Difference between revisions of "TMDLs in the Monterey Bay Region of California"

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(Regionally approved TMDLs considered)
(Regionally approved TMDLs considered)
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=== Regionally approved TMDLs considered ===
 
=== Regionally approved TMDLs considered ===
 
For a full listing of approved TMDLs and developing TMDLs for the State of California
 
For a full listing of approved TMDLs and developing TMDLs for the State of California
Central Coast Regional Water Quality Control Board folow this link[http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d_and_tmdl_projects.shtml]
+
Central Coast Regional Water Quality Control Board follow this link [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d_and_tmdl_projects.shtml CCRWCB]
  
 
State of California Central Coast Regional Water Quality Control Board approved TMDLs for the Monterey Bay area
 
State of California Central Coast Regional Water Quality Control Board approved TMDLs for the Monterey Bay area
  
* Watsonville Slough Pathogens TMDL[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2006/2006_0025_wat_path_proj_rpt.pdf]
+
* Watsonville Slough Pathogens TMDL [http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2006/2006_0025_wat_path_proj_rpt.pdf Final Project Report, DRAFT]
 
** Geometric mean 200MPN/100ml (min of 5 samples per 30 days)
 
** Geometric mean 200MPN/100ml (min of 5 samples per 30 days)
 
** Maximum of 400MPN/100ml  (mot more than 10% of samples per 30 days)
 
** Maximum of 400MPN/100ml  (mot more than 10% of samples per 30 days)
 
*** Approved at the Federal, State and Regional level
 
*** Approved at the Federal, State and Regional level
*Pajaro River (Including San Benito River, Llagas Creek and Rider Creek) Sediment TMDL[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2005/2005_0132_paj_sed_tmdl_attach_b_final_project_report.pdf]
+
*Pajaro River (Including San Benito River, Llagas Creek and Rider Creek) Sediment TMDL[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2005/2005_0132_paj_sed_tmdl_attach_b_final_project_report.pdf Final Project Report]
**Sediment TMDLs are total for all landuses from individual subwatersheds.
+
**Sediment TMDLs are total for all land uses from individual subwatersheds.
 
*** Tres Pinos - 53,778 metric tons/year
 
*** Tres Pinos - 53,778 metric tons/year
 
***San Benito - 39,679 metric tons/year
 
***San Benito - 39,679 metric tons/year
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***Mouth of Pajaro - 7,268 metric tons/year
 
***Mouth of Pajaro - 7,268 metric tons/year
 
****Approved at the Federal, State and Regional level
 
****Approved at the Federal, State and Regional level
*Pajaro River (Including Llagas Creek) Nitrate TMDL[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2005/2005_0131_paj_nitrate_tmdl_attach_b_final_project_report.pdf]
+
*Pajaro River (Including Llagas Creek) Nitrate TMDL [http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2005/2005_0131_paj_nitrate_tmdl_attach_b_final_project_report.pdf Final Project Report]
 
**TMDL for nitrate in Pajaro River and Llagas Creek is set at a maximum concentration of 10 mg/l nitrate-N
 
**TMDL for nitrate in Pajaro River and Llagas Creek is set at a maximum concentration of 10 mg/l nitrate-N
 
***Approved at the Federal, State and Regional level
 
***Approved at the Federal, State and Regional level
*San Lorenzo River (Including Carbonera Creek, Lompico Creek, and Shingle Mill Creek) Sediment TMDL[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2002/2002_0063_slr_sed_tmdl_proj_rpt.pdf]
+
*San Lorenzo River (Including Carbonera Creek, Lompico Creek, and Shingle Mill Creek) Sediment TMDL [http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2002/2002_0063_slr_sed_tmdl_proj_rpt.pdf Report]
 
** TMDLs for sediment are
 
** TMDLs for sediment are
 
***Shingle Mill Creek- 857 tons/year
 
***Shingle Mill Creek- 857 tons/year
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***San Lorenzo River - 306,139 tons/year
 
***San Lorenzo River - 306,139 tons/year
 
****Approved at the Federal, State and Regional level
 
****Approved at the Federal, State and Regional level
*Las Tablas Creek and Lake Nacimiento Mercury TMDL[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2002/2002_0107_las_tablas_mercury_tmdl_final_proj_rpt.pdf]
+
*Las Tablas Creek and Lake Nacimiento Mercury TMDL [http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2002/2002_0107_las_tablas_mercury_tmdl_final_proj_rpt.pdf Draft Report]
 
** Target Mercury TMDL
 
** Target Mercury TMDL
 
***Target TMDL for water is 0.05 μg/L
 
***Target TMDL for water is 0.05 μg/L

Revision as of 11:24, 13 April 2009

This page summarizes the development and implementation of Total Maximum Daily Load (TMDL) plans in the Monterey Bay region of California. The page is being created by the ENVS 560/L Watershed Systems class at CSUMB.

Page editing notes & scoring rubric

This section of this page will be deleted once the page is fleshed out. Instructions to students:

  • When you START working on the page, enter your initials here (and save):
    • Initials: _______. Mainly working on: _______
    • Initials: PKD. Mainly working on: Monterey Bay area listings
    • Initials: AAY. Mainly working on: Regionally approved TMDLs considered
  • When you're done, remove your initials, and save.
  • When done with a session, email everyone to say "I've just added _____".
  • There are 8 students. Each student should flesh out one section. The sections should be fleshed out in order if possible.
  • As you go, read everyone else's work and edit as necessary.
  • The whole page needs to be of good quality for anyone to get a full score. Individuals would only be downgraded if they made only minimal contribution. All would be downgraded if page fell short of being a brief but informative snapshot of a few example TMDLs in our immediate vicinity.

Background

Under the federal Clean Water Act, all impaired (e.g. polluted) waters in the USA must be placed on a list called the 303d list. A remediation plan must then be developed and implemented for each listing on each impaired water body. These plans are called TMDLs, referring to the goal of defining and achieving a total maximum daily load of each pollutant within each body.

Monterey Bay area listings

The 303d for the Central Coast Region of California is maintained by the Central Coast Regional Water Quality Control Board and can be viewed here

The closest listings to Monterey Bay include:

  • For each item on this list, we need:
    • Water body
    • Pollutant
    • Priority or category of listing. See here for some indication of category.
    • Status (in development, approved, by whom, etc)
    • Link to 2009 fact sheet for the listing. See here for fact sheets.
  • Salinas River (lower, estuary to near Gonzales Rd crossing)Fact Sheet
    • Fecal Coliform, TMDL in Progress, Report
    • Nitrate
    • Chloride
    • Chlorpyrifos
    • Diazinon
    • Electrical Conductivity
    • Enterococcus
    • E. Coli
    • Sodium
    • Total Dissolved Solids
    • Turbidity
    • Unknown Toxicity
    • pH
  • Watsonville Slough, Fact Sheet
    • Pathogens, USEPA approved TMDL, Project Report [1]
    • Pesticides, TMDL in Progress, Preliminary Project Report
    • Ammonia
    • Chlorophyll-a
    • Chlorpyrifos
    • Diazinon
    • Sediment Toxicity )
    • Sedimentation/Siltation
    • Total Coliform
    • Unknown Toxicity
    • pH
  • Tembladero Slough,Fact Sheet ,
    • Fecal Coliform, SWRCB approved
    • Chlorophyll-a, CCRWQCB approved
    • Chlorpyrifos, CCRWQCB approved
    • Diazinon, CCRWQCB approved
    • Escherichia coli (E. Coli), CCRWQCB approved
    • Nitrate, CCRWQCB approved
    • Sediment Toxicity, CCRWQCB approved
    • Total Coliform, CCRWQCB approved
    • Turbidity, CCRWQCB approved
    • Unknown Toxicity, CCRWQCB approved
    • pH, CCRWQCB approved
    • Nutrients, CCRWQCB approved
    • Pesticides, CCRWQCB approved
  • Lower Salinas River and Elkhorn Slough, Pesticides and Priority Organics, TMDL in Progress, Project Summary
  • Corralitos Creek, Pathogen, TMDL in Progress, Public Hearing Proposed Basin Plan Amendment for Corralitos and Salsipuedes Creek
  • Gabilan Creek, Fact Sheet [2]
    • Fecal Coliform
    • Nitrate
    • Boron
    • Chlorophyll-a
    • Dieldrin
    • Electrical Conductivity
    • Endrin
    • Escherichia coli (E. Coli)
    • Low Dissolved Oxygen
    • Nitrogen, ammonia (Total Ammonia)
    • Salinity
  • <need about 20 of these>
  • You can use automatically end-noted references like this [3]

TMDL development and implementation

The federal EPA provides protocols for TMDL development in general at [1] ,specifically for pathogens at [2] that outline the following components of a TMDL:

  • Identify waters requiring TMDL's
  • Priority ranking and targeting
  • Develop TMDL's
    • <Need to list the actual components of a TMDL here, like the Problem Statement etc...>
  • Implement control action
  • Assess control actions
  • Build partnerships and involve the public
  • Oversee consistent national performance
  • Promote and support innovation

Approaches to TMDL development and implementation in the Monterey Bay area

Approaches to each of the above components vary throughout the nation. Approaches that have been used in the Monterey Region are summarized as follows:

Regionally approved TMDLs considered

For a full listing of approved TMDLs and developing TMDLs for the State of California Central Coast Regional Water Quality Control Board follow this link CCRWCB

State of California Central Coast Regional Water Quality Control Board approved TMDLs for the Monterey Bay area

  • Watsonville Slough Pathogens TMDL Final Project Report, DRAFT
    • Geometric mean 200MPN/100ml (min of 5 samples per 30 days)
    • Maximum of 400MPN/100ml (mot more than 10% of samples per 30 days)
      • Approved at the Federal, State and Regional level
  • Pajaro River (Including San Benito River, Llagas Creek and Rider Creek) Sediment TMDLFinal Project Report
    • Sediment TMDLs are total for all land uses from individual subwatersheds.
      • Tres Pinos - 53,778 metric tons/year
      • San Benito - 39,679 metric tons/year
      • Llagas - 9,185 metric tons/year
      • Uvas - 15,177 metric tons/year
      • Upper Pajaro - 43,951 metric tons/year
      • Corralitos (including Rider Creek) - 11,389 metric tons/year
      • Mouth of Pajaro - 7,268 metric tons/year
        • Approved at the Federal, State and Regional level
  • Pajaro River (Including Llagas Creek) Nitrate TMDL Final Project Report
    • TMDL for nitrate in Pajaro River and Llagas Creek is set at a maximum concentration of 10 mg/l nitrate-N
      • Approved at the Federal, State and Regional level
  • San Lorenzo River (Including Carbonera Creek, Lompico Creek, and Shingle Mill Creek) Sediment TMDL Report
    • TMDLs for sediment are
      • Shingle Mill Creek- 857 tons/year
      • Carbonera Creek - 11,728 tons/year
      • Carbonera Creek - 9,542 tons/year
      • San Lorenzo River - 306,139 tons/year
        • Approved at the Federal, State and Regional level
  • Las Tablas Creek and Lake Nacimiento Mercury TMDL Draft Report
    • Target Mercury TMDL
      • Target TMDL for water is 0.05 μg/L
      • Target TMDL for sediment is 0.486 mg/kg
        • Approved at the Regional level only.

Problem Identification

  • Bullet list of approaches used in problem identification, with reference to above list of TMDLs
  • ...

...next component (see list of all components above) ... e.g. Source Analysis

...

...next component (see list of all components above) ...

...

...next component (see list of all components above) ...

...

...last component = implemenatation

References

  1. Central Coast Regional Water Quality Control Board
  2. CCRWQCB
  3. this is an example refernce

Links