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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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

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