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Home My WebLink AboutWQ0003504_Attachment A Certification_20170404Water Resources ENVwONMENTAL QUALITY April 4, 2017 DONALD F. GREELEY -- DIRECTOR OF WATER MANAGEMENT CITY OF DURHAM 101 CITY HALL PLAZA DURHAM, NORTH CAROLINA 27701 Dear Mr. Greeley: ROY COOPER Governor MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director Subject: Attachment A Certification Permit No. WQ0003504 City of Durham RLAP Durham County In accordance with your permit modification request received February 22, 2017, and subsequent additional information received March 28, 2017, we are forwarding herewith a modified Attachment A, certified April 4, 2017, to the City of Durham for the subject residuals program. This certification is being issued to modify Attachment A by: Addition of 1,600 dry tons per year from the Lick Creek WWTP in Durham. This modified Attachment A shall be effective from the date of certification until September 30, 2020 (i.e. expiration date of the current permit), shall void the Attachment A of Permit No. WQ0003504 that was previously issued on October 21, 2015, and shall be subject to the conditions and limitations as specified therein and well as those specified in the above -referenced permit. Please replace the Attachment A of Permit No. WQ0003504 that was issued on October 21, 2015 with this modified Attachment A. Please note that only the maps for any new residuals -generating sources and/or land application sites are attached to this letter. It is the Permittee's responsibility to ensure that a complete permit is created by inserting these documents into the previously issued permit. If any parts, requirements, and/or limitations contained in this certification or the modified Attachment A are unacceptable, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of the certification. This request shall be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes and filed with the Office of Administrative Hearings at 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such demands are made, this permit shall be final and binding. - "Nothing Compare,s:-.'—_,... State of North Carolina I Environmental Quality I Water Resources I Water Quality Permitting � Non -Discharge Permitting 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 919-807-6332 Mr. Donald F. Greeley April 4, 2017 Page 2 of 2 If you need any additional information concerning this matter, please contact Troy Doby at (919) 8076336 or troy.dobygncdenr.gov. Sincerely, '�S. Jay Zimmerman, P.G., Director Division of Water Resources cc: Durham County Health Department (Electronic Copy) Raleigh Regional Office, Water Quality Regional Operations Section (Electronic Copy) Nate Roth — Synagro Central, LLC (Electronic Copy) Digital Permit Archive (Electronic Copy) Central Files ATTACHMENT A - Approved Residual Sources City of Durham Certification Date: April 4, 2017 Permit Number: WQ0003504 Version: 3.1 Monitoring Monitoring Monitoring Permit Biological Maximum Frequency for Frequency for Frequency for Approved Owner Facility Name County Number Residuals Dry Tons Non -hazardous Metals and Pathogen & Mineralization per Year Characteristics a Nutrients; s vector Attraction Rate Reductionsas,6 City of Durham Brown WTP Durham 03-32-010(A) No 900 Once per permit See Table Below See Table Below 0.4 cycle City of Durham Williams WTP Durham 03-32-010(B) No 600 Once per permit See Table Below See Table Below 0.4 c cle City of Durham North Durham WRF Durham NC0023841 Yes 4,212 Once per permit See Table Below See Table Below 0.2 cycle City of Durham Lick Creek W WTP Durham NC0026310 Yes 1,600 Annually See Table Below See Table Below 0.2 City of Durham South Durham WRF Durham NC0047597 Yes 3,580 Once per permit See Table Below See Table Below 0.2 cycle Total 10,892 1. Maximum Dry Tons per Year is the amount of residuals approved for land application from each permitted facility. 2. Analyses to demonstrate that residuals are non -hazardous (i.e., TCLP, ignitability, reactivity, and corrosivity) as stipulated under permit Condition IV.2. 3. Testing of metals and nutrients as stipulated under permit Condition IV.3. 4. Analyses of pathogen and vector attraction reductions as stipulated under permit Condition IV A. 5. Monitoring frequencies are based on the actual dry tons applied per year using the table below, unless specified above. Dry Tons Generated short tons per ear Monitoring Frequency Established in 40 CFR 503 and 15A NCAC 02T .1111 <319 1 [Year <1,650 1/ Quarter 4 times 2er year =>1,650 - <16,500 1/60 Days 6 times per year —>I6,500 ]/month 12 times per year 6. Class A Water Treatment Plant residuals are exempt from meeting the vector attraction reduction requirements in Condition IVA., provided they are not mixed with residuals that have been generated during the treatment of domestic wastewater, the treatment of animal processing wastewater, or the biological treatment of industrial wastewater. The Class A Water Treatment Plant residuals most be treated and processed in a manner as to not meet the definition of `Biological Residuals" as defined in 15A NCAC 02T . t 102(6). If no land application events occur during a required sampling period (e.g. no land application occur during an entire year when annual monitoring is required), then no sampling data is required during the period of inactivity. The annual report shall include an explanation for missing sampling data. Those required to submit the annual report to EPA may be required to make up the missed sampling, contact the EPA for additional information and clarification. WQ0003504 Version 3.1 Attachment A Page 1 of 1