LDENR Office Of Conservation

UIC Well Class Type

Well Classification Well Class Type Code Well Class Description
I 1 HAZARDOUS INDUSTRIAL
I 1-C COMMERCIAL HAZARDOUS INDUSTRIAL
I 2 NONHAZARDOUS INDUSTRIAL
I 2-C COMMERCIAL NONHAZARDOUS INDUSTRIAL
II 10 HYDROCARBON STO (LIQUID @ STP)
II 10-I INACTIVE HYDROCARBON STO (LIQUID @ STP)
II 11-A COMPRESSED AIR STORAGE
II 11-AI INACTIVE COMPRESSED AIR STORAGE
II 11-FS FORMATION GAS STORAGE
II 11-L LPG STORAGE SALT DOME
II 11-LI INACTIVE LPG STORAGE SALT DOME
II 11-N NATURAL GAS STORAGE SALT DOME
II 11-NI INACTIVE NATURAL GAS STORAGE SALT DOME
II 3 ORPHANED INJECTION AND MINING
II 4 PRODUCING/CYCLIC INJECTION
II 5 PRODUCED SALT WATER
II 5-C COMMUNITY SALT WATER DISPOSAL
II 5-SC SWD FOR SALT CAVERN
II 5-SCC COMMUNITY SWD FOR SALT CAVERN
II 6 ANNULAR SWD
II 7 COMMERCIAL SWD
II 8 E&P WASTE DISPOSAL
II 8-N COMMERCIAL E&P WASTE DISPOSAL
II 9-C ER - COMMUNITY
II 9-CO ER -- INJECTION (CO2)
II 9-FF ER -- FIRE FLOOD
II 9-IG ER -- INJECTION (GAS)
II 9-IGW ER -- INJECTION (GAS AND WATER)
II 9-IO ER -- INJECTION (OTHER)
II 9-IW ER -- INJECTION (WATER)
II 9-O ER -- OBSERVATION
II 9-W ER -- WATER
III 12-B BRINE SOLUTION MINING
III 12-BI INACTIVE BRINE SOLUTION MINING
III 12-O OTHER SOLUTION MINING
III 12-OI INACTIVE OTHER SOLUTION MINING
III 12-S SULFUR SOLUTION MINING
III 12-SI INACTIVE SULFUR SOLUTION MINING
IV ZZZZZ VIRTUAL/BAD DATA
V 11-FO FORMATION STORAGE OBSERVATION ONLY
V 13 IMPROVED SINKHOLE
V 14 INDUSTRIAL DRAINAGE
V 15 HEAT PUMP/AC RETURNFLOW WELL
V 16 GEOTHERMAL
V 17 AQUIFER REMEDIATION
V 18 SUBSIDENCE CONTROL
V 19 CESSPOOL
V 20 INDUSTRIAL PROCESS WASTE
V 21 AUTO REPAIR
V 22 VENT WELL
V 23 SPECIAL DRAINAGE WELLS
V 24 MUD DISPOSAL
V 25 INJECTION MONITOR WELL
V 26 AQUIFER RECHARGE
V 27 FOOD PROCESSING WELL
V 28 COOLING WATER
V 29 AQUIFER STORAGE (ASR)
V 30 STRAT TEST
V 31 CCS MONITOR WELL
V 32 STORAGE
VI 33 GEOLOGIC SEQUESTRATION