Line of Evidence (LOE) for Decision ID 26648, Total Coliform
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Region 3 |
Gallighan Slough |
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LOE ID: |
13829 |
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Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
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Beneficial Use: |
Shellfish Harvesting |
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Number of Samples: |
9 |
Number of Exceedances: |
8 |
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Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 8 of 9 samples exceed the criterion for Coliform, Total. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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SWAMP Data: |
Non-SWAMP |
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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 (Basin Plan) - Central Coast Region (Region 3) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-11/18/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 26646, Turbidity
|
Region 3 |
Gallighan Slough |
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LOE ID: |
13733 |
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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: |
9 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 9 of 12 samples exceed the criterion for Turbidity(NTU). |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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SWAMP Data: |
Non-SWAMP |
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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 (Basin Plan) - Central Coast Region (Region 3) |
|
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 |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-7/1/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 26499, pH
|
Region 3 |
Gallighan Slough |
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LOE ID: |
13646 |
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Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
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Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for pH. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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SWAMP Data: |
Non-SWAMP |
|
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 (Basin Plan) - Central Coast Region (Region 3) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-7/1/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 26499, pH
|
Region 3 |
Gallighan Slough |
|
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LOE ID: |
13660 |
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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: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for pH. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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SWAMP Data: |
Non-SWAMP |
|
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 (Basin Plan) - Central Coast Region (Region 3) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-7/1/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 26499, pH
|
Region 3 |
Gallighan Slough |
|
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LOE ID: |
13645 |
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Pollutant: |
pH |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
8 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 0 of 8 samples exceed the criterion for pH. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
|
SWAMP Data: |
Non-SWAMP |
|
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 (Basin Plan) - Central Coast Region (Region 3) |
|
Evaluation Guideline: |
|
Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-7/1/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 28145, Pathogens
|
Region 3 |
Gallighan Slough |
|
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LOE ID: |
13795 |
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Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
9 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 3 of 9 samples exceed the criterion for Coliform, Fecal. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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SWAMP Data: |
Non-SWAMP |
|
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 (Basin Plan) - Central Coast Region (Region 3) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-11/18/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 28145, Pathogens
|
Region 3 |
Gallighan Slough |
|
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LOE ID: |
13796 |
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Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
9 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 1 of 9 samples exceed the criterion for Coliform, Fecal. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
|
SWAMP Data: |
Non-SWAMP |
|
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 (Basin Plan) - Central Coast Region (Region 3) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-11/18/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 28145, Pathogens
|
Region 3 |
Gallighan Slough |
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LOE ID: |
13676 |
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Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
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Number of Samples: |
9 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 4 of 9 samples exceed the criterion for Escherichia coli. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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SWAMP Data: |
Non-SWAMP |
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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 |
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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 |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-11/18/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
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Line of Evidence (LOE) for Decision ID 28145, Pathogens
|
Region 3 |
Gallighan Slough |
|
|
LOE ID: |
13677 |
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Pollutant: |
Escherichia coli (E. coli) |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Non-Contact Recreation |
|
Number of Samples: |
9 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Central Coast Watershed Studies (R3_CCOWS) data for Gallighan Slough to determine beneficial use support and results are as follows: 0 of 9 samples exceed the criterion for Escherichia coli. |
Data Reference: |
Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
|
SWAMP Data: |
Non-SWAMP |
|
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 (Basin Plan) - Central Coast Region (Region 3) |
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Evaluation Guideline: |
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Guideline Reference: |
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Spatial Representation: |
Data for this line of evidence for Gallighan Slough was collected at 1 monitoring site [ Buena Vista Rd] |
Temporal Representation: |
Data was collected over the time period 2/18/2003-11/18/2003. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
Data quality is good and Standard Operating Procedures are well documented in QAPP. However, data documentation is poor and replicate samples and other quality assurance measurements are not consistently documented in this data set. |
QAPP Information Reference(s): |
|