
Are samples analyzed within 28 days of collection?________________________
Are results reported in pmhos/cm (some meters display equivalent pS/cm units)?
VIII. Settleable Residue_________________________________________
Does the laboratory have an Imhoff Cone in good condition?
Is the sample settled for 1 hour?________________________ ______________
Is the sample agitated after 45 minutes?_________________________________
Are the following items documented:____________________________________
Volume of sample analyzed? Note volume analyzed:_____________________
Date and time of sample analysis (settling start time)?____________________
Time of agitation after 45 minutes of settling?___________________________
Sample analysis completion (settling end time)?_________________________
Are samples analyzed within 48 hours of collection?
Are results reported in ml/L?________________
Was a paper trail (comparing contract lab and on-site data to DMR)
performed? If so, list months reviewed:______/ 2_
Is follow-up by the Laboratory Certification program recommended?
From:DURHAM COUNTY TWW 919 544 8590 L/27/2012 17.59 #092 P.001/003
FAX
PHONE: [phone] FAX: [phone]
Nov 27, 2012
FROM:
SUBJECT: WPCS Operator Designation Form
NOTES/COMMENTS:
Updated form
□ URGENT ■ FOR REVIEW C PLEASE COMMENT □ PLEASE REPLY
TRANSMITTAL
COVER
FAX:
Phone:
Robert Stewart
WWTP Superintendent
Engineering Department
Utility Division
919-544-8590
919-544-8825
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
UTILITY DIVISION
5926 Hwy. 55 East
Durham, NC 27713
FAX: [phone]
Phone:
—|
_J
NUMBER OF PAGES INCLUDING COVER: ___3
(If you do not receive all pages, please call 919-544-8280)
TO: WPCSOCC
Attn:
From:DURHAM COUNTY TWW /27/2012 18 00 #092 P.002/003919 544 8590
/ [Yi chv-
Permittee Owner/Officer Name:
Mailing zXddress:
Phone #: ( f/fi 5*/^ -City:
Signature:Date:
U/u/T/3c Permit#:
Facility Type/Grade:
Print Full Name:
Signature: Date:
Print Full Name:
777/^ Work Phone#: ( ^/^) 3^/-
//- Signature: Date:
Mail or fax the original to:WPCSOCC, 1618 Mail Service Center, Raleigh. NC 27699-1618 Fax: [phone]
Revised 10-2012
Biological WWTP
Physical/Chemical
Collection System
Surface Irrigation
Land Application
Mail or fax a copy to the
appropriate Regional Office:
Water Pollution Control System Operator Designation Form
WPCSOCC
NCAC ISA 8G .0201
Washington
943 Washington Sq Mall
Washington 27889
Fax: [phone]
Phone: [phone]
Wilmington
127 Cardinal Dr
Wilmington 28405-2845
Fax: [phone]
Phone: [phone]
Winston-Salem
585 Waughtown St
Winston-Salem 27107
Fax: [phone]
Phone: [phone]
Raleigh
3800 Barren Dr
Raleigh 27609
Fax: [phone]
Phone:919.79l.4200
Asheville
2090 US Hwy 70
Swannanoa 28778
Fax: [phone]
Phone: [phone]
Back-Up Operator in Responsible Charge (BU ORC)
Certificate Type / Grade / Number: OS LE
Mooresville
610 E Center Ave
Suite 301
Mooresville 28115
Fax: [phone]
Phone: [phone]
Fayetteville
225 Green St
Suite 714
Fayetteville 28301-5043
Fax: [phone]
Phone: [phone]
Email address:^_____j
/
Facility Name:y
SUBMIT A SEPARATE FORM FOR EACH TYPE SYSTEM!
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by the
rules and regulations pertaining to the responsibilities of the BU ORC as set forth in 15 A NCAC 08G .0205 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Operator in Responsible Charge (ORC)
I ej X
Certificate Type / Grade / Number: CSjX
- . CLc.
State: /VO Zip: P 77/ -
Work Phone #: (
_______
"l certify that I agyZto my^/s(gntjikm as the Operator in Responsible Charge for the facility noted. I understand and will abide by the rules
and regulations pertaining(tj/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.”
“kXzz
From.DURHAM COUNTY TWW ?092 P.003/003919 544 8590 /27/2012 18 03
ckt Permit tt: WFacility Name:
Print Full Name:
Certificate Type! Grade / Number: CS-1 -
Signature: Date:
Print Full Name:
Date:
Print Full Name:
Certificate Type / Grade / Number: -D-9^^
Signature: Date:
Print Full Name:
Signature:Date:
Revised 10-2012
Back-Up Operator in Responsible Charge (BU ORC)
Back-Up Operator in Responsible Charge (BU ORC)
Back-Up Operator in Responsible Charge (BU ORC)
A R. PaA-rCe
Back-Up Operator in Responsible Charge (BU ORC)
Certificate Type / Grade / Number: C6 FUc 7 / V
l/J/a 1
“I cenih that i agree to my 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 (he responsibilities of the BU ORC as set forth in 15A NCAC 08G .0205 and failing to de >o can result in
Disciplinary Actions by the W ater Pollution Control System Operators Certification Commission."
Work Phone #: ( 7/?)
H ^20^
Work Phone #: ( 7/^) ~ ^7- 3
/// lllzo
i certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 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 ‘-
Work Phone ( 7/7)
f1-
1 certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted I understand and wil abide bv the
rules and regulations pertaining to the responsibilities of the BU ORC as set forth in 15 A NCAC 086 .0205 and failing io do so . an result m
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Certificate Type / Grade / Number: 5 X 75'g? 0 Work Phone #: ( ff/?) 5W
Signature: Date: f 1-) ]
"1 certify that/Kagre/to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and u ill abide by the
rules and regulations pertaining to the responsibilities of the BU ORC as set forth in 15A NCAC 086 .0205 and failing to do so can result h
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
ULR Chlorine Curve for HACH DR 2800
Correlation Coefficient =
Stephanie's Annual Chlorine Calibration Curve
Concentration
-■-Value Read
1
OX)
0?0
2
0.1
0.1
3
IX)
2 1.1
Value Read (mg/L)
4
2.0
2.2
5
5.0
5.5
6
10.0
9.4
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-J
"5)
E
c o
*3
(U u.
C
0) o c o o
Analyzed February 16, 2012
Concentration (mg/L)__________Value Read (mg/L)
0.0 0.0
0.1 0.1
1.0 1.1
2.0 2.2
5.0 5.5
10.0 9.4
0.996205886
ULR Chlorine Curve for HACK DR 2800
Stephanie's Annual ULR Chlorine Calibration Curve
Value Read (ug/L)
1
o.o
0.0
2
15.0
12.0
3
30.0
30.0
4
100.0
108.0
5
200.0
179.0
6
300.0
281.0
J
'B) □
c o
300.0
270.0
240.0
210.0
180.0
150.0
120.0
90.0
60.0
30.0
0.0
ro
4-» c
0) o c o o
-♦-Concentration
l-■-Value Read
Analyzed January 30, 2012
Concentration (ug/L)__________Value Read (ug/L)
0.0 0.0
15.0 12.0
30.0 30.0
100.0 108.0
200.0 179.0
300.0 281.0
Correlation Coefficient = 0.997360202
r
December 3, 2012
Dear Ms. Moore:
cc:
JRP/sd
(
This letter is in response and to comply with the Aquatic Toxicology Unit letter dated July 7,
2012. Durham County is happy to report that the Triangle WWTP has been compliant with the
WET testing requirements during a nine (9) month period as of November 30, 2012. The next
required testing will occur February 2013. Attached is a summary sheet of the results for testing
since November 2011.
RETURN RECEIPT REQUESTED
CERTIFIED MAIL # 7007 0220 0004 2885 8751
Danny Smith-Raleigh Regional Office
Pamela Myers- USEPA Region IV, Atlanta Federal Center, 61 Forsyth St., Sw, Atlanta, GA 30303
Stephanie Brixey, Compliance Manager
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
UTILITY DIVISION
Ms. Cindy Moore
Aquatic Toxicology Unit Supervisor
NCDENR-DWQ-ESS
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Re: Whole Effluent Toxicity (WET) Testing
NPDES Permit No. NC0026051
Durham County7 Triangle WWTP
Durham County
TRIANGLE WASTEWATER TREATMENT PLANT
5926 NC Highway 55 East, Durham, N.C. 27713 • [phone] • Fax [phone]
Equal Employment/Affirmative Action Employer
IM5sepH/rearce. P E
tiraty Division Manager/POTW Director
Summary of Submitted Biomonitoring Test
Summary of Results
11/30/2011 001
1/25/2012 001
1/27/2012 001 *2
3/13/2012 001 *1
6/8/2012 001 *1
8/28/2012 001 *1
11/29/2012 001
Outfall
Number
Toxicity Testing
Method Used
(*See Footnote)
Date Report
Submitted to
DWQ _____Toxicity Test Type
Chronic Ceriodaphnia dubia
(Pass/Fail)______________
Chronic Ceriodaphnia dubia
(Dilutions)
Chronic Ceriodaphnia dubia
(Dilutions)______________
Chronic Ceriodaphnia dubia
(Pass/Fail)
Chronic Ceriodaphnia dubia
(Pass/Fail)
Chronic Ceriodaphnia dubia
(Pass/Fail)
Chronic Ceriodaphnia dubia
(Pass/Fail)
Pass (-25.90% Reduction)______
Pass (6.62% Reduction) & Pass (-
2.46% Reduction) *3__________
Pass (8.97% Reduction) & Pass
(4.62% Reduction) *3_________
Pass (0% Reduction) & Pass
(16.88% Reduction) *3
Collection
Dates of
Samples
11/8/2011,
11/10/2011
12/13/2011,
12/15/2011
1/10/2012,
1/12/2012
2/21/2012,
2/23/2012
5/15/2012,
5/18/2012
8/7/2012,
8/9/2012
11/6/2012,
11/8/2012
Fail (52.71% Reduction)
Dilutions Of 22.5%, 45%, 75%,
90%, 100% - Pass (ChV > 100%)
Dilutions Of 22.5%, 45%, 75%,
90%, 100% - Fail (ChV 82.16%)
Dates of
Testing
11/9/2011-
11/16/2011
12/14/2011 -
12/21/2011
1/11/2012 -
1/18/2012
2/22/2012 -
2/29/2012
5/15/2012 -
5/22/2012
8/8/2012 -
8/15/2012
11/7/2012 -
11/14/2012
*2
*1
*1
*1 = "Pass/Fail Methodology for Determining Acute Toxicity in a Single Concentration" revised July 27, 1992 NCDWQ
*2 = "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" March 23, 1998
*3 = Samples were split between Meritech and Tritest/Pace Labs
I
December 18, 2012
Subject:
Dear Mr. Pearce:
On November 27. 2012, Cheng Zhang of the Raleigh Regional Office (RRO) conducted a
compliance evaluation inspection of the subject facility. The assistance provided by you and Mr
Bob Stewart, the wastewater superintendent and operator in responsible charge (ORC) of the
was appreciated as it facilitated the inspection process. The inspection report is
attacned. 1 he following observations were made:
Beverly Eaves Perdue
Governor Dee Freeman
Secretary
Compliance Evaluation Inspection
Triangle WWTP
Permit No. NC0026051 and NCG110054
Durham County
Triangle WWTP is permitted to discharge at a rate of 12.0 MOD and consist of: mechanical
fine screens mechanical grit removal, Parshall flume,.three 5-stage biological nutrient
removal (BNR) trains, four secondary clarifiers, five tertiary sand filters, post aeration
ultraviolet disinfection, sludge lagoons, waste and return activated sludge pumpino system
methanol potassium hydroxide, and sodium hypochlorite storage and feed systems The
pknt discharges to Northeast Creek, a Class WS-IV NSW water in the Cape Fear River
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, P.E.
Director
Mr. Joseph Pearce, P.E.
Utility Division Manager
Durham County
5926 NC Hwy 55 E
Durham, NC 27713
3. Three standby power generators are tested under load monthly. The generators will be
activated automatically when primary power is out. The generators have capacity to
---------operate the entire lacilitv during power outrage.
North Carolina Divtsion of Waler Quality I &2S Mail Service Center Raleigh. NC 27699-16^8 Phone (919) 79J_nno r «
ln«a: » Barren □„« Rale,£NC 27X F ™'(ll?)
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
'' rt” dxto317’ secondar-v; and tertiary treatment and post-treatment processes, especially
the BNR system, were in good operational condition. One of the three BNR trains and
two oi the four clarifiers and was not in use because of low flow. The chemical feed
systems for methanol, sodium aluminate, potassium hydroxide were all functioning well.
2. Sludge from the lagoon was removed recently. Construction of the sludge storage
dewatering, and loading facility was slightly behind schedule at the time of inspection.
slud»ehe C°nStrUCtIOn IS comPIeted’the lagoon will serve as backup storage for wasted
1
4.
5. 1 he right of way to the outfall was well maintained. I he effluent was observed to be
6.
Sincerely,
c; n
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Rob Stewart - ORC w/attachment
Durham County
Triangle WWTP - Durham Count^^
Permit No. NC00260512 and NCG110054
Compliance Evaluation Inspection
Cheng Zhang
Environmental Specialist
Attachments
Compliance Inspection Reports
Field lab parameter (Certificate No. 671) calibration and analysis records were reviewed
during the inspection.
clear and tree of solids. No visible impacts were noted immediately downstream the
effluent pipe.
The overall condition of Triangle WWTP is compliant with Division standards. If you have any
questions regarding the attached reports or any of the findings, please contact Cheng Zhang at:
[phone] (or email: cheng.zhang@,ncdenr.gov).
I he ORC maintains a daily logbook. Lab results, chain-of-custody forms, and DMRs
were complete and current, kept in good order and ready for review. August 2012 DMR
data were compared to lab bench sheets; no data transcription errors were noted during
the inspection.
7. A compliance evaluation inspection for the NPDES stormwater permit (No.
NCG110054) was also conducted. The facility has developed and implemented a
Stormwater Pollution Prevention Plan (SPPP), which includes all required components.
All stormwater discharge outfalls were observed; these outfalls and the right-of-way were
well maintained. Please be reminded to conduct annual employee training and
second stormwater qualitative monitoring before the end of 2012.
I
EPA
National Data System Coding (i.e., PCS)
J17
Remarks211
6f
80
Entry Time/Date Permit Effective Date
01:00 PM 12/11/27 11/12/01
Exit Time/Date Permit Expiration Date
03:30 PM 16/04/3012/11/27
Other Facility Data
Robert Hall Stewart/ORC/919-544-8825/
Permit
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)Agency/Office/Phone and Fax Numbers Date
Cheng Zhang
RRO WQ//919-791-4200/
Date
EPA Form
Z2
12i3l
NPDES
NC0026051
Inspection (Check only those areas evaluated)
Operations & Maintenance
| Facility Site Review
Contacted
No
Records/Reports
Effluent/Receiving Waters
Self-Monitoring Program
Laboratory
yr/mo/day
12/11/27
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
—Reserved-
751 I I I
United States Environmental Protection Agency
Washington. D.C. 20460
Inspection Work Days
671 I 69
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Facility Self-Monitoring Evaluation Rating
_____™IJ
Fac Type
20U
Inspection Type
18lsl
Inspector
19[S]
QA
72bi]
IW Bldg Durham NC 27701/1 st Back up
Bl
71IJ
------------------------------------------------------------------------------------------Section B: Facility Data
Urging ,o POTW also include
Triangle WWTP
5926 NC Hwy 55 E
Durham NC 27701
73LU74
J11
Transaction Code
1 W 2^
Name. Address of Responsible Official/Title/Phone and Fax Number
AonLBne?Iard Carter, 120 E Parrish St Lat
ORC/919-560-0735/9195600740
.Water Compliance Inspection Rennrt
Section A: r' "
SkAe of Reviewer / Agency/Office/Phone and Fax Numbers
/560-3 (Rev 9-94) Previous editions are obsolete.
Section C: Areas Evaluated Durinc
■ Flow Measurement
B Sludge Handling Disposal
Storm Water
Section D: Summary of Finding/Comments ^Attach additional sheets of narrative and checklists as necessai
Page # 1
Operations & Maintenance
Yes No NA NE
The facility analyzes MLSS, NH3, NO3, pH, DO, and PO4 for process
Permit
Yes No NA NE
o ■ o
■ □00
o o ■ o
■ o
■ 000
Yes No NA NE
■ 000
■ 000
required) are they operating properly?■ 000
Flow Measurement - Influent
Yes No NA NE
# Is flow meter used for reporting?
■00
■ 000
■ 000
■ 000
Yes No NA NE
# Is flow meter used for reporting?
■ 000
Is flow meter calibrated annually?
■ 000
Is the flow meter operational?
■ 000
■ 000
Yes No NA NE
Page #3
Is flow meter calibrated annually?
Is the flow meter operational?
Comment:
control.
Permit: NC0026051
Inspection Date: 11/27/2012
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
(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?
■ 000
MCRT, Settleable Solids, pH, DO, Sludge ■ 0 O 0
(If units are separated) Does the chart recorder match the flow meter?
Comment: Both flow meters were last calibrated on August 30, 2012.
Chemical Feed
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex’ MLSS
Judge, and other that are applicable?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Effluent flow meter is used for reporting.
Flow Measurement - Effluent
# 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?
deWaterin9' and loadin9 fac"l,y was
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
Comment:
Chemical Feed
Yes No NA NE
Is containment adequate?■
Is storage adequate?
■ ODO
Are backup pumps available?
■ 000
Is the site free of excessive leaking?
■ ODD
Chemical feed systems for methanol
Yes No NA NE
■ ODO
■ ODD
■ ODO
Are all pumps operable?■ DOO
Are float controls operable?■ ODO
Is SCADA telemetry available and operational?
■ DOO
■ DOO
Yes No NA NE
Type of bar screen
a.Manual o
b.Mechanical
■ 000
■ ODD
Is disposal of screening in compliance?
■ ODO
Is the unit in good condition?■ 000
Yes No NA NE
Type of grit removal
a.Manual
b.Mechanical
Is the grit free of excessive organic matter?
■ 000
Is the grit free of excessive odor?■ 000
Page # 4
Comment:
Grit Removal
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Permit: NC0026051
Inspection Date: 11/27/2012
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
Is audible and visual alarm available and operational?
Comment:
Bar Screens
Comment: Chemical feed systems for methanol, KOH, sodium aluminate and NaOin
were in operational condition with adequate storage.
Pump Station - Influent
Is the pump wet well free of bypass lines or structures?
Is the wet well free of excessive grease?
Are all pumps present?
Grit Removal
Yes No NA NE
■ O
Secondary Clarifier
Yes No NA NE
■ □00
■ ODD
■ 000
■ ODO
■ ODD
■ 0 O
■ ODO
■ 000
■ ODD
■ 0 00
■ DOO
Oxidation Ditches
Yes No NA NE
Are the aerators operational?
■ ODD
■ 0 00
■ 000
■ ODO
■ ODO
■ 000
■ DOO
■ DOO
Yes No NA NE
# Is total nitrogen removal required?
■ Doo
■ ODD
Biological
# Is chemical feed required to sustain process?■ oon
Page #5
Permit: NC0026051
Inspection Date: 11/27/2012
# Is total phosphorous removal required?
Type
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
# Is disposal of grit in compliance?
Comment:
I
Are settleometer results acceptable (> 30 minutes)?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
Are settelometer results acceptable?(400 to 800 ml/l in 30 minutes)
Comment:
Nutrient Removal
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Are the aerators free of excessive solids build up?
# Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin’s surface?
Is the DO level acceptable?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately % of the sidewall depth)
Comment:
Nutrient Removal
Yes No NA NE
■
Yes No NA NE
Down flow
Is the filter media present?■ □00
Is the filter surface free of clogging?■ ODD
Is the filter free of growth?■ 0 00
Is the air scour operational?00 10
Is the scouring acceptable?OOiO
■ ODD
Yes No NA NE
Are extra UV bulbs available on site?■ 000
Are UV bulbs clean?■ 000
Is UV intensity adequate?■ 000
Is transmittance at or above designed level?■ ODO
Is there a backup system on site?■ ODD
Is effluent clear and free of solids?■ ODD
Yes No NA NE
Is automatically activated standby power available?■ 000
■ ODD
■ ODO
000 1
■ ODD
■ OOQ
■ 00 0
Comment:
Pumps-RAS-WAS
Yes No NA NE
Page #6
Comment:
Standby Power
Permit: NC0026051
Inspection Date: 11/27/2012
Filtration (High Rate Tertiary)
Type of operation:
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
Is the clear well free of excessive solids and filter media?
Comment:
Disinfection - UV
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Is nutrient removal process operating properly?
p%msZous“al'iS feed f°r nitr°9en rem°Val' and SOdiUm aluminate is fed
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Is the generator fuel level monitored?
Pumps-RAS-WAS
Yes No NA NE
Are pumps in place?■ □00
Are pumps operational?
■ 000
■ ODD
Yes No NA NE
Type of lagoons?
Facultative
# Number of lagoons in operation at time of visit?
1
Are lagoons operated in?
# Is a re-circulation line present?
0 0 ■ 0
■ ODD
■ DOO
■ DOO
■ ODD
■ ODD
Are dikes free of erosion?
■ ODD
Are dikes free of burrowing animals?
■ ODD
# Has the sludge blanket in the
0 0 ■ o
0 0 ■ 0
■ ODD
Is the lagoon free of short circuiting?
■ ODD
Laboratory
Yes No NA NE
■ ODD
■ ODO
■ ODD
■ ODO
■ ODD
■ ODD
Page #7
Permit: NC0026051
Inspection Date: 11/27/2012
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
Are there adequate spare parts and supplies on site?
Comment:
Lagoons
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius*/- 0.2 degrees?
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified lab?
# Is the facility using a contract lab?
Is lagoon free of excessive floating materials?
# Are baffles between ponds or effluent baffles adjustable?
Are dike slopes clear of woody vegetation?
Are weeds controlled around the edge of the lagoon?
Are dikes free of seepage?
lagoon (s) been measured periodically in multiple locations?
# If excessive algae is present, has barley straw been used to help control the growth?
Is the lagoon surface free of weeds?
Laboratory
Yes No NA NE
Influent Sampling
Yes No NA NE
■ 000
■ 000
Is proper volume collected?
■ 000
Is the tubing clean?
■ 0 00
■ 000
■ con
Effluent Sampling
Yes J\lo NA NE
■ DOO
■ 000
Is proper volume collected?
■ ODD
Is the tubing clean?
■ ODO
■ ODD
■ DOO
Comment:
Record Keeping
Yes No NA NE
■ DOO
■ ODD
■ DOO
■ DOO
■ 000
Dates of analysis
Name of person performing analyses
Transported COCs
Page #8
Is composite sampling flow proportional?
Is sample collected below all treatment units?
# Is composite sampling flow proportional?
Is sample collected above side streams?
Permit: NC0026051
Inspection Date: 11/27/2012
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
# Is proper temperature set for sample storage
Is the facility sampling performed as
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain-of-custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
Is sampling performed according to the permit?
Comment:
duZthe inspection6 (CertifaiCa'e No' 671 ’were chected -d reviewed
(kept at less than or equal to 6.0 degrees Celsius)?
required by the permit (frequency, sampling type representative)?
1
Record Keeping
Yes No NA NE
■
■
■ ODO
■ OOO
■ ODD
■ DOO
■ □00
■ DOO
Page #9
Is the ORC certified at grade equal to
Is the backup operator certified at one
Permit: NC0026051
Inspection Date: 11/27/2012
Owner - Facility: Triangle WWTP
Inspection Type: Compliance Evaluation
grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year’s Annual Report on file for review?
Comment:
or higher than the facility classification?
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to
(If the facility is = or >
users and DWQ?
5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
Is the ORC visitation log available and current?