The limits of this table apply to the body of water known as Marys River from the east line of T. 42 N., R. 59 E., M.D.B. & M., to its confluence with the Humboldt River. This segment of Marys River is located in Elko County.
STANDARDS OF WATER QUALITY
Marys River at the Humboldt River
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 | ||||||||
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 | ||||||||||
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.
Nev. Admin. Code § 445A.1484
NRS 445A.425, 445A.520