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Home My WebLink About20102644.tiff 2400 West Union Avenue Englewood, CO 80110 303-914-1445(Phone) WASTE MANAGEMENT 303-914- d Emmy Planning Department GREELEY OFFICE October 25, 2010 nr.T 78 9ntn Ms. Marley Shoaf RECEIVED Colorado Department of Public Health and Environment Air Pollution Control Division APCD-SS-B1 4300 Cherry Creek Drive South HAND DELIVERY Denver, CO 80246-1530 SUBJECT: NORTH WELD LANDFILL (NWLF) TITLE V OPERATING PERMIT#97OPWE181 2010 SEMI-ANNUAL MONITORING REPORTS Dear Ms. Shoat In accordance with the NWSL Title V Operating Permit # 97OPWE181, attached are the following reports covering the monitoring period of April 1, 2010—September 30, 2010. • Monitoring and Permit Deviation Reports, Part I • Monitoring and Permit Deviation Reports, Part II • Monitoring and Permit Deviation Reports, Part III These reports reflect a minor deviation in the permit reporting requirements during this reporting period. The first semi-annual 2010 monitoring reports and 2010 annual compliance certification report were due on May 1, 2010 but were submitted to CDPHE and EPA on August 26, 2010. The facility had assumed that the certifications provided in the facility Title V Operating Permit Renewal Application, which was submitted to CDPHE on April 28, 2010, fulfilled the other reporting requirements. Although the Title V application addressed certain requirements of the semi-annual and annual reports, the facility subsequently determined that it did not cover all aspects of these reports; immediately whereupon the subject 2010 reports were submitted by the facility to the appropriate agencies. Should you have any questions regarding these reports, please contact Tom Schweitzer at (303) 914-1445 or Bill Hedberg at (970) 686-2800 ext. 23. Sincerely, Tom Schweitzer Engineering Manager /attachments cc: Dana Podell, CDPHE APCD, w/enc. Jim King, CDPHE APCD, w/enc. Douglas Ikenberry, CDPHE, w/enc. Troy Swain, WCDPHE, w/enc. Kim Ogle, WCDPS, w/o enc. 00-Th ,wfx //- 3-00/0 2010-2644 PLO 881 Air Pollution Control Division Colorado Operating Permit Monitoring and Permit Deviation Report — Part I 1. Following is the required format for the Monitoring and Permit Deviation report to be submitted to the Division on a semi-annual basis unless otherwise noted in the permit. The Table below must be completed for all equipment or processes for which specific Operating Permit terms exist. 2. Part II of the Appendix B shows the format and information the Division will require for describing periods of monitoring and permit deviations, or upset or emergency conditions as indicated in the Table below. One Part II Form must be completed for each Deviation. Previously submitted reports (e.g. EERs or Upsets) may be referenced and the form need not be filled out in its entirety. FACILITY NAME: Waste Management Disposal Services of Colorado, Inc.-North Weld Sanitary Landfill OPERATING PERMIT NO: 97OPWEP181 REPORTING PERIOD: 4/01/10 -9/30/10 (see first page of the permit for specific reporting period and dates) Upset/Emergency Operating Permit Unit Unit Description Deviations noted Deviation Code2 Condition Reported ID During Period?' During Period? YES NO YES NO E01 Landfill Gas Generation X X E02 Fugitive Particulate X X Emissions General Conditions X 7 X Insignificant Activities X X I See previous discussion regarding what is considered to be a deviation. Determination of whether or not a deviation has occurred shall be based on a reasonable inquiry using readily available information. 2 Use the following entries, as appropriate 1 = Standard: When the requirement is an emission limit or standard 2= Process: When the requirement is a production/process limit 3= Monitor: When the requirement is monitoring 4= Test: When the requirement is testing 5= Maintenance: When required maintenance is not performed 6= Record: When the requirement is recordkeeping 7= Report: When the requirement is reporting 8= CAM: A situation in which an excursion or exceedance as defined in 40CFR Part 64 (the Compliance Assurance Monitoring(CAM)Rule)has occurred. 9= Other: When the deviation is not covered by any of the above categories C:\Air\N WLF\NWLF MPDR 2H20I0.doc Air Pollution Control Division Colorado Operating Permit Monitoring and Permit Deviation Report — Part II FACILITY NAME: Waste Management Disposal Services of Colorado, Inc. -North Weld Sanitary Landfill OPERATING PERMIT NO: 97OPWEP181 REPORTING PERIOD: 04/01/10-09/30/10 (see first page of the permit for specific reporting period and dates) Is the deviation being claimed as an: Emergency Upset N/A X (For NSPS/MACT)Did the deviation occur during: Startup Shutdown Malfunction Normal Operation X OPERATING PERMIT UNIT IDENTIFICATION: Operating Permit Condition Number Citation Section I V—General Conditions—Condition 22d Explanation of Period of Deviation (7)A minor reporting deviation occurred during this reporting period.The first semi-annual 2010 monitoring reports and 2010 annual compliance certification report were due on May 1,2010 but were submitted to CDPHE and EPA on August 26, 2010. The facility had assumed that the certifications provided in the facility Title V Operating Permit Renewal Application,which was submitted to CDPHE on April 28,2010,fulfilled the other reporting requirements. Although the Title V application addressed certain requirements of the semi-annual and annual reports,the facility subsequently determined that it did not cover all aspects of these reports; immediately whereupon the subject 2010 reports were submitted by the facility to the appropriate agencies. Duration(start/stop date&time) N/A Administrative only Action Taken to Correct the Problem The 2010 semi-annual and annual reports were submitted immediately following the facility's determination that the Title V Operating Permit Renewal Application did not supplant the requirement to submit the semi-annual and annual reports. Measures Taken to Prevent a Reoccurrence of the Problem The facility has closely reviewed the Title V reporting requirements and developed compliance tasks to ensure all future reports are submitted as required. Dates of Upsets/Emergencies Reported(if applicable) Deviation Code Division Code QA: Q\Air\NWLFW WLF MPDR 2H2010.doc Air Pollution Control Division Colorado Operating Permit Monitoring and Permit Deviation Report — Part III SOURCE NAME: Waste Management Disposal Services of Colorado, Inc. -North Weld Sanitary Landfill FACILITY IDENTIFICATION NUMBER: 1230209 PERMIT NUMBER: 97OPWEP181 REPORTING PERIOD: 4/01/10-09/30/10 (see first page of permit for specific reporting period and dates) All information for the Title V Semi-Annual Deviation Reports must be certified by a responsible official. The responsible official signing this certification must be pre-approved by the Division in accordance with Colorado Regulation No. 3, Part A, Section I.B.38. This signed certification document must be packaged with the documents being submitted. STATEMENT OF COMPLETENESS I have reviewed the information being submitted in its entirety and, based on information and belief formed after reasonable inquiry; I certify that the statements and information contained in this submittal are true, accurate and complete. Please note that the Colorado Statues state that any person who knowingly, as defined in Sub- Section 18-1-501(6), C.R.S., makes false material statement, representation, or certification in this document is guilty of a misdemeanor and may be punished in accordance with the provisions of Sub-Section 25-7 122.1, C.R.S. Scott Bradley Colorado/Utah Area Vice President Printed or Typed Name Title t3 - ZZ Signature of Responsible fficial Date Signed Note: Deviation reports shall be submitted to the Division at the address given in Appendix D of this permit. No copies need be sent to the U.S. EPA. C:\Air\NWLFW WLF MPDR 2H2010.doc 4 2400 West Union Avenue Englewood,CO 80110 WWI 303-914-1445(Phone) WASTE MANAGEMENT 866-442-0285(Fax) Weld County Planning Department GREELEY OFFICE OCT 25 ?nip October21, 2010 RECEIVED Mr. Jerry Henderson G Colorado Department of Public Health and Environment Hazardous Materials and Waste Management Division HMWMD-SWIM-B2 4300 Cherry Creek Drive South Denver, CO 80246-1530 Mr. Troy Swain Weld County Department of Public Health and Environment 1555 N. 17th Avenue Greeley, CO 80631 SUBJECT: NORTH WELD LANDFILL THIRD QUARTER 2010 GAS MONITORING REPORT Dear Mr. Henderson and Mr. Swain: Enclosed for your information is the Third Quarter 2010 Gas Monitoring Report for North Weld Landfill (NWLF). The report dated September 20, 2010 was prepared by AquAeTer and documents their field monitoring activities conducted on September 16, 2010. The gas monitoring report contains monitoring results from the Phase 1 and 2 perimeter soil gas probes GP-06, GP-07, GP-10 through GP-20, structure probes GP-01 and GP-02, inside the shop and office, and confined spaces in the vicinity of the western boundary of the site. A map showing the gas probe locations, the scale house and maintenance shop is included as Figure 1. Section 2.3.1 of the Regulations Pertaining to Solid Waste Sites and Facilities, 6 CCR 1007-2, Part 1 (Regulations) requires that the concentration of explosive gases shall not exceed (A) 25% of the lower explosive limit (LEL) (1% by volume in air for methane) within facility structures, and (B) the LEL (5% by volume in air for methane - i.e., percent methane) at the facility boundary. During this monitoring event, methane was detected in structure probe GP-01 at a concentration of 19.2%. Combustible gas above regulatory limits was not detected in any of the other probes, shop, office or confined spaces. Probes registering the presence of combustible gas, but below regulatory limits, are perimeter probe BP-10 with a concentration of 2.8% and perimeter probe GP- 17 with a concentration of 0.4%. The facility is currently operating under an approved gas remediation plan prepared in response to elevated gas concentrations in structure probe GP-01 and perimeter probes GP-10 and GP-11. The plan includes monthly monitoring of these probes and utility corridor access points along WCR J Letter Jerry Henderson and Troy Swain October 21, 2010 Page 2 25. Included in Attachment 1 are the July and August 2010 monthly reports. A summary of the test results for these monthly events is provided in the following table. CH4 Concentration Monitoring Probe July 2010 August 2010 GP-01 27.5 26.8 GP-10 9.2 13.6 GP-11 0.0 0.7 Methane was not observed in the utility corridor access points or facility structures during the monthly monitoring. • The approved remediation plan also included the installation of passive gas vents in waste along the western limit of the disposal area. As stated in the plan, the passive vents, which were installed in December 2009, may require one or more years to show consistent reduction in methane concentrations at perimeter probes GP-10 and GP-11 and structure probe GP-01. Until methane concentrations are below the regulatory threshold for three consecutive monthly events, monthly monitoring will continue to be performed. Continuous methane monitors are in operation within the facility maintenance building, office and gatehouse and no methane detections have been observed. If you have any questions regarding this report, please contact me at (303) 914-1445. Sincerely, On behalf of North Weld Landfill Tom Schweitzer Engineering Manager cc: Kim Ogle, WCDPS, w/o enc. Bill Hedberg, NWLF Hello