Draft 2008 California 303(d)/305(b) Integrated Report

Supporting Information

Regional Board 9 - San Diego Region

Water Body Name:	Loveland Reservoir
Water Body ID:	CAL9093100020011025093606
Water Body Type:	Lake & Reservoir

DECISION ID	5139
Pollutant:	1,1,1-Trichloroethane
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5139

LOE ID:	1475
Pollutant:	1,1,1-Trichloroethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1,1-Trichloroethane is 0.200 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1476
Pollutant:	1,1,1-Trichloroethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1,1-Trichloroethane is 0.200 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5033
Pollutant:	1,1,2,2-Tetrachloroethane
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5033

LOE ID:	1495
Pollutant:	1,1,2,2-Tetrachloroethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1,2,2-Tetrachloroethane is 0.001 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1496
Pollutant:	1,1,2,2-Tetrachloroethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1,2,2-Tetrachloroethane is 0.001 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5140
Pollutant:	1,1,2-Trichloroethane
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5140

LOE ID:	1477
Pollutant:	1,1,2-Trichloroethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1,2-Trichloroethane is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1478
Pollutant:	1,1,2-Trichloroethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. 0 of 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1,2-Trichloroethane is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5141
Pollutant:	1,1-Dichloroethylene (DCE)/ Vinyldine Chloride
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5141

LOE ID:	1479
Pollutant:	1,1-Dichloroethylene (DCE)/ Vinyldine Chloride
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1-DCE is 0.006 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1480
Pollutant:	1,1-Dichloroethylene (DCE)/ Vinyldine Chloride
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,1-DCE is 0.006 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5143
Pollutant:	1,2,4-Trichlorobenzene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5143

LOE ID:	1483
Pollutant:	1,2,4-Trichlorobenzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,2,4-Trichlorobenzene is 0.07 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1484
Pollutant:	1,2,4-Trichlorobenzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for 1,2,4-Trichlorobenzene is 0.07 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5142
Pollutant:	1,2-Dichloroethylene,-trans
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5142

LOE ID:	1482
Pollutant:	1,2-Dichloroethylene,-trans
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for trans-1,2-Dichloroethylene is 0.01 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1481
Pollutant:	1,2-Dichloroethylene,-trans
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for trans-1,2-Dichloroethylene is 0.01 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4825
Pollutant:	Alachlor
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4825

LOE ID:	1515
Pollutant:	Alachlor
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Alachlor is 0.002 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1516
Pollutant:	Alachlor
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Alachlor is 0.002 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4788
Pollutant:	Antimony
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4788

LOE ID:	1530
Pollutant:	Antimony
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance. (SWRCB, 2003).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all waters with a municipal beneficial use, the WQO for Antimony is 0.006 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	One sample was collected in 07/1999 and one sample was collected in 02/2000. One sample was collected per year, giving a total of 2 samples.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4789
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4789

LOE ID:	1531
Pollutant:	Arsenic
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Arsenic is 0.05 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected once per year in 1999 and 2000, in 07/1999 and 02/2000. A total of 2 samples were collected.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4826
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4826

LOE ID:	1518
Pollutant:	Atrazine
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Atrazine is 0.003 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1517
Pollutant:	Atrazine
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Atrazine is 0.003 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4790
Pollutant:	Barium
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 4 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4790

LOE ID:	1532
Pollutant:	Barium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority from 1997 to 2000. None of the 4 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all water with a municipal beneficial use, the WQO for Barium is 1.0 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected from 1997 to 2000. One sample was collected per year in 12/1997, 06/1998, 07/1999, and 02/2000. A total of 4 samples were collected.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	5012
Pollutant:	Benzene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5012

LOE ID:	1490
Pollutant:	Benzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Benzene is 0.001 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1489
Pollutant:	Benzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Benzene is 0.001 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam, site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4796
Pollutant:	Beryllium
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4796

LOE ID:	1533
Pollutant:	Beryllium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance. (SWRCB, 2003).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all waters with a municipal beneficial use, the WQO for Beryllium is 0.004 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not recorded.
Temporal Representation:	Samples were collected in 07/1999 and 02/2000. One sample was collected per year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4797
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4797

LOE ID:	1534
Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Cadmium is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 07/1999 and 02/2000. One sample per year was collected, giving a total of 2 samples.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4827
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4827

LOE ID:	1520
Pollutant:	Carbofuran
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Carbofuran is 0.018 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1519
Pollutant:	Carbofuran
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Carbofuran is 0.018 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4732
Pollutant:	Chloride
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 8 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4732

LOE ID:	1548
Pollutant:	Chloride
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. None of the 8 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for chloride is 250 mg/L. This concentration is not to be exceeded more than 10% of the time during any one year period.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected from 1997 to 2000. One to three samples were collected per year. Samples were collected during the winter and summer months.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	5013
Pollutant:	Chlorobenzene (mono)
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5013

LOE ID:	1491
Pollutant:	Chlorobenzene (mono)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Chlorobenzene (mono) is 0.07 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1492
Pollutant:	Chlorobenzene (mono)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Chlorobenzene (mono) is 0.07 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4798
Pollutant:	Chromium (total)
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4798

LOE ID:	1535
Pollutant:	Chromium (total)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For waters with a municipal beneficial use, the WQO for total chromium is 0.05 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected once per year in 07/1999 and 02/2000. A total of 2 samples were collected.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4815
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 4 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4815

LOE ID:	1536
Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Samples were collected by Sweetwater Authority once per year from 1997 to 2000. None of the 4 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin plan: For inland surface waters with a municipal beneficial use, the WQO for Copper is 1.0 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 12/1997, 06/1998, 07/1999, and 02/2000. One sample was collected per year, giving a total of 4 samples.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	5152
Pollutant:	Dichloromethane
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5152

LOE ID:	1499
Pollutant:	Dichloromethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Dichloromethane is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1500
Pollutant:	Dichloromethane
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Dichloromethane is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5063
Pollutant:	Ethylbenzene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5063

LOE ID:	1497
Pollutant:	Ethylbenzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Ethylbenzene is 0.7 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1498
Pollutant:	Ethylbenzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Ethylbenzene is 0.7 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4731
Pollutant:	Fluoride
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 8 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4731

LOE ID:	1547
Pollutant:	Fluoride
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. None of the 8 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for Fluoride is 1.0 mg/L. This concentration is not to be exceeded more than 10% of the time during any one year period.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected from 1997 to 2000. One to three samples were collected per year. Samples were collected during the winter and summer months.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4816
Pollutant:	Iron
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. One of the 4 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4816

LOE ID:	1537
Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	1
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority once per year from 1997 to 2000. One of the 4 samples was in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for iron is 0.3 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 12/1997, 06/1998, 07/1999, and 02/2000. One sample was collected each year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4828
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4828

LOE ID:	1521
Pollutant:	Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Lindane is 0.0002 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1522
Pollutant:	Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Lindane is 0.0002 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4818
Pollutant:	Mercury
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4818

LOE ID:	1539
Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all waters with a municipal beneficial use, the WQO for Mercury is 0.002 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 07/1999 and 02/2000. One sample was collected per year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4868
Pollutant:	Molinate
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4868

LOE ID:	1524
Pollutant:	Molinate
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Molinate is 0.02 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1523
Pollutant:	Molinate
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Molinate is 0.02 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4819
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4819

LOE ID:	1540
Pollutant:	Nickel
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all waters with a municipal beneficial use, the WQO for Nickel is 0.1 mg/L
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 07/1999 and 02/2000. One sample was collected per year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4877
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4877

LOE ID:	1541
Pollutant:	Selenium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all waters with a municipal beneficial use, the WQO for Selenium is 0.05 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 07/1999 and 02/2000. One sample was collected each year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4708
Pollutant:	Silver
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 4 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4708

LOE ID:	1542
Pollutant:	Silver
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the Sweetwater Authority from 1997 to 2000. None of the 4 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for silver is 0.1 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 12/1997, 06/1998, 07/1999, and 02/2000. One sample was collected each year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4722
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 19 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4722

LOE ID:	1526
Pollutant:	Simazine
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	7
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 7 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Simazine is 0.004 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1525
Pollutant:	Simazine
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Simazine is 0.004 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4800
Pollutant:	Styrene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4800

LOE ID:	1505
Pollutant:	Styrene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Styrene is 0.1 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1506
Pollutant:	Styrene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Styrene is 0.1 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4733
Pollutant:	Sulfates
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 8 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4733

LOE ID:	1549
Pollutant:	Sulfates
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. None of the 8 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for sulfate is 250 mg/L. This concentration is not to be exceeded more than 10% of the time during any one year period.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected from 1997 to 2000. One to three samples were collected per year. Samples were collected during the winter and summer months.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4801
Pollutant:	Tetrachloroethylene/PCE
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4801

LOE ID:	1507
Pollutant:	Tetrachloroethylene/PCE
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Tetrachloroethylene is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1508
Pollutant:	Tetrachloroethylene/PCE
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Tetrachloroethylene is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4709
Pollutant:	Thallium
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 2 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4709

LOE ID:	1543
Pollutant:	Thallium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	2
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority in 1999 and 2000. None of the 2 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For all waters with a municipal beneficial use, the WQO for Thallium is 0.002 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 07/1999 and 02/2000. One sample was collected each year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4786
Pollutant:	Thiobencarb/Bolero
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4786

LOE ID:	1528
Pollutant:	Thiobencarb/Bolero
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Thiobencarb is 0.07 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1527
Pollutant:	Thiobencarb/Bolero
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Thiobencarb is 0.07 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4802
Pollutant:	Toluene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4802

LOE ID:	1510
Pollutant:	Toluene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Toluene is 0.15 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1509
Pollutant:	Toluene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Toluene is 0.15 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4730
Pollutant:	Total Dissolved Solids
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 8 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4730

LOE ID:	1546
Pollutant:	Total Dissolved Solids
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total Dissolved
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. None of the 8 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for TDS is 500. This concentration is not to be exceeded more than 10% of the time during any one year period.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected from 1997 to 2000. One to three samples were collected per year. Samples were collected during the winter and summer months.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4807
Pollutant:	Trichloroethylene/TCE
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4807

LOE ID:	1512
Pollutant:	Trichloroethylene/TCE
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Trichloroethylene is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1511
Pollutant:	Trichloroethylene/TCE
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Trichloroethylene is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4808
Pollutant:	Vinyl chloride
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4808

LOE ID:	1513
Pollutant:	Vinyl chloride
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for vinyl chloride is 0.0005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1514
Pollutant:	Vinyl chloride
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for vinyl chloride is 0.0005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4710
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	One line of evidence is available in the administrative record to assess this pollutant. None of the 4 samples exceed the Basin Plan criteria, and this does not exceed the allowable frequency of the Listing Policy. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4710

LOE ID:	1544
Pollutant:	Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. None of the 4 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for zinc is 5.0 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 12/1997, 06/1998, 07/1999, and 02/2000. One sample was collected each year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	5014
Pollutant:	cis-1,2-Dichloroethylene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5014

LOE ID:	1494
Pollutant:	cis-1,2-Dichloroethylene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for cis-1,2-Dichloroethylene is 0.006 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1493
Pollutant:	cis-1,2-Dichloroethylene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for cis-1,2-Dichloroethylene is 0.006 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam, site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5153
Pollutant:	meta-para xylenes
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5153

LOE ID:	1502
Pollutant:	meta-para xylenes
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Xylenes is 1.750 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:	MCL is for either a single isomer or the sum of the isomers. Incorporations by reference are prospective including future changes to the incorporated provisions as the changes take effect.
Guideline Reference:	Placeholder reference 2006 303(d)
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1501
Pollutant:	meta-para xylenes
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with municipal beneficial uses, the WQO for Xylenes is 1.750 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:	MCL is for either a single isomer or the sum of the isomers. Incorporations by reference are prospective including future changes to the incorporated provisions as the changes take effect.
Guideline Reference:	Placeholder reference 2006 303(d)
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5011
Pollutant:	o-Dichlorobenzene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5011

LOE ID:	1487
Pollutant:	o-Dichlorobenzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for o-Dichlorobenzene is 0.6 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1488
Pollutant:	o-Dichlorobenzene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for o-Dichlorobenzene is 0.6 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4799
Pollutant:	o-Xylene
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4799

LOE ID:	1503
Pollutant:	o-Xylene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with municipal beneficial uses, the WQO for Xylenes is 1.750 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:	MCL is for either a single isomer or the sum of the isomers. Incorporations by reference are prospective including future changes to the incorporated provisions as the changes take effect.
Guideline Reference:	Placeholder reference 2006 303(d)
Spatial Representation:	Samples were collected at the Loveland Reservoir near the dam site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1504
Pollutant:	o-Xylene
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with municipal beneficial uses, the WQO for Xylenes is 1.750 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:	MCL is for either a single isomer or the sum of the isomers. Incorporations by reference are prospective including future changes to the incorporated provisions as the changes take effect.
Guideline Reference:	Placeholder reference 2006 303(d)
Spatial Representation:	Samples were collected at the Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5010
Pollutant:	p-Dichlorobenzene (DCB)
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)(2006)
Revision Status	Original
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. None of the 21 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5010

LOE ID:	1486
Pollutant:	p-Dichlorobenzene (DCB)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	9
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. None of the 9 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for p-Dichlorobenzene is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet site 2.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1485
Pollutant:	p-Dichlorobenzene (DCB)
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	12
Number of Exceedances:	0
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. None of the 12 samples were in exceedance. (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for p-Dichlorobenzene is 0.005 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam, site 1.
Temporal Representation:	Samples were collected 1-2 times per day on one day every other month from 09/1998 to 09/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	4787
Pollutant:	Aluminum
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Sources:	Source Unknown
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Two of the 4 samples exceeded the Basin Plan criteria, and these exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4787

LOE ID:	1529
Pollutant:	Aluminum
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	2
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000, with one sample being collected per year. Two of the 4 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with a municipal beneficial use, the WQO for Aluminum is 0.2 mg/L.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 12/1997, 06/1998, 07/1999, and 02/2000. One sample was collected per year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	4817
Pollutant:	Manganese
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Sources:	Source Unknown
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Two of the 4 samples exceeded the Basin Plan criteria, and these exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 4817

LOE ID:	1538
Pollutant:	Manganese
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	4
Number of Exceedances:	2
Data and Information Type:	Not Specified
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. Two of the 4 samples were in exceedance. Two years had samples which exceeded 0.05 mg/L more than 10% of the time.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	The water quality objective for manganese in Loveland Reservoir is 0.05 milligrams/liter (mg/l) according to Basin Plan, Table 3-2 entitled, Water Quality Objectives. This concentration is not to be exceeded more than 10% of the time during any one year period.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected in 12/1997, 06/1998, 07/1999, and 02/2000. One sample was collected each year.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):

DECISION ID	5182
Pollutant:	Oxygen, Dissolved
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Sources:	Source Unknown
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Forty-five of the 72 samples exceeded the Basin Plan criteria, and these exceed the allowable frequency listed in Table 3.1 of the Listing Policy. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 5182

LOE ID:	1470
Pollutant:	Oxygen, Dissolved
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Dissolved
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:	Data were collected by the USGS every other month from 09/1998 to 09/1999. For all sampling dates, dissolved oxygen concentration decreased as the depth increased. For all sampling days except 01/07/1999, at least the top 4 meters had DO concentrations that met standards. For samples in 09/1998, standards were not met at depths greater than 4m. For 11/1998, standards were not met in water deeper than 10m. Standards were not met in 01/1999. Standards were met until the water reached 26m deep in 03/1999. In 05/1999, standards were not met in water deeper than 7m. Waters deeper than 5m did not meet standards in 07/1999 sampling. In 09/1999, waters deeper than 8m did not meet standards (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with all beneficial uses except MAR, WARM, and COLD , the WQO for Dissolved Oxygen is 7.0 (minimum) mg/L. The annual mean concentration is not to be less than this more than 10% of the time.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam. Samples were collected at depths of 0.1m to 50m.
Temporal Representation:	Samples were collected on one day, every other month from 09/10/1998 to 09/21/1999.
Environmental Conditions:
QAPP Information:	USGS: http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1471
Pollutant:	Oxygen, Dissolved
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Dissolved
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	72
Number of Exceedances:	45
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Data were collected by the USGS every other month from 09/1998 to 07/1999. For all sampling days, the DO concentration decreased as the water depth increased. For all sampling days, the dissolved oxygen concentration met standards at more shallow depths, but not in deeper waters. For all days, the top at least 3 meters met standards. Overall, including all depths, 45 of 72 samples were in exceedance (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters with all beneficial uses except MAR, WARM, and COLD, the WQO for Dissolved Oxygen is 7.0 (minimum) mg/L. The annual mean concentration is not to be less than this more than 10% of the time.
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet. Samples were collected at depths of 0.1m to 18.0 m.
Temporal Representation:	Samples were collected on one day, every other month from 09/10/1998 to 07/13/1999.
Environmental Conditions:
QAPP Information:	USGS: http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):

DECISION ID	5076
Pollutant:	pH
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	List on 303(d) list (TMDL required list)(2006)
Revision Status	Original
Sources:	Source Unknown
Expected TMDL Completion Date:	2019
Impairment from Pollutant or Pollution:	Pollutant
Weight of Evidence:	Based on the readily available data and information, the weight of evidence indicates that there is insufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. However, USEPA has decided to place this water body-pollutant combination on the 303(d) list of Water Quality Limited Segments. This conclusion is based on the staff findings that: 1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Thirty one of the 194 samples exceeded the Basin Plan criteria, and these do not exceed the allowable frequency listed in Table 3.2 of the Listing Policy. However, USEPA conducted their own assessment and found that there were greater than 10% exceedences of the Basin Plans numeric WQO for pH (35 out of 212) samples. 4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
RWQCB Board Decision / Staff Recommendation:	No new data were assessed for 2008. The decision has not changed.
SWRCB Board Decision / Staff Recommendation:	After review of the available data and information, SWRCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards for the pollutant are not exceeded.
USEPA Decision:	The USEPA final decision for the 2006 303(d) list was to list this water body segment for pH.

Lines of Evidence (LOEs) for Decision ID 5076

LOE ID:	1545
Pollutant:	pH
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	8
Number of Exceedances:	4
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Data were collected by Sweetwater Authority from 1997 to 2000. Four of the 8 samples were in exceedance.
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for pH is 6.5 (minimum) to 8.5 (maximum).
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir. Exact location was not reported.
Temporal Representation:	Samples were collected from 1997 to 2000. 1-3 samples were collected per year. Samples were collected during the winter and summer months.
Environmental Conditions:
QAPP Information:	Data used in 2002 assessment.
QAPP Information Reference(s):
LOE ID:	1472
Pollutant:	pH
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	141
Number of Exceedances:	16
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 09/1999. For all sampling days, there was a slight decrease in pH as the water depth increased. Overall, including samples at all recorded depths, 16 of 141 samples were in exceedance of the maximum standard. None of the samples were below the minimum standard (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for pH is 6.5 (minimum) to 8.5 (maximum).
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam. Samples were collected at depths of 0.1m to 50m.
Temporal Representation:	Samples were collected on one day, every other month, except for November from 09/10/1998 to 09/21/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):
LOE ID:	1474
Pollutant:	pH
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	212
Number of Exceedances:	35
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Available data indicate greater than 10% exceedences of Basin Plan numeric WQO for pH (35 out of 212) samples (USEPA, 2007).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for pH is 6.5 (minimum) to 8.5 (maximum).
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir near the dam. Samples were collected at depths of 0.1m to 50m.
Temporal Representation:	Samples were collected on one day, every other month, except for November from 09/10/1998 to 09/21/1999.
Environmental Conditions:
QAPP Information:	Data record: 1997-2000, USGS and Sweetwater Authority
QAPP Information Reference(s):
LOE ID:	1473
Pollutant:	pH
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None
Beneficial Use:	Municipal & Domestic Supply
Number of Samples:	53
Number of Exceedances:	15
Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Data were collected by the USGS from 09/1998 to 07/1999. For all sampling days, there was a slight decrease in pH as the water depth increased. Overall, including samples at all recorded depths, 15 of 53 samples were in exceedance of the maximum standard. None of the samples were below the minimum standard (USGS, 2002).
Data Reference:	Placeholder reference 2006 303(d)
Water Quality Objective/Criterion:	From the Basin Plan: For inland surface waters and all beneficial uses, the WQO for pH is 6.5 (minimum) to 8.5 (maximum).
Objective/Criterion Reference:	Placeholder reference 2006 303(d)
Evaluation Guideline:
Guideline Reference:
Spatial Representation:	Samples were collected at Loveland Reservoir at the east end near the source inlet. Samples were collected at depths of 0.1m to 18.0m.
Temporal Representation:	Samples were collected on one day every other month, except for November, from 09/1998 to 07/1999.
Environmental Conditions:
QAPP Information:	USGS :http://water.usgs.gov/owq/FieldManual/Data is from USGS Water Quality Monitoring Study.
QAPP Information Reference(s):