Loading...
HomeMy WebLinkAbout5703_ROSCANS_2001Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.:(828)349-2100, Fax:(828)349-2185 November 13, 2001 James E. Patterson Waste Management Specialist DENR Solid Waste Section 852 Merrimon Avenue Asheville, NC 28804 RE: Facility Compliance Audit Report Macon County MSW Landfill Dear Mr. Patterson, This is a follow-up to a letter I sent to you October 8, 2001 regarding a Facility Compliance Audit Report at the MSW landfill dated August 31, 2001. The previous letter listed the actions we had taken to correct the violations noted in your report and a progress report on two items that had not been completed at that time. We have now completed work related to those violations and I have listed them below. Item (3) of your report stated that we were in violation due to insufficient ground cover to prevent erosion. We have now completed the hydroseeding of the temporary cap over sub -cells 1 & 2, and portions of Phase I cell where there was no grass. In addition to the normal mixture of lime, fertilize, and seed mix, we added winter rye grass seed. Hopefully, this will offer erosion control through the winter, and we will re -seed next year if necessary. My original letter stated that we were going to add compost to the nutrient poor soil over the Phase I cell where grass will not grow. In reference to a letter from Ted Lyons stating that the compost had not been approved for application, we are stockpiling the compost until we receive analysis results of the compost and approval from the state. I would like to note that at the time of the inspection, Mr. Lyons stated that the compost could be utilized at the landfill without analysis. This is why we moved the compost off of the compost pad, and why I stated in my original letter that we would be spreading it on the landfill. Item (4) stated that we were in violation due to water being impounded over waste on the Phase I cell. Water was being retained along impoundments originally intended to carry the water to drainage ditches. As the landfill has settled, these impoundments have lost their slopes and thus, are holding water. We have now re -positioned the berms and the collection pipes so as to create fall along the impoundments. This should conclude the work necessary to correct all of the violations in your August 2001 Facility Compliance Audit Report. If you have any additional questions or requirements, please contact me at your convenience to discuss. Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.:(828)349-2100, Fax:(828)349-2185 Sincerely, Michael Chris Stahl Macon County Solid Waste Superintendent cc.: Brent Rockett A Y4 9-1 NCDENR North Carolina Department of Environment and Natural Resources Michael F. Easley, Governor William G. Ross Jr., Secretary DIVISION OF WASTE MANAGEMENT SOLID WASTE SECTION October 10, 2001 Mr. Chris Stahl Macon County Solid Waste Department 109 Sierra Drive Franklin, NC 28734 RE: Compliance Inspection(s) at Macon County Solid Waste Compost and Yard Waste Facilities Macon County, Permit No. 57-03, Facility Dear Mr. Stahl: I conducted compliance inspections at the Macon County Solid Waste Compost and Yard Waste facilities on September 25, 2001, as a follow-up to violations noted on inspections conducted by Ted Lyon and myself on August 21, 2001. I have also received your letter dated September 21, 2001, addressing those deficiencies requiring a written response. Based on my site visit and the information supplied in your letter, the Solid Waste Section has determined that deficiencies noted in my August 31, 2001 letter to Macon County have been addressed/corrected. Thank you for your prompt attention to this matter. Sincerely, James E. Patterson Waste Management Specialist JEP:sb cc: Larry Lackey Brent Rockett Phil Prete 852 Merrimon Avenue, Asheville, North Carolina 28804 Telephone 828-251-6784 Fax 828-251-6770 Internet: www.enr.state.nc.us/ENR/ An Equal Opportunity / Affirmative Action Employer - 50 % Recycled 110 % Post Consumer Paper Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.: (828)349-2100, Fax: (828)349-2185 October 8, 2001 James E. Patterson Waste Management Specialist DENR Solid Waste Section 852 Merrimon Avenue Asheville, NC 28804 RE: Facility Compliance Audit Report Macon County MSW Landfill Dear Mr. Patterson, This letter and attachments are in response to violations noted in a Facility Compliance Audit Report dated August 31, 2001. Our effort to bring all compliance issues is still ongoing, but we have completed some of the administrative issues listed in your audit and are submitting this response to address those violations. Item (1) of the report states that we were in violation by not having 6inches of daily cover. At the time of your inspection, we were in the early stages of adding a temporary cap to sub -cells 1 and 2. The traffic from hauling dirt onto this area had uncovered a lot of garbage. We have now almost completed the capping of the cell with 12inches of dirt. We intend to have this area capped and seeded before October 19th. I have also re- emphasized the importance of daily cover to all of my operators. Item (2) states that we are in violation of quarterly methane monitoring requirement. We did not monitor during the 2nd quarter due to lack of proper monitoring equipment. We did have a gas monitor, but I did not feel that it was suitable for methane probe monitoring. Additionally, we did not have any calibration equipment for the monitor and I did not feel that any measurements taken with the device could be considered accurate. Subsequently, Macon County has obtained a CES-LANDTEC GEM 2000 methane monitor and calibration kit. John Chase, Altamont Environmental, and myself took landfill gas measurements in September. I will sample the gas probes at least quarterly with the new monitor beginning with the fourth quarter of this year. Item (3) of the report states that we are in violation due to insufficient ground cover to prevent erosion. We have hydroseeded the areas around the compost pad where recent grading was done to prevent leachate from the pad from entering our sediment basin (Ref. audit report letter sent to your office September 25, 2001). As mentioned above, we have almost completed the grading and seeding of the temporary cap on sub -cells 1 and 2. The Phase I cell still has a lot of bare spots due to fill dirt that is nutrient poor. We have taken our mature compost to the old cell and intend to spread it over the area. We will then hydroseed the cell. This work may be delayed due to problems that will be addressed by item (4) of your audit report. We are rapidly running out of time to seed Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.: (828)349-2100, Fax: (828)349-2185 this fall, but we will make every effort complete the work and seed so as to prevent erosion this winter. We will re -seed in the spring if it proves necessary. Item (4) states that we are violation due to water being impounded over waste on the Phase I cell. This problem has been created due to settling of the cell. The berms that were constructed to divert rainwater into above ground drain lines have lost their slope and settled so that a portion of the rainwater cannot reach the drain lines. Due to manpower constraints, we have not begun any corrective actions on this site, but we have developed a plan of action. Since we cannot cut into the cap, we intend to reshape the berms so that they turn down the slope on each face. We will then reposition the drain lines to collect water from the ditches once again. We may also have to add some fill dirt to the central area of the cell to insure that the water will run off the cell. Work will begin on this project as soon as the capping and seeding of Phase II sub -cells are completed. Items (5), (6), and (7) all relate to the inclusion of additional solid waste facilities at the landfill to our facility site plan and operational plan. I have attached a site plan containing the new facilities along with a master list of the facilities. This attachment has been sent to Jim Coffey in the Raleigh office for approval. The yard waste treatment and processing area and the changes to the compost area have already been to the state for approval (Ref. audit report letter sent to your office September 25, 2001). There were four items addressed in the comments/suggestions portion of your report. Item (1) is in reference to the new landfill gas probes (GP-6, GP-7, and GP-8). Altamont Environmental sent a letter to Mark Poindexter on September 7, 2001 stating that the new wells have been installed and added to our monitoring plan (letter attached). We intend to abandon GP-1 and GP-2 as the letter also recommends as the new probes were placed between the old probes (GP-1 and GP-2) and the property line. The monitoring well records referenced in item (2) have been returned to Macon County by Altamont Environmental and have been re -filed. I have discussed with all of my operators the necessity of daily waste screenings (Item (4)). I believe that a combination of new personnel and taking waste both in the baler and the landfill during our progression into the new cell (Sub -cell 3) lead to the missed screenings. If you have any additional questions or concerns regarding our progress on this audit report or the items we have yet to address, please contact me at your convenience. Thank you. Michael C. Stahl Macon County Solid Waste Superintendent rovkod 6/2910 / UNIT TYPE check all: that apply to this audit Lined CDLF Transfer HHW MRF Incin COUNTY: Macon MSWLF PERMIT OR RECORD NO.: 57-03 Closed Tire FIRM SLAS YW Compost X MSWLF Monofill FILE TYPE: COMPLIANCE LCID TireT&P/ SDTF T&P MWP Industrial Collection Landfill STATUS OF PERMIT: Active FACILITY COMPLIANCE AUDIT REPORT Date of Inspection: 09/25/01 Date of Report: 10/11/01 Date of Last Inspection: 08/21/01 . FACILITY NAME AND ADDRESS: Macon County Solid Waste Compost Facility State Road 1324 Franklin, NC 28734 FACILITY CONTACT NAME AND PHONE NUMBER: Chris Stahl Telephone: 828-349-2100 FACILITY CONTACT ADDRESS (IF DIFFERENT): Chris Stahl Macon County Solid Waste Department 109 Sierra Drive Franklin, NC 28734 AUDIT PARTICIPANTS: Jim Patterson, N.C. Solid Waste Section Chris Stahl, Macon County Solid Waste Department PURPOSE OF AUDIT: Compliance inspection for deficiencies specified in my August 31, 2001 letter to Macon County. VIOLATIONS NOTED (citation and explanation): None (All violations have been corrected.) COMMENTS /SUGGESTIONS: The items relating to the yard waste area have been addressed. Please ntact1me if ave any questions or concerns regarding this inspection report. G !�C (signature) Phone: 828-251-6784 J es E. Patterson, Regional Representative Delivered on b -/lam 0 /date) by _hand de ivery _X_ US Mail e-mail _Other(specify) NCDENR NORTH CARou" DEPARTMENT OF ENVIRONMENT ANO NATURAL RESOURCES Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.: (828)349-2100, Fax: (828)349-2185 September 21, 2001 Mr. James E. Patterson Waste Management Specialist DENR Solid Waste Section 852 Merrimon Avenue Asheville, NC 28804 RE: Compliance Report Compost and Yard Waste Inspection Macon County MSW Landfill Dear Mr. Patterson: The following letter and attachments are in response to a audit performed by Ted Lyon and yourself to the compost and yard waste treatment and processing areas of the Macon County MSW Landfill; Permit No. 57-03. Under the section of your letter titled Compost Area, there were eleven problems/ deficiencies noted. Items (1) and (2) are addressed in the attached letter to Ed Mussler. The letter to Mr. Mussler seeks plan approval (item (2)) for the steps that we took to prevent leachate leaving the compost pad from reaching the sediment basin. Among these, and in addition to what had been done at the time of your visit, was the addition of culvert to the drainage ditch running parallel to the compost pad (item (1)). The ditch was then filled and sloped toward the compost pad to prevent leachate from running off of the pad and into the ditch. There was also an embankment added above the ditch line so that storm -water run-off would be diverted away from the compost pad (site plan attached). Items (3), (4), (5), (6), (7), (10), and (11) all reference a deficiency in daily maintenance of the compost pad. Of major concern during the inspection was a storage area for the large volume of tomatoes received prior to their incorporation to the windrows. The sawdust pile that was bunkered to temporarily hold the tomatoes was running off of the pad, as was liquid from the decomposing tomatoes. This area has been cleared, and incorporated into windrows. The mature compost that was being stored along the same edge of the compost has been removed and stockpiled on the Phase I, Cell I to be spread over the poor soil areas of the cell where grass has not grown. In regards to other deficiencies noted, we conducted a meeting at the site to instruct the operators working the compost area on the importance of properly maintaining the area with respect to the techniques and the amount of time required to keep the area in compliance. Additionally, we are seeking to add a part-time position specifically to maintain the compost pad. We are also trying to repair or replace the bobcat that was being utilized to maintain the compost material and feed stock. State of North Carolina Department of Environment and Natural Resources Asheville Regional Office Michael F. Easley, Governor William G. Ross Jr., Secretary March 19, 2001 Mr. Larry Lackey, Director Macon County Solid Waste Dept. 109 Sierra Drive Franklin, North Carolina 28734 4 • • NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RE: Management of Yard Waste at Macon County MSW Landfill Permit #57-03 Dear Mr. Lackey: This letter is being written to reiterate the discussion we had at your office on February 22, 2001 concerning the management of yard waste at the Macon County MSW Landfill. As we discussed, Macon County must obtain a permit for the management of yard waste. This activity can be permitted as a treatment and processing facility if temperatures of the processed material remain below 110°F. If temperatures of the processed material exceed 110°F, a permit for a solid waste compost facility must be obtained. Please submit or have your consultant submit the appropriate application for your yard waste management facility to Ted Lyon in our Raleigh Central office as soon as possible. Please let me know if there are any questions. Sincerely, James E. Patterson Waste Management Specialist cc: Brent Rockett Phil Prete Jim Cothy Ted Lyon 852 Merrimon Avenue, Asheville North Carolina 28804 Telephone 828-251-6784 FAX 828-251-6770 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper i NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES Division of Solid Waste Management Solid Waste Section SOLID WASTE MANAGEMENT FACILITY EVALUATION REPORT Type of Facility. ` t i f?, . I ;,:. 1%; • Permit County Name of Facility. Location Date of Last Evaluation I. Permit Conditions Followed Yes No N/A A. Specific Condition(s) Violated II. Operational Requirements Followed Yes No 15A N.C. Admin. Code 138 Section A. Specific Violation(s) by number and letter. ut III. other Violations of Rule or Law IV. Evaluator's Comments V. Continivation Page Required? Yes No Receiving Signature Evaluation Date Solid Waste Section DEHNR 3793 (Part I White: Facility Part II Canary: Central Office Part III Pink: Regional Office) Solid Waste Section (Review 7/94) RECORD OF ❑ PHONE CALL ❑ DISCUSSION FIELD TRIP ❑ CONFERENCE COMMUNICATION ❑ OTHER (SPECIFY) (Record of item checked above) TO: , FROM: DATE 200 1' 2 5' TIME - 1prLle- SUBIECI Asir p IA%WN W. �-1 IDVI LL ISOL 0 wmrg bepr on /- FJ,- 7.6oI SUMMARY OF COMMUNICATION ,'r' t/1 S I IVID 'rl?W, MP66AI Cotwry LAM07I4"AMD SDL/A VlhV - Vop r- W Z $'v 1 , Oe- TURpb5 c 44:7 JV V/S jr W45 7V T XXV * VCJ6(,V/N(a t-WO /LL PnW fas b'I'A kl'ri.A VD� k / M/�wN CU/ry *q4p Whsrr 01fwetolz A4) pm ee-r w/;w �p .4y� � ��IuPG/tom 1-IrtIVR IAA ,'O#AiF pAAy tV ,8l.*WS3 Irlihl /Ve• A#CA:+i"y AAD Y7wp1)wx1,e/rV6® MXW �°• ��,.�6-o0zn/.c/�/an 1�OL6�E�+S„� ,D b ,� ,0 W'17� CvAwusr ew� ®h A ds y � GSI &05 A04-4 /'NP4)/ ucJ etP® cH/ o���xrr®6 Vlo lr�vs AAWEO AW My )9Zvl&5 rWp'i. V 4AAPNr3CO 7,V,9-.,VA;;M 7U IrAD ,4AV AND X M Cr %MITH MR• A gcXjr[ p A#V J?VAO orl W6 CO3ya#*1A1l TEE /?0L"-#p76N';r VV '�1-/9�A ! i S//76 /ijZ�. -fin- v ► "d wo- . M, 7 � ".""' cw RCG.r�i't•� �p �ls 9xnnc�I-- iV�c#-% 7'6lP6,liW/rcvrAVAYr6AW4 &aCS -"fV A*D 'P' 6 tU Wd 1, W6 ,�,tr,,►, �,i3 M'C/9 11'l%l /Jt1A �u I � .`' y -�-� t tx,ulc9 hrsVe, I 0 fix- 0,0,kt2, 6-jp r k.,0ktq A 4-Dip 1`' 19 rcvl� ?)u, ,flrwl�i►�, '�� `P PAD NCA" 6 P �.a �, sue► h r a Sc� C > ��•f , . fi (.�;lt o a'' -�►-t) [Ott ��!►i� id Jrzu� CONCLUSIONS, ACTION TAKEN OR REQUIRED INFORMATION COPIES TO: -rtlo_ ",V". EPA Form 1300 6 (7-72) M 4 G'Pi ❑ PHONE CALL ❑ DISCUSSION) FIELD TRIP ❑ CONFERENCE RECORD OF COMMUNICATION ❑ OTHER (SPECIFY) (Record of item checked above) TO: FROM: DATE TIME -PrVt� SUBJECT a 1Yle,��4� �/1✓1 �-arr� lac-�c�' few �u� 5u�ic� r are � oas s V10i Wtlor5 PurrV-0biv atit "D 07PIO2- 53ac-s SUMMARY OF COMMUNICATION V Kl s / rP-0 rM5 /Vf,#BUY► CixwI y U LS D Wh M DOM UAI c /4b)z#1Al, 10— 01 - - �c. V('Mun w-s 4z+ L *),Ll L Ir4uC-ZJ*q S hyp b j a�suss s �'� c. V l,#fins how I* Ile, J-a�f#/ f. r4 ?-� �'1.e- ���4tou COUvr• 6 W /-Zrac -It bh, 12 -u- W, clt3w,55;-,G I lt4 ,s rczw-,4,r /U popcu.m-1k relwm"e -h otp f M"o �2�ra �It I $v b b su"w * / kly'r r tY,Qihs #44, A;v ' � Gvc- LVAO �} .�, cr�rvs�" �� )ft✓rcu 1 c�rsus�x-8 rc. -1���� � S�Iw�S''`'�"- fJ''tP4M; ' �-a"rV) rr 01A606AE-CO-, ->' 5 VM5 615GG&4,9 Cl(AiW� 4U15 V151 ivWY +tl- V MWJ lug Vwa-- - to v - lip 5 )�4& p !j r-'9 - )t hvd fowl h� m w At, kf5 rr r�l;.v ' runt ft vl% Y144t. 0� I5 5LW- W 1-4 h hjov)� l nU.tx �w l 1: ML9 Att."Al Vel p- [ z 5 'r DL-' Y Wt';-E9 50t, P 1 -z,,. 5 6LO P ri 4U, I-)r .PY � QN-9- i1ou,�,t gpYou�� i- � hncm o 1�T�►� Lu-t�C7) CONCLUSIONS, ACTION TAKEN OR REQUIRED INFORMATION COPIES TO: I EPA Form 1300-6 (7-72) Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.: (828)349-2100, Fax: (828)349-2185 October 12, 2001 Mr. James Coffey North Carolina Division of Waste Management Solid Waste Section 401 Oberlin Road Raleigh, North Carolina 27605 RE: Addition of Waste Handling Facilities to Site Plan Macon County MSW Landfill Permit #57-03 Dear Mr. Coffey, Please find the enclosed facility site plan and list of waste handling and recycling facilities to be added to our operational plan. The site plan is a duplicate of one sent to your office September 25, 2001 seeking approval of our yard waste treatment and processing facility. We are now seeking approval of the additional facilities contained on the site plan and listed on the attached sheet. There are two additional structures added to the site plan that are not part of the solid waste department. They are a transit services facility and garage/maintenance facility. Both structures lie in the buffer area on the western corner of the landfill property. If you have any questions or require additional information about any of the facilities in this submittal, please contact me at your convenience. Thank you. rr / n Michael Chris Stahl ' Macon County Solid Waste Superintendent cc.: Jim Patterson Macon County Department of Solid Wa-._e Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph. (828)349-2100, Fax: (828)349-2185 October 12, 2001 The following is a list of additional solid waste handling facilities submitted for plan approval and located on attached site plan • Household waste collection center -Waste Compactor -Recyclables Collection Trailer -Used Oil Recycling Container -Battery Collection Area -Antifreeze Collection Container -Construction and Demolition Drop-off Dumpsters • Scrap Tire Recycling Storage Trailers • Refrigerant Removal and Storage Area • Scrap Metal Storage Pad • Pallet Storage Area • Recycling Facility Addition • Remodeled Environmental Education Center • Propane Tank at Baling Facility Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.:(828)349-2100,Fax:(828)349-2185 October 24, 2001 Mr. Edward F. Mussler III, P.E. Environmental Engineer DENR Solid Waste Section 401 Oberlin Road Raleigh, North Carolina 27605 Re: Modification of Fill Progression Macon County MSW Landfill Dear Mr. Mussler; This letter is in response to our phone conversation of October 23, 2001. The following is an explanation of a change in the fill progression of our operating plan. At present, we have filled Phase II, sub -cells 1 and 2 to ground level and placed a temporary cap on both to shed water away from the landfill. We are also in the process of hydroseeding the two sub -cells. We have built a road into sub -cells 3 and 4 entering from the northwest edge of the landfill adjacent to the slope from the filled sub -cells 1 and 2. The road progresses down into sub -cells 3 and 4 along the toe of the slope. Each sub -cell is further divided so as to open small sections at a time and leave as much of the storm water liner in place as possible. We are currently placing waste in sub -cell 3 in the area closest to sub -cell 1 and the new road mentioned above. We have added waste almost half way up to ground level. Rather than continue to fill this section, we would like to move over into sub -cell 4 in an area adjacent to our current fill and closest to sub - cell 2. We will bring that section of sub -cell 4 up half way to ground level adding temporary berms as we have in sub -cell 3 to divert rainwater around the fill area and toward the rainwater pumps. We will then progress into the lower half of sub -cell 4 and then the lower half of sub -cell 3 in a counter -clockwise progression. The reason for this order of progression is that the lower section of sub -cell three is the lowest point in the landfill, and thusly the area where our rainwater pumps are located. Once all four sections of sub -cells 3 and 4 are brought to the same level. We will begin filling both sub -cells in lifts from the northern edge of the landfill back toward sub -cells 1 and 2. The purpose of this change is to prevent us from having to construct so many slopes inside the landfill, which causes us to add much more dirt than should be necessary to cover the waste. Further, in filling sub -cells 1 and 2 in the fashion described in our operational plan, we were often left with narrow strips to fill with 20-foot slopes on either side. A rain event would then impound 2 feet or more water at our working face. Bringing each section up half way will allow us to control our leachate but then will leave us a large flat area to disperse the rainwater as we bring additional lifts across sub -cells 3 and 4. Macon County Department of Solid Waste Management 109 Sierra Drive, Franklin, North Carolina 28734, Ph.:(828)349-2100,Fax:(828)349-2185 Thank you for your attention in this matter. If you have any additional questions or concerns with the modification of our fill progression, please contact me at your convenience. Sincerely, Michael Chris Stahl Macon County Solid Waste Superintendent cc.: Jim Patterson, NCDENR Brent Rockett, NCDENR Jeff Bishop, McGill and Associates ALTAMONT ENVIRONMENTAL, INC. ENGINEERING, HYDROGEOLOGY, RISK MANAGEMENT 78'/2 PATTON AVE., ASHEVILLE, NC 28801 TEL.828.281.3350 FAc.828.281.3351 September 7, 2001 www.altamontenvironmental.com Mr. Mark Poindexter NC DENR Solid Waste Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Subject: Municipal Solid Waste Landfill (Permit #57-03) Landfill Gas Update Dear Mr. Poindexter: This letter provides current information regarding landfill gas at the Municipal Solid Waste (MSW) landfill located in Macon County, North Carolina. BACKGROUND Macon County (County) operates a MSW landfill approximately north of the Town of Franklin, North Carolina. The general location of the facility is shown on Figure 1. As part of routine operations, landfill gas is measured on a quarterly basis in five landfill gas probes situated near the perimeter of the landfill. The probe locations are shown in Figure 2. During measurements taken during the spring of 2001, the concentrations of methane measured in gas probes GP -I and GP-2 exceeded the limits allowable under North Carolina Department of Environment and Natural Resources (DENR) Solid Waste Section regulations. On May 2, 2001 the County requested that Altamont Environmental, Inc. (Altamont) assist with an evaluation of landfill gas in the vicinity of GP-1 and GP-2. FINDINGS Altamont directly completed, or participated in the completion of five tasks as part of this evaluation. A description of each task follows: Task 1: Evaluate Landfill Gas Concentrations On May 2, 2001 an Altamont environmental technician accompanied Macon County Solid Waste Department personnel and Mr. Jim Patterson (DENR) during an assessment of landfill gas conditions on the west side of Cell No. 1 at the MSW landfill. Solid Waste Department personnel estimated the location of the property line in the area. Based on that preliminary determination, two prospective gas probe locations were evaluated using a steel bar and landfill gas meter. The evaluation consisted of driving the steel bar into the subsurface to a depth of approximately four feet and measuring the concentration of landfill gas in the resulting void. The two locations, which are shown on Figure 2 as GP- 6 and GP-7, were shown to be beyond the area affected by landfill gas. Mr. Mark Poindexter September 7, 2001 Page 2 of 3 Task 2: Deed Research Historic records in the Solid Waste Department indicated that the parcel west of Cell No. 1 is owned by the County. The County retained Sprinkle Surveying to verify this information through research of the pertinent deeds. Sprinkle found that the parcel is actually owned by the Town of Franklin. As a result, the preliminary location established for GP-7 (during Jim Patterson's onsite inspection) was moved upslope onto County -owned property. The area established as the proposed location for GP-6 was determined by Sprinkle to be County -owned property. Task 3: Land Survey The County also retained Sprinkle Surveying to survey the westerly property line between the Town of Franklin and the County, as well as the new gas probe locations. The surveyors staked the property line on 100-foot centers. Its location, with respect to the recently installed gas probes, is indicated in Figure 2. Task 4: Installation of New Landfill Gas Probes On June 13, 2001 the Altamont environmental technician installed gas probes at each of the two locations (GP-6 and GP-7) identified in Task 1. Oil August 3, 2001 an additional probe was installed (GP-8). A Landfill Gas Probe Construction Diagram is attached that represents all three structures. Task S: Continued Landfill Gas Monitoring GP-6 replacing GP-1: Gas probe GP-6 was installed on June 13, 2001. Methane was not detectable in the probe after completion. On July 2, 2001 the methane concentration at GP-6 was checked again. On that occasion the concentration exceeded five percent. The methane concentration in this probe was 1.6- percent on August 3, 2001. These and other landfill gas measurements are compiled in Table 1. GP-7 & GP-8 replacing GP-2: Gas probe GP-7 was installed on June 13, 2001. A methane measurement was recorded upon completion of the probe. As shown, in Table 1, the methane concentration in GP-7 exceeded five percent on June 13, 2001. Subsequently, the measurement of methane at that probe was 1.7-percent on July 2, 2001 and 1.1-percent on August 3, 2001. As a precautionary measure however, GP-8 was installed between the property line and GP-7, and near a property line marker. As shown in Table 1, the methane concentration in GP-8 on August 3, 2001 was 0.3-percent. CONCLUSIONS Gas probes GP -I and GP-2 have been replaced and should be abandoned by filling them with grout. As replacements, gas probes GP-6, GP-7, and GP-8 will be included in the routine quarterly monitoring program. Although methane in GP-6 has been observed at a concentration greater than five percent on one occasion, at least 250-feet remain between that probe and the Lake Emory property line. If methane continues to be detected in GP-6 in excess of the five -percent limit, then an additional probe can be installed closer to the property line to demonstrate compliance with DENR regulations. Mr. Mark Poindexter September 7, 2001 Page 3 of 3 Gas probe GP-8 is located within two feet of the property line. Further monitoring will determine whether a compliance issue exists in that area. From the perspective of health and safety however, at least 100-feet separate this location and the nearest structure or periodic human activity. Mr. Poindexter, if you have any questions or comments, please contact me at (828) 281-3350. Thank you for your assistance with this project. Sincerely, Im McElduff, P.E. Enclosures: Table I - Landfill Gas Measurements Figure 1 - Site Location Map Figure 2 - Landfill Gas Probe Locations Map Figure 3 - Landfill Gas Probe Construction Diagram cc: Larry Lackey/Macon County Chris Stahl/Macon County c� � o U Cad o C� � it p +, a V � o Ct U a cc .......... ..................... v1 10 ON c� 00 o >:>`> ` >' XX .. ..:...... a w 0 C 0 ::>::::>::::>::::;::>::::>::::>::::;::....:>::;: U cl m '«>»< H H <:::>::::>::::>:<<:::>::::::>::::>: w w o 0 0 �, •o 0szo � o. � U U 0 0 0 0 0 s,tj o 0 ... 0 d 3 C, 0 ................................................ zQ ('. N N r�,.�, N PIER tizo 00 80- 11 13 Mile" ,DAM 4�R C 41 - H 6 A 2 -Y' 0 00 As -�j (--ZVW M�K3 W I '•.1 l/ yi JA ��`C4/� j' /i J ,I ti r-`V ,� QO\�i\ 07-2, SITE LOCATION Vo 12 a(p v 2200 1 xx r ind' j k N; V 5p T 'fp F 4,) X Frank(in �6 A.S1 31 (?V FIGURE I Altamont SITE LOCATION MAP MACON COUNTY MSWLF Environmental, Inc. MACON COUNTY, NORTH CAROLINA ENGINEERING, W-DGEDLOGY, RISK MANAGEMENT CORBIN KNOB & FRANKLIN, NORTH CAROLINA 78Y2 PATTON AVENUE 7.5 MINUTE USGS QUADRANGLE DRAW. JOHN A ASHEVILLE, NORTH CAROLINA PROJECTBY: MANAGER:CHJ'MSE NI MCELDurr COUOUR INTERVAL: 40 IT GRAPHIC SCALE CLIENT: MACON COUNTY MAP DATE: 1946 0 500 IDDO 2000 PHONE B28-281-3350 DATE: 08-29-01 FILE: AVL/H:/PROJECTS/UACON CO/WSW/fICURE 11 PHOTO REVISION: 1978 IN FEET 1-INCH DIAMETER PVC PIPE BGS MEANS BELOW GROUND SURFACE Altamont FIGURE 3 LANDFILL GAS PROBE CONSTRUCTION DIAGRAM (GP-6 THROUGH GP-8) Environmental, Inc. MACON COUNTY MSW LANDFILL ENGINEERING, HYIAGECLOGY. RISK MANAGEMENT MACON COUNTY, NORTH C A R O L I N A 78Y2 PATTON AVENUE ASHEVILLE, NORTH CAROLINA DRAWN BY: JOHN CHASE PHONE 828-281-3350 PROJECT MANAGER: MCELDNO SCALE CLIENT: MACON COUNTY DATE: OATC: 06-29-01 TILE: AVL/H:/PROJECTS/MACON/MSW/CAS PROBE DIAGRAM GP-4 / \ v11ST lrol / •\ GP-8 •�. / on FILLED PHASE 1. CELL I WASTE MEN EXISTING � LINER El T o 0 / \ -0\� 0GP-6 LINE I 0 n 0 n I 0 oe OPERATION L WASTE AR A BALING FACILITY