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Water Quality Samples for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.

UPDATED July 25, 2022: The following stations are part of a short-term project and are scheduled to be discontinued on September 30, 2022 if alternative funding can not be secured.
  • 06192900 Dugout Creek near mouth, near Willsall, MT
  • 12355342 Hallowat Creek above Kletomus Creek, near Olney, MT
  • 12355347 Big Creek below Lookout Creek, near Apgar, MT

Please contact the Wyoming-Montana Science Center for more information.

To view additional data-quality attributes, output the results using these options: one result per row, expanded attributes.
Additional precautions are here.


USGS 12340500 Clark Fork above Missoula MT

Missoula County, Montana
Hydrologic Unit Code 17010204
Latitude  46°52'36.35", Longitude 113°55'55.63" NAD83
Drainage area 6,021  square miles
Gage datum 3,198.30 feet above NGVD29
Output formats
Parameter Group Period of Record table
Inventory of available water-quality data for printing
Inventory of water-quality data with retrieval
Tab-separated data, one result per row
Tab-separated data one sample per row with remark codes combined with values
Tab-separated data one sample per row with tab-delimiter for remark codes
Reselect output format
Sample
Datetime
Time
datum
 
Time
datum
reliability
code
 
Sample
Medium
Code
 
Agency
Collecting
Sample,
Code
 




Stream
width,
feet
(00004)



Temper-
ature,
water,
deg C
(00010)



Temper-
ature,
air,
deg C
(00020)




Weather
WMO
code
(00041)


Instan-
taneous
dis-
charge,
ft3/s
(00061)

Number
of
sam-
pling
points,
count
(00063)




Gage
height,
feet
(00065)
Specif-
ic
conduc-
tance,
wat unf
uS/cm @
25 degC
(00095)
Hydro-
gen
ion,
water,
unfltrd
calcd,
mg/L
(00191)

pH,
water,
unfltrd
field,
std
units
(00400)

pH,
water,
unfltrd
lab,
std
units
(00403)


Hard-
ness,
water,
mg/L as
CaCO3
(00900)



Calcium
water,
fltrd,
mg/L
(00915)


Magnes-
ium,
water,
fltrd,
mg/L
(00925)



Arsenic
water,
fltrd,
ug/L
(01000)



Arsenic
water,
unfltrd
ug/L
(01002)



Cadmium
water,
fltrd,
ug/L
(01025)



Cadmium
water,
unfltrd
ug/L
(01027)



Copper,
water,
fltrd,
ug/L
(01040)

Copper,
water,
unfltrd
recover
-able,
ug/L
(01042)

Iron,
water,
unfltrd
recover
-able,
ug/L
(01045)



Iron,
water,
fltrd,
ug/L
(01046)



Lead,
water,
fltrd,
ug/L
(01049)

Lead,
water,
unfltrd
recover
-able,
ug/L
(01051)
Manga-
nese,
water,
unfltrd
recover
-able,
ug/L
(01055)


Manga-
nese,
water,
fltrd,
ug/L
(01056)



Zinc,
water,
fltrd,
ug/L
(01090)

Zinc,
water,
unfltrd
recover
-able,
ug/L
(01092)


Gage
height
above
datum
meters
(30207)


Dis-
charge,
instan-
taneous
m3/s
(30209)


Transit
rate,
sampler
minimum
ft/s
(50014)



Transit
rate,
sampler
ft/s
(50015)


Transit
rate,
sampler
maximum
ft/s
(50016)



Site
visit
purpose
code
(50280)
Turbid-
ity,
IR LED
light,
det ang
90 deg,
FNU
(63680)
Suspnd.
sedimnt
sieve
diametr
percent
<0.0625
mm
(70331)




Sample
purpose
code
(71999)
Sample
loc-
ation,
distanc
down
stream,
feet
(72104)
Sample
loc-
ation,
distanc
up-
stream,
feet
(72105)


Sampler
nozzle
mater-
ial,
code
(72219)


Sampler
nozzle
di-
ameter,
code
(72220)
Sus-
pended
sedi-
ment
concen-
tration
mg/L
(80154)
Sus-
pended
sedi-
ment
dis-
charge,
ton/d
(80155)
Vel-
city
at
point
in
stream,
ft/s
(81904)



Sam-
pling
method,
code
(82398)




Sampler
type,
code
(84164)

Sample
split-
ter
type,
field,
code
(84171)

Bottle
or bag
sampler
mater-
ial,
code
(84182)
Specif.
conduc-
tance,
wat unf
lab,
uS/cm @
25 degC
(90095)


Sus-
pended
sedimnt
mass,
grams
(91157)
Suspnd
sedimnt
mass
between
63 um &
4 mm,
grams
(91165)


Type
of
repli-
cate,
code
(99105)
Type
of
sample
related
QA
data,
code
(99111)
1 mL
4.5 N
H2SO4
preser-
vative
lot
number
(99156)
2 mL
7.7 N
HNO3
preser-
vative
lot
number
(99159)
100
uS/cm
KCl
conduct
stand-
ard lot
number
(99161)
500
uS/cm
KCl
conduct
stand-
ard lot
number
(99163)
750
uS/cm
KCl
conduct
stand-
ard lot
number
(99164)
1000
uS/cm
KCl
conduct
stand-
ard lot
number
(99165)



pH 10
Buffer
lot
number
(99171)



pH 4
Buffer
lot
number
(99172)



pH 7
Buffer
lot
number
(99173)
Lot no.
first,
inor-
ganic
grade
water,
number
(99200)

0.45 um
capsule
filter
NWIS
lot
number
(99206)
NWIS
lot
number,
disk
filter,
0.45 um
number
(99218)
Julian
date,
in-
bottle
diges-
tion,
ddd
(99870)
2019-10-10 14:15
MDT
K
WS
USGS-WRD
200 5.0 5.0   1930 6 2.90 323 M  8.4 8.3 153 41.4 12.0 3.7 4.7 < 0.030 0.03 2.5 4.6 108 < 10.0 0.026 0.64 23.7 5.21 2.3 8 0.88 55   0.4   1001   92       3 5 4 21 2.40 10 3044 200 2 331 0.0109 0.0009       40295 30715 30656 30724   20356   20350   10062    
2020-03-26 11:05
MDT
K
WS
USGS-WRD
283 4.0 6.5   1690 5   310 0.00001 8.2 8.2 146 39.5 11.6 3.3 3.8 0.031 0.05 1.7 4.4 147 12.2 0.039 0.72 27.8 6.37 < 2.0 7   48 0.4   0.4 1001   88       3 5 7 32   20 3044 200 2 325 0.0332 0.0039       40299 30763 30713 30724   20356   20350   10062    
2020-04-15 10:00
MDT
K
WS
USGS-WRD
310 4.8 2.0   3090 5   257 0.00001 8.1 8.2 114 31.3 8.78 2.4 3.3 < 0.030 0.06 2.2 7.7 328 39.5 0.067 1.30 51.8 5.55 2.3 11   88 0.2   0.3 1001   87       3 5 19 159   20 3054 200 2 262 0.0833 0.0107   10   40299 30763 30713 30724   20356 20353 20350   10062    
2020-05-07 10:00
MDT
K
WS
USGS-WRD
255 7.2 8.5   9250 5   170 0.00001 7.9 8.2 77.0 21.2 5.87 2.0 2.8 < 0.030 0.06 1.6 9.6 507 33.5 0.084 1.59 49.7 3.88 < 2.0 15   262 0.5   0.6 1001   76       3 5 34 849   20 3044 200 2 174 0.1413 0.0346       40311 30763 30811 30724   20419   20350   10062    
2020-05-20 10:00
MDT
K
WS
USGS-WRD
290 9.6 12.0   14000 5   148 0.00001 7.8 8.0 67.0 18.2 5.23 2.1 6.2 < 0.030 0.28 2.8 43.0 2050 53.6 0.151 7.38 178 12.4 3.6 76   396 0.6   0.9 1001   56       3 3 191 7220   20 3054 200 2 155 0.8224 0.3585       40311 30763 30811 30831   20419   20350   10063   20201000
2020-06-03 09:55
MDT
K
WS
USGS-WRD
288 12.1 20.0   13000 5   165 0.00001 8.0 8.1 81.0 22.4 6.08 3.1 4.4 < 0.030 0.09 2.8 15.5 794 29.7 0.093 2.36 58.6 6.89 2.5 23   368 0.9   2.0 1001   72       3 5 50 1760   20 3054 200 2 167 0.2166 0.0597 30.00 30   40311 30763 30811 30831   20419 20353 20350   10063   20201000
2020-07-15 09:40
MDT
K
WS
USGS-WRD
207 14.4 19.0   4720 5   249 0.00001 8.1 8.3 115 31.7 8.80 4.2 4.9 0.031 0.05 2.9 7.2 176 < 10.0 0.052 0.78 24.2 9.83 2.4 9   134 0.3   0.6 1001   77       3 5 8 102   20 3044 200 2 250 0.0332 0.0075       40311 30763 30811 30831   20419   20350   10063   20201000
2020-08-19 09:55
MDT
K
WS
USGS-WRD
245 17.1 20.0   1570 16   298 0.00001 8.1 8.2 144 38.2 11.9 3.9 4.4 < 0.030 0.03 2.0 3.6 71.1 < 10.0 0.021 0.32 22.6 7.85 < 2.0 6   44   0.2   1001   82       3 5 4 17   10 3044 200 2 301 0.0180 0.0032       40311 30763 30811 30831   20419   20350   10063   20201000
2020-10-15 09:45
MDT
K
WS
USGS-WRD
285 6.9 6.0     8   328 0.00001 7.9 8.2 141 38.2 11.0 3.3 4.1 < 0.030 0.06 1.6 7.3 221 7.3 0.039 1.19 43.8 7.76 2.4 14       0.4   1001   85       3 5 12     10 3045 200 2 314 0.0413 0.0060       40322 30763 30811 30831   20419   20398   10063   20201000
2021-03-24 10:15
MDT
K
WS
USGS-WRD
267 4.0 6.5     4   304 0.00001 8.0 8.2 149 40.4 11.7 5.0 5.1 0.067 0.09 9.8 10.4 447 408 1.67 1.81 53.0 59.2 17.3 18     0.3   0.5 1001   88       3 5 21     20 3052 200 2 307 0.0640 0.0074       40327 30862 30870 30861   20451   20398   10063   20210000
2021-04-14 09:50
MDT
K
WS
USGS-WRD
268 3.9 3.5     4   241 0.00001 8.1 8.2 107 29.4 8.11 2.0 2.6 < 0.030 0.04 1.5 5.0 232 26.5 0.051 0.87 27.8 7.99 2.3 8     0.4   0.5 1001   81       3 5 11     20 3054 200 2 245 0.0353 0.0066   10   40327 30862 30870 30861   20480 20404 20422   10063   20211000
2021-05-06 10:30
MDT
K
WS
USGS-WRD
271 9.1 17.5     4   179 0.00001 8.1 8.2 80.0 22.2 6.00 1.8 2.6 < 0.030 0.06 1.6 7.4 482 29.5 0.061 1.38 48.2 4.79 < 2.0 13     0.6   0.9 1001   73       3 5 31     20 3044 200 2 181 0.1161 0.0315       40332 30914 30870 30922   20480   20529   10067   20211000
2021-05-19 10:00
MDT
K
WS
USGS-WRD
277 9.1 11.0     4   149 0.00002 7.8 8.2 69.1 18.8 5.37 1.6 2.4 < 0.030 0.06 1.5 8.1 596 29.0 0.056 1.47 53.0 4.15 < 2.0 12     0.7   0.9 1001   70       3 5 50     20 3054 200 2 153 0.1852 0.0548       40332 30862 30870 30922   20480   20529   10067   20211000
2021-06-09 10:00
MDT
K
WS
USGS-WRD
275 12.5 20.0     4   175 0.00001 8.1 8.2 77.5 21.0 6.07 2.1 2.9 < 0.030 0.05 1.9 8.5 417 18.1 0.052 1.34 37.1 4.96 < 2.0 12     0.5   0.9 1001   83       3 4 29     20 3054 200 2 177 0.0931 0.0162 30.00 30   40332 30914 30870 30922   20480 20468 20529   10067   20211000
2021-07-14 09:45
MDT
K
WS
USGS-WRD
263 17.3 21.5     4   260 0.00001 8.2 8.3 133 34.4 11.3 2.9 2.9 < 0.030 < 0.03 1.5 2.2 46.9 8.4 0.029 0.15 10.7 4.27 < 2.0 2       0.3   1001   85       3 5 2     10 3044 200 2 260 0.0084 0.0013       40332 30914 30870 30922   20480   20529       20211000
2021-08-18 09:45
MDT
K
WS
USGS-WRD
232 14.8 13.0 2   12   297 0.00001 8.1 8.3 152 39.7 12.9 3.2 3.6 < 0.030 < 0.03 1.4 2.8 98.1 8.4 0.024 0.30 22.2 6.98 < 2.0 6       0.4   1001     10.00 200.0   3 5       10 3044 200 2 300         40336 40332 30926 30870 30922 30857 20480 20468 20529 81818 10071   20211000
2021-10-14 08:15
MST
K
WS
USGS-WRD
242 5.4 3.0 2 1440 12 2.62 326 0.00001 8.2 8.3 167 44.7 13.4 3.4 3.9 < 0.030 0.04 1.2 4.1 112 7.1 0.033 0.62 25.0 4.41 < 2.0 7 0.80 41   0.6   1001   91   300.0   3 5 5 19   10 3044 200 2 343 0.0191 0.0018       40339 30926 30840 30939   20480       10071   20211000
2022-03-24 08:00
MDT
K
WS
USGS-WRD
255 8.6 4.0 1   10   288 0.00001 8.1                                           0.5   1001   86 10.00 450.0   3 5 12     10 3044 200 2   0.0419 0.0059   1   40354 30938 30940   30878 20564   20489   10071    
2022-04-20 08:45
MDT
K
WS
USGS-WRD
259 5.6 3.5 2   4   254 0.00001 8.1 8.2 132 35.2 10.6 2.3 2.6 < 0.030 < 0.03 1.3 3.2 117 11.8 0.036 0.43 16.9 6.14 < 2.0 5     0.2   0.5 1001   89 10.00   10.0 3 5 3     20 3052 200 2 265 0.0093 0.0010   10   40354 30938 30940   30878 20564 20468 20489 81822 10071   20221000
2022-05-05 07:45
MDT
K
WS
USGS-WRD
258 10.0 9.5 1   5   194 0.00001 8.0                                         0.3   0.8 1001   89 10.00   15.0 3 5 53     20 3052 200 2   0.1877 0.0198       40354 30938 30940   30929 20564   20489   10075    
2022-05-26 08:15
MDT
K
WS
USGS-WRD
240 10.7 13.0 1   5   178 0.00001 8.1                                         0.6   1.0 1001   82 10.00   10.0 3 5 11     20 3044 200 2   0.0388 0.0071       40357 30978 30940   30929 20564   20489   10075    
2022-06-09 07:30
MDT
K
WS
USGS-WRD
270 11.2 12.5 1   5   166 0.00001 7.9                                         0.8   1.4 1001     10.00   20.0 3 5       20 3044 200 2       30.00 30   40357 30978 30940   30929 20564   20489   10075    
2022-07-14 08:50
MDT
K
WS
USGS-WRD
250   18.0     5   17 M  246                                         0.4   0.5 1001 8.0   10.00   10.0 3 5       10 3044 200 2             40357 30978 30940   30929 20582   20489     10074  

Water Quality Remark Code Description
< Less than
M Presence verified but not quantified