NAC445A.1456. Humboldt Region: Humboldt River, North Fork and tributaries at the national forest boundary.

The limits of this table apply to the bodies of water known as the North Fork of the Humboldt River and its tributaries in the Independence Mountain Range from their origin to the national forest boundary. This segment of the North Fork of the Humboldt River and tributaries is located in Elko County.

STANDARDS OF WATER QUALITY

Humboldt River, North Fork and tributaries at the national forest boundary

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
Aquatic Life Species of Concern
Temperature - °C ΔTb - °C		S.V. DT		≤ 20 = 0			*	X
pH - SU		S.V.		6.5 - 9.0	X	X	*	*		X		*
Dissolved Oxygen - mg/l		S.V.		≥ 6.0	X		*	X	X	X		X
Total Phosphorus (as P) - mg/l		S.V.		≤ 0.10			*	*	X	X
Total Ammonia (as N) - mg/l		c					*			X
Total Dissolved Solids - mg/l		S.V.		≤ 500 or the 95th percentile (whichever is less).	X	X				*
E. coli - No./100 ml		A.G.M. S.V.		≤ 126 ≤ 410				*	X
Fecal Coliform -No./100 ml		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, but the increase must not cause a violation of the single value standard.

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

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