2) Ignite gas 



3) Enlarge pits 



4) Move so remote from well -site 

 c. Foam drilling 



1) Enlarge pits or add tanks 



2) Evaporate liquid, or 



3) Haul to disposal site 



3. Noise abatement - power plants-mufflers 



4. Solid waste disposal - nondrilling solids 



a. Trash 



b. Broken, spent equipment and containers 



5. Liquid waste 



a. Sanitary facilities - nondrilling liquids 



1) Maintenance of sewage facilities or septic field 



2) Maintenance and hauling away of chemically treated 

 wastes 



b. Waste disposal from machinery 



1) Oil from engines 



2) Radiator fluids 



c. Excess water management 



1) Seepage from marsh area into ring levee 



a) Skim oil from surface 



b) Pump sump into adjacent marsh 



2) Rainwater or wash water 



a) Skim oil from surface 



b) Pump to another area or truck to disposal site 



6. Drilling solids 



a. Tailings 



1) Place in reserve pit 



2) If oil base mud: 



(a) Clean and wash cuttings, place in reserve pit 



(b) Remove wash fluid from site 



(c) Place cuttings in containers and remove from site 



b. Spent equipment 



7. Drilling liquids 



a. Continuous activities with muds 



1) Maintain reserve pit levee 



2) Open containers and mix various materials used in muds - 

 oil, bentonite, tannin, caustic soda, cornstarch, red- 

 wood fiber, wood fiber, lime, corn, acid, phosphate, 

 clays, sawdust, cottonseed hulls, barite. 



3) Circulate mud, pump into well, return to shaker table, 

 back to settling tank and sump 



4) Pump excess liquids or materials of improper type to 

 reserve pit. 



5) Neutralize or remove toxic materials from reserve pit 



6) Skim floating oil off surface with vacuum truck and 

 remove from site 



b. Pulling drill pipe 



1) Catch mud in drill pipe as pipe is disconnected, return 

 to settling pond by buckets 



2) Clean up rig floor after a trip - see II.E.5.C.2 



426 



