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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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

USGS 332411097001600 Ray Roberts Lk at SPk-Jordan nr Pilot Pt, TX

Denton County, Texas
Hydrologic Unit Code 12030103
Latitude  33°24'11.48", Longitude  97°00'16.16" NAD83
Gage datum 601.00 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
Parameter
Code		 Count Begin
Date		 End
Date		 Parameter Code Complete Name
00003 434 2011-10-24 2023-09-18 Sampling depth, feet
00010 434 2011-10-24 2023-09-18 Temperature, water, degrees Celsius
00020 71 2011-10-24 2023-09-18 Temperature, air, degrees Celsius
00025 429 2011-10-24 2023-09-18 Barometric pressure, millimeters of mercury
00035 71 2011-10-24 2023-09-18 Wind speed, miles per hour
00036 43 2011-10-24 2023-09-18 Wind direction, degrees clockwise from true north
00062 68 2011-10-24 2023-09-18 Elevation of reservoir water surface above datum, feet
00095 434 2011-10-24 2023-09-18 Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
00191 434 2011-10-24 2023-09-18 Hydrogen ion, water, unfiltered, calculated, milligrams per liter
00300 433 2011-10-24 2023-09-18 Dissolved oxygen, water, unfiltered, milligrams per liter
00301 428 2011-10-24 2023-09-18 Dissolved oxygen, water, unfiltered, percent of saturation
00400 434 2011-10-24 2023-09-18 pH, water, unfiltered, field, standard units
00403 52 2011-10-24 2023-09-18 pH, water, unfiltered, laboratory, standard units
00405 51 2011-10-24 2023-09-18 Carbon dioxide, water, unfiltered, milligrams per liter
00452 51 2011-10-24 2023-09-18 Carbonate, water, filtered, inflection-point titration method (incremental titration method), field, milligrams per liter
00453 51 2011-10-24 2023-09-18 Bicarbonate, water, filtered, inflection-point titration method (incremental titration method), field, milligrams per liter
00605 52 2011-10-24 2023-09-18 Organic nitrogen, water, unfiltered, milligrams per liter as nitrogen
00608 52 2011-10-24 2023-09-18 Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen
00613 52 2011-10-24 2023-09-18 Nitrite, water, filtered, milligrams per liter as nitrogen
00618 52 2011-10-24 2023-09-18 Nitrate, water, filtered, milligrams per liter as nitrogen
00631 52 2011-10-24 2023-09-18 Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen
00660 52 2011-10-24 2023-09-18 Orthophosphate, water, filtered, milligrams per liter as PO4
00665 52 2011-10-24 2023-09-18 Phosphorus, water, unfiltered, milligrams per liter as phosphorus
00671 52 2011-10-24 2023-09-18 Orthophosphate, water, filtered, milligrams per liter as phosphorus
00900 52 2011-10-24 2023-09-18 Hardness, water, milligrams per liter as calcium carbonate
00904 39 2011-10-24 2023-09-18 Noncarbonate hardness, water, filtered, field, milligrams per liter as calcium carbonate
00915 52 2011-10-24 2023-09-18 Calcium, water, filtered, milligrams per liter
00925 52 2011-10-24 2023-09-18 Magnesium, water, filtered, milligrams per liter
00930 52 2011-10-24 2023-09-18 Sodium, water, filtered, milligrams per liter
00931 52 2011-10-24 2023-09-18 Sodium adsorption ratio (SAR), water, number
00932 52 2011-10-24 2023-09-18 Sodium fraction of cations, water, percent in equivalents of major cations
00935 52 2011-10-24 2023-09-18 Potassium, water, filtered, milligrams per liter
00940 52 2011-10-24 2023-09-18 Chloride, water, filtered, milligrams per liter
00945 52 2011-10-24 2023-09-18 Sulfate, water, filtered, milligrams per liter
00950 52 2011-10-24 2023-09-18 Fluoride, water, filtered, milligrams per liter
00955 52 2011-10-24 2023-09-18 Silica, water, filtered, milligrams per liter as SiO2
32000 44 2011-10-24 2023-09-18 Sample volume, liters
39086 51 2011-10-24 2023-09-18 Alkalinity, water, filtered, inflection-point titration method (incremental titration method), field, milligrams per liter as calcium carbonate
49701 71 2011-10-24 2023-09-18 Transparency, water, in situ, Secchi disc, feet
62855 52 2011-10-24 2023-09-18 Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, analytically determined, milligrams per liter
70301 51 2011-10-24 2023-09-18 Dissolved solids, water, filtered, sum of constituents, milligrams per liter
70303 51 2011-10-24 2023-09-18 Dissolved solids, water, filtered, short tons per acre-foot
71846 52 2011-10-24 2023-09-18 Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as NH4
71851 52 2011-10-24 2023-09-18 Nitrate, water, filtered, milligrams per liter as nitrate
71856 52 2011-10-24 2023-09-18 Nitrite, water, filtered, milligrams per liter as nitrite
71999 10 2011-10-24 2023-09-18 Sample purpose, code
82398 10 2011-10-24 2023-09-18 Sampling method, code
84164 10 2011-10-24 2023-09-18 Sampler type, code
90095 52 2011-10-24 2023-09-18 Specific conductance, water, unfiltered, laboratory, microsiemens per centimeter at 25 degrees Celsius
94424 30 2011-10-24 2023-09-18 Dreissena polymorpha (Pallas, 1771) adults, number per square meter
94425 69 2011-10-24 2023-09-18 Dreissena polymorpha (Pallas, 1771) larvae, number per liter
94429 51 2011-10-24 2023-09-18 Zebra mussel Dreissena polymorpha (Pallas, 1771) shell length, larvae, average, micrometers
94430 21 2011-10-24 2023-09-18 Zebra mussel Dreissena polymorpha (Pallas, 1771) shell length, adult, average, millimeters
99111 216 2011-10-24 2023-09-18 Type of quality assurance data associated with sample, code
99156 30 2011-10-24 2023-09-18 Sulfuric acid NWIS lot number, 4.5 N (1:7), 1 mL, National Field Supply Service (NFSS) stock number Q438FLD
99159 30 2011-10-24 2023-09-18 Nitric acid NWIS lot number, 7.5-7.7 N, 2 mL, National Field Supply Service (NFSS) stock number Q436FLD
99174 23 2011-10-24 2023-09-18 Sulfuric acid titrant NWIS lot number, 0.16 N, cartridge, National Field Supply Service (NFSS) stock number Q142FLD
99206 30 2011-10-24 2023-09-18 NWIS lot number, capsule filter, 0.45 micron