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Water Quality Samples for the Nation

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 08051135 Elm Fk Trinity Rv at Greenbelt nr Pilot Point, TX

Denton County, Texas
Hydrologic Unit Code 12030103
Latitude  33°20'59", Longitude  97°02'08" NAD83
Drainage area 694  square miles
Contributing drainage area 694  square miles
Gage datum 522.04 feet above NAVD88
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
 



Sam-
pling
depth,
feet
(00003)



Temper-
ature,
water,
deg C
(00010)



Temper-
ature,
air,
deg C
(00020)


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




Wind
speed,
mi/h
(00035)
Wind
direc-
tion,
clkwise
from
north,
degrees
(00036)


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)


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




Sample
volume,
liters
(32000)




Sample
purpose
code
(71999)



Sam-
pling
method,
code
(82398)




Sampler
type,
code
(84164)



Zebra
mussel
adults,
#/m2
(94424)



Zebra
mussel
larvae,
#/L
(94425)
Zebra
mussel
rDNA
ITS 2
gene,
water,
cp/L
(94428)
Zebra
mussel,
average
larvae
shell
length,
um
(94429)
Zebra
mussel,
average
adult
shell
length,
mm
(94430)
Type
of
sample
related
QA
data,
code
(99111)
2012-10-09 12:45
CDT
K
WS
USGS-WRD
1.00 20.7 24.5 746       295 0.00001 9.1 104 7.9             U         
2012-11-20 08:06
CST
K
WS
USGS-WRD
1.00 15.5 12.1 754 1.9     310 0.00001 9.4 95 8.1             U         
2013-04-23 07:10
CDT
K
WS
USGS-WRD
  15.9 18.5 744     66 306 0.00033 9.3 96 6.5 1.9           0.0   118.4    
2013-05-24 09:51
CDT
K
WS
USGS-WRD
1.00 21.4 25.3 750       306 0.00001 8.9 102 7.9           40 0.0   120.0 18.7  
2013-07-01 08:36
CDT
K
WS
USGS-WRD
1.00 28.0 22.5 747 3.2     293 0.00001 7.3 95 8.3             0.0   111.4    
2013-09-10 10:02
CDT
K
WS
USGS-WRD
1.00 27.7 28.2 750 2.5     293 0.00001 7.4 95 7.9             1   107.3    
2013-10-22 11:20
CDT
K
WS
USGS-WRD
1.00 19.8 18.4 750 2.5     294 0.00001 8.8 98 8.0             4   119.8    
2013-12-19 09:26
CST
K
WS
USGS-WRD
1.00 7.7 15.2 744 11     296 0.00001 11.1 95 8.0             0.0   150.3    
2014-04-14 08:50
CDT
K
WS
USGS-WRD
1.00 14.4 7.7 746 12     311 0.00002 9.7 97 7.6             < 0.01   100.8    
2014-05-05 09:40
CDT
K
WS
USGS-WRD
1.00 17.6 17.6 744 23     314 0.00001 8.1 87 7.9           6 0.0   117.9 2.84  
2014-06-12 08:25
CDT
K
WS
USGS-WRD
1.00 23.4 21.1 746 4.2     316 0.00002 7.8 93 7.8             21   112.5    
2014-06-30 08:40
CDT
K
WS
USGS-WRD
1.00 24.7 26.4 747 3.3     319 0.00001 7.6 93 7.9             2   146.2    
2014-10-08 09:04
CDT
K
WS
USGS-WRD
4.00 22.5           288 0.00005 8.0   7.3             0.0        
2014-10-08 09:05
CDT
K
WS
USGS-WRD
1.00 22.5 26.3 747 1.6     288 0.00004 8.0 94 7.4             0.0        
2014-10-27 08:40
CDT
K
WS
USGS-WRD
4.00 19.8           288 0.00004 8.4   7.4                      
2014-10-27 08:41
CDT
K
WS
USGS-WRD
1.00 19.8 20.7 742 2.1     288 0.00002 8.4 95 7.6             0.0        
2015-04-08 09:17
CDT
K
WS
USGS-WRD
4.00 13.9   745       304 0.00004 9.5 94 7.5                      
2015-04-08 09:18
CDT
K
WS
USGS-WRD
1.00 14.2 21.7 745 6.5     305 0.00003 9.5 95 7.6             0.0        
2015-05-05 08:35
CDT
K
WS
USGS-WRD
5.00 16.7   769       300 0.00006 8.8 90 7.2                      
2015-05-05 08:36
CDT
K
WS
USGS-WRD
1.00 16.8 19.9 769 6.0     300 0.00004 8.8 90 7.4             0.0        
2015-06-24 09:11
CDT
K
WS
USGS-WRD
1.00 21.8 28.2 772 1.5     247 0.00006 9.3 105 7.2   1080 10.00 50 4030   0.0       1
2015-07-30 09:17
CDT
K
WS
USGS-WRD
1.00 23.3 30.8 748 < 1.0     246 0.00006 8.6 102 7.2   1080 10.00 50 4030   0.0   109.5   1
2015-10-01 09:49
CDT
K
WS
USGS-WRD
3.00 22.3   749       321 0.00027 5.6 66 6.6                      
2015-10-01 09:50
CDT
K
WS
USGS-WRD
1.00 22.3 20.5 749 7.1     321 0.00017 5.6 65 6.8             < 0.01        
2015-11-04 09:22
CST
K
WS
USGS-WRD
1.00 19.8 18.0 750 3.3     257 0.00017 9.6 106 6.8   1000 10.00 50 4030   U        1
2016-04-05 09:51
CDT
K
WS
USGS-WRD
1.00 15.3 22.2 754 1.0     233 0.00001 10.7 108 7.9   1000 10.00 50 4030   U        1
2016-05-02 10:56
CDT
K
WS
USGS-WRD
3.00 20.4   753       620 0.00007 7.7 86 7.2     10.00 50 4030           1
2016-05-02 10:57
CDT
K
WS
USGS-WRD
1.00 20.5 14.1 753 7.9 76   621 0.00005 7.8 88 7.3   1080 10.00 50 4030 24 50   118.5 7.96 1
2016-06-16 09:30
CDT
K
WS
USGS-WRD
1.00 27.7 29.5 746 9.2 202   474 0.00003 8.4 110 7.5   1080 10.00 50 4030   100   99.38   1
2016-07-12 08:53
CDT
K
WS
USGS-WRD
1.00 22.7 28.2 749 1.7 119   241 0.00009 8.6 101 7.1   1080         0.0   96.69   1
2016-10-03 09:25
CDT
K
WS
USGS-WRD
1.00 23.5   751       255 0.00012 7.2 86 6.9   1080         0.0   97.75   1
2016-11-03 09:25
CST
K
WS
USGS-WRD
5.00 21.6   752       256 0.00027 8.0 92 6.6                     1
2016-11-03 09:26
CST
K
WS
USGS-WRD
1.00 21.6 21.1 752 2.8 70   256 0.00021 8.0 92 6.7   1080       U  0.0   98.56   1
2017-04-19 09:22
CDT
K
WS
USGS-WRD
1.00 18.5 21.3 755 4.5 115   266 0.00002 10.0 108 7.7   1080         0.0   175.4   1
2017-05-10 09:12
CDT
K
WS
USGS-WRD
1.00 19.2 23.5 746 5.3 66   280 0.00007 8.4 93 7.2   1080         0.0   138.0   1
2017-06-29 09:26
CDT
K
WS
USGS-WRD
1.00 24.5 26.0 752 5.0 144   316 0.00003 7.9 96 7.6   1080         0.0   94.91   1
2017-07-19 09:25
CDT
K
WS
USGS-WRD
1.00 24.9 31.1 763 3.0 175   322 0.00025 6.9 83 6.6   1080         0.0 250000 95.77   1
2017-10-03 10:20
CDT
K
WS
USGS-WRD
1.00 23.8 25.3 752 3.0 88   294 0.00003 6.1 74 7.5   1000         U  330000     1
2017-10-30 09:22
CDT
K
WS
USGS-WRD
4.00 16.6 16.9 745 < 1.0     283 0.00001 8.8 92 8.0   1080       U  0.0 360000 118.7   1
2018-04-18 09:33
CDT
K
WS
USGS-WRD
3.00 17.4   748       314 0.00002 9.8 104 7.6                     1
2018-04-18 09:34
CDT
K
WS
USGS-WRD
1.00 17.5 19.5 748 9.1 359   313 0.00002 9.8 104 7.7   1000         U  220000     1
2018-05-09 09:34
CDT
K
WS
USGS-WRD
1.00 20.2 24.9 747 2.9 337   324 0.00007 8.5 95 7.2   1080       U  0.0 840000 96.05   1
2018-05-30 09:28
CDT
K
WS
USGS-WRD
1.00 21.7 31.2 747 2.3 101   318 0.00002 8.1 94 7.8   1080       U  0.0 3900000 101.3   1
2018-06-28 09:35
CDT
K
WS
USGS-WRD
1.00 20.8 31.6 752 3.4 212   316 0.00003 7.7 88 7.5   1000         U  560000     1
2018-10-01 09:13
CDT
K
WS
USGS-WRD
1.00 23.4 24.9 756 1.8 107   246 0.00003 9.5 113 7.5   1080         < 0.01 160000 156.5   1
2018-11-06 10:15
CST
K
WS
USGS-WRD
3.00 16.7   751       259 0.00002 9.0 94 7.7                     1
2018-11-06 10:16
CST
K
WS
USGS-WRD
1.00 16.8 22.5 751 8.7 78   259 0.00002 9.2 96 7.7   1000         U  340000     1
2019-04-30 09:15
CDT
K
WS
USGS-WRD
1.00 17.1 24.5 750 3.2 122   270 0.00001 10.3 109 7.9   1080         < 0.01 2300 127.8   1
2019-04-30 09:16
CDT
K
WS
USGS-WRD
5.00 17.1   750       270 0.00001 10.3 109 7.9                     1
2019-04-30 09:17
CDT
K
WS
USGS-WRD
8.00 17.1   750       270 0.00002 10.3 108 7.8                     1
2019-07-09 09:25
CDT
K
WS
USGS-WRD
1.00 22.7 29.9 745 1.1 192   273 0.00003 8.9 105 7.5   1080         0.0 3500000 181.4   1
2019-10-09 09:28
CDT
K
WS
USGS-WRD
1.00 22.8 21.2 752 3.3 53   292 0.00002 6.7 79 7.6   1080         0.0 1000000 103.1   1
2020-04-23 10:29
CDT
K
WS
USGS-WRD
1.00 16.8 21.1 749 2.2 11   261 0.00001 10.7 112 8.1   1080         0.0 1400000 125.5   1
2020-06-18 09:00
CDT
K
WS
USGS-WRD
3.00 21.3   748       277 0.00098 8.7 100 6.0                     1
2020-06-18 09:01
CDT
K
WS
USGS-WRD
1.00 21.4 27.7 748 4.9 126   277 0.00094 8.8 100 6.0   1000         U  64000     1
2020-07-29 09:27
CDT
K
WS
USGS-WRD
1.00 27.2 27.7 757 3.2 82   276 0.00009 5.9 74 7.1   1000       U  U  490000     1
2020-10-22 09:20
CDT
K
WS
USGS-WRD
1.00 20.6 23.5 751 1.0 150   265 0.00012 8.1 91 6.9   1000         U  2400     1
2021-04-13 10:30
CDT
K
WS
USGS-WRD
1.00 16.7 18.1 762 5.8 31   294 0.00001 9.4 96 8.0   1000         U  2800     1
2021-06-02 09:18
CDT
K
WS
USGS-WRD
5.00 21.7   749       296 0.00016 8.4 97 6.8                     1
2021-06-02 09:19
CDT
K
WS
USGS-WRD
1.00 21.8 20.2 749   225   295 0.00006 8.8 101 7.2   1080         0.0   93.07   1
2021-07-06 09:13
CDT
K
WS
USGS-WRD
1.00 21.9 27.6 752 < 1.0     284 0.00004 8.9 103 7.4   1080         0.0 3900000 146.4   1
2021-10-07 09:19
CDT
K
WS
USGS-WRD
1.00 22.3 23.1 757 < 1.0     288 0.00011 7.0 81 7.0   1080         U        1
2022-04-06 09:53
CDT
K
WS
USGS-WRD
1.00 14.5 16.9 744 17 347   294 0.00001 9.6 96 8.0   1080         U         
2022-06-13 10:10
CDT
K
WS
USGS-WRD
5.00 23.5   764       308 0.00002 9.9 116 7.7                      
2022-06-13 10:11
CDT
K
WS
USGS-WRD
1.00 23.5 30.8 764 1.4 98   281 0.00002 9.9 116 7.7   1080         0.44   126.3    
2022-07-27 08:56
CDT
K
WS
USGS-WRD
1.00 26.5 30.9 764 1.3 196   300 0.00002 6.2 77 7.7   1080         0.0   91.30    
2022-10-05 09:52
CDT
K
WS
USGS-WRD
1.00 21.9 22.1 743 1.6 98   318 0.00004 7.0 81 7.4   1080         U         
2023-04-18 09:28
CDT
K
WS
USGS-WRD
4.00 16.1   764       284 0.00002 10.2 103 7.8                      
2023-04-18 09:29
CDT
K
WS
USGS-WRD
1.00 16.1 20.5 764 6.3 240   284 0.00002 10.2 103 7.7   1000         U         
2023-06-20 10:30
CDT
K
WS
USGS-WRD
1.00 25.3 30.7 742 3.2 127   303 0.00002 7.3 91 7.6   1080         0.39   113.9    
2023-07-19 08:35
CDT
K
WS
USGS-WRD
1.00 27.2 31.4 746 2.3 161   318 0.00002 7.1 91 7.6   1080         0.01   97.12    

Water Quality Remark Code Description
< Less than
U Analyzed for but not detected