Nev. Admin. Code § 445A.1922 - Walker Region: Mason Valley Wildlife Management Area

The limits of this table apply to the body of water known as the Mason Valley Wildlife Management Area for all surface water impoundments, excluding Hinkson Slough, Bass Pond, Crappie Pond and North Pond. This segment of the Mason Valley Wildlife Management Area is located in Lyon County.

STANDARDS OF WATER QUALITY

Mason Valley Wildlife Management Area

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

Temperature - °C [DELTA]Tb - °C

S.V. [DELTA]T

<= 34 <= 3

*

X

pH - SU

S.V.

6.5 - 9.0

X

X

*

*

X

X

*

Dissolved Oxygen - mg/l

S.V.

>= 5.0

X

*

X

X

X

X

Total Phosphorus (as P) - mg/l

S.V.

<= 0.33

*

*

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 <= 576

*

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.1882 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.

Notes

Nev. Admin. Code § 445A.1922

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

NRS 445A.425, 445A.520