Hydrological Unit: Hat
| Site number | Name | Site type |
|---|---|---|
| 06396490 | WARBONNET CREEK NEAR HARRISON, NEBR. | Stream |
| 06397700 | HAT CR AT GEISER RANCH NR ARDMORE, S. DAK (NEB) | Stream |
| 06399300 | HAT CR TRIB NEAR ARDMORE SD | Stream |
| 06399700 | PINEY CREEK NEAR ARDMORE SD | Stream |
| 06400000 | HAT CREEK NEAR EDGEMONT,SD | Stream |
| 424923104112701 | 33-061-21acc01 | Well |
| 424930104133001 | 35-062-20cd 01 | Well |
| 425000104153001 | 33-062-13bc 01 | Well |
| 425326104054899 | 34N 60W29CA 1 | Test hole not completed as a well |
| 425330104143001 | 34-060-30dc 01 | Well |
| 425331104143101 | 34-060-30dd 02 | Well |
| 425332104143201 | 34-060-30aa 01 | Well |
| 425333104143301 | 34-060-30dd 01 | Well |
| 425500104120001 | 34-060-28ba 01 | Well |
| 425505104124501 | 34-061-17ca 01 | Well |
| 425530104133001 | 34-061-08bd 01 | Well |
| 425531104133101 | 34-061-08bd 02 | Well |
| 425548103401601 | 34N 54W10DC 1 | Test hole not completed as a well |
| 425635104140001 | 34-061-06cd 01 | Well |
| 425700104050001 | 31-065-05cb 01 | Well |
| 425700104053001 | 34-060-04cb 01 | Well |
| 425830104093001 | 35-062-26ab 01 | Well |
| 425831104093101 | 35-062-26aa 01 | Well |
| 425910104032001 | 35-060-27ba 01 | Well |
| 430003103400801 | 12S 4E17DDCB | Well |
| 430009103394500 | 12S 4E17DD | Stream |
| 430010103390001 | 12S 4E16DC | Well |
| 430010103560901 | 12S 2E18CCAC | Well |
| 430014103542101 | 12S 2E17CADA | Well |
| 430019103574700 | 12S 1E14DB | Stream |
| 430020102451901 | 12S 3E15DB | Well |
| 430021104013701 | 12S 1E17CA | Well |
| 430022103585500 | 12S 1E15DB | Stream |
| 430025103494401 | 12S 2E13BACD | Well |
| 430034104002501 | 12S 1E16BD | Well |
| 430034104012201 | 12S 1E17AC | Well |
| 430035103493600 | 12S 2E13AC | Stream |
| 430035104004301 | 12S 1E16BC | Well |
| 430035104010101 | 12S 1E17AD | Well |
| 430040103384600 | 12S 4E16AA | Stream |
| 430044103545000 | 12S 2E17BB | Stream |
| 430045103500200 | 12S 2E13BB | Stream |
| 430045103533800 | 12S 2E16BB | Stream |
| 430047103593200 | 12S 1E15BB | Stream |
| 430047104004401 | 12S 1E16BB | Well |
| 430048104002601 | 12S 1E16BA | Well |
| 430050104011701 | 12S 1E17AB | Well |
| 430059103351300 | 12S 4E12DD | Stream |
| 430100103000801 | 12S 1E 9DC | Well |
| 430100103393201 | 12S 4E 9CB | Well |
| 430100103555800 | 12S 2E 7CC | Stream |
| 430100104002701 | 12S 1E 9CD | Well |
| 430100104003801 | 12S 1E 9CC | Well |
| 430102103582000 | 12S 1E11CCA | Stream |
| 430104103372500 | 12S 4E10DA | Stream |
| 430108103050301 | 12S 2E 8CB | Well |
| 430113104000801 | 12S 1E 9DB | Well |
| 430120104135401 | 35-061-07dbb01 | Well |
| 430122103393001 | 12S 4E 9BB | Well |
| 430131103544100 | 12S 2E 8B | Stream |
| 430132103373001 | 12S 4E10AA | Well |
| 430135103530500 | 12S 2E 9AB | Stream |
| 430145103323001 | 12S 5E 4CD | Well |
| 430148103394001 | 12S 4E 4CC | Well |
| 430200103333501 | 12S 5E 5CB | Well |
| 430202103574901 | 12S 1E 2DA | Well |
| 430210103394001 | 12S 4E 4BC | Well |
| 430224103394601 | 12S 4E 5AACA | Well |
| 430227103390001 | 12S 4E 4BA | Well |
| 430227103432601 | 12S 3E 2ABAC | Well |
| 430228103391801 | 12S 4E 4 | Well |
| 430228103392801 | 12S 4E 4BAB | Well |
| 430228104025501 | 12S 1E 6BB | Well |
| 430230103380501 | 12S 4E 3BA | Well |
| 430231103415201 | 12S 4E16BB | Well |
| 430240103382001 | 11S 4E34CC | Well |
| 430245103431900 | 11S 3E35DD | Stream |
| 430247103395701 | 11S 4E32DD | Well |
| 430250103392701 | 11S 4E33CDAA | Well |
| 430250103560501 | 11S 2E31CC | Well |
| 430253103475100 | 11S 3E32CB | Stream |
| 430257103563401 | 11S 1E36DB | Well |
| 430258103414300 | 11S 4E31CA | Stream |
| 430258103564101 | 11S 1E36CA | Well |
| 430321103462000 | 11S 3E33BA | Stream |
| 430324103474200 | 11S 3E32BB | Stream |
| 430340104005001 | 11S 1E28CC | Well |
| 430410103342501 | 11S 5E30BABD | Well |
| 430415104014001 | 11S 1E29BB | Well |
| 430416103524101 | 11S 2E21DC | Well |
| 430422103451401 | 11S 3E22CDCC | Well |
| 430422103524001 | 11S 2E21DDDA | Well |
| 430422104005001 | 11S 1E28BB | Well |
| 430437103490101 | 11S 3E19CBCB | Well |
| 430438104015101 | 11S 1E20CB | Well |
| 430444103391201 | 11S 4E21 | Well |
| 430448103324201 | 11S 5E20 | Well |
| 430451103384901 | 11S 4E21ACAA | Well |
| 430453103325201 | 11S 5E20AD | Well |
| 430500103272001 | 12S 6E 6CA | Well |
| 430500103274201 | 11S 6E19BB | Well |
| 430503103311501 | 11S 5E22BBAB | Well |
| 430503103402700 | 11S 4E20BA | Stream |
| 430504103432300 | 11S 3E23AA | Stream |
| 430505103392001 | 11S 4E21BA | Well |
| 430525103444100 | 11S 3E15D | Stream |
| 430531103484400 | 11S 3E18CA | Stream |
| 430553103322701 | 11S 5E16BB | Well |
| 430556103371200 | 11S 4E14BB | Stream |
| 430557103585501 | 11S 1E14AB | Well |
| 430610103340001 | 11S 5E 7DD | Well |
| 430613103421200 | 11S 3E12DD | Stream |
| 430708103363201 | 11S 4E 2DBDB | Well |
| 430714103452800 | 11S 3E21CB | Stream |
| 430717103415400 | 11S 4E 6CB | Stream |
| 430733103420301 | 11S 3E 1AADC | Well |
| 430738103335700 | 11S 5E 6AA | Stream |
| 430813103335701 | 10S 5E31ADCA | Well |
| 430836103424801 | 10S 3E25CD | Well |
| 430842103380201 | 10S 4E27CDBD | Well |
| 430847103402701 | 10S 4E29CA | Well |
| 430850103280001 | 10S 5E25DD | Well |
| 430852103382800 | 10S 4E27CCB | Stream |
| 430920103455201 | 10S 3E28AC | Well |
| 430945103400001 | 10S 4E20D | Well |
| 431004103354201 | 10S 4E24BD | Well |
| 431109103451001 | 10S 3E21BABC | Well |
| 431112103463501 | 10S 3E16BB | Well |
| 431113103310401 | 10S 5E15BBAA | Well |
| 431155103333100 | 10S 5E 8B | Stream |
| 431200103342201 | 10S 5E 7BAAC | Well |
| 431203103395201 | 10S 4E 8AA | Well |
| 431218103393001 | 10S 4E 4CCA | Well |
| 431219103303601 | 10S 5E 3DCA | Well |
| 431233103493501 | 10S 2E 1DB | Well |
| 431234103391201 | 10S 4E 4 | Well |
| 431234103391202 | 10S 4E 42 | Well |
| 431242103451001 | 10S 3E15BA | Well |
| 431347103352000 | 9S 4E36ABA | Stream |
| 431424103352000 | Landers Ditch nr Edgemont, SD | Ditch |
| 431445103352401 | 009S04E24DCCA | Well |
| 431539103360701 | 009S04E14DDAD | Well |
| 431605103190201 | 009S07E175 | Well |
| 432607103301001 | 007S05E15DD | Well |
| 434700104160001 | 34-062-01ad 01 | Well |
| 434800104110001 | 35-061-15bcc01 | Well |
| 435200104130001 | 34-061-33da 01 | Well |
| 435600104060001 | 35-060-27bc 01 | Well |
| 435600104120001 | 34-060-09db 01 | Well |
| 435800104080001 | 34-061-01ab 01 | Well |
| 435800104090001 | 34-061-02bb 01 | Well |
| 435800104143001 | 34-061-06ab 02 | Well |
| 435801104143101 | 34-061-06ab 01 | Well |