Nevada Administrative Code
Chapter 445A - Water Controls
WATER POLLUTION CONTROL
Standards for Water Quality
Section 445A.1472 - Humboldt Region: Little Humboldt River, North Fork at the national forest boundary

Universal Citation: NV Admin Code 445A.1472
Current through September 16, 2024

The limits of this table apply to the body of water known as the North Fork of the Little Humboldt River from its origin to the national forest boundary. This segment of the North Fork of the Little Humboldt River is located in Humboldt County.

STANDARDS OF WATER QUALITY

Little Humboldt River, North Fork 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 X
Aquatic Life Species of Concern Trout.
Temperature - °C [DELTA]Tb - °C S.V. [ LESS THEN OR EQUAL TO] 20 [DELTA]T = 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
Nitrate (as N) - mg/l S.V. [LESS THEN OR EQUAL TO] 10 X X * X
Nitrate (as N) - mg/l S.V. [LESS THEN OR EQUAL TO] 0.06 X * X X
Total Ammonia (as N) - mg/l c * X
Total Suspended Solids - mg/l S.V. [LESS THEN OR EQUAL TO] 25 *
Turbidity - NTU S.V. [LESS THEN OR EQUAL TO] 10 *
Color - PCU S.V. [LESS THEN OR EQUAL TO] 75 *
Total Dissolved Solids - mg/l S.V. [LESS THEN OR EQUAL TO] 500 or the 95th percentile (whichever is less). X X *
Chloride - mg/l 1-hr Avg. [LESS THEN OR EQUAL TO] 860d 96-hr Avg. [LESS THEN OR EQUAL TO] 230 X * X X
Sulfate - mg/l S.V. [LESS THEN OR EQUAL TO] 250 *
Alkalinity (as CaCO3) - mg/l S.V. [GREATER THEN OR EQUAL TO] 20 * X
E. coli - No./100 ml A.G.M. [LESS THEN OR EQUAL TO] 126 S.V. [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.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.

d One-hour and 96-hour average concentration limits may be exceeded only once every 3 years.

Added to NAC by Environmental Comm'n by R160-06, eff. 8-26-2008; A by R131-12, 12-20-2012; A by R130-15, eff. 4/4/2016

NRS 445A.425, 445A.520

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