Water Body Name: | Corcoran Lagoon |
Water Body ID: | 3047 |
Water Body Type: | Wetland, Freshwater |
Lines of Evidence (LOEs) for Decision ID 12565 |
LOE ID: | 18335 |
Pollutant: | Escherichia coli (E. Coli) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 6 |
Number of Exceedances: | 3 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 3 of 6 samples exceed the criterion for Escherichia coli. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
Water Quality Objective/Criterion: | USEPA Ambient Water Quality Criteria for Bacteria -1986. |
Objective/Criterion Reference: | Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002 |
Evaluation Guideline: | Single sample maximum allowable density for E. coli in freshwater is 235 MPN/100mL (as stated in Table 4, page 15) |
Guideline Reference: | Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002 |
Spatial Representation: | Data for this line of evidence for Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff, 304-CORCO-22 - Corcoran Lagoon at Live Oak Library] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/7/2005. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 18336 |
Pollutant: | Escherichia coli (E. Coli) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 6 |
Number of Exceedances: | 2 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 2 of 6 samples exceed the criterion for Escherichia coli. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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. E. coli is a fecal coliform. |
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 Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff, 304-CORCO-22 - Corcoran Lagoon at Live Oak Library] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/7/2005. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 19863 |
Pollutant: | Escherichia coli (E. Coli) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 2 |
Number of Exceedances: | 1 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for Escherichia coli. |
Data Reference: | Final Data File used for assessment: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
Water Quality Objective/Criterion: | USEPA Ambient Water Quality Criteria for Bacteria -1986. |
Objective/Criterion Reference: | Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002 |
Evaluation Guideline: | Single sample maximum allowable density for E. coli in freshwater is 235 MPN/100mL (as stated in Table 4, page 15) |
Guideline Reference: | Ambient Water Quality Criteria for Bacteria - 1986. EPA440/5-84-002 |
Spatial Representation: | Data for this line of evidence for Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 5/21/2003-3/15/2004. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): | |
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LOE ID: | 19864 |
Pollutant: | Escherichia coli (E. Coli) |
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: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Escherichia coli. |
Data Reference: | Final Data File used for assessment: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
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. E. coli is a fecal coliform. |
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 Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 5/21/2003-3/15/2004. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 12575 |
LOE ID: | 17893 |
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: | 5 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Monterey Area Research Consortium (R3_MARC) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 0 of 5 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: | Final Data File used for assessment: Marc Los Huertos Water Quality Data, file A |
Final Data File used for assessment: Marc Los Huertos Water Quality Data, file B | |
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 Corcoran Lagoon was collected at 2 monitoring sites [ RG-E - South end 21st Ave Live Oak beach, RG-E2 - East Cliff south bridge] |
Temporal Representation: | Data was collected over the time period 3/12/2006-5/11/2006. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | Regional Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 18199 |
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: | 7 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 0 of 7 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-22 - Corcoran Lagoon at Live Oak Library, 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/6/2006. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 19729 |
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 Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon 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: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
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 Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 10/10/2001-10/30/2001. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 12577 |
LOE ID: | 17616 |
Pollutant: | Turbidity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 5 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Monterey Area Research Consortium (R3_MARC) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 1 of 5 samples exceed the criterion for Turbidity(NTU). |
Data Reference: | Final Data File used for assessment: Marc Los Huertos Water Quality Data, file A |
Final Data File used for assessment: Marc Los Huertos Water Quality Data, file B | |
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 Corcoran Lagoon was collected at 2 monitoring sites [ RG-E - South end 21st Ave Live Oak beach, RG-E2 - East Cliff south bridge] |
Temporal Representation: | Data was collected over the time period 1/27/2006-5/11/2006. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | Regional Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 12576 |
LOE ID: | 19763 |
Pollutant: | Total Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Shellfish Harvesting |
Number of Samples: | 2 |
Number of Exceedances: | 1 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for Coliform, Total. |
Data Reference: | Final Data File used for assessment: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin Shellfish Harvesting objective (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries (page III-12)) states the following: At all areas where shellfish may be harvested for human consumption, the median total coliform concentration throughout the water column for any 30-day period shall not exceed 70 MPN/100mL, not shall more than ten percent of the samples collected during any 30-day period exceed 230 MPN/100mL for a five tube decimal dilution test. |
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 Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 5/21/2003-5/2/2005. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): | |
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LOE ID: | 17458 |
Pollutant: | Total Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Shellfish Harvesting |
Number of Samples: | 6 |
Number of Exceedances: | 6 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 6 of 6 samples exceed the criterion for Coliform, Total. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin Shellfish Harvesting objective (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries (page III-12)) states the following: At all areas where shellfish may be harvested for human consumption, the median total coliform concentration throughout the water column for any 30-day period shall not exceed 70 MPN/100mL, not shall more than ten percent of the samples collected during any 30-day period exceed 230 MPN/100mL for a five tube decimal dilution test. |
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 Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff, 304-CORCO-22 - Corcoran Lagoon at Live Oak Library] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/7/2005. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 12578 |
LOE ID: | 17670 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 11 |
Number of Exceedances: | 3 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Monterey Area Research Consortium (R3_MARC) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 3 of 11 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Marc Los Huertos Water Quality Data, file A |
Final Data File used for assessment: Marc Los Huertos Water Quality Data, file B | |
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 Corcoran Lagoon was collected at 1 monitoring site [ RG-E2 - East Cliff south bridge] |
Temporal Representation: | Data was collected over the time period 1/20/2006-5/11/2006. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | Regional Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 17669 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 11 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Monterey Area Research Consortium (R3_MARC) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 1 of 11 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Marc Los Huertos Water Quality Data, file A |
Final Data File used for assessment: Marc Los Huertos Water Quality Data, file B | |
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 Corcoran Lagoon was collected at 1 monitoring site [ RG-E2 - East Cliff south bridge] |
Temporal Representation: | Data was collected over the time period 1/20/2006-5/11/2006. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | Regional Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 17668 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 11 |
Number of Exceedances: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Monterey Area Research Consortium (R3_MARC) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 1 of 11 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Marc Los Huertos Water Quality Data, file A |
Final Data File used for assessment: Marc Los Huertos Water Quality Data, file B | |
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 Corcoran Lagoon was collected at 1 monitoring site [ RG-E2 - East Cliff south bridge] |
Temporal Representation: | Data was collected over the time period 1/20/2006-5/11/2006. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | Regional Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 19849 |
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: | 1 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
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 Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 10/10/2001-10/30/2001. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): | |
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LOE ID: | 19165 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 8 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 4 of 8 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-22 - Corcoran Lagoon at Live Oak Library, 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/6/2006. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
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LOE ID: | 19166 |
Pollutant: | pH |
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: | 3 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 3 of 8 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-22 - Corcoran Lagoon at Live Oak Library, 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/6/2006. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
| |
LOE ID: | 19164 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 8 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 4 of 8 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 Corcoran Lagoon was collected at 2 monitoring sites [ 304-CORCO-22 - Corcoran Lagoon at Live Oak Library, 304-CORCO-21 - Corcoran Lagoon At small bridge on East Cliff] |
Temporal Representation: | Data was collected over the time period 5/17/2003-5/6/2006. Coastal Watershed Council Snapshot Day Monitoring is conducted annually. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | State Board approved QAPP. Multiple errors were identified in data and were flagged or fixed by RB staff (in communication with Project staff) prior to assessment of data. |
QAPP Information Reference(s): | |
| |
LOE ID: | 19848 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 2 |
Number of Exceedances: | 2 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 2 of 2 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
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 Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 10/10/2001-10/30/2001. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): | |
| |
LOE ID: | 19847 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 2 |
Number of Exceedances: | 2 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Santa Cruz County Environmental Health Monitoring Program (R3_SCCEH) data for Corcoran Lagoon to determine beneficial use support and results are as follows: 2 of 2 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Santa Cruz County Environmental Health data 1971-1996 |
Final Data File used for assessment: Santa Cruz County Environmental Health data 1997-2006 | |
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 Corcoran Lagoon was collected at 1 monitoring site [ 304COM_SCC - CORCORAN L at MOUTH] |
Temporal Representation: | Data was collected over the time period 10/10/2001-10/30/2001. |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | This monitoring program has been underway for thirty years, with changes over time to protocols, level of QA, and documentation. In general, QA documentation included with the dataset is minimal. However, data quality appears to be reasonably good. |
QAPP Information Reference(s): |