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Water Quality Samples for North Carolina

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The daily maximum and minimum water level values for groundwater wells after September 30, 2023 are no longer being displayed on NWISWeb. However, these values can be determined using the instantaneous values that are available through the "Time-Series: Current/Historical Observations" option in the available data dropdown box for the station.


! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting in February 2024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 02081065 SMITHWICK CR NEAR BEAR GRASS, NC

Martin County, North Carolina
Hydrologic Unit Code 03010107
Latitude  35°45'57.3", Longitude  77°03'06.3" NAD83
Drainage area 12.5  square miles
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)


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


Hard-
ness,
water,
mg/L as
CaCO3
(00900)



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)



Ammonia
water,
fltrd,
mg/L
(71846)




Sample
purpose
code
(71999)


delta
H-2/H-1
water,
unfltrd
per mil
(82082)

delta
O-18 /
O-16,
water,
unfltrd
per mil
(82085)



Sam-
pling
method,
code
(82398)




Sampler
type,
code
(84164)

Sample
split-
ter
type,
field,
code
(84171)
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)

0.45 um
capsule
filter
NWIS
lot
number
(99206)
2012-06-14 11:45
EDT
K
WS
USGS-WRD
22.7 767 95 0.00116 1.3 15 5.9 < 1.2 1.1 0.07 1.1 < 0.040 0.022 0.100 0.007 31.3 8.21 2.64 4.46 0.35 22 2.85 11.9 8.34 0.084 10.00 -18.50 -3.30 55 3060 10 1 40070 40073 10904
2012-08-26 17:45
EDT
K
WS
USGS-WRD
24.6 769 81 0.00236 2.4 28 5.6 < 1.1 1.1 0.02 1.1 < 0.040 0.021 0.068 0.007 27.6 7.46 2.17 4.03 0.33 23 1.75 8.31 9.26 0.024 10.00 -18.80 -3.79 70 3060 10 1 40070 40073 10801
2012-10-22 16:40
EDT
K
WS
USGS-WRD
15.1 770 91 0.00130 1.4 14 5.9 < 0.83 0.77 0.02 0.79 < 0.040 0.017 0.048 0.006 29.0 7.63 2.42 4.79 0.39 24 2.85 12.0 9.14 0.026 10.00 -17.20 -3.27 55 3060 10 1 40087 40088 10013
2012-12-11 15:00
EST
K
WS
USGS-WRD
13.5 765 119 0.00096 1.9 18 6.0 < 0.85 0.80 0.01 0.81 < 0.040 0.033 0.066 0.011 37.4 9.63 3.24 5.40 0.38 21 5.81 17.2 8.42 0.018 10.00 -22.60 -4.02 55 3060 10 1 40095 40093 10014
2013-02-11 16:30
EST
K
WS
USGS-WRD
10.2 765 82 0.00149 10.4 92 5.8 0.54 < 0.49 < 0.01 0.49 0.055 < 0.012 0.026 < 0.004 23.7 6.15 2.03 4.09 0.37 24 3.18 10.1 13.9 < 0.013 10.00 -28.10 -5.26 55 3060 10 1 40104 40103 10016
2013-04-22 17:40
EDT
K
WS
USGS-WRD
15.0 772 97 0.00078 4.3 42 6.1 < 0.96 0.84 0.08 0.92 < 0.040 0.032 0.074 0.010 29.6 7.91 2.40 5.42 0.43 26 3.51 12.8 8.97 0.105 10.00 -18.30 -3.43 55 3060 10 10 40104 40103 10014

Water Quality Remark Code Description
< Less than