LCRA Logo Water Quality Data

  • Site: 12302
  • LAKE TRAVIS NEAR DAM
  • Date Parameter Code Agency Depth (m) Parameter Description Value
    Field and Flow
    4/9/2025 89966 LCRA 0.3 PRESENT WEATHER (1=CLEAR,2=PTCLDY,3=CLDY,4=RAIN 1.0
    4/9/2025 89965 LCRA 0.3 WIND INTENSITY (1=CALM,2=SLIGHT,3=MOD.,4=STRONG) 3.0
    4/9/2025 82078 LCRA 0.3 TURBIDITY,FIELD NEPHELOMETRIC TURBIDITY UNITS, N 2.4
    4/9/2025 72053 LCRA 0.3 DAYS SINCE PRECIPITATION EVENT (DAYS) 13.0
    4/9/2025 00400 LCRA 39.4 PH (STANDARD UNITS) 7.3
    4/9/2025 00301 LCRA 39.4 OXYGEN, DISSOLVED (PERCENT OF SATURATION) 11.6
    4/9/2025 00300 LCRA 39.4 OXYGEN, DISSOLVED (MG/L) 1.3
    4/9/2025 00094 LCRA 39.4 SPECIFIC CONDUCTANCE,FIELD (UMHOS/CM @ 25C) 499.0
    4/9/2025 00078 LCRA 0.3 TRANSPARENCY, SECCHI DISC (METERS) 2.9
    4/9/2025 00010 LCRA 39.4 TEMPERATURE, WATER (DEGREES CENTIGRADE) 12.0
    8/17/2021 00062 LCRA 0.3 ELEVATION, RESERVOIR SURFACE WATER IN FEET 666.2
    8/14/2006 89077 GSGS 1 TRANSPARENCY, SECCHI DISC (FEET) 10.0
    8/14/2006 00095 GSGS 20 SPECIFIC CONDUCTANCE (UMHOS/CM @ 25C) 463.0
    9/25/2003 82079 APLC 1.8 TURBIDITY,LAB NEPHELOMETRIC TURBIDITY UNITS, NTU 1.2
    9/3/2003 00403 GSGS 46.93 PH (STANDARD UNITS) LAB 7.8
    9/3/2003 00003 GSGS 46.93 SAMPLING STATION LOCATION, VERTICAL FEET 154.0
    4/10/2000 00076 LCRA 0.3 TURBIDITY,HACH TURBIDIMETER (FORMAZIN TURB UNIT) 1.8
    10/27/1997 00090 LCRA 51.21 OXIDATION REDUCTION POTENTIAL (MILLIVOLTS) 32.0
    8/25/1989 00064 TCEQ 0.3 DEPTH OF STREAM, MEAN (FT) 153.0
    3/24/1988 01351 TCEQ 45.8 FLOW:1=No Flow,2=Low,3=Normal,4=Flood,5=High,6=D 3.0
    Bacteria
    4/9/2025 31704 LCRA 0.3 E.COLI, COLILERT, IDEXX, HOLDING TIME 7.0
    4/9/2025 31699 LCRA 0.3 E. COLI, COLILERT, IDEXX METHOD, MPN/100ML < 1.0
    8/7/2001 31648 LCRA 0.3 E. COLI, MTEC, MF, #/100 ML 0.0
    8/7/2001 31616 LCRA 0.3 FECAL COLIFORM,MEMBR FILTER,M-FC BROTH, #/100ML 0.0
    Conventional Chemistry
    4/9/2025 70953 LCRA 0.3 CHLOROPHYLL-A, PHYTOPLANKTON UG/L, CHROMO-FLOURO 2.5
    4/9/2025 70507 LCRA 39.4 ORTHPHOSPHATE PHOSPHORUS,DISS,MG/L,FILTER >15MIN < 0.0
    4/9/2025 70294 LCRA 39.4 RESIDUE, TOT DISS,UNSPEC CALC BASED ON COND (MG/ 265.0
    4/9/2025 32213 LCRA 0.3 PHEOPHYTIN-A UG/L FLUOROMETRIC METHOD < 2.0
    4/9/2025 00945 LCRA 39.4 SULFATE (MG/L AS SO4) 21.4
    4/9/2025 00940 LCRA 39.4 CHLORIDE (MG/L AS CL) 44.5
    4/9/2025 00665 LCRA 39.4 PHOSPHORUS, TOTAL, WET METHOD (MG/L AS P) < 0.0
    4/9/2025 00625 LCRA 39.4 NITROGEN, KJELDAHL, TOTAL (MG/L AS N) 0.5
    4/9/2025 00610 LCRA 39.4 NITROGEN, AMMONIA, TOTAL (MG/L AS N) < 0.0
    4/9/2025 00530 LCRA 39.4 RESIDUE, TOTAL NONFILTRABLE (MG/L) 13.0
    4/9/2025 00410 LCRA 39.4 ALKALINITY, TOTAL (MG/L AS CACO3) 159.0
    2/26/2025 00630 LCRA 40 NITRITE PLUS NITRATE, TOTAL 1 DET. (MG/L AS N) 0.2
    8/12/2013 00680 LCRA 35.5 CARBON, TOTAL ORGANIC, NPOC (TOC), MG/L 3.9
    2/8/2011 00671 LCRA 49 ORTHPHOSPHATE PHOSPHORUS,DISS,MG/L,FLDFILT<15MIN < 0.0
    8/3/2009 32218 LCRA 0.3 PHEOPHYTIN-A UG/L SPECTROPHOTOMETRIC ACID. METH. < 2.0
    8/3/2009 32211 LCRA 0.3 CHLOROPHYLL-A UG/L SPECTROPHOTOMETRIC ACID. METH 5.0
    8/7/2007 70300 LCRA 53.7 RESIDUE,TOTAL FILTRABLE (DRIED AT 180C) (MG/L) 175.0
    9/16/2004 00535 APLC 1.8 RESIDUE, VOLATILE NONFILTRABLE (MG/L) < 1.0
    9/3/2003 70301 GSGS 46.93 SOLIDS, DISSOLVED-SUM OF CONSTITUENTS (MG/L) 253.0
    9/3/2003 39086 GSGS 46.93 ALKALNITY,WATER,DISS,INCR TIT,FIELD,ASCACO3,MG/L 175.0
    9/3/2003 00955 GSGS 46.93 SILICA, DISSOLVED (MG/L AS SIO2) 10.9
    9/3/2003 00950 GSGS 46.93 FLUORIDE, DISSOLVED (MG/L AS F) 0.2
    9/3/2003 00931 GSGS 46.93 SODIUM ADSORPTION RATIO 0.5
    9/3/2003 00900 GSGS 46.93 HARDNESS, TOTAL (MG/L AS CACO3) 200.0
    9/3/2003 00689 GSGS 1.82 CARBON, SUSPENDED ORGANIC - POC (MG/L) 0.4
    9/3/2003 00666 GSGS 46.93 PHOSPHORUS, DISSOLVED (MG/L AS P) 0.0
    9/3/2003 00660 GSGS 46.93 PHOSPHATE, ORTHO (MG/L AS PO4) 0.1
    9/3/2003 00631 GSGS 46.93 NITRITE PLUS NITRATE, DISS 1 DET. (MG/L AS N) 0.2
    9/3/2003 00623 GSGS 46.93 NITROGEN, KJELDAHL, DISSOLVED (MG/L AS N) 0.3
    9/3/2003 00618 GSGS 46.93 NITRATE NITROGEN, DISSOLVED (MG/L AS N) 0.2
    9/3/2003 00613 GSGS 46.93 NITRITE, DISSOLVED (MG/L AS N) 0.0
    9/3/2003 00608 GSGS 46.93 NITROGEN, AMMONIA, DISSOLVED (MG/L AS N) 0.1
    9/3/2003 00607 GSGS 46.93 NITROGEN, ORGANIC, DISSOLVED (MG/L AS N) 0.2
    9/3/2003 00605 GSGS 46.93 NITROGEN, ORGANIC, TOTAL (MG/L AS N) 0.2
    9/3/2003 00600 GSGS 46.93 NITROGEN, TOTAL (MG/L AS N) 0.4
    4/19/1999 46570 LCRA 53 HARDNESS, DISSOLVED, CALCULATED (MG/L AS CaCO3) 206.0
    6/28/1994 00615 TCEQ 0.3 NITRITE NITROGEN, TOTAL (MG/L AS N) 0.0
    6/28/1994 00440 TCEQ 0.3 BICARBONATE ION (MG/L AS HCO3) 132.0
    10/18/1993 00620 LCRA 48.77 NITRATE NITROGEN, TOTAL (MG/L AS N) < 0.0
    9/23/1993 00415 TCEQ 0.3 ALKALINITY, PHENOLPHTHALEIN (MG/L) 4.0
    6/1/1992 00335 LCRA 0.3 CHEMICAL OXYGEN DEMAND, .025N K2CR2O7 (MG/L) < 5.0
    6/1/1992 00310 LCRA 0.3 BIOCHEMICAL OXYGEN DEMAND (MG/L, 5 DAY - 20DEG C 2.0
    Metals in Water
    9/3/2003 00935 GSGS 46.93 POTASSIUM, DISSOLVED (MG/L AS K) 3.0
    9/3/2003 00930 GSGS 46.93 SODIUM, DISSOLVED (MG/L AS NA) 17.1
    9/3/2003 00925 GSGS 46.93 MAGNESIUM, DISSOLVED (MG/L AS MG) 19.7
    9/3/2003 00915 GSGS 46.93 CALCIUM, DISSOLVED (MG/L AS CA) 46.3
    8/11/1998 71890 LCRA 0.3 MERCURY DISSOLVED, IN WATER (UG/L) < 0.2
    8/11/1998 01145 LCRA 0.3 SELENIUM, DISSOLVED (UG/L AS SE) 5.8
    8/11/1998 01106 LCRA 0.3 ALUMINUM, DISSOLVED (UG/L AS AL) < 4.0
    8/11/1998 01090 LCRA 0.3 ZINC, DISSOLVED (UG/L AS ZN) < 4.0
    8/11/1998 01075 LCRA 0.3 SILVER, DISSOLVED (UG/L AS AG) < 1.0
    8/11/1998 01065 LCRA 0.3 NICKEL, DISSOLVED (UG/L AS NI) 14.3
    8/11/1998 01040 LCRA 0.3 COPPER, DISSOLVED (UG/L AS CU) < 2.0
    8/11/1998 01030 LCRA 0.3 CHROMIUM, DISSOLVED (UG/L AS CR) 5.0
    8/11/1998 01025 LCRA 0.3 CADMIUM, DISSOLVED (UG/L AS CD) < 1.0
    8/11/1998 01005 LCRA 0.3 BARIUM, DISSOLVED (UG/L AS BA) 60.9
    8/11/1998 01000 LCRA 0.3 ARSENIC, DISSOLVED (UG/L AS AS) < 2.0
    Metals in Sediment
    7/27/2005 71921 LCRA 54 MERCURY,TOT. IN BOT. DEPOS. (MG/KG) AS HG DRY WG < 0.1
    7/27/2005 01148 LCRA 54 SELENIUM, BOTTOM DEPOSITS (MG/KG AS SE DRY WT) < 0.3
    7/27/2005 01108 LCRA 54 ALUMINUM, BOTTOM DEPOSITS (MG/KG AS AL DRY WT 22300.0
    7/27/2005 01093 LCRA 54 ZINC, BOTTOM DEPOSITS (MG/KG AS ZN DRY WT) 57.8
    7/27/2005 01078 LCRA 54 SILVER, BOTTOM DEPOSITS (MG/KG AS AG DRY WT) < 0.5
    7/27/2005 01068 LCRA 54 NICKEL, TOTAL, BOTTOM DEPOSITS (MG/KG,DRY WT) 11.4
    7/27/2005 01053 LCRA 54 MANGANESE, BOTTOM DEPOSITS (MG/KG AS MN DRY WG 776.0
    7/27/2005 01052 LCRA 54 LEAD, BOTTOM DEPOSITS (MG/KG AS PB DRY WT) 15.2
    7/27/2005 01043 LCRA 54 COPPER, BOTTOM DEPOSITS (MG/KG AS CU DRY WT) 18.0
    7/27/2005 01029 LCRA 54 CHROMIUM,TOTAL, BOTTOM DEPOSITS (MG/KG,DRY WT 18.5
    7/27/2005 01028 LCRA 54 CADMIUM,TOTAL, BOTTOM DEPOSITS (MG/KG,DRY WT) < 0.1
    7/27/2005 01008 LCRA 54 BARIUM, BOTTOM DEPOSITS (MG/KG AS BA DRY WT) 164.0
    7/27/2005 01003 LCRA 54 ARSENIC, BOTTOM DEPOSITS (MG/KG AS AS DRY WT) 4.5
    Organics in Sediment
    7/27/2005 78924 LCRA 54 NONACHLOR, CIS, SEDIMENT, DRY WEIGHT, UG/KG < 5.0
    7/27/2005 78657 LCRA 54 TRANS-NONACHLOR, SEDIMENT, DRY WEIGHT, UG/KG < 5.0
    7/27/2005 39783 LCRA 54 GAMMA BHC (LINDANE), SEDIMENT, DRY WT (UG/KG) < 5.0
    7/27/2005 39519 LCRA 54 PCBS, BOTTOM DEPOSITS (UG/KG DRY SOLIDS) < 50.0
    7/27/2005 39514 LCRA 54 PCB-1016 IN BOTTOM SEDIMENTS DRY WT (UG/KG) < 50.0
    7/27/2005 39511 LCRA 54 PCB-1260 IN BOTTOM DEPOS. DRY SOLIDS (UG/KG) < 50.0
    7/27/2005 39507 LCRA 54 PCB 1254 IN BOTTOM DEPOS. (UG/KG DRY SOLIDS) < 50.0
    7/27/2005 39503 LCRA 54 PCB-1248 IN BOTTOM DEPOS. (UG/KG DRY SOLIDS) < 50.0
    7/27/2005 39499 LCRA 54 PCB-1242 BOT. DEP.,PCB-SERIES DRY SOL UG/KG < 50.0
    7/27/2005 39495 LCRA 54 PCB-1232 BOT. DEP.,PCB-SERIES DRY SOL (UG/KG) < 50.0
    7/27/2005 39491 LCRA 54 PCB-1221 BOT. DEP.,PCB SERIES DRY SOL UG/KG < 50.0
    7/27/2005 39481 LCRA 54 METHOXYCHLOR, BOTTOM DEPOSITS (UG/KG DRY SOL.) < 5.0
    7/27/2005 39423 LCRA 54 HEPTACHLOR EPOXIDE IN BOT. DEP. (UG/KG DRY SOL.) < 5.0
    7/27/2005 39413 LCRA 54 HEPTACHLOR IN BOT. DEP. (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39403 LCRA 54 TOXAPHENE IN BOTTOM DEPOS.(UG/KG DRY SOLIDS) < 50.0
    7/27/2005 39393 LCRA 54 ENDRIN IN BOTTOM DEPOS. (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39383 LCRA 54 DIELDRIN IN BOTTOM DEPOS. (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39333 LCRA 54 ALDRIN, BOTTOM DEPOS. (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39321 LCRA 54 P,P DDE, BOTTOM DEPOSITS (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39311 LCRA 54 P,P DDD, BOTTOM DEPOSITS (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39301 LCRA 54 P,P' DDT, BOTTOM DEPOSITS (UG/KG DRY SOLIDS) < 5.0
    7/27/2005 39076 LCRA 54 BHC-ALPHA ISOMER, BOTTOM DEPOS (UG/KG DRY SOL) < 5.0
    7/27/2005 39067 LCRA 54 CHLORDANE TRANS ISOMER, BOTTOM DEPOSITS UG/KG DR < 5.0
    7/27/2005 39064 LCRA 54 CHLORDANE CIS ISOMER, BOTTOM DEPOSITS(UG/KG DRY) < 5.0
    7/27/2005 34369 LCRA 54 ENDRIN ALDEHYDE DRY WTBOT UG/KG < 5.0
    7/27/2005 34354 LCRA 54 ENDOSULFAN SULFATE DRY WTBOTUG/KG < 5.0
    7/27/2005 34262 LCRA 54 DELTA BENZENE HEXACHLORIDE DRY WTBOTUG/KG < 5.0
    7/27/2005 34257 LCRA 54 B-BHC-BETA DRY WTBOTUG/KG < 5.0
    Other
    7/27/2005 81951 LCRA 54 TOTAL ORGANIC CARBON,NPOC(TOC), SED DRY WT,MG/KG 39700.0
    7/27/2005 81373 LCRA 54 SOLIDS IN SEDIMENT, PERCENT BY WEIGHT (DRY) 22.9
    7/27/2005 80256 LCRA 54 SEDIMENT PRTCL.SIZE CLASS >2.0MM GRAVEL %DRY WT 0.0
    7/27/2005 49925 LCRA 54 SEDIMENT PRCTL.SIZE CLASS 0.05-2.0MM,SAND,%DRYWT 27.5
    7/27/2005 49906 LCRA 54 PARTICLE SIZE, 0.05-0.002mm SILT, DRYWT,SEDIMENT 11.2
    7/27/2005 49900 LCRA 54 PARTICLE SIZE,CLAY0.002-0.0002mm DRYWT,SEDIMENT% 61.3
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