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<br /> <br />• <br />APPENDIX 15-1 (CONT.) <br /> MONT1iLY QUARTERLY SEM- <br />ANNUALLY ANNUALLY <br />NEW HORIZON 2 MINE <br />GW-N13 (Underburden) Field(6) Lab(5) <br />GV~N14 (Dakota Coal) Field(6) Lab(5) <br />GV~N15 (Overburden) Feld(6) Lab(5) <br />GV~N16P1 (Underburden) Feld(6) Lab(5) <br />GV~FN17P1 (Dakota Coal) Feld(6) Lab(5) <br />GV~N18P1 (Overburden) Feld(6) Lab(5) <br />GW-N36 (Underburden) Field(6) lab(5) <br />GV~N37 (Dakota Coal) Field(6) Lab(5) <br />GV~N38 (Overburden) Field(6) Lab(s) <br />G1/~N39 (Alluvium) Feld(6) Lab(5) <br />G1/~N40 (Alluvium) Feld(6) Lab(5) <br />SV~N102 (NPDES 007) Feld(3) Lab(4) <br />SW-N104 (V~kst Lateral Ditch) Feld(1) Lab(5) <br />SV~FN105 (V~kst Lateral Ditch) Feld(1) Lab(5) <br />SVtFN108 (Calamity Draw) Feld(1) Lab(5) <br />SW-N109 (Calamity Draw) Field(1) Lab(5) <br />~~8ti0f1Saauie iiNl,ik~~ wa~ci wiiuuwwry, rn, ienµ~raiuie, ucmiaepui for wnacz water monizonrg <br />(2) Me~s~re mo~~r~i h~~lysJ~o~ cond~ctivit~r PF~, t rr~erature, oil/ reuse, se~a~le oli ~~sotalls~s~n~e~ lids, <br />tota issoly so i s, an ironovr alp~s arging wat~r om po s or gg <br />(3) is ia~~in~ wat~rft°ro m~Q01 ndt~~~~pf to/gal suspene~e~ oldstotal ~issolvewd soli~s~ <br />an iro o ce a month for II 00~ an uu <br />(4) asure water cored Ctivity, , te. rature, oil/ r sQ, settl~~tbl ~sgJitis, t tai suspen~~ solinds~, total <br />issoly~d s lid , iron. II suit borato ~n i lr a M~a ust, ar ove r on <br />quarterly sc~ledsule~f pond sure discaharging~or Otatfalsls r ugh ~f)~'"g <br />(5) Me~sUre~ter ~ ndu .N N PI~ t~e-r~ture, oiUg~ree~~se, an flow/d~th. Have( ful s~ itg I~bordtorv <br />ana vsls a rua st or Huai scfleoule. Augus or Annua u e) r listed <br />grorndwater mo itonng sand su ce monitonng stations. <br />(6) Measure monthly water depth for groundwater monitoring wells (GWs). <br />(7) Measure annually water depth for groundwater; revert bads to monthly if water is found. <br />(ReviseA 12-31-96) <br />