Cal. Code Regs. tit. 23 § 3939.12
On July 1, 2004, the Los Angeles Regional Water Quality Control Board (Regional Board) adopted Resolution No. 2004-011 amending the Water Quality Control Plan for the Los Angeles Region (Basin Plan). The amendment revised the Basin Plan by incorporating a Total Maximum Daily Load (TMDL) for bacteria at Los Angeles Harbor (Inner Cabrillo Beach and Main Ship Channel, including the Inner Harbor). The regulatory provisions are added to Chapter 7 of the Water Quality Control Plan.
Numeric targets for this TMDL are expressed as days of exceedance of bacteria objectives contained in the Basin Plan. These targets apply to three seasons: summer dry-weather (April 1 to October 31), winter dry-weather (November 1 to March 31), and wet-weather (days with 0.1 inch or more of rain and the three days following the rain event); and to monitoring sites specified in the Basin Plan.
For nonpoint sources (load allocations), single sample bacterial densities in the Main Ship Channel for any season are zero days of allowable exceedance, and the geometric mean for any season or monitoring site is zero days of allowable exceedance. Single sample bacterial densities for summer dry-weather at Inner Cabrillo Beach are zero days of allowable exceedance. Single sample exceedance days for winter dry-weather and wet-weather seasons for specific monitoring sites at Inner Cabrillo Beach are presented in Basin Plan Table 7-11.2. The geometric mean for any season or monitoring site at Inner Cabrillo Beach is zero days of allowable exceedance.
For point sources (wasteload allocations), single sample bacterial densities for summer dry-weather in the Main Ship Channel are zero days of allowable exceedance. Single sample exceedance days for winter dry-weather and wet-weather seasons for specific monitoring sites in the Main Ship Channel are presented in Basin Plan Table 7-11.2. The geometric mean for any season or monitoring site in the Main Ship Channel is zero days of allowable exceedance. Single sample bacterial densities at Inner Cabrillo Beach for any season are zero days of allowable exceedance, and the geometric mean for any season or monitoring site at Inner Cabrillo Beach is zero days of allowable exceedance.
Discharges from general National Pollutant Discharge Elimination System (NPDES) permits, general industrial storm water permits, and general construction storm water permits are not expected to be a significant source of bacteria. Therefore, the wasteload allocations for these discharges are zero (0) days of allowable exceedances for all three time periods and for the single sample limits and the geometric mean. Any future enrollees under a general NPDES permit, general industrial storm water permit, or general construction storm water permit within the watershed will also be subject to a wasteload allocation of zero days of allowable exceedances.
Resolution No R12-007, Amendment to the Water Quality Control Plan for the Los Angeles Region to Revise the Total Maximum Daily Loads for Bacteria in the Santa Monica Bay Beaches; the Marina del Rey Harbor Mothers' Beach and Back Basins; and the Los Angeles Harbor Inner Cabrillo Beach and Main Ship Channel and to Revise Implementation Provisions for Water Contact Recreation Bacteria Objectives
The basin plan amendment revises Resolution No. 2004-011 by refining allowable exceedances through re-evaluation of the reference system. The amendment further refines the geometric mean implementation provisions in Resolution No. 2002-022 and applies them to this TMDL.
Cal. Code Regs. Tit. 23, § 3939.12
2. Amendments to basin plan filed 11-7-2013; amendments approved by State Water Resources Control Board 3-19-2013 pursuant to Resolution No. 2013-0008; amendments approved by OAL pursuant to Government Code section 11353 11-7-2013 (Register 2013, No. 45).
2. Amendments to basin plan filed 11-7-2013; amendments approved by State Water Resources Control Board 3-19-2013 pursuant to Resolution No. 2013-0008; amendments approved by OAL pursuant to Government Code section 11353 11-7-2013 (Register 2013, No. 45).