EAGLE RIVER WATERSHED SNOWMELT RUNOFF SAMPLING
(Eagle River Watershed Retrospective Assessment Program)
A network of surface water-quality sites has been established in the Eagle River watershed as an aid in determining long-term trends. In water year 2003, the Eagle River Watershed Retrospective Assessment Program conducted a major ion and trace element sampling program during April-June 2003. Samples were collected to investigate natural and human factors influencing water-quality conditions during snowmelt runoff. Additional water-quality data for sites 09064600 Eagle River near Minturn, CO, and 09067005 Eagle River at Avon, CO, are published elsewhere in this report.
REMARKS.--The following remark codes may appear in the data tables below: e, estimated; E, estimated laboratory analysis value; M, presence of material verified but not quantified.
WATER-QUALITY RECORDS
WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
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Instan- taneous dis- charge, cfs (00061)
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Turbid- ity, wat unf lab, Hach 2100AN NTU (99872)
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Dis- solved oxygen, mg/L (00300)
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pH, water, unfltrd field, std units (00400)
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WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
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Specif. conduc- tance, wat unf uS/cm 25 degC (00095)
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Temper- ature, water, deg C (00010)
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Hard- ness, water, unfltrd mg/L as CaCO3 (00900)
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Calcium water, fltrd, mg/L (00915)
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Magnes- ium, water, fltrd, mg/L (00925)
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Potas- sium, water, fltrd, mg/L (00935)
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Sodium adsorp- tion ratio (00931)
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Sodium, water, fltrd, mg/L (00930)
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Alka- linity, wat flt inc tit field, mg/L as CaCO3 (39086)
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Bicar- bonate, wat flt incrm. titr., field, mg/L (00453)
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Carbon- ate, wat flt incrm. titr., field, mg/L (00452)
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WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
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Chlor- ide, water, fltrd, mg/L (00940)
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Fluor- ide, water, fltrd, mg/L (00950)
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Silica, water, fltrd, mg/L (00955)
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Sulfate water, fltrd, mg/L (00945)
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Residue water, fltrd, sum of consti- tuents mg/L (70301)
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Residue water, fltrd, tons/ acre-ft (70303)
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Residue water, fltrd, tons/d (70302)
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Alum- inum, water, fltrd, ug/L (01106)
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Arsenic water, fltrd, ug/L (01000)
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Cadmium water, fltrd, ug/L (01025)
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Chrom- ium, water, fltrd, ug/L (01030)
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WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
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Copper, water, fltrd, ug/L (01040)
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Iron, water, fltrd, ug/L (01046)
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Iron, water, unfltrd recover -able, ug/L (01045)
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Lead, water, fltrd, ug/L (01049)
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Mangan- ese, water, fltrd, ug/L (01056)
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Mangan- ese, water, unfltrd recover -able, ug/L (01055)
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Nickel, water, fltrd, ug/L (01065)
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Silver, water, fltrd, ug/L (01075)
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Zinc, water, fltrd, ug/L (01090)
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Zinc, water, unfltrd recover -able, ug/L (01092)
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