Water Body Name: | Oso Flaco Lake |
Water Body ID: | CAL3121003020011121102545 |
Water Body Type: | Lake & Reservoir |
Lines of Evidence (LOEs) for Decision ID 14744 |
LOE ID: | 9673 |
Pollutant: | Ammonia (Unionized) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 12 samples exceed the criterion for Ammonia as N, Unionized. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin General Objective, Chapter III, Section II.A.2 (General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries) states that the discharge of wastes shall not cause concentrations of unionized ammonia (NH3) to exceed 0.025 mg/l (as N) in receiving waters (page III-4) . |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 2/3/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14746 |
LOE ID: | 9672 |
Pollutant: | Chlorophyll-a |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 16 |
Number of Exceedances: | 3 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 3 of 16 samples exceed the criterion for Chlorophyll a. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses (general objective for biostimulatory substances, Water Quality Control Plan, Central Coast Basin, Chapter III, Section II). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | |
Water quality standards table | |
Evaluation Guideline: | North Carolina Administrative code (NCAC), Title 15A - Environmental and Natural Resources, Subchapter 2B-Surface water and wetland standards, Rule 0211-Fresh surface water quality standards for class C waters (Class C is defined as freshwaters protected for secondary recreation, fishing, aquatic life including propagation and survival, and wildlife). Section 3(a) of Rule 0211 applies to all fresh surface waters and states that chlorophyll a is not to exceed 40 ug/L. |
Guideline Reference: | North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 1/12/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14747 |
LOE ID: | 16297 |
Pollutant: | Chlorpyrifos |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 1 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP_SWAMP Monitoring (04SW3001) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 1 of 1 samples exceed the criterion for Chlorpyrifos. |
Data Reference: | Final Data File used for assessment: SWAMP Toxicity Data 2001-06 |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | One hour average maximum concentration 0.025 ug/L as stated in Sipmann and Finlayson (2000). |
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected on a single day 2/28/2007. SWAMP toxicity monitoring includes both water samples (collected in both winter and summer) and sediment samples (collected in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14753 |
LOE ID: | 11602 |
Pollutant: | Fecal Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 15 |
Number of Exceedances: | 2 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 2 of 15 samples exceed the criterion for Coliform, Fecal. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for water contact recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: Fecal coliform concentration, based on a minimum of not less than five samples for any 30-day period, shall not exceed a log mean of 200 MPN/100 ml, nor shall more than ten percent of total samples during any 30-day period exceed 400 MPN/100 ml. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 1/12/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11603 |
Pollutant: | Fecal Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Coliform, Fecal. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for non-contact water recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: Fecal coliform concentration, based on a minimum of not less than five samples for any 30-day period, shall not exceed a log mean of 2000/100 ml, nor shall more than ten percent of samples collected during any 30-day period exceed 4000/100 ml. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 1/12/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14750 |
LOE ID: | 13465 |
Pollutant: | Dissolved oxygen saturation |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 8 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed RWQCB3 - Central Coast Ambient Monitoring Program (Lakes) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 8 of 12 samples exceed the criterion for Oxygen, Saturation. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: Median values should not fall below 85% saturation as a result of controllable water quality conditions. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 6 monitoring sites [ 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove] |
Temporal Representation: | Data was collected over the time period 9/7/2000-9/8/2000. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 13446 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 2 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: For waters not mentioned by a specific beneficial use, dissolved oxygen concentration shall not be reduced below 5.0 mg/l at any time. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 6/27/2000-9/6/2000. Diurnal monitoring conducted in summer months at all CCAMP monitoring sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 13464 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed RWQCB3 - Central Coast Ambient Monitoring Program (Lakes) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 12 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: For waters not mentioned by a specific beneficial use, dissolved oxygen concentration shall not be reduced below 5.0 mg/l at any time. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 6 monitoring sites [ 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove] |
Temporal Representation: | Data was collected over the time period 9/7/2000-9/8/2000. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 13444 |
Pollutant: | Dissolved oxygen saturation |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 4 of 15 samples exceed the criterion for Oxygen, Saturation. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: Median values should not fall below 85% saturation as a result of controllable water quality conditions. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 2/3/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 13443 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: For waters not mentioned by a specific beneficial use, dissolved oxygen concentration shall not be reduced below 5.0 mg/l at any time. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 2/3/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
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LOE ID: | 13462 |
Pollutant: | Dissolved oxygen saturation |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 2 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for Oxygen, Saturation. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: Median values should not fall below 85% saturation as a result of controllable water quality conditions. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 6/27/2000-9/6/2000. Diurnal monitoring conducted in summer months at all CCAMP monitoring sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14754 |
LOE ID: | 13463 |
Pollutant: | Turbidity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 2 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Turbidity(NTU). |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Sigler et al. (1984) states that turbidities of 25 NTU's or greater caused reduction in juvenile salmonid growth due to interference with their ability to find food. |
Guideline Reference: | Effects of chronic turbidity on density and growth of steelheads and coho salmon. Transactions of the American Fisheries Society 113:142-150 |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 6/27/2000-9/6/2000. Diurnal monitoring conducted in summer months at all CCAMP monitoring sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
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LOE ID: | 13466 |
Pollutant: | Turbidity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed RWQCB3 - Central Coast Ambient Monitoring Program (Lakes) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 12 samples exceed the criterion for Turbidity(NTU). |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Sigler et al. (1984) states that turbidities of 25 NTU's or greater caused reduction in juvenile salmonid growth due to interference with their ability to find food. |
Guideline Reference: | Effects of chronic turbidity on density and growth of steelheads and coho salmon. Transactions of the American Fisheries Society 113:142-150 |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 6 monitoring sites [ 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove] |
Temporal Representation: | Data was collected over the time period 9/7/2000-9/8/2000. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
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LOE ID: | 13445 |
Pollutant: | Turbidity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 8 |
Number of Exceedances: | 2 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 2 of 8 samples exceed the criterion for Turbidity(NTU). |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Sigler et al. (1984) states that turbidities of 25 NTU's or greater caused reduction in juvenile salmonid growth due to interference with their ability to find food. |
Guideline Reference: | Effects of chronic turbidity on density and growth of steelheads and coho salmon. Transactions of the American Fisheries Society 113:142-150 |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 4/10/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 15458 |
LOE ID: | 23955 |
Pollutant: | Vertebrate Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 1 |
Number of Exceedances: | 0 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP_SWAMP Monitoring (04SW3001) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceed the criterion for Toxicity, Pimephales promelas Survival (%) 7 days. Toxicity is defined by SWAMP (2004) as follows: Significant toxicity in the survival endpoint when compared to the negative control based on a statistical test with alpha of less than 5%, and less than the evaluation threshold (both criteria are met). |
Data Reference: | Final Data File used for assessment: SWAMP Toxicity Data 2001-06 |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction of survival of test organism relative to the control (alpha < 0.05) and test organism survival is 20% less than the control survival. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected on a single day 2/28/2007. SWAMP toxicity monitoring includes both water samples (collected in both winter and summer) and sediment samples (collected in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 24627 |
Pollutant: | Plant Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 1 |
Number of Exceedances: | 1 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP_SWAMP Monitoring (04SW3001) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 1 of 1 samples exceed the criterion for Toxicity, Selenastrum capricornutum Growth (Cell Density) 4 days. Toxicity is defined by SWAMP (2004) as follows: Significant toxicity in the survival endpoint when compared to the negative control based on a statistical test with alpha of less than 5%, and less than the evaluation threshold (both criteria are met). |
Data Reference: | Final Data File used for assessment: SWAMP Toxicity Data 2001-06 |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction in cell count of test organism relative to the control (alpha < 0.05) and cell count <80% of control. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected on a single day 2/28/2007. SWAMP toxicity monitoring includes both water samples (collected in both winter and summer) and sediment samples (collected in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 23947 |
Pollutant: | Invertebrate Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 1 |
Number of Exceedances: | 0 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP_SWAMP Monitoring (04SW3001) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceed the criterion for Toxicity, Ceriodaphnia dubia Survival (%) 7 days. Toxicity is defined by SWAMP (2004) as follows: Significant toxicity in the survival endpoint when compared to the negative control based on a statistical test with alpha of less than 5%, and less than the evaluation threshold (both criteria are met). |
Data Reference: | Final Data File used for assessment: SWAMP Toxicity Data 2001-06 |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction of survival of test organism relative to the control (alpha < 0.05) and test organism survival is 20% less than the control survival. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected on a single day 2/28/2007. SWAMP toxicity monitoring includes both water samples (collected in both winter and summer) and sediment samples (collected in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14756 |
LOE ID: | 11621 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 2 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for water contact recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: pH value shall neither be depressed below 6.5 nor raised above 8.3. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 6/27/2000-9/6/2000. Diurnal monitoring conducted in summer months at all CCAMP monitoring sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11622 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 2 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for non-contact water recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: pH value shall neither be depressed below 6.5 nor raised above 8.3. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 6/27/2000-9/6/2000. Diurnal monitoring conducted in summer months at all CCAMP monitoring sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11623 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 2 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: For waters not mentioned by a specific beneficial use, the pH value shall not be depressed below 7.0 or raised above 8.5. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 6/27/2000-9/6/2000. Diurnal monitoring conducted in summer months at all CCAMP monitoring sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11604 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 13 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 1 of 13 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for water contact recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: pH value shall neither be depressed below 6.5 nor raised above 8.3. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 2/3/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11605 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 13 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 1 of 13 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for non-contact water recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: pH value shall neither be depressed below 6.5 nor raised above 8.3. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 2/3/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11606 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 13 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Santa Maria (SantaMaria) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 13 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: For waters not mentioned by a specific beneficial use, the pH value shall not be depressed below 7.0 or raised above 8.5. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected over the time period 2/3/2000-3/1/2001. Santa Maria watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year. Toxicity monitoring is conducted twice during the rotation year (winter and summer) at a subset of sites. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11640 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 6 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed RWQCB3 - Central Coast Ambient Monitoring Program (Lakes) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 6 of 12 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin, General Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: For waters not mentioned by a specific beneficial use, the pH value shall not be depressed below 7.0 or raised above 8.5. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 6 monitoring sites [ 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove] |
Temporal Representation: | Data was collected over the time period 9/7/2000-9/8/2000. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11624 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 12 |
Number of Exceedances: | 6 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed RWQCB3 - Central Coast Ambient Monitoring Program (Lakes) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 6 of 12 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for water contact recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: pH value shall neither be depressed below 6.5 nor raised above 8.3. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 6 monitoring sites [ 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove] |
Temporal Representation: | Data was collected over the time period 9/7/2000-9/8/2000. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 11625 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 12 |
Number of Exceedances: | 6 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed RWQCB3 - Central Coast Ambient Monitoring Program (Lakes) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 6 of 12 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin objective for non-contact water recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: pH value shall neither be depressed below 6.5 nor raised above 8.3. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 6 monitoring sites [ 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL1b-Oso Flaco Lake Boardwalk at first alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove, 312OFL2b-Oso Flaco Lake Boardwalk at second alcove] |
Temporal Representation: | Data was collected over the time period 9/7/2000-9/8/2000. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 4604 |
LOE ID: | 29747 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Preservation of Rare & Endangered Species | Wildlife Habitat |
Number of Samples: | 0 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | CCAMP data collected monthly in Oso Flaco Lake between January 2000 and January 2001 show elevated Nitrate levels which likely contributed to the elevated chlorophyll a concentrations in the water column, wide swings in Dissolved Oxygen concentrations and pH levels. Photo documentation also shows nuisance aquatic vegetation and algae filling the lake in summer months. Nitrate ranged from 28.0 - 31.7 mg/L in monthly grab samples taken from the lake. Dissolved Oxygen measurements (including both monthly grab samples and a single summer time pre-dawn sampling event) ranged from 5.05 mg/L to 21.0 mg/L. This indicates not only depressed but also super saturated oxygen conditions. Chlorophyll a measurements ranged between <1.0 ug/L and 160 ug/L. Three of these measurements were above 40 ug/L, the evaluation guideline used in this assessment. |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Oso Flaco Lake vegetation photo | |
Oso Flaco Lake aquatic vegetation nuisance condition | |
Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Monthly grab samples collected at the culvert between Oso Flaco Lake and Little Oso Flaco Lake (312OFL). |
Temporal Representation: | Samples were collected by CCAMP staff between January 2000 and Febuary 2001. |
Environmental Conditions: | Measurements were taken and samples were collected from the down stream side of the culvert between the two lakes. Instream vegetation and algae are very dense in summer months. |
QAPP Information: | CCAMP data is collected following the SWAMP QAPP. |
QAPP Information Reference(s): | |
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LOE ID: | 699 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Groundwater Recharge |
Number of Samples: | 0 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | Sixteen samples were collected (CCAMP, 2004). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Basin Plan: Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses. |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | The 45 mg/L MCL for nitrates should be used. |
Guideline Reference: | Placeholder reference 2006 303(d) |
Spatial Representation: | There was one sampling station. |
Temporal Representation: | There were monthly sampling events. |
Environmental Conditions: | Fish kills, algae and other evidence of eutrophication have been witnessed by the RWQCB at this site. |
QAPP Information: | Central Coast Ambient Monitoring Program (CCAMP) QA/QC. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 14749 |
LOE ID: | 16720 |
Pollutant: | Diazinon |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 1 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP_SWAMP Monitoring (04SW3001) data for Oso Flaco Lake to determine beneficial use support and results are as follows: 0 of 1 samples exceed the criterion for Diazinon. |
Data Reference: | Final Data File used for assessment: SWAMP Toxicity Data 2001-06 |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | One hour average maximum concentration 0.16 ug/L as stated in Sipmann and Finlayson (2000). |
Guideline Reference: | Water quality criteria for diazinon and chlorpyrifos. Administrative Report 00-3. Rancho Cordova, CA: Pesticide Investigations Unit, Office of Spills and Response. CA Department of Fish and Game |
Spatial Representation: | Data for this line of evidence for Oso Flaco Lake was collected at 1 monitoring site [ 312OFL-Oso Flaco Lake at culvert] |
Temporal Representation: | Data was collected on a single day 2/28/2007. SWAMP toxicity monitoring includes both water samples (collected in both winter and summer) and sediment samples (collected in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 5400 |
LOE ID: | 700 |
Pollutant: | Dieldrin |
LOE Subgroup: | Pollutant-Tissue |
Matrix: | Tissue |
Fraction: | Total |
Beneficial Use: | Commercial or recreational collection of fish, shellfish, or organisms |
Number of Samples: | 3 |
Number of Exceedances: | 3 |
Data and Information Type: | Fish tissue analysis |
Data Used to Assess Water Quality: | Three out of 3 samples exceeded (TSMP, 2002). A total of 2 filet composite samples of bluegill and one filet composite of hitch were collected. Bluegill were collected from 1993. Hitch were collected 2001. The guideline was exceeded in all samples. |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Central Coast RWQCB Basin Plan: No individual pesticide or combination of pesticides shall reach concentrations that adversely affect beneficial uses. There shall be no increase in pesticide concentrations found in bottom sediments or aquatic life. |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | 2 ng/g (OEHHA Screening Value) (Brodberg & Pollock, 1999). |
Guideline Reference: | Placeholder reference 2006 303(d) |
Spatial Representation: | One station located in lake at foot of Oso Flaco Road. |
Temporal Representation: | Samples were collected 1993 and 2001. |
Environmental Conditions: | |
QAPP Information: | Toxic Substances Monitoring Program 1992-93 Data Report.
Environmental Chemistry Quality Assurance and Data Report for the Toxic Substances Monitoring Program, 2001-2002. Department of Fish and Game. |
QAPP Information Reference(s): |