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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 06642000 NORTH PLATTE RIVER AT ALCOVA, WY

Natrona County, Wyoming
Hydrologic Unit Code 10180007
Latitude  42°34'27", Longitude 106°41'31" NAD27
Drainage area 10,812  square miles
Contributing drainage area 10,112  square miles
Gage datum 5,299.4 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)



Gage
height,
feet
(00065)		 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)
Total
nitro-
gen,
water,
unfltrd
mg/L
(00600)
Organic
nitro-
gen,
water,
unfltrd
mg/L
(00605)

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

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

Nitrate
water,
fltrd,
mg/L
as N
(00618)		 Ammonia
+
org-N,
water,
unfltrd
mg/L
as N
(00625)		 Nitrate
+
nitrite
water,
fltrd,
mg/L
as N
(00631)
Ortho-
phos-
phate,
water,
fltrd,
mg/L
(00660)
Phos-
phorus,
water,
unfltrd
mg/L
as P
(00665)		 Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)

Gage
height
above
datum
meters
(30207)

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


Ammonia
water,
fltrd,
mg/L
(71846)


Nitrate
water,
fltrd,
mg/L
(71851)

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



Sample
purpose
code
(71999)


Sam-
pling
method,
code
(82398)



Sampler
type,
code
(84164)		 Type
of
sample
related
QA
data,
code
(99111)
2017-11-30 13:15
 MST
 K
 WS
 USGS-WRD
 6.0 11.0 628 E 501   444 M  12.5 122 8.5 0.50 0.36 0.02 < 0.001 0.132 0.37 0.132 0.082 0.03 0.027   E 14 0.020 0.584 < 0.003 10.00 40 3044 10
2018-03-12 13:50
 MDT
 K
 WS
 USGS-WRD
 3.8 12.0 630 E 500   434 M  13.7 126 8.5 < 0.41 < 0.37 < 0.01 < 0.001 < 0.040 0.37 < 0.040 0.013 0.02 0.004   E 14 < 0.013 < 0.177 < 0.003 10.00 40 3044 1
2018-05-24 13:15
 MDT
 K
 WS
 USGS-WRD
 8.8 25.0 628 E 2500 1.41 421 0.00001 12.2 128 8.2 < 0.38 0.32 0.02 < 0.001 < 0.040 0.34 < 0.040 0.016 < 0.01 0.005 0.43 E 71 0.025 < 0.177 < 0.003 10.00 70 3071 1
2018-08-20 13:30
 MDT
 K
 WS
 USGS-WRD
 16.1 25.0 629 E 1120   423 0.00001 8.4 104 8.3 0.45 < 0.35 < 0.01 0.004 0.096 0.35 0.101 0.106 0.05 0.035   E 32 < 0.013 0.426 0.014 10.00 70 3071 10
2018-12-10 13:10
 MST
 K
 WS
 USGS-WRD
 3.6 5.5 629 498   453 0.00001 13.3 122 8.2 0.42 0.32 0.01 0.002 0.085 0.34 0.087 0.049 0.03 0.016   14 0.019 0.374 0.007 10.00 40 3044 1
2019-03-19 13:20
 MDT
 K
 WS
 USGS-WRD
 3.1 3.0 633   1.82 464 0.00001 12.6 113 8.2 0.45 0.30 0.06 0.003 0.085 0.36 0.087 0.088 0.03 0.029 0.55   0.071 0.375 0.009 10.00 70 3071 10
2019-05-09 13:15
 MDT
 K
 WS
 USGS-WRD
 6.0 1.0 627     450 M  11.6 113 8.6 < 0.44 < 0.40 < 0.01 < 0.001 < 0.040 0.40 < 0.040 0.019 0.02 0.006     < 0.013 < 0.177 < 0.003 10.00 70 3071 1
2019-07-17 12:30
 MDT
 K
 WS
 USGS-WRD
 12.6 30.0 627 30000 4.60 432 0.00001 10.8 124 8.3 < 0.38 0.33 0.02 < 0.001 < 0.040 0.34 < 0.040 0.040 0.02 0.013 1.40 850 0.023 < 0.177 < 0.003 10.00 40 3044 1
2019-12-05 13:15
 MST
 K
 WS
 USGS-WRD
 3.8 2.0 626 506   446 M  12.5 116 8.7 < 0.37 < 0.33 < 0.01 < 0.001 < 0.040 0.33 < 0.040 < 0.012 0.01 < 0.004   14 < 0.013 < 0.177 < 0.003 10.00 40 3044 30
2020-02-26 12:50
 MST
 K
 WS
 USGS-WRD
 1.2 1.0 632 503   455 0.00001 14.5 124 8.1 0.47 0.32 0.10 0.002 0.052 0.42 0.054 0.099 0.04 0.032   14 0.130 0.230 0.005 10.00 70 3071 10
2020-06-17 14:15
 MDT
 K
 WS
 USGS-WRD
 11.8 19.9 626 3600   411 0.00001 11.2 126 8.2 < 0.36 0.30 0.02 0.003 < 0.037 0.32 < 0.040 0.016 0.02 0.005   102 0.024 < 0.165 0.009 10.00 70 3071 1
2020-08-20 14:30
 MDT
 K
 WS
 USGS-WRD
 17.6 32.5 628 1500   422 0.00001 10.8 138 8.3 0.39 < 0.31 < 0.01 0.001 0.080 0.31 0.081 0.066 0.03 0.021   42 < 0.013 0.355 0.003 10.00 30 3044 1
2020-12-03 12:15
 MST
 K
 WS
 USGS-WRD
 2.9 -0.9   586   452 M  12.9   8.5 < 0.38 < 0.34 < 0.02 < 0.001 < 0.040 0.34 < 0.040 < 0.012 0.01 < 0.004   17 < 0.026 < 0.177 < 0.003 10.00 40 3044 30
2021-03-09 11:45
 MST
 K
 WS
 USGS-WRD
 4.0 14.5 624 452   458 0.00001 12.6 117 7.9 < 0.11 < 0.07 < 0.02 < 0.001 < 0.040 < 0.07 < 0.040 < 0.012 < 0.01 < 0.004   13 < 0.026 < 0.177 < 0.003 10.00 40 3044 10
2021-06-10 14:15
 MDT
 K
 WS
 USGS-WRD
 10.1 35.0 622 1500   430 0.00001 13.8 150 8.0 < 0.37 < 0.33 < 0.02 < 0.001 < 0.040 0.33 < 0.040 0.022 0.02 0.007   42 < 0.026 < 0.177 < 0.003 10.00 40 3044 1
2021-08-10 12:30
 MDT
 K
 WS
 USGS-WRD
 14.9 28.0 629 2110   422 0.00001 10.4 125 7.9 0.31 < 0.27 < 0.02 0.001 0.042 0.27 0.043 0.047 0.02 0.015   60 < 0.026 0.186 0.004 10.00 40 3044 1
2021-10-21 13:10
 MDT
 K
 WS
 USGS-WRD
 13.0 16.4 632 450   453 M  13.2 151 8.5 0.40 < 0.34 < 0.02 0.005 0.051 0.34 0.055 0.059 0.03 0.019   13 < 0.026 0.224 0.015 10.00 40 3044 1
2022-03-17 13:35
 MDT
 K
 WS
 USGS-WRD
 4.0 3.5 629 448   462 M  11.6 107 8.5 < 0.33 < 0.29 < 0.02 < 0.001 < 0.040 E 0.29 < 0.040 0.021 0.02 0.007   13 < 0.026 < 0.177 < 0.003 10.00 40 3044 1
2022-05-26 13:50
 MDT
 K
 WS
 USGS-WRD
 11.5 26.5 627 505   466 M  11.5 128 8.5 < 0.34 < 0.30 < 0.02 < 0.001 < 0.040 E 0.30 < 0.040 0.025 0.02 0.008   14 < 0.026 < 0.177 < 0.003 10.00 40 3044 1
2022-09-20 12:00
 MDT
 K
 WS
 USGS-WRD
 18.2 22.0 630 498   457 M  10.4 134 8.5 E 0.35 < 0.29 < 0.02 0.009 0.046 E 0.29 0.055 0.150 E 0.07 0.049   14 < 0.026 0.203 0.029 10.00 40 3044 1
2022-11-22 12:50
 MST
 K
 WS
 USGS-WRD
 6.0 7.0 627 453   482 0.00001 12.2 119 8.2 0.42 0.30 0.03 0.001 0.090 0.33 0.092 0.043 E 0.03 0.014   13 0.032 0.400 0.005 10.00 40 3044 1
2023-01-09 13:50
 MST
 K
 WS
 USGS-WRD
 1.2 3.0 625 447   490 M  14.0 121 9.0 0.42 0.34 0.03 < 0.001 0.047 0.37 0.047 0.032 0.02 0.010   13 0.036 0.209 < 0.003 10.00 40 3044 1
2023-05-02 14:25
 MDT
 K
 WS
 USGS-WRD
 7.1 24.8 624 1000   452 M  13.0 131 8.4 0.41 < 0.32 < 0.02 < 0.001 0.088 0.32 0.088 0.027 E 0.02 0.009   28 < 0.026 0.390 < 0.003 10.00 40 3044 1
2023-06-21 09:20
 MDT
 K
 WS
 USGS-WRD
 9.1 14.5 630 1000   437 0.00002 11.4 120 7.8                       28       10.00 40 3044 1
2023-08-10 12:50
 MDT
 K
 WS
 USGS-WRD
 14.4 29.5 625 1900   408 0.00006 10.5 126 7.2                       54       10.00 40 3044 10
2023-10-26 11:50
 MDT
 K
 WS
 USGS-WRD
 10.8 -4.5 625 498   435 0.00001 9.8 108 8.2     0.027 < 0.004 0.219   0.219 0.031   0.010   14 0.035 0.969 < 0.013 10.00 40 3044 1
2024-01-30 12:15
 MST
 K
 WS
 USGS-WRD
 3.2 12.2 632 497   422 0.00001 12.6 114 8.2                       14       10.00 40 3044 1

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