Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90297 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1339 |
Number of Exceedances: |
15 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BW data for Will Rogers Beach to determine beneficial use support and results are as follows: 15 of 1339 samples exceed the criterion for Coliform, Total. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
California Ocean Plan (2009) single sample maximum states that total coliform density shall not exceed 10,000 per 100 mL |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Data for this line of evidence for Will Rogers Beach was collected at 4 monitoring sites [ 17200 Pacific Coast Hwy, Bel Air Bay Club, Temescal Canyon sd, Pulga storm drain] |
Temporal Representation: |
Data was collected over the time period 1/1/2005-8/24/2010. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
3617 |
|
Pollutant: |
Indicator Bacteria |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
Total |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
4609 |
Number of Exceedances: |
1264 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
The most conservative applicable water quality criterion for total coliform is 70 MPN/100mL for the Basin Plan SHELL 30-Day Median objective. In Will Rogers Beach, the criterion was exceeded in 1,061 of 1,910 samples, which is 55.6% of the sample events. Under the state's Listing Policy, a water body is considered to be impaired for total coliform if there are 317 or more exceedances out of the 1,910 samples. The most conservative applicable water quality criterion for enterococcus is 35 MPN/100mL for the Basin Plan REC-1 Marine 30-Day Minimum 5 samples objective. In Will Rogers Beach, the criterion was exceeded in 203 of 706 samples, which is 28.8% of the sample events. Under the state's Listing Policy, a water body is considered to be impaired for enterococcus if there are 118 or more exceedances out of the 706 samples. The most conservative applicable water quality criterion for fecal coliform is 200 MPN/100mL for the Basin Plan REC-1 Marine 30-Day Minimum 5 samples objective. In Will Rogers Beach, the criterion was exceeded in 0 of 1,993 samples, which is 0% of the sample events. Under the state's Listing Policy, a water body is eligible for delisting for fecal coliform if there are 330 or fewer exceedances out of the 1,993 samples (City of Los Angeles, Bureau of Sanitation, 2006). |
Data Reference: |
Placeholder reference 2006 303(d) |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
The most conservative applicable water quality criterion for total coliform is 70 MPN/100mL for the Basin Plan SHELL 30-Day Median objective. The most conservative applicable water quality criterion for enterococcus is 35 MPN/100mL for the Basin Plan REC-1 Marine 30-Day Minimum 5 samples objective. The most conservative applicable water quality criterion for fecal coliform is 200 MPN/100mL for the Basin Plan REC-1 Marine 30-Day Minimum 5 samples objective. |
Guideline Reference: |
Placeholder reference 2006 303(d) |
|
Spatial Representation: |
Will Rogers Beach. |
Temporal Representation: |
|
Environmental Conditions: |
|
QAPP Information: |
This was taken verbatim from the City of Los Angeles Bureau of Sanitation comment letter on the draft 303(d) List. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90299 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
269 |
Number of Exceedances: |
17 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Seventeen of the 269 geomeans exceeded the total coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for total coliform states that the fecal coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Temescal Canyon sd. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90300 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
463 |
Number of Exceedances: |
2 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Two of the 463 geomeans exceeded the total coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for total coliform states that the fecal coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Pulga storm drain. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90301 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
258 |
Number of Exceedances: |
8 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Eight of the 258 geomeans exceeded the total coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for total coliform states that the fecal coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Bel Air Bay Club. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90302 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
246 |
Number of Exceedances: |
3 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Three of the 246 geomeans exceeded the total coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for total coliform states that the fecal coliform density shall not exceed 1000 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from 17200 Pacific Coast Hwy. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90247 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
1206 |
Number of Exceedances: |
177 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BW data for Will Rogers Beach to determine beneficial use support and results are as follows: 177 of 1206 samples exceed the criterion for Enterococci. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
California Ocean Plan (SWRCB 2009) single sample maximum states that enterococcus density shall not exceed 104 per 100 mL. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Data for this line of evidence for Will Rogers Beach was collected at 4 monitoring sites [ 17200 Pacific Coast Hwy, Bel Air Bay Club, Temescal Canyon sd, Pulga storm drain] |
Temporal Representation: |
Data was collected over the time period 1/1/2005-8/24/2010. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90271 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
269 |
Number of Exceedances: |
119 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
one hundred nineteen of the 269 geomeans exceeded the entercoccus objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for entercoccus states that the fecal coliform density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Temescal Canyon sd. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90272 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
330 |
Number of Exceedances: |
84 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Eighty-four of the 330 geomeans exceeded the entercoccus objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for entercoccus states that the fecal coliform density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Pulga storm drain. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90273 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
258 |
Number of Exceedances: |
86 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Eighty-six of the 258 geomeans exceeded the objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for entercoccus states that the fecal coliform density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Bel Air Bay Club. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90274 |
|
Pollutant: |
Enterococcus |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
246 |
Number of Exceedances: |
27 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Twenty-seven of the 246 geomeans exceeded the objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for entercoccus states that the fecal coliform density shall not exceed 35 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from 17200 Pacific Coast Hwy. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90275 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
893 |
Number of Exceedances: |
35 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed BW data for Will Rogers Beach to determine beneficial use support and results are as follows: 35 of 893 samples exceed the criterion for Coliform, Fecal. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
California Ocean Plan (SWRCB 2009) single sample maximum states that fecal coliform density shall not exceed 400 per 100ml |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Data for this line of evidence for Will Rogers Beach was collected at 4 monitoring sites [ 17200 Pacific Coast Hwy, Bel Air Bay Club, Temescal Canyon sd, Pulga storm drain] |
Temporal Representation: |
Data was collected over the time period 1/1/2005-8/24/2010. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90276 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
171 |
Number of Exceedances: |
1 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
One of the 171 geomeans exceeded the fecal coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for fecal coliform states that the fecal coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Temescal Canyon sd. |
Temporal Representation: |
Samples were collected approximately once a week from 2007 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90277 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
324 |
Number of Exceedances: |
4 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Four of the 324 geomeans exceeded the fecal coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for fecal coliform states that the fecal coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Pulga storm drain. |
Temporal Representation: |
Samples were collected approximately once a week from 2005 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90278 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
168 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 168 geomeans exceeded the fecal coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for fecal coliform states that the fecal coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from Bel Air Bay Club. |
Temporal Representation: |
Samples were collected approximately once a week from 2007 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90279 |
|
Pollutant: |
Fecal Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Water Contact Recreation |
|
Number of Samples: |
162 |
Number of Exceedances: |
0 |
|
Data and Information Type: |
Not Specified |
Data Used to Assess Water Quality: |
Zero of the 162 geomeans exceeded the fecal coliform objective. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The geometric mean standard for fecal coliform states that the fecal coliform density shall not exceed 200 per 100 mL. Water Quality Control Plan for Ocean Waters 2009. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Samples were collected from 17200 Pacific Coast Hwy. |
Temporal Representation: |
Samples were collected approximately once a week from 2007 to 2010. |
Environmental Conditions: |
|
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
3616 |
|
Pollutant: |
Indicator Bacteria |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Not Specified |
Fraction: |
None |
|
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: |
NJK: This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. |
Data Reference: |
Placeholder reference 2006 303(d) |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
|
Objective/Criterion Reference: |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
|
Temporal Representation: |
|
Environmental Conditions: |
|
QAPP Information: |
QA Info Missing |
QAPP Information Reference(s): |
|
Line of Evidence (LOE) for Decision ID 32965, Indicator Bacteria
|
Region 4 |
Will Rogers Beach |
|
|
LOE ID: |
90298 |
|
Pollutant: |
Total Coliform |
LOE Subgroup: |
Pollutant-Water |
Matrix: |
Water |
Fraction: |
None |
|
Beneficial Use: |
Shellfish Harvesting |
|
Number of Samples: |
1339 |
Number of Exceedances: |
383 |
|
Data and Information Type: |
PATHOGEN MONITORING |
Data Used to Assess Water Quality: |
Water Board staff assessed bw data for Will Rogers Beach to determine beneficial use support and results are as follows: 383 of 1339 samples exceed the criterion for Coliform, Total. |
Data Reference: |
Data for Region 4 Beach Watch. |
|
SWAMP Data: |
Non-SWAMP |
|
Water Quality Objective/Criterion: |
The California Ocean Plan (2009) states the following: At all areas where shellfish may be harvested for human consumption, the following bacterial objectives shall be maintained throughout the water column: Ten percent of the samples collected during any 30-day period shall not exceed 230 MPN/100mL. |
Objective/Criterion Reference: |
California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009 |
|
Evaluation Guideline: |
|
Guideline Reference: |
|
Spatial Representation: |
Data for this line of evidence for Will Rogers Beach was collected at 4 monitoring sites [ 17200 Pacific Coast Hwy, Bel Air Bay Club, Temescal Canyon sd, Pulga storm drain] |
Temporal Representation: |
Data was collected over the time period 1/1/2005-8/24/2010. |
Environmental Conditions: |
Staff is not aware of any special conditions that might affect interpretation of the data. |
QAPP Information: |
The samples were collected for the Beach Watch program. |
QAPP Information Reference(s): |
|