Nevada Administrative Code (Last Updated: January 6, 2015) |
Chapter445A Water Controls |
WATER POLLUTION CONTROL |
Standards for Water Quality |
NAC445A.1914. Walker Region: Walker Lake.
- The limits of this table apply to the entire body of water known as Walker Lake. Walker Lake is located in Mineral County.
STANDARDS OF WATER QUALITY
Walker Lake
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
Aquatic Life Species of Concern
Tui chub, Tahoe sucker, and adult and juvenile Lahontan cutthroat trout.
Temperature - °C
ΔTb - °C
ΔT
≤ 2
*
pH - SU
S.V.
6.5 - 9.7
*
X
X
Dissolved Oxygen -
mg/l
S.V.
≥ 5d
*
X
X
X
Total Phosphates
(as P) - mg/l
S.V.
≤ 0.82
*
Nitrogen Species
(as N) - mg/l
Total Inorganic Nitrogen
Nitrate S.V.
Nitrite S.V.
≤ 90
≤ 0.06
*
X
S.V.
≤ 0.3
Total Ammonia
(as N) - mg/l
c
*
Suspended Solids -
mg/l
S.V.
≤ 25
*
E. coli - No./100 ml
A.G.M.
S.V.
≤ 126
≤ 235
*
X
* = The most restrictive beneficial use.
X = Beneficial use.
a Refer to NAC 445A.122 and 445A.1882 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 When lake is stratified, the dissolved oxygen applies only to the epilimnion.
(Added to NAC by Environmental Comm’n by R160-06, eff. 8-26-2008)