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Lower Salinas River Watershed Nutrient TMDL


Problem Statement - Many surface waterbodies in the lower Salinas River and Reclamation Canal basin, and the Morro Cojo Slough subwatershed are impaired due to exceedances of water quality criteria for nitrate, unionized ammonia, and associated nutrient-related problems such as excessive orthophosphate, dissolved oxygen imbalances, toxicity, and excess algal biomass.  As a result, a wide range of current or potential designated beneficial uses – including aquatic habitat, drinking water supply, groundwater recharge, and agricultural supply - are not being supported in these waterbodies, and therefore  these impairments constitute a serious water quality problem.    This project identifies the water quality impairments and describes a plan to achieve water quality objectives and ultimately restore the designated beneficial uses of surface waters.

Final TMDL Documents

Status and Public Notices

Status: Report Card - October 2014
Public Notice: None at this time.

Approval status

Central Coast Water Board - approved March 14, 2013.
State Water Resources Control Board - approved February 4, 2014.
Office of Administrative Law (OAL) - approved May 7, 2014, which is the effective date.
US Environmental Protection Agency - approved October 13, 2015.


For Additional Information

  • To be notified of updates and meetings regarding this TMDL please subscribe to the Lower Salinas River-Reclamation Canal Basin Nutrient TMDL email subscription list.
  • Please contact Pete Osmolovsky at 805-549-3699 or by email at Pete.Osmolovsky@waterboards.ca.gov
  • Many or all of the documents available on this webpage are presented in a Portable Document Format (PDF).  You will need Adobe Acrobat Reader to view these documents.  You can download the latest version of Adobe Acrobat Reader, free of charge, by clicking here.
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