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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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)
2019-10-30 11:40
 MDT
 K
 WS
 USGS-WRD
 0.0 -8.5 639 E 550 804 M  16.0 131 8.5 8.3 1.0 < 15 < 0.01 0.008 0.656 0.664 0.093 0.030 299 139 70.6 29.6 65.8 1.66 32 3.58 22.2 251 0.41 9.00 1.7 52.8 < 0.010 92 < 0.030 < 0.50 0.150 0.53 < 10.0 < 0.020 32.8 2.84 1.2 < 1.00 647 1.1 < 2.0 < 0.180 < 3 34.4 3.9 8.92 160 E 16 551 E 819 0.75 < 0.013 2.90 0.026 0.609 10.00 70 3071 825   1
2019-11-21 10:40
 MST
 K
 WS
 USGS-WRD
 2.0 0.0 634 589 745 M  11.8 103 8.4 8.4 1.1 < 15 < 0.01 0.003 0.336 0.339 0.048 0.016 270 119 65.8 25.4 58.4 1.55 32 3.32 18.5 214 0.38 4.87 1.4 47.9 < 0.010 86 < 0.030 < 0.50 0.191 0.56 < 10.0 < 0.020 20.7 2.53 1.0 < 1.00 597 0.9 < 2.0 0.250 3 31.6 3.5 8.75 150 17 484 769 0.66 < 0.013 1.49 0.011 < 0.005 10.00 10 3044 749 44 1
2019-12-19 12:30
 MST
 K
 WS
 USGS-WRD
 0.1 3.0 629 633 757 M  12.8 107 8.6 8.2 0.7 < 15 < 0.01 0.004 0.442 0.446 0.064 0.021 279 124 69.1 25.8 57.3 1.49 31 3.58 18.6 215 0.39 8.00 1.6 51.3 < 0.010 83 < 0.030 < 0.50 0.245 0.58 < 10.0 < 0.060 23.6 2.99 1.2 < 1.00 605 0.7 < 2.0 0.218 < 3 30.9 3.9 9.38 156 18 495 845 0.67 < 0.013 1.96 0.014 < 0.005 10.00 10 3044 753   1
2020-01-28 11:30
 MST
 K
 WS
 USGS-WRD
 0.1 0.0 632 610 727 0.00001 12.4 103 8.3 8.2 1.3 < 15 0.01 0.005 0.483 0.488 0.073 0.024 268 131 65.3 25.2 56.3 1.50 31 3.52 19.6 207 0.38 8.95 1.8 48.9 < 0.010 81 < 0.030 < 0.50 0.234 0.58 < 10.0 < 0.020 47.1 2.39 1.0 < 1.00 577 1.2 < 2.0 0.163 < 9 25.9 4.9 9.70 137 17 471 776 0.64 0.013 2.14 0.016 < 0.005 10.00 10 3044 733   1
2020-02-18 13:40
 MST
 K
 WS
 USGS-WRD
 1.4 -1.0 634 489 711 M  15.2 130 8.5 8.4 0.9 < 15 0.02 0.005 0.470 0.475 0.064 0.021 258 109 63.6 23.8 54.3 1.47 31 3.41 19.8 192 0.37 9.05 1.7 46.7 < 0.010 78 < 0.030 < 0.50 0.169 0.56 13.2 < 0.020 32.8 2.39 0.99 < 1.00 572 1.6 < 2.0 0.141 8 25.0 4.0 8.93 148 14 458 605 0.62 0.023 2.08 0.018 < 0.005 10.00 10 3044 709 E 8 1
2020-03-13 10:40
 MDT
 K
 WS
 USGS-WRD
 3.2 -2.0 631 635 869 0.00001 11.4 103 8.2 8.3 1.9 42 < 0.01 0.004 0.556 0.560 0.068 0.022 315 157 73.6 31.6 80.1 1.97 35 3.99 20.0 284 0.39 8.18 2.0 42.1 < 0.010 99 < 0.030 < 0.50 0.358 0.60 27.2 < 0.060 55.2 2.66 1.3 < 1.00 670 1.4 < 2.0 0.155 19 38.3 8.0 8.93 158 18 601 1030 0.82 < 0.013 2.46 0.013 0.026 10.00 10 3044 884   1
2020-04-09 12:00
 MDT
 K
 WS
 USGS-WRD
 10.1 6.5 636 643 789 M  11.7 125 8.4 8.3 1.2 32 < 0.01 0.005 0.288 0.293 0.046 0.015 289 130 69.2 28.0 65.6 1.68 33 3.50 17.3 239 0.37 8.86 1.7 53.5 < 0.030 94 < 0.090 < 1.5 0.269 < 1.2 46.1 0.045 32.4 2.55 1.2 < 3.00 612 1.3 < 6.0 < 0.180 37 38.8 4.3 8.48 159 18 529 919 0.72 < 0.013 1.28 0.017 < 0.005 10.00 10 3044 803 E 13 1
2020-05-07 12:55
 MDT
 K
 WS
 USGS-WRD
 9.7 10.0 632 2760 471 M  10.6 113 8.5 8.4 0.8 31 < 0.01 0.001 0.095 0.096 0.029 0.010 188 59 48.7 16.1 30.0 0.95 25 2.71 8.59 109 0.33 7.99 2.0 47.4 < 0.010 52 < 0.030 < 0.50 0.202 0.70 11.9 < 0.020 5.10 2.24 0.94 < 1.00 380 1.7 < 2.0 0.136 12 21.0 1.0 5.69 129 78 302 2250 0.41 < 0.013 0.420 0.004 < 0.005 10.00 10 3052 478   1
2020-06-18 10:05
 MDT
 K
 WS
 USGS-WRD
 13.5 14.5 634 3790 442 M  10.2 118 8.6 8.5 0.6 < 15 < 0.01 0.001 < 0.039 < 0.040 0.014 0.005 183 54 47.9 15.3 27.8 0.90 25 2.67 7.35 98.3 0.33 9.04 2.1 41.4 < 0.010 48 < 0.030 < 0.50 0.214 0.98 < 10.0 < 0.020 3.74 2.12 0.88 < 1.00 368 1.7 < 2.0 0.136 8 20.3 0.79 4.82 129 107 286 2930 0.39 < 0.013 < 0.172 0.004 < 0.005 10.00 10 3052 449   10
2020-07-16 11:55
 MDT
 K
 WS
 USGS-WRD
 17.6 26.5 635 3840 444 M  7.0 88 8.5 8.5 0.8 < 15 < 0.01 < 0.001 0.061 0.061 0.024 0.008 184 56 48.6 15.2 28.0 0.90 25 2.69 7.37 94.8 0.35 9.32 2.2 42.1 < 0.010 48 < 0.030 < 0.50 0.234 0.82 < 10.0 < 0.020 4.43 2.20 0.85 < 1.00 363 1.9 < 2.0 0.144 6 20.1 0.70 5.18 129 109 284 2950 0.39 < 0.013 0.269 < 0.003 < 0.005 10.00 10 3052 448   1
2020-08-18 10:30
 MDT
 K
 WS
 USGS-WRD
 19.0 25.0 637 2190 480 0.00001 9.5 123 8.3 8.5 1.3 < 15 < 0.01 0.001 < 0.039 < 0.040 0.033 0.011 192 62 49.6 16.4 30.7 0.97 26 2.69 8.55 110 0.35 8.73 2.1 45.9 < 0.010 53 < 0.030 < 0.50 0.101 0.88 < 10.0 < 0.020 6.50 2.19 0.85 < 1.00 389 1.6 < 2.0 0.123 4 21.5 0.95 4.85 130 62 305 1810 0.42 < 0.013 < 0.172 0.004 < 0.005 10.00 10 3052 483 36 1
2020-09-16 10:20
 MDT
 K
 WS
 USGS-WRD
 15.5 16.6 640 591 716 M  9.8 117 8.6 8.7 0.7 < 15 0.01 0.004 0.264 0.267 0.082 0.027 272 125 64.8 26.6 60.0 1.59 32 3.49 17.1 216 0.39 3.14 2.1 48.4 < 0.010 89 < 0.030 < 0.50 0.154 0.77 < 10.0 < 0.020 22.3 2.69 1.0 < 1.00 592 1.4 < 2.0 0.166 < 3 32.9 3.3 7.88 147 17 481 768 0.65 0.014 1.17 0.012 < 0.005 10.00 10 3044 729   1

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