Chevron GUG Waste Management EPS Waste Management Methods 1.0 Introduction Technically-acceptable methods for managing the most common exploration and production (E&P) waste types are summarized in Tables 1 and 2. For each waste type a method has been designated as: Waste Minimization Methods (Column A): these methods generally embody practices to reduce, re-use, recycle, replace, or recover. The waste minimization hierarchy identifies these methods as preferable to treatment or disposal. Treatment and Disposal Methods (Column B): these methods are primarily focused on waste treatment or disposal. A Waste Management (WM) Method could involve equipment (e.g., drum crusher), a facility (e.g., landfill), a practice (e.g., return to supplier) or a combination (e.g., oil recovery followed by land treatment). Company-controlled waste management equipment and facilities shall be designed, constructed and operated in accordance with the Global Upstream and Gas (GUG) Environmental Performance Standard (EPS) Technology Standards. Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 1 GUG WM EPS –Waste Management Methods Table 1. # Required Waste Management Methods for E&P Waste Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Asbestos gaskets Pipe insulation Roof panels 1 Asbestos-Containing Material (contains at least 1% asbestos) Refractory ceramic fibers Some refractory ceramic fibers pose similar health issues as asbestos and should be handled and contained as asbestos. Contact your industrial hygiene representative to determine. Expired, unused 2 Chemicals Spent chemicals, residues Material substitution: purchase asbestos-free products and equipment Burial in a secure area protected from public access Management at a GUG Third-Party Waste Stewardship Process-approved facility Return to supplier Incinerate Reclaim, re-use Landfill after meeting pretreatment requirements (refer to the Technology Standard for Landfills) Inventory management to prevent expiry Use as fuel Substitute less toxic chemicals 2 Landfill (double bag first), preferably buried in dedicated areas of the landfill that will not be disturbed Slurry injection/downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Mineral Drilling Fluid – OILBASED 3 Onshore only; consult Offshore Drilling Discharge Standard for offshore Diesel Synthetic (esters, olefins, paraffins) Related completion fluids Oil-contaminated water based mud Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Use closed-loop mud system and solids control technology Recondition and re-use Return un-used portion to supplier Material substitution: lower-toxicity synthetics in place of diesel and mineral oils Slurry injection/downhole disposal Thermal treatment Management at a GUG Third-Party Waste Stewardship Process-approved facility Use tanks in place of Reserve Pit (pit-less drilling) Thermal treatment Diesel Drill Cuttings – oil-based fluid system 4 Onshore only; consult Offshore Drilling Discharge Standard for offshore Mineral Oil Synthetic (esters, olefins, paraffins) Oil-contaminated cuttings from water based mud systems Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Oil recovery Alternative Daily Cover in landfill operation (after oil recovery) Landfill after free liquid removal and meeting other pretreatment requirements (refer to the Technology Standard for Landfills) Construction incorporation Bioremediation (composting/land treatment) after oil recovery Cement kiln feed stock Slurry injection/downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility 3 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Remove company-identifying information before releasing from company control. Drums shall NOT be released to the public. 5 Drums Empty drums and barrels (metal and plastic) Buy supplies in bulk to eliminate generation of empty containers Return to supplier (for refilling/reuse) Drain completely, rinse, crush, and landfill Management at a GUG Third-Party Waste Stewardship Process-approved facility Drum reconditioner Scrap and recycle Oil 6 Filters – contaminated Glycol Replace with stainless steel, reusable filters Amine Recycle Methanol Filter draining/crushing unit pretreatment Fuel Gas 7 Medical Waste Syringes, tubing Needles, glass and other ‘sharps’ 4 Incinerate Management at a GUG Third-Party Waste Stewardship Process-approved facility Steam autoclave and landfill Bandages, gauze Specimens, lab cultures Landfill (after draining) Incinerate. Solidify or containerize ash (for sharps) and landfill Segregation of medical waste and municipal waste Chemical disinfection, followed by landfill Microwave treatment, followed by landfill Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Replace with benign substitute 8 Mercury Manometers Return to supplier Reclaim/re-use (retorting) NORM (>50 μR/h above background) 9 NORM-containing equipment NORM scale/solids demonstrating an exposure rate more than 50 μR/h above background) Lube oil Transformer oil (non-PCB) 10 Oils Chemical control to prevent scale formation (scale inhibitor) Avoid mixing of chemically incompatible produced waters Remove scale from equipment and recycle cleaned scrap. Motor oil Use as fuel Transmission oil Introduce into production stream (where permitted) Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Management at a GUG Third-Party Waste Stewardship Process-approved facility Slurry injection/downhole disposal Wellbore injection during well abandonment Land treatment if < 30 pCi/g Landfill if < 1000 pCi/g Management at a GUG Third-Party Waste Stewardship Process-approved facility Regenerate onsite using clay filter Return to supplier Off-spec crude Landfill after stabilization/solidification and meeting pretreatment requirements (refer to the Technology Standard for Landfills) Testing-based lube oil replacement instead of changing according to a pre-defined maintenance schedule Hydraulic oil Slop oil Treatment and Disposal Methods (Column B) Incinerate Management at a GUG Third-Party Waste Stewardship Process-approved facility Send used oil to offsite recycling company 5 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Chlorofluorocarbons Terminate procurement; replace with (CFCs) non-ODS substitute, once consumed 11 Ozone Depleting Substances (ODS) Refrigerants Seal leaks to prevent release Halons Recycle Freon Reclaim PCB ballasts and capacitors 12 6 PCB Oil and PCB – Containing Equipment PCB transformer oil Equipment containing residual PCBs Treatment and Disposal Methods (Column B) Management at a GUG Third-Party Waste Stewardship Process-approved facility Incinerate (for oil) Material Substitution: replace with non-PCB containing substitute Recycle scrap equipment containing metal (if concentrations below 50 mg/kg) Landfill equipment, after draining (if concentrations exceed 50 mg/kg) Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # 13 Waste Type Examples of Included Waste Types Produced (reservoir) Sand Waste Minimization Methods (Column A) Downhole solids control (e.g., expandable screen completion, sand consolidation, gravel packs) Slurry injection/downhole disposal Ship oil at maximum BS&W spec Jet-pump washing Use as fuel or aggregate supplement (cement kiln) Thermal treatment Oil recovery as pretreatment to Treatment and Disposal Methods(Column B) Alternative daily cover in landfill operation (after dewatering and deoiling) Construction incorporation Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Treatment and Disposal Methods (Column B) Bioremediation after oil recovery Landfill after free liquids removal and meeting pretreatment requirements (refer to the Technology Standard for Landfills) Offshore installations: offshore discharge if oil content < 1% (m/m) Management at a GUG Third-Party Waste Stewardship Process-approved facility 7 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Downhole solids control (e.g., expandable screen completion, sand consolidation, gravel packs) Tank bottoms Oily sludge Sludge containing organic chemicals 14 Sludge – hydrocarbon Pipeline pigging waste Paraffin API separator sludge Oily viscous fluid resulting from steam injection Tank mixers or magnetic fluid conditioners Use paraffin inhibitor chemicals (wax inhibitors – not dispersants) Ship oil at maximum BS&W spec Hot oil treatment (oil wash circulation) to liquefy and incorporate into production stream Use as fuel or aggregate supplement (cement kiln) Reclaim oil component Slurry injection/downhole disposal Bioremediation/ composting after oil recovery Thermal treatment Landfill after free liquids removal and meeting pretreatment requirements (refer to the Technology Standard for Landfills) Management at a GUG Third-Party Waste Stewardship Process-approved facility Alternative daily cover in landfill operation (after dewatering and deoiling) Construction incorporation Thermal treatment Crude-oil impacted 15 8 Soil – hydrocarbon impacted (excavated) Fuel (gasoline, diesel) impacted Solvent, organic chemical, vehicle fluid impacted Alternate daily cover in landfill operation Construction incorporation Cement kiln feedstock Slurry injection/downhole disposal Landfill Bioremediation/composting Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods Table 2. # Recommended Waste Management Methods for E&P Waste Waste Type Examples of Included Waste Types Oily debris 16 Absorbent Materials Rags Waste Minimization Methods (Column A) Return to supplier for laundering and re-use Gloves Purchase reusable/washable absorbent pads Spill pads Oil recovery Treatment and Disposal Methods (Column B) Incinerate Landfill, after recovering free oil Management at a GUG Third-Party Waste Stewardship Process-approved facility Slurry injection/downhole disposal 17 Acid/Caustic Solutions Caustic (NaOH) Re-use or return to supplier Fracturing acids Cleaning acids Micro-meter to minimize excess (realtime mix vs. batch mix) Workover acid fluids Use to neutralize other acid/caustic wastes Activated Carbon Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Incinerate Landfill after meeting pretreatment requirements (refer to the Technology Standard for Landfills) Management at a GUG Third-Party Waste Stewardship Process-approved facility Return to supplier for regeneration 18 Wastewater treatment plant (WWTP) Alternative daily cover in landfill operation Landfill Incinerate Management at a GUG Third-Party Waste Stewardship Process-approved facility 9 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Incinerate 19 Amine liquids and sludges MEA, DEA, DIPA liquids and sludges Alkanolamines WWTP (liquids only) Reclaim/re-use Solidify, containerize, and landfill Sweetening agents Management at a GUG Third-Party Waste Stewardship Process-approved facility Ash 20 (Excluding medical incinerator Incinerator ash ash, or ash from Steam boiler ash burning of cleared vegetation) Construction incorporation (including bricks and blocks) Compost amendment 21 Batteries Lithium ion Lead acid Carbonaire Mercury cell 10 Landfill after stabilization if necessary to meet pretreatment requirements (refer to the Technology Standard for Landfills) Slurry injection/downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility Lead acid batteries: drain, stabilize/solidify, containerize, and landfill (refer to the Technology Standard for Landfills). Alkaline Nickel-cadmium Slurry injection/downhole disposal Material substitution: replace with rechargeable or long-life batteries Return to supplier for regeneration/recycling Metal-containing: stabilize/solidify, containerize, and landfill (refer to the Technology Standard for Landfills) Alkaline: landfill Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # 22 Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Regenerate/return to supplier Catalyst Construction incorporation Treatment and Disposal Methods (Column B) Landfill after meeting pretreatment requirements (refer to the Technology Standard for Landfills) Management at a GUG Third-Party Waste Stewardship Process-approved facility Reclaim, recycle, re-use Artificial reef Glass Wallboard 23 Construction and Demolition (C&D) Debris Wood Pallets Iron Concrete Scrap Metal Donate to community (wood must not contain preservative) Crush uncontaminated aggregates and use in construction incorporation Return to supplier for recycling (e.g., concrete, glass) Accurate volume estimation when ordering cement/concrete Drywall/wallboard: recover gypsum and use as soil amendment Incinerate Landfill (engineered liner not required for a dedicated C&D landfill) Wood waste (e.g., pallets) – Untreated: chip and use as structural amendment for composting/bioremediation Management at a GUG Third-Party Waste Stewardship Process-approved facility Use wood as fuel Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 11 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Add microbes/enzymes to grease traps (source reduction) 24 Cooking Oil and Grease Used cooking oil Return to supplier Grease in kitchen traps Send/donate: biofuels, cosmetics, or rendering plant Use as fuel (cement kiln or biofuel) Donate as animal feed (e.g., pig feed) Food waste (scraps, glass jars, cans) Paper, envelopes and other office supplies 25 Domestic Waste – SOLID Cardboard and packaging Light bulbs (incandescent) 12 Treatment and Disposal Methods (Column B) Incineration Landfill after free liquids removal/solidification (refer to the Technology Standard for Landfills) Bioremediation (compost or land farm) Management at a GUG Third-Party Waste Stewardship Process-approved facility Materials separation (at source or via materials recovery facility): recycle and compost resulting fractions Double-sided printing Compost yard and food waste Use washable dishes and cutlery in place of disposable Incinerate Donate food waste as animal feed (e.g., pig feed) Yard (green) waste Donate re-useable items (wood waste, cardboard) Municipal Solid Waste (MSW) Use as fuel Landfill Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Construction incorporation Land reclamation Alternative daily cover in landfill operation 26 Dredge Spoil Sediment – uncontaminated Agricultural amendment (metals content permitting) Open water disposal (subject to turbidity constraints of receiving environment) Disposal in diked containment areas onshore Beach rejuvenation Landfill Beneficial re-use (e.g., slope stabilization) Management at a GUG Third-Party Waste Stewardship Process-approved facility Natural habitat development (marsh, upland, island, etc.) Cement kiln feedstock 27 Drilling Fluid – water-based Freshwater mud systems Onshore only; consult Offshore Drilling Discharge Standard for offshore Saltwater mud systems Related completion fluids Use closed-loop mud system and solids control technology Recondition and re-use Return un-used portion to supplier Material substitution: select benign additives. Use tanks in place of reserve pit (pitless drilling). Reserve pit mix, bury, cover or landspread (if final concentrations do not contain oil, salt, metals or other chemicals exceeding acceptable levels for current and future land use, as determined by an assessment of the material– refer to Technology Standard for Pits) Slurry injection/downhole disposal Landfill after free liquid removal and meeting other pretreatment requirements (refer to the Technology Standard for Landfills) Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 13 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Bioremediation (if impacted with reservoir oil and non-saline) Drill Cuttings – water-based fluid system 28 Onshore only; consult Offshore Drilling Discharge Standard for offshore Landfill after free liquid removal and meeting other pretreatment requirements (refer to the Technology Standard for Landfills) Freshwater mud systems Alternative daily cover in landfill operation Saltwater mud systems Construction incorporation Cement kiln feed stock Slurry injection/downhole disposal Washing pre-treatment for saline cuttings Reserve pit mix, bury, cover or landspread (if final concentrations do not contain oil, salt, metals or other chemicals exceeding acceptable levels for current and future land use, as determined by an assessment of the material – refer to Technology Standard for Pits) Management at a GUG Third-Party Waste Stewardship Process-approved facility 29 14 Filters – Air UNCONTAMINATED Water Replace with re-usable/washable filters Recycle Landfill Filter crushing unit Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Merox sand Ion exchange resins Silica/alumina desiccants 30 Filter Media Resins Desiccants Molecular sieve Recycling media (clay filter) Diatomaceous earth (DE) Regenerate/re-use Return to supplier Alternate daily cover for landfill operation Construction incorporation Cement kiln feed stock Landfill Incinerate (if contains oil) Slurry injection/downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility Anthracite and media filters HID bulbs 31 Fluorescent Bulbs Mercury containing bulbs Ethylene glycol mixtures (EG, DEG, TEG) 32 Glycol and Antifreeze Propylene glycol (PG) Methanol Dehydration fluids Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Return to manufacturer or third party for recycling Fluorescent lamp crushing unit with mercury recovery - landfill drummed residue Material substitution: use long-life, low mercury-content bulbs Management at a GUG Third-Party Waste Stewardship Process-approved facility Incineration WWTP Regenerate onsite (filtration) Return to supplier for recycling Material substitution: propylene glycol for ethylene glycol Slurry injection/downhole disposal Landfill after free liquid removal and meeting other pretreatment requirements (refer to the Technology Standard for Landiflls) Management at a GUG Third-Party Waste Stewardship Process-approved facility 15 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Fiberglass (glass-reinforced plastic) insulation Glasswool Rockwool 33 Insulation and Refractory (Excluding Asbestos) Refractory brick Note some refractory ceramic fibers pose similar health issues as asbestos and should be handled and contained as asbestos. Contact your industrial hygiene representative to determine Return to Supplier Landfill Reclaim/re-use Management at a GUG Third-Party Waste Stewardship Process-approved facility Refill/refurbish and re-use Landfill (stabilize/solidify and containerize computer monitors and circuit boards first) Computers IT and Office Wastes 34 (Information Protection requirements may apply) Monitors Printers Photocopiers Printer, toner cartridges Return to supplier Recycle Donate Incineration (except for computer monitors and circuit boards) Management at a GUG Third-Party Waste Stewardship Process-approved facility Furniture 16 Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Incinerate Slurry injection/downhole disposal 35 Lab Samples – LIQUID Analyzed sample, including reagents Unanalyzed residual Recycle into production (for oil samples) Return uncontaminated samples to source Small containers of lab samples may be packed in a drum full of absorbent material, sealed and landfilled. Enough absorbent should be present to completely absorb all liquid in the containers placed in the drum. Only compatible samples/materials should be placed in the same drum to avoid reactions. Wastewater treatment plant for aqueous solutions Management at a GUG Third-Party Waste Stewardship Process-approved facility Incinerate 36 Lab Samples – SOLID Analyzed sample, including reagents Unanalyzed residual Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Return uncontaminated samples to source Slurry injection/downhole disposal Landfill Management at a GUG Third-Party Waste Stewardship Process-approved facility 17 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Hydrocarbon – water Chemical – water Rig wash Workover fluids 37 Oil–Water Mixtures Hydrotest fluids Drum rinse Landfill leachate Runoff from bioremediation facilities Reclaim/re-use oil Incinerate Use as fuel Management at a GUG Third-Party Waste Stewardship Process-approved facility Landfill leachate: apply to landfill for dust control Slurry injection/downhole disposal Runoff from Bioremediation Facilities: irrigate bioremediation units After oil/water separation WWTP Landfill dust control Buy materials in skid-mounted bulk hoppers or containers Boxes 38 Packaging Pallets, crates Empty sacks Thread protectors Return to supplier Re-use/recycle Donate (untreated wood only) Chip wooden pallets and use as mulch (untreated wood only) Landfill Incinerate Management at a GUG Third-Party Waste Stewardship Process-approved facility Use biodegradable packing pellets (e.g., starch-based ‘peanuts’) 18 Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Incinerate Reclaim/re-use Landfill after free liquid removal and meeting other pretreatment requirements (refer to the Technology Standard for Landfills) Use as fuel (heating value permitting) Slurry injection/downhole disposal Donate (non-leaded paint only) Management at a GUG Third-Party Waste Stewardship Process-approved facility Return to supplier 39 Paint and Coating Wastes Return to supplier 40 Pharmaceuticals Expired drugs Inventory management to prevent expiry Incinerate Containerize and landfill Management at a GUG Third-Party Waste Stewardship Process-approved facility Seismic shot 41 Pyrotechnics and Explosives Signal flares Return to supplier Smoke canisters Inventory management to prevent expiry Firing caps Incinerate (NOT explosives) Controlled detonation or discharge Management at a GUG Third-Party Waste Stewardship Process-approved facility Explosives Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 19 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types X-ray sources (medical/dental) 42 Radioactive Wastes Radioactive logging sources Industrial radiography sources Waste Minimization Methods (Column A) Return to supplier Hold for decay (short-term isotopes used in frac sand) Treatment and Disposal Methods (Column B) Management at a GUG Third-Party Waste Stewardship Process-approved facility Use paint/coatings that do not require sandblasting Use lead-free paint Reclaim or re-use Alternate daily cover in landfill operation 43 Sandblast Residue Cement kiln feedstock Buy in bulk hoppers to minimize sacks and pallets Use non-toxic blasting media (dry ice, low-metals blasting compound, etc.) Landfill after stabilization/solidification for metals if necessary and meeting pretreatment requirements (refer to the Technology Standard for Landfills) Slurry injection/downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility Construction incorporation (unless contains lead-based paint or other heavy metals) 20 Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # 44 Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Reclaim/re-use Scrap Metal and Plastic Recycle Treatment and Disposal Methods (Column B) Landfill (engineered liner not required for dedicated scrap metal landfill – refer to Technology Standard for Landfills) Management at a GUG Third-Party Waste Stewardship Process-approved facility Compost/land treat (with pathogen precaution) Agricultural amendment (metals content permitting) 45 Sludge – DOMESTIC Biosolids Sewage sludge Dewatering pre-treatment (volume reduction; drying bed) Incinerate (after dewatering) Landfill (after dewatering) Slurry injection/ downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility Water treatment sludge (e.g., flocculation) 46 Sludge – INORGANIC Cooling water tower sludges Dewatering pre-treatment (volume reduction; drying bed) Alternative daily cover in landfill operation if leachable metals are low (after dewatering) Pipeline scale Chemical control to prevent scale formation (scale inhibitor) Geothermal scales and sludges Cement kiln feedstock Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 Landfill after stabilization/solidification if necessary to meet pretreatment requirements (refer to the Technology Standard for Landfills) Slurry injection/downhole disposal Management at a GUG Third-Party Waste Stewardship Process-approved facility Construction incorporation 21 GUG WM EPS –Waste Management Methods # Waste Type Examples of Included Waste Types Alternative daily cover in landfill operation Soil – 47 Waste Minimization Methods (Column A) NON- Salt impacted HYDROCARBON Sulfur impacted IMPACTED Construction incorporation Treat using agricultural amendments and reuse (for salt- and sulfurimpacted soils) Treatment and Disposal Methods (Column B) Slurry injection/downhole disposal Landfill Encapsulation/solidification Management at a GUG Third-Party Waste Stewardship Process-approved facility Toluene Solvents – 48 Hexane Kerosene NONHALOGENATED Paint thinner/stripper Reclaim/re-use Incinerate Return to supplier Slurry injection/downhole disposal Use as fuel Incorporate into production Management at a GUG Third-Party Waste Stewardship Process-approved facility Reclaim/re-use Slurry injection/downhole disposal Acid gas re-injection (source reduction) Landfill Xylene 49 Sulfur base pad Sulfur (waste) Construction incorporation 22 Management at a GUG Third-Party Waste Stewardship Process-approved facility Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 GUG WM EPS – Waste Management Methods # Waste Type Examples of Included Waste Types Waste Minimization Methods (Column A) Treatment and Disposal Methods (Column B) Procure long-life tires Return to supplier Tire recycler Use as fuel (fuel supplement in cement kilns) 50 Tires and Rubber Hoses Vehicle tires Landfill cell construction (liner protection) Tire shredder to provide crumb rubber Artificial reefs Landfill – weighted to prevent future resurfacing Incinerate Management at a GUG Third-Party Waste Stewardship Process-approved facility Donate to community: shoes, sandals, belts, swings, playground cushions Construction incorporation Version 2.0. Revised 1 May 2010. Printed 16 February 2016. Uncontrolled when printed. 533562664 23