Statutes, codes, and regulations
Nevada Administrative Code
Chapter 445A - Water ControlsWATER POLLUTION CONTROL
Standards for Water Quality
Section 445A.1465 - Humboldt Region: South Fork Reservoir

Nev. Admin. Code § 445A.1465

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Current through November 8, 2024
Section 445A.1465 - Humboldt Region: South Fork Reservoir

The limits of this table apply to the entire body of water known as South Fork Reservoir. South Fork Reservoir is located in Elko County.

STANDARDS OF WATER QUALITY

South Fork Reservoir

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
DT = 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] 6.0c X * X X X X
Total Phosphorus (as P) - mg/l Avg. [LESS THEN OR EQUAL TO] 0.04d Jun- Sep * * X X
Total Nitrogen (as N) - mg/l Avg. [LESS THEN OR EQUAL TO] 0.52d Jun-Sep * * X X
Nitrite (as N) - mg/l S.V. [LESS THEN OR EQUAL TO] 0.06 X * X X
Total Ammonia (as N) - mg/l c * X
Chlorophyll a - µg/l Avg. [LESS THEN OR EQUAL TO] 10d Jun-Sep * * X 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 *
Secchi Depth - meters Avg. [GREATER THEN OR EQUAL TO] 4.0 Jun-Sep X * X X
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] 860f 96-hr [LESS THEN OR EQUAL TO] 230 Avg. 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 When reservoir is stratified, the dissolved oxygen criterion applies only to the epilimnion.

d June-September average for the entire reservoir within the upper meter of the water column. These nutrient criteria are considered attained if:

1 The chlorophyll a criterion is met regardless of the level of total phosphorus or total nitrogen; or

2 If chlorophyll a data are not available, both the total phosphorus and total nitrogen criteria are met.

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

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

Nev. Admin. Code § 445A.1465

Added to NAC by Environmental Comm'n by R103-14, eff. 12/22/2014

NRS 445A.425, 445A.520