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Water Quality Samples for Wyoming

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Questions or concerns about USGS data and data products in Wyoming and Montana 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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 06645000 NORTH PLATTE RIVER BELOW CASPER, WY

Natrona County, Wyoming
Hydrologic Unit Code 10180007
Latitude  42°51'32", Longitude 106°12'41" NAD83
Drainage area 12,574  square miles
Contributing drainage area 11,743  square miles
Gage datum 5,070 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 


Temper-
ature,
water,
deg C
(00010)


Temper-
ature,
air,
deg C
(00020)

Baro-
metric
pres-
sure,
mm Hg
(00025)

Instan-
taneous
dis-
charge,
ft3/s
(00061)		 Specif-
ic
conduc-
tance,
wat unf
uS/cm @
25 degC
(00095)		 Hydro-
gen
ion,
water,
unfltrd
calcd,
mg/L
(00191)


Dis-
solved
oxygen,
mg/L
(00300)
Dis-
solved
oxygen,
percent
of sat-
uration
(00301)
pH,
water,
unfltrd
field,
std
units
(00400)
pH,
water,
unfltrd
lab,
std
units
(00403)

Carbon
dioxide
water,
unfltrd
mg/L
(00405)
Sus-
pended
solids,
water,
unfltrd
mg/L
(00530)

Ammonia
water,
fltrd,
mg/L
as N
(00608)

Nitrite
water,
fltrd,
mg/L
as N
(00613)

Nitrate
water,
fltrd,
mg/L
as N
(00618)		 Nitrate
+
nitrite
water,
fltrd,
mg/L
as N
(00631)
Ortho-
phos-
phate,
water,
fltrd,
mg/L
(00660)		 Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)

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)


Barium,
water,
fltrd,
ug/L
(01005)

Beryll-
ium,
water,
fltrd,
ug/L
(01010)


Boron,
water,
fltrd,
ug/L
(01020)


Cadmium
water,
fltrd,
ug/L
(01025)

Chrom-
ium,
water,
fltrd,
ug/L
(01030)


Cobalt
water,
fltrd,
ug/L
(01035)


Copper,
water,
fltrd,
ug/L
(01040)


Iron,
water,
fltrd,
ug/L
(01046)


Lead,
water,
fltrd,
ug/L
(01049)

Manga-
nese,
water,
fltrd,
ug/L
(01056)

Molyb-
denum,
water,
fltrd,
ug/L
(01060)


Nickel,
water,
fltrd,
ug/L
(01065)


Silver,
water,
fltrd,
ug/L
(01075)

Stron-
tium,
water,
fltrd,
ug/L
(01080)

Vana-
dium,
water,
fltrd,
ug/L
(01085)


Zinc,
water,
fltrd,
ug/L
(01090)

Anti-
mony,
water,
fltrd,
ug/L
(01095)

Alum-
inum,
water,
fltrd,
ug/L
(01106)


Lithium
water,
fltrd,
ug/L
(01130)

Selen-
ium,
water,
fltrd,
ug/L
(01145)

Uranium
natural
water,
fltrd,
ug/L
(22703)		 Alka-
linity,
wat flt
fxd end
lab,
mg/L as
CaCO3
(29801)

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


Ammonia
water,
fltrd,
mg/L
(71846)


Nitrate
water,
fltrd,
mg/L
(71851)

Nitrite
water,
fltrd,
mg/L
as NO2
(71856)


Mercury
water,
fltrd,
ug/L
(71890)



Sample
purpose
code
(71999)


Sam-
pling
method,
code
(82398)



Sampler
type,
code
(84164)		 Specif.
conduc-
tance,
wat unf
lab,
uS/cm @
25 degC
(90095)
E coli,
modif.
m-TEC,
water,
cfu/
100 mL
(90902)		 Type
of
sample
related
QA
data,
code
(99111)
2018-10-16 11:10
 MDT
 K
 WS
 USGS-WRD
 5.2 9.0 640 555 779 M  12.9 121 8.5 8.5 0.9 < 15 < 0.01 0.003 0.352 0.355 0.080 0.026 286 132 67.3 28.6 63.4 1.63 32 3.62 17.8 228 0.34 4.22 1.9 48.8 < 0.010 89 < 0.030 < 0.50 0.137 0.52 22.8 0.036 16.7 2.37 1.0 < 1.00 611 1.0 < 2.0 0.128 21.7 35.1 3.9 7.52 155 16 508 761 0.69 < 0.013 1.56 0.009 < 0.005 10.00 10   790   1
2018-11-15 12:55
 MST
 K
 WS
 USGS-WRD
 4.9 11.0 635 504 722 M  18.1 170 8.5 8.7 1.0 < 15 < 0.01 0.003 0.217 0.221 0.063 0.020 269 110 65.9 25.3 56.6 1.50 31 3.39 15.8 195 0.33 4.22 1.7 42.1 < 0.030 82 < 0.030 < 0.50 0.257 0.46 < 10.0 < 0.020 12.1 2.32 0.95 < 1.00 584 1.2 < 2.0 0.153 < 3.0 35.5 3.7 8.57 160 14 464 631 0.63 < 0.013 0.962 0.011 < 0.005 10.00 10 3044 722   1
2018-12-11 09:10
 MST
 K
 WS
 USGS-WRD
 0.0 3.0 633 564 722 0.00001 14.4 119 8.1 8.3 2.4 < 15 < 0.01 0.026 0.381 0.408 0.081 0.027 258 104 63.8 23.7 52.9 1.43 31 3.39 17.7 201 0.38 6.86 1.6 44.2 < 0.030 81 < 0.090 < 1.5 0.151 < 1.2 < 10.0 < 0.060 24.0 2.44 0.86 < 3.00 570 1.8 < 6.0 < 0.180 < 9 31.7 3.4 7.39 154 16 464 707 0.63 < 0.013 1.69 0.087 < 0.005 10.00 10 3044 724   1
2019-01-31 10:40
 MST
 K
 WS
 USGS-WRD
 0.1 7.5 630   745 0.00001 11.5 96 8.2 8.3 2.0 < 15 0.03 0.008 0.389 0.397 0.073 0.024 280 119 68.8 26.1 55.8 1.45 30 3.63 17.1 206 0.37 8.77 1.7 47.4 < 0.030 84 < 0.030 < 0.50 0.142 0.61 < 10.0 < 0.020 41.3 2.67 1.0 < 1.00 614 1.2 < 2.0 0.177 < 3 34.4 4.0 9.62 161   485   0.66 0.044 1.72 0.025 < 0.005 10.00 10 3044 754   1
2019-02-28 13:55
 MST
 K
 WS
 USGS-WRD
 0.5 8.5 627 602 678 0.00001 14.2 120 8.2 8.4 1.8 < 15 0.29 0.006 0.218 0.223 0.078 0.025 251 103 62.9 22.6 47.3 1.30 29 3.49 17.1 185 0.40 8.59 1.9 47.6 < 0.030 71 < 0.030 < 0.50 0.207 0.63 < 10.0 < 0.020 28.6 2.49 0.92 < 1.00 556 1.6 < 2.0 0.149 < 3 31.1 3.2 8.83 148 17 439 713 0.60 0.376 0.963 0.020 < 0.005 10.00 10 3044 695   1
2019-03-19 11:05
 MDT
 K
 WS
 USGS-WRD
 6.1 3.0 638 578 818 M  12.8 123 8.4 8.5 1.2 27 0.24 0.009 0.714 0.724 0.073 0.024 286 129 67.2 28.4 69.0 1.78 34 3.69 20.1 242 0.37 6.42 2.0 49.3 < 0.010 88 < 0.030 < 0.50 0.195 0.76 < 10.0 0.028 69.9 2.85 1.1 < 1.00 627 1.9 < 2.0 0.181 4 33.8 13.1 10.3 157 16 536 837 0.73 0.307 3.16 0.031 < 0.005 10.00 10 3044 829 E 9 1
2019-04-18 10:35
 MDT
 K
 WS
 USGS-WRD
 10.5 9.0 637 652 772 0.00001 10.9 117 8.3 8.4 1.5 39 < 0.01 0.010 0.358 0.368 0.071 0.023 281 126 67.8 26.9 63.5 1.65 33 3.46 16.4 225 0.35 8.85 1.9 45.4 < 0.010 86 < 0.030 < 0.50 0.178 0.54 < 10.0 < 0.020 22.9 2.79 1.2 < 1.00 609 1.7 < 2.0 0.171 6 34.1 3.9 7.98 154 18 507 893 0.69 < 0.013 1.59 0.033 < 0.005 10.00 10 3044 783 43 1
2019-05-07 12:35
 MDT
 K
 WS
 USGS-WRD
 12.5 13.5 629 634 698 M      9.1 8.9 0.2 < 15 < 0.01 0.002 0.068 0.070 0.026 0.009 265 115 64.1 25.2 56.2 1.51 31 3.26 16.6 206 0.36 5.22 1.9 46.8 < 0.030 81 < 0.090 < 0.50 0.152 0.52 < 10.0 < 0.020 20.4 2.52 0.93 < 3.00 566 2.2 < 2.0 0.182 3 32.3 3.3 7.70 150 18 468 801 0.64 < 0.013 0.302 0.006 < 0.005 10.00 10 3044 720   1
2019-06-24 14:15
 MDT
 K
 WS
 USGS-WRD
 15.0 21.5 629 1820 566 M  9.2 111 8.5 8.4 0.8 71 < 0.01 0.001 0.155 0.156 0.047 0.015 211 70 53.1 18.8 39.2 1.18 29 3.09 10.7 139 0.37 6.07 1.9 49.6 < 0.010 62 < 0.030 < 0.50 0.191 0.56 < 10.0 < 0.020 9.38 2.31 0.99 < 1.00 426 2.0 < 2.0 0.196 10 23.0 1.4 6.25 140 52 356 1750 0.48 < 0.013 0.684 0.005 < 0.005 10.00 10 3052 568   10
2019-07-15 11:35
 MDT
 K
 WS
 USGS-WRD
 15.9 28.0 635 3120 476 M  9.1 111 8.6 8.6 0.6 24 0.02 0.001 0.071 0.073 0.035 0.011 193 62 50.2 16.3 30.6 0.96 25 2.65 8.48 106 0.38 8.16 2.1 43.5 < 0.010 52 < 0.030 < 0.50 0.130 0.72 < 10.0 0.029 4.01 2.24 0.87 < 1.00 391 2.3 < 2.0 0.199 7 20.6 0.93 4.86 131 88 302 2550 0.41 0.021 0.316 0.004 < 0.005 10.00 10 3052 482 59 1
2019-08-27 11:15
 MDT
 K
 WS
 USGS-WRD
 15.6 19.0 639 2570 482 M  10.4 125 8.6 8.6 0.6 < 15 < 0.01 < 0.001 0.054 0.054 0.055 0.018 187 58 48.5 15.9 30.6 0.98 26 2.56 8.68 113 0.35 9.30 1.9 42.0 < 0.010 51 < 0.030 < 0.50 0.131 0.69 < 10.0 < 0.020 5.43 2.21 0.78 < 1.00 390 2.1 < 2.0 0.148 4 21.9 1.1 4.63 129 73 307 2130 0.42 < 0.013 0.238 < 0.003 < 0.005 10.00 10 3052 487   1
2019-09-24 13:50
 MDT
 K
 WS
 USGS-WRD
 15.8 25.5 632 604 730 M  12.2 149 8.8 8.9 0.4 < 15 < 0.01 0.006 0.214 0.220 0.095 0.031 269 117 65.8 25.4 57.2 1.52 31 3.37 16.3 212 0.35 5.29 2.0 49.6 < 0.010 83 < 0.030 < 0.50 0.143 0.42 < 10.0 < 0.020 19.7 2.61 0.95 < 1.00 575 2.1 < 2.0 0.174 < 3 31.4 3.6 7.86 152 17 479 781 0.65 < 0.013 0.949 0.020 < 0.005 10.00 10 3044 729   1

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