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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 08051200 Elm Fk Trinity Rv at FM 428 nr Aubrey, TX

Denton County, Texas
Hydrologic Unit Code 12030103
Latitude  33°18'24.96", Longitude  97°02'32.40" NAD83
Gage datum 534 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,
average
larvae
shell
length,
um
(94429)		 Type
of
sample
related
QA
data,
code
(99111)
2012-10-09 14:30
 CDT
 K
 WS
 USGS-WRD
 1.00 19.7 19.7 745       303 0.00002 8.4 94 7.7             U     
2012-11-19 17:50
 CST
 K
 WS
 USGS-WRD
 1.00 16.0 20.0 753 < 1.0     303 0.00002 8.9 91 7.7             U     
2013-04-23 09:19
 CDT
 K
 WS
 USGS-WRD
   17.7 13.0 746     66 315 0.00012 8.0 85 6.9 1.9           0.0 108.1  
2013-05-24 11:32
 CDT
 K
 WS
 USGS-WRD
 1.00 22.5 26.7 751       313 0.00002 7.0 82 7.6             0.0 109.1  
2013-07-01 09:30
 CDT
 K
 WS
 USGS-WRD
 1.00 27.4 23.7 748 1.5     300 0.00001 6.2 79 8.0             0.0 92.02  
2013-09-10 10:50
 CDT
 K
 WS
 USGS-WRD
 1.00 27.5 30.0 750 1.3     296 0.00001 6.5 83 7.9             0.0 100.9  
2013-10-22 12:30
 CDT
 K
 WS
 USGS-WRD
 1.00 18.3 21.4 750 3.0     298 0.00001 8.4 91 8.0             0.0 116.8  
2013-12-19 10:30
 CST
 K
 WS
 USGS-WRD
 1.00 8.1 16.7 744 2.4     300 0.00002 10.9 95 7.7             0.0    
2014-04-14 09:45
 CDT
 K
 WS
 USGS-WRD
 1.00 15.2 7.3 746 16     321 0.00002 8.4 86 7.8             U     
2014-05-05 10:35
 CDT
 K
 WS
 USGS-WRD
 1.00 19.3 24.5 745 3.5     322 0.00001 6.8 76 7.9             0.0 114.5  
2014-06-12 09:05
 CDT
 K
 WS
 USGS-WRD
 1.00 25.6 21.9 746 1.4     323 0.00001 6.6 82 7.8             0.0 128.5  
2014-06-30 09:15
 CDT
 K
 WS
 USGS-WRD
 1.00 27.2 27.2 747 4.2     328 0.00001 6.5 84 7.9             0.0 118.8  
2014-10-08 09:47
 CDT
 K
 WS
 USGS-WRD
 4.00 23.8 27.1 748 2.2     296 0.00002 7.1 86 7.7                  
2014-10-08 09:48
 CDT
 K
 WS
 USGS-WRD
 1.00 23.8           300 0.00002 7.1   7.7             0.0    
2014-10-27 09:03
 CDT
 K
 WS
 USGS-WRD
 3.00 20.3           299 0.00002 7.6   7.8                  
2014-10-27 09:04
 CDT
 K
 WS
 USGS-WRD
 1.00 20.3 21.3 742 3.3     301 0.00002 7.6 86 7.8             0.0    
2015-04-08 10:00
 CDT
 K
 WS
 USGS-WRD
 3.00 18.6   745       319 0.00002 7.5 82 7.7                  
2015-04-08 10:01
 CDT
 K
 WS
 USGS-WRD
 1.00 18.7 23.4 745 4.0     333 0.00002 7.5 82 7.7             < 0.01    
2015-05-05 09:35
 CDT
 K
 WS
 USGS-WRD
 6.00 20.8   769       322 0.00004 5.1 57 7.4                  
2015-05-05 09:36
 CDT
 K
 WS
 USGS-WRD
 5.00 20.8   769       321 0.00003 5.3 58 7.5                  
2015-05-05 09:37
 CDT
 K
 WS
 USGS-WRD
 1.00 20.9 21.4 769 8.2     320 0.00003 5.7 63 7.5             0.0    
2015-06-24 09:53
 CDT
 K
 WS
 USGS-WRD
 1.00 22.2 29.8 773 4.1     250 0.00005 9.0 102 7.3   1080 10.00 50 4030   0.0   1
2015-07-30 10:02
 CDT
 K
 WS
 USGS-WRD
 1.00 23.4 33.3 749 2.6     245 0.00006 8.3 99 7.2   1080 10.00 50 4030   0.0 117.2 1
2015-10-01 10:40
 CDT
 K
 WS
 USGS-WRD
 3.00 23.2   750       286 0.00008 6.1 73 7.1                  
2015-10-01 10:41
 CDT
 K
 WS
 USGS-WRD
 1.00 23.2 20.8 750 3.8     285 0.00008 6.1 72 7.1             U     
2015-11-04 10:10
 CST
 K
 WS
 USGS-WRD
 1.00 19.8 19.5 750 4.0     258 0.00004 9.3 104 7.4   1000 10.00 50 4030   U    1
2016-04-05 10:35
 CDT
 K
 WS
 USGS-WRD
 1.00 15.2 22.8 754 1.0     234 0.00002 10.5 105 7.8   1000 10.00 50 4030 U  < 0.01 102.3 1
2016-05-02 11:49
 CDT
 K
 WS
 USGS-WRD
 10.0 19.3   754       640 0.00012 1.4 16 6.9     10.00 50 4030       1
2016-05-02 11:50
 CDT
 K
 WS
 USGS-WRD
 5.00 19.8   754       577 0.00007 6.6 73 7.1     10.00 50 4030       1
2016-05-02 11:51
 CDT
 K
 WS
 USGS-WRD
 1.00 19.9 15.7 754 4.0 165   563 0.00007 6.9 76 7.2   216 10.00 50 4030   3 102.6 1
2016-06-16 10:05
 CDT
 K
 WS
 USGS-WRD
 11.0 23.7   748       344 0.00007 1.0 12 7.1     10.00 50 4030       1
2016-06-16 10:06
 CDT
 K
 WS
 USGS-WRD
 10.0 23.9   748       344 0.00007 1.1 13 7.1     10.00 50 4030       1
2016-06-16 10:07
 CDT
 K
 WS
 USGS-WRD
 5.00 25.9   748       400 0.00005 5.1 64 7.3     10.00 50 4030       1
2016-06-16 10:08
 CDT
 K
 WS
 USGS-WRD
 1.00 27.0 30.1 748 2.6 155   394 0.00003 6.6 84 7.5   1080 10.00 50 4030   4 98.19 1
2016-07-12 09:38
 CDT
 K
 WS
 USGS-WRD
 1.00 22.9 28.2 750 10 174   241 0.00007 8.2 97 7.2   1080         0.0 95.87 1
2016-10-03 10:09
 CDT
 K
 WS
 USGS-WRD
 1.00 22.3   751       294 0.00020 6.6 77 6.7   1080         0.0 97.18 1
2016-11-03 10:22
 CST
 K
 WS
 USGS-WRD
 7.00 22.3   759       341 0.00014 6.1 70 6.9                 1
2016-11-03 10:23
 CST
 K
 WS
 USGS-WRD
 5.00 22.3   759       341 0.00010 6.1 70 7.0                 1
2016-11-03 10:24
 CST
 K
 WS
 USGS-WRD
 1.00 22.3 20.9 759 < 1.0     338 0.00009 6.1 71 7.1   1080       U  0.0 104.1 1
2017-04-19 10:20
 CDT
 K
 WS
 USGS-WRD
 1.00 18.5 21.2 756 5.2 152   267 0.00002 9.7 104 7.7   1080         0.0 101.1 1
2017-05-10 10:00
 CDT
 K
 WS
 USGS-WRD
 1.00 21.9 23.7   4.3 105   339 0.00005 6.9   7.3   1000         U    1
2017-06-29 10:20
 CDT
 K
 WS
 USGS-WRD
 1.00 26.6 27.2 752 3.4 110   356 0.00001 8.0 100 8.0   1080       U  0.0 100.2 1
2017-07-19 10:35
 CDT
 K
 WS
 USGS-WRD
 1.00 28.7 32.9 766 1.8 176   374 0.00014 6.5 83 6.9   1000       U  U    1
2017-10-03 11:15
 CDT
 K
 WS
 USGS-WRD
 3.00 23.4   752       345 0.00003 5.8 69 7.6                 1
2017-10-03 11:16
 CDT
 K
 WS
 USGS-WRD
 1.00 23.7 27.5 752 6.0 108   345 0.00002 6.1 73 7.6   1000         U    1
2017-10-30 10:15
 CDT
 K
 WS
 USGS-WRD
 1.00 12.7 17.3 746 < 1.0     337 0.00002 7.9 76 7.6   1000         U    1
2018-04-18 10:55
 CDT
 K
 WS
 USGS-WRD
 4.00 17.3   748       425 0.00003 7.2 76 7.5                 1
2018-04-18 10:56
 CDT
 K
 WS
 USGS-WRD
 1.00 17.7 21.3 748 5.3 323   426 0.00003 7.4 79 7.6   1000         U    1
2018-05-09 10:40
 CDT
 K
 WS
 USGS-WRD
 5.00 22.0   748       445 0.00005 5.1 59 7.3                 1
2018-05-09 10:41
 CDT
 K
 WS
 USGS-WRD
 1.00 22.1 25.7 748 1.0 253   444 0.00004 5.4 63 7.4   1080         0.0 108.3 1
2018-05-30 10:29
 CDT
 K
 WS
 USGS-WRD
 2.00 27.0   747       472 0.00003 4.4 56 7.5                 1
2018-05-30 10:30
 CDT
 K
 WS
 USGS-WRD
 1.00 27.1 32.8 747 4.6 91   473 0.00003 4.8 61 7.6   1080       U  < 0.01 97.19 1
2018-06-28 10:53
 CDT
 K
 WS
 USGS-WRD
 1.00 28.1 32.0 752 1.5 217   350 0.00002 5.6 72 7.7   1000         U    1
2018-10-01 10:02
 CDT
 K
 WS
 USGS-WRD
 1.00 23.4 26.4 756 1.8 253   245 0.00003 9.1 108 7.5   1000         U    1
2018-11-06 11:55
 CST
 K
 WS
 USGS-WRD
 10.0 16.2   751       326 0.00006 4.8 50 7.2                 1
2018-11-06 11:56
 CST
 K
 WS
 USGS-WRD
 5.00 16.3   751       272 0.00006 5.3 54 7.2                 1
2018-11-06 11:57
 CST
 K
 WS
 USGS-WRD
 1.00 16.9 25.1 751 5.9 95   270 0.00005 5.7 59 7.3   216         0.0 105.5 1
2019-04-30 10:30
 CDT
 K
 WS
 USGS-WRD
 1.00 17.0 25.0 750 5.3 272   268 0.00001 10.1 106 7.8   1000         U    1
2019-04-30 10:31
 CDT
 K
 WS
 USGS-WRD
 5.00 17.0   750       270 0.00002 10.1 106 7.8                 1
2019-04-30 10:32
 CDT
 K
 WS
 USGS-WRD
 8.00 17.0   750       269 0.00002 10.1 106 7.8                 1
2019-07-09 10:34
 CDT
 K
 WS
 USGS-WRD
 1.00 22.0 32.3 745 < 1.0     278 0.00003 8.5 99 7.5   1080         0.0 134.2 1
2019-10-09 10:26
 CDT
 K
 WS
 USGS-WRD
 5.00 22.7   753       357 0.00004 4.0 47 7.4                 1
2019-10-09 10:27
 CDT
 K
 WS
 USGS-WRD
 1.00 22.8 22.3 753 < 1.0     357 0.00004 4.1 48 7.4   216         0.0 90.18 1
2020-04-23 11:40
 CDT
 K
 WS
 USGS-WRD
 1.00 16.6 21.5 749 2.9 71   261 0.00001 10.5 109 8.1   1080         0.0 130.1 1
2020-06-18 10:00
 CDT
 K
 WS
 USGS-WRD
 5.00 23.0   749       289 0.00028 7.8 92 6.5                 1
2020-06-18 10:01
 CDT
 K
 WS
 USGS-WRD
 1.00 23.0 28.2 749 1.3 60   289 0.00028 7.8 93 6.6   1080         0.0 91.34 1
2020-07-29 10:25
 CDT
 K
 WS
 USGS-WRD
 1.00 27.6 27.4 758 < 1.0     340 0.00005 5.3 68 7.3   216         0.0 113.1 1
2020-10-22 10:03
 CDT
 K
 WS
 USGS-WRD
 10.0 20.2   752       342 0.00006 3.7 41 7.2                 1
2020-10-22 10:04
 CDT
 K
 WS
 USGS-WRD
 5.00 21.1   752       308 0.00004 6.7 76 7.4                 1
2020-10-22 10:05
 CDT
 K
 WS
 USGS-WRD
 1.00 21.3 23.9 752 4.5 113   295 0.00003 7.9 91 7.6   216         0.0 107.6 1
2021-04-13 11:30
 CDT
 K
 WS
 USGS-WRD
 10.0 17.5   762       474 0.00005 2.6 27 7.3                 1
2021-04-13 11:31
 CDT
 K
 WS
 USGS-WRD
 5.00 18.4   762       386 0.00002 8.9 95 7.8                 1
2021-04-13 11:32
 CDT
 K
 WS
 USGS-WRD
 1.00 19.1 20.1 762 2.2 3   361 0.00001 9.8 106 7.9   216         U    1
2021-06-02 10:09
 CDT
 K
 WS
 USGS-WRD
 15.0 21.5   750       247 0.00047 4.4 51 6.3                 1
2021-06-02 10:10
 CDT
 K
 WS
 USGS-WRD
 10.0 21.5   750       188 0.00024 5.2 59 6.6                 1
2021-06-02 10:11
 CDT
 K
 WS
 USGS-WRD
 5.00 21.5   750       184 0.00024 5.1 58 6.6                 1
2021-06-02 10:12
 CDT
 K
 WS
 USGS-WRD
 1.00 21.6 22.0 750 < 1.0     182 0.00020 5.2 59 6.7   323         0.0 108.2 1
2021-07-06 09:54
 CDT
 K
 WS
 USGS-WRD
 1.00 21.8 28.7 752 3.2 162   284 0.00003 8.7 100 7.5   1080       U  0.0 137.0 1
2021-10-07 09:58
 CDT
 K
 WS
 USGS-WRD
 4.00 21.4   757       358 0.00017 4.2 47 6.8                 1
2021-10-07 09:59
 CDT
 K
 WS
 USGS-WRD
 1.00 21.4 28.0 757 < 1.0     356 0.00017 4.4 50 6.8   1080       U  0.0 106.8 1
2022-04-06 10:45
 CDT
 K
 WS
 USGS-WRD
 10.0 17.7   745       241 0.00006 3.9 42 7.2                  
2022-04-06 10:46
 CDT
 K
 WS
 USGS-WRD
 5.00 18.0   745       183 0.00007 4.3 46 7.2                  
2022-04-06 10:47
 CDT
 K
 WS
 USGS-WRD
 1.00 19.2 20.2 745 2.5 13   214 0.00006 5.7 63 7.2   216         0.0 94.20  
2022-06-13 11:15
 CDT
 K
 WS
 USGS-WRD
 10.0 23.5   764       312 0.00002 9.2 108 7.7                  
2022-06-13 11:16
 CDT
 K
 WS
 USGS-WRD
 5.00 23.5   764       303 0.00002 9.2 107 7.7                  
2022-06-13 11:17
 CDT
 K
 WS
 USGS-WRD
 1.00 23.5 31.3 764 2.1 149   283 0.00002 9.2 107 7.7   194         0.28 167.1  
2022-07-27 09:45
 CDT
 K
 WS
 USGS-WRD
 10.0 29.3   764       381 0.00004 1.0 13 7.4                  
2022-07-27 09:46
 CDT
 K
 WS
 USGS-WRD
 5.00 29.9   764       358 0.00002 5.1 67 7.8                  
2022-07-27 09:47
 CDT
 K
 WS
 USGS-WRD
 1.00 30.1 32.7 764 1.2 159   334 0.00001 6.6 87 8.0   216       U  0.0 119.3  
2022-10-05 10:30
 CDT
 K
 WS
 USGS-WRD
 10.0 20.7   743       339 0.00004 5.3 61 7.4                  
2022-10-05 10:31
 CDT
 K
 WS
 USGS-WRD
 5.00 20.8   743       354 0.00003 5.4 61 7.5                  
2022-10-05 10:32
 CDT
 K
 WS
 USGS-WRD
 1.00 20.9 24.6 743 1.2 197   355 0.00003 5.4 62 7.5   216         U     
2023-04-18 10:13
 CDT
 K
 WS
 USGS-WRD
 14.0 17.3   764       299 0.00002 9.6 99 7.7                  
2023-04-18 10:14
 CDT
 K
 WS
 USGS-WRD
 10.0 17.3   764       298 0.00002 9.6 100 7.7                  
2023-04-18 10:15
 CDT
 K
 WS
 USGS-WRD
 5.00 17.4   764       298 0.00002 9.7 101 7.7                  
2023-04-18 10:16
 CDT
 K
 WS
 USGS-WRD
 1.00 17.6 21.8 764 1.9 288   292 0.00002 9.9 103 7.7   216         U     
2023-06-20 11:05
 CDT
 K
 WS
 USGS-WRD
 10.0 23.4   742       445 0.00010 0.5 6 7.0                  
2023-06-20 11:06
 CDT
 K
 WS
 USGS-WRD
 5.00 26.6   742       352 0.00003 6.1 79 7.5                  
2023-06-20 11:07
 CDT
 K
 WS
 USGS-WRD
 1.00 28.6 32.6 742 1.3 140   347 0.00001 8.3 110 8.0   216         0.05 136.5  
2023-07-19 09:15
 CDT
 K
 WS
 USGS-WRD
 10.0 28.7   746       385 0.00008 0.6 8 7.1                  
2023-07-19 09:16
 CDT
 K
 WS
 USGS-WRD
 5.00 29.7   746       365 0.00003 4.4 58 7.5                  
2023-07-19 09:17
 CDT
 K
 WS
 USGS-WRD
 1.00 29.8 33.0 746 2.6 148   352 0.00002 5.5 75 7.6   1080         < 0.01 93.80  

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