Statutes, codes, and regulations
Nevada Administrative Code
Chapter 445A - Water ControlsWATER POLLUTION CONTROL
Standards for Water Quality
Section 445A.1738 - Truckee Region: Ophir Creek at Washoe Lake

Nev. Admin. Code § 445A.1738

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Current through November 8, 2024
Section 445A.1738 - Truckee Region: Ophir Creek at Washoe Lake

The limits of this table apply to the body of water known as Ophir Creek from State Route 429 (old U.S. Highway 395) to Washoe Lake. This segment of Ophir Creek is located in Washoe County.

STANDARDS OF WATER QUALITY

Ophir Creek at Washoe Lake

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 Trout.
Temperature - °C [DELTA]Tb - °C S.V. [DELTA]T [LESS THEN OR EQUAL TO] 20 = 0 * X
pH - SU S.V.6.5 - 9.0 X X * * X X *
Dissolved Oxygen - mg/l S.V. [GREATER THEN OR EQUAL TO] 6.0 X * X X X X
Total Phosphorus (as P) - mg/l S.V. [LESS THEN OR EQUAL TO] 0.10 * * X X
Total Ammonia (as N) - mg/lc * X
Total Dissolved Solids - mg/l S.V. [LESS THEN OR EQUAL TO] 500 or the 95th percentile (whichever is less). X X *
E. coli - No./100 ml A.G.M. S.V. [LESS THEN OR EQUAL TO] 126 [LESS THEN OR EQUAL TO] 410 * X
Fecal Coliform - No./100 ml S.V. [LESS THEN OR EQUAL TO] 1,000 X * X X X

* = The most restrictive beneficial use.

X = Beneficial use.

a Refer to NAC 445A.122 and 445A.1622 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.

Nev. Admin. Code § 445A.1738

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