Nev. Admin. Code § 445A.1682 - Truckee Region: Truckee River at the state line

The limits of this table apply to the body of water known as the Truckee River at the California-Nevada state line. This segment of the Truckee River is located in Washoe County.

STANDARDS OF WATER QUALITY

Truckee River at the state line

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

All life stages of mountain whitefish, rainbow trout and brown trout.

Temperature - °C [DELTA]Tb - °C

[DELTA]T = 0

S.V. Nov-Mar S.V. Apr-May S.V. Jun S.V. Jul S.V. Aug S.V. Sep-Oct [DELTA]T

<= 7 <= 13 <= 17 <= 21 <= 22 <= 23 <= 2

*

X

pH - SU

S.V.

7.0 - 8.3

S.V. [DELTA]pH

6.5 - 9.0 ± 0.5

X

X

X

*

X

X

*

Dissolved Oxygen - mg/l

S.V. Nov-Mar S.V. Apr-Oct

>= 6.0 >= 5.0

X

*

X

X

X

X

Total Phosphates (as P) - mg/l

A-Avg.

<= 0.03

A-Avg.

<= 0.10

*

*

X

X

Ortho Phosphate (as P) - mg/l

S.V.

<= 0.01

S.V.

<= 0.05

*

*

X

X

Nitrogen Species (as N) - mg/l

Total Nitrogen

Nitrate S.V. Nitrite S.V.

<= 2.0 <= 0.04

*

*

X

X

A-Avg. S.V.

<= 0.3 <= 0.43

Total Ammonia (as N) - mg/l

c

*

Suspended Solids - mg/l

A-Avg.

<= 15.0

S.V.

<= 25

*

Turbidity - NTU

A-Avg. S.V.

<= 5.0 <= 9.0

S.V.

<= 10.00

*

X

Color - PCU

d

S.V.

<= 75

*

Total Dissolved Solids - mg/l

A-Avg. S.V.

<= 70.0 <= 85.0

A-Avg.

<= 500

X

X

*

Chloride - mg/l

A-Avg. S.V.

<= 7.0 <= 10.0

S.V.

<= 250

X

X

*

X

Sulfate - mg/l

A-Avg. S.V.

<= 7.0 <= 8.0

S.V.

<= 250

*

Sodium - SAR

A-Avg. S.V.

<= 0.5 <= 0.6

A-Avg.

<= 8

*

X

Alkalinity (as CaCO3) - mg/l

25% change from natural conditions

*

X

E. coli - No./100 ml

A.G.M. S.V.

<= 126 <= 410

*

X

Fecal Coliform -No./100 ml

A.G.M. S.V.

<= 30.0 <= 150.0

S.V.

<= 1,000

X

*

X

X

X

BOD - mg/l

A-Avg. S.V.

<= 2.5 <= 3.0

*

* = 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.

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

Notes

Nev. Admin. Code § 445A.1682

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