Draft California 2026 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 5 - Central Valley Region

Water Body Name:	Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
Water Body ID:	CAR5100000020101025232352
Water Body Type:	River & Stream

DECISION ID	89451	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Aldicarb
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89451, Aldicarb Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64005
Pollutant:	Aldicarb
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 9 samples exceed the criterion for Aldicarb.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses. (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin River Basin)
Objective/Criterion Reference:	Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins. 4th ed
Evaluation Guideline:	The Department of Public Health archived advisory level for aldicarb is 7 ug/L.
Guideline Reference:	CDPH Archived Advisory Levels for Drinking Water. Archived Advisory Levels are currently considered Notification Levels.
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89452	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Aldrin
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89452, Aldrin Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64006
Pollutant:	Aldrin
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Aldrin. Seven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The CTR objective for aldrin to protect human health from the consumption of water and organisms is 0.00013 ug/L.
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89453	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Arsenic
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89453, Arsenic Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64021
Pollutant:	Arsenic
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Arsenic.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for arsenic is 0.010 mg/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89533	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Atrazine
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89533, Atrazine Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64034
Pollutant:	Atrazine
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Atrazine.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for atrazine is 1 ug/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89534	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Cadmium
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89534, Cadmium Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64051
Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Cadmium.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for cadmium is 5 ug/L.
Objective/Criterion Reference:	Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins. 4th ed
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	100089	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Carbofuran
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 100089, Carbofuran Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64064
Pollutant:	Carbofuran
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Carbofuran.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for Carbofuran is 18 ug/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89535	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Copper
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89535, Copper Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64066
Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Copper.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California secondary maximum contaminant level for copper is 1.0 mg/L.
Objective/Criterion Reference:	Secondary Maximum Contaminant Levels and Compliance. CCR Title 22 section 64449.
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89536	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	DDT (Dichlorodiphenyltrichloroethane)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89536, DDT (Dichlorodiphenyltrichloroethane) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64083
Pollutant:	DDT (Dichlorodiphenyltrichloroethane)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed agvaiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: The reporting limit is greater than the criterion and, therefore, the sample results could not be assessed. 0 of 0 samples exceed the criterion for DDT (Dichlorodiphenyltrichloroethane).
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The criterion for total DDT to protect human health from consumption of water and organisms is 0.00059 ug/L (California Toxics Rule).
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89537	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Dieldrin
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89537, Dieldrin Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64101
Pollutant:	Dieldrin
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Dieldrin. Seven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The criterion for Dieldrin to protect human health from the consumption of water and organisms is 0.00014 ug/L (California Toxics Rule).
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89538	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Endosulfan sulfate
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89538, Endosulfan sulfate Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64120
Pollutant:	Endosulfan sulfate
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed agvaiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Endosulfan sulfate.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The Endosulfan Sulfate criterion for the protection of human health from consumption of water and organisms is 110 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88851	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Endrin
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88851, Endrin Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64121
Pollutant:	Endrin
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Endrin.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The Endrin criterion for the protection of human health from the consumption of water and organisms is 0.76 ug/L. (California Toxics Rule, 2000)
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88926	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Endrin aldehyde
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88926, Endrin aldehyde Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64137
Pollutant:	Endrin aldehyde
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed agvaiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Endrin Aldehyde.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	Total identifiable persistent chlorinated hydrocarbon pesticides shall not be present in the water column at concentrations detectable within the accuracy of analytical methods approved by the Environmental Protection Agency or the Executive Officer (Water Quality Control Plan, Central Valley Region, Sacramento River Basin and San Joaquin River Basin)
Objective/Criterion Reference:	Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins. 4th ed
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88927	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Glyphosate
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88927, Glyphosate Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64157
Pollutant:	Glyphosate
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Glyphosate.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for Glyphosate is 700 ug/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88928	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Heptachlor
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88928, Heptachlor Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64158
Pollutant:	Heptachlor
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Heptachlor. Seven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The CTR objective for Heptachlor to protect human health from the consumption of water and organisms is 0.00021 ug/L.
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88929	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Heptachlor epoxide
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88929, Heptachlor epoxide Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64175
Pollutant:	Heptachlor epoxide
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Heptachlor epoxide. Seven samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The CTR objective for Heptachlor epoxide to protect human health from the consumption of water and organisms is 0.0001 ug/L.
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88930	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88930, Lindane/gamma Hexachlorocyclohexane (gamma-HCH) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64178
Pollutant:	Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for HCH, gamma.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for HCH, gamma (Lindane) is 0.2 ug/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	100087	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Methoxychlor
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 100087, Methoxychlor Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64212
Pollutant:	Methoxychlor
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Methoxychlor.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for Methoxychlor, 30 ug/L, is incorporated by reference into the (Water Quality Control Plan, Central Valley Region, Sacramento and San Joaquin Basins).
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88931	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Nickel
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88931, Nickel Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64229
Pollutant:	Nickel
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Nickel.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for nickel is 0.1 mg/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88932	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Nitrate/Nitrite (Nitrite + Nitrate as N)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88932, Nitrate/Nitrite (Nitrite + Nitrate as N) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64231
Pollutant:	Nitrate/Nitrite (Nitrite + Nitrate as N)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Nitrate/Nitrite as N.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for nitrate + nitrite (as N) is 10.0 mg/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 2/17/2009-9/22/2009.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88933	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Nitrogen, Nitrate
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88933, Nitrogen, Nitrate Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64232
Pollutant:	Nitrogen, Nitrate
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Nitrate as N.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for nitrate (NO3 as N) is 10.0 mg/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 2/21/2008-1/26/2009.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	88934	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Nitrogen, Nitrite
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 88934, Nitrogen, Nitrite Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64242
Pollutant:	Nitrogen, Nitrite
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	1
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 1 of 10 samples exceed the criterion for Nitrite as N.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for nitrite (as N) is 1 mg/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-1/26/2009.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89004	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Oxamyl (Vydate)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89004, Oxamyl (Vydate) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	79471
Pollutant:	Oxamyl (Vydate)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	State Water Board staff assessed ILRP data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Oxamyl.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California Maximum Contaminant Level for Oxamyl incorporated by reference in the Water Quality Control Plan, Central Valley Region, Sacramento and San Joaquin Basins is 50 ug/L (Water Quality Control Plan, Central Valley Region, Sacramento and San Joaquin Basins).
Objective/Criterion Reference:	Water Quality Control Plan for the California Regional Water Quality Control Board Central Valley Region, Sacramento and San Joaquin River Basins. 4th ed
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [ Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed
QAPP Information Reference(s):

DECISION ID	89005	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Selenium
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89005, Selenium Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64008
Pollutant:	Selenium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Selenium.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for selenium is 0.05 mg/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	100088	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Simazine
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 100088, Simazine Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64011
Pollutant:	Simazine
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Simazine.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California primary maximum contaminant level for Simazine is 4 ug/L.
Objective/Criterion Reference:	Maximum Contaminant Levels for organic and inorganic chemicals. CCR Title 22
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89006	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Specific Conductivity
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89006, Specific Conductivity Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64119
Pollutant:	Specific Conductivity
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	17
Number of Exceedances:	4
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 4 of 17 samples exceed the criterion for Conductivity(Us).
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California secondary maximum contaminant levels for electrical conductivity provide a range of values including a recommended level (900 uS/cm), an upper level (1,600 uS/cm) and a short-term level (2,200 uS/cm). The recommended level of 900 uS/cm was used as it is protective of all drinking water uses.
Objective/Criterion Reference:	Secondary Maximum Contaminant Levels and Compliance. CCR Title 22 section 64449.
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/22/2009.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89007	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Toxaphene
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89007, Toxaphene Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64025
Pollutant:	Toxaphene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for Toxaphene. Six samples were not used in the assessment because the laboratory data reporting limit(s) was above the objective and therefore the results could not be quantified with the level of certainty required by the Listing Policy.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The Toxaphene criterion for the protection of human health from the consumption of water and organisms is 0.00073 ug/L. (California Toxics Rule, 2000)
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-8/18/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89008	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	Zinc
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89008, Zinc Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64027
Pollutant:	Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for Zinc.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The California secondary maximum contaminant level for zinc is 5.0 mg/L.
Objective/Criterion Reference:	Secondary Maximum Contaminant Levels and Compliance. CCR Title 22 section 64449.
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89009	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	alpha-Endosulfan (Endosulfan 1)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89009, alpha-Endosulfan (Endosulfan 1) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64019
Pollutant:	alpha-Endosulfan (Endosulfan 1)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed agvaiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Endosulfan I.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The Endosulfan I criterion for the protection of human health from consumption of water and organisms is 110 ug/L (California Toxics Rule, 2000).
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89010	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	alpha.-BHC (Benzenehexachloride or alpha-HCH)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89010, alpha.-BHC (Benzenehexachloride or alpha-HCH) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64018
Pollutant:	alpha.-BHC (Benzenehexachloride or alpha-HCH)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	0
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 0 samples exceed the criterion for HCH, alpha.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The HCH, alpha criterion, 0.0039 ug/L, is for the protection of human health from the consumption of water and organisms. (California Toxics Rule, 2002)
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89011	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	beta-BHC (Benzenehexachloride or beta-HCH)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89011, beta-BHC (Benzenehexachloride or beta-HCH) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64037
Pollutant:	beta-BHC (Benzenehexachloride or beta-HCH)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed Ag Waiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for HCH, beta.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The HCH, beta criterion for the protection of human health from the consumption of water and organisms is 0.014 ug/L (California Toxics Rule, 2002).
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.

DECISION ID	89539	Region 5
Grand Island Drain, south of confluence (in Delta Waterways, northern portion)

Pollutant:	beta-Endosulfan (Endosulfan 2)
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Regional Board Conclusion:	Data for this water segment-pollutant combination were received by the State Water Resources Control Board as part of the data solicitation for the 2014 Integrated Report Cycle. These data were not assessed as part of the 2014 Integrated Report.
Regional Board Decision Recommendation:	Data for this water segment - pollutant combination were not assessed by RWQCB staff during the 2014 Integrated Report cycle. RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list at this time. These data will be assessed by RWQCB staff during a future Integrated Report cycle to determine the applicable beneficial use support rating.
State Board Review of Regional Board Conclusion and Recommendation:
State Board Decision Recommendation:	After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.

Line of Evidence (LOE) for Decision ID 89539, beta-Endosulfan (Endosulfan 2) Region 5      Grand Island Drain, south of confluence (in Delta Waterways, northern portion)
LOE ID:	64048
Pollutant:	beta-Endosulfan (Endosulfan 2)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Water Board staff assessed agvaiver data for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Endosulfan II.
Data Reference:	Data for Various Pollutants in Sacramento Valley Water Quality Coalition, 2005-2009.
SWAMP Data:	Non-SWAMP
Water Quality Objective/Criterion:	The beta-endosulfan criterion for the protection of human health from consumption of water and organisms is 110 ug/L. (California Toxics Rule, 2000)
Objective/Criterion Reference:	Code of Federal Regulations 40 part 131.38 Establishment of numeric criteria for priority toxic pollutants for the State of California. 7/1/2011 Edition
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Data for this line of evidence for Grand Island Drain, south of confluence w west, middle, east forks, Sacramento County) was collected at 1 monitoring site [Grand Island Drain near Leary Road - 531XGIDLR]
Temporal Representation:	Data was collected over the time period 1/28/2008-9/16/2008.
Environmental Conditions:	Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information:	The Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition was followed.
QAPP Information Reference(s):	Quality Assurance Project Plan for Sacramento Valley Water Quality Coalition.