Water Body Name: | Gabilan Creek |
Water Body ID: | CAR3091900019990304092345 |
Water Body Type: | River & Stream |
Lines of Evidence (LOEs) for Decision ID 5995 |
LOE ID: | 3948 |
Pollutant: | Fecal Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Not Recorded |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 0 |
Number of Exceedances: | 0 |
Data and Information Type: | Not Specified |
Data Used to Assess Water Quality: | Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. |
Data Reference: | Placeholder reference pre-2006 303(d) |
Water Quality Objective/Criterion: | Unspecified |
Objective/Criterion Reference: | Placeholder reference pre-2006 303(d) |
Evaluation Guideline: | Unspecified |
Guideline Reference: | Placeholder reference pre-2006 303(d) |
Spatial Representation: | Unspecified |
Temporal Representation: | Unspecified |
Environmental Conditions: | Unspecified |
QAPP Information: | Unspecified |
QAPP Information Reference(s): | |
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LOE ID: | 10850 |
Pollutant: | Fecal Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 12 |
Number of Exceedances: | 1 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 1 of 12 samples exceed the criterion for Coliform, Fecal. |
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: | The Water Quality Control Plan, Central Coast Basin objective for non-contact water recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: Fecal coliform concentration, based on a minimum of not less than five samples for any 30-day period, shall not exceed a log mean of 2000/100 ml, nor shall more than ten percent of samples collected during any 30-day period exceed 4000/100 ml. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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: | 10849 |
Pollutant: | Fecal Coliform |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 12 |
Number of Exceedances: | 10 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 10 of 12 samples exceed the criterion for Coliform, Fecal. |
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: | The Water Quality Control Plan, Central Coast Basin objective for water contact recreation uses (Section II.A.2. Objectives for All Inland Surface Waters, Enclosed Bays, and Estuaries, II.A.2.a) states the following: Fecal coliform concentration, based on a minimum of not less than five samples for any 30-day period, shall not exceed a log mean of 200 MPN/100 ml, nor shall more than ten percent of total samples during any 30-day period exceed 400 MPN/100 ml. |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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): |
Lines of Evidence (LOEs) for Decision ID 5504 |
LOE ID: | 17744 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 206 |
Number of Exceedances: | 2 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 2 of 206 samples exceed the criterion for Nitrate as N. |
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 municipal and domestic supply uses of inland surface waters (Section II.A.2) states the following: waters shall not contain concentrations of chemical constituents in excess of the limits specified in California Code of Regulations, Title 22, Article 4, Chapter 15, Section 64435, Tables 2 and 3 as listed in Table 3-2. The maximum contaminant level listed in Table 3-2 (inorganic and fluoride concentrations not to be exceeded in domestic or municipal supply) for nitrate is 10.0 mg/L (NO3 as N). |
Objective/Criterion Reference: | Title 22, Division 4, Ch. 15, Article 4, Section 64431, Table 64431-A |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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: | 14355 |
Pollutant: | Nitrate/Nitrite (Nitrite + Nitrate as N) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 9 |
Number of Exceedances: | 7 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 7 of 9 samples exceed the criterion for Nitrate/Nitrite as N. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | OEHHA public Health Goals for Nitrate and Nitrogen in Drinking Water (December 1997). Page 6. |
Objective/Criterion Reference: | Public health goals for nitrate and nitrite in drinking water |
Evaluation Guideline: | OEHHA Public Health Goal states that sum of the concentration of nitrate + nitrite shall not exceed 10 mg/L (NO3+NO2 expressed as N). |
Guideline Reference: | Public health goals for nitrate and nitrite in drinking water |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 3/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
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LOE ID: | 14286 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural 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 CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Nitrate as N. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 nitrate exceeds 30 mg/L NO3 as N 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-10/25/2005. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
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LOE ID: | 14287 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 6 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 4 of 6 samples exceed the criterion for Nitrate as N. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin Objective for municipal and domestic supply uses of inland surface waters (Section II.A.2) states the following: waters shall not contain concentrations of chemical constituents in excess of the limits specified in California Code of Regulations, Title 22, Article 4, Chapter 15, Section 64435, Tables 2 and 3 as listed in Table 3-2. The maximum contaminant level listed in Table 3-2 (inorganic and fluoride concentrations not to be exceeded in domestic or municipal supply) for nitrate is 10.0 mg/L (NO3 as N). |
Objective/Criterion Reference: | Title 22, Division 4, Ch. 15, Article 4, Section 64431, Table 64431-A |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-10/25/2005. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
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LOE ID: | 28140 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 206 |
Number of Exceedances: | 36 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Data for this assessment unit was collected by one monitoring project: Monterey Area Research Consortium (R3_MARC) |
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 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 |
Evaluation Guideline: | Technical approach to develop nutrient numeric endpoints for California, Tetra Tech, June 2006. The Central Coast Region numeric target for maximum nitrate concentration is based on the Tetra Tech NNE (Nutrient Numeric Endpoint) Model and CCAMP data for 193 sites, monitored monthly for at least 1 year between January 1998 and December 2006. The model numeric target for aquatic life habitats in the Central Coast Region is 1.0 mg/L Nitrate as N. |
Guideline Reference: | Technical Approach to Develop Nutrient Numeric Endpoints for California |
Technical Paper - Interpreting Narrative Objectives for Biostimulatory Substances Using the Technical Approach for Developing California Nutrient Numeric Endpoints. Central Coast Region | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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: | 28141 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Data for this assessment unit was collected by one monitoring project: Coastal Watershed Council (Snapshot day monitoring) (R3_Snap) |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 |
Evaluation Guideline: | Technical approach to develop nutrient numeric endpoints for California, Tetra Tech, June 2006. The Central Coast Region numeric target for maximum nitrate concentration is based on the Tetra Tech NNE (Nutrient Numeric Endpoint) Model and CCAMP data for 193 sites, monitored monthly for at least 1 year between January 1998 and December 2006. The model numeric target for aquatic life habitats in the Central Coast Region is 1.0 mg/L Nitrate as N. |
Guideline Reference: | Technical Approach to Develop Nutrient Numeric Endpoints for California |
Technical Paper - Interpreting Narrative Objectives for Biostimulatory Substances Using the Technical Approach for Developing California Nutrient Numeric Endpoints. Central Coast Region | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 13713 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 111 |
Number of Exceedances: | 12 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 12 of 111 samples exceed the criterion for Nitrate as N. |
Data Reference: | Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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 nitrate exceeds 30 mg/L NO3 as N 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 Gabilan Creek was collected at 6 monitoring sites [ Herbert Rd, Crazy Horse Rd, Old Stage Rd, Natividad Rd, Veterans Park Bridge, Boronda Rd] |
Temporal Representation: | Data was collected over the time period 10/11/2000-5/23/2002. |
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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LOE ID: | 13714 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 111 |
Number of Exceedances: | 27 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 27 of 111 samples exceed the criterion for Nitrate as N. |
Data Reference: | Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin Objective for municipal and domestic supply uses of inland surface waters (Section II.A.2) states the following: waters shall not contain concentrations of chemical constituents in excess of the limits specified in California Code of Regulations, Title 22, Article 4, Chapter 15, Section 64435, Tables 2 and 3 as listed in Table 3-2. The maximum contaminant level listed in Table 3-2 (inorganic and fluoride concentrations not to be exceeded in domestic or municipal supply) for nitrate is 10.0 mg/L (NO3 as N). |
Objective/Criterion Reference: | Title 22, Division 4, Ch. 15, Article 4, Section 64431, Table 64431-A |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 6 monitoring sites [ Herbert Rd, Crazy Horse Rd, Old Stage Rd, Natividad Rd, Veterans Park Bridge, Boronda Rd] |
Temporal Representation: | Data was collected over the time period 10/11/2000-5/23/2002. |
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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LOE ID: | 17743 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 206 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 206 samples exceed the criterion for Nitrate as N. |
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 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 nitrate exceeds 30 mg/L NO3 as N 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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: | 18290 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 4 of 4 samples exceed the criterion for Nitrate as N. |
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 municipal and domestic supply uses of inland surface waters (Section II.A.2) states the following: waters shall not contain concentrations of chemical constituents in excess of the limits specified in California Code of Regulations, Title 22, Article 4, Chapter 15, Section 64435, Tables 2 and 3 as listed in Table 3-2. The maximum contaminant level listed in Table 3-2 (inorganic and fluoride concentrations not to be exceeded in domestic or municipal supply) for nitrate is 10.0 mg/L (NO3 as N). |
Objective/Criterion Reference: | Title 22, Division 4, Ch. 15, Article 4, Section 64431, Table 64431-A |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 1883 |
Pollutant: | Nitrate as Nitrate (NO3) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 6 |
Number of Exceedances: | 2 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | There were 6 total samples taken by CCAMP staff. Out of the 6 samples, 2 exceeded the water quality objective for nitrate (as NO3) for municipal and domestic supply (CCAMP, 2004; SWAMP, 2004). |
Data Reference: | Placeholder reference 2006 303(d) |
Water Quality Objective/Criterion: | Waters shall not contain concentrations of chemical constituents in excess of the limits specified in California Code of Regulations, Title 22, Article 4, Chapter 15, Section 64435, Tables 2 and 3 as listed in Table 3-2 (Region 3 Basin Plan, p III-3; In Table 3-2, the MCL for Nitrate (as NO3) in Domestic or Municipal Supply is 45 mg/L.). |
Objective/Criterion Reference: | Placeholder reference 2006 303(d) |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Samples were collected from two sites. |
Temporal Representation: | Samples were collected from July 1999 to February 2000. |
Environmental Conditions: | The water body is located in the Salinas hydrologic unit, Gabilan Range hydrologic subarea. The sites are Gabilan Creek at Independence Road and East Boranda Road (309GAB), "City of Salinas Urban GC1-M." |
QAPP Information: | CCAMP, SWAMP QAPP. |
QAPP Information Reference(s): | |
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LOE ID: | 18289 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Nitrate as N. |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 nitrate exceeds 30 mg/L NO3 as N 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 9547 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 12 |
Number of Exceedances: | 5 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 5 of 12 samples exceed the criterion for Nitrate as N. |
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: | The Water Quality Control Plan, Central Coast Basin Objective for municipal and domestic supply uses of inland surface waters (Section II.A.2) states the following: waters shall not contain concentrations of chemical constituents in excess of the limits specified in California Code of Regulations, Title 22, Article 4, Chapter 15, Section 64435, Tables 2 and 3 as listed in Table 3-2. The maximum contaminant level listed in Table 3-2 (inorganic and fluoride concentrations not to be exceeded in domestic or municipal supply) for nitrate is 10.0 mg/L (NO3 as N). |
Objective/Criterion Reference: | Title 22, Division 4, Ch. 15, Article 4, Section 64431, Table 64431-A |
Water Quality Control Plan Central Coast Region (R3) Basin Plan | |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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: | 9546 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 12 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 12 samples exceed the criterion for Nitrate as N. |
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 nitrate exceeds 30 mg/L NO3 as N 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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: | 28113 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 8 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Data for this assessment unit was collected by one monitoring project: CCAMP Salinas (Salinas) |
Data Reference: | Final Data File used for assessment: CCAMP Water Quality Data_file1 |
Final Data File used for assessment: CCAMP Water Quality Data_file2 | |
Final Data File used for assessment: CCAMP Water Quality Data_file3 | |
Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses (general objective for biostimulatory substances, Water Quality Control Plan, Central Coast Basin, Chapter III, Section II). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Technical approach to develop nutrient numeric endpoints for California, Tetra Tech, June 2006. The Central Coast Region numeric target for maximum nitrate concentration is based on the Tetra Tech NNE (Nutrient Numeric Endpoint) Model and CCAMP data for 193 sites, monitored monthly for at least 1 year between January 1998 and December 2006. The model numeric target for aquatic life habitats in the Central Coast Region is 1.0 mg/L Nitrate as N. |
Guideline Reference: | Technical Approach to Develop Nutrient Numeric Endpoints for California |
Technical Paper - Interpreting Narrative Objectives for Biostimulatory Substances Using the Technical Approach for Developing California Nutrient Numeric Endpoints. Central Coast Region | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. Salinas watershed is one of five annual rotation areas that are monitored for conventional pollutants by CCAMP staff monthly for one year, in both 1999 and in 2006. 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: | 28102 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 6 |
Number of Exceedances: | 5 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Data for this assessment unit was collected by one monitoring project: CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth). Five of the 6 samples exceed the evaluation guideline for nitrate. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 |
Evaluation Guideline: | Technical approach to develop nutrient numeric endpoints for California, Tetra Tech, June 2006. The Central Coast Region numeric target for maximum nitrate concentration is based on the Tetra Tech NNE (Nutrient Numeric Endpoint) Model and CCAMP data for 193 sites, monitored monthly for at least 1 year between January 1998 and December 2006. The model numeric target for aquatic life habitats in the Central Coast Region is 1.0 mg/L Nitrate as N. |
Guideline Reference: | Technical Approach to Develop Nutrient Numeric Endpoints for California |
Technical Paper - Interpreting Narrative Objectives for Biostimulatory Substances Using the Technical Approach for Developing California Nutrient Numeric Endpoints. Central Coast Region | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-10/25/2005. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 28155 |
Pollutant: | Nitrate |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Number of Samples: | 111 |
Number of Exceedances: | 80 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Data for this assessment unit was collected by one monitoring project: Central Coast Watershed Studies (R3_CCOWS) |
Data Reference: | Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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 |
Evaluation Guideline: | Technical approach to develop nutrient numeric endpoints for California, Tetra Tech, June 2006. The Central Coast Region numeric target for maximum nitrate concentration is based on the Tetra Tech NNE (Nutrient Numeric Endpoint) Model and CCAMP data for 193 sites, monitored monthly for at least 1 year between January 1998 and December 2006. The model numeric target for aquatic life habitats in the Central Coast Region is 1.0 mg/L Nitrate as N. |
Guideline Reference: | Technical Approach to Develop Nutrient Numeric Endpoints for California |
Technical Paper - Interpreting Narrative Objectives for Biostimulatory Substances Using the Technical Approach for Developing California Nutrient Numeric Endpoints. Central Coast Region | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 6 monitoring sites [ Herbert Rd, Crazy Horse Rd, Old Stage Rd, Natividad Rd, Veterans Park Bridge, and Boronda Rd] |
Temporal Representation: | Data was collected over the time period 10/11/2000-5/23/2002. |
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): |
Lines of Evidence (LOEs) for Decision ID 13751 |
LOE ID: | 9504 |
Pollutant: | Boron |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 9 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 9 samples exceed the criterion for Boron, 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: | Waters shall not contain concentrations of chemical constituents in amounts which adversely affect the agricultural beneficial use. In addition, waters used for irrigation and livestock watering shall not exceed concentrations for those chemicals listed in Table 3.4 (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland and Surface Waters, Enclosed Bays and Estuaries). Table 3-4 (page III-9) lists the maximum concentration for boron for irrigation supply is 0.75 mg/L. |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 5/10/1999-12/12/2006. 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): |
Lines of Evidence (LOEs) for Decision ID 13753 |
LOE ID: | 14605 |
Pollutant: | Chlorophyll-a |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Chlorophyll a. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | Waters shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses (general objective for biostimulatory substances, Water Quality Control Plan, Central Coast Basin, Chapter III, Section II). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | |
Water quality standards table | |
Evaluation Guideline: | North Carolina Administrative code (NCAC), Title 15A - Environmental and Natural Resources, Subchapter 2B-Surface water and wetland standards, Rule 0211-Fresh surface water quality standards for class C waters (Class C is defined as freshwaters protected for secondary recreation, fishing, aquatic life including propagation and survival, and wildlife). Section 3(a) of Rule 0211 applies to all fresh surface waters and states that chlorophyll a is not to exceed 40 ug/L. |
Guideline Reference: | North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 9545 |
Pollutant: | Chlorophyll-a |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 2 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 2 of 12 samples exceed the criterion for Chlorophyll a. |
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 biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses (general objective for biostimulatory substances, Water Quality Control Plan, Central Coast Basin, Chapter III, Section II). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | |
Water quality standards table | |
Evaluation Guideline: | North Carolina Administrative code (NCAC), Title 15A - Environmental and Natural Resources, Subchapter 2B-Surface water and wetland standards, Rule 0211-Fresh surface water quality standards for class C waters (Class C is defined as freshwaters protected for secondary recreation, fishing, aquatic life including propagation and survival, and wildlife). Section 3(a) of Rule 0211 applies to all fresh surface waters and states that chlorophyll a is not to exceed 40 ug/L. |
Guideline Reference: | North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards |
North Carolina standards, criteria, or toxic concentrations. Adopted per title 15A North Carolina Administrative Code subchapter 2B - Surface water and wetland standards | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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): |
Lines of Evidence (LOEs) for Decision ID 13754 |
LOE ID: | 19260 |
Pollutant: | Dieldrin |
LOE Subgroup: | Pollutant-Sediment |
Matrix: | Sediment |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 3 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Don Westin Toxicity study (R3_Weston) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 3 samples exceed the criterion for Dieldrin. |
Data Reference: | Final Data File used for assessment: Don Weston Salinas Toxicity Data |
Final Data File used for assessment: Don Weston_Salinas CCMP Data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, General Objective 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: | In fresh water sediments the probable effects level (predictive of sediment toxicity) for dieldrin is 61.8 ug/Kg dry weight (MacDonald et al. 2000). |
Guideline Reference: | Development and evaluation of consensus-based sediment effect concentrations for polychlorinated biphenyls. Environmental Toxicology and Chemistry. 19(5): 1403-1413 |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 3 monitoring sites [ 309SG3 - Gabilan Creek at Independence and Lexington Dr., 309SG2 - Gabilan Creek at Boranda, 309SG1 - Gabilan Creek at Old Stage 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 |
Lines of Evidence (LOEs) for Decision ID 13758 |
LOE ID: | 13831 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 168 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 168 samples exceed the criterion for Conductivity(Us). |
Data Reference: | Final Data File used for assessment: CCoWS (Central Coast Watershed Studies) Water Quality Data |
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 conductivity exceeds 3.0 mS/cm 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 Gabilan Creek was collected at 6 monitoring sites [ Old Stage Rd, Crazy Horse Rd, Veterans Park Bridge, Herbert Rd, Natividad Rd, Boronda Rd] |
Temporal Representation: | Data was collected over the time period 4/13/2000-2/19/2001. |
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): | |
| |
LOE ID: | 17527 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 201 |
Number of Exceedances: | 2 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 2 of 201 samples exceed the criterion for Conductivity(Us). |
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 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 conductivity exceeds 3.0 mS/cm 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 Gabilan Creek was collected at 4 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-HEB - Gabilan Creek at Hebert Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-129] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 10851 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural 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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Conductivity(Us). |
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 conductivity exceeds 3.0 mS/cm 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 17664 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 samples exceed the criterion for Conductivity(Us). |
Data Reference: | Final Data File used for assessment: Monterey Bay National Marine Sanctuary Volunteer Monitoring Network Data. 2003-2006 |
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 conductivity exceeds 3.0 mS/cm 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 17905 |
Pollutant: | Electrical Conductivity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 6 |
Number of Exceedances: | 6 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 6 of 6 samples exceed the criterion for Conductivity(ms). |
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 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 conductivity exceeds 3.0 mS/cm 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 Gabilan Creek was collected at 2 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd.] |
Temporal Representation: | Data was collected over the time period 8/24/2004-9/21/2004. |
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 13759 |
LOE ID: | 19525 |
Pollutant: | Endrin |
LOE Subgroup: | Pollutant-Sediment |
Matrix: | Sediment |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 3 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed Don Westin Toxicity study (R3_Weston) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 3 samples exceed the criterion for Endrin. |
Data Reference: | Final Data File used for assessment: Don Weston Salinas Toxicity Data |
Final Data File used for assessment: Don Weston_Salinas CCMP Data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. (Water Quality Control Plan, Central Coast Basin, General Objective 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: | In fresh water sediments the probable effects level (predictive of sediment toxicity) for endrin is 207 ug/Kg dry weight (MacDonald et al. 2000). |
Guideline Reference: | Development and evaluation of consensus-based sediment effect concentrations for polychlorinated biphenyls. Environmental Toxicology and Chemistry. 19(5): 1403-1413 |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 3 monitoring sites [ 309SG3 - Gabilan Creek at Independence and Lexington Dr., 309SG2 - Gabilan Creek at Boranda, 309SG1 - Gabilan Creek at Old Stage 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 |
Lines of Evidence (LOEs) for Decision ID 13762 |
LOE ID: | 18478 |
Pollutant: | Escherichia coli (E. Coli) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 4 |
Number of Exceedances: | 0 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 18479 |
Pollutant: | Escherichia coli (E. Coli) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 4 |
Number of Exceedances: | 0 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 10866 |
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: | 0 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for Escherichia coli. |
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: | 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 10852 |
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: | 2 |
Data and Information Type: | PATHOGEN MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek 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: 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 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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): |
Lines of Evidence (LOEs) for Decision ID 13755 |
LOE ID: | 17877 |
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: | 196 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 1 of 196 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 14619 |
Pollutant: | Dissolved oxygen saturation |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 9 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 9 of 15 samples exceed the criterion for Oxygen, Saturation. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 12964 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 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 Gabilan Creek to determine beneficial use support and results are as follows: 1 of 12 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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: | 12981 |
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: | 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 Gabilan Creek to determine beneficial use support and results are as follows: 0 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected on a single day 7/7/1999. 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: | 12980 |
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 Gabilan Creek 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected on a single day 7/7/1999. 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: | 12979 |
Pollutant: | Dissolved oxygen saturation |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 12 |
Number of Exceedances: | 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 Gabilan Creek to determine beneficial use support and results are as follows: 3 of 12 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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: | 14606 |
Pollutant: | Oxygen, Dissolved |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | Dissolved |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Oxygen, Dissolved. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 18101 |
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: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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): |
Lines of Evidence (LOEs) for Decision ID 13750 |
LOE ID: | 17834 |
Pollutant: | Ammonia as Nitrogen |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 198 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 198 samples exceed the criterion for Ammonia As N, Total. |
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: | 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 9544 |
Pollutant: | Ammonia as Nitrogen |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 12 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 12 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/1/1999-12/12/2006. 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: | 14288 |
Pollutant: | Ammonia as Nitrogen |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Ammonia As N, Total. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 13764 |
LOE ID: | 12982 |
Pollutant: | Salinity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
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 CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 7 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/10/2000-12/12/2006. 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: | 14638 |
Pollutant: | Salinity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Salinity. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 13748 |
LOE ID: | 9505 |
Pollutant: | Ammonia (Unionized) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 5 samples exceed the criterion for Ammonia as N, Unionized. |
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 that the discharge of wastes shall not cause concentrations of unionized ammonia (NH3) to exceed 0.025 mg/l (as N) in receiving waters (page III-4) . |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-5/23/2006. 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: | 14604 |
Pollutant: | Ammonia (Unionized) |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 13 |
Number of Exceedances: | 3 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 3 of 13 samples exceed the criterion for Ammonia as N, Unionized. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | Water Quality Control Plan, Central Coast Basin General Objective, Chapter III, Section II.A.2 (General Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries) states that the discharge of wastes shall not cause concentrations of unionized ammonia (NH3) to exceed 0.025 mg/l (as N) in receiving waters (page III-4) . |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | |
Guideline Reference: | |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 3/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 15907 |
LOE ID: | 24067 |
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: | 2 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPnorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 2 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: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction of survival of test organism relative to the control (alpha < 0.05) and test organism survival is 20% less than the control survival. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 4/13/2005-5/25/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 24197 |
Pollutant: | Invertebrate Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Sediment |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 3 |
Number of Exceedances: | 2 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 2 of 3 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 |
Final Data File used for assessment: Don Weston_Salinas CCMP Data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction of survival of test organism relative to the control (alpha < 0.05) and test organism survival is 20% less than the control survival. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 3 monitoring sites [ 309SG1 - Gabilan Creek at Old Stage Road, 309SG2 - Gabilan Creek at Boranda, 309SG3 - Gabilan Creek at Independence and Lexington Dr.] |
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 |
Lines of Evidence (LOEs) for Decision ID 13765 |
LOE ID: | 14639 |
Pollutant: | Turbidity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 16 |
Number of Exceedances: | 16 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 16 of 16 samples exceed the criterion for Turbidity(NTU). |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 12983 |
Pollutant: | Turbidity |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 6 |
Number of Exceedances: | 5 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCAMP Salinas (Salinas) data for Gabilan Creek to determine beneficial use support and results are as follows: 5 of 6 samples exceed the criterion for Turbidity(NTU). |
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 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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): |
Lines of Evidence (LOEs) for Decision ID 15908 |
LOE ID: | 24209 |
Pollutant: | Plant Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 3 |
Number of Exceedances: | 0 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPnorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 3 samples exceed the criterion for Toxicity, Selenastrum capricornutum Growth (Cell Density) 4 days. Toxicity is defined by SWAMP (2004) as follows: Significant toxicity in the survival endpoint when compared to the negative control based on a statistical test with alpha of less than 5%, and less than the evaluation threshold (both criteria are met). |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction in cell count of test organism relative to the control (alpha < 0.05) and cell count <80% of control. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 3/22/2005-2/22/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 24065 |
Pollutant: | Invertebrate Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 4 |
Number of Exceedances: | 4 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPnorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 4 of 4 samples exceed the criterion for Toxicity, Ceriodaphnia dubia Survival (%) 7 days. Toxicity is defined by SWAMP (2004) as follows: Significant toxicity in the survival endpoint when compared to the negative control based on a statistical test with alpha of less than 5%, and less than the evaluation threshold (both criteria are met). |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction of survival of test organism relative to the control (alpha < 0.05) and test organism survival is 20% less than the control survival. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road]. |
Temporal Representation: | Data was collected over the time period 3/22/2005-9/27/2005. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 24199 |
Pollutant: | Vertebrate Toxicity |
LOE Subgroup: | Toxicity |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 2 |
Number of Exceedances: | 0 |
Data and Information Type: | TOXICITY TESTING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPnorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 2 samples exceed the criterion for Toxicity, Pimephales promelas Survival (%) 7 days. Toxicity is defined by SWAMP (2004) as follows: Significant toxicity in the survival endpoint when compared to the negative control based on a statistical test with alpha of less than 5%, and less than the evaluation threshold (both criteria are met). |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | All waters shall be maintained free of toxic substances in concentrations which are toxic to, or which produce detrimental physiological responses in, human, plant, animal, or aquatic life. Compliance with this objective will be determined by use of indicator organisms, analyses of species diversity, population density, growth anomalies, toxicity bioassays of appropriate duration, or other appropriate methods as specified by the Regional Board (Water Quality Control Plan, Central Coast Basin, Chapter III, Section II.A.2 Objectives for all Inland Surface Waters, Enclosed Bays and Estuaries). |
Objective/Criterion Reference: | Water Quality Control Plan Central Coast Region (R3) Basin Plan |
Evaluation Guideline: | Significant reduction of survival of test organism relative to the control (alpha < 0.05) and test organism survival is 20% less than the control survival. |
Guideline Reference: | Quality Assurance Management Plan for the State of California's Surface Water Ambient Monitoring Program. Sacramento, CA. State Water Resources Control Board. SWAMP. December 2002 (1st version) |
Spatial Representation: | Data for this line of evidence for Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 3/22/2005-2/22/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): |
Lines of Evidence (LOEs) for Decision ID 13767 |
LOE ID: | 19178 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 19162 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 17411 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 198 |
Number of Exceedances: | 88 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 88 of 198 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, Section II.A.2. Municipal and Domestic Supply Objectives, Section II.A.2.a states the following: The pH value shall neither be depressed below 6.5 or 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 17412 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 198 |
Number of Exceedances: | 88 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 88 of 198 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 17413 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 198 |
Number of Exceedances: | 88 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 88 of 198 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 14637 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 10868 |
Pollutant: | pH |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for pH. |
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: | The Water Quality Control Plan, Central Coast Basin, Section II.A.2. Municipal and Domestic Supply Objectives, Section II.A.2.a states the following: The pH value shall neither be depressed below 6.5 or 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 17410 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 198 |
Number of Exceedances: | 56 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 56 of 198 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: | 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 pH is greater than 8.4 or less than 6.5 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 17414 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 198 |
Number of Exceedances: | 34 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 34 of 198 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 Gabilan Creek was collected at 3 monitoring sites [ GA-CHR - Gabilan Creek at Crazy Horse Rd., GA-OSC - Gabilan Creek at Old Stage Coach Rd., GA-HEB - Gabilan Creek at Hebert Rd.] |
Temporal Representation: | Data was collected over the time period 10/4/2000-9/21/2004. |
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): | |
| |
LOE ID: | 19179 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 10886 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Warm Freshwater Habitat |
Aquatic Life Use: | Warm Freshwater Habitat |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for pH. |
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, 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 19161 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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, Section II.A.2. Municipal and Domestic Supply Objectives, Section II.A.2.a states the following: The pH value shall neither be depressed below 6.5 or 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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: | 14620 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 pH is greater than 8.4 or less than 6.5 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 14621 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Municipal & Domestic Supply |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
Water Quality Objective/Criterion: | The Water Quality Control Plan, Central Coast Basin, Section II.A.2. Municipal and Domestic Supply Objectives, Section II.A.2.a states the following: The pH value shall neither be depressed below 6.5 or 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 14622 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 10867 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural 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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for pH. |
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 pH is greater than 8.4 or less than 6.5 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 10870 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for pH. |
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: | 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 14636 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Non-Contact Recreation |
Number of Samples: | 15 |
Number of Exceedances: | 0 |
Data and Information Type: | PHYSICAL/CHEMICAL MONITORING |
Data Used to Assess Water Quality: | Central Coast Regional Board Staff assessed CCWQP Northern Area Ag-Waiver Monitoring (R3_CMPNorth) data for Gabilan Creek to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for pH. |
Data Reference: | Final Data File used for assessment: Central Coast Water Quality Preservation Inc toxicity data |
Final Data File used for assessment: Central Coast Water Quality Preservation Inc water quality data | |
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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 2/22/2005-12/12/2006. Cooperative Monitoring Program (CMP) staff conduct monitoring for conventional pollutants at all Ag Waiver monitoring sites monthly. CMP staff also conduct water toxicity monitoring quarterly and sediment toxicity monitoring annually (in spring). |
Environmental Conditions: | Staff is not aware of any special conditions that might effect interpretation of the data. |
QAPP Information: | All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the Cooperative Monitoring Program QAPP, (Clark and Ogle 2006). QA data are included in submission. All data are flagged as appropriate. |
QAPP Information Reference(s): | |
| |
LOE ID: | 10869 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Water Contact Recreation |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 6 samples exceed the criterion for pH. |
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: | 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 Gabilan Creek was collected at 1 monitoring site [ 309GAB-Gabilan Creek at Independence Road and East Boranda Road] |
Temporal Representation: | Data was collected over the time period 1/24/2006-12/12/2006. 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: | 19160 |
Pollutant: | pH |
LOE Subgroup: | Pollutant-Water |
Matrix: | Water |
Fraction: | None |
Beneficial Use: | Agricultural Supply |
Number of Samples: | 4 |
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 Gabilan Creek to determine beneficial use support and results are as follows: 0 of 4 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: | 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 pH is greater than 8.4 or less than 6.5 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 Gabilan Creek was collected at 1 monitoring site [ 309-GABIL-31 - Gabilan Creek at Independence] |
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): |