Kansas Real-Time Water Quality

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

Model Form #1

log₁₀(ECB) = 0.439 + 1.01 log₁₀(TURB)

where:

ECB is computed E. coli, in colonies per 100 milliliters
TURB is turbidity, YSI model 6026, in formazin nephelometric units

Model Calibration

Basic Data

Number of measurements:	23
Mean squared error:	0.289444
Multiple R²:	0.63
Bias correction (smearing) factor:	2.28

Explanatory Variables

Variable	Value	Standard error
Intercept	0.439	0.3791
log₁₀(TURB)	1.01	0.1798

Correlation Matrix

	Intercept	log₁₀(TURB)
Intercept	1	-0.9552
log₁₀(TURB)	-0.9552	1

Reference

Rasmussen, P.P., and Ziegler, A.C., 2003, Comparison and Continuous Estimates of Fecal Coliform and Escherichia Coli Bacteria in Selected Kansas Streams, May 1999 Through April 2002: U.S. Geological Survey Water-Resources Investigations Report 03-4056, 80 p.

Notes

This model is used to compute values at this station only from 1999 through 2006, the range of time when a 6026-model turbidity sensor was used. Beginning in 2007, a 6136-model turibidty sensor was installed, resulting in a change to the model.