Draft California 2020 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 4 - Los Angeles Region

Water Body Name: Ormond Beach
Water Body ID: CAX4031100020020926125623
Water Body Type: Coastal & Bay Shoreline
 
DECISION ID
75960
Region 4     
Ormond Beach
 
Pollutant: Indicator Bacteria
Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not Delist from 303(d) list (TMDL required list)(2016)
Revision Status Revised
Sources: A Source Unknown
Expected TMDL Completion Date: 2019
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal from the CWA section 303(d) List under section 4.3 of the Listing Policy. Under this section a single line of evidence is necessary to assess listing status.

32 lines of evidence are available in the administrative record to assess this pollutant. Use of data assessed against the shellfish standard is inappropriate at this time and will not be considered in the final decision. Only 9 lines of evidence will be considered, because those lines of evidence already include all the data used from the other lines of evidence.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for removing this water segment-pollutant combination from the CWA section 303(d) List. This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. 86 of 2015, 1 of 1626, and 24 of 2167 samples exceeded the OBJECTIVE and this does not exceed the allowable frequency listed in Table 4.2 of the Listing Policy.
4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are met.

State Board has reviewed this Decision, and has determined that the Listing still applies. The total coliform Shellfish objective is under review, but still applies under the Ocean Plan.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be removed from the section 303(d) list because applicable water quality standards for the pollutant are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the following changes to the decision:
The water body-pollutant combination should not be removed from the section 303(d) list because applicable water quality standards for the pollutant are being exceeded.
 
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86877
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 84
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 84 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Beach-Arnold Rd.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86713
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 320
Number of Exceedances: 19
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed BeachWatch data for Ormond Beach to determine beneficial use support and results are as follows: 19 of 320 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 Ormond Beach was collected at 3 monitoring sites [ Ormond Bch-Indust. Drain, Ormond Beach- J St., Ormond Beach-Arnold Rd.]
Temporal Representation: Data was collected over the time period 4/3/2007-8/24/2010.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86862
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 102
Number of Exceedances: 11
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Eleven of the 102 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Beach- J St.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86861
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 320
Number of Exceedances: 9
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed BeachWatch data for Ormond Beach to determine beneficial use support and results are as follows: 9 of 320 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 Ormond Beach was collected at 3 monitoring sites [ Ormond Bch-Indust. Drain, Ormond Beach- J St., Ormond Beach-Arnold Rd.]
Temporal Representation: Data was collected over the time period 4/3/2007-8/24/2010.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133452
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 767
Number of Exceedances: 45
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 45 of the 767 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999 and from 2004 to 2008. Samples were collected year-round from 2000 to 2003 and 2009 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the six-week rolling geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 30 enterococci bacteria per 100 milliliters, generally not less than five samples calculated weekly.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at J Street (42000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133454
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 624
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 0 of the 624 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999, from 2004 to 2008, and from 2013 to 2014. Samples were collected year-round from 2000 to 2003, 2009 to 2012, and from 2015 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the six-week rolling geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 30 enterococci bacteria per 100 milliliters, generally not less than five samples calculated weekly.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at Arnold Rd. (44000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133453
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 624
Number of Exceedances: 41
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 41 of the 624 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999, from 2004 to 2008, and from 2013 to 2014. Samples were collected year-round from 2000 to 2003, 2009 to 2012, and from 2015 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the six-week rolling geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 30 enterococci bacteria per 100 milliliters, generally not less than five samples calculated weekly.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at Indust. Drain (43000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86879
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 320
Number of Exceedances: 3
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed BeachWatch data for Ormond Beach to determine beneficial use support and results are as follows: 3 of 320 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 Ormond Beach was collected at 3 monitoring sites [ Ormond Bch-Indust. Drain, Ormond Beach- J St., Ormond Beach-Arnold Rd.]
Temporal Representation: Data was collected over the time period 4/3/2007-8/24/2010.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86880
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 102
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 102 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Beach- J St.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86882
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 92
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 92 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Bch-Indust. Drain.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86881
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 84
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 84 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Beach-Arnold Rd.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133450
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 479
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 0 of the 479 single sample exceeded the objective. The samples were collected during dry weather from April through October in 1999, from 2004 to 2008, and from 2013 to 2014. Samples were collected year-round from 2000 to 2003, 2009 to 2012, and from 2015 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the 30-day geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 200 fecal coliform bacteria per 100 milliliters, calculated based on the five most recent samples.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at Indust. Drain (43000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133448
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 437
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 0 of the 437 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999, from 2004 to 2008, and from 2013 to 2014. Samples were collected year-round from 2000 to 2003, 2009 to 2012, and from 2015 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the 30-day geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 200 fecal coliform bacteria per 100 milliliters, calculated based on the five most recent samples.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at Arnold Rd. (44000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133451
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 710
Number of Exceedances: 1
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 1 of the 710 geometric means exceeded the objective. The samples were collected during dry weather from April through October in 1999 and from 2004 to 2008. Samples were collected year-round from 2000 to 2003 and 2009 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on the 30-day geometric mean standard, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 200 fecal coliform bacteria per 100 milliliters, calculated based on the five most recent samples.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at J Street (42000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133376
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 798
Number of Exceedances: 12
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 12 of the 798 single sample exceeded the objective. The samples were collected during dry weather from April through October in 1999 and from 2004 to 2008. Samples were collected year-round from 2000 to 2003 and 2009 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 400 fecal coliform bacteria per 100 milliliters.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at J Street (42000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133445
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 691
Number of Exceedances: 8
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 8 of the 691 single sample exceeded the objective. The samples were collected during dry weather from April through October in 1999, from 2004 to 2008, and from 2013 to 2014. Samples were collected year-round from 2000 to 2003, 2009 to 2012, and from 2015 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 400 fecal coliform bacteria per 100 milliliters.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at Indust. Drain (43000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 133446
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 678
Number of Exceedances: 4
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: 4 of the 678 single sample exceeded the objective. The samples were collected during dry weather from April through October in 1999, from 2004 to 2008, and from 2013 to 2014. Samples were collected year-round from 2000 to 2003, 2009 to 2012, and from 2015 to 2017. According to the listing Policy section 4.2, a 10 percent exceedance frequency should be used.
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411 1998 to 2017. Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows: (1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed: 400 fecal coliform bacteria per 100 milliliters.
Objective/Criterion Reference: Amendment to the Water Quality Control Plan for Ocean Waters of California - Bacteria Provisions and a Water Quality Standards Variance Policy
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Samples were collected from Ormond Beach at Arnold Rd. (44000).
Temporal Representation: Samples were collected approximately once a week from 1998 to 2017.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 27965
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 59
Number of Exceedances: 6
 
Data and Information Type: Other Agencies/Organizations provided monitoring data
Data Used to Assess Water Quality: Six out of 59 samples exceeded the Basin Plan single sample water quality objectives for indicator bacteria in marine water. zero out of 14 samples exceeded the Basin Plan geometric mean water quality objectives. Water quality samples were taken and analyzed for indicator bacteria consistent with California Code of Regulations Title 17, sections 7958-7961 and related guidance issued by California Department of Public Health .
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Basin Plan bacteria objectives state that to protect water contact recreation in marine waters individual samples shall not exceed the following limits: the total coliform density shall not exceed 10000/100 ml; the fecal coliform density shall not exceed 400/100 ml; the enterococcus density shall not exceed 104/100 ml; and the total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1 as single samples. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the total coliform density shall not exceed 1000/100 ml, the fecal coliform density shall not exceed 200/100 ml, and the enterococcus density shall not exceed 35/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018.
Objective/Criterion Reference: Water Quality Control Plan Los Angeles Region R4 Basin Plan
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The Ventura County Environmental Health Division conducted sampling at Ormond Beach at beach monitoring station VC43000, located 25 yards North of Industrial Drain (Lat: 34.13576, Long: -119.18364).
Temporal Representation: Grab samples were taken and analyzed on a weekly basis from April 2005 to October 2006 in the summer months of April to October.
Environmental Conditions:
QAPP Information: Data was collected in compliance with the sampling and testing procedures detailed in the California Department of Public Health related guidance.
QAPP Information Reference(s): California Code of Regulations Title 17, sections 7958-7960.
QAPP Information Reference(s): Draft Guidance for Salt Water Beaches. Last Update: April 10, 2006. Initial Draft: November 1997. Division of Drinking Water and Environmental Management, California Department of Health Services
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 27961
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 279
Number of Exceedances: 18
 
Data and Information Type: Other Agencies/Organizations provided monitoring data
Data Used to Assess Water Quality: 18 out of 279 samples exceeded the Basin Plan single sample water quality objectives for indicator bacteria in marine water and three out of 64 samples exceeded the Basin Plan geometric mean water quality objectives. Water quality samples were taken and analyzed for indicator bacteria consistent with California Code of Regulations Title 17, sections 7958-7961 and related guidance issued by California Department of Public Health .
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Basin Plan bacteria objectives state that to protect water contact recreation in marine waters individual samples shall not exceed the following limits: the total coliform density shall not exceed 10000/100 ml; the fecal coliform density shall not exceed 400/100 ml; the enterococcus density shall not exceed 104/100 ml; and the total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1 as single samples. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the total coliform density shall not exceed 1000/100 ml, the fecal coliform density shall not exceed 200/100 ml, and the enterococcus density shall not exceed 35/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018.
Objective/Criterion Reference: Water Quality Control Plan Los Angeles Region R4 Basin Plan
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The Ventura County Environmental Health Division conducted sampling at Ormond Beach at beach monitoring station VC42000, located 25 yards south of J Street drain (Lat: 34.13898, Long: -119.18923).
Temporal Representation: Grab samples were taken and analyzed on a weekly basis from July 1999 to October 2004.
Environmental Conditions:
QAPP Information: Data was collected in compliance with the sampling and testing procedures detailed in the California Department of Public Health related guidance.
QAPP Information Reference(s): California Code of Regulations Title 17, sections 7958-7960.
QAPP Information Reference(s): Draft Guidance for Salt Water Beaches. Last Update: April 10, 2006. Initial Draft: November 1997. Division of Drinking Water and Environmental Management, California Department of Health Services
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 27967
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 53
Number of Exceedances: 1
 
Data and Information Type: Other Agencies/Organizations provided monitoring data
Data Used to Assess Water Quality: One out of 53 samples exceeded the Basin Plan single sample water quality objectives for indicator bacteria in marine water. zero out of 14 samples exceeded the Basin Plan geometric mean water quality objectives. Water quality samples were taken and analyzed for indicator bacteria consistent with California Code of Regulations Title 17, sections 7958-7961 and related guidance issued by California Department of Public Health .
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Basin Plan bacteria objectives state that to protect water contact recreation in marine waters individual samples shall not exceed the following limits: the total coliform density shall not exceed 10000/100 ml; the fecal coliform density shall not exceed 400/100 ml; the enterococcus density shall not exceed 104/100 ml; and the total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1 as single samples. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the total coliform density shall not exceed 1000/100 ml, the fecal coliform density shall not exceed 200/100 ml, and the enterococcus density shall not exceed 35/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018.
Objective/Criterion Reference: Water Quality Control Plan Los Angeles Region R4 Basin Plan
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The Ventura County Environmental Health Division conducted sampling at Ormond Beach at beach monitoring station VC44000, located at the end of Arnold Road (Lat: 34.11952, Long: -119.1604).
Temporal Representation: Grab samples were taken and analyzed on a weekly basis from April 2005 to October 2006 in the summer months of April to October.
Environmental Conditions:
QAPP Information: Data was collected in compliance with the sampling and testing procedures detailed in the California Department of Public Health related guidance.
QAPP Information Reference(s): California Code of Regulations Title 17, sections 7958-7960.
QAPP Information Reference(s): Draft Guidance for Salt Water Beaches. Last Update: April 10, 2006. Initial Draft: November 1997. Division of Drinking Water and Environmental Management, California Department of Health Services
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 27962
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 62
Number of Exceedances: 1
 
Data and Information Type: Other Agencies/Organizations provided monitoring data
Data Used to Assess Water Quality: One out of 62 samples exceeded the Basin Plan single sample water quality objectives for indicator bacteria in marine water. zero out of 14 samples exceeded the Basin Plan geometric mean water quality objectives. Water quality samples were taken and analyzed for indicator bacteria consistent with California Code of Regulations Title 17, sections 7958-7961 and related guidance issued by California Department of Public Health .
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Basin Plan bacteria objectives state that to protect water contact recreation in marine waters individual samples shall not exceed the following limits: the total coliform density shall not exceed 10000/100 ml; the fecal coliform density shall not exceed 400/100 ml; the enterococcus density shall not exceed 104/100 ml; and the total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1 as single samples. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the total coliform density shall not exceed 1000/100 ml, the fecal coliform density shall not exceed 200/100 ml, and the enterococcus density shall not exceed 35/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018.
Objective/Criterion Reference: Water Quality Control Plan Los Angeles Region R4 Basin Plan
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The Ventura County Environmental Health Division conducted sampling at Ormond Beach at beach monitoring station VC42000, located 25 yards south of J Street drain (Lat: 34.13898, Long: -119.18923).
Temporal Representation: Grab samples were taken and analyzed on a weekly basis from April 2005 to October 2006 in the summer months of April to October.
Environmental Conditions:
QAPP Information: Data was collected in compliance with the sampling and testing procedures detailed in the California Department of Public Health related guidance.
QAPP Information Reference(s): California Code of Regulations Title 17, sections 7958-7960.
QAPP Information Reference(s): Draft Guidance for Salt Water Beaches. Last Update: April 10, 2006. Initial Draft: November 1997. Division of Drinking Water and Environmental Management, California Department of Health Services
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 27966
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 255
Number of Exceedances: 3
 
Data and Information Type: Other Agencies/Organizations provided monitoring data
Data Used to Assess Water Quality: Three out of 255 samples exceeded the Basin Plan single sample water quality objectives for indicator bacteria in marine water and one out of 64 samples exceeded the Basin Plan geometric mean water quality objectives. Water quality samples were taken and analyzed for indicator bacteria consistent with California Code of Regulations Title 17, sections 7958-7961 and related guidance issued by California Department of Public Health .
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Basin Plan bacteria objectives state that to protect water contact recreation in marine waters individual samples shall not exceed the following limits: the total coliform density shall not exceed 10000/100 ml; the fecal coliform density shall not exceed 400/100 ml; the enterococcus density shall not exceed 104/100 ml; and the total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1 as single samples. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the total coliform density shall not exceed 1000/100 ml, the fecal coliform density shall not exceed 200/100 ml, and the enterococcus density shall not exceed 35/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018.
Objective/Criterion Reference: Water Quality Control Plan Los Angeles Region R4 Basin Plan
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The Ventura County Environmental Health Division conducted sampling at Ormond Beach at beach monitoring station VC44000, located at the end of Arnold Road (Lat: 34.11952, Long: -119.1604).
Temporal Representation: Grab samples were taken and analyzed on a weekly basis from July 1999 to October 2004.
Environmental Conditions:
QAPP Information: Data was collected in compliance with the sampling and testing procedures detailed in the California Department of Public Health related guidance.
QAPP Information Reference(s): California Code of Regulations Title 17, sections 7958-7960.
QAPP Information Reference(s): Draft Guidance for Salt Water Beaches. Last Update: April 10, 2006. Initial Draft: November 1997. Division of Drinking Water and Environmental Management, California Department of Health Services
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 27963
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 278
Number of Exceedances: 35
 
Data and Information Type: Other Agencies/Organizations provided monitoring data
Data Used to Assess Water Quality: 35 out of 278 samples exceeded the Basin Plan single sample water quality objectives for indicator bacteria in marine water and 12 out of 64 samples exceeded the Basin Plan geometric mean water quality objectives. Water quality samples were taken and analyzed for indicator bacteria consistent with California Code of Regulations Title 17, sections 7958-7961 and related guidance issued by California Department of Public Health .
Data Reference: County of Ventura coastal beach bacteria monitoring data for AB411.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The Basin Plan bacteria objectives state that to protect water contact recreation in marine waters individual samples shall not exceed the following limits: the total coliform density shall not exceed 10000/100 ml; the fecal coliform density shall not exceed 400/100 ml; the enterococcus density shall not exceed 104/100 ml; and the total coliform density shall not exceed 1,000/100 ml, if the ratio of fecal-to-total coliform exceeds 0.1 as single samples. The bacteria objectives also establish that the geometric means of individual samples shall not exceed the following limits: the total coliform density shall not exceed 1000/100 ml, the fecal coliform density shall not exceed 200/100 ml, and the enterococcus density shall not exceed 35/100 ml, as a geometric mean. The bacteria objectives are found in Attachment A of Regional Board Resolution No. 2001-018.
Objective/Criterion Reference: Water Quality Control Plan Los Angeles Region R4 Basin Plan
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The Ventura County Environmental Health Division conducted sampling at Ormond Beach at beach monitoring station VC43000, located 25 yards North of Industrial Drain (Lat: 34.13576, Long: -119.18364).
Temporal Representation: Grab samples were taken and analyzed on a weekly basis from July 1999 to October 2004.
Environmental Conditions:
QAPP Information: Data was collected in compliance with the sampling and testing procedures detailed in the California Department of Public Health related guidance.
QAPP Information Reference(s): California Code of Regulations Title 17, sections 7958-7960.
QAPP Information Reference(s): Draft Guidance for Salt Water Beaches. Last Update: April 10, 2006. Initial Draft: November 1997. Division of Drinking Water and Environmental Management, California Department of Health Services
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 3528
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 84
Number of Exceedances: 2
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Eighty-four samples, 2 samples exceeding (SWRCB, 2003).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows:
(1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed:
(A) 1,000 total coliform bacteria per 100 milliliters, if the ratio of fecal/total coliform bacteria exceeds 0.1; or
(B) 10,000 total coliform bacteria per 100 milliliters; or
(C) 400 fecal coliform bacteria per 100 milliliters; or
(D) 104 enterococcus bacteria per 100 milliliters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: One station: VC(44000). This station represents the beach 50 yards on either side of the sampling point. Samples were collected at Arnold Road.
Temporal Representation: Data collected in 1999, 2000, and 2001.
Environmental Conditions:
QAPP Information: County Health Department.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 3529
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 99
Number of Exceedances: 13
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Ninety-nine samples, 13 samples exceeding (SWRCB, 2003).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows:
(1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed:
(A) 1,000 total coliform bacteria per 100 milliliters, if the ratio of fecal/total coliform bacteria exceeds 0.1; or
(B) 10,000 total coliform bacteria per 100 milliliters; or
(C) 400 fecal coliform bacteria per 100 milliliters; or
(D) 104 enterococcus bacteria per 100 milliliters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: One station: VC(42000). This station represents the beach 50 yards on either side of the sampling point. Samples were collected 50 yards south of the J Street drain.
Temporal Representation: Data collected in 1999, 2000, and 2001.
Environmental Conditions:
QAPP Information: County Health Department.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 3531
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 734
Number of Exceedances: 61
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Available data indicate sufficient exceedances of bacterial indicator objectives. There were 25 out of 735 exceedances of the geomean for total coliform, and 61 out of 734 exceedances of the geomean for enterococci (USEPA, 2007).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: Title 17 C.C.R. Section 7958 states that based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed:
(A) 1,000 total coliform bacteria per 100 milliliters, if the ratio of fecal/total coliform bacteria exceeds 0.1; or
(B) 10,000 total coliform bacteria per 100 milliliters; or
(C) 400 fecal coliform bacteria per 100 milliliters; or
(D) 104 enterococcus bacteria per 100 milliliters.

Based on the mean of the logarithms of the results of at least five weekly samples during any 30-day sampling period, the density of bacteria in water from any sampling station at a public beach or public water contact sports area, shall not exceed:
(A) 1,000 total coliform bacteria per 100 milliliters; or
(B) 200 fecal coliform bacteria per 100 milliliters; or
(C) 35 enterococcus bacteria per 100 milliliters (DHS, 1999).
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Three sampling locations: VC42000-J Street drain, 50 yards south of the drain; VC43000-Oxnard industrial drain, 50 yards north of drain; VC44000-Arnold Road.
Temporal Representation: 07/12/1999-10/31/2005
Environmental Conditions:
QAPP Information: Data record: 1999-2005, Ventura County Health Dept.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 3530
 
Pollutant: Indicator Bacteria
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: Not Recorded
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 96
Number of Exceedances: 18
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Ninety-six samples, 18 samples exceeding (SWRCB, 2003).
Data Reference: Placeholder reference 2006 303(d)
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: 17 CCR 7958 (in part): The minimum protective bacteriological standards for waters adjacent to public beaches and public water-contact sports areas shall be as follows:
(1) Based on a single sample, the density of bacteria in water from each sampling station at a public beach or public water contact sports area shall not exceed:
(A) 1,000 total coliform bacteria per 100 milliliters, if the ratio of fecal/total coliform bacteria exceeds 0.1; or
(B) 10,000 total coliform bacteria per 100 milliliters; or
(C) 400 fecal coliform bacteria per 100 milliliters; or
(D) 104 enterococcus bacteria per 100 milliliters.
Objective/Criterion Reference: Placeholder reference 2006 303(d)
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: One station: VC(43000). This station represents the beach 50 yards on either side of the sampling point. Samples were collected 50 yards north of the Oxnard Industrial drain.
Temporal Representation: Data collected in 1999, 2000, and 2001.
Environmental Conditions:
QAPP Information: County Health Department.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86883
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 320
Number of Exceedances: 75
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed bw data for Ormond Beach to determine beneficial use support and results are as follows: 75 of 320 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 Ormond Beach was collected at 3 monitoring sites [ Ormond Bch-Indust. Drain, Ormond Beach- J St., Ormond Beach-Arnold Rd.]
Temporal Representation: Data was collected over the time period 4/3/2007-8/24/2010.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86714
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 102
Number of Exceedances: 3
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Three of the 102 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Beach- J St.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86715
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 84
Number of Exceedances: 1
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: One of the 84 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Beach-Arnold Rd.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86716
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 92
Number of Exceedances: 6
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Six of the 92 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Bch-Indust. Drain.
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 75960, Indicator Bacteria
Region 4     
Ormond Beach
 
LOE ID: 86878
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 92
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Zero of the 92 geomeans exceeded the objective. The samples were collected during dry weather from April through October only. According to the listing Policy section 3.3 a four percent exceedance frequency should be used.
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 Ormond Bch-Indust. Drain.
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):