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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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

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)

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)

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


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,
ton/d
(70302)
Dis-
solved
solids,
water,
tons/
acre-ft
(70303)		 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
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 7
Buffer
lot
number
(99173)
0.45 um
capsule
filter
NWIS
lot
number
(99206)
2016-10-17 13:00
 MDT
 K
 WS
 USGS-WRD
 13.0 7.0 8.0   6.8 26 4.20 262 0.00001 8.1 8.1 1.9 2.85 118 6 34.9 7.58 10.6 0.42 16 1.58 2.09 21.0 0.36 24.3 18.3 20.4 0.090 0.05 2.3 4.2 247 42.9 0.229 1.12 29.5 20.8 3.8 5 113 1.28   0.19 0.1 1001 E 4.1 170 3.10 0.23 98 3 5 5 0.09 0.80 10 3045 50 3 265 40 40200 40218 30452 30458   20157 20184 10040
2017-03-20 14:10
 MDT
 K
 WS
 USGS-WRD
 16.0 4.0 7.0 16   32 4.07 212 0.00001 7.9 7.9 1.8 5.75 86.2 5 25.9 5.24 9.84 0.46 19 1.88 2.17 23.3 0.22 24.2 23.3 28.0 < 0.030 0.12 5.2 10.0 626 130 0.328 2.20 75.6 60.2 4.0 11 81.3 1.24 0.45   0.1 1001 E 11 142   0.19 98 3 5 16   1.20 10 3045 50 3 210   40182 40218       20237 20184 10036
2017-04-17 12:30
 MDT
 K
 WS
 USGS-WRD
 15.0 5.5 5.0 14   30 4.02 181 0.00001 7.9 7.9 1.7 4.95 72.3 1 21.8 4.30 8.59 0.44 20 1.12 1.35 16.8 0.19 25.1 17.6 20.7 < 0.030 0.11 3.8 9.0 500 92.8 0.246 2.32 50.9 33.3 3.0 11 70.9 1.23 0.40   0.1 1001 E 8.1 122   0.17 93 3 5 13   1.20 10 3045 50 3 179   40221 40231       20237 20184 10036
2017-05-08 12:35
 MDT
 K
 WS
 USGS-WRD
 15.0 7.0 12.0 27   30 4.36 128 0.00002 7.8 7.7 1.6 7.79 50.4   15.6 2.75 6.42 0.39 21 1.06 0.81 10.3 0.12 24.4 21.8 24.4 < 0.030 0.13 6.6 12.5 542 97.7 0.350 2.11 50.9 31.7 4.8 12 51.6 1.33 0.76   0.2 1001 E 10 93   0.13 91 3 5 19   1.60 10 3045 50 3 126   40236 40231   30522   20237 20184 10036
2017-05-22 13:40
 MDT
 K
 WS
 USGS-WRD
 15.0 12.0 19.5 28   30 4.38 153 0.00001 8.0 7.8 1.3 7.51 60.5   18.6 3.43 6.92 0.39 20 1.03 0.97 11.4 0.17 24.9 31.1 32.5 0.032 0.09 8.8 13.0 340 89.0 0.332 1.52 32.7 21.6 4.1 10 63.1 1.34 0.79   0.2 1001 E 6.7 105   0.14 94 3 5 11   2.00 10 3045 50 3 150   40236 40224 30512 30522   20237 20184 10036
2017-06-12 12:45
 MDT
 K
 WS
 USGS-WRD
 15.0 11.0 16.5 21   30 4.30 254 0.00001 8.0 7.9 2.2 7.72 111   32.5 7.31 9.24 0.38 15 1.50 1.17 13.0 0.43 26.1 72.8 72.4 0.035 0.09 6.3 8.3 258 62.9 0.215 1.13 40.5 30.2 4.4 8 116 1.31 0.60   0.2 1001 E 4.1 161   0.22 96 3 5 5   1.50 10 3045 50 3 250   40236 40224 30512 30522   20237 20184 10044
2017-07-10 12:25
 MDT
 K
 WS
 USGS-WRD
 12.0 13.0 23.0 11   24 4.18 275 0.00001 8.0 8.1 2.6 5.27 126   37.0 8.04 7.96 0.31 12 1.23 1.47 13.3 0.45 23.6 67.2 67.9 < 0.030 0.05 3.6 5.6 172 46.9 0.203 0.84 23.6 19.4 3.4 6 128 1.27 0.31   0.2 1001 E 2.6 170   0.23 91 3 5 5   1.30 10 3045 50 3 272   40236 40237 30529 30522   20237 20184 10044
2017-08-14 12:40
 MDT
 K
 WS
 USGS-WRD
 14.0 14.0 18.5 7.1   14 4.08 259 0.00001 8.2 8.2 1.5 2.90 113 0.0 32.7 7.57 8.73 0.36 14 1.36 1.88 18.0 0.41 21.8 15.9 17.8 < 0.030 0.05 2.3 4.4 202 27.0 0.185 1.06 15.6 10.1 < 2.0 4 112 1.24 0.20   0.3 1001 E 2.9 160   0.22 98     5   0.89 10 3045 50 3 254   40236 40237 30529 30522 30541 20237 20210 10044

Water Quality Remark Code Description
< Less than
E Estimated