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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.


! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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.
To view additional data-quality attributes, output the results using these options: one result per row, expanded attributes.
Additional precautions are here.

USGS 12334550 Clark Fork at Turah Bridge nr Bonner MT

Missoula County, Montana
Hydrologic Unit Code 17010202
Latitude  46°49'33.28", Longitude 113°48'50.51" NAD83
Drainage area 3,657  square miles
Gage datum 3,320 feet above NAVD88
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)		 Suspnd.
sedimnt
sieve
diametr
percent
<0.0625
mm
(70331)



Sample
purpose
code
(71999)

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)


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)
2018-10-17 12:35
 MDT
 K
 WS
 USGS-WRD
 120 6.0 11.0   1180 10 3.02 362 M  8.4 8.3 171 47.6 12.6 6.3 6.8 0.036 0.07 2.8 7.9 130 < 10.0 0.035 1.00 31.8 5.80 2.9 10 0.92 33   0.7   1001 86 40.00 3 5 6 19 3.10 10 3044 200 2 369 0.0063 0.0009       40267 30576 30645 30635 20291   20280   10055
2019-03-27 13:30
 MDT
 K
 WS
 USGS-WRD
 216 4.5 5.0 50 2280 5 3.77 305 0.00001 8.0 8.2 138 38.8 10.0 10.1 31.6 0.077 0.91 19.1 194 4750 59.2 0.276 26.1 472 19.7 12.7 208 1.15 65       1001 86 40.00 3 5 223 1380 4.20 20 3054 200 2 321 0.6855 0.0934     40280 40282 30614 30656   20356   20350   10055
2019-04-24 13:45
 MDT
 K
 WS
 USGS-WRD
 194 10.0 16.0   5700 5 5.96 210 0.00001 8.0 8.2 92.9 26.2 6.68 5.3 10.5 0.047 0.28 5.7 37.4 1680 114 0.299 6.51 153 11.6 5.6 64 1.82 161 0.6   2.1 1001 54 40.00 3 4 95 1460 6.00 20 3052 200 2 214 0.3760 0.1721     40280 40282 30614 30656 30635 20356 20316 20350   10055
2019-05-08 14:45
 MDT
 K
 WS
 USGS-WRD
 225 11.0 17.0   4140 5 5.04 213 0.00001 8.2 8.2 96.4 27.5 6.73 4.4 7.6 0.038 0.12 3.7 20.3 684 36.9 0.120 2.96 64.9 7.25 3.7 30 1.54 117 0.3   1.6 1001 55 40.00 3 5 47 526 4.70 40 3052 200 2 217 0.1690 0.0762     40280 40282 30614   30635 20356   20350 81805 10055
2019-05-22 12:45
 MDT
 K
 WS
 USGS-WRD
 225 8.0 14.0 10 5340 5 5.76 184 0.00001 8.0 8.1 78.8 22.7 5.39 5.3 9.4 0.048 0.21 6.0 34.3 1040 48.8 0.177 4.86 94.1 9.45 4.9 49 1.76 151 0.5   1.9 1001 45 40.00 3 4 84 1210 6.00 40 3052 200 2 189 0.3150 0.1724 30.00 30   40282 30614 30656 30635 20356 20316 20350   10055
2019-06-05 13:15
 MDT
 K
 WS
 USGS-WRD
 190 14.0 23.0   5070 5 5.66 179 0.00001 8.1 8.1 78.8 22.7 5.39 5.8 9.1 0.039 0.14 5.7 24.0 677 33.5 0.131 3.42 66.6 8.94 3.4 31 1.73 144 0.4   1.7 1001 60 40.00 3 4 43 589 6.00 20 3052 200 2 180 0.1782 0.0705       40282 30715 30656 30635 20356 20316 20350   10057
2019-07-17 11:55
 MDT
 K
 WS
 USGS-WRD
 163 16.9 22.0   1690 4 3.34 309 M  8.3 8.3 139 38.6 10.2 7.8 8.7 < 0.030 0.05 3.3 7.0 143 < 10.0 0.057 0.75 30.2 5.44 2.1 8 1.02 48 0.6   0.8 1001 83   3 5 6 27 4.00 20 3052 200 2 311 0.0174 0.0029       40282 30715 30656 30724 20356 20316 20350   10057
2019-08-21 11:15
 MDT
 K
 WS
 USGS-WRD
 130 18.0 27.0   747 9 2.36 348 M  8.4 8.3 163 45.4 12.1 7.4 7.9 < 0.030 0.04 3.0 5.6 76.8 < 10.0 0.032 0.45 22.5 5.67 2.1 6 0.72 21   0.6   1001 68   3 5 6 12 2.60 10 3044 200 2 353 0.0088 0.0028   40   40295 30715 30656 30724 20356 20316 20350   10062

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