| Water Body Name: | Eureka Plain HU, Humboldt Bay, North Jetty |
| Water Body ID: | CAC1100005020200818034709 |
| Water Body Type: | Coastal & Bay Shoreline |
DECISION ID |
170863 |
Region 1 |
Eureka Plain HU, Humboldt Bay, North Jetty |
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| Pollutant: | Trash |
| 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)(2018) |
| Revision Status | Revised |
| Impairment from Pollutant or Pollution: | Pollutant |
| Regional Board Conclusion: | This pollutant is being considered for placement on the CWA section 303(d) List under section 3.7 of the Listing Policy. Two lines of evidence are available to assess this pollutant and these LOEs are not used to consider waterbody placement on the CWA 303(d) list. The data in these LOEs were not suitable for assessing beneficial use attainment due to inadequate data quality and lack of spatial detail to discern the area that was surveyed. (Sections 2.2.2 and 6.1.4 of the Listing Policy) The trash data were collected during volunteer clean-up days by individual groups and were reported two ways: 1) individual trash count by type, and 2) trash weight collected. Each group reported an individual geographic coordinate set along with collection data. Group trash data were then tallied using a singular geographic coordinate set for each beach. Because the distances cleaned were estimated by the individual groups and multiple individual groups were collecting data on the same day, the amount of trash (count or weight) per area is uncertain. Additionally, assessing trash by weight is problematic as trash like bottles can trap water and/or sand thus skewing the trash results to estimate more trash than present on the beach. Based on the readily available data and information, the weight of evidence indicates that there is insufficient information to place this water segment-pollutant combination on the CWA section 303(d) List; however, available information indicates that beneficial uses may be potentially threatened. This conclusion is based on the staff findings that: 1. It is unknown if the data used satisfies the data quality requirements of section 6.1.4 of the Policy. 2. It is unknown if the data used satisfies the data quantity requirements of section 6.1.5 of the Policy. 3. Presence of trash in the waterbody segment while the reported data lack suitable quality and spatial detail to discern the area that was surveyed as required by Sections 2.2.2 and 6.1.4 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: | 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. The readily available data and information is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. |
| State Board Review of Regional Board Conclusion and Recommendation: | |
| State Board Decision Recommendation: | |
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| LOE ID: | 352309 | ||||
| Pollutant: | Trash | ||||
| LOE Subgroup: | Pollutant-Nuisance | ||||
| Matrix: | -N/A | ||||
| Fraction: | None | ||||
| Beneficial Use: | Non-Contact Recreation | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | Volunteers collected trash, categorized the types, and provided the total weight of all trash in pounds, during one-day cleanup events with totals of 4915 pounds of trash on 09/19/2015, 85.69 pounds of trash on 09/17/2016, 696.55 pounds of trash on 09/16/2017, and 475.19 pounds of trash on 9/15/2018, and 1311.01 pounds of trash on 9/21/2019. There were counts of numbers of pieces of 40 separate categories of trash (e.g., cigarette butts, bottles, grocery bags). | ||||
| Data Reference: | Habitat from the California Coastal Cleanup Day for the 2026 Integrated Report in Region 1 | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Waters shall not contain floating material, including solids, liquids, foams, and scum, in concentrations that cause nuisance or adversely affect beneficial uses. (North Coast Basin Plan) |
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| Objective/Criterion Reference: | Water Quality Control Plan (Basin Plan) - North Coast Region (Region 1) | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | A single set of coordinates were provided, representing an unspecified area of Samoa Beach and Manila Beach (Samoa_Manila): Latitude, 40.82975; longitude, -124.1811; Datum: WGS84. | ||||
| Temporal Representation: | Samples were collected on five different one-day cleanup events on 9/19/2015, 9/17/2016, 9/16/2017, 9/15/2018, and 9/21/2019. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | Humboldt Coastal Waterway Plastic Impairment QAPP equivalent. | ||||
| QAPP Information Reference(s): | Stanford Environmental Law Clinic, on behalf of Northcoast Environmental Center - QAPP equivalent document - Humboldt Coastal Waterway Plastic Impairment - 402579 | ||||
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| LOE ID: | 198730 | ||||
| Pollutant: | Trash | ||||
| LOE Subgroup: | Pollutant-Nuisance | ||||
| Matrix: | -N/A | ||||
| Fraction: | None | ||||
| Beneficial Use: | Non-Contact Recreation | ||||
| Number of Samples: | 0 | ||||
| Number of Exceedances: | 0 | ||||
| Data and Information Type: | Not Specified | ||||
| Data Used to Assess Water Quality: | Volunteers collected trash, categorized the types, and provided the total weight of all trash in pounds, during one-day cleanup events on 09/25/2010, 09/17/2011, 09/21/2013, and 9/20/2014, with totals of 444, 200, 15, and 1000 lbs., respectively. There were counts of numbers of pieces of 41 separate categories of trash (e.g., cigarette butts, bottles, grocery bags). | ||||
| Data Reference: | Dataset provided by the Center for Biological Diversity. Contains trash data from California Coastal Comission-sponsored beach cleanup days in the North Coast Region at nine sites: Clam Beach County Park, North Jetty/Samoa Dunes Recreation Area, South Jetty/South Spit, Trinidad State Beach, Glass Beach, MacKerricher State Park, Ten Mile Beach, North Salmon Creek Beach, and South Salmon Creek Beach. | ||||
| SWAMP Data: | Non-SWAMP | ||||
| Water Quality Objective/Criterion: | Criteria/Objective Trash shall not be present in ocean waters, along shorelines or adjacent areas in amounts that adversely affect beneficial uses or cause nuisance. (California Ocean Plan, 2019). | ||||
| Objective/Criterion Reference: | SWRCB. 2005. Water Quality Control Plan, Ocean Waters of California (Ocean Plan). California Environmental Protection Agency, State Water Resources Control Board. February 2, 2019 | ||||
| Evaluation Guideline: | |||||
| Guideline Reference: | |||||
| Spatial Representation: | A single set of coordinates were provided, representing an unspecified area of the North Jetty/Samoa Dunes Recreation Area: Latitude 40.76172, Longitude -124.227. | ||||
| Temporal Representation: | Samples were taken on four different one-day cleanup events on 9/25/2010, 09/17/2011, 09/21/2013, and 9/20/2014. | ||||
| Environmental Conditions: | |||||
| QAPP Information: | A "Site Captain Guide" document was provided, which included instructions to volunteers for a trash clean-up day. The document does not meet Listing Policy guidelines as a QAPP document. | ||||
| QAPP Information Reference(s): | Site Captain Guide 2017 | ||||