Difference between revisions of "Total Maximum Daily Load for Nitrate for the Lower Salinas River Watershed, Monterey County, California"

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A [[Watershed Issues|watershed-related issue]] examined by the [http://sep.csumb.edu/wiki/index.php/ENVS_560/L_Watershed_Systems ENVS 560/L Watershed Systems] class at [http://csumb.edu CSUMB].
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#Redirect [[TMDL for Nutrients in Lower Salinas River Watershed, Monterey County, California]]
 
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==Summary==
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...a few sentences...
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==Location==
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...Name the smallest watershed (or other applicable region) within which the issue occurs...
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==Resource/s at stake==
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...What environmental resource/s are at stake?...
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[[Drinking water]] is an important resource which has been threatened by high levels of nitrates in the Lower Salinas River Watershed <ref name="Nitrate Drinking Water">UC Davis study on elevated nitrates as a threat to drinking water and public health in the Salinas Valley [http://www.thecalifornian.com/article/20120317/NEWS01/203170316/Contamination-conundrum-Spotlight-nitrate-Salinas-Valley-drinking-water] </ref><ref name="Addressing nitrate in CA drinking water''>2012 UC Davis study on groundwater nitrate contamination in California [http://groundwaternitrate.ucdavis.edu/files/138956.pdf]</ref><ref name="Agricultural impacts on groundwater nitrate''>Article on agricultural impacts on groundwater nitrate [www.swhydro.arizona.edu/archive/V8_N4/feature2.pdf] </ref>.
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==Stakeholders==
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[[Grower-Shipper association]]
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==Laws, policies, & regulations==
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===Regulatory background===
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...What laws, policies, and/or regulations are involved?...
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====Preliminary draft project report for nutrient TMDLs (Lower Salinas River Watershed)====
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A recent (March 2012) ''preliminary'' draft project report by the California Regional Water Quality Control Board, (CRWQCB) Central Coast Region ([[CCRWQCB]]) on TMDLs for nutrients in the Lower Salinas River Watershed<ref name="TMDLs CA Waterboard">Link to Waterboard TMDLs for Nutrients in the Lower Salinas Watershed [http://www.waterboards.ca.gov/rwqcb3/water_issues/programs/tmdl/docs/salinas/nutrients/index.shtml]</ref>.
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In this document, the work group identifies multiple [[Beneficial uses (Clean Water Act)|beneficial uses]] (BUs) as impaired, including those for drinking water supply, livestock watering, and aquatic habitat BUs.
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From the preliminary draft document<ref name="TMDLs CA Waterboard"/>:
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<blockquote>
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"''Problem Statement'':
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"Discharges of nitrogen compounds and orthophosphate are occurring at levels in surface waters
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which are impairing a  wide spectrum of beneficial uses and, therefore, constitute a serious
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water quality problem. The municipal and domestic drinking water supply (MUN, GWR)
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beneficial uses and the range of aquatic habitat beneficial uses are currently impaired; potential
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or future beneficial uses of the agricultural irrigation water supply (AGR) for sensitive crops may
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be impaired..." <br /><br />"A total of 34
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waterbody/pollutant combinations are impaired due to exceedances of water quality objectives. 
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The pollutants addressed in this TMDL are nitrate, un-ionized ammonia, and orthophosphate –
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orthophosphate is included as a pollutant due to biostimulatory impairments of surface waters. 
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Reducing these pollutants is also anticipated to address several 303(d)-listed dissolved oxygen
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and chlorophyll a impairments in the TMDL project area."
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</blockquote>
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==Systems==
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... What elements of the biophysical system are/were involved?...
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==Science==
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...What scientific studies are or would be relevant / already completed?...
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==Tools==
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...What analytical (e.g. modeling) tools were or could be used?...
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==Future research==
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...What knowledge gaps remain?...
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...Suggest a CWSP MS thesis topic that could contribute to the issue...
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...Suggest a topic for a hypothetical study that had unlimited resources...
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==References==
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<references/>
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==See also==
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*[[TMDLs_in_the_Monterey_Bay_Region_of_California#Approaches_to_developing_Numeric_Targets_for_Nutrients|TMDLs in the Monterey Bay Region of California]]
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*[[Total Maximum Daily Load for Nutrients in Lower Salinas River Watershed, Monterey County, California|TMDLs for nutrients in the Lower Salinas River Watershed, Monterey County]]
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==Disclaimer==
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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.
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Latest revision as of 11:25, 10 April 2012