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

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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 [http://csumb.edu CSUMB].
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An [[Summaries of Environmental Topics on the Central Coast of California|environmental summary]] created by the [[ENVS 560/L Watershed Systems]] class at [[CSUMB]].
  
== Page editing notes & scoring rubric ==
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This page provides links to documents relating to [[303d]] listings and [[Total Maximum Daily Load]] (TMDL) plans in [[California's Central Coast Region]]. The page was created by the [[ENVS 560/L Watershed Systems]] class at [http://csumb.edu CSUMB].
  
This section of this page will be deleted once the page is fleshed out. Instructions to students:
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==Background==
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:''Main article: [[TMDL]]''
  
* When you START working on the page, enter your initials here (and save):
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Under 1987 provisions (section 304 (1)) to the [[Clean Water Act]] of 1972, states must identify and report all water bodies which do not meet [[water quality]] or [[beneficial use]] standards. Those impaired (polluted) water bodies not meeting water quality standards must be placed on the [[303d list]].  
** Initials: _VP_____.  Mainly working on: __Monitoring/Evaluation_____
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** Initials: RH.  Mainly working on: tmdl develop and implement fleshing this out
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** Initials: PKD.  Mainly working on: Monterey Bay area listings
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** Initials: AAY. Mainly working on: Regionally approved TMDLs considered
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** Initials: BK. Working on problem id
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** Initials: SQ.  Mainly working on: Source Analysis
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* When you're done, remove your initials, and save.
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* When done with a session, email everyone to say "I've just added _____".
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* There are 8 students. Each student should flesh out one section. The sections should be fleshed out in order if possible.
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* As you go, read everyone else's work and edit as necessary.
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* 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.
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== Background ==
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States must submit updated lists every two years. Along with identification of impaired water bodies, states must also identify stressors causing the impairment (i.e. pollutants), which are also identified on the [[303d list]]. A remediation plan must then be developed and implemented for each impaired water body listed.
  
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.
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These plans are known as total maximum daily loads (TMDLs). [[TMDL]]s are used to define and achieve a total maximum daily load for each pollutant causing impairment within a water body. The list also identifies where a TMDL has been approved by the [[Environmental Protection Agency]] (EPA) and implementation is available, but water quality standards have not yet been met, or an action other than a TMDL is being used to address the issue.
  
== Monterey Bay area listings ==
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===Summary of listing categories===
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The CCRWQCB has assigned grouped 303(d) listings into the following categories. Only categories 4A, 4B, and 5 are included in the 303(d) list.<ref>[[CCRWQCB|Central Coast Regional Water Quality Control Board]]. 2009. Clean water act sections 305(b) and 303(d) integrated report for the Central Coast region. Public review draft April.  http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/2008_0409_draft_integrated_report.pdf</ref>
  
The 303d for the Central Coast Region of California is maintained by the Central Coast Regional Water Quality Control Board and the 2006 report can be viewed [http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/r3_06_303d_reqtmdls.pdf here].  A report explaining TMDL progress since 1996 can be viewed here [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/2008_0409_draft_integrated_report.pdf  here], recommended changes since the 2006 list can be viewed [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_a.pdf  here], and explanations and appendices for each category of listing can be viewed: [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_b.shtml  Category 2],[http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_c.shtml  Category 3],[http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_d.shtml  Category 4A], [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_e.shtml  Category 5]
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* Category 1. All core uses are supported;
 +
* Category 2. At least one core use is supported;
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* Category 3. Insufficient information exists to make a determination;
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* Category 4A. At least one core use is not supported, however "a TMDL has been developed and approved by USEPA and is reasonably expected to result in the attainment of the water quality standard within a reasonable, specified time frame (p.10, CCRWQCB)."
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* Category 4B. At least one core use is not supported, however "an existing regulatory program is reasonably expected to result in the attainment of the water quality standard within a reasonable, specified timeframe (p.10, CCRWQCB)."
 +
* Category 5. At least one core use is not supported. A TMDL needs to be developed.
  
The closest listings to Monterey Bay include:
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==Central Coast 303d list documents==
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The [[303d list]] for the Central Coast region of California (Region 3) is maintained by the [[Central Coast Regional Water Quality Control Board]]. The 2006 303(d) list for the Central Coast region is available as a .pdf or .xls file<ref>CCRWQCB. 2006. 2006 CWA Section 303(d) List of Water Quality Limited Segments Requiring TMDLs (Central Coast Region). http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/r3_06_303d_reqtmdls.pdf </ref><ref>CCRWQCB. 2006. List of Water Quality Limited Segments Requiring TMDLs (Central Coast Region) http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/state_06_303dlist.xls></ref>. The 2010 303(d) statewide list is available as an .xls file<ref>CCRWQCB. 2010. Combined California 2010 303(d) list with potential sources. http://maps.waterboards.ca.gov/webmap/303d/files/2010_USEPA_approv_303d_List_Final_122311wsrcs.xls</ref> but is not available as a Central Coast-specific document as of March 2014. The 2012 303(d) statewide list was approved by the EPA on July 30, 2015 and is available via an [http://www.waterboards.ca.gov/water_issues/programs/tmdl/integrated2012.shtml integrated report] on the [[State Water Resources Control Board]] website. Although there was some Central Coast data not included in the 2012 Integrated Report, and in those cases,  decisions were carried over from the 2010 list.
  
* For each item on this list, we need:
 
** Water body
 
** Pollutant
 
** Priority or category of listing. See [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d_list.shtml here] for some indication of category.
 
** Status (in development, approved, by whom, etc)
 
** Link to 2009 fact sheet for the listing. See [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_f.shtml here] for fact sheets.
 
  
* Salinas River (lower, estuary to near Gonzales Rd crossing)[http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_f/00860.shtml#5282 Fact Sheet] 
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====Monterey Bay area reports and listings, 2015====
** Fecal Coliform, low priority, Category 5A, TMDL in Progress,  [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/salinas_fecal_col_data_anal_rpt_june05_deliverable.pdf  Report]
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/ag_waivers/docs/no_co_characterization%20rpt_06012015_final.pdf Northern Counties Groundwater Characterization, Salinas Valley, Pajaro Valley and Gilroy‐Hollister Valley]
** Nitrate, high priority, Category 5A <ref name="List303d2008">State Water Resources Control Board. 2008. Available at: http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_e.shtml</ref>
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** Chloride, medium priority, Category 5A <ref name="List303d2008"/>
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** Chlorpyrifos, high priority, Category 5A
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** Diazinon, high priority, Category 5A
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** Electrical Conductivity, low priority, Category 5A
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** Enterococcus, low priority, Category 5A
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** E. Coli,low priority, Category 5A
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** Sodium, low priority, Category 5A
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** Total Dissolved Solids, low priority, Category 5A
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** Turbidity, low priority, Category 5A
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** Unknown Toxicity, high priority, Category 5A
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** pH, low priority, Category 5A
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* Watsonville Slough, [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_f/00812.shtml Fact Sheet]
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** Pathogens, USEPA approved TMDL, [http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2006/2006_0025_wat_path_proj_rpt.pdf Project Report], low priority, Category 5A
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** Pesticides, TMDL in Progress, [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/docs/watsonville/ph4_prj_rpt_watsonville_slough_pest_update.pdf Preliminary Project Report], low priority, Category 5A
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** Ammonia, low priority
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** Chlorophyll-a,low priority
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** Chlorpyrifos, low priority
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** Diazinon, low priority
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** Sediment Toxicity,low priority
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** Sedimentation/Siltation, low priority
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** Total Coliform, low priority
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** pH, low priority
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** Pathogens, low priority, Category 5B
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** Pesticides, low priority, Category 5A
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** Low Dissolved Oxygen, low priority, Category 5A
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* Tembladero Slough,[http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_f/00856.shtml#5630 Fact Sheet] ,
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====Monterey Bay area reports and listings, 2010-2012====
** Fecal Coliform, SWRCB approved, low priority, Category 5A
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** Chlorophyll-a, CCRWQCB approved, low priority, Category 5A
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** Chlorpyrifos, CCRWQCB approved, high priority, Category 5A
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** Diazinon, CCRWQCB approved, high priority, Category 5A
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** Escherichia coli (E. Coli), CCRWQCB approved, low priority, Category 5A
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** Nitrate, CCRWQCB approved,high priority, Category 5A 
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** Sediment Toxicity, CCRWQCB approved, low priority, Category 5A
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** Total Coliform, CCRWQCB approved, low priority, Category 5A
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** Turbidity, CCRWQCB approved, low priority, Category 5A
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** Unknown Toxicity, CCRWQCB approved,high priority, Category 5A
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** pH, CCRWQCB approved, low priority, Category 5A
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** Nutrients, CCRWQCB approved, high priority, Category 5A
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** Pesticides, CCRWQCB approved, Category 5A
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* Lower Salinas River and Elkhorn Slough, Pesticides and Priority Organics, TMDL in Progress, [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/CEQA_Summary_2.pdf Project Summary]
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* Corralitos Creek, Pathogen, TMDL in Progress, [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/docs/corralitos/cor_fec_tmdlatt4_pubnot.pdf Public Hearing Proposed Basin Plan Amendment for Corralitos and Salsipuedes Creek]
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*Gabilan Creek, [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_f/00865.shtml  Fact Sheet]  <ref>CCRWQCB</ref>
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** Fecal Coliform, Low Priority, Category 5A
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** Nitrate,High Priority, Category 5A
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** pH, Low Priority, Category 5A
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** Boron, Low Priority 
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** Chlorophyll-a,Low Priority
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** Dieldrin, Low Priority
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** Electrical Conductivity, Low Priority 
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** Endrin, Low Priority 
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** Escherichia coli (E. Coli), Low Priority
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** Low Dissolved Oxygen, Low Priority 
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** Nitrogen, ammonia, High Priority, Category 5A
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** Salinity, Low Priority
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* <need about 20 of these>
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* [http://www.waterboards.ca.gov/centralcoast/board_info/agendas/2011/march/Item_14/14_att7.pdf Water Quality Conditions in the Central Coast Region Related to Agricultural Discharges]
* You can use automatically end-noted references like this <ref>this is an example refernce</ref>
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Please see the following pages for information on 303(d) listed waterbodies and their impairments in the Monterey Bay region.
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*[[Monterey Bay Area TMDL Listings]] (table)
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*[[Monterey Bay Area TMDL Listings - Priorities, Progress, and Documents]] (list)
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*[[Approaches to TMDL Development and Implementation in the Monterey Bay Area]]
  
== TMDL development and implementation ==
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====Central Coast reports and listings, 2006-2008====
  
The federal EPA provides protocols for TMDL development in general [http://www.epa.gov/owow/tmdl/strathp.pdf here], and for specific types of constituents such as pathogens [http://www.epa.gov/owow/tmdl/pathogen_all.pdf here]. These protocols outline the following components of a TMDL:
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* From the [http://www.swrcb.ca.gov/rwqcb3 CCRWQCB web site], [http://www.swrcb.ca.gov/rwqcb3/water_issues/programs/tmdl/index.shtml TMDL program], [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d_list.shtml 303d-list page]:
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** [http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/r3_06_303d_reqtmdls.pdf Impaired waterbody (303d) list (.pdf)].
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** [http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/state_06_303dlist.xls Impaired waterbody (303d) list (.xls)]
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** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/2008_0409_draft_integrated_report.pdf Clean Water Act Sections 305(b) and 303(d) Integrated Report for the Central Coast Region]  (approved 2009)
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** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_a.pdf Recommended changes since the 2006 list]
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** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_f.shtml 2008 New or Revised Fact Sheets for the Central Coast region]
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** 2008 listings by category (see [[#Summary of listing categories | Summary of listing categories]]):
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*** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_b.shtml Category 2]
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*** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_c.shtml Category 3]
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*** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_d.shtml Category 4A]
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*** [http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/appendix_e.shtml Category 5]
  
* Identify waters requiring TMDL's
 
* Priority ranking and targeting
 
* Develop TMDL's (page 1-4 of this link: http://www.epa.gov/owow/tmdl/nutrient/pdf/nutrient.pdf)
 
  
=== TMDL process overview===
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====Statewide listings including the Central Coast, 2010====
  
* Problem Statement
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*From the [http://www.waterboards.ca.gov/water_issues/programs/tmdl/integrated2010.shtml State Water Resources Control Board 2010 Integrated Report] website:
**Identify Problem
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**[http://maps.waterboards.ca.gov/webmap/303d/files/2010_USEPA_approv_303d_List_Final_122311.xls Impaired waterbody (303(d)) list, without potential sources (.xls)]
*Numeric Targets
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**[http://maps.waterboards.ca.gov/webmap/303d/files/2010_USEPA_approv_303d_List_Final_122311wsrcs.xls Impaired waterbody (303(d)) list, with potential sources (.xls)]
**Develop Numeric Targets
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**[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/table_of_contents.shtml#r3 New or revised fact sheets for Region 3 (Central Coast region)]
**Select indicators
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**[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/miscellaneous_changes_report.shtml#r3 Miscellaneous changes for the Central Coast region]
**Identify target values
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**[http://www.waterboards.ca.gov/water_issues/programs/tmdl/integrated2010.shtml Maps, data download, and other materials (2010)]
**Compare existing and target conditions
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**2010 listings by category (see [[#Summary of listing categories | Summary of listing categories]]):
*Source Assessment
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***[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/category2_report.shtml Category 2]
**Identify sources
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***[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/category3_report.shtml Category 3]
**Estimate source loadings
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***[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/category4a_report.shtml Category 4A]
*Linkage Analysis   
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***[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/category4b_report.shtml Category 4B]
**Link Targets and Sources
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***[http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/category5_report.shtml Category 5]
**Assess linkages
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**Estimate total loading capacity
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*Allocations
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**Load allocation
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**Divide load among sources
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*Monitoring/Evaluation Plan
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**Devlop monitoring plan
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**Develop review plan
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**Develop schedule
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**Implementation Plan
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**Develop plan
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***Currently, once a TMDL is developed and approved for a wtaer body it can be removed from the 303d list.
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* Implement control action
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***This can involve lowering permitted discharges if present, and using as many other strategeies as possible. Other strategies could be regulations, educational programs, best management practices, cost-sharing or other assistance, and use of volunteer groups.
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* Assess control actions
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**Evaluating success of control actions through monitoring is required in some states, but this is not directly required at the federal level unless a point source permit under section 402 is revised.
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* Build partnerships and involve the public
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* Oversee consistent national performance
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* Promote and support innovation
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== Approaches to TMDL development and implementation in the Monterey Bay area ==
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==Central Coast TMDL Projects==
  
Approaches to each of the above components vary throughout the nation. Approaches that have been used in the Monterey Region are summarized as follows:
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====TMDL Projects Currently in Development (2015-2016)====
 +
*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/carpinteria_marsh/index.shtml Carpinteria Salt Marsh] (nutrients)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/elkhorn_slough/do/index.shtml Elkhorn Slough Bennett Slough] (Biostimulatory substances)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/pajaro/nutrients/index.shtml Pajaro River] (nutrients)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/pinto_lake/index.shtml Pinto Lake catchment] (harmful algal blooms)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/salinas/sed_tox/index.shtml Salinas River] (sediment toxicity, pyrethroid pesticides)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/salinas/turbidity/index.shtml Salinas River] (turbidity)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/santa_maria/salts/index.shtml Santa Maria River] (salts)
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*[http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/santa_ynez/nutrient/index.shtml Santa Ynez River] (nutrients)
  
=== Regionally approved TMDLs considered ===
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==References==
 
+
For a full listing of approved TMDLs and developing TMDLs for the State of California
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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:
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+
<ToDo: remove the load numbers from this list (which is just intended to define the scope for the rest of the page), and if applicable, discuss those kinds of details further down in the page>
+
 
+
* 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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
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** Approved at the Federal, State and Regional level
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*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
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**Approved at the Federal, State and Regional level
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*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
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**Approved at the Federal, State and Regional level
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*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
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**Approved at the Federal, State and Regional level
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*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
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** Approved at the Regional level only.
+
 
+
=== Problem Identification ===
+
 
+
 
+
* Bullet list of approaches used in problem identification, with reference to above list of TMDLs
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* Wet and dry season sampling for fecal bacteria - used to confirm the existence of a potential pathogen problem in the water body. (Watsonville Slough)
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* Genetic testing - used as source analysis for coliform bacteria. (Watsonville Slough)
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* Assessment of turbidity - (Pajaro River)
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* Assessment of sediment budget - both excessive export of sediment (Rider Creek, Pajaro River Watershed) and lack of sediment (San Benito River, Pajaro River Watershed) can form basis for listing on the 303(d).
+
* Assessment of nitrate concentration - used to check the quality of municipal and domestic supply (Pajaro River, Llagas Creek)
+
 
+
===Numeric Targets ===
+
 
+
<Summarize approaches that have been used in TMDLs approved so far>
+
 
+
This topic brings up some important points about the style and audience that we're shooting for here.
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I think each of these sections needs to be a bit more prosaic than just a bullet list. It needs to be a bit more explanatory. Learn about your section, then explain it to the audience, citing Monterey Bay TMDLs to provide examples of what you are explaining. Start with some sentences explaining what a numeric target is (or whatever the section is about). Then *discuss* the approaches used. You could have some bulleted facts to support the discussion, but they need to be contextualized within a discussion. I'm thinking of things like this:
+
"Numeric targets are ........
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"Numeric targets in the Monterey Bay area have been specified in several forms, including ........
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"...in some cases the target has been expressed in units of concentration (e.g. ug/L), and in other cases.....
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...and then give a few examples, using ones closest to Monterey Bay. It doesn't have to be exhaustive I think.
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Also, I don't think you should discuss source analysis in the numeric targets section. We have a separate section for source analysis.
+
Imagine that your reader has just been given the job of setting numeric targets, and wants to read this page to get some ideas for how to go about it.
+
 
+
 
+
...
+
* 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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
** Sources identified to be major contributors are urban stormwater runoff from City of Watsonville and Santa Cruz County, manure applied to agricultural fields, livestock facilities and sanitary sewage collection systems. All are required to meet the following TMDLs
+
*** Geometric mean 200MPN/100ml (min of 5 samples per 30 days)
+
*** Maximum of 400MPN/100ml  (mot more than 10% of samples per 30 days)
+
 
+
*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
**Sediment TMDLs are total for all land uses from individual subwatersheds. Each land use type (agriculture, silviculture, urban/residential, sand and gravel mining, rangeland/grazing, roads and natural erosion) are considered when total annual sediment loads from individual subwatersheds were calculated.
+
*** 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
+
 
+
*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
** The reports findings state that of the three major contributors of nitrate (urban, agriculture and open space) agriculture is the major contributor and should continue with the Conditional Waiver program to reduce nitrate discharge.
+
***TMDL for nitrate in Pajaro River and Llagas Creek is set at a maximum concentration of 10 mg/l nitrate-N
+
 
+
*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
** Major contributors of sediment are timber harvest lands and roads (past and present),raods, mass wastings (land slides), roads, channel errosion and urban land uses. Each land use was considered when developing total annual loads.
+
***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
+
*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
** Mercury was historically mined in this Lake Nacimiento region. This has made it a pollutant of concern. Although these targets have not been approved Federally or from California State, the Regional Board has approved these TMDL standards.
+
***Target TMDL for water is 0.05 μg/L
+
***Target TMDL for sediment is 0.486 mg/kg
+
 
+
===Source Analysis ===
+
 
+
<SQ still working on this section>
+
 
+
<Summarize approaches that have been used in TMDLs approved so far>
+
 
+
To identify and analyze problem sources.
+
 
+
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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
*Initial Source Tracking
+
**Initial monitoring : sampling
+
**Increased monitoring to problem areas to isolate and identify sources: focused grab sampling and dye testing
+
*Genetic Analysis
+
**Toxic Gene Biomarker Method
+
***DNA extraction of E.colli colonies on agar plates in water grab samples
+
***DNA analyzed for presence/ absence of toxin gene specific to host animals
+
*Hydrologic Modification Analysis
+
**Analyze potential relationships between waterbody circulation and bacteria concentration
+
*Land Use Distribution Analysis
+
**Analyze land use in subwatersheds with exceedences of water quality objectives 
+
 
+
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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref> 
+
 
+
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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
 
+
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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
 
+
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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
 
+
===Linkage Analysis ===
+
 
+
 
+
<Summarize approaches that have been used in TMDLs approved so far>
+
 
+
...
+
 
+
=== Allocations ===
+
 
+
<last edited by Cooper 090415 @ 9:45>
+
 
+
<Summarize approaches that have been used in TMDLs approved so far>
+
 
+
The allocations indicate the amount of pollutant reduction that is required to attain specified water quality standards. Allocations may be assigned based on land use, land area, or erosional process. The regulations at 40 Code of Federal Regulations (CFR) 130.2(g) state that “Load allocations are best estimates of the loading, which may range from reasonably accurate estimates to gross allotments, depending on the availability of data and appropriate techniques for predicting the loading.” Not all TMDL allocations are in the form of load. The regulations at 40 CFR 130.2 (i) state "a mass load of the pollutant can also be expressed as a unit of concentration." 
+
 
+
The techniques used to allocate new water quality standards vary between TMDL's. Below is a list of some of the of various allocation techniques used in some of the central California coast TMDL's.
+
 
+
*Pajaro River & Llagas Creek TMDL for Nitrate[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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
**Load Allocation: The nitrate TMDL is set at a maximum concentration of 10 mg/l nitrate-N in receiving water
+
**Specific Sources: Load allocations of 10 mg/l nitrate-N are assigned to each source, including background and all watershed land uses
+
 
+
 
+
*Pajaro River (including Llagas Creek, Rider Creek and San Benito Creek) TMDL for Sediment (suspended sediment and stream bed characteristics)[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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref> 
+
**Load Allocation:
+
***Suspended Sediment: The numeric targets are based on exposure index (concentration and duration) developed by Newcombe and Jensen. 
+
***Stream Bed Characteristics: Numeric targets were established for four stream bed parameters. The parameters are residual pool volume, median gravel size in spawning gravels, %fine material for fine fines and %fine material for coarse spawning gravel.
+
**Specific Sources:
+
***Suspended Sediment: Due to varying natural suspended sediment conditions through out the watershed individual sub-basins were assigned unique load allocation numbers. 
+
***Stream Bed Characteristics: The Pajaro River including Llagas, Rider and San Benito creeks are all considered one source. All of the listed stream bed parameters exists across the different sources. 
+
 
+
 
+
*Watsonville Slough TMDL for Pathogens[http://www.swrcb.ca.gov/centralcoast/board_decisions/adopted_orders/2006/2006_0025_wat_path_proj_rpt.pdf Final Project Report, DRAFT]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
**Load Allocation: The numeric target includes a maximum concentration and geometric mean. Maximum Concentration: No more than 10% of total samples during a period of 30days can exceed a fecal coliform concentration above 400 MPN/100ml. Geometric Mean: The geometric mean of no less than five samples over a period of 30 days exceed a concentration of 200 MPN/100ml. 
+
**Specific Sources: The numeric targets apply to all samples collected in the Watsonville Slough and including Gallighan, Harkin, Hanson and Struve Sloughs.
+
 
+
 
+
*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
**Load Allocation: Allocations are in the form annual loads.
+
**Specific Sources: Allocations were divided between each sub-basin (Shingle Mill Creek, Carbonera Creek, Lompico Creek and San Lorenzo River. For each sub-basin load sources were divided between Upland THP Roads, Streamside THP Roads on Steep Slopes, Upland Public/Private Roads, Streamside Public/Private Roads on Steep Slopes, THP Land, Other Urban and Rural Land, Mass Wastig and Channel/Bank Erosion. 
+
 
+
 
+
*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]<ref>Central Coast Regional Water Quality Control Board 303 (d) Investigations and TMDL Projects</ref>
+
**Load Allocations: allocations are in the form of annual load.
+
**Specific Sources: There are three sources that were specified, General Soils, Roads and Mines.
+
 
+
=== Monitoring/Evaluation Plan === 
+
 
+
<The text below seems to be more about monitoring in general. It needs to be more specifically related to TMDLs. i.e. look in some approved TMDL Final Reports, and see what approaches they have used for monitoring plans, and then summarize these apparoaches.>
+
<For example "Several approaches to specifying a monitoring plan have been adopted in approved TMDLS in the Monterey Bay area. For example, the Blah TMDL specifies that....  On the other hand, the Whoopee TMDL, requires that .....">
+
 
+
State and local monitoring programs collect monthly and annual data for water quality assessment. Regional Water Quality Control Board (RWQCB) staff review data to assess whether applicable water quality standards are being exceeded and make recommendations for 303(d)list. The following organizations have contributed monitoring data for Monterey Bay area:
+
 
+
<The citations in this list are being incorrectly used. They would probably all be better off as normal links, not using 'ref' tags.>
+
 
+
* [http://www.ccamp.org Central Coast Ambient Monitoring Program (CCAMP)]
+
* Coastal Watershed Council (CWC) Snap Shot Day [http://www.coastal-watershed.org/Programs/Snapshot_Day/index.htm]
+
* CWC Clean Streams Project [http://www.coastal-watershed.org/Programs/Clean_Streams/index.htm]
+
* National Estuarine Research Reserve Monitoring Program (NERRMP)[http://nerrs.noaa.gov/Monitoring/]
+
* Central Coast Long Term Environmental Assessment Program (CCLEAN)[http://www.cclean.org/]
+
* Central Coast Watershed Studies (CCOWS)[http://ccows.csumb.edu/home/]
+
* Central Coast Water Quality Preservation, Inc.(CCWQP) Northern and Southern Area Ag-Waiver Monitoring [http://www.ccwqp.org/]
+
* Department of Health Services [http://www.cdph.ca.gov/Pages/default.aspx]
+
* Department of Pesticide Regulation [http://www.cdpr.ca.gov/]
+
* State Mussel Watch [http://csc-s-maps-q.csc.noaa.gov/legislativeatlas/lawDetails.jsp?lawID=117]
+
* State Toxic Substances Monitoring [http://csc-s-maps-q.csc.noaa.gov/legislativeatlas/lawDetails.jsp?lawID=117]
+
* Bay Protection and Toxic Cleanup Program [http://www.waterboards.ca.gov/water_issues/programs/bptcp/]
+
 
+
Monitoring is required to identify impaired waters, prioritize clean up plans and provide feedback on effectiveness of TMDL implementation. TMDLs are evaluated...
+
 
+
===Implementation Plan  ===
+
 
+
 
+
<Summarize approaches that have been used in TMDLs approved so far>
+
 
+
...
+
 
+
== References ==
+
  
 
<references/>
 
<references/>
  
== Links ==
+
==See also==
 +
* [[Central Coast Region Agricultural Waiver]]
 +
* [[Central Coast Regional Water Quality Control Board (CCRWQCB)]]
 +
* [[TMDL]]
 +
* [[Monterey Bay Area TMDL Listings - Priorities, Progress, and Documents]]
 +
* [[Monterey Bay Area TMDL Listings | Table of 303d Listed Waters in Monterey Bay Region]]
 +
* [[Approaches to TMDL Development and Implementation in the Monterey Bay Area]]
 +
* [[TMDL for Fecal Coliform for the Lower Salinas River Watershed, Monterey County, California]]
 +
* [[TMDL for Nutrients in Lower Salinas River Watershed, Monterey County, California]]
 +
* [[TMDL for Chlorpyrifos and Diazinon in Lower Salinas River Watershed, Monterey County, California]]
 +
* [[Monterey Bay Area TMDL Listings| Table of 303d Listed Waters in Monterey Bay Region]]
 +
* [[ENVS 560/L Watershed Systems]] class
 +
* [[Lower Salinas River Watershed Nutrient TMDL - Implementation and Monitoring Progress]]
 +
* [[Water Quality Control Plan for the Central Coast Region]]
  
* [[ENVS 560/L Watershed Systems]] class
+
==Disclaimer==
* ...
+
This page may contain student work completed as part of assigned coursework. It may not be accurate. It does not necessary reflect the opinion or policy of [[CSUMB]], its staff, or students.

Latest revision as of 11:48, 21 May 2017

An environmental summary created by the ENVS 560/L Watershed Systems class at CSUMB.

This page provides links to documents relating to 303d listings and Total Maximum Daily Load (TMDL) plans in California's Central Coast Region. The page was created by the ENVS 560/L Watershed Systems class at CSUMB.

Background

Main article: TMDL

Under 1987 provisions (section 304 (1)) to the Clean Water Act of 1972, states must identify and report all water bodies which do not meet water quality or beneficial use standards. Those impaired (polluted) water bodies not meeting water quality standards must be placed on the 303d list.

States must submit updated lists every two years. Along with identification of impaired water bodies, states must also identify stressors causing the impairment (i.e. pollutants), which are also identified on the 303d list. A remediation plan must then be developed and implemented for each impaired water body listed.

These plans are known as total maximum daily loads (TMDLs). TMDLs are used to define and achieve a total maximum daily load for each pollutant causing impairment within a water body. The list also identifies where a TMDL has been approved by the Environmental Protection Agency (EPA) and implementation is available, but water quality standards have not yet been met, or an action other than a TMDL is being used to address the issue.

Summary of listing categories

The CCRWQCB has assigned grouped 303(d) listings into the following categories. Only categories 4A, 4B, and 5 are included in the 303(d) list.[1]

  • Category 1. All core uses are supported;
  • Category 2. At least one core use is supported;
  • Category 3. Insufficient information exists to make a determination;
  • Category 4A. At least one core use is not supported, however "a TMDL has been developed and approved by USEPA and is reasonably expected to result in the attainment of the water quality standard within a reasonable, specified time frame (p.10, CCRWQCB)."
  • Category 4B. At least one core use is not supported, however "an existing regulatory program is reasonably expected to result in the attainment of the water quality standard within a reasonable, specified timeframe (p.10, CCRWQCB)."
  • Category 5. At least one core use is not supported. A TMDL needs to be developed.

Central Coast 303d list documents

The 303d list for the Central Coast region of California (Region 3) is maintained by the Central Coast Regional Water Quality Control Board. The 2006 303(d) list for the Central Coast region is available as a .pdf or .xls file[2][3]. The 2010 303(d) statewide list is available as an .xls file[4] but is not available as a Central Coast-specific document as of March 2014. The 2012 303(d) statewide list was approved by the EPA on July 30, 2015 and is available via an integrated report on the State Water Resources Control Board website. Although there was some Central Coast data not included in the 2012 Integrated Report, and in those cases, decisions were carried over from the 2010 list.


Monterey Bay area reports and listings, 2015

Monterey Bay area reports and listings, 2010-2012

Please see the following pages for information on 303(d) listed waterbodies and their impairments in the Monterey Bay region.

Central Coast reports and listings, 2006-2008


Statewide listings including the Central Coast, 2010

Central Coast TMDL Projects

TMDL Projects Currently in Development (2015-2016)

References

  1. Central Coast Regional Water Quality Control Board. 2009. Clean water act sections 305(b) and 303(d) integrated report for the Central Coast region. Public review draft April. http://www.swrcb.ca.gov/centralcoast/water_issues/programs/tmdl/303d/2008_0409_draft_integrated_report.pdf
  2. CCRWQCB. 2006. 2006 CWA Section 303(d) List of Water Quality Limited Segments Requiring TMDLs (Central Coast Region). http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/r3_06_303d_reqtmdls.pdf
  3. CCRWQCB. 2006. List of Water Quality Limited Segments Requiring TMDLs (Central Coast Region) http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/state_06_303dlist.xls>
  4. CCRWQCB. 2010. Combined California 2010 303(d) list with potential sources. http://maps.waterboards.ca.gov/webmap/303d/files/2010_USEPA_approv_303d_List_Final_122311wsrcs.xls

See also

Disclaimer

This page may contain student work completed as part of assigned coursework. It may not be accurate. It does not necessary reflect the opinion or policy of CSUMB, its staff, or students.