NAC445A.1442. Humboldt Region: Humboldt River at Battle Mountain.

The limits of this table apply to the body of water known as the Humboldt River from the Palisade Gage to the Battle Mountain Gage. This segment of the Humboldt River is located in Eureka and Lander Counties.

STANDARDS OF WATER QUALITY

Humboldt River at Battle Mountain

PARAMETER	REQUIREMENTS TO MAINTAIN EXISTING HIGHER QUALITY			WATER QUALITY STANDARDS FOR BENEFICIAL USES		Beneficial Usea
						Livestock	Irrigation	Aquatic	Contact	Noncontact	Municipal	Industrial	Wildlife	Aesthetic	Enhance	Marsh
Beneficial Uses						X	X	X	X	X	X	X	X
Aquatic Life Species of Concern						Warm-water fishery.
Temperature - °C ΔTb - °C	ΔT	= 0		ΔT	≤ 2			*	X
pH - SU	A-Avg. S.V.		7.0 - 8.4 7.0 - 8.6	S.V. ΔpH	6.5 - 9.0 ± 0.5	X	X	X	*		X	X	*
Dissolved Oxygen - mg/l				S.V.	≥ 5.0	X		*	X	X	X		X
Total Phosphorus (as P) - mg/l				Apr-Nov Seasonal Avg.	≤ 0.1			*	X	X	X
Nitrogen species (as N) - mg/l	Total Nitrogen			Nitrate S.V. Nitrite S.V.	≤ 10 ≤ 1.0	X	X	X			*		X
	A-Avg. S.V. Apr-Nov		≤ 1.9 ≤ 4.0
Total Ammonia (as N) - mg/l				c				*
Suspended Solids - mg/l				Annual Median	≤ 80d			*
Turbidity - NTU				S.V.	≤ 50			*			X
Color - PCU	e			No Adverse Effects							*
Total Dissolved Solids - mg/l	A-Avg. S.V.		≤ 425 ≤ 520	A-Avg.	≤ 500	X	X				*
Chloride - mg/l	A-Avg. S.V.		≤ 50 ≤ 70	S.V.	≤ 250	X	X				*		X
Sulfate - mg/l				S.V.	≤ 250						*
Sodium - SAR				A-Avg.	≤ 8		*				X
E. coli - No./100 ml				A.G.M. S.V.	≤ 126 ≤ 410				*	X
Fecal Coliform -No./100 ml	A.G.M. S.V.		≤ 50 ≤ 200	S.V.	≤ 1,000	X	*			X	X		X

* = The most restrictive beneficial use.

X = Beneficial use.

^a     Refer to NAC 445A.122 and 445A.1432 for beneficial use terminology.

^b     Maximum allowable increase in temperature above water temperature at the boundary of an approved mixing zone.

^c     The ambient water quality criteria for ammonia are specified in NAC 445A.118.

^d     The maximum allowable point source discharge is S.V. ≤ 80 mg/l of suspended solids.

^e     Increase in color must not be more than 10 PCU above natural conditions.

     (Added to NAC by Environmental Comm’n by R160-06, eff. 8-26-2008; A by R131-12, 12-20-2012)