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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 12324400 Clark Fork ab Little Blackfoot R nr Garrison MT

Powell County, Montana
Hydrologic Unit Code 17010201
Latitude  46°30'39.28", Longitude 112°47'22.87" NAD83
Drainage area 1,130  square miles
Gage datum 4,350 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)



Dis-
charge,
ft3/s
(00060)
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,
m3/s
(30208)

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)		 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)		 50
uS/cm
KCl
conduct
stand-
ard lot
number
(99160)		 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)
2018-10-18 09:15
 MDT
 K
 WS
 USGS-WRD
 130 4.0 0.0 370 26 3.54 447 0.00001 8.3 8.4 200 57.5 13.7 10.4 12.4 0.079 0.15 6.3 20.0 273 < 10.0 0.051 2.04 64.2 17.4 7.2 23 1.08 10   0.4   1001 50 10.00 3 5 14 2.45 10 3044 200 2 456 0.0176 0.0088       40267   30576 30645 30635   20291   20280   10055
2018-11-27 14:00
 MST
 K
 WS
 USGS-WRD
 71.0 0.2 4.0 358 11 3.69 452 M  8.3 8.2 207 59.8 14.0 7.5 14.1 < 0.150 0.32 4.4 56.4 1050 < 10.0 < 0.100 7.00 146 22.1 < 10.0 62 1.12 10   0.7   1001 70 10.00 3 5 43   10 3044 200 2 452 0.0502 0.0149   1   40267     30645     20318   20350   10055
2018-11-27 14:30
 MST
 K
 WS
 USGS-WRD
   0.2 4.0 358   3.69 452                                         1.12 10       1001 70 10.00     42   10 3044       0.0466 0.0139                            
2019-03-28 10:00
 MDT
 K
 WS
 USGS-WRD
   1.6 3.0 807 1 4.67 418 0.00001 7.9 8.1 182 52.2 12.6 16.7 45.3 0.187 0.94 37.7 244 4330 84.7 0.402 27.3 350 60.1 25.5 198 1.42 23   0.5   1001 71 10.00 3 5 166 3.50 70 3044 200 2 435 0.1206 0.0344 20.00 30 40280 40282   30614 30656     20356   20350   10055
2019-04-24 08:05
 MDT
 K
 WS
 USGS-WRD
 54.0 9.0 8.0 872 4 4.59 393 0.00001 8.0 8.3 169 48.6 11.6 14.8 28.8 0.073 0.44 9.5 82.4 1770 39.9 0.223 10.4 172 13.9 7.2 77 1.40 25 0.5   0.8 1001 54 10.00 3 5 87 5.00 20 3052 200 2 401 0.2759 0.1266     40280 40282   30614 30656 30635   20356 20316 20350   10055
2019-05-08 09:00
 MDT
 K
 WS
 USGS-WRD
 52.0 6.5 10.5 671 5 4.14 378 0.00001 8.2 8.3 169 49.1 11.3 12.5 20.7 0.075 0.20 10.2 52.7 810 66.9 0.472 5.60 121 23.0 8.1 42 1.26 19 0.2   0.6 1001 63 10.00 3 5 36 2.80 40 3052 200 2 383 0.1153 0.0430     40280 40282   30614   30635   20356   20350 81805 10055
2019-05-17 14:15
 MDT
 K
 WS
 USGS-WRD
 100 9.0 7.0 995 4 4.97 276 0.00001 8.0 8.0 116 34.9 6.95 14.5 40.1 0.071 0.60 13.4 151 2740 39.4 0.281 22.8 252 16.2 7.6 124 1.51 28       1001 57 10.00 3 5 139   40 3044 200 2 279 0.4201 0.1796       40282 30540       30651 20318   20320   10055
2019-05-17 14:45
 MDT
 K
 WS
 USGS-WRD
   9.0   1140   5.14 276 0.00001 8.0                                     1.57 32       1001 57 10.00     142             0.4530 0.1969                            
2019-05-23 09:30
 MDT
 K
 WS
 USGS-WRD
 54.0 8.0 13.0 948 4 4.87 338 0.00001 8.0 8.2 126 37.7 7.83 13.4 29.9 0.075 0.36 12.1 102 1560 35.5 0.265 12.7 145 12.6 7.9 76 1.48 27 0.6   0.8 1001 54 10.00 3 5 74 3.20 20 3052 200 2 345 0.2213 0.1020       40282   30715 30656 30635   20356 20316 20350   10055
2019-06-04 15:45
 MDT
 K
 WS
 USGS-WRD
 68.0 16.0 22.0 1210 4 5.31 274 0.00001 8.2 8.1 118 34.9 7.40 16.3 33.1 0.084 0.37 14.4 107 1780 29.4 0.245 13.7 133 12.5 5.9 79 1.62 34 0.7   0.8 1001 54 10.00 3 5 82 3.70 20 3052 200 2 275 0.2702 0.1236       40282   30715 30656 30635   20356 20316 20350   10057
2019-07-16 16:40
 MDT
 K
 WS
 USGS-WRD
 72.0 20.5 23.0 328 10 3.52 389 M  8.6 8.4 166 48.1 11.3 17.8 21.1 0.061 0.13 8.2 22.3 263 10.7 0.109 1.84 66.8 21.7 2.9 16 1.07 9.3   0.7   1001 85 10.00 3 5 8 2.20 10 3044 200 2 390 0.0095 0.0014       40282   30715 30656 30724   20356 20316 20350   10057
2019-08-20 14:40
 MDT
 K
 WS
 USGS-WRD
 60.0 20.0 33.0 159 9 2.85 448 M  8.6 8.5 193 56.1 12.8 16.9 19.9 0.050 0.10 7.3 18.6 188 10.8 0.123 1.46 78.3 23.2 2.6 13 0.87 4.5       1001 62 10.00 3 5 10 1.70 10 3044 200 2 454 0.0118 0.0045       40295   30715 30656 30724   20356 20316 20350   10062
2019-09-09 11:35
 MDT
 K
 WS
 USGS-WRD
   13.9 15.0 292   3.38 467 0.00001 8.1 8.2 212 60.9 14.6 17.0 26.8 0.053 0.65 7.7 127 1940 15.1 0.168 15.9 465 29.7 4.1 119 1.03 8.3       1001 77 10.00     91   10 3044     474 0.3371 0.0761       40282                   10055
2019-09-09 12:05
 MDT
 K
 WS
 USGS-WRD
   13.9   290   3.36                                           1.02 8.2       1001 77 10.00     101             0.3829 0.0867                            
2019-09-10 11:15
 MDT
 K
 WS
 USGS-WRD
   12.5 18.0 287   3.35 421 0.00001 8.2 8.3 235 66.6 16.6 21.0 25.8 0.074 0.34 14.9 64.6 953 87.0 0.708 7.37 218 26.8 9.4 58 1.02 8.1       1001 78 10.00     40   10 3044     511 0.0911 0.0200       40282                   10055
2019-09-10 11:45
 MDT
 K
 WS
 USGS-WRD
       287   3.35                                           1.02 8.1       1001 78 10.00     41             0.0992 0.0219                            
2019-09-19 08:29
 MDT
 K
 WS
 USGS-WRD
   10.6   221   3.10       8.3 212 60.5 14.8 14.3 15.5 0.040 0.13 8.8 23.5 309 10.5 0.091 2.13 72.9 1.32 4.7 20 0.94 6.3       1001 41 10.00     43   50     2 474 0.0164 0.0096   1   40295                    
2019-09-24 16:29
 MDT
 K
 WS
 USGS-WRD
   14.7   241   3.17       8.3 210 60.3 14.6 14.0 18.4 0.052 0.17 8.1 22.5 1020 14.5 0.134 2.88 159 3.92 3.8 26 0.97 6.8       1001 13 10.00     64   50     2 467 0.0246 0.0215   1   40295                    

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