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Water Quality Samples for USA
Grouped by County

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.
Some complex retrievals may take a few minutes.

Site Selection Results -- 171 sites found


Hydrologic unit = 17010101
Minimum number of samples = 1

Save file of selected sites to local disk for future upload

Data for individual sites can be obtained by selecting the site number below

  group icon Flathead County, Montana
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 484506114524701 35N25W31CA 01 1967-09-26 1967-09-26 1
USGS 484556114540701 35N26W25CA 01 1967-09-26 1967-09-26 1
USGS 484620114534501 35N26W25AB 01 1967-09-26 1967-09-26 1
USGS 484751114552401 35N26W14BD 01 1967-09-26 1967-09-26 1
USGS 485003114573701 36N26W33DC 01 1967-09-26 1967-09-26 1
  group icon Lincoln County, Montana
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 12300110 Lake Koocanusa at international boundary 1972-06-14 2023-11-02 4329
USGS 12300200 Young Creek near Rexford MT 1982-03-16 1983-02-16 12
USGS 12300400 Cayuse Creek near Trego MT 1982-03-15 1983-02-16 10
USGS 12300500 Fortine Creek near Trego MT 1982-03-15 1983-02-16 12
USGS 12300800 Deep Creek near Fortine MT 1982-03-15 1983-02-16 13
USGS 12301250 Tobacco River at Eureka, MT 2022-11-16 2024-03-04 13
USGS 12301300 Tobacco River near Eureka MT 1970-10-22 2013-08-21 236
USGS 12301500 Kootenai River near Rexford MT 1967-06-29 1972-05-04 64
USGS 12301600 Lake Koocanusa bl Pinkham Cr nr Rexford MT 1972-06-07 2024-03-05 330
USGS 12301810 Big Creek near Rexford MT 1982-03-16 1983-02-15 12
USGS 12301830 Lake Koocanusa at Tenmile Cr nr Libby MT 1972-06-06 2022-06-15 9833
USGS 12301919 Lake Koocanusa at forebay, nr Libby, MT 1972-06-05 2023-09-27 7581
USGS 12301933 Kootenai River bl Libby Dam nr Libby MT 1964-05-15 2024-03-05 1383
USGS 12303000 Kootenai River at Libby MT 1969-07-09 1995-02-17 74
USGS 12303100 Flower Creek near Libby MT 1982-06-15 1992-09-02 84
USGS 12303400 Ross Creek near Troy MT 1970-11-17 1978-09-07 21
USGS 12303430 Stanley Creek near Troy MT 1976-07-14 1978-09-06 19
USGS 12303490 Lake Creek near Troy MT 1976-07-14 1978-09-06 19
USGS 12303500 Lake Creek at Troy MT 1982-11-22 2023-09-12 95
USGS 480954115380901 Bear Creek nr Libby MT 1992-09-15 1992-09-15 1
USGS 481008115351301 Bear Ck ab Cable Ck near Libby MT 1992-09-15 1992-09-15 1
USGS 481230115512901 28N33W09BADC01 1980-08-15 1981-06-09 2
USGS 481239115512501 28N33W09BAAA01 1980-08-15 1981-06-09 2
USGS 481253115285001 Libby Ck ab Crazyman Ck nr Libby MT 1992-09-15 1992-09-15 1
USGS 481316115512401 28N33W04BDAC01 1980-09-04 1980-09-04 1
USGS 481332115282801 Libby Ck ab Swamp Ck nr Libby MT 1992-09-15 1992-09-15 1
USGS 481334115504601 Bull Lake South near Troy 1980-06-30 1981-08-11 58
USGS 481347115502301 29N33W32DACD01 1980-09-04 1980-09-04 1
USGS 481425115502101 29N33W32AAAB01 1980-09-04 1980-09-04 1
USGS 481532115285501 29N30W19DBC 01 1973-07-27 1973-07-27 1
USGS 481553115283601 29N30W19ADB 01 1973-07-29 1973-07-29 1
USGS 481554115291301 29N30W19BDB 01 1972-08-31 1973-07-09 2
USGS 481601115315901 29N31W23BBD 01 1973-07-27 1973-07-27 1
USGS 481602115514201 Bull Lake North near Troy 1980-06-30 1981-08-11 36
USGS 481611115295501 29N31W13DDC 01 1972-08-31 1972-08-31 1
USGS 481640115313601 29N31W14BDD 01 1973-07-27 1973-07-27 1
USGS 481647115503701 29N33W17ACAA01 1980-09-05 1980-09-05 1
USGS 481702115502801 29N33W17AABB01 1980-09-04 1980-09-04 1
USGS 481741115375901 Granite Ck nr Libby MT 1992-09-15 1992-09-15 1
USGS 481807115353601 Granite Creek bl Horse Ck nr Libby MT 1992-09-15 1992-09-15 1
USGS 481821115312801 29N31W02ACC 01 1972-08-31 1973-07-05 2
USGS 481842115325701 29N31W03BAA 01 1973-07-25 1973-07-25 1
USGS 481852115301801 Libby Creek above Granite Creek near Libby MT 2008-05-01 2008-05-01 1
USGS 481852115323401 30N31W34DCA 1973-07-25 1973-07-25 1
USGS 481855115303001 30N31W36CDB 02 1973-07-28 1973-07-28 1
USGS 481916115305401 30N31W35ADD 1972-08-31 1973-07-09 2
USGS 481917115504301 30N33W32ACDB01 1981-06-10 1981-06-10 1
USGS 481918115503401 30N33W32ACAD01 1980-09-05 1980-09-05 1
USGS 481925115331701 30N31W34 BBD 1973-08-02 1973-08-02 1
USGS 481930115504401 30N33W32ABDB01 1981-06-10 1981-06-10 1
USGS 481932115311001 30N31W35AAB 1972-08-31 1973-07-02 2
USGS 481934115303701 30N31W36BBA 01 1972-08-31 1973-07-02 2
USGS 481944115515501 30N33W30DCAD01 1980-08-08 1981-06-09 2
USGS 481945115515401 30N33W30DCAD02 1980-08-09 1981-06-09 4
USGS 481956115302601 30N31W25 CAC 1972-08-31 1972-08-31 1
USGS 481958115513601 30N33W30DAAD01 1980-08-10 1981-06-10 2
USGS 481958115513602 30N33W30DAAD02 1980-08-10 1981-06-10 2
USGS 482004115310601 30N31W26 ADC2 1972-08-30 1975-01-28 3
USGS 482015115305501 30N31W26 ADA 1972-08-31 1974-01-21 5
USGS 482024115310701 30N31W26 AAB 1972-08-30 1972-08-30 1
USGS 482025115304301 30N31W25 BBA 1972-08-31 1973-07-05 3
USGS 482029115305501 30N31W23DDD02 1973-08-02 1973-08-02 1
USGS 482030115305901 30N31W23DDD 1972-08-30 1972-08-30 1
USGS 482031115303201 30N31W24 CDC 1972-08-31 1972-08-31 1
USGS 482032115311301 30N31W23DDC 1972-08-30 1973-07-02 2
USGS 482036115504701 30N33W20DCCA01 1980-09-05 1980-09-05 1
USGS 482039115305501 30N31W23DDA 1972-08-30 1973-07-05 3
USGS 482039115323001 30N31W22DDB01 1973-07-26 1973-07-26 1
USGS 482041115303001 30N31W24 CDB 1973-08-02 1973-08-02 1
USGS 482043115305101 30N31W24 CBC 1973-08-02 1973-08-02 1
USGS 482043115315001 30N31W23CAC 1973-07-26 1973-07-26 1
USGS 482047115302801 30N31W24CAC 1972-08-30 1972-08-30 1
USGS 482049115304901 30N31W24 CBB2 1972-09-07 1974-01-21 4
USGS 482052115310901 30N31W23DAB 1972-08-30 1973-07-05 3
USGS 482054115310901 30N31W23DAB02 1973-03-08 1973-03-08 1
USGS 482058115305801 30N31W23ADD 1972-08-30 1973-07-12 2
USGS 482101115310301 30N31W23ADA01 1972-08-30 1972-08-30 1
USGS 482108115314001 30N31W23BAD 1972-08-30 1974-01-21 3
USGS 482113115501901 30N33W20AADB01 1980-09-06 1980-09-06 1
USGS 482117115512901 30N33W20BBBC01 1980-09-06 1980-09-06 1
USGS 482124115315401 30N31W14CCD 01 1972-08-30 1972-08-30 1
USGS 482142115320902 30N31W14CBB02 1972-08-30 1973-07-05 2
USGS 482147115321501 30N31W15DAA01 1973-04-18 1973-04-18 1
USGS 482152115320701 30N31W14BCC01 1972-08-30 1973-07-05 2
USGS 482154115515901 30N33W18ACDB01 1980-09-06 1980-09-06 1
USGS 482201115321901 30N31W15AAD01 1972-08-30 1972-08-30 1
USGS 482224115323901 30N31W10DCA01 1972-08-30 1973-07-05 2
USGS 482230115333501 Flower Ck at Libby MT 1992-09-16 1992-09-16 1
USGS 482234115520901 30N33W07DBCB01 1980-09-07 1980-09-07 1
USGS 482235115513801 30N33W07DAAC01 1980-09-05 1980-09-05 1
USGS 482239115234901 30N31W10DBB01 1973-08-01 1973-08-01 1
USGS 482239115343501 30N31W09CBA02 1973-07-30 1973-07-30 1
USGS 482240115333701 30N31W09ADD01 1972-08-29 1973-07-09 2
USGS 482245115333801 30N31W09ADD03 1973-08-02 1974-01-21 2
USGS 482245115514801 30N33W07ADCB01 1980-09-07 1980-09-07 1
USGS 482254115345001 30N31W08AAD01 1973-08-02 1973-08-02 1
USGS 482316115344101 30N31W04CCB01 1972-08-29 1974-01-22 4
USGS 482318115321601 Libby Creek at Mouth at Libby MT 2008-04-03 2008-06-12 8
USGS 482323115315201 30N31W02CBD01 1972-08-29 1973-07-09 2
USGS 482324115342601 30N31W04CAC01 1972-08-29 1973-07-09 2
USGS 482325115333501 Flower Cr Upstream From Mouth at Libby MT 1992-09-16 1992-09-16 1
USGS 482327115333401 Parmenter Creek at Libby MT 1982-03-16 2008-06-13 16
USGS 482329115331301 30N31W03CBA 01 1974-01-22 1974-01-22 1
USGS 482340115340701 30N31W04ACB01 1972-08-29 1974-01-22 3
USGS 482344115314201 30N31W02BDB01 1973-07-12 1973-07-12 1
USGS 482347115501701 30N33W05AADD01 1980-09-08 1980-09-08 1
USGS 482352115314301 30N31W02BAB01 1973-07-12 1973-07-12 1
USGS 482353115324501 30N31W03ABB01 1973-07-24 1973-07-24 1
USGS 482354115344701 30N31W04BBB01 1972-08-29 1973-07-09 2
USGS 482357115340101 31N31W33DCC 1972-08-29 1974-01-22 4
USGS 482357115503801 30N33W05ABAB01 1980-08-14 1981-06-09 2
USGS 482357115503802 30N33W05ABAB02 1980-08-14 1981-06-09 4
USGS 482404115345501 31N31W32DDA 1972-08-29 1974-01-22 4
USGS 482412115344701 31N31W33CBC 1972-08-29 1973-07-09 4
USGS 482428115335601 31N31W33ACC 1972-08-29 1973-07-05 3
USGS 482428115490101 31N33W33ADDB01 1980-09-09 1980-09-09 1
USGS 482430115341201 31N31W33BDA 1973-03-08 1973-06-05 2
USGS 482432115510601 31N33W32BDBC01 1980-09-07 1980-09-07 1
USGS 482433115305101 31N31W36BCB 1973-07-12 1973-07-12 1
USGS 482433115354701 31N31W32BDB 1972-08-29 1972-08-29 1
USGS 482438115352601 31N31W32ABC 1972-08-29 1973-07-03 3
USGS 482445115484501 31N33W34BBBD01 1980-09-09 1980-09-09 1
USGS 482450115351001 31N31W29DDC 02 1972-07-13 1973-06-05 3
USGS 482453115500801 31N33W28CCCC01 1980-09-08 1980-09-08 1
USGS 482455115350301 31N31W29DDB 02 1973-07-12 1973-07-12 1
USGS 482455115355401 31N31W29CCA 02 1973-07-12 1973-07-12 1
USGS 482500115355001 31N31W29CCA 1973-07-12 1973-07-12 1
USGS 482501115355101 31N31W29CBD 04 1973-07-12 1973-07-12 1
USGS 482502115491101 31N33W28DDBB01 1980-09-09 1980-09-09 1
USGS 482507115510101 Schoolhouse Lake near Troy 1980-07-01 1981-08-12 34
USGS 482508115320101 31N31W26CBB 1973-07-12 1973-07-12 1
USGS 482514115490001 Savage Lake near Troy 1980-07-01 1981-08-12 45
USGS 482516115502301 31N33W29DABA01 1980-09-08 1980-09-08 1
USGS 482519115315501 31N31W26BCD 01 1973-04-18 1973-04-18 1
USGS 482525115491601 31N33W28ACAD01 1981-06-10 1981-06-10 1
USGS 482531115361801 31N31W30AAC 1973-07-12 1973-07-12 1
USGS 482550115374101 Cedar Creek near Libby MT 1982-03-16 1983-02-17 13
USGS 482607115511501 31N33W20CBAA01 1980-09-08 1980-09-08 1
USGS 482645115523301 31N33W18CCAA01 1980-09-08 1980-09-08 1
USGS 482721115380801 Quartz Creek near Libby MT 1982-03-16 1983-02-15 12
USGS 482733115330001 31N31W10CDB 1973-07-12 1973-07-12 1
USGS 482734115172401 Lake Koocanusa nr Yarnell Island, nr Libby, MT 2021-07-07 2021-07-07 2
USGS 482812115331701 31N31W10BBB 1973-07-12 1973-07-12 1
USGS 4828121155315 Kootenai R near Troy, MT 2020-09-02 2020-09-02 4
USGS 482827115314101 31N31W02CDB 1973-07-12 1973-07-12 1
USGS 482843115313003 31N31W02BDD 03 1973-07-12 1973-07-12 1
USGS 482856115350601 31N31W05ABD01 1973-07-12 1973-07-12 1
USGS 482900115310801 31N31W02AAC 01 1973-07-12 1973-07-12 1
USGS 483107115570001 Ruby Creek near Troy MT 1982-03-15 2008-05-23 13
USGS 483829115173601 Lake Koocanusa ab Allen Gulch, nr Rexford, MT 2021-07-07 2021-07-07 2
USGS 484619115180401 Lake Koocanusa ab Sutton Cr, nr Rexford, MT 2021-07-07 2021-07-07 2
USGS 484918115173001 Boulder Creek near Rexford MT 1982-03-16 1983-02-15 12
USGS 485215115152501 Sullivan Creek near Rexford MT 1982-03-16 1983-02-15 12
USGS 485317115030901 36N27W14BA 01 1967-09-26 1967-09-26 1
USGS 485400115123001 Lake Koocanusa nr Mouth of Tobacco R nr Rexford 1983-07-28 1989-11-13 2301
USGS 485409115064401 36N27W08AB 01 1966-10-18 1966-10-18 1
USGS 485424115052302 36N27W04DC 02 1966-10-18 1966-10-18 1
USGS 485449115070301 36N27W05BD 01 1966-10-18 1966-10-18 1
USGS 485704115110301 Lake Koocanusa bl Young Cr, nr Rexford, MT 2021-07-07 2021-07-07 2
USGS 485755115082401 37N27W17CD 01 1967-09-26 1967-09-26 1
USGS 485805115172401 Young Cr bl South Fork nr Rexford MT 1982-04-15 1983-01-19 10
USGS 485808115110901 37N28W13CADB01 1977-06-21 1977-06-21 1
USGS 485944115095701 Lake Koocanusa nr Gateway CG, nr Rexford, MT 2021-07-07 2021-07-07 2
USGS 485952115100601 37N27W06CB 01 1967-09-26 1967-09-26 1
USGS 485956115095901 37N27W06CABA01 1977-06-22 1977-06-22 1
USGS 485957115100501 37N27W06CBAA01 1977-06-22 1977-06-22 1