| Hypothesis and Data Gap Tool for the San Joaquin River Dissolved Oxygen TMDL |
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Browse Hypotheses:
By Category ,
By Location
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List of Non-Aeration Alternatives for Improving D.O. Conditions in the Deep Water Ship Channel |
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| The Technical Working Group (TWG) of the San Joaquin River Dissolved Oxygen TMDL process is developing screening criteria which it will use to evaluate implementation alternatives. Below are the main categories and alternative actions/programs associated with them. Stakeholders are encouraged to suggest additional categories and alternatives. Comments can be made on the alternatives actions, data gaps associated with them, and on the importance of the alternative. In addition references t can be linked to the alternative that can support comments on any issue. To be kept informed of TWG meetings and process, subscribe to the sjr-tech-com listserve by vising (website URL). Or contact Kevin Wolf (530) 758-4211, kevin@wolfandassociates.com | |
| Sediment | |
| Phosphate (0 Hypotheses) (0 Data Gaps) | |
| Light in DWSC (2 Hypotheses) (0 Data Gaps) | |
| Light in SJR (1 Hypotheses) (1 Data Gaps) | |
| Light in eastside rivers (0 Hypotheses) (0 Data Gaps) | |
| Temperature (0 Hypotheses) (0 Data Gaps) | |
| Other nutrients (0 Hypotheses) (0 Data Gaps) | |
| Toxicants (1 Hypotheses) (1 Data Gaps) | |
| SOD in DWSC (4 Hypotheses) (1 Data Gaps) | |
| Sediment - Overall (0 Hypotheses) (0 Data Gaps) | |
| Algal Load by Location | |
| Mud and Salt Sloughs including Grasslands (3 Hypotheses) (3 Data Gaps) | |
| SJR above Lander Ave including upstream eastside tributaries, Eastside Bypass, and if river flows return, up to Friant Dam (1 Hypotheses) (1 Data Gaps) | |
| Eastside tributaries Stanislaus, Tuolumne and Merced Rivers (3 Hypotheses) (3 Data Gaps) | |
| West side north of Mud and Salt Slough (0 Hypotheses) (0 Data Gaps) | |
| South Delta from the Tracy Pumps north to the DWSC including City of Tracy (1 Hypotheses) (1 Data Gaps) | |
| Stockton sloughs and the Turning Basin (3 Hypotheses) (2 Data Gaps) | |
| City of Stockton sewage ponds (3 Hypotheses) (2 Data Gaps) | |
| SJR - Other mainstem connected sewage treatment facilities including Lathrop, Manteca, Turlock, and Modesto (0 Hypotheses) (0 Data Gaps) | |
| DWSC itself (1 Hypotheses) (0 Data Gaps) | |
| Algal Load Overall (2 Hypotheses) (0 Data Gaps) | |
| (0 Hypotheses) (0 Data Gaps) | |
| SJR - Old River to Lander Ave (0 Hypotheses) (0 Data Gaps) | |
| SJR - Below Old River including French Camp Slough and Calaveras River (0 Hypotheses) (0 Data Gaps) | |
| Algal Load by Precursor | |
| Wildlife refuges and wetlands (1 Hypotheses) (1 Data Gaps) | |
| Farmland nutrients (3 Hypotheses) (2 Data Gaps) | |
| Feedlot nutrients (2 Hypotheses) (1 Data Gaps) | |
| Airborne nutrients (2 Hypotheses) (1 Data Gaps) | |
| Groundwater nutrients (2 Hypotheses) (1 Data Gaps) | |
| Nutrients overall (1 Hypotheses) (1 Data Gaps) | |
| Non-Algal CBOD | |
| Urban stormwater runoff (4 Hypotheses) (4 Data Gaps) | |
| Wetlands (1 Hypotheses) (1 Data Gaps) | |
| Ag stormwater runoff (1 Hypotheses) (1 Data Gaps) | |
| Ag drainage (1 Hypotheses) (1 Data Gaps) | |
| Riparian vegetation (1 Hypotheses) (1 Data Gaps) | |
| Non-Algal CBOD Overall (0 Hypotheses) (0 Data Gaps) | |
| Urban dry season runoff (1 Hypotheses) (0 Data Gaps) | |
| Urban Wastewater Treatment (0 Hypotheses) (0 Data Gaps) | |
| Ammonia and NBOD | |
| Stockton WTP (2 Hypotheses) (2 Data Gaps) | |
| French Camp Slough (3 Hypotheses) (2 Data Gaps) | |
| DWSC algae (0 Hypotheses) (0 Data Gaps) | |
| Harding Drain (1 Hypotheses) (1 Data Gaps) | |
| Modesto WTP (0 Hypotheses) (0 Data Gaps) | |
| Manteca WTP (0 Hypotheses) (0 Data Gaps) | |
| Ammonia and NBOD - Overall (0 Hypotheses) (0 Data Gaps) | |
| Water Temperature | |
| Sediment (0 Hypotheses) (0 Data Gaps) | |
| Shading and riparian forest (0 Hypotheses) (0 Data Gaps) | |
| Eastside dam releases (0 Hypotheses) (0 Data Gaps) | |
| Lander Ave to Merced River (0 Hypotheses) (0 Data Gaps) | |
| Water Temperature Overall (1 Hypotheses) (0 Data Gaps) | |
| Merced River to DWSC (0 Hypotheses) (0 Data Gaps) | |
| Flows / Residence Time | |
| Head of Old River Barrier operations (6 Hypotheses) (3 Data Gaps) | |
| Delta Ag Barriers and low head pumping (2 Hypotheses) (2 Data Gaps) | |
| Export pumping rates and timing (3 Hypotheses) (2 Data Gaps) | |
| Eastside tributary flows (Stanislaus, Tuolumne and Merced) (4 Hypotheses) (1 Data Gaps) | |
| SJR - Old River to Lander Ave (4 Hypotheses) (1 Data Gaps) | |
| SJR - groundwater inflow (0 Hypotheses) (0 Data Gaps) | |
| SJR - Sewage treatement effluent flows (0 Hypotheses) (0 Data Gaps) | |
| SJR - Friant Dam releases (0 Hypotheses) (0 Data Gaps) | |
| SJR - Recirculation (e.g. Newman Wasteway, Mendota Pool) (0 Hypotheses) (0 Data Gaps) | |
| Efficiency to load and flow mprovements in subwatersheds (0 Hypotheses) (0 Data Gaps) | |
| Sacramento River flows at Delta Cross Channel (1 Hypotheses) (0 Data Gaps) | |
| Flows and Residence Time - General (2 Hypotheses) (1 Data Gaps) | |
| SJR - (lower) drainages and diversions (0 Hypotheses) (0 Data Gaps) | |
| DWSC Geometry | |
| DWSC fills in over time (0 Hypotheses) (0 Data Gaps) | |
| Burns Cut isolates upper DWSC (0 Hypotheses) (0 Data Gaps) | |
| Burns Cut extends to Turner Cut and isolates entire low DO section of DWSC (0 Hypotheses) (0 Data Gaps) | |
| DWSC Geometry -Overall (1 Hypotheses) (0 Data Gaps) | |
| Channel deepening options (0 Hypotheses) (0 Data Gaps) | |
| Toxicants | |
| Pesiticides that harm algal herbivores (e.g. zooplankton) (0 Hypotheses) (0 Data Gaps) | |
| Chemicals from Port runoff (1 Hypotheses) (0 Data Gaps) | |
| Chemicals from local DWSC sloughs (1 Hypotheses) (0 Data Gaps) | |
| Chemicals with urban stormwater runoff (0 Hypotheses) (0 Data Gaps) | |
| Toxicants -Overall (1 Hypotheses) (1 Data Gaps) | |
| Herbicides that harm algae (0 Hypotheses) (0 Data Gaps) | |
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Project of Jones and Stokes as part of the Bay Delta Authority Work Assignment for the SJR DO TMDL Process with pro-bono work contributed by Wolf and Associates.
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For more information contact: Kevin Wolf - kevin@wolfandassociates.com (530)758.4211
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