| Water Body Name: | San Pablo Creek |
| Water Body ID: | CAR2066001419990219094913 |
| Water Body Type: | River & Stream |
Lines of Evidence (LOEs) for Decision ID 7657 |
| LOE ID: | 5661 |
| Pollutant: | Trash |
| LOE Subgroup: | Pollutant-Nuisance |
| Matrix: | Not Specified |
| Fraction: | None |
| Beneficial Use: | Non-Contact Recreation |
| Number of Samples: | 3 |
| Number of Exceedances: | 3 |
| Data and Information Type: | Occurrence of conditions judged to cause impairment |
| Data Used to Assess Water Quality: | Data results were obtained through application the RTA methodology, developed by the Surface Water Ambient Monitoring Program (SWAMP). The RTA documents the total number and characteristics of pieces of trash per one hundred feet of stream or shoreline. The trash assessment protocol involves picking up and tallying all of the trash items found within the defined boundaries of a site. The tally results for level of trash (relating to REC2) and threat to aquatic life (relating to WILD) assessment parameters were considered for the listing determination. These results are available for field visits/trash surveys conducted in July 2002 according to the Rapid Trash Assessment methodology.
This waterbody had level of trash scores in the poor category (indicating impairment of non-contact water recreational beneficial use) at two different locations and on two different dates. |
| Data Reference: | Rapid Trash Assessment (RTA) data collected by the SF Bay Region Surface Water Ambient Monitoring Program from 2002-2005 and method description |
| Water Quality Objective/Criterion: | The Basin Plan prohibits discharge of Rubbish, refuse, bark, sawdust, or other solid wastes into surface waters or at any place where they would contact or where they would be eventually transported to surface waters, including flood plain areas.
The Basin Plan has a narrative objective for floating material, Waters shall not contain floating material, including solids, liquids, foams, and scum, in concentrations that cause nuisance or adversely affect beneficial uses. The Basin Plan has a narrative objective for settleable material, Waters shall not contain substances in concentrations that result in the deposition of material that cause nuisance or adversely affect beneficial uses. |
| Objective/Criterion Reference: | San Francisco Bay Basin (Region 2) Water Quality Control Plan (Basin Plan) |
| Evaluation Guideline: | If the Rapid Trash Assessment (RTA) Parameter 1 (Level of Trash) is in the poor condition category (scores 0-5), REC2 is not supported. This level of trash distracts the eye on first glance, making the site unsuitable for recreation. The RTA defines poor condition for this parameter as follows, trash distracts the eye on first glance. Stream, bank surfaces, and immediate riparian zone contain substantial levels of litter and debris (>100 pieces). Evidence of site being used frequently by people: many cans, bottles, and food wrappers, blankets, clothing. |
| Guideline Reference: | A Rapid Trash Assessment Method Applied to Waters of the San Francisco Bay Region:Trash Measurement in Streams |
| Spatial Representation: | RTA data were collected for this waterbody in two different locations in July 2002 and both locations scored in the poor condition category for the Level of Trash parameter. |
| Temporal Representation: | RTA data were collected on two different dates, July 18, and 30 2002, and data from both dates were in the poor condition category for the Level of Trash parameter. |
| Environmental Conditions: | |
| QAPP Information: | For RTA trash assessment data to be considered, the data must have been collected by field operators that have received a 2-hour training in the Rapid Trash Assessment methodology. |
| QAPP Information Reference(s): | |