|
LOE ID: |
12835 |
|
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: |
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 Diurnal Dissolved Oxygen Sampling (DO) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 0 of 1 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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected on a single day 10/1/1999. 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: |
12849 |
|
Pollutant: |
Dissolved oxygen saturation |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
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 Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 1 of 1 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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected on a single day 10/1/1999. 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: |
12635 |
|
Pollutant: |
Dissolved oxygen saturation |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
5 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 3 of 5 samples exceed the criterion for Oxygen, Saturation. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
|
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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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: |
12633 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold 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 CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 1 of 5 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
|
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, Cold Water Habitat Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: The dissolved oxygen concentration shall not be reduced below 7.0 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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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: |
12834 |
|
Pollutant: |
Oxygen, Dissolved |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Dissolved |
|
Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
|
Number of Samples: |
1 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Diurnal Dissolved Oxygen Sampling (DO) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 0 of 1 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, Cold Water Habitat Objective, Chapter III, Section II.A.2 General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries states the following: The dissolved oxygen concentration shall not be reduced below 7.0 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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected on a single day 10/1/1999. 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: |
12636 |
|
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: |
5 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 3 of 5 samples exceed the criterion for Oxygen, Saturation. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
|
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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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: |
12634 |
|
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 CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) 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: CCAMP Salinas Toxicity data |
|
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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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: |
12578 |
|
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: |
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 Diurnal Dissolved Oxygen Sampling (DO) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 1 of 1 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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected on a single day 10/1/1999. 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): |
|
DECISION ID |
10354 |
|
Pollutant: |
Nitrogen, ammonia (Total Ammonia) |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.1 of the Listing Policy. Under section 3.1 a single line of evidence is necessary to assess listing status.
One line of evidence is available in the administrative record to assess this pollutant. None of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. However, there are an insufficient number of samples to make a "use rating" decision. Central Coast Water Board staff require a minimum of 26 samples to make a "use rating" decision of Fully Supporting.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of 6 samples exceeded the evaluation guideline and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 10354 |
|
LOE ID: |
10028 |
|
Pollutant: |
Ammonia as Nitrogen |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Municipal & Domestic Supply |
|
Number of Samples: |
6 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Ammonia as N, Total. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
|
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: |
USEPA Health Advisory 2006 Edition of the Drinking Water Standards and Health Advisories (EPA 822-R-06-013, 2006). |
Objective/Criterion Reference: |
2006 edition of the drinking water standards and health advisories. EPA 822-R-03-013 |
|
Evaluation Guideline: |
EPA's Lifetime Health advisory level for total ammonia is 30.0 mg/L as stated on page 8 of the 2006 edition of the drinking water standards and health advisories. This Advisory Level is defined as "the concentration of a chemical in drinking water that is not expected to cause any adverse noncarcinogenic effects for up to ten days of exposure." |
Guideline Reference: |
2006 edition of the drinking water standards and health advisories. EPA 822-R-03-013 |
|
Spatial Representation: |
Data for this line of evidence for Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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): |
|
DECISION ID |
10361 |
|
Pollutant: |
Salinity |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.
One line of evidence is available in the administrative record to assess this pollutant. Neither of the samples exceed the water quality objective.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of 2 samples exceeded the objective and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 10361 |
|
LOE ID: |
12652 |
|
Pollutant: |
Salinity |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Agricultural Supply |
|
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 Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Salinity. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
|
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 concentrations of chemical constituents in amounts which adversely affect the agricultural beneficial use. Interpretation of adverse effect shall be as derived from the University of California Agricultural Extension Service guidelines provided in Table 3-3 (Central Coast Waterboard Basin Plan, Chapter III, Section II.A.2 Objectives for all Inland and Surface Waters, Enclosed Bays and Estuaries). In Table 3-3 of the Basin Plan (page III-8), water quality guidelines state that severe problems may occur when salinity exceeds 3.0 ppt in irrigation supply water. |
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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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): |
|
DECISION ID |
16087 |
|
Pollutant: |
Sediment Toxicity |
Final Listing Decision: |
Do Not List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Impairment from Pollutant or Pollution: |
Pollutant |
|
Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.6 of the Listing Policy. Under section 3.6 a single line of evidence is necessary to assess listing status for toxicity.
Two lines of evidence are available in the administrative record to assess this pollutant in sediment samples. One of the 2 samples were toxic to invertebrate test organisms (exhibit a significant increase in mortality compared to the laboratory control) and therefore do not exceed the narrative General Objective for toxicity, set to protect for aquatic life beneficial uses.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. However, there are an insufficient number of samples to make a "use rating" decision. Central Coast Water Board staff require a minimum of 16 samples to make a "use rating" decision of Fully Supporting.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. One of the 2 samples were toxic to invertebrate test organisms and this does not exceed the allowable frequency in table 3.1 of the listing policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
|
RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded. |
|
SWRCB Board Decision / Staff Recommendation: |
|
|
USEPA Decision: |
|
|
|
Lines of Evidence (LOEs) for Decision ID 16087 |
|
LOE ID: |
23551 |
|
Pollutant: |
Invertebrate Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
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: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Don Westin Toxicity study (R3_Weston) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for Toxicity, Hyalella azteca Survival (%) 10 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: Don Weston Salinas Toxicity Data
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Final Data File used for assessment: Don Weston_Salinas CCMP Data
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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 |
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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)
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Spatial Representation: |
Data for this line of evidence for Alisal Creek (Salinas) was collected at 2 monitoring sites [ 309SA1 - Alisal Creek at Old Stage Road, 309SA2 - Alisal Creek at Alisal Road] |
Temporal Representation: |
Data was collected on a single day 9/23/2005. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
No QAPP was prepared specifically for this project. However the work was conducted consistent with an approved QAPP from a previous project. That QAPP is available upon request. |
QAPP Information Reference(s): |
e-mail clarifying QAPP information |
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LOE ID: |
23550 |
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Pollutant: |
Invertebrate Toxicity |
LOE Subgroup: |
Toxicity |
Matrix: |
Sediment |
Fraction: |
None |
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Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
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Number of Samples: |
2 |
Number of Exceedances: |
1 |
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Data and Information Type: |
TOXICITY TESTING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed Don Westin Toxicity study (R3_Weston) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 1 of 2 samples exceed the criterion for Toxicity, Hyalella azteca Survival (%) 10 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: Don Weston Salinas Toxicity Data
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Final Data File used for assessment: Don Weston_Salinas CCMP Data
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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 |
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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)
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Spatial Representation: |
Data for this line of evidence for Alisal Creek (Salinas) was collected at 2 monitoring sites [ 309SA1 - Alisal Creek at Old Stage Road, 309SA2 - Alisal Creek at Alisal Road] |
Temporal Representation: |
Data was collected on a single day 9/23/2005. |
Environmental Conditions: |
Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: |
No QAPP was prepared specifically for this project. However the work was conducted consistent with an approved QAPP from a previous project. That QAPP is available upon request. |
QAPP Information Reference(s): |
e-mail clarifying QAPP information |
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DECISION ID |
15438 |
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Pollutant: |
Chlorophyll-a |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Agriculture |
Expected TMDL Completion Date: |
2013 |
Impairment from Pollutant or Pollution: |
Pollutant |
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Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under section 3.2 a single line of evidence is necessary to assess listing status.
Two lines of evidence are available in the administrative record to assess this pollutant. Five of the 6 samples exceed the Evaluation Guideline (North Carolina Administrative code, Title 15A) and the General Water Quality Objective set to protect aquatic life beneficial uses.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Five of the 6 samples exceed the Evaluation Guideline (North Carolina Administrative code, Title 15A) and the General Water Quality Objective set to protect aquatic life beneficial uses and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
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RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are being exceeded. |
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SWRCB Board Decision / Staff Recommendation: |
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USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 15438 |
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LOE ID: |
10044 |
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Pollutant: |
Chlorophyll-a |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
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Beneficial Use: |
Warm Freshwater Habitat |
Aquatic Life Use: |
Warm Freshwater Habitat |
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Number of Samples: |
6 |
Number of Exceedances: |
5 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 5 of 6 samples exceed the criterion for Chlorophyll a. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
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Final Data File used for assessment: CCAMP Water Quality Data_file1 |
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Final Data File used for assessment: CCAMP Water Quality Data_file2 |
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Final Data File used for assessment: CCAMP Water Quality Data_file3 |
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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 |
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North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
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Water quality standards table |
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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 |
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North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
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Spatial Representation: |
Data for this line of evidence for Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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: |
10043 |
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Pollutant: |
Chlorophyll-a |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
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Beneficial Use: |
Cold Freshwater Habitat |
Aquatic Life Use: |
Cold Freshwater Habitat |
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Number of Samples: |
6 |
Number of Exceedances: |
5 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 5 of 6 samples exceed the criterion for Chlorophyll a. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
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Final Data File used for assessment: CCAMP Water Quality Data_file1 |
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Final Data File used for assessment: CCAMP Water Quality Data_file2 |
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Final Data File used for assessment: CCAMP Water Quality Data_file3 |
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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 |
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North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
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Water quality standards table |
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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 |
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North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
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Spatial Representation: |
Data for this line of evidence for Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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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DECISION ID |
10362 |
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Pollutant: |
Sodium |
Final Listing Decision: |
List on 303(d) list (TMDL required list) |
Last Listing Cycle's Final Listing Decision: |
New Decision |
Revision Status |
Revised |
Sources: |
Agriculture | Nonpoint Source | Urban Runoff/Storm Sewers |
Expected TMDL Completion Date: |
2018 |
Impairment from Pollutant or Pollution: |
Pollutant |
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Weight of Evidence: |
This pollutant is being considered for placement on the section 303(d) list under sections 2.1 and 3.2 of the Listing Policy.
One line of evidence is available in the administrative record to assess this pollutant. Based on section 3.2 the site exceeded numeric objectives for conventional pollutants. Using the binomial distribution, waters shall be placed on the section 303(d) list if the number of measured exceedances supports rejection of the null hypothesis as presented in Table 3.2.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.
This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Six of 6 samples exceeded the Agricultural Supply water quality objective and this meets or exceeds the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
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RWQCB Board Decision / Staff Recommendation: |
After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem. |
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SWRCB Board Decision / Staff Recommendation: |
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USEPA Decision: |
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Lines of Evidence (LOEs) for Decision ID 10362 |
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LOE ID: |
10059 |
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Pollutant: |
Sodium |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
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Beneficial Use: |
Agricultural Supply |
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Number of Samples: |
6 |
Number of Exceedances: |
6 |
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Data and Information Type: |
PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: |
Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Alisal Creek (Salinas) to determine beneficial use support and results are as follows: 6 of 6 samples exceed the criterion for Sodium. |
Data Reference: |
Final Data File used for assessment: CCAMP Salinas Toxicity data |
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Final Data File used for assessment: CCAMP Water Quality Data_file1 |
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Final Data File used for assessment: CCAMP Water Quality Data_file2 |
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Final Data File used for assessment: CCAMP Water Quality Data_file3 |
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Water Quality Objective/Criterion: |
Waters shall not contain concentrations of chemical constituents in amounts which adversely affect the agricultural beneficial use. Interpretation of adverse effect shall be as derived from the University of California Agricultural Extension Service guidelines provided in Table 3-3 (Central Coast Waterboard Basin Plan, Chapter III, Section II.A.2 Objectives for all Inland and Surface Waters, Enclosed Bays and Estuaries). In Table 3-3 of the Basin Plan (page III-8), water quality guidelines state that severe problems may occur when sodium exceeds 69 mg/L in irrigation supply water. |
Objective/Criterion Reference: |
Water Quality Control Plan Central Coast Region (R3) Basin Plan |
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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 Alisal Creek (Salinas) was collected at 1 monitoring site [ 309UAL-Salinas Reclamation Canal at Old Stage Road ] |
Temporal Representation: |
Data was collected over the time period 7/28/1999-2/10/2000. Salinas 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): |