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HomeMy WebLinkAbout8801_ROSCANS_1991::Zcusta a division of P. H. GLATFELTER CO. P.O. BOX 200 • PISGAH FOREST, NORTH CAROLINA 28768 • TELEPHONE (704) 877-2211 Mr. Gary Ahlberg Division of Solid Waste Management North Carolina Department of Environment, Health and Natural Resources P.O. Box 27687 Raleigh, North Carolina 27611-7687 Dear Gary: September 5, 1991 Subject: Draft Permit -Ecusta Ash Landfill I appreciate this opportunity to comment on the latest draft of the proposed permit for the Brown No. 2 ash landfill. This draft contains a new operating requirement in paragraph 4 of "Monitoring and Reporting Requirements." This paragraph requires that we report annually on the amount of waste (by weight) disposed of at this landfill, which is compiled on a monthly basis. A copy of this report must be sent to the Solid Waste Section in Raleigh and to Transylvania County. The Brown No. 2 ash landfill is a monofill used only for the disposal of coal ash generated at our facility in Pisgah Forest. It receives no other material. We do not weigh our trucks of ash going to this landfill. We do, though, calculate how much ash is disposed of in this landfill on a monthly basis. Currently, we are required by the North Carolina Division of Environmental Management to monitor the ash content of all coal burned at Pisgah Forest. The sampling and analysis of such coal meets current DEM and ASTM guidelines. The resultant values are used by the State of North Carolina to determine our air quality permit fees and for inclusion in EPA's NESHAP system. It is proposed that this calculated number be used instead of weighing of our individual trucks of ash going to this landfill. As pointed out above, one of the requirements of this section is that these reports be sent on an annual basis to Transylvania County. Please advise us in the permit who or what position in Transylvania County needs to receive the report. Currently, we are being advised by Transylvania County that they know nothing about this. Thank you for the opportunity of commenting on this draft permit. As always, I enjoy discussing with you our perennial subject of the Brown Ecusta a division of P. H. GLATFELTER CO. PISGAH FOREST. NORTH CAROLINA 28768 Mr. Gary Ahlberg Division of Solid Waste Management September 5, 1991 Page 2 No. 2 ash landfill. If you have any questions or comments, please call me at 704-877-2347. RJG:mh Copy to: C. N. Carter D. W. Monk Sincereiy, ECUSTA DIVISION P.H. Glatfelter Company ti.~ Environmental Affairs \ ;(;·::::~::~r~, 1,f"r, '\.~· '~~1£t.:.~ hll~~ .,.,., •• ,.111<. , tsstQw.,., ... ~~ \.),,_~ss,.-s>"' State of North Carolina Department of Environment, Health, and Natural Resources Division of Solid Waste Management P.O. Box 27687 · Raleigh, North Carolina 27611-7687 James G. Martin, Governor William W. Cobey, Jr., Secretary Mr. R. J. Gussman, Director Environmental Affairs Ecusta Corporation Pisgah Forest, N. c. 28768 May 8, 1991 William L. Meyer Director Re: Revisions To The Groundwater Monitoring Plan For The Ecusta Ash Landfill (Permit# 88-01) Dear Mr. Gussman, Presently there is no monitoring system that specifically targets the impact of the Ecusta Ash Landfill on the ground water of the area. As we discussed in our telephone conversation this past week, the Solid Waste Section feels at least one additional monitoring well is needed at the ash monofill site. Under typical circumstances at least four ground water monitoring wells are required around each distinct landfill facility. Because of the unique features and layout of the Ecusta facilities, the Section will allow the use of existing monitoring wells at the site (which are located primarily to monitor the impact of the sludge landfill and the aeration stabilization basin) as part of the monitoring system for the ash landfill. However at least one additional monitoring well needs to be installed at the site. Because there are homes and trailers with private drinking water wells to the northwest of the ash landfill, a monitoring well will be required on this side of the site. This well should be installed on the northwest side of the landfill site inside the ditch near the entrance road to the facility, in the approximate location as shown on the attached map. The well should be installed with the screen set so that the seasonal high water table falls just under the top of the screen. A minimum screen length of 10 feet will be required and a screen length of of 15 feet is recommended, if the hydrogeological conditions permit. The well should be designed so that the water table always falls within the screened interval and so that there is always a sufficient amount of water in the well (even under seasonal low water conditions) to allow a representative sample to be taken of the ground water in the upper part of the aquifer. An Equal Opportunity Alllnnative Action Employer Page 2 Well documentation for the existing wells at the site indicate that the two downgradient wells are drilled to a depth of about 17 to 18 feet, with the water table from 2 to 5.5 feet below ground surface elevation. There.are no boring logs for these wells on record in our office, so it is not clear what type of material was encountered in the boring of these wells. Based on this information it is clear that effective monitoring wells can be established in this area. The monitoring system for the ash landfill should also include a sample taken from the outfall from the discharge pipe for the erosion control pond at the base of the ash monofill. The two surface water sampling locations previously approved by our office should also be sampled as part of the monitoring system. In summary, the water quality monitoring system for the Ecusta sludge and ash landfill facilities (Permit# 88-01) will include the three existing monitoring wells, the proposed new monitoring well, the previously approved surface water locations, and a sample from the sediment basin outfall pipe at the ash monofill. The new monitoring well should be installed by July 31, 1991. A complete and accurate Well Completion Record (DHS 3342) should be submitted to the Solid Waste Section within 15 days of well installation. In addition, please submit to us a summary of the hydrogeological data accumulated from the boring operation. Include boring logs and other pertinent subsurface information. After the new well has been installed the Solid Waste Section will make arrangements to visit the site. At that time representatives from the Section well inspect the monitoring system and perform a baseline sampling. After the results of the sampling are reviewed, the Section will make a determination as to the frequency of sampling and the sampling parameters that will be required for future routine detection monitoring. If you have questions or comments please contact this office at (919) 733-0692. cc: Gary Alhberg Jim Patterson Don Link Attachments Sincerely, ~~ Bobby Lutf?"J' Hydrogeologist Solid Waste Section /~4"~ /",•''""'• ~ fr;jf,~~ i~li.; ,"". if s -, . 1,·:' ' ~ -~ ··r, l :-.' 1:· ~ 11'Jinu11I~ • ~,; •1.u,i Qw.M :;;,.v .. ._.._.. State of North Carolina Department of Environment, Health, and Natural Resources Division of Solid Waste Management P.O. Box 27687 · Raleigh, North Carolina 27611-7687 James G. Martin, Governor William W. Cobey, Jr., Secretary Mr. R. J. Gussman, Director Environmental Affairs Ecusta Corporation Pisgah Forest, N. c. 28768 June 11, 1991 William L. Meyer Director Re: The Groundwater Monitoring Plan For The Ecusta Ash Landfill (Permit# 88-01) Dear Mr. Gussman, This letter is written in response to your letter of May 17,1991 regarding monitoring of the Ecusta Ash Landfill. After further review, and discussion with Mr. Don Link, D.E.M. Hydrogeological Supervisor, the Division of Solid Waste Management still feels that at least one additional ground water monitoring well is necessary to detect the effects of the facility on the ground water of the area. Therefore, the Division will ask that the monitoring plan for the Ash Landfill be modified according to the conditions outlined in the May 8, 1991, letter from this office. Both the Division of Environmental Management and the Division of Solid Waste Management agree that it would be best to screen the proposed well above bedrock. The additional boring logs that you submitted with your recent letter give me more confidence that a shallow monitoring well, screened at the water table, can be installed above bedrock. However, if the hydrogeologic conditions make it necessary, the well may have to extend into the rock. The other revisions to the Monitoring Plan, as outlined in the May 8th letter from our office, should be implemented as soon as possible. This includes the installation of the proposed monitoring well by July 31, 1991. If you have any further questions, please contact this office at (919) 733-0692. cc: G9-{y Ahlberg t.dim Patterson Don Link Sincerely, 3d~r ~ Bobby tfu:tfy ~ Hydrogeologist Solid Waste Section An Equal Opportunity Afflnnative Acdon Employer