Facility Profile ×
Colstrip Steam Electric Station
601 Willow AvenueColstrip, MT 59323
Owner - Operator
PPL Montana
Impoundment Hazard Rating
High
Well Count
469
total with457
reporting at least one exceedancePlease note that 7 wells at this facility are missing reliable coordinate data and therefore are not shown on the map.
| Well ID | Exceedances | Status |
|---|---|---|
| 807 | 1 | 1 |
| 811 | 2 | 2 |
| 812 | 1 | 1 |
| 946 | 4 | 4 |
| 947 | 6 | 6 |
| 1000M | 2 | 2 |
| 1003R | 5 | 5 |
| 1004M | 2 | 2 |
| 1005R | 4 | 4 |
| 1006M | 2 | 2 |
| 1008D | 2 | 2 |
| 1009D | 2 | 2 |
| 100A | 3 | 3 |
| 1010R | 2 | 2 |
| 1011R | 5 | 5 |
| 1012M | 2 | 2 |
| 1015R | 0 | 0 |
| 1018D | 2 | 2 |
| 101A | 2 | 2 |
| 1020D | 2 | 2 |
| 1021A | 10 | 10 |
| 1022A | 4 | 4 |
| 1023AM | 15 | 15 |
| 1028A | 4 | 4 |
| 1029M | 2 | 2 |
| 102A | 2 | 2 |
| 1030A | 1 | 1 |
| 1032M | 2 | 2 |
| 1033R | 2 | 2 |
| 1035R | 4 | 4 |
| 1036R | 6 | 6 |
| 1038D | 2 | 2 |
| 103D | 2 | 2 |
| 1040D | 2 | 2 |
| 1041D | 2 | 2 |
| 1042D | 2 | 2 |
| 1043D | 2 | 2 |
| 1044D | 2 | 2 |
| 1045D | 2 | 2 |
| 1046D | 2 | 2 |
| 1047A | 3 | 3 |
| 1048A | 4 | 4 |
| 1049M | 4 | 4 |
| 104A | 2 | 2 |
| 1052A-P | 2 | 2 |
| 105A | 4 | 4 |
| 1063D | 2 | 2 |
| 1064D | 2 | 2 |
| 1066M | 2 | 2 |
| 1067D | 2 | 2 |
| 1068A | 5 | 5 |
| 1069D | 2 | 2 |
| 1070D | 2 | 2 |
| 1071D | 4 | 4 |
| 1072D | 2 | 2 |
| 1073A | 6 | 6 |
| 1074D | 2 | 2 |
| 1075D | 2 | 2 |
| 1076D | 2 | 2 |
| 1077D | 2 | 2 |
| 1078D | 2 | 2 |
| 1082D | 4 | 4 |
| 1085R | 4 | 4 |
| 1086D | 2 | 2 |
| 1088A | 1 | 1 |
| 1091D | 4 | 4 |
| 1092D | 2 | 2 |
| 1094D | 2 | 2 |
| 1096D | 2 | 2 |
| 109A | 2 | 2 |
| 1100D | 3 | 3 |
| 1103D | 2 | 2 |
| 1104D | 2 | 2 |
| 1105D | 2 | 2 |
| 1106D | 2 | 2 |
| 1107D | 4 | 4 |
| 1108D | 4 | 4 |
| 1109D | 2 | 2 |
| 110D | 2 | 2 |
| 1110D | 2 | 2 |
| 1112D | 1 | 1 |
| 1113D | 2 | 2 |
| 1114D | 2 | 2 |
| 1116D | 3 | 3 |
| 1117D | 4 | 4 |
| 1118D | 1 | 1 |
| 1119D | 1 | 1 |
| 1121D | 2 | 2 |
| 1122D | 1 | 1 |
| 1123A | 2 | 2 |
| 1124D | 1 | 1 |
| 1125D | 1 | 1 |
| 1126A | 1 | 1 |
| 1127D | 1 | 1 |
| 121-2 | 2 | 2 |
| 12M | 3 | 3 |
| 12R-2 | 2 | 2 |
| 13M | 2 | 2 |
| 13S | 4 | 4 |
| 14M | 2 | 2 |
| 15D | 2 | 2 |
| 15S | 2 | 2 |
| 16M | 2 | 2 |
| 16SP | 2 | 2 |
| 17D | 2 | 2 |
| 17M | 2 | 2 |
| 17S | 2 | 2 |
| 17SP | 2 | 2 |
| 18D | 2 | 2 |
| 18M | 2 | 2 |
| 18S | 2 | 2 |
| 19D-2 | 0 | 0 |
| 19M | 0 | 0 |
| 1S | 2 | 2 |
| 2001A | 4 | 4 |
| 2002A | 4 | 4 |
| 2004D | 2 | 2 |
| 2005D | 2 | 2 |
| 2006D | 2 | 2 |
| 2007D | 2 | 2 |
| 2009D | 1 | 1 |
| 2010D | 1 | 1 |
| 2011D | 1 | 1 |
| 2012D | 1 | 1 |
| 20M | 0 | 0 |
| 20S | 2 | 2 |
| 20SP | 2 | 2 |
| 21SP-2 | 2 | 2 |
| 23M | 2 | 2 |
| 23S | 2 | 2 |
| 24S | 3 | 3 |
| 25SP | 2 | 2 |
| 26M | 0 | 0 |
| 27SP | 2 | 2 |
| 28SP | 2 | 2 |
| 30S-2 | 4 | 4 |
| 33S | 3 | 3 |
| 34D | 2 | 2 |
| 350D | 2 | 2 |
| 351D | 4 | 4 |
| 353T | 2 | 2 |
| 354D | 0 | 0 |
| 355D | 2 | 2 |
| 357A | 2 | 2 |
| 358D | 2 | 2 |
| 358T | 2 | 2 |
| 359D | 2 | 2 |
| 35M | 2 | 2 |
| 35SP | 2 | 2 |
| 360A | 4 | 4 |
| 361D | 2 | 2 |
| 362D | 2 | 2 |
| 364D | 2 | 2 |
| 366S | 6 | 6 |
| 367D | 2 | 2 |
| 368D | 4 | 4 |
| 36M | 2 | 2 |
| 370D | 0 | 0 |
| 371D | 4 | 4 |
| 372D | 2 | 2 |
| 373D | 4 | 4 |
| 374S | 3 | 3 |
| 37M | 2 | 2 |
| 37SP | 2 | 2 |
| 381A | 4 | 4 |
| 384D | 1 | 1 |
| 385D | 1 | 1 |
| 386D | 1 | 1 |
| 387D | 1 | 1 |
| 388D | 1 | 1 |
| 389A-P | 1 | 1 |
| 38M | 2 | 2 |
| 38SP | 4 | 4 |
| 390D-P | 1 | 1 |
| 391D-P | 2 | 2 |
| 392D | 1 | 1 |
| 394D-P | 1 | 1 |
| 395D | 4 | 4 |
| 396D-P | 2 | 2 |
| 397D | 1 | 1 |
| 398D | 1 | 1 |
| 399D | 1 | 1 |
| 39M | 2 | 2 |
| 39S | 2 | 2 |
| 40SP | 2 | 2 |
| 41SP | 4 | 4 |
| 42S | 4 | 4 |
| 44S | 4 | 4 |
| 45S | 3 | 3 |
| 47S | 4 | 4 |
| 48S | 2 | 2 |
| 49S | 2 | 2 |
| 4M | 3 | 3 |
| 50S | 4 | 4 |
| 551D | 2 | 2 |
| 554D | 2 | 2 |
| 555M | 2 | 2 |
| 557A | 2 | 2 |
| 558A | 2 | 2 |
| 559A | 2 | 2 |
| 560A | 2 | 2 |
| 563D | 2 | 2 |
| 564D | 2 | 2 |
| 565D | 1 | 1 |
| 566D | 2 | 2 |
| 568A | 7 | 7 |
| 569A | 4 | 4 |
| 56M-P | 4 | 4 |
| 572D | 2 | 2 |
| 573D | 2 | 2 |
| 574D | 2 | 2 |
| 576D | 1 | 1 |
| 577D | 2 | 2 |
| 578D | 2 | 2 |
| 579D | 2 | 2 |
| 57M-P | 4 | 4 |
| 580D | 2 | 2 |
| 581D-2 | 3 | 3 |
| 582A | 4 | 4 |
| 583DD | 0 | 0 |
| 584D | 2 | 2 |
| 585D | 2 | 2 |
| 586R | 9 | 9 |
| 587D | 2 | 2 |
| 588D | 2 | 2 |
| 589D | 3 | 3 |
| 58M-P | 2 | 2 |
| 590M | 0 | 0 |
| 591A | 2 | 2 |
| 593A | 4 | 4 |
| 594D | 5 | 5 |
| 595D | 2 | 2 |
| 596D | 2 | 2 |
| 598D-2 | 4 | 4 |
| 599D | 2 | 2 |
| 59M-P | 4 | 4 |
| 600M | 2 | 2 |
| 601M | 2 | 2 |
| 602S | 2 | 2 |
| 603D | 2 | 2 |
| 606A | 2 | 2 |
| 607A | 2 | 2 |
| 608D | 2 | 2 |
| 60M-P | 4 | 4 |
| 611D | 4 | 4 |
| 612D | 2 | 2 |
| 614D | 1 | 1 |
| 615D | 2 | 2 |
| 617A-P | 2 | 2 |
| 61M | 3 | 3 |
| 620D-P | 2 | 2 |
| 623D | 3 | 3 |
| 624D | 2 | 2 |
| 625A | 2 | 2 |
| 626A | 2 | 2 |
| 627D | 2 | 2 |
| 628D | 2 | 2 |
| 629D | 2 | 2 |
| 62S | 2 | 2 |
| 630D | 2 | 2 |
| 631D | 2 | 2 |
| 632M | 4 | 4 |
| 633M | 6 | 6 |
| 634D | 2 | 2 |
| 635A | 2 | 2 |
| 638C | 4 | 4 |
| 63S | 1 | 1 |
| 640P | 4 | 4 |
| 641P | 4 | 4 |
| 642P | 6 | 6 |
| 643P | 4 | 4 |
| 649D | 3 | 3 |
| 64A | 4 | 4 |
| 650M | 4 | 4 |
| 651M | 1 | 1 |
| 652M | 1 | 1 |
| 653M | 1 | 1 |
| 655M | 4 | 4 |
| 657M | 2 | 2 |
| 658R | 1 | 1 |
| 659D | 1 | 1 |
| 65A | 2 | 2 |
| 660P | 4 | 4 |
| 661D | 1 | 1 |
| 662D | 4 | 4 |
| 663D | 2 | 2 |
| 664D | 2 | 2 |
| 66D | 3 | 3 |
| 672A | 2 | 2 |
| 673A | 4 | 4 |
| 674R | 5 | 5 |
| 675M | 4 | 4 |
| 676R | 6 | 6 |
| 677M | 2 | 2 |
| 678D | 2 | 2 |
| 679A | 2 | 2 |
| 67M | 2 | 2 |
| 688A | 1 | 1 |
| 692A | 1 | 1 |
| 693M | 4 | 4 |
| 696R | 4 | 4 |
| 698R | 4 | 4 |
| 699R | 4 | 4 |
| 69R | 3 | 3 |
| 6D | 2 | 2 |
| 71SP | 2 | 2 |
| 72M | 2 | 2 |
| 73A | 2 | 2 |
| 76A | 4 | 4 |
| 77D | 3 | 3 |
| 7R | 2 | 2 |
| 80D | 2 | 2 |
| 81A | 2 | 2 |
| 83A | 2 | 2 |
| 84SP | 4 | 4 |
| 85SP | 1 | 1 |
| 86SP | 1 | 1 |
| 87SP | 1 | 1 |
| 88M | 1 | 1 |
| 89SP | 1 | 1 |
| 900D | 1 | 1 |
| 901D | 1 | 1 |
| 902D | 1 | 1 |
| 903D | 1 | 1 |
| 904D | 2 | 2 |
| 907D | 4 | 4 |
| 908A | 1 | 1 |
| 909A | 2 | 2 |
| 90R | 1 | 1 |
| 912D | 2 | 2 |
| 914D | 1 | 1 |
| 915A | 2 | 2 |
| 917A | 3 | 3 |
| 918A | 2 | 2 |
| 919D | 2 | 2 |
| 91S | 8 | 8 |
| 920A | 4 | 4 |
| 921A | 4 | 4 |
| 922A | 4 | 4 |
| 923A | 4 | 4 |
| 926S | 3 | 3 |
| 929D | 2 | 2 |
| 92A | 3 | 3 |
| 935A | 2 | 2 |
| 936A | 2 | 2 |
| 937A | 2 | 2 |
| 939A | 1 | 1 |
| 93A | 3 | 3 |
| 940A | 2 | 2 |
| 941A-P | 3 | 3 |
| 942A-P | 2 | 2 |
| 948M | 1 | 1 |
| 949D | 1 | 1 |
| 94A | 2 | 2 |
| 950D | 1 | 1 |
| 951D | 1 | 1 |
| 952D | 1 | 1 |
| 953D | 1 | 1 |
| 954D | 1 | 1 |
| 956D | 1 | 1 |
| 957M | 2 | 2 |
| 958D | 4 | 4 |
| 959D | 1 | 1 |
| 95D | 4 | 4 |
| 964D | 2 | 2 |
| 965D | 4 | 4 |
| 967P | 4 | 4 |
| 96A | 2 | 2 |
| 971D | 2 | 2 |
| 972D | 1 | 1 |
| 973D | 1 | 1 |
| 974D | 1 | 1 |
| 975D | 1 | 1 |
| 977A | 2 | 2 |
| 978S | 2 | 2 |
| 979S | 2 | 2 |
| 97A | 2 | 2 |
| 981D | 3 | 3 |
| 982D | 2 | 2 |
| 983D | 2 | 2 |
| 985A | 6 | 6 |
| 986D | 2 | 2 |
| 990D | 2 | 2 |
| 992D | 2 | 2 |
| 995DD | 2 | 2 |
| 996D | 2 | 2 |
| 999D | 2 | 2 |
| 99D | 2 | 2 |
| 9M | 6 | 6 |
| 9S | 2 | 2 |
| AR-1 (North Flume) GW East | 0 | 0 |
| AR-1 (North Flume) GW West | 1 | 1 |
| AR-11 GW East | 1 | 1 |
| AR-11 GW West | 1 | 1 |
| AR-2 (South Flume) GW West | 1 | 1 |
| AR-3 GW East | 2 | 2 |
| AR-3 GW West | 1 | 1 |
| AR-4 GW East | 1 | 1 |
| AR-4 GW West | 1 | 1 |
| AR-5 GW East | 1 | 1 |
| AR-5 GW West | 1 | 1 |
| AR-6 GW East | 1 | 1 |
| AR-6 GW West | 1 | 1 |
| AR-7 GW 1 West | 1 | 1 |
| AR-7 GW 2 West | 1 | 1 |
| B-6 | 1 | 1 |
| B-7 | 1 | 1 |
| Ball Park GW East | 1 | 1 |
| Ball Park GW West | 1 | 1 |
| CA-18 | 2 | 2 |
| CA-19A | 2 | 2 |
| CC3 | 1 | 1 |
| CC4 | 1 | 1 |
| Club House GW East | 1 | 1 |
| DP3-636R | 1 | 1 |
| DP3-637A | 4 | 4 |
| DP3-639D | 1 | 1 |
| EAP-411 | 2 | 2 |
| EAP-514 | 4 | 4 |
| EAP-515 | 2 | 2 |
| EAP-527 | 2 | 2 |
| OT-12 | 3 | 3 |
| OT-7 | 4 | 4 |
| PS-2 | 1 | 1 |
| PSW-2 | 2 | 2 |
| PSW-3 | 1 | 1 |
| PSW-5 | 2 | 2 |
| PSW-6 | 2 | 2 |
| PSW-7 | 1 | 1 |
| PSW-9 | 1 | 1 |
| PW-705 | 2 | 2 |
| PW-709 | 2 | 2 |
| PW-713 | 2 | 2 |
| PW-715 | 2 | 2 |
| PW-721 | 3 | 3 |
| PW-722 | 3 | 3 |
| PW-723 | 2 | 2 |
| PW-724 | 2 | 2 |
| PW-727 | 2 | 2 |
| PW-735 | 1 | 1 |
| PW-736 | 1 | 1 |
| SE-1 | 1 | 1 |
| SE-2 | 1 | 1 |
| Treatment Plant GW West | 1 | 1 |
| U3-1 | 2 | 2 |
| U3-2R | 1 | 1 |
| U3-3 | 1 | 1 |
| WA-133 | 4 | 4 |
| WA-134 | 1 | 1 |
| WA-135 | 4 | 4 |
| WA-136 | 5 | 5 |
| WA-137 | 4 | 4 |
| WA-142 | 3 | 3 |
| WI-108 | 2 | 2 |
| WI-109 | 0 | 0 |
| WI-116 | 2 | 2 |
| WM-126 | 4 | 4 |
| WM-127 | 2 | 2 |
| WM-135 | 1 | 1 |
| WR-128 | 1 | 1 |
| WR-129 | 4 | 4 |
| WS-116 | 1 | 1 |
Total Exceedances / Total Samples
1,081 / 2,900 37%
Pollutant Details
NH3
Ammonia
Sb
Antimony
As
Arsenic
Ba
Barium
Be
Beryllium
B
Boron
Cd
Cadmium
Cr
Chromium
Co
Cobalt
Cu
Copper
CN
Cyanide
F
Fluoride
GAP
Gross Alpha
GBP
Gross Beta
Pb
Lead
Mn
Manganese
Hg
Mercury
Mo
Molybdenum
Ni
Nickel
NO3
Nitrate
NO2
Nitrite
Ra
Radium
Se
Selenium
Ag
Silver
Sr
Strontium
SO4
Sulfate
Tl
Thallium
T
Tritium
U
Uranium
About Colstrip Steam Electric Station
PPL operates a network of nine coal ash impoundments at the Colstrip site. In 2003 a lawsuit was filed by residents of the town of Colstrip alleging groundwater pollution from the operations of Colstrip’s impoundments and waste ponds. In May 2008 the five utility companies that jointly own and operate the Colstrip power plant finalized a $25 million settlement with the 57 plaintiffs who blame the utilities for contaminating their groundwater and causing structural damage to some properties. In August 2012, the operators of the facility entered into an “Administrative Order on Consent” with Montana DEQ to study the effectiveness of potential remediation strategies. For more information about Colstrip, see EIP’s report Out of Control. Available here. In 2012, the EPA identified Colstrip as a location where coal ash disposal activities have been proven to contaminate ground and surface water. For more information, check this report.