Final California 2010 Integrated Report( 303(d) List/305(b) Report)

Supporting Information

Pollutant:	Sedimentation/Siltation
Final Listing Decision:	List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Revised
Sources:	Natural Sources \| Nonpoint Source \| Silviculture
TMDL Name:	Truckee River Sediment
TMDL Project Code:	175
Date TMDL Approved by USEPA:	09/16/2009
Impairment from Pollutant or Pollution:	Pollutant

Conclusion:	This listing is addressed in the "Total Maximum Daily Load for Sediment, Middle Truckee River Watershed" adopted by the Lahontan Water Board in May 2008. The State Water Board approved the TMDL in March 2009.

RWQCB Board Staff Decision:	If the USEPA approves the TMDL before the State Water Board takes action on a statewide Section 303(d) List, the Final Listing Decision for Gray Creek should be changed to "List on 303(d) list (being addressed by USEPA approved TMDL)."

SWRCB Board Staff Decision:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

USEPA Action (if applicable):

Line of Evidence (LOE) for Decision ID 5929, Sedimentation/Siltation	Region 6
Gray Creek (Nevada County)

LOE ID:

4612

Pollutant:

Sedimentation/Siltation

LOE Subgroup:

Pollutant-Water

Matrix:

Water

Fraction:

Not Recorded

Beneficial Use:

Cold Freshwater Habitat

Number of Samples:

Number of Exceedances:

Data and Information Type:

Not Specified

Data Used to Assess Water Quality:

Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.

Data Reference:

Water Quality Objective/Criterion:

Unspecified

Objective/Criterion Reference:

Evaluation Guideline:

Unspecified

Guideline Reference:

Spatial Representation:

Unspecified

Temporal Representation:

Unspecified

Environmental Conditions:

Unspecified

QAPP Information:

Unspecified

QAPP Information Reference(s):