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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting in February 2024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 02081040 ETHERIDGE SWAMP AT SR 1326 NEAR OAK CITY, NC

Martin County, North Carolina
Hydrologic Unit Code 03010107
Latitude  35°59'17.7", Longitude  77°20'52.7" NAD83
Drainage area 3.9  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)

delta
O-18 /
O-16,
nitrate
wat flt
per mil
(63041)



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)
delta
N-15 /
N-14,
nitrate
water,
fltrd,
per mil
(82690)




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)
2012-06-13 18:45
EDT
K
WS
USGS-WRD
23.0 763 112 0.00111 2.4 28 6.0 1.0 0.84 0.12 0.95 0.063 0.289 0.335 0.094 38.6 10.2 3.21 5.31 0.37 21 2.97 11.8 8.73 7.63 0.150 10.00 -21.90 -3.99 55 6.90 3044 10 1 40070 40073 10013
2012-08-26 13:00
EDT
K
WS
USGS-WRD
21.7 770 91 0.00139 3.0 33 5.9 < 0.98 0.92 0.02 0.94 < 0.040 0.286 0.258 0.093 32.3 8.69 2.58 4.66 0.36 23 1.69 6.63 13.6   0.026 10.00 -23.20 -4.69 55   3044 10 1 40070 40073 10801
2012-10-22 14:20
EDT
K
WS
USGS-WRD
14.6 769 124 0.00071 0.1 0.0 6.2 < 1.2 1.2 0.02 1.2 < 0.040 0.512 0.576 0.167 44.9 11.8 3.72 5.13 0.33 18 4.06 14.0 1.30   0.032 10.00 -17.10 -3.60 55   3060 10 1 40087 40088 10013
2012-12-11 13:00
EST
K
WS
USGS-WRD
12.5 763 168 0.00045 M  0.0 6.4 < 1.3 1.1 0.07 1.2 < 0.040 2.19 1.14 0.713 48.8 12.7 4.17 5.82 0.36 19 5.38 19.0 0.81   0.092 10.00 -21.70 -4.12 55   3060 10 1 40095 40093 10014
2013-02-11 14:15
EST
K
WS
USGS-WRD
10.6 764 114 0.00064 8.3 75 6.2 1.3 0.96 0.02 0.99 0.315 0.096 0.525 0.031 36.7 9.01 3.44 4.68 0.34 20 3.97 13.8 15.3 8.08 0.027 10.00 -28.10 -5.10 55 7.46 3060 10 1 40104 40103 10016
2013-04-23 08:40
EDT
K
WS
USGS-WRD
12.3 770 120 0.00022 4.7 44 6.7 1.2 0.90 0.23 1.1 0.041 0.394 0.552 0.128 39.6 10.2 3.43 6.21 0.43 23 3.90 13.1 2.43   0.292 10.00 -19.10 -3.60 55   3060 10 30 40104 40103 10014

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