| Water Body Name: | Eureka Plain HU, Jacoby Creek watershed |
| Water Body ID: | CAR1100001319990617093415 |
| Water Body Type: | River & Stream |
DECISION ID |
24392 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
||
| Pollutant: | Aluminum |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the Section 303(d) List under Section 3.1 of the Listing Policy. Under Section 3.1, a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. No new data were assessed during the current Integrated Report cycle, however it should be noted that the use rating and decision language have been altered to reflect that there are insufficient data available to make a listing determination.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category (i.e., sufficient justification to not 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) Zero of the 5 samples exceeded the aluminum objective, and this sample size is insufficient to determine with the power and confidence of the Listing Policy if standards are not met, as a minimum of either (A) 16 samples, or (B) greater than or equal 2 exceedances of the objective with less than 16 samples is needed for application of Table 3.1 (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
| LOE ID: | 25371 | ||||
| Pollutant: | Aluminum | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 5 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 5 aluminum samples collected from Jacoby Creek exceed the objective. The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the SWAMP Summary Report for the North Coast Region for Years 2000-2006 (NCRWQCB 2008). | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007): The Maximum Contaminant Level for aluminum is 1.0 mg/l (1,000 ug/L). | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Samples were collected from Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (Puckett 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
DECISION ID |
24418 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
||
| Pollutant: | Chloride |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the Section 303(d) List under Section 3.2 of the Listing Policy. Under Section 3.2, a single line of evidence is necessary to assess listing status. One line of evidence is available to assess protection of the municipal and domestic supply (MUN) beneficial use. It should be noted that no new data were assessed this Integrated Report cycle, however the use rating and decision language was edit to reflect that there were an insufficient number of samples available to determine with the power and confidence of the Listing Policy if the MUN beneficial use is being protected.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category (i.e., sufficient justification to not 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) Zero of five samples exceed the objective, however this sample size is insufficient to determine with the power and confidence of the Listing Policy if standards are not met, as a minimum of either (1) 26 samples, or (2) greater than or equal to 5 exceedances of the objective with less than 26 samples is needed for application of Table 3.2. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
| LOE ID: | 25425 | ||||
| Pollutant: | Chloride | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Not Recorded | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 5 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 5 chloride samples collected in Jacoby Creek exceed the evaluation guideline. The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the SWAMP Summary Report for the North Coast Region for Years 2000-2006 (NCRWQCB 2008). | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007): Waters shall not contain taste- or odor-producing substances in concentrations that impart undesirable tastes or odors to fish flesh or other edible products of aquatic origin, or that cause nuisance or adversely affect beneficial uses. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | Per 22 CCR 64449: The recommended Secondary Maximum Contaminant Level for chloride is 250 mg/L. | ||||
| Guideline Reference: | Title 22. Division 4. Chapter 15. Sections 64400 et seq. California Code of Regulations | ||||
| Spatial Representation: | Samples were collected from Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (SWAMP 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
DECISION ID |
27898 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
||
| Pollutant: | Nitrogen, ammonia (Total Ammonia) |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the Section 303(d) List under Section 3.1 of the Listing Policy. Under Section 3.1, a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. No new data were assessed during the current Integrated Report cycle, however it should be noted that the use rating and decision language have been altered to reflect that there are insufficient data available to make a listing determination. Also, the pollutant name was changed from "Ammonia as Nitrogen" to "Nitrogen, ammonia (Total Ammonia)".
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category (i.e., sufficient justification to not 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) Zero of the 4 samples exceed the evaluation guideline, and this sample size is insufficient to determine with the power and confidence of the Listing Policy if standards are not met, as a minimum of either (A) 16 samples, or (B) greater than or equal 2 exceedances of the objective with less than 16 samples is needed for application of Table 3.1 (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
| LOE ID: | 26309 | ||||
| Pollutant: | Ammonia as Nitrogen | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Aquatic Life Use: | Fish Migration | Fish Spawning | Freshwater Replenishment | Preservation of Rare & Endangered Species | Wildlife Habitat | ||||
| Number of Samples: | 4 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 4 ammonia as nitrogen samples collected from Jacoby Creek exceed the objective. The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the SWAMP Summary Report for the North Coast Region for Years 2000-2006 (NCRWQCB 2008). | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007): All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | Per the National Recommended Water Quality Criteria (USEPA 2006): The 1-hour average concentration (acute criterion or CMC) of total ammonia nitrogen (in mg N/L) for freshwater where salmonid fish are present, which is not to be exceeded more than once every three years on average, is calculated using the following equation: CMC=0.275/(1+10^(7.204 - pH)) + 39.0/(1+10^(pH - 7.204)). | ||||
| Guideline Reference: | National Recommended Water Quality Criteria. United States Environmental Protection Agency. Office of Water. Office of Science and Technology | ||||
| Spatial Representation: | Samples were collected from Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (Puckett 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
DECISION ID |
22647 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
||
| Pollutant: | Specific Conductivity |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the section 303(d) list under section 3.2 of the Listing Policy. Under this section of the policy, a minimum of one line of evidence is needed to assess listing status. One line of evidence is available in the administrative record to assess this pollutant.
It should be noted that in the Decision for this water body-pollutant pair from the 2010 Integrated Report cycle a Use Rating of "Fully Supporting" was selected, when it should have been "Insufficient Information" for the reason stated in (3) below. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category. This conclusion is based on the staff findings that: (1) The data used satisfies the data quality requirements of section 6.1.4 of the Policy. (2) The data used satisfies the data quantity requirements of section 6.1.5 of the Policy. (3) Zero of five samples exceed the objective and this sample size is insufficient to determine with the power and confidence of the Listing Policy if standards are not met. A minimum of either (a) 26 samples, or (b) greater than or equal 5 exceedances of the MUN objective with less than 26 samples is needed for application of Table 3.2. (4) Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
| LOE ID: | 21237 | ||||
| Pollutant: | Specific Conductivity | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | None | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 5 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 5 specific conductivity grab samples collected from Jacoby Creek exceed the objective. The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the SWAMP Summary Report for the North Coast Region for Years 2000-2006 (NCRWQCB 2008). | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007): All waters shall be maintained free of toxic substances in concentrations that are toxic to, or that produce detrimental physiological responses in human, plant, animal, or aquatic life. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | Per 22 CCR 64449: The recommended secondary Maximum Containment Level (MCL) is 900 uS/cm. | ||||
| Guideline Reference: | Title 22. Division 4. Chapter 15. Sections 64400 et seq. California Code of Regulations | ||||
| Spatial Representation: | Samples were collected from upper Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (Puckett 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
DECISION ID |
24348 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
||
| Pollutant: | Sulfates |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the Section 303(d) List under Section 3.2 of the Listing Policy. Under Section 3.2, a single line of evidence is necessary to assess listing status. One line of evidence is available to assess protection of the municipal and domestic supply (MUN) beneficial use. It should be noted that no new data were assessed this Integrated Report cycle, however two changes were made to the Decision: (1) the use rating and decision language was edit to reflect that there were an insufficient number of samples available to determine with the power and confidence of the Listing Policy if the MUN beneficial use is being protected and (2) LOE 25534 from the 2010 Integrated Report cycle was replaced by LOE 46936 this current cycle to correct an error in the "Number of Samples" field.
Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category (i.e., sufficient justification to not 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) Zero of 5 samples exceed the objective, however this sample size is insufficient to determine with the power and confidence of the Listing Policy if standards are not met, as a minimum of either (1) 26 samples, or (2) greater than or equal to 5 exceedances of the objective with less than 26 samples is needed for application of Table 3.2. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Decision Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because it cannot be determined if applicable water quality standards are not being exceeded. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
| LOE ID: | 25534 | ||||
| Pollutant: | Sulfates | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Not Recorded | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 50 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 5 sulfate samples collected in Jacoby Creek exceed the evaluation guideline. The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the 5-Year Monitoring Report (NCRWQCB 2008). | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007, p. 3-3.00): Waters shall not contain taste- or odor-producing substances in concentrations that impart undesirable tastes or odors to fish flesh or other edible products of aquatic origin, or that cause nuisance or adversely affect beneficial uses. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | Per 22 CCR 64449 (Table 64449-B): The recommended secondary maximum contaminant level for sulfate is 250 mg/L. | ||||
| Guideline Reference: | Title 22. Division 4. Chapter 15. Sections 64400 et seq. California Code of Regulations | ||||
| Spatial Representation: | Samples were collected from Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (SWAMP 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
|
|||||
| LOE ID: | 46936 | ||||
| Pollutant: | Sulfates | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Not Recorded | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 5 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 5 sulfate samples collected in Jacoby Creek exceed the evaluation guideline. The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the 5-Year Monitoring Report (NCRWQCB 2008). This LOE replaces LOE 25534 from the 2010 Integrated Report cycle, and is an exact duplicate of the original LOE except that the "Number of Samples" field has been revised to reflect that 5, not 50, samples were collected. | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007, p. 3-3.00): Waters shall not contain taste or odor-producing substances in concentrations that impart undesirable tastes or odors to fish flesh or other edible products of aquatic origin, or that cause nuisance or adversely affect beneficial uses. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | Per 22 CCR 64449 (Table 64449-B): The recommended secondary maximum contaminant level for sulfate is 250 mg/L. | ||||
| Guideline Reference: | Title 22. Division 4. Chapter 15. Sections 64400 et seq. California Code of Regulations | ||||
| Spatial Representation: | Samples were collected from Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (SWAMP 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
DECISION ID |
22631 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
||
| Pollutant: | Arsenic | Cadmium | Chromium (total) | Copper | Lead | Mercury | Nickel | Selenium | Silver | Zinc |
| Final Listing Decision: | Do Not List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | Do Not List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Original |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Regional Water Board Conclusion:
This pollutant was considered for placement on the section 303(d) list in a previous Integrated Report cycle. No new information was reviewed for this current Integrated Report cycle. Therefore, the previous conclusion remains unchanged, and is as follows: This pollutant is being considered for placement on the Section 303(d) List under Section 3.1 of the Listing Policy. Under Section 3.1, a single line of evidence is necessary to assess listing status. One line of evidence is available in the administrative record to assess this pollutant. None of the 45 metals samples exceed the water quality objective. Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category (i.e., sufficient justification to not 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) None of the 45 samples exceeded the metal objectives, and this does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy. (4) Pursuant to Section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met. |
| Regional Board Decision Recommendation: | No new data were assessed for this assessment cycle. The conclusion reached in the previous cycle remains the same. The Regional Board will update this decision when new data and information become available in a future assessment cycle. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
|
|||||
| LOE ID: | 21521 | ||||
| Pollutant: | Arsenic | Cadmium | Chromium (total) | Copper | Lead | Mercury | Nickel | Selenium | Silver | Zinc | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Water | ||||
| Fraction: | Total | ||||
| Beneficial Use: | Municipal & Domestic Supply | ||||
| Number of Samples: | 45 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | PHYSICAL/CHEMICAL MONITORING | ||||
| Data Used to Assess Water Quality: | None of the 45 metal samples collected in Jacoby Creek exceed the objectives. There were 3 to 5 samples collected for each of the 10 metal parameters The samples were collected as part of the Surface Water Ambient Water Monitoring Program (SWAMP). The data are found in the SWAMP Summary Report for the North Coast Region for Years 2000-2006 (NCRWQCB 2008). | ||||
| Data Reference: | Surface Water Ambient Monitoring Program (SWAMP). Summary Report for the North Coast Region (RWQCB-1) for years 2000-2006. North Coast Regional Water Quality Control Board. March 2008 | ||||
| SWAMP Data: | SWAMP | ||||
| Water Quality Objective/Criterion: | Per the Basin Plan (NCRWQCB 2007): Arsenic objective is 0.05 mg/L. Cadmium objective is 0.01 mg/L. Chromium objective is 0.05 mg/L. Lead objective is 0.05 mg/L. Mercury objective is 0.002 mg/L. Selenium objective is 0.01 mg/L. Silver objective is 0.05 mg/L. Per 22 CCR 64431: Nickel maximum contaminant level is 0.1 mg/L. Per 22 CCR 64449: Copper secondary maximum contaminant level is 1.0 mg/L. Zinc secondary maximum contaminant level is 5.0 mg/L. | ||||
| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Title 22. Division 4. Chapter 15. Sections 64400 et seq. California Code of Regulations | |||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | Samples were collected from Lower Jacoby Creek (SWAMP Station ID 110JACBAY). Samples were collected from well-mixed flows in glides or riffles. | ||||
| Temporal Representation: | The samples were collected during 5 site visits from February 2002 to June 2002 Site visits corresponded to fall, winter, spring and early summer seasonal conditions. | ||||
| Environmental Conditions: | There are no known environmental conditions (e.g., seasonality, land use practices, fire events, storms, etc.) that are related to these data. | ||||
| QAPP Information: | Quality control was conducted in accordance with the SWAMP Quality Assurance Management Plan (SWAMP 2002). | ||||
| QAPP Information Reference(s): | 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) | ||||
DECISION ID |
20150 |
Region 1 |
Eureka Plain HU, Jacoby Creek watershed |
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| Pollutant: | Sediment |
| Final Listing Decision: | List on 303(d) list (TMDL required list) |
| Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2010) |
| Revision Status | Original |
| Sources: | Source Unknown |
| Expected TMDL Completion Date: | 2019 |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | Regional Water Board Conclusion:
This pollutant was considered for placement on the section 303(d) List in a previous Integrated Report cycle. No new information was reviewed for this current Integrated Report cycle. Therefore, the previous conclusion remains unchanged, and is as follows: 303(d) listing decisions made prior to 2006 were not held in an assessment database. The Regional Boards will update this decision when new data and information become available and are assessed. |
| Regional Board Decision Recommendation: | No new data were assessed for this assessment cycle. The conclusion reached in the previous cycle remains the same. The Regional Board will update this decision when new data and information become available in a future assessment cycle. |
| State Board Staff Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board. |
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| LOE ID: | 3670 | ||||
| Pollutant: | Sediment | ||||
| LOE Subgroup: | Pollutant-Water | ||||
| Matrix: | Not Specified | ||||
| Fraction: | None | ||||
| Beneficial Use: | Cold Freshwater Habitat | ||||
| Number of Samples: | |||||
| Number of Exceedances: | |||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | This LOE is a placeholder to support a 303(d) listing decision made prior to 2006. | ||||
| Data Reference: | Placeholder reference pre-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: | Unknown | ||||
| QAPP Information Reference(s): | |||||