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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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)

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)

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)

Type
of
repli-
cate,
code
(99105)		 Type
of
sample
related
QA
data,
code
(99111)		 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)


pH 10
Buffer
lot
number
(99171)


pH 7
Buffer
lot
number
(99173)
0.45 um
capsule
filter
NWIS
lot
number
(99206)
2016-10-19 09:35
 MDT
 K
 WS
 USGS-WRD
 110 7.0 7.0 820 16 4.04 370 0.00001 8.1 8.2 171 47.9 12.4 5.7 6.3 < 0.030 0.05 1.8 6.2 191 4.7 0.030 0.89 30.3 3.36 2.3 12 1.23 23   0.4   1001 84 3 5 10 22 2.80 10 3044 200 2 373     40218 30452 30458 20157 20184 10040
2017-03-22 10:10
 MDT
 K
 WS
 USGS-WRD
 210 5.0 7.5 2110 4 5.16 251 0.00001 8.0 7.9 109 30.8 7.71 4.2 7.2 < 0.030 0.18 3.3 25.3 799 72.6 0.188 4.30 85.6 7.96 4.1 33 1.57 60 0.6   1.0 1001 70 3 5 40 228 4.40 20 3054 200 2 248     40218     20237 20184 10036
2017-04-19 12:30
 MDT
 K
 WS
 USGS-WRD
 216 9.0 12.5 1670 4 4.79 258 M  8.4 8.0 111 31.2 7.99 4.2 5.4 < 0.030 0.08 2.7 11.4 306 23.4 0.072 1.68 37.3 6.09 < 2.0 14 1.46 47 0.3   0.6 1001 77 3 4 16 72 4.00 20 3054 200 2 255     40231     20237 20184 10036
2017-05-10 09:55
 MDT
 K
 WS
 USGS-WRD
 235 9.0 14.0 3840 4 6.32 144 0.00002 7.8 7.9 63.0 17.8 4.50 3.4 5.9 < 0.030 0.15 3.1 22.9 820 56.6 0.172 3.83 81.5 7.63 3.4 34 1.93 109 0.5   1.0 1001 50 3 4 67 695 5.50 20 3054 200 2 145     40231   30522 20237 20184 10036
2017-05-24 09:45
 MDT
 K
 WS
 USGS-WRD
 235 11.5 13.5 3860 4 6.30 174 0.00001 8.0 7.9 73.1 21.0 5.04 4.4 7.0 < 0.030 0.15 3.7 22.4 713 47.2 0.174 3.82 72.6 8.02 3.3 32 1.92 109 0.5   0.9 1001 53 3 4 56 584 6.40 20 3054 200 2 173 30.00 30 40224 30512 30522 20237 20184 10036
2017-06-14 11:20
 MDT
 K
 WS
 USGS-WRD
 240 9.0 13.0 8670 4 8.72 170 0.00001 7.8 7.7 71.4 20.3 5.00 10.2 37.4 0.057 1.71 10.9 244 10700 203 0.977 50.5 871 48.3 11.3 430 2.66 246 0.4   0.7 1001 54 3 3 692 16200   20 3054 200 2 182     40224 30512 30522 20237 20184 10044
2017-07-12 10:50
 MDT
 K
 WS
 USGS-WRD
 217 15.5 26.0 1400 4 4.40 273 0.00001 8.3 8.2 124 35.6 8.51 6.6 6.8 < 0.030 0.05 3.4 6.5 128 11.0 0.051 0.52 25.2 8.08 2.1 8 1.34 40 0.4   0.9 1001 79 3 5 6 23 3.10 20 3054 200 2 272     40237 30529 30522 20237 20221 10044
2017-08-16 09:45
 MDT
 K
 WS
 USGS-WRD
 100 13.0 15.0 540 17 3.48 327 0.00001 8.2 8.2 149 41.2 11.3 5.5 5.4 < 0.030 0.04 2.3 3.7 56.9 < 10.0 0.034 0.22 14.8 4.59 2.0 5 1.06 15   0.3   1001 77 3 5 4 5.8 2.20 10 3044 200 2 324   40 40237 30529 30522 20237 20210 10044

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