Nevada Administrative Code (Last Updated: January 6, 2015) |
Chapter445A Water Controls |
WATER POLLUTION CONTROL |
Standards for Water Quality |
NAC445A.1448. Humboldt Region: Humboldt River at Woolsey.
- The limits of this table apply to the body of water known as the Humboldt River from Imlay to Woolsey. This segment of the Humboldt River is located in Pershing County.
STANDARDS OF WATER QUALITY
Humboldt River at Woolsey
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
Warm-water fishery.
Temperature - °C
ΔTb - °C
ΔT
= 0
ΔT
≤ 2
*
X
pH - SU
A-Avg.
S.V.
7.0 - 8.9
7.0 - 9.0
S.V.
Δ pH
6.5 - 9.0
± 0.5
X
X
X
*
X
X
*
Dissolved Oxygen - mg/l
S.V.
≥ 5.0
X
*
X
X
X
X
Total Phosphorus
(as P) - mg/l
Apr-Nov
Seasonal Avg.
≤ 0.1
*
X
X
X
Nitrogen species
(as N) - mg/l
Nitrate S.V.
Nitrite S.V.
≤ 10
≤ 1.0
X
X
X
*
X
Total Ammonia
(as N) - mg/l
c
*
Suspended Solids - mg/l
Annual Median
≤ 80d
*
Turbidity - NTU
S.V.
≤ 50
*
X
Color - PCU
e
No Adverse Effects
*
Total Dissolved
Solids - mg/l
A-Avg.
S.V.
≤ 600
≤ 700
A-Avg.
≤ 1000
X
X
*
Chloride - mg/l
A-Avg.
S.V.
≤ 130
≤ 175
S.V.
≤ 250
X
X
*
X
Sulfate - mg/l
S.V.
≤ 250
*
Sodium - SAR
A-Avg.
≤ 8
*
X
E. coli - No./100 ml
A.G.M.
S.V.
≤ 126
≤ 235
*
X
Fecal Coliform -No./100 ml
A.G.M.
S.V.
≤ 100
≤ 200
S.V.
≤ 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.
c The ambient water quality criteria for ammonia are specified in NAC 445A.118.
d The maximum allowable point source discharge is S.V. ≤ 80 mg/l of suspended solids.
e Increase in color must not be more than 10 PCU above natural conditions.
(Added to NAC by Environmental Comm’n by R160-06, eff. 8-26-2008; A by R131-12, 12-20-2012)