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Home My WebLink AboutWQ0001271_Correction_20100412r North Carolina Beverly Eaves Perdue Governor ylrlvj �CQ NK Department of Environment and Division of Water Quality Coleen H. Sullins Director April 12, 2010 Natural Resources MR. KENNETH L. VOGT, JR., WASTEWATER TREATMENT SUPERINTENDENT CAPE FEAR UTILITY AUTHORITY 2311 NORTH 23R0 STREET WILMINGTON, NC 28403 Dear Mr. Vogt: Dee Freeman Secretary Subject: Correction to Attachment A Certification Permit No. W00001271 Cape Fear Public Utility Authority CFPUA Residuals Land Application Program Land Application of Residual Solids (503) New Hanover County It has been brought to our attention that Attachment A of existing Permit No. W00001271, issued March 26, 2010, contains errors. We are herewith forwarding the corrected Attachment A. The following corrections have been made to Attachment A: 1. Footnote "a" has been modified to correctly explain the sequence of transferring and dewatering residuals from the various facilities. 2. The table and footnote "b" have been modified to indicate the sampling frequencies for residuals taken from the Walnut Hills WWTP facility. Please replace Attachment A with the corrected Attachment A into Permit No. W00001271, issued March 26, 2010. If you have any questions regarding this request, please contact David Goodrich by telephone at (919) 715-6162 or via e-mail at david.goodrich@ncdenr.gov. Sincerely, or Coleen H. Sullins cc: New Hanover County Health Department Wilmington Regional Office -Aquifer Protection Section APS Central Files LAU File AQUIFER PROTECTION SECTION 1636 Mail Service Center, Raleigh, North Carolina 27699-1636 Location: 2728 CapUal Boulevard. Raleigh. North Carolina 27604 Phone: 919-733-3221 \ FAX 1:919-715-0588; FAX 2: 919-715-60481 Customer Service: 1-877-623-6746 Internet www.numatemualiw.orn M Equal Ornortuniiv % Afirmanve Action Employer North Carolina NatlflY llb( ATTACHMENT A - Approved Residual Source -Generating Facilities Permit Number: WQ0001271 Version: 2.4 Certification Date: I\'larch 26, 2010 ,s. CAPE FEAR PUBLIC UTILITY AUTHORITY — CAPE FEAR PUBLIC UTILITY AUTHORITY LAND APPLICA'T'ION PROGRAM No residuals other than those generated by the following residuals source -generating facilities shall be approved for acceptance for storage or treatment in accordance with this CIl11IG Monitoring Frequency (Established in 40 CFR 503 and 15A N CAC 02T.1111) <319 1/Year =>319 - <1,650 1/ Quarter (4 times per year) =>1,650 - <16,500 1/60 Das 6 tithes per year) Monitoring l /month (12 times per ear) Maximum Frequency for Approved Owner Facility Name County Permit Number Issued By Is 7 503. Dry Tons 'Monitoring Frequency for Condition Ill. 3. Mineralization per Year Condition I11.2. and Condition Rate 111.4. Cape Fear Public Utility Authority Northside WWTP New Hanover NCO023965 DWQ 503 See footnote a See footnote a See footnote a .20 Cape Fear Public Utility Authority Southside WWTP New Hanover NCO023973 DWQ 503 7,300 Annually Every 60 days .20 Cape Fear Public Utility Authority Sweeny WTP New Hanover NCO002879 DWQ Non- 503 See footnote a See footnote a See footnote a .20 Cape Fear Public Utility Authority Walnut Hills WWTP New Hanover NCO039527 DWQ 503 See footnote b Once per permit See footnote b .20 Total 71300 For Dr) Ing iced. Filter Press or other solid residuals: 'The Sweeny WTP liquid residuals are transported to the Northside WWTP and are dewatered. The Northside WWTP liquid residuals are dewatered at the Northside WWTP where they are generated. The Sweeny WTP dewatered residuals and Northside WWTP dewatered residuals are then transported to the Southside WWTP. The Southside ww,rP liquid residuals are dewatered at tlie Southside WWTP where they are generated. The dewatered residuals from the Sweeny WTP, the Northside WWTP, and the Southside WWTP are then blended at the Southside WWTP and stored at the Southside WWTP storage pad prior to land application. Only the dewatered residuals from the Southside WWTP residuals storage pad may be land applied. Composite samples from the mixed, dewatered residuals are collected for monitoring for Conditions 111.2. and 111.3. Monitoring fior Condition 111.4. is conducted at the source facilities, Northside WWTP and Southside WWTP. Monitoring for Condition 111.4. is not required for residuals at the Sweeny WTP. h The residuals at the Walnut Hills WWTP will be monitored at the facility far Condition 111.4. (pathogen reduction and vector attraction reduc(ion) in accordance with the amount of residuals produced, as listed in the table below. If the residuals fail to pass either of these tests or are not tested as described here, they will be processed at the Northside Wastewater Treatment Plant by being hauled to the NSWWTP and being mixed with the existing residuals at the plant to undergo anaerobic digestion. If the residuals pass both tests, they shall be hauled to the dewatering process feed tank at the Northside Wastewater Treatment Plant for dewatering, then blended for normal production at the storage pad of the Southside Wastewater Treatment Plant. Only the dewatered residuals from the Southside WWTP residuals storage pad inay be land applied. Composite samples from the mixed, dewatered residuals are collected for monitoring for Conditions 111.2. and 111.3. Ninnitnrino Frequency Reauirements Dry Tons Generated (short tons per year) Monitoring Frequency (Established in 40 CFR 503 and 15A N CAC 02T.1111) <319 1/Year =>319 - <1,650 1/ Quarter (4 times per year) =>1,650 - <16,500 1/60 Das 6 tithes per year) =>16,500 l /month (12 times per ear) WQ0001271 Version 2.4 Shell Version 071105 . Page 1 of 1