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Water Quality

Comparison of 2012 water quality conditions to normal conditions *

Reach	Season	Stratum	TEMP	DO	COND	pH	TURB	SS	VSS	CHL	TN	NOX	NHX	TP	SRP
Key:	H = very high
	h = high
	. = normal
	L = low
	l = very low

Pool 4	Winter	POOL	.	.	.	.	.	.	H	.	.	.	.	l	l
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	L	l
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		LP	.	.	.	.	.	.	H	.	.	.	.	.	l
	Spring	POOL	.	.	.	.	l	.	.	.	.	.	.	.	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	l	l	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		LP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Summer	POOL	.	l	.	l	l	l	.	.	.	.	.	.	.
		MC	.	L	.	.	l	l	.	.	.	.	.	.	.
		SC	.	l	.	.	.	l	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		LP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Fall	POOL	.	.	.	H	l	.	.	.	.	l	.	.	.
		MC	.	.	.	H	.	.	.	.	.	.	.	.	.
		SC	.	.	.	H	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	.	l	.	.	.	.	l	.	.	.
		LP	.	.	.	H	.	.	.	.	.	l	.	.	.
			TEMP	DO	COND	pH	TURB	SS	VSS	CHL	TN	NOX	NHX	TP	SRP
Pool 8	Winter	POOL	.	.	.	.	l	l	.	.	.	.	.	L	.
		MC	.	.	.	.	.	.	.	.	.	.	.	l	.
		SC	.	.	.	.	.	.	.	.	.	.	.	l	.
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Spring	POOL	.	.	.	.	.	.	.	.	.	.	L	.	l
		MC	.	.	.	h	.	.	.	.	.	.	l	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	l
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Summer	POOL	.	.	.	.	.	.	.	.	.	.	.	.	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	l	.	l	l	l	l	.	.	.	.	.
	Fall	POOL	.	.	.	.	.	.	.	.	L	L	.	.	.
		MC	.	.	.	.	.	.	.	.	l	l	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	L	.	.	.
		IMP	.	.	.	.	.	.	.	.	l	l	.	.	L
			TEMP	DO	COND	pH	TURB	SS	VSS	CHL	TN	NOX	NHX	TP	SRP
Pool 13	Winter	POOL	.	.	.	.	.	.	.	.	.	.	L	L	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	l	.
		BWC	.	.	.	.	.	.	.	.	l	l	l	l	.
		IMP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Spring	POOL	.	.	.	.	.	.	.	.	.	.	l	.	l
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	l	l	.	.	.
		IMP	.	.	.	h	.	.	.	.	.	.	.	.	l
	Summer	POOL	.	.	l	.	.	.	.	.	.	.	.	.	.
		MC	.	.	L	.	.	.	.	.	l	.	.	.	.
		SC	.	.	L	.	.	.	.	.	.	L	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	l	.	.	.
		IMP	.	.	l	.	.	.	.	.	.	.	.	.	.
	Fall	POOL	.	.	.	H	.	.	.	h	l	L	l	l	l
		MC	.	h	.	H	l	.	.	.	.	l	.	.	.
		SC	.	h	.	H	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	h	.	.	.	.	.	L	.	.	.
		IMP	.	.	.	h	.	.	.	h	l	L	l	.	l
			TEMP	DO	COND	pH	TURB	SS	VSS	CHL	TN	NOX	NHX	TP	SRP
Pool 26	Winter	POOL	.	H	.	.	.	.	.	H	.	.	.	l	.
		MC	.	h	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	H	.	.	.	.	.
		BWC	h	.	.	.	.	.	.	.	.	.	.	.	.
		SL	H	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Spring	POOL	.	.	.	.	.	.	.	.	.	.	.	.	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SL	.	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Summer	POOL	.	.	l	l	l	l	.	.	L	L	.	.	.
		MC	h	.	l	l	.	l	.	.	L	L	.	.	.
		SC	.	.	L	L	l	l	.	.	L	L	.	.	.
		BWC	.	.	.	L	.	.	.	.	.	.	.	.	.
		SL	.	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	.	.	.	.	.	.	.	.	.	.	.
	Fall	POOL	.	.	.	.	L	l	.	.	L	L	.	.	.
		MC	.	.	.	.	.	.	.	.	L	L	.	.	.
		SC	.	.	.	h	.	.	.	.	L	L	.	.	.
		BWC	.	.	.	h	l	l	l	.	l	.	.	.	.
		SL	.	.	.	.	.	.	.	.	.	.	.	.	.
		IMP	.	.	.	h	.	.	.	.	.	.	.	.	.
			TEMP	DO	COND	pH	TURB	SS	VSS	CHL	TN	NOX	NHX	TP	SRP
Open River	Winter	POOL	.	.	.	.	.	.	.	.	.	.	.	.	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
	Spring	POOL	.	.	.	.	.	.	.	.	.	.	.	.	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	H	.	.	.	.	.	.	.	.
	Summer	POOL	.	.	.	.	.	.	.	.	L	L	.	.	.
		MC	.	.	.	.	.	.	.	.	L	L	.	.	.
		SC	h	.	.	.	.	.	.	.	.	.	.	.	.
	Fall	POOL	.	H	H	.	l	.	.	H	L	L	l	.	.
		MC	.	H	H	.	l	.	.	H	L	L	l	.	.
		SC	.	.	H	.	.	.	.	.	.	.	.	.	.
			TEMP	DO	COND	pH	TURB	SS	VSS	CHL	TN	NOX	NHX	TP	SRP
La Grange	Winter	POOL	.	.	.	.	.	.	.	.	.	.	.	.	.
		MC	.	.	.	.	.	.	.	.	.	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
		BWC	.	.	.	.	.	.	.	.	.	.	.	.	.
	Spring	POOL	H	L	.	.	.	.	.	.	.	.	.	.	.
		MC	h	L	.	.	.	.	.	.	.	.	.	.	.
		SC	h	l	.	.	.	.	.	.	.	.	.	.	.
		BWC	H	l	.	.	.	.	.	.	.	.	.	.	.
	Summer	POOL	.	.	.	.	.	.	.	.	l	.	.	.	.
		MC	.	.	.	.	.	.	.	.	l	.	.	.	.
		SC	.	.	.	.	.	.	.	.	.	.	.	.	.
		BWC	.	.	h	.	.	.	.	.	.	.	.	.	.
	Fall	POOL	.	.	h	.	l	l	.	.	L	L	l	.	.
		MC	.	.	.	.	L	L	l	.	L	L	.	.	.
		SC	.	.	.	.	.	l	.	.	.	.	.	.	.
		BWC	.	.	h	.	.	.	.	.	.	.	.	.	.

*Data acquired over a 15-yr period (1994-2009; data missing in 2003) was used to determine annual 95% upper confidence limits (UCL) and 95% lower confidence limits (LCL) of the mean for each variable/reach/episode/stratum. Estimates of the 95% upper and lower confidence limit for the year of interest (e.g., 2010; a year outside the 15-yr period), along with the median, were compared to the 15-yr annual extremes to determine unusual conditions. Estimates where the median was higher than the highest annual 15-yr UCL or lower than the lowest annual 15-yr LCL were "low" or "high," respectively. Estimates where the LCL was higher than the highest annual 15-yr UCL or the UCL was lower than the lowest annual 15-yr LCL were "very low" or "very high", respectively.

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