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

Supporting Information

Regional Board 8 - Santa Ana Region

Water Body Name:	Rathbone (Rathbun) Creek
Water Body ID:	CAR8017100019990211112232
Water Body Type:	River & Stream


DECISION ID	15899

Pollutant:	Arsenic
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Four (4) lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. 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 fifty-one (51) samples exceeded the California Toxics Rule Aquatic Life: Arsenic 4-day avg. 150 ug/l and 1-hr avg. 340 ug/l. 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:	After review of the available data and information, RWQCB staff concludes that though this water body is impaired for sediment toxicity, these water body-pollutant combinations should not be placed on the section 303(d) list because applicable water quality standards for these pollutants are not being exceeded

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15899


LOE ID:	26450

Pollutant:	Arsenic
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life: Arsenic 4-day avg. 150 ug/l, and 1-hr avg. 340 ug/l;
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The 4 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The 4 samples were taken on 6/8/94, 6/6/95, 8/14/95, and 7/29/98.
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data's quality is deemed acceptable because it was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26451

Pollutant:	Arsenic
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	16
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 16 samples collected, none exceeded the standards/guidelines listed.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life: Arsenic 4-day avg. 150 ug/l, and 1-hr avg. 340 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The 16 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The 16 samples were taken on 3/19/94, 1/23/95, 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 3/13/96, 10/30/96, 11/21/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98, 1/25/00.
Environmental Conditions:	The samples were collected during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26454

Pollutant:	Arsenic
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	15
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 15 samples collected none exceeded the standards/guidelines. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life: Arsenic 4-day avg. 150 ug/l and 1-hr avg. 340 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 15 samples were collected at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 15 samples were taken on 1/23/95, 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 3/13/96, 10/30/96, 11/19/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98, 1/25/00.
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26455

Pollutant:	Arsenic
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	16
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 16 samples collected, none exceeded the standards/guidelines listed.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life: arsenic 4-day avg. 150 ug/l and 1-hr avg. 340 ug/l;
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 16 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The 16 samples were taken on 3/19/94, 1/23/95/ 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 10/30/96,11/21/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98, 1/25/00.
Environmental Conditions:	The samples were collected in the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements
QAPP Information Reference(s):


DECISION ID	15901

Pollutant:	Iron
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Six lines of evidence are available in the administrative record to assess this pollutant. One (1) of the samples exceed the chronic recommended criteria. 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. One (1) of 31 samples exceeded the chronic EPA Recommended Water Quality Criteria and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. However the 54 samples that exceed the chronic criteria wre collected during the wet weather and wet weather samples should not be compared to chronic criteria. There are no acute criteria for iron. 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:	After review of the available data and information, RWQCB 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 being exceeded.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15901


LOE ID:	5899

Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	22
Number of Exceedances:	16

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 22 samples taken, 16 exceeded the reccomended criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity Chronic Reccomended criteria: iron 4-day avg. 1000 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The samples were taken at one station on the Rathbone Creek's southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were collected in the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5884

Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	20
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 20 samples taken, none exceeded the reccomended criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Reccomended chronic criteria for iron 4-day avg. 1000 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of the Sandalwood Drive's reinforced concrete box and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 thorugh 4/17/2000
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5902

Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	21
Number of Exceedances:	17

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 21 samples taken, 17 exceeded the reccomended criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Reccomended chronic criteria iron 4-day avg. 1000 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The 21 samples were taken at one station on the Rathbone Creek's southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting on 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26463

Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	USEPA National Ambient Water Quality Criteria Toxicity: iron 4-day avg. 1,000 ug/l
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The 4 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The 4 samples were taken on 6/8/94, 6/6/95, 8/14/95, and 7/29/98.
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	28287

Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	7
Number of Exceedances:	1

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 7 samples taken, 1 exceeded the reccomended criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity Chronic Reccomended criteria: iron 4-day avg. 1000 ug/l.
Guideline Reference:	National recommended water quality criteria: 2002. EPA-822-R-02-047 Washington, D.C. USEPA

Spatial Representation:	The samples were taken at one station on the Rathbone Creek's southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 6/8/94 through 7/29/98.
Environmental Conditions:	The samples were collected in the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5875

Pollutant:	Iron
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	23
Number of Exceedances:	21

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 23 samples taken, 21 exceeded the EPA's reccomended criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Reccomended Chronic Criteria Toxicity: iron 4-day avg. 1000 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of the Sandalwood Drive's reinforced concrete box and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/2000.
Environmental Conditions:	The samples were taken during the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


DECISION ID	15906

Pollutant:	Lead \| Silver \| Zinc
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Five lines of evidence are available for silver and zinc and six lines of evidence are available for lead in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. 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 sixty-two (62) samples for silver and zinc and none of sixty-nine (69) samples exceeded the California Toxics Rule 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:	After review of the available data and information, RWQCB 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 being exceeded.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15906


LOE ID:	5867

Pollutant:	Lead \| Silver \| Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	14
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 14 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective for toxicants: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life (this criteria varies according to hardness as follows): Lead: 1/23/95: 422.88 ug/l, 3/10/95: 178.67 ug/l, 12/12/95: 259.46 ug/l, 1/31/96: 197.31 ug/l, 2/19/96: 476.82 ug/l, 3/4/96: 461.70 ug/l, 3/13/96: 302.80 ug/l, 10/30/96: 248.85 ug/l, 11/19/96: 330.60 ug/l, 12/9/96: 235.73 ug/l, 11/26/97: 81.65 ug/l, 1/9/98: 222.76 ug/l, 2/3/98: 302.8 ug/l, 3/25/98: 136.8 ug/l. Silver: 1/23/95: 37.45 ug/l, 3/10/95: 11.69 ug/l, 12/12/95: 19.36 ug/l, 1/31/96: 13.37 ug/l, 2/19/96: 44.05 ug/l, 3/4/96: 42.17 ug/l, 3/13/96: 23.85 ug/l, 10/30/96: 18.30 ug/l, 11/19/96: 26.86 ug/l, 12/9/96: 17 ug/l, 11/26/97: 4.06 ug/l, 1/9/98: 15.75 ug/l, 2/3/98: 23.85 ug/l, 3/25/98: 8.15 ug/l. Zinc: 1/23/95: 358.04 ug/l, 3/10/95: 201.79 ug/l, 12/12/95: 258.66 ug/l, 1/31/96: 215.37 ug/l, 2/19/96: 387.83 ug/l, 3/4/96: 379.6 ug/l, 3/13/96: 286.68 ug/l, 10/30/96: 251.58 ug/l, 11/19/96: 303.94 ug/l, 12/9/96: 242.67 ug/l, 11/26/97: 119.82 ug/l, 1/9/98: 233.7 ug/l, 2/3/98: 286.68 ug/l, 3/25/98: 168.93 ug/l .
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 14 samples were taken at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were collected on: 1/23/95: , 3/10/95: , 12/12/95: , 1/31/96: , 2/19/96: , 3/4/96: , 3/13/96: , 10/30/96: , 11/19/96: , 12/9/96: , 11/26/97: , 1/9/98: , 2/3/98: , 3/25/98: .
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26456

Pollutant:	Lead \| Silver \| Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life: lead 6/8/94: 430.28 ug/l, 6/6/95: 343.28 ug/l, 8/14/95: 337.63 ug/l, 7/29/98: 330.60 ug/l; silver 6/8/94: 38.34 ug/l, 6/6/95: 28.26 ug/l, 8/14/95: 27.63 ug/l, 7/29/98:26.86 ug/l; zinc 6/8/94: 362.21 ug/l,6/6/95: 311.64 ug/l, 8/14/95: 308.22 ug/l 7/29/98: 303.94 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The 4 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The 4 samples were taken on 6/8/94, 6/6/95, 8/14/95, and 7/29/98.
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26465

Pollutant:	Lead
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	7
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 7 samples collected, none exceeded the standards/guidelines. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life (this criteria varies according to hardness as follows): Lead: 6/8/94: 371.81 ug/l, 8/16/94: 340.45 ug/l, 11/1/94: 327.8 ug/l, 6/6/95: 312.47 ug/l, 7/30/96: 262.12 ug/l, 8/20/97: 289.11 ug/l, 7/29/98: 289.11 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 7 samples were collected at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 7 samples were taken on 6/8/94, 8/16/94, 11/1/94, 6/6/95, 7/30/96, 8/20/97, 7/29/98.
Environmental Conditions:	The samples were taken during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5862

Pollutant:	Lead \| Silver \| Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	14
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 14 samples collected, none exceeded the standards.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life (this criteria varies according to hardness as follows) Lead: 1/23/95: 419.92 ug/l, 3/10/95: 193.55 ug/l,12/12/95: 234.42 ug/l, 1/31/96: 184.83 ug/l, 2/19/96: 476.82 ug/l, 3/4/96: 492.04 ug/l, 3/13/96: 387.71 ug/l, 10/30/96: 262.12 ug/l, 11/19/96: 330.60 ug/l, 12/9/96: 184.83 ug/l, 11/26/97: 136.80 ug/l, 1/9/98: 172.54 ug/l, 2/3/98: 302.80 ug/l, 3/25/98: 172.54 ug/l. Silver: 1/23/95: 37.1 ug/l, 3/10/95:13.03 ug/l, 12/12/95: 16.88 ug/l, 1/31/96: 12.24 ug/l, 2/19/96: 44.05 ug/l, 3/4/96: 45.96 ug/l, 3/13/96: 33.31 ug/l, 10/30/96: 19.63 ug/l, 11/19/96: 26.86 ug/l, 12/9/96: 12.24 ug/l, 11/26/97: 8.15 ug/l, 1/9/98: 11.15 ug/l, 2/3/98: 23.85 ug/l, 3/25/98: 11.15 ug/l. Zinc: 1/23/95: 356.38 ug/l, 3/10/95: 212.82 ug/l, 12/12/95: 241.77 ug/l, 1/31/96: 206.40 ug/l, 2/19/96: 387.83 ug/l, 3/4/96: 396.03 ug/l, 3/13/96: 337.94 ug/l, 10/30/96: 260.43 ug/l, 11/19/96: 303.94 ug/l, 12/9/96: 206.4 ug/l, 11/26/97: 168.93 ug/l, 1/9/98: 197.16 ug/l, 2/3/98: 286.68 ug/l, 3/25/98: 197.16 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 14 samples were taken at one station on the Rathbone Creek Southerly slope 200 feet west of Moonridge Road and Sand Canyon Road adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 14 samples were taken on the following dates: 1/23/95, 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 3/13/96, 10/30/96, 11/19/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98.
Environmental Conditions:	The samples were collected during the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5797

Pollutant:	Lead \| Silver \| Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	15
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 15 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District for their sewage treatment plant.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule (criterion changes from day to day because they are hardness dependent). Lead: 3/19/94: 651.25 ug/l, 1/23/95: 301.43 ug/l, 3/10/95: 207.41 ug/l, 12/12/95: 266.82 ug/l, 1/31/96; 248.85 ug/l, 2/19/96: 262.12 ug/l, 3/4/96: 289.11 ug/l, 3/13/96: 330.60 ug/l, 10/30/96: 71.40 ug/l, 11/21/96: 102.97 ug/l, 12/9/96: 184.83 ug/l, 11/26/97: 36.39 ug/l, 1/9/98: 197.31 ug/l, 2/3/98: 402.28 ug/l, 3/25/98: 184.83 ug/l; silver: 3/19/94:67.12 ug/l 1/23/95: 23.70 ug/l 3/10/95: 14.30 ug/l 12/12/95: 20.31 ug/l 1/31/96: 18.30 ug/l 2/19/96: 19.63 ug/l 3/4/96: 22.41 ug/l 3/13/96:26.86 ug/l,10/30/96: 3.39 ug/l, 11/21/96: 5.55 ug/l 12/9/96: 12.24 ug/l 11/26/97: 1.36 ug/l 1/9/98: 13.37 ug/l 2/3/98: 35.01 ug/l 3/25/98: 12.24 ug/l; zinc: 3/19/94:477.27 ug/l, 1/23/95: 285.81 ug/l, 3/10/95: 222.85 ug/l 12/12/95: 264.84 ug/l 1/31/96: 251.58 ug/l 2/19/96: 260.43 ug/l 3/4/96: 277.98 ug/l, 3/13/96: 303.94 ug/l, 10/30/96: 109.58 ug/l, 11/21/96: 139.83 ug/l, 12/9/96: 206.40 ug/l, 11/26/97: 69.97 ug/l, 1/9/98: 215.57 ug/l, 2/3/98: 346.36 ug/l, 3/25/98: 206.40 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 15 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The 15 samples were taken on 3/19/94, 1/23/95, 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 3/13/96, 10/30/96, 11/21/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98.
Environmental Conditions:	The samples were collected during the wet season's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5804

Pollutant:	Lead \| Silver \| Zinc
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	15
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 15 samples collected, none exceeded the standards/guidelines listed above.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life: i. Lead (in ug/L) 3/19/94:651.25; 1/23/95:301.43; 3/10/95:207.41; 12/12/95:266.82; 1/31/96:248.85; 2/19/96:262.12; 3/4/96:289.11; 3/13/96:330.60; 10/30/96:71.40; 11/21/96:102.97; 12/9/96:184.83; 11/26/97:36.39; 1/9/98:197.31; 2/3/98:402.28; 3/25/98:184.83 ii. Silver (in ug/L) 3/19/94:67.12; 1/23/95:23.7; 3/10/95:14.30; 12/12/95:20.31; 1/31/96:18.3; 2/19/96:19.63; 3/4/96:22.41; 3/13/96:26.86; 10/30/96:3.39; 11/21/96:5.55; 12/9/96:12.24; 11/26/97:1.36; 1/9/98:13.37; 2/3/98:35.01; 3/25/98:12.24 iii. Zinc (in ug/L) 3/19/94:477.27; 1/23/95:285.81; 3/10/95:222.85; 12/12/95:264.84; 1/31/96:251.58; 2/19/96:260.43; 3/4/96:277.98; 3/13/96:303.94; 10/30/96:109.58; 11/21/96:139.83; 12/9/96:206.4; 11/26/97:69.97; 1/9/98:215.57; 2/3/98:346.34; 3/25/98:206.4
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 15 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek; in the City of Big Bear Lake.
Temporal Representation:	The 15 samples were taken on March 19, 1994, January 23, 1995, March 10, 1995, December 12, 1995, January 31, 1996, February 19, 1996, March 4, 1996, March 13, 1996, October 30, 1006, November 21, 1996, December 9, 1996, November 26, 1997, January 9, 1998 February 3, 1998, and March 25, 1998.
Environmental Conditions:	The samples were collected in the wet weather by the San Bernardino County Flood Control District's Storm Water Program.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


DECISION ID	15902

Pollutant:	Mercury
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Six (6) lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. 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 65 samples exceeded the acute 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:	After review of the available data and information, RWQCB 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.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15902


LOE ID:	5794

Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	23
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 23 samples collected, none exceeded the acute recommended criteria.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Mercury acute 1-hr avg. 1.4 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/00.
Environmental Conditions:	The samples were collected in the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements
QAPP Information Reference(s):


LOE ID:	5800

Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	0
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the samples collected, none were used in the assessment because they were reported as non detect and the detection limit exceeded the acute criteria.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Mercury 1-hr avg. 1.4 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken beginning with 2/17/94 thorugh 4/17/2000
Environmental Conditions:	The samples were collected during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5886

Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	0
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 23 samples taken, all were reported as non detect and the detection limit was higher than the criteria so none of the samples were used for the assessment. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Mercury acute criteria 1.4 ug/l
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of the Sandalwood Drive's reinforced concrete box and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/00
Environmental Conditions:	The samples were collected during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5892

Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	21
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 21 samples taken, none exceeded the acute criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Mercury acute criteria 1.4 ug/l
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The samples were taken at one station on the Rathbone Creek's southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/00.
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26459

Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	0
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the samples collected, none were used in the assessment because these were reported as non detect and the detection limit exceeded the chronic criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	USEPA National Ambient Water Quality Criteria Toxicity: mercury 1-hr avg. 1.4 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The samples were taken on 6/8/94 through 7/29/98
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5861

Pollutant:	Mercury
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	21
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 21 samples collected none exceeded the acute criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	US EPA National Ambient Water Quality Criteria Toxicity: Mercury 1-hr avg. 1.4 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting on 2/17/94 through 4/17/00
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


DECISION ID	15904

Pollutant:	Selenium
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Four (4) lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. 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 forty-five (45) samples exceeded the National Toxics Rule Aquatic Life 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:	After review of the available data and information, RWQCB 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 being exceeded.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15904


LOE ID:	5798

Pollutant:	Selenium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	14
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 14 samples collected none exceeded the standard/guideline listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District for their sewage treatment plant.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	National Toxics Rule Aquatic Life: Selenium 4-day avg. 5 ug/l and 1-hr avg. 20 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The 14 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The 14 samples were taken on 3/19/94, 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 3/13/96, 10/30/96, 11/21/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98, 1/25/00.
Environmental Conditions:	The samples were collected during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26462

Pollutant:	Selenium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	National Toxics Rule Aquatic Life: Selenium 4-day avg. 5 ug/l, and 1-hr avg. 20 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The 4 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The 4 samples were taken on 6/8/94, 6/6/95, 8/14/95, and 7/29/98.
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements
QAPP Information Reference(s):


LOE ID:	5868

Pollutant:	Selenium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	13
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 13 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	National Toxics Rule Aquatic Life: Selenium 4-day avg. 5 ug/l and 1-hr avg. 20 ug/l.
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The 13 samples were taken at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 13 samples were taken on 3/10/95, 12/12/95, 1/31/96, 2/19/96, 3/4/96, 3/13/96, 10/30/96, 11/19/96, 12/9/96, 11/26/97, 1/9/98, 2/3/98, 3/25/98.
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5807

Pollutant:	Selenium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	14
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 14 samples collected, none exceeded the standards/guidelines listed above. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District for their municipal storm water program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Regions Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	NTR Aquatic Life: Selenium 4-day avg. 5 ug/L and 1-hr avg. 20 ug/L
Guideline Reference:	Compilation of Water Quality Goals

Spatial Representation:	The 14 samples were collected at one station on the southeast corner of Sandalwood Drive at the reinforced concrete box and Rathbone Creek; in the City of Big Bear Lake.
Temporal Representation:	The 14 samples were taken on March 19, 1994, March 10, 1995, December 12, 1995, January 31, 1996, February 19, 1996, March 4, 1996, March 13, 1996, October 30, 1996, November 21, 1996, December 9, 1996, November 26, 1997, January 9, 1998 February 3, 1998, March 25, 1998, and January 25, 2000.
Environmental Conditions:	The samples were collected during the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


DECISION ID	15905

Pollutant:	pH
Final Listing Decision:	Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status. Two lines of evidence are available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective. 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 four (4) samples exceeded the Basin Plan Objective and this does not exceed the allowable frequency listed in Table 3.2 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:	After review of the available data and information, RWQCB 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 being exceeded.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15905


LOE ID:	5808

Pollutant:	pH
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	3
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 3 samples collected, none exceeded the standards/guidelines listed above. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District's storm water program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan: The pH of inland surface waters shall not be raised above 8.5 or depressed below 6.5 as a result of controllable water quality factors.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	Santa Ana Region's Basin Plan: minimum 6.5 pH units and maximum 8.5 pH units.
Guideline Reference:	Water Quality Control Plan-Santa Ana Region

Spatial Representation:	The 3 samples were collected at one station on Rathbone Creek's southerly slope, 200 west of Moonridge Road and Sand Canyon Road, adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 3 samples were taken on July 30, 1996, August 20, 1997, and July 29, 1998.
Environmental Conditions:	The samples were collected during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5793

Pollutant:	pH
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	None

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	1
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Only one sample collected and it did not exceed the numerical objective range in the Basin Plan of 6.5 - 8.5 pH units. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District for its sewage treatment plant.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan: The pH of inland surface waters shall not be raised above 8.5 or depressed below 6.5 as a result of controllable water quality factors.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:
Guideline Reference:	Water Quality Control Plan-Santa Ana Region

Spatial Representation:	The one sample was collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek in the City of Big Bear Lake
Temporal Representation:	The one sample was collected on 7/29/98
Environmental Conditions:	The sample was a dry weather measurement
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


DECISION ID	15922

Pollutant:	Cadmium
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	Source Unknown
Expected TMDL Completion Date:	2021
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Seven lines of evidence are available in the administrative record to assess this pollutant. Twenty-eight (28) of the samples exceed the water quality objective. 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. Twenty-eight (28) of eighty-three (83) samples exceed the California Toxics Rule and this exceeds 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:	After review of the available data and information, RWQCB 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.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15922


LOE ID:	5788

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	0
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples collected, none were used in the assessment because these were reported as non detect and the detection limit was above the chronic criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life chronic criteria ranged from 0.6 to 0.7 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The 4 samples were taken on 6/8/94, 6/6/95, 8/14/95, and 7/29/98.
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5864

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	3
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 14 samples collected, only three were used in the assessment because only three had detection limits below the acute criteria and of these none exceeded the acute criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program. The translators in the CTR were used to translate the criteria from dissolved to total form.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life (this criteria varies according to hardness as follows): Cadmium: 3/10/95: 9.04 ug/l, 12/12/95: 12.58 ug/l, 1/31/96: 9.87 ug/l, 2/19/96: 21.58 ug/l, 3/4/96: 20.97 ug/l, 3/13/96: 14.43 ug/l, 10/30/96: 12.13 ug/l, 11/19/96: 15.6 ug/l, 12/9/96: 11.56 ug/l, 11/26/97: 4.52 ug/l, 1/9/98: 11 ug/l, 2/3/98: 14.43 ug/l, 3/25/98: 7.14 ug/l, 1/25/00: 13.27 ug/l.
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were collected at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were collected monthly starting with 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5872

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	2

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the samples collected, two exceeded the CTR acute criteria. The dissolved to total translators from the CTR were used in converting the dissolved criteria to total criteria.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life actue criteria varies with hardness as follows: 0.8 to 5 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were collected at one station on the southeast corner of the Sandalwood Drive's reinforced concrete box and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting on 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were taken during the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5880

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	5
Number of Exceedances:	2

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 5 samples taken, 2 exceeded the acute CTR criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program. The translators in the CTR were used to convert the dissolved criteria to total criteria.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life acute criteria ranged from 1.2 to 7 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were collected at one station on the southeast corner of the Sandalwood Drive's reinforced concrete box and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting on 2/17/94 through 4/17/2000.
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5896

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples taken, none exceeded the acute criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life acute criteria ranged from 3 to 8 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were taken at one station on the Rathbone Creek's southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were collected in the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5895

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 14 samples taken, 4 were used in the assessment because the detection limits were above the acute criteria and were also reported as non detect. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life acute criteria ranged from 3 ug/l to 8 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 14 samples were taken at one station on the Rathbone Creek's southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting on 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were collected in the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26473

Pollutant:	Cadmium
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	0
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 7 samples collected, none were used int the assessment because these were reported as non detect and the detection limit was above the criteria. standards/guidelines. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life chronic criteria ranged from 0.5 to 0.6 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 7 samples were collected at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 7 samples were taken on monthly since 1994 through 1998
Environmental Conditions:	The samples were taken during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


DECISION ID	15924

Pollutant:	Copper
Final Listing Decision:	List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision:	New Decision
Revision Status	Revised
Sources:	Source Unknown
Expected TMDL Completion Date:	2021
Impairment from Pollutant or Pollution:	Pollutant

Weight of Evidence:	This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status. Six (6) lines of evidence are available in the administrative record to assess this pollutant. Twelve (12) of the samples exceed the water quality objective. 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. Twelve of sixty-five (65) samples exceed the California Toxics Rule and this exceeds 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:	After review of the available data and information, RWQCB 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.

SWRCB Board Decision / Staff Recommendation:

USEPA Decision:

Lines of Evidence (LOEs) for Decision ID 15924


LOE ID:	26466

Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	21
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 21 samples collected, none exceeded the acute criteria. The translators in the CTR were used to convert the the dissolved criteria to total criteria.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life acute criteria ranged from 20 ug/l to 55 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were taken at one station on the Rathbone Creek Southerly slope 200 feet west of Moonridge Road and Sand Canyon Road adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were collected monthly starting with 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were collected during the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	5874

Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat
Aquatic Life Use:	Cold Freshwater Habitat

Number of Samples:	22
Number of Exceedances:	6

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 22 samples taken, 6 exceeded the acute criteria. The translators in the CTR were used to convert the dissolved criteria into a total criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life acute criteria ranged from 20 to 55 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were collected at one station on the southeast corner of the Sandalwood Drive's reinforced concrete box and Rathbone Creek in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 through 4/17/2000
Environmental Conditions:	The samples were taken during the wet weather's first flush.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26464

Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	7
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 7 samples collected, none exceeded the standards/guidelines. The translators in the CTR were used to convert the dissolved criteria to total criteria. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life chronic criteria ranged from 20 to 25 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 7 samples were collected at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The 7 samples were taken on 6/8/94, 8/16/94, 11/1/94, 6/6/95, 7/30/96, 8/20/97, 7/29/98.
Environmental Conditions:	The samples were taken during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26458

Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	22
Number of Exceedances:	4

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	The 22 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek; in the City of Big Bear Lake.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule acute criteria ranged from 8 to 62 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek; in the City of Big Bear Lake.
Temporal Representation:	The samples were taken monthly starting with 2/17/94 thorugh 4/17/2000
Environmental Conditions:	The samples were collected in the wet weather by the San Bernardino County Flood Control District's Storm Water Program.
QAPP Information:	The data's quality is appropriate. Non detects that were above the criteria were not included in the assessment..
QAPP Information Reference(s):


LOE ID:	26453

Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	21
Number of Exceedances:	2

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 21 samples collected, 2 exceeded the acute criteria. The translators in the CTR were used to convert the criteria from dissolved to total. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District Storm Water Program.
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Numeric Objective for Chlorine Residual: 0.1 mg/l. Santa Ana Region's Basin Plan Narrative Objective for toxicants: The concentrations of toxic pollutants in the water column, sediments, or biota shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	California Toxics Rule Aquatic Life acute criteria ranged from 13 to 45 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency

Spatial Representation:	The 21 samples were taken at one station on the Rathbone Creek southerly slope 200 feet west of Moonridge Road and Sand Canyon Road and adjacent to the golf course in the City of Big Bear Lake.
Temporal Representation:	The samples were collected monthly starting with 2/17/94 thorough 4/17/2000
Environmental Conditions:	The samples were taken during the wet weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):


LOE ID:	26452

Pollutant:	Copper
LOE Subgroup:	Pollutant-Water
Matrix:	Water
Fraction:	Total

Beneficial Use:	Cold Freshwater Habitat

Number of Samples:	4
Number of Exceedances:	0

Data and Information Type:	PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality:	Of the 4 samples collected, none exceeded the standards/guidelines listed. This data was obtained from the self monitoring reports submitted by San Bernardino County Flood Control District
Data Reference:	San Bernardino County Flood Control District data from storm water program.

Water Quality Objective/Criterion:	Santa Ana Region's Basin Plan Narrative Objective: The concentrations of toxic pollutants in the water column, sediments, or biota, shall not adversely affect beneficial uses.
Objective/Criterion Reference:	Water Quality Control Plan-Santa Ana Region

Evaluation Guideline:	CTR chronic criteria copper ranged from 23 ug/l to 28 ug/l
Guideline Reference:	Water Quality Standards 2000. Establishment of numeric criteria for priority toxic pollutants for the State of California: Rules and regulations. Federal Register Vol. 65, No. 97. Washington, D.C.: Environmental Protection Agency
	Compilation of Water Quality Goals

Spatial Representation:	The 4 samples were collected at one station on the southeast corner of Sandalwood Drive and Rathbone Creek: in the City of Big Bear Lake.
Temporal Representation:	The 4 samples were taken on 6/8/94, 6/6/95, 8/14/95, and 7/29/98.
Environmental Conditions:	The sample was collected as a grab during the dry weather.
QAPP Information:	The data was provided by an NPDES discharger in compliance with the permit's monitoring requirements.
QAPP Information Reference(s):