Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

NRTWQ Home >> Kansas >> View Data >> 06893100

USGS station:	Go to NWISWeb
Constituent:
Time period:
Model Form:

Model Form #1

log₁₀(ECB) = - 0.287 + 1.375 log₁₀(TURB)

where:

ECB is computed E. coli, in colonies per 100 milliliters
TURB is turbidity, YSI model 6136, in formazin nephelometric units

Model Calibration

Basic Data

Number of measurements:	21
Mean squared error:	0.43665664
Multiple R²:	0.74
Bias correction (smearing) factor:	2.15

Explanatory Variables

Variable	Value	Standard error
Intercept	-0.287	0.3773
log₁₀(TURB)	1.375	0.185

Correlation Matrix

	Intercept	log₁₀(TURB)
Intercept	1	-0.9241
log₁₀(TURB)	-0.9241	1

Reference

Rasmussen, T.J., Lee, C.J., and Ziegler, A.C., 2008, Estimation of Constituent Concentrations, Loads, and Yields in Streams of Johnson County, Northeast Kansas, Using Continuous Water-Quality Monitoring and Regression Models, October 2002 through December 2006: U.S. Geological Survey Scientific Investigations Report 2008-5014, 103 p.

Notes

sign of intercept does not match cited model, which is: logECB = 1.38log(Turb, YSI 6136)+0.287