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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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


USGS 12323720 Willow Creek at Opportunity, MT

Deer Lodge County, Montana
Hydrologic Unit Code 17010201
Latitude  46°06'25.79", Longitude 112°48'38.20" NAD83
Drainage area 28.6  square miles
Gage datum 4,930 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)



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)

Carbon
dioxide
water,
unfltrd
mg/L
(00405)

Organic
carbon,
water,
fltrd,
mg/L
(00681)

Hard-
ness,
water,
mg/L as
CaCO3
(00900)		 Noncarb
hard-
ness,
wat flt
lab,
mg/L as
CaCO3
(00905)


Calcium
water,
fltrd,
mg/L
(00915)

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


Sodium,
water,
fltrd,
mg/L
(00930)


Sodium
adsorp-
tion
ratio
(00931)
Sodium
frac-
tion
of
cations
percent
(00932)

Potas-
sium,
water,
fltrd,
mg/L
(00935)

Chlor-
ide,
water,
fltrd,
mg/L
(00940)


Sulfate
water,
fltrd,
mg/L
(00945)

Fluor-
ide,
water,
fltrd,
mg/L
(00950)

Silica,
water,
fltrd,
mg/L as
SiO2
(00955)


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)		 Alka-
linity,
wat flt
fxd end
lab,
mg/L as
CaCO3
(29801)

Gage
height
above
datum
meters
(30207)



Dis-
charge,
m3/s
(30208)


Transit
rate,
sampler
ft/s
(50015)


Site
visit
purpose
code
(50280)		 Turbdty
white
light,
det ang
90+/-30
corrctd
NTRU
(63676)		 Dis-
solved
solids,
sum of
consti-
tuents,
mg/L
(70301)
Dis-
solved
solids,
water,
tons/
acre-ft
(70303)		 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)		 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)
0.45 um
capsule
filter
NWIS
lot
number
(99206)
2018-10-15 13:50
 MDT
 K
 WS
 USGS-WRD
 8.00 7.0 8.0 9.9 8 4.52 268 0.00001 8.3 8.3 1.1 2.50 120 9 35.4 7.61 10.4 0.41 16 1.49 2.97 24.9 0.35 24.0 15.4 15.7 0.033 < 0.03 2.3 3.2 76.6 24.8 0.123 0.46 6.4 5.95 2.1 3 111 1.38 0.28   1001 < 2.0 174 0.24 90 10.00 3 5 1 0.78 70 3070 200 2 274 0.0010 0.0001 40258 40267 30576 30645 30635 20291 20316 20280 10055
2019-03-25 14:45
 MDT
 K
 WS
 USGS-WRD
 12.0 8.5 7.0 9.0 6 3.92 320 0.00001 8.0 8.3 2.5 4.02 144 16 40.9 10.3 12.7 0.46 16 3.36 4.86 31.0 0.41 22.0 19.1 20.5 0.051 0.05 3.7 5.1 128 60.4 0.130 0.53 57.8 46.8 5.0 7 128 1.19 0.25 0.1 1001 < 2.0 203 0.28 78 10.00 3 5 2 0.50 10 3044 200 2 322 0.0023 0.0005 40280 40282 30614 30656 30635 20356   20350 10055
2019-04-22 13:50
 MDT
 K
 WS
 USGS-WRD
 16.0 8.0 17.0 31 16 4.39 342 0.00001 7.9 8.3 2.9 10.1 131 24 38.0 8.72 20.4 0.77 25 3.12 7.24 54.4 0.37 26.5 67.3 76.8 0.085 0.13 13.0 20.5 599 200 0.493 1.60 90.0 63.3 8.0 13 107 1.34 0.88 0.2 1001 E 7.5 223 0.30 94 10.00 3 5 12 1.80 10 3044 10 2 347 0.0181 0.0011 40280 40282 30614 30656 30635 20356 20316 20350 10055
2019-05-06 13:15
 MDT
 K
 WS
 USGS-WRD
 16.0 8.5 20.0 26 14 4.26 206 0.00001 8.0 8.2 1.4 6.44 86.4 6 26.3 5.04 10.1 0.47 20 1.59 2.39 21.8 0.23 26.1 34.1 39.6 0.048 0.06 6.0 9.3 308 109 0.250 0.81 34.9 28.2 3.5 6 80.1 1.30 0.75 0.1 1001 E 5.0 142 0.19 88 10.00 3 5 6 1.44 10 3044 10 2 210 0.0067 0.0008 40280 40282 30715   30635   20316 20350 10055
2019-05-20 15:25
 MDT
 K
 WS
 USGS-WRD
 15.0 5.0 8.0 63 13 4.81 206 0.00002 7.8 8.1 2.4 8.54 75.0   22.8 4.40 10.9 0.55 24 1.71 2.73 23.5 0.21 24.4 50.8 56.4 0.040 0.07 8.4 11.8 264 109 0.243 0.93 22.3 14.2 4.9 9 75.6 1.47 1.8 0.3 1001 E 3.2 136 0.19 85 10.00 3 5 9 4.70 10 3044 10 2 209 0.0103 0.0015 40280 40282 30614 30656 30635 20356 20316 20350 10055
2019-06-03 11:50
 MDT
 K
 WS
 USGS-WRD
 15.0 14.0 22.0 61 13 4.76 213 0.00001 7.9 8.1 2.2 8.70 84.5   25.4 5.12 9.85 0.47 20 1.73 1.79 15.4 0.30 25.7 80.9 87.4 0.062 0.09 8.0 12.1 255 94.9 0.242 1.04 37.5 25.6 5.6 10 91.3 1.45 1.7 0.5 1001 E 2.8 140 0.19 71 10.00 3 5 7 2.10 10 3044 10 2 214 0.0083 0.0024 40280 40282 30715 30656 30635 20356 20316 20350 10057
2019-07-15 13:05
 MDT
 K
 WS
 USGS-WRD
 21.0 15.2 23.0 16 10 4.11 276 0.00001 8.0 8.2 2.6 3.48 129 4 37.7 8.41 9.38 0.36 14 1.40 2.31 18.0 0.43 23.5 44.8 43.6 < 0.030 0.04 3.0 3.8 106 29.6 0.067 0.37 18.2 12.4 2.1 3 125 1.25 0.46 0.1 1001 < 2.0 176 0.24 95 10.00 3 5 2 1.00 10 3044 10 2 278 0.0019 0.0001 40280 40282 30715 30656 30724 20356 20316 20350 10057
2019-08-19 12:00
 MDT
 K
 WS
 USGS-WRD
 15.0 13.5 29.0 6.8 1 4.09 290 0.00001 8.2 8.3 1.7 2.02 127 0.0 37.0 8.27 9.34 0.36 14 1.33 3.07 23.9 0.44 20.0 20.2 20.6 < 0.030 < 0.03 1.5 2.1 70.1 17.2 0.045 0.25 12.1 7.52 < 2.0 < 2 126 1.25 0.19   1001 < 2.0 179 0.24 92 10.00     1   70 3070 10 2 293 0.0013 0.0001 40286 40282 30715 30656 30724 20356 20316 20350 10062

Water Quality Remark Code Description
< Less than
E Estimated