0225-S1-R5 FW: WM Ozark Ridge Landfill - Proposed/Revised Recirculation Plan-2014

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1 West, Tommi From: Sent: To: Subject: Attachments: Importance: Rec d Digitally Matoska, Maria AFIN: Tuesday, May 27, :17 AM West, Tommi; Leamons, Bryan PMT#: 0225-S1-R5 FW: WM Ozark Ridge Landfill - Proposed/Revised Recirculation Plan-2014 By westt at 12:10 pm, May 27, 2014 Ozark Recirculation Plan-2014.pdf DOC ID#: High TO: MM>File S W M D From: Conrad, David [mailto:dconrad@wm.com] Sent: Tuesday, May 27, :08 AM To: Matoska, Maria Cc: Phillips, David; Jackson, Wendy Subject: WM Ozark Ridge Landfill - Proposed/Revised Recirculation Plan-2014 Importance: High DearMs.Matoska, Perourconversation,attachedisarevisedLeachateRecirculationPlan.Therevisionsarenotedingreen.OzarkRidge Landfillwouldliketoaddanewmethodologytoitsrecirculationplan amistermachine.thistypeofmachinesprays therecirculatedleachateinafinemist,allowingforbetterevaporation.weappreciateyourpromptresponsetothis request/revisioninthatamisterisbeingdeliveredtoday,andwillbedemonstratedforaperiodofapproximately30to 45days. David K. Conrad Engineering Manager - Arkansas Facilities dconrad@wm.com Waste Management 100 Two Pine Drive North Little Rock, AR Tel Cell Waste Management renewable energy projects create enough energy to power more than one million homes. Learn more at 1

2 LEACHATE RECIRCULATION PROGRAM OZARK RIDGE LANDFILL CLASS 1 The Ozark Ridge Landfill includes a facility for the disposal of all waste eligible for a Class 1 sanitary landfill as defined in Regulation 22. The types of waste not authorized for acceptance and disposal include hazardous and/or toxic waste materials, liquid or semi-liquid waste, and Special Materials specifically excluded by the ADEQ. The current permit (Site Specific Condition Number 7) states The primary method of disposing of leachate is recirculation in accordance with the facility s currently Department approved Leachate Recirculation Program. Based on the most recent Department approval of the major permit modification, the permitted limits of the landfill are now 66-acres and encompass all Phases of the landfill (Phases 1, 2, 3 and 4). It is the intent of the facility to conduct leachate recirculation from all current operating, closed and future disposal areas of the landfill. The leachate to be recirculated will be from the collection systems constructed for the landfill and will only be recirculated into compositelined areas of the landfill. Proposed methods for leachate recirculation may include the following: 1. Placement of leachate within the waste mass by means of horizontal trench injection or buried piping system; 2. Placement of leachate within the waste mass by way of temporary open trench injection (maximum of one week and closed by noon on Saturdays); 3. Application of leachate at the active disposal area, leachate storage pond or new cell which does not yet contain waste will be by means of controlled truck, hose spray, mister machine or by automated spray equipment; and 4. Injection of leachate by means of vertical well injection (similar in construction to landfill gas extraction wells). The source of leachate to be recirculated may be directly from any of the leachate sumps, leachate storage pond(s) or new cells that do not contain waste. The method of leachate recirculation will depend on various factors and may change throughout the course of normal landfill activities. These factors may include the amount of leachate to be recirculated, weather and wind conditions, and location of disposal operations in relation to leachate storage facilities and final grades. The following conditions will apply to leachate recirculation activities: 1. Recirculation will be conducted in periods of dry weather when there is no imminent forecast for rain. The only recirculation permitted during wet weather is via the vertical injection wells or by use of the mister over a lined pond or new lined cell (cell will not contain waste during this operation and will be temporary). 2. Recirculation activities will prohibit exposure to any personnel. Landfill equipment will not be allowed to track dirt or mud that has been moistened by leachate. 3. Recirculation will not be allowed in areas of standing water. Recirculation will not be allowed on cover materials (interim cover or final cover areas). Furthermore, recirculated leachate may not be sprayed on outside or exterior slopes of the landfill. 4. Recirculation activities will cease in the area where leachate seeps are observed on exterior slopes of the landfill and redirected to other areas of the landfill where seeps are not present. 5. Leachate shall be tested annually (Toxicity Characteristic Leaching Procedure analysis); the results and volumes of leachate recirculated will be recorded and placed in the site Operating Record. Updated May 27, 2014

3 West, Tommi From: Sent: To: Subject: Attachments: Matoska, Maria Wednesday, May 28, :54 AM Leamons, Bryan; West, Tommi FW: Revised Ozark Ridge Landfill - Leachate Recirculation Program Binder1.pdf Please add to the current task. From: Conrad, David [mailto:dconrad@wm.com] Sent: Wednesday, May 28, :42 AM To: Matoska, Maria Cc: Phillips, David; Jackson, Wendy; Taylor, Jodi; Eatmon, Becky Subject: Revised Ozark Ridge Landfill - Leachate Recirculation Program Dear Ms. Matoska, Per your request, the Ozark Ridge Landfill Leachate Recirculation Program has been modified to address your concern regarding over spray or leachate fallout not dropping onto lined areas of the landfill. Accordingly, Condition #5 was added to address that concern. You will also find a product cut sheet for the Neptune Evaporator. This is a typical mister and is being used during this demonstration project. Other similar misters may be used in the future. Thank you for your prompt review of the request. David K. Conrad Engineering Manager - Arkansas Facilities dconrad@wm.com Waste Management 100 Two Pine Drive North Little Rock, AR Tel Cell Waste Management renewable energy projects create enough energy to power more than one million homes. Learn more at 1

4 LEACHATE RECIRCULATION PROGRAM OZARK RIDGE LANDFILL CLASS 1 The Ozark Ridge Landfill includes a facility for the disposal of all waste eligible for a Class 1 sanitary landfill as defined in Regulation 22. The types of waste not authorized for acceptance and disposal include hazardous and/or toxic waste materials, liquid or semi-liquid waste, and Special Materials specifically excluded by the ADEQ. The current permit (Site Specific Condition Number 7) states The primary method of disposing of leachate is recirculation in accordance with the facility s currently Department approved Leachate Recirculation Program. Based on the most recent Department approval of the major permit modification, the permitted limits of the landfill are now 66-acres and encompass all Phases of the landfill (Phases 1, 2, 3 and 4). It is the intent of the facility to conduct leachate recirculation from all current operating, closed and future disposal areas of the landfill. The leachate to be recirculated will be from the collection systems constructed for the landfill and will only be recirculated into compositelined areas of the landfill. Proposed methods for leachate recirculation may include the following: 1. Placement of leachate within the waste mass by means of horizontal trench injection or buried piping system; 2. Placement of leachate within the waste mass by way of temporary open trench injection (maximum of one week and closed by noon on Saturdays); 3. Application of leachate at the active disposal area, leachate storage pond or new cell which does not yet contain waste will be by means of controlled truck, hose spray, mister machine or by automated spray equipment; and 4. Injection of leachate by means of vertical well injection (similar in construction to landfill gas extraction wells). The source of leachate to be recirculated may be directly from any of the leachate sumps, leachate storage pond(s) or new cells that do not contain waste. The method of leachate recirculation will depend on various factors and may change throughout the course of normal landfill activities. These factors may include the amount of leachate to be recirculated, weather and wind conditions, and location of disposal operations in relation to leachate storage facilities and final grades. The following conditions will apply to leachate recirculation activities: 1. Recirculation will be conducted in periods of dry weather when there is no imminent forecast for rain. The only recirculation permitted during wet weather is via the vertical injection wells or by use of the mister over a lined pond or new lined cell (cell will not contain waste during this operation and will be temporary). 2. Recirculation activities will prohibit exposure to any personnel. Landfill equipment will not be allowed to track dirt or mud that has been moistened by leachate. 3. Recirculation will not be allowed in areas of standing water. Recirculation will not be allowed on cover materials (interim cover or final cover areas). Furthermore, recirculated leachate may not be sprayed on outside or exterior slopes of the landfill. 4. Recirculation activities will cease in the area where leachate seeps are observed on exterior slopes of the landfill and redirected to other areas of the landfill where seeps are not present. 5. Mister machines or automated spray equipment will be positioned and operated so that all over spray falls into/onto composite-lined portions of the landfill. 6. Leachate shall be tested annually (Toxicity Characteristic Leaching Procedure analysis); the results and volumes of leachate recirculated will be recorded and placed in the site Operating Record. Updated May 28, 2014

5 1.0: Neptune Leachate Evaporator Overview: The Neptune Leachate evaporator is a fully mobile evaporation system. It is a patented system that works by creating a forced stream of cyclonic air. As waste water is blown into the cyclonic air stream through high pressure air water cannon it is turned into an aerosol. Solids and contaminates "fall out" within feet of the unit, and water evaporates off. The evaporator and booster pump are powered by an onboard 80 horsepower diesel engine. This unique process utilizes existing equipment backed by a new process patented to apply the technology using years of data that proves that when the liquid is turned into an aerosol, all contaminants and debris greater than 5 microns in diameter drop out into an "evaporation alley" and fall to the ground or pond. The remainder of the water and all particulates less than 5 microns are converted into a stage 1 aerosol and are evaporated into the atmosphere. The Neptune Evaporator is capable of evaporating 3,000 to 9,000 gallons per hour, with highest rates in ideal conditions. Office: Cornerstone Court, Suite B Hot Springs, Arkansas 71913

6 2.0: Neptune Leachate Evaporator Equipment General Details: NEPTUNE EVAPORATOR INCLUDING THE FOLLOWING: HIGH PRESSURE/AIR WATER CANNON 37,500 CFM generated by fan, 10,100 feet per minute fan outlet air velocity 27, ,000 square foot coverage, Standard oscillation 0-60 degrees 30 Brass Nozzles on primary water ring 6 brass nozzles on secondary soaking ring 150 psi Grunfos pump In-line filter (40 mesh, 420 micron) Separate ball valve 1,000 feet remote controlled operation Powered adjustable angle of throw 0-35 degrees of height adjustment. Quick disconnect water inlet fitting up to 2" diameter Frame of the machine 8.5" x 8.9" x 7" Weight of 5, lbs. ON BOARD 80HP DIESEL ENGINE 3.3 Liter Yanmar Diesel Engine 80 HP (61.7Kw) at 2,500 rpm (typical operation at 2200 rpm) Incl. FLAT DECK TRAILER Tandem Axle, Flat Deck Trailer Electric Trailer Brakes Equipped with a single 2 5/16 ball Rated at 5,500 lbs. per axle. Office: Cornerstone Court, Suite B Hot Springs, Arkansas 71913