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 Nevada Administrative Code (Last Updated: January 6, 2015)
 Chapter445A Water Controls
  WATER POLLUTION CONTROL
  Standards for Water Quality

  NAC445A.2172. Colorado Region: Muddy River at the Wells Siding Diversion.  

Latest version.
  • The limits of this table apply to the body of water known as the Muddy River from the Glendale Bridge to the Wells Siding Diversion. This segment of the Muddy River is located in Clark County.

    STANDARDS OF WATER QUALITY

    Muddy River at the Wells Siding Diversion

    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

    Aquatic Life Species of Concern

    Temperature °C -

    ΔTb

    ΔT

    = 0°C

    15≤T≤30

    *

    ΔT

    ≤2°C

    pH Units

    S.V.

    ΔpH

    6.5 - 9.0

    ±0.5 Max.

    X

    X

    *

    X

    X

    X

    *

    Dissolved

    Oxygen - mg/l

    S.V.

    ≥5.0

    X

    *

    X

    X

    X

    Total Phosphorus

    (as P) - mg/l

    A-Avg.

    ≤0.3

    *

    X

    X

    Nitrogen Species

    (as N) - mg/l

    Nitrate S.V.

    Nitrite S.V.

    ≤90

    ≤5.0

    X

    *

    X

    X

    X

    Total Ammonia

    (as N) - mg/l

    c

    *

    Turbidity - NTU

    d

    *

    Color – PCU

    e

    *

    Total Dissolved

    Solids - mg/l

    f

    X

    *

    Alkalinity

    (as CaCO3) - mg/l

    < 25% change from natural conditions

    *

    X

    E. coli - No./100ml

    A.G.M.

    S.V.

    ≤ 126

    ≤ 410

    *

    X

    Fecal Coliform -

    No./100ml

    S.V.

    ≤ 1,000

    X

    *

    X

    X

    Fluoride (as total recoverable) – mg/l

    S.V.

    ≤ 2.6

    X

    *

    * = The most restrictive beneficial use.

    X = Beneficial use.

    a     Refer to NAC 445A.122 and 445A.2142 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 turbidity must not be more than 10 NTU above natural conditions.

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

    f     The salinity standard for the Colorado River System is specified in NAC 445A.1233.

     (Added to NAC by Environmental Comm’n by R083-08, eff. 8-26-2008; A by R131-12, 12-20-2012)