Statutes, codes, and regulations
Nevada Administrative Code
Chapter 445A - Water ControlsWATER POLLUTION CONTROL
Standards for Water Quality
Section 445A.1446 - Humboldt Region: Humboldt River at Imlay

Nev. Admin. Code § 445A.1446

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Current through November 8, 2024
Section 445A.1446 - Humboldt Region: Humboldt River at Imlay

The limits of this table apply to the body of water known as the Humboldt River from the Comus Gage to Imlay. This segment of the Humboldt River is located in Humboldt and Pershing Counties.

STANDARDS OF WATER QUALITY

Humboldt River at Imlay

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 [DELTA]Tb - °C [DELTA]T = 0 [DELTA]T [LESS THEN OR EQUAL TO] 2 * X
pH - SU A-Avg. S.V.7.0 - 8.57.0 - 8.7 S.V. [DELTA]pH6.5 - 9.0 ± 0.5 X X X * X X *
Dissolved Oxygen - mg/l S.V. [GREATER THEN OR EQUAL TO] 5.0 X * X X X X
Total Phosphorus (as P) - mg/l Apr-Nov Seasonal Avg. [LESS THEN OR EQUAL TO] 0.1 * X X X
Nitrogen species (as N) - mg/l Total Nitrogen Nitrate S.V. Nitrite S.V. [LESS THEN OR EQUAL TO] 10 [LESS THEN OR EQUAL TO] 1.0 X X X * X
A-Avg. S.V. Apr-Nov [LESS THEN OR EQUAL TO] 2.4 [LESS THEN OR EQUAL TO] 2.9
Total Ammonia (as N) - mg/lc *
Suspended Solids - mg/l Annual Median [LESS THEN OR EQUAL TO] 80d *
Turbidity - NTU S.V. [LESS THEN OR EQUAL TO] 50 * X
Color - PCUe No Adverse Effects *
Total Dissolved Solids - mg/l S.V. [LESS THEN OR EQUAL TO] 590 A-Avg. [LESS THEN OR EQUAL TO] 500 X X *
Chloride - mg/l A-Avg. S.V. [LESS THEN OR EQUAL TO] 70 [LESS THEN OR EQUAL TO] 85 S.V. [LESS THEN OR EQUAL TO] 250 X X * X
Sulfate - mg/l S.V. [LESS THEN OR EQUAL TO] 250 *
Sodium - SAR A-Avg. [LESS THEN OR EQUAL TO] 8 * 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 A.G.M. S.V. [LESS THEN OR EQUAL TO] 30 [LESS THEN OR EQUAL TO] 150 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.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. [LESS THEN OR EQUAL TO] 80 mg/l of suspended solids.

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

Nev. Admin. Code § 445A.1446

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