A Look at the Delta through the years and the latest attempt to mess with Nature or Revise the Delta!

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1 ppt vs X2:  Human water consumption vs select fish species modeled needs

     Historically, the Delta had fresh water or less than one parts chloride per 1000 parts water.  All historical studies of Delta and Suisun Marsh area refer to "1 ppt" as the measurement.  The Delta was all fresh water as shown by the first records of salinity compiled by a company located in Crocket in the western end of the Carquinez Straits in 1905..  Since the later 1990's DWR has been promoting the "X2" standard which results in substantially increasing the salinity in parts of the Delta to a brackish water level which is not the natural environment for the Delta according to historical records.  DWR and other government agencies have created reports based on computer modeling which claim that certain native fish species need higher salining to survive, and they also claim that crops grown in the Delta can withstand higher salinity levels. 
     What DWR doesn't seem to report (via Delta Plan, ISC, BDCP, Water Plan, etc) is the effect on shallow residential drinking water wells in the Delta, including the effects from saltwater intruision into the Delta when the NorCal aquifers are not replenished due to increased exports of Sacramento River water North of the Delta and around the Delta.  Below are graphics and documents from just a few of the studies regarding this key topic for the Delta.  Click on each graphic and the full size version will pop up, and the online link to the original data will show, if found at a website online.  Note that some of the historical records were scanned from the actual documents that are not found online at DWR or the other government agencies which first published the data. 
     The question remains unanswered despite years of computer modeling, studies, water monitoring and lots of talking heads: 
How much fresh water of 1 ppt or less will remain in the Delta once all the new water diversion projects are up and running?  Since the current documents keep referring to X2, will DWR even answer the question in the Delta Plan or BDCP?
     




























Issues/water-issues/salinity-wq-toxins/salinity/4. 1-17-05 X2 Powerpoint Presentation.pdf
cv-salts-exported.pdf
D1641rev.pdf
Issues/water-issues/salinity-wq-toxins/salinity/1971-WRD1379.pdf
Issues/water-issues/salinity-wq-toxins/salinity/1997bd_standards.pdf
Issues/water-issues/salinity-wq-toxins/salinity/1998-seeCH8-vista.pdf
Issues/water-issues/salinity-wq-toxins/salinity/1995wqcpb.pdf
Issues/water-issues/salinity-wq-toxins/salinity/(3)TechnicalMemo3.pdf
Issues/water-issues/salinity-wq-toxins/salinity/04-WaterQuality.pdf
Issues/water-issues/salinity-wq-toxins/salinity/1.30.09_BDCP_IT-ND_Diversion_Effects_Presendation.pdf
2000_delta_and_bay_studies.docx
Issues/water-issues/salinity-wq-toxins/salinity/2008_report_final.pdf
Issues/water-issues/salinity-wq-toxins/salinity/2008-5_Point_Plan.pdf
Issues/water-issues/salinity-wq-toxins/salinity/2010042101-FGC-Meeting-Results.pdf
7_29_10_State_Water_Board_Delta_Flow_Criteria_07292010_presentation.sflb.ashx
Issues/water-issues/salinity-wq-toxins/salinity/ca_salinity_standards-2010.pdf
EWC Position Paper
Issues/water-issues/salinity-wq-toxins/salinity/delta_drinking_water_quality.pdf
Issues/water-issues/salinity-wq-toxins/salinity/delta_overview.pdf
Issues/water-issues/salinity-wq-toxins/salinity/Delta_Standards.pdf

Issues/water-issues/salinity-wq-toxins/salinity/delta_drinking_water_quality.pdf

Issues/water-issues/salinity-wq-toxins/salinity/delta_overview.pdf
Issues/water-issues/salinity-wq-toxins/salinity/Delta_Standards.pdf
Issues/water-issues/salinity-wq-toxins/salinity/delta_water_quality_concerns-2007.pdf
Issues/water-issues/salinity-wq-toxins/salinity/delta_watershed_toxins.pdf
Issues/water-issues/salinity-wq-toxins/salinity/DeltaWQ2012.pdf
Issues/water-issues/salinity-wq-toxins/salinity/drinking_water_npdes_issue.pdf
Issues/water-issues/salinity-wq-toxins/salinity/DSM2_Recalibration_102709_doc.pdf
EC_chloride_bromide_05_29_01.pdf

































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Compiled by Delta citizens and Delta Voices Last Modified :01/15/14 04:34 PM Copyright 2009-2013 ,