Nev. Admin. Code § 445A.2161
The limits of this table apply to the entire body of water known as Lake Las Vegas. Lake Las Vegas is located in Clark County.
STANDARDS OF WATER QUALITY
Lake Las Vegas
PARAMETER | REQUIREMENTS TO MAINTAIN EXISTING HIGHER QUALITY | WATER QUALITY CRITERIA TO PROTECT BENEFICIAL USES | Beneficial Usesa | ||||||||||
Livestock | Irrigation | Aquatic | Contact | Noncontact | Municipal | Industrial | Wildlife | Aesthetic | Enhance | Marsh | |||
Beneficial Uses | X | X | X | X | X | ||||||||
Aquatic Life Species of Concern. | Warm-water fish. | ||||||||||||
Temperature [DELTA]Tb - °C | [DELTA]T<=2 | * | |||||||||||
pH - SU | S.V. 6.5 - 9.0 | * | |||||||||||
Dissolved Oxygen -mg/L | S.V. >= 5.0c | * | |||||||||||
Chlorophyll a - µg/L | d | * | * | ||||||||||
Turbidity - NTU | S.V. <= 10e | * | |||||||||||
Total Dissolved Solids - mg/L | S.V. <= 2000f | * | |||||||||||
Fecal Coliform -No./100ml | S.V. <= 1,000 | * | |||||||||||
E. Coli - cfu/100 mL g | G.M. <= 126 S.V. <= 410 | * | |||||||||||
Toxic Materials | h | ||||||||||||
* = The most restrictive beneficial use.
a Refer to NAC 445A.122 and 445A.2142 for beneficial use terminology.
b Average temperature in the epilimnion should not exceed 2°C above ambient temperature (i.e., temperature in epilimnion of Lake Mead).
c Applies to the epilimnion when stratified, or average in water column during periods of nonstratification.
d The seasonal average chlorophyll-a concentration within 0-2.5 m, April through September, should not exceed 15 µg/L.
e Turbidity must not exceed that characteristic of natural conditions by more than 10 Nephelometric Turbidity Units (NTU).
f The salinity standards for the Colorado River system are specified in NAC 445A.1233.
g The geometric mean must not be exceeded in any 30-day period. The single value must not be exceeded in more than 10 percent of the samples collected within any 30-day period.
h The water quality criteria for toxic materials are specified in NAC 445A.1236.
The Commission recognizes that storm waters from Las Vegas Wash may enter Lake Las Vegas during storm and flashflood events and that localized exceedance of the standards may occur during such events.
Nev. Admin. Code § 445A.2161