TABLE 5.

Physical and chemical water quality analyses of stream water samplesa

Stream water siteStream flow condition% Average recovery of modified and viable oocysts% Difference in recoveries for samples from the same sitepHSpecific conductance (μS/cm)Dissolved iron (mg/liter)Dissolved silica (mg/liter)Turbidity (NTU)Suspended sediment (mg/liter)Alkalinity (mg/liter)
Alabama 1Elevated207.8165<106.2393563
Alabama 2aElevated481468.086254.51.42.624
Alabama 2bElevated7.57.8961723.5155ND39
Colorado 1Effluent186.53,8503841526NDND
Colorado 2Elevated208.11,38024109.814189
Georgia 1Base9.6227.11861078.4141731
Georgia 1High127.11901257.15916520
Georgia 2High8.67.180708.29520221
IndianaElevated318.06626847.634ND223
IowaBase261597.590618171.841313
IowaHigh3.08.0751<1020208610244
LouisianaBase56877.846772171782149
LouisianaElevated226.81991449.1347464
NebraskaHigh2.91718.1545<10142,700778232
NebraskaBase378.4533<10159.113205
OhioElevated20797.8736NDND1.898ND
OhioHigh468.16328.07.31563234
South Carolina 1Base40297.1132515.62.23030
South Carolina 1Elevated306.31081437.55.17.021
South Carolina 2Elevated196.2481533.415455.0
TexasElevated15507.84477.04.0101287126
TexasBase257.3667187.83555100
Virginia 1Base177.1345537.87.33.060
Virginia 2Elevated388.0443153.68.39.8183
Washington 1aBase27208.032722221552112
Washington 1bBase228.0406<10307328136
Washington 2High137.372856.42810824
Wisconsin 1High187.5519364.9425378190
Wisconsin 2Base3268.3724137.31917202
Wisconsin 2High347.8714NDND15ND192
  • a ND, not determined.