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NC0037508_Pretreatment Inspection_20110725
AVA NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary July 25, 2011 Janna Scherer Pretreatment Coordinator/Lab Supervisor 1094 Addor Road Aberdeen, NC 28315 SUBJECT: Pretreatment Compliance Inspection (PCI) Moore County Water Pollution Control Plant NPDES Permit No. NC0037508 Moore County Dear Ms. Scherer: Enclosed you will find a copy of the Pretreatment Compliance Inspection Report for the July 21, 2011 inspection of the pretreatment records and files. The report indicates that Moore County Water Pollution Control Plant meets the pretreatment requirements as outlined in 15A NCAC 2H .0900. We appreciate your co-operation and your continued efforts with the pretreatment program. Your excellent record keeping and your organization of the Pretreatment files were outstanding. Please keep up the good work with your pretreatment program. If you have any questions concerning this report, please do not hesitate to contact me at (910) 433-3312. incerely, ta 90 Dale Lopez Environmental Specia Enclosures: Pretreatment Compliance Inspection Report EPA Water Compliance Inspection Report Moore NOV letter that was sent to Thermal Metals Thermal Metals response letter to the NOV Thermal Metals In -House Analysis of Tank #1 Thermal Metals In -House Analysis of Tank #2 cc: PERCS - Pretreatment Unit (Monti Hassan) FRO- files-(Dale-Lopez)-,i) 225 Green St, Suite 714, Fayetteville, NC 28301-5043 Phone: 910-433-33001 FAX: 910-486-07071 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal opportunity i Affirmative Action Employer One. NorthCarohna ��XtlCi' ZiIy NORTH CAROLINA DIVISION OF WATER QUALITY PRETREATMENT COMPLIANCE INSPECTION (PCI) REPORT BACKGROUND INFORMATION (Complete Prior To PCI; Review Program Info Database Sheet(s)1 1. Control Authority (POTW) Name: Moore County WPCP 2. Control Authority Representative(s): Janna Scherer 3. Title(s): Chemist/PT Coordinator/FOG Coordinator 4. Last Inspection Date: _08/10/2010 Inspection Type (Check One): ❑ PCI ® Audit 5. Has Program Completed All Requirements from the Previous Inspection and Program Info Sheet(s)? © YES ❑ NO 6. Is POTW under an Order That Includes Pretreatment Conditions? ❑ Y ES Z NO Order Type, Number, Parameters: Are Milestone Dates Being Met? ❑ YES ❑ NO PCS CODING Trans.Code Main Program Permit Number N I C 101013171510181 MM/DD/YY 107I211111 Inspec.Type Inspector Fac. Type DTIA) (TYPI) (INSP) (FACC 7. Current Number Of Significant Industrial Users (SIUs)? 3 SIUS 8. Current Number Of Categorical Industrial Users (CIUs)? 3 CIUS 9. Number of SIUs Not Inspected By POTW in the Last Calendar Year? 0 10. Number of SIUs Not Sampled By POTW in the Last Calendar Year? 0 11. Enter the Higher Number of 9 or 10 0 NOIN 12. Number of SIUs With No IUP, or With an Expired IUP 0 NOCM 13. Number of SIUs in SNC for Either Reporting or Limits Violations During Either of the Last 2 Semi -Annual Periods (Total Number of SIUs in SNC) 0 PSNC 14. Number of SIUs in SNC For Reporting During Either of the Last 2 Semi -Annual Periods 0 MSNC 15. Number of SIUs In SNC For Limits Violations During Either of the Last 2 Semi -Annual Periods 0 SNPS 16. Number of SIUs In SNC For Both Reporting and Limits Violations During Either of the Last 2 Semi-annual Periods 0 POTW INTERVIEW 17. Since the Last PCI, has the POTW had any NPDES Limits Violations? If Yes, What are the Parameters and How are these Problems Being Addressed? In September 2010, the Whole Effluent Toxicity resulted in a "Fail". The reason for the "Fail" was not identified. The following two months (October and November) resulted in 100% and 57.98%. 18. Since the Last PCI, has the POTW had any Problems Related to an Industrial Discharge (Interference, Pass -Through, Blockage, Citizens' Complaints, Increased Sludge Production, Etc.)? If Yes, How are these Problems Being Addressed? 19. Which Industries have been in SNC for Limits or Reporting during either of the Last 2 Semi -Annual Periods? Not Been Published for Public Notice?(May refer to PAR if Excessive SIUs in SNC) SNC for SNC for Not Pul 20. Which Industries are on Compliance Schedules or Orders? For all SIUs on an Order, Has a Signed Copy of the Order been sent to the Division? 21. Are Any Permits Or Civil Penalties Currently Under Adjudication? If Yes, Which Ones? YES NO ❑ YES 0 NO Limits: 0 Reporting: 0 lished: 0 0 ❑ YES a NO LTMP/STMP FILE REVIEW: 22. Is LTMP/STMP Monitoring Being Conducted at Appropriate Locations and Frequencies? ® Y ES ❑ NO 23. Are Correct Detection Levels being used for all LTMP/STMP Monitoring? E YES ❑ NO 24. Is LTMP/STMP Data Maintained in a Table or Equivalent? © YES ❑ NO Is Table Adequate? ❑ YES ❑ NO 25. All LTMP/STMP effluent data reported on Discharge Monitoring Report? ® YES ❑ NO DWQ Inspector, please verify yourself! 26. if NO to 23 - 26, list violations 27. Should any Pollutants of Concern be Eliminated from or Added to LTMP/STMP? ❑YES ® NO NC DWQ Pretreatment Compliance Inspection (PCI) Form Updated 7/25/07 Page 1 • 28. PRETREATMENT PROGRAM ELEMENTS REVIEW,— Please review POTW files, verify POTW has copy of Program Element in their tiles. complete Fvith supporting documents and copv of PERCS Approval Letter. and dates consistent \+pith Pro�"ram Info: Program Element Last Submittal Date In file? Last Approval Date In file Date Next Due, If Applicable Headworks Analysis (HWA) 11/08/10 E/ Yes ❑ No 02/22/11 Yes ❑ No 11/01/15 Industrial Waste Survey (IWS) 08/22/08 ►/ Yes ❑ No 11/05/08 /ZI Yes ❑ No 09/01/13 Sewer Use Ordinance (SUO) 05/31/07 la Yes ❑ No 10/16/07 ►ZI Yes ❑ No Enforcement Response Plan (ERP) 10/30/08 1 Yes ❑ No 11/19/08 IZI Yes ❑ No Long Term Monitoring Plan (LTMP) 06/24/04 1 Yes ❑ No 07/13/04 /1 Yes ❑ No INDUSTRIAL USER PERMIT (IUP) FILE REVIEW (3 IUP FILE REVIEWS OR 1 FILE REVIEW AND 1 IU INSPECTION 29. User Name 1. Erico 2. Pinnacle 3. Thermal Metals 30. IUP Number A005 A007 A008 31. Does File Contain Current Permit? /'1 Yes, Issued 06/09/08 Yes Issued 03/01/10 N Yes Issued 03/01/10 32. Permit Expiration Date 06/30/13 06/30/15 06/30/15 33. Categorical Standard Applied (I.E. 40 CFR, Etc.) Or N/A 433 433 433 34. Does File Contain Permit Application Completed Within One Year Prior to Permit Issue Date? /1 Yes ❑ No 12/20/07 ►I1 Yes ❑ No 12/15/09 11 Yes ❑ No 12/24/09 35. Does File Contain an Inspection Completed Within Last Calendar Year? '1 Yes 09/08/10 ►1 Yes 08/01/10 ►I1 Yes 09/20/10 36. a. Does the File Contain a Slug/Spill Control Plan? b. If No, is One Needed? (See Inspection Form from POTW) a. Yes ■No 10/19/10 a. ►i Yes ■No 12/18/09 a. LYes ■No 01/15/09 37. For 40 CFR 413 and 433 TTO Certification, Does File Contain a Toxic Organic Management Plan (TOMP)? ®Yes❑No❑N/A 06/30/11 ®Yes❑No❑N/A 05/05/2009 ®Yes❑No❑N/A 06/28/11 38. a. Does File Contain Original Permit Review Letter from the Division? b. All Issues Resolved? a. CI Yes ■No b.❑Yes❑No❑N/A a. Yes ■No b.❑Yes❑No❑N/A a. 0Yes No b.❑Yes ❑No❑N/A 39. During the Most Recent Semi -Annual Period, Did the POTW Complete its Sampling as Required by IUP, including flow? /1 Yes ❑ No 11 Yes ❑ No ►1 Yes ❑ No 40. Does File Contain POTW Sampling Chain -Of -Custody Forms? Yes ❑ No /11 Yes ❑ No Yes ❑ No 41. During the Most Recent Semi -Annual Period, Did the SIU Complete its Sampling as Required by IUP, including flow? ®Yes❑No❑N/A ®Yes❑No❑N/A ®Yes❑No❑N/A 41 b. During the Most Recent Semi -Annual Period. Did SIU submit all reports on time? ®Yes❑No❑N/A ®Yes❑No❑N/A ElYes❑No❑N/A 42a. For categorical lUs with Combined Wastestream Formula (CWF), does file include process/dilution flows as Required by IUP? ❑Yes❑NoEIN/A ❑Yes❑No®N/A ❑Yes❑NolZN/A 42b. For categorical lUs with Production based limits. does file include production rates and/or tlows as Required by IUP? ❑Yes❑No®N/A ❑Yes❑NoON/A ❑Yes❑No®N/A 43a. During the Most Recent Semi -Annual Period, Did the POTW Identify All Limits Non -Compliance from Both POTW and SIU Sampling? /1 Yes ❑ No 11 Yes ❑ No Yes ❑ No No violations No violations Zn in Mar 2011 43b. During the Most Recent Semi -Annual Period, Did the POTW Identify All Reporting Non -Compliance from SIU Sampling? ❑Yes❑No 0N/A ❑Yes❑NoHN/A No violatons ❑Yes❑No®N/A No violations 44. a. Was the POTW Notified by SIU (Within 24 Hours) of All Self- Monitoring Violations? b. Did Industry Resample and submit results to POTW Within 30 Days? c. If applicable, Did POTW resarnple within 30 clays of becoming aware of SIU limit violations in the POTW's sampling of the SIU? ` a.❑Yes❑No®N/A b.❑Yes❑No®N/A c.❑Yes❑No®N/A a.❑Yes ❑No®N/A b.❑Yes❑No®N/A c.❑Yes❑No®N/A a.®Yes❑No❑N/A b.®Yes❑No❑N/A c.❑Yes❑No®N/A 46. During the Most Recent Semi -Annual Period, Was the SIU in SNC? ❑ Yes ►1 No ❑ Yes /11 No ❑ Yes ►Z1 No 47. During the Most Recent Semi -Annual Period, Was Enforcement Taken as Specified in the POTW's ERP (NOVs. Penalties, timing, etc.)? ❑Yes❑NoON/A ❑Yes❑NoEIN/A ®Yes❑No❑N/A See File Review Comment #5 (below) 48. Does the File Contain Penalty Assessment Notices? ❑Yes❑NotEN/A ❑Yes❑No®N/A ❑Yes❑No®N/A 49. Does The File Contain Proof Of Penalty Collection? ❑Yes❑No®N/A ❑Yes❑No®N/A ❑Yes❑No®N/A NC DWQ Pretreatment Compliance Inspection (PCI) Form Upda ed 7125/07 Page 2 50. a. Does the File Contain Any Current Enforcement Orders? b. Is SIU in Compliance with Order? 51. Did the POTW Representative Have Difficulty in Obtaining Any of This Requested Information For You? a. ❑ Yes ❑No®N/A b.❑Yes ❑No®N/A a. ❑ Yes ❑No o N/A b.❑Yes❑No®N/A a. ❑Yes❑No®N/A b.❑Yes❑Noe N/A ❑ Yes i4 No ❑ Yes /5 No ❑ Yes ►4 No FILE REVIEW COMMENTS: 1. Meritech performed all of the LTMP detection levels at the low levels that were required by the LTMP. 2. On July 1, 2011, the POTW and two of it's CIUs (Pinnacle IUP# A007 and Thermal Metals IUP# A008) switched from Meritech to Research Analytical Labs (in Kernersville, NC). Erico (IUP# A005) continued to use MicroBac. 3. George Yankay is the new POTW Superintendent (and ORC), and Rex Downs is the lead WWTP operator. 4. Wharton -Smith has been awarded the contract on the POTW's upgrades. 5. (See #47, above) The only CIU limit occurred on March 10, 2011 for Zinc. Please see the attached POTW NOV that was sent to Thermal Metal Treating, Inc. and the response letter from the CIU. The list of the dates and the events are as indicated by the following chart. Month & Test Parameter Date that the SIU Self- Monitoring results were due (IUP says due by 15ih) Date that the SIU Self- Monitoring or POTW results were REC'D by the POTW (IUP says due by 15t) Date that SIU notified POTW of limits violations Date that SIU resample was due at the POTW Date that SIU resample results were actually received by the POTW Date that POTWsentan NOV to SIU Date that the response from the SIU was due Date that the response was actually REC'D Response Adequate? Mar 2011 04/07/11 04/07/11 04/07/11 The SIU 05/05/11 04/13/11 05/13/11 05/03/11, Zinc Routinely samples every month Yes NC DWQ Pretreatment Compliance Inspection (PCI) Form Updated 7/25/07 Page 3 NO INDUSTRY INSPECTION PERFORMED DURING THIS PRETREATMENT COMPLIANCE INSPECTIONI INDUSTRY INSPECTION PCS CODING: Trans. Code Main Program Permit Number LI`Ll 1 1 I L I 1 I I I 1. Industry Inspected: 2. Industry Address: MM/DD/YY Inspec.Type Inspector Fac. Type I 1 1 I[ J S► J 21 (DTIA) (TYPI) (1NSP) (FACC) 3. Type of Industry/Product: 4. Industry Contact: Phone: Fax: Title: 5. Does the POTW Use the Division Model Inspection Form or Equivalent? ❑ YES ❑ NO 6. Did the POTW Contact Conduct the Following Parts of the Industrial Inspection Thoroughly? Comments: A. Initial Interview ❑ YES ❑ NO B. Plant Tour ❑ YES ❑ NO C. Pretreatment Tour ❑ YES ❑ NO D. Sampling Review ❑ YES ❑ NO E. Exit Interview ❑ Y ES ❑ NO Industrial Inspection Comments: OVERALL SUMMARY AND COMMENTS: Comments: We appreciate your co-operation and Your continued efforts with the pretreatment program. Your excellent record keeping and your organization of the Pretreatment files were outstanding. Please keep up the good work with your pretreatment program. Requirements: None Recommendations: Please keep up the good work. NOD: ❑ YES 4 NO NOV: ❑ YES ►I NO QNCR: ❑ YES NO POTW Rating: Satisfactory Ma PCI COMPLETED BY: Dale Lopez nal Un isfactory DATE: July 25, 2011 REVIEWED BY: Belinda Henson 7g€14;y4 ) • `J DATE: 1 — 2 1O - 11 NC DWQ Pretreatment Compliance Inspection (PCI) Form Updated 7/25/07 Page 4 United States Environmental Protection Agency EPA. Washington, D.C. 20460 Water Compliance Inspection Report Form' Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection 1 I NI 2 15I 31 N00037508 111 121 11/07/21. 117 Type Inspector Fac Type 18I PI 19I sI 20I I Remarks 211111111111111111111I1111111111111111I11111111116� Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA 67I 2.0 169 70I 51 711 I 721 N I Reserved----------- I 1 I 1 1 I 1 80 731 1 174 761 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Moore County WPCF 1094 Addor Rd Aberdeen NC 28315 Entry Time/Date 10:30 AM 11/07/21 Permit Effective Date 10/12/01 Exit Time/Date 02:00 PM 11/07/21 Permit Expiration Date 14/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Rex A Downs/ORC/910-436-2836/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Dennis L Brobst,PO Box 1927 Carthage NC 283271927/Public OtilitiesContacted Director/910-281-3146/9102812047 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Pretreatment Section D: Summary of Findinq/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date 7 AS://Aeil Dale Lopez N FRO WQ//910-433-3300 Ext.712/ Ualt dr `4.,) Signature of Mana ement Q A Reviewer Agency/Office/Phone and Fax Numbers Date • 1/D, (/11 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES yr/mo/day Inspection Type 31 NC0037508 I11 12I 11/07/21 117 18IP1 (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) FILE REVIEW COMMENTS: 1. Meritech performed all of the LTMP detection levels at the low levels that were required by the LTMP. 2. On July 1, 2011, the POTW and two of it's CIUs (Pinnacle IUP# A007 and Thermal Metals IUP# A008) switched from Meritech to Research Analytical Labs (in Kernersville, NC). Erico (IUP# A005) continued to use MicroBac. 3. George Yankay is the new POTW Superintendent (and ORC), and Rex Downs is the lead WWTP operator. 4. Wharton -Smith has been awarded the contract on the POTW's upgrades. 5. The only CIU limit violation that occurred was on. March 10, 2011, for Zinc. Please see the attached POTW NOV that was sent to Thermal Metal Treating, Inc. Please also see the response letter from the CIU. The report indicates that Moore County Water Pollution Control Plant meets the pretreatment requirements as outlined in 15A NCAC 2H .0900. We appreciate your co-operation and your continued efforts with the pretreatment program. Your excellent record keeping and your organization of the Pretreatment files were outstanding. Please keep up the good work with your pretreatment program. Page # 2 Public WorIs "Water ToCCution Control Plant Io94 W t71r Road liercfeen, _NC 28315 County of .mil o ore April 13, 2011 Jerry Ritter Thermal Metal Treating, Inc 9546 Hwy 211E PO Box 367 Aberdeen, NC 28315 Subject: NOTICE OF VIOLATION Permit No. A008 Dear Mr. Ritter: Q1o) 281-3146- Tfione 'ta -(9lo) 281-2047- Fax COPY A review of Thermal Metal's monitoring data for March 2011 showed the following violation(s): Parameter Date Limit Value Reported Value From Industry Reported Value From PO W- Limit Type Zinc 3/10/11 2.61 mg/1 21.7 rnor Daily Maximum Exceeded Zinc 3/10/11 1.48 mg/1 21.7 mg/1 Monthly Average Exceeded Remedial actions must be taken to correct the problem. The Moore County Water Pollution Control Plant may pursue enforcement action for this and any additional violations in accordance with the Enforcement Response Plan. Per Section 8.1 of the Moore County Sewer Use Ordinance, Thermal Metal Treating shall respond in writing within thirty (30) days as to the cause of these violations and what corrective actions will be taken to prevent future violations. If you have any questions, please contact me at 910-281-3146. Sincerely, anna Scherer, County of Moore, Pretreatment Coordinator Cc: Mr. George Yankay, County of Moore, Superintendent . :I Mr. Dennis Brobst, County of Moore, Public Works Director A9443 Your gateway to innovative metal processing technology ISO 9002 9546 HWY 211 EAST - ABERDEEN, NC 28315 PC) 89X 367 - ABERDEEN, NC 213315 P: 910 - 944 -3636 F: 910 -944 -3280 www.thprrnplmgtal.com May 3, 2011 Janna Scherer County of Moore Pretreatment Coordinator Dear Janna, n c1r_,ncaC-3n rr*r! ._ 'till { In response to the Notice of Violation - Permit No. A008, you sent Thermal Metal Treating, Inc. — TMT. I am sending you this letter of explanation of the violation and remedial action taken to prevent any further occurrence. In April our outside laboratory for treated waste water quality testing, Meritech, Inc. of Reidsville, NC was sent our normal monthly test sample. Their test indicated a zinc reading 21.7 mg/I which far exceeded the maximum reporting limit and any zinc reading we had ever recorded internally. TMT's normal sampling procedure for all treated waste water is as follows: Using a calibrated Hach 2010 spectrophotometer, tests are made and recorded for copper, nickel, and zinc metals before the waste water treatment and following treatments to verify compliance before any discharge to the municipal system is performed. TMT's internal records indicate no reading have ever reached the levels reported by Meritech on the subject batch lot, ,before or .after treatment. - See typical TMT recorded readings on the attached internal records for March 2011. In reviewing the steps leading up to the treatment of the batch of waste water that the Meritech sample was taken from, nothing out of the ordinary was found in the type of product processed during the production cycle that generated this waste water. No changes in the chemicals or methods of treatment were used that may have led to an inordinately high zinc level. There is no assignable cause that could be established for the extremely high zinc readings based on the history or treatment of this batch lot. Remedial action by TMT includes: e All samples from now on, taken from our treated waste stream, will have a duplicate sample taken in approved containers. One will be submitted to Meritech or another certified laboratory and the other stored in a dedicated refrigerator at TMT, until records of compliance are received by TMT. This will allow for an additional test sample to be .checked if the original sample results find any questionable readings. l`i ERM L AL - FIEF-`Gi'. EGG, GNr. . 9546 HWY 211 EAST - ABERDEEN, NC 28315 A9443 Your gateway to innovative metal processing technology ISO 9002 Po BOX 367 - A_BERDEE.N, NC 28315 P; 910 - 944 -3636 F: 910 - 944 -3280 www.thermalmetaLcon • Although nothing indicated the TMT spectrophotometer registered a false reading for the subject zinc sample, they will move from a quarterly calibration test to a monthly one. • Meritech Lab. picked up the subject sample on March 3, 2011 and we didn't receive the results_ until March 28, 2011. We are requesting Meritech report readings in a timelier manner to allow for the duplicate sample to be tested before the calendar month expires. Thermal metal treating, cannot pin point or prove a fault attributable to this occurrence either internally or with Meritech's results and therefore must leave this with only being able to reinforce our current system with some redundancy and higher level of calibrations to .catch a future instance of insufficient flocking or bad test procedures from our testing vendor. Best regards, Jerry Ritter President / Metallurgist THERMA1` ETAL TREATING INC. 9546 HWY k EAST ABERDEEN, NC. 28315 PH: 910.944.3636 FAX: 910.944.3260 WASTEWATER TREA :NT DAILY LOG IN-HOUSE ANALYSIS TANK#1 DATE LOADED AMOUNT PRIOR TREATMENT LAB ANALYSIS LOADED PH COPPER NICKEL ZINK 3/2/2011 540 12.30 0.89 0.45 0.55 3/7/2011 540 11.90 1.037 0.96 0.82 3/10/2011 3/15/2011 540 9.90 0.89 0.88 0.45 3/16/2011 3/28/2011 540 5.30 0.67 0.77 0.34 3/29/2011 Monthly Tot. 2160 Yearly Tot. 2180 Monthly Av. , 720 Weekly Aver. 180 PREPARED BY: TITLE: ORC M.N. DISCHARGED AFTER TREATMENT LAB ANALYSIS % REMOVAL DATE AMOUNT PH COPPER NICKEL ZINK -COPPER NICKEL ZINK 3/3/2011 540 6.7 0.42 0.099 0.066 47% 35% 48% 3/10/2011 540 6.8 0.507 0.067 0.77 53% 89% 5% 3/16/2011 540 6.77 0.17 0.21 0.0073 72% 67% - 44% 3/29/2011 540 7.1 0.11 0.08.1 0.002 56% 69% 34% Monthly Tot. 2160 Yearly Tot. 2160 Monthly Av. 720 Weekly Aver. 180 MARCH l v l 1 PH METER CALIBRATION DATE INITIALS 3/3/2011 M.N. 3/10/2011 M.N. 3/16/2011 M.N. 3/29/2011 M.N. P.1 THERMAL METAL TREATING INC. 9546 HWY 211 EAST ABERDEEN, NC. 28315 PH: 910.944.3636 FAX: 910.944.3280 WASTEWATER TREATMENT DAILY LOG IN-HOUSE ANALYSIS TANK#Z M.N. DATE LOADED AMOUNT LOADED PRIOR TREATMENT LAB ANALYSIS DISCHARGED AFTER TREATMENT LAB ANALYSIS % REMOVAL PH METER CALIBRATION PH COPPER NICKEL ZINK DATE AMOUNT PH COPPER NICKEL ZINK COPPER NICKEL ZINK DATE INITIALS 3/1/2011 540 12.00 0.99 0.87 0.45 3/2/2011 3/2/2011 540 6.5 0.07 0.03 0.008 9.1 7.3 2.0 3/2/2011 M.N. 3/3/2011 3/4/2011 3/5/2011 3/6/2011 3/7/2011 3/8/2011 3/9/2011 3/10/2011 3/11/2011 540 9.50 0.67 0.55 0.23 3/12/2011 3/13/2011 3/14/2011 3/14/2011 540 0.28 0.1 0.009 0.003 3.8 3.0 0.5 3/14/2011 M.N. 3/15/2011 3/16/2011 3/17/2011 • 3/18/2011 . 3/19/2011 3/20/2011 540 11.20 0.77 0.55 0.42 3/21/2011 3/21/2011 540 6.8 0.023 0.044 0.0022 5.8 2.8 1.8 3/21/2011 M.N. 3/22/2011 540 11.40 0.95 0.73 0.79 3/23/2011 3/23/2011 540 6.5 0.077 0.069 0.0034 8.3 4.8 6.2 3/23/2011 M.N. 3/24/2011 540 11.60 0.85 0.59 0.12 3/25/2011 . 3/26/2011 • 3/27/2011 3/28/2011 3/28/2011 540 6.7 0.013 0.0045 0.004 7.1 3.5 0.1 3/28/2011 M.N. 3/29/2011 . 3/30/2011 3/31/2011 Monthly Tot. 2700 - Monthly Tot. 2700 Yearly Tot. 2700 Yearly Tot. 2700 Monthly Av. 900 Monthly Av. 900 Weekly Aver. 225 Weekly Aver. 225 TITLE: ORC