| Water Body Name: | San Francisquito Creek |
| Water Body ID: | CAR2055004019980929144005 |
| Water Body Type: | River & Stream |
Lines of Evidence (LOEs) for Decision ID 7655 |
| LOE ID: | 5537 |
| Pollutant: | Trash |
| LOE Subgroup: | Pollutant-Nuisance |
| Matrix: | Not Specified |
| Fraction: | None |
| Beneficial Use: | Wildlife Habitat |
| Number of Samples: | 23 |
| Number of Exceedances: | 5 |
| Data and Information Type: | Occurrence of conditions judged to cause impairment |
| Data Used to Assess Water Quality: | Data results were obtained through application of the Urban Rapid Trash Assessment (URTA) methodology, developed by the Santa Clara Valley Urban Runoff Pollution Prevention Program. The URTA is a modification of the Rapid Trash Assessment (RTA) developed by the Surface Water Ambient Monitoring Program (SWAMP). The URTA method 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 transportable, persistent, buoyant litter (relating to WILD) assessment parameters were considered for the listing determination. These results are available for field visits/trash surveys conducted in February 2005, July 2005, May 2006, October 2006, May 2007, September 2007, and October 2007 according to the Urban Rapid Trash Assessment (URTA) methodology. This waterbody had transportable, Persistent, Buoyant Litter parameter scores in the marginal urban and poor category (indicating threat to Wildlife Habitat beneficial uses) at four different locations and on three different dates. |
| Data Reference: | Memo: Development of Urban Rapid Trash Assessment Protocol. March 13, 2006 |
| Spreadsheet of Urban Rapid Trash Assessment (URTA) data collected by the Santa Clara Valley Urban Runoff Pollution Prevention Program, 2004-2007 | |
| 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 URTA Parameter 3 (Transportable, Persistent, Buoyant Litter) is in the marginal urban or poor condition category (scores 0-10), then WILD is not supported. The URTA defines marginal urban or poor condition for this parameter as follows. this level of trash is a medium prevalence (76-200 pieces) or large amount (>200 pieces) of transportable, persistent, buoyant litter such as: hard or soft plastics, styrofoam, balloons, cigarette butts. These types of items are all detrimental to aquatic life. |
| Guideline Reference: | Memo: Development of Urban Rapid Trash Assessment Protocol. March 13, 2006 |
| Spatial Representation: | URTA data were collected for this waterbody in six locations from 2004 through 2006. |
| Temporal Representation: | URTA data were collected for this waterbody on seven separate dates, 2004 through 2006. |
| Environmental Conditions: | |
| QAPP Information: | Data were collected by trained staff in accordance with URTA methodology developed by SCVURPPP and are deemed reliable and of sufficient quality on which to base listing determinations. |
| QAPP Information Reference(s): | |
| | |
| LOE ID: | 5538 |
| Pollutant: | Trash |
| LOE Subgroup: | Pollutant-Nuisance |
| Matrix: | Not Specified |
| Fraction: | None |
| Beneficial Use: | Non-Contact Recreation |
| Number of Samples: | 23 |
| Number of Exceedances: | 7 |
| Data and Information Type: | Occurrence of conditions judged to cause impairment |
| Data Used to Assess Water Quality: | Data results were obtained through application of the Urban Rapid Trash Assessment (URTA) methodology, developed by the Santa Clara Valley Urban Runoff Pollution Prevention Program. The URTA is a modification of the Rapid Trash Assessment (RTA) developed by the Surface Water Ambient Monitoring Program (SWAMP). The URTA method 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 transportable, persistent, buoyant litter (relating to WILD) assessment parameters were considered for the listing determination. These results are available for field visits/trash surveys conducted in February 2005, July 2005, May 2006, October 2006, May 2007, September 2007, and October 2007 according to the Urban Rapid Trash Assessment (URTA) methodology. This waterbody had level of trash parameter scores in the poor category (indicating impairment of non-contact water recreational beneficial uses) at different four locations and on four different dates. |
| Data Reference: | Memo: Development of Urban Rapid Trash Assessment Protocol. March 13, 2006 |
| Spreadsheet of Urban Rapid Trash Assessment (URTA) data collected by the Santa Clara Valley Urban Runoff Pollution Prevention Program, 2004-2007 | |
| 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 Urban Rapid Trash Assessment (URTA) Parameter 1 (Level of Trash) is in the poor condition category (scores 0-5), REC2 is not supported. The URTA defines poor condition for this parameter as a level of trash that distracts the eye on first glance. Stream, bank surfaces, and immediate riparian zone contain substantial levels of litter and debris. Evidence of site being used frequently by people: many cans, bottles, and food wrappers, blankets, clothing. |
| Guideline Reference: | Memo: Development of Urban Rapid Trash Assessment Protocol. March 13, 2006 |
| Spatial Representation: | URTA data were collected for this waterbody in six locations from 2004 through 2006. |
| Temporal Representation: | URTA data were collected for this waterbody on seven separate dates, 2004 through 2006. |
| Environmental Conditions: | |
| QAPP Information: | Data were collected by trained staff in accordance with URTA methodology developed by SCVURPPP and are deemed reliable and of sufficient quality on which to base listing determinations. |
| QAPP Information Reference(s): | |