Stream Redesignation Evaluation Report
Water Quality Standards Review

Oswayo Creek, Potter County
Water Chemistry1
November 20, 1996

Table 2
STATION 1OC 2BH 3HH 4LH 5BYH 6OC 11OC
Field Parameters
Temp (oC) 5.1 4.5 4.7 7.2 7.1 5.8 5.3
pH 7.6 7.7 8.3 8.2 7.9 7.8 7.8
Cond (mmhos) 72 62 46 69 59 63 66
Diss. O2 NO DATA DUE TO METER MALFUNCTION
Laboratory Parameters
pH 6.3 6.3 6.2 6.3 6.3 6.3 6.4
Alkalinity 17.2 14.2 10.6 17.8 12.6 15.2 15.6
Acidity 0 0 0 0 0 0 0
Hardness 22 21 14 22 18 17 17
T Diss. Sol. 36 36 50 52 98 92 58
Susp.Sol. <2 <2 <2 <2 <2 <2 <2
NH3 -N <.02 <.02 <.02 <.02 <.02 0.05 <.02
NO2 -N <.004 <.004 <.004 <.004 <.004 <.004 <.004
NO3 -N 0.75 0.31 0.35 0.24 0.77 0.51 0.59
Total P <.02 <.02 <.02 <.02 <.02 <.02 <.02
Ca 6.74 6.15 4.6 6.5 5.74 6.13 6.25
Mg 2.5 2.0 1.5 2.1 1.9 2.1 2.2
Cl 3.0 2.0 1.0 2.0 1.0 2.0 2.0
SO4 <10 11 <10 10 10 <10 <10
As* < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
As Diss* < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
Cd* < 0.2 < 0.2 < 0.2 < 0.2 0.5 < 0.2 < 0.2
Cd Diss* < 0.2 < 0.2 < 0.2 < 0.2 < 0.2 < 0.2 < 0.2
hex Cr* <10 <10 <10 <10 <10 <10 <10
Cr* <50 <50 <50 <50 <50 <50 <50
Cu* < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
Cu Diss* < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
Fe* 67 85 21 43 35 96 99
Pb* < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
Pb Diss* < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
Mn* < 10 < 10 < 10 < 10 < 10 < 10 < 10
Ni* < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
Ni Diss* < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
Zn* < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0
Zn Diss* < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0
Al* 44.2 60.5 31.4 54.2 42.4 52.3 43.9
fecal coliforms     10     20 20
1 - Except for pH & conductance and indicated otherwise,
all values are concentrations in mg/L

* - Concentrations in ug/L

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