# Draft 2008 California 303(d)/305(b) Integrated Report

# Supporting Information

## Regional Board 5 - Central Valley Region

Water Body Name: | Walker Slough (partly in Delta Waterways, eastern portion)
Water Body ID: | CAR5314000020020111134652
Water Body Type: | River & Stream

DECISION ID | 7209
Pollutant: | Pathogens
Final Listing Decision: | List on 303(d) list (being addressed by USEPA approved TMDL)
Last Listing Cycle's Final Listing Decision: | List on 303(d) list (TMDL required list)(2006)
Revision Status | Revised
Sources: | Recreational and Tourism Activities (non-boating) | Urban Runoff/Storm Sewers
TMDL Name: | Stockton Area Sloughs and Rivers - Pathogens
TMDL Project Code: | 721
Date TMDL Approved by USEPA: | 05/13/2008
Impairment from Pollutant or Pollution: | Pollutant
Weight of Evidence: | TMDL has been completed and approved by RWQCB and USEPA, and is expected to result in attainment of the standard. The Stockton Urban Waterways pathogen TMDL has been approved by the Central Valley Regional Water Quality Control Board in 2008 and approved by USEPA on 13 May 2008.
RWQCB Board Decision / Staff Recommendation: | After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be listed as exceeding standards but being addressed by a USEPA approved TMDL.
SWRCB Board Decision / Staff Recommendation: | N/A
USEPA Decision: |

Lines of Evidence (LOEs) for Decision ID 7209

LOE ID: | 4575
Pollutant: | Pathogens
LOE Subgroup: | Pollutant-Water
Matrix: | Water
Fraction: | Not Recorded
Beneficial Use: | Water Contact Recreation
Number of Samples: | 0
Number of Exceedances: | 0
Data and Information Type: | Not Specified
Data Used to Asses Water Quality: | Unspecified--This LOE is a placeholder to support a 303(d) listing decision made prior to 2006.
Data Reference: | Placeholder reference pre-2006 303(d)
Water Quality Objective/Criterion: | Unspecified
Objective/Criterion Reference: | Placeholder reference pre-2006 303(d)
Evaluation Guideline: | Unspecified
Guideline Reference: | Placeholder reference pre-2006 303(d)
Spatial Representation: | Unspecified
Temporal Representation: | Unspecified
Environmental Conditions: | Unspecified
QAPP Information: | Unspecified
QAPP Information Reference(s):