b. Saltwater disposal 



1) Frequent checking - vehicle movement 



2) Skimming 



a) Filter replacement and disposal 



b) Skimmed oil collection and return to system 



3) Aeration - maintenance and repair or forced draft tower, 

 blower, and pumps 



4) Chemical treatment - supply lime, coagulant, chlorine 

 for treatment 



5) Sedimentation - removal and disposal of floe from 

 coagulation 



6) Filtration 



a) Removal of clogged sand and disposal 



b) Occasional recharge of sand portion of filter 



c. Spill and leak cleanup 



1) Bringing in absorbants, skimmers 



2) If large area removed from production facilities, burn 

 off 



3) Repair faulty equipment 



4) Remove saturated sediments 



5) Bring in fill and replace dug out areas 



6) Revegetate or fertilize if necessary 



d. Workover of well - swabbing, casing, replacement, sand 

 removal from bore, scale cleaning, pump repair, deepening, 

 plugging back, recementing, refracturing, reacidizing 



1) Rig placement - see steps II. D., II. E., II.F.l 



e. Termination of production (7-14 days) 



1) Land areas 



a) Enter vehicles and equipment 



b) Remove all above-surface structures 



c) Truck to other locations 



d) Remove surface level equipment which will inter- 

 fere with other surface uses of the land - power- 

 lines, tanks, separators, treaters, etc. 



(1) Excavate around structure 



(2) Cut, blast, or remove to some level below 

 ground 



e) Excavate wellhead below ground level, cap, and 

 fill 



f) Grade and fill site to specifications 



g) Remove roadway to specifications 



h) Revegetate to specifications, if necessary 

 i) Remove all vehicles, equipment 



2) Removal of barge or piling mounted production facilities 



a) Enter vessels, vehicles, equipment 



b) Remove structures if on piles 



c) Remove barges with production structures 



d) Remove piles 



e) Remove surface and shallow gathering lines 



f) Excavate well head below bottom level, cap, and 



fill 



g) Close off canal - see steps II.F.2.b.3 

 h) Remove all vessels, vehicles, equipment 



431 



