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O&M Pump-In Project Monitoring

DWR accepts the introduction of local groundwater into the State Water Project (SWP) through a series of Pump-In Projects. These projects operate in accordance with California Water Code which states that non-project water may be conveyed, wheeled, or transferred in the SWP provided that water quality is protected. The acceptance of turn-in water is through established agreements with DWR's State Water Project Analysis Office (SWPAO). These agreements between SWPAO and pump-in entities include water quality criteria among other aspects. These water quality criteria dictate that a pump-in entity of any non-project water program must demonstrate that the water is of consistent, predictable, and acceptable quality prior to pumping the local groundwater into the SWP. Since there cannot be any adverse impacts to SWP water deliveries, operations or facilities, the water quality criteria cannot constrain DWR's ability to operate the SWP for its intended purposes or to protect its integrity during emergencies.

The pump-in volumes and water quality are monitored regularly when the following pump-in entities are introducing local groundwater into the SWP:

  • Westlands Water District (WWD)
  • San Luis Water District
  • Semitropic Water Storage District
  • Cross Valley Canal (Rev)
  • Kern Water Bank Canal (Rev)
  • Buena Vista Water Storage District
  • Arvin-Edison Water Storage District
  • Wheeler Ridge-Maricopa Water Storage District

2011 Turn-in Volumes into the California Aqueduct in acre-feet (AF)

  • January: 6
  • February: 2,638
  • March: 103
  • April: 7,905
  • May: 48,742
  • June: 10,762
  • July: 19

2012 Turn-in Volumes into the California Aqueduct in acre-feet (AF)

  • January: 0
  • February: 0
  • March: 38,710
  • April: 39,296
  • May: 22,475
  • June: 18,854
  • July: 0
  • August: 0
  • September: 0
  • October: 0
  • November: 0
  • December: 14,390

2013 Turn-in Volumes into the California Aqueduct in acre-feet (AF)

  • January: 18,835
  • February: 28,132
  • March: 34,191
  • April: 32,702
  • May: 22,505
  • June: 17,980
  • July: 17,417
  • August: 17,683
  • September: 6,677
  • October: 28,377
  • November: 50,130
  • December: 62,228

2014 Turn-in Volumes into the California Aqueduct in acre-feet (AF)

  • January: 43,134
  • February: 42,786
  • March: 48,522
  • April: 43,541
  • May: 38,925
  • June: 29,216
  • July: 28,311
  • August: 33,935
  • September: 42,091
  • October: 56,258
  • November: 57,710
  • December: 53,633

2015 Turn-in Volumes into the California Aqueduct in acre-feet (AF)

  • January: 39,992
  • February: 43,101
  • March: 40,960
  • April: 34,895
  • May: 32,145
  • June: 21,786
  • July: 26,586
  • August: 35,872
  • September: 45,869
  • October: 48,864
  • November: 55,666
  • December: 57,090

2016 Turn-in Volumes into the California Aqueduct in acre-feet (AF)

  • January: 16,481
  • February: 9,852
  • March: 40,835
  • April: 56,034
  • May: 13,034
  • June: 5,228
  • July: 10,365
  • August: 21,264
  • September: 17,455
  • October: 4,380
  • November: 3,727
  • December: 1,324

DWR Publications

DWR Water Quality Summary 2008 WWD SWP Pump-In Project.

Water Quality Assessment of Non-Project Turn-ins to the California Aqueduct, 2012

Water Quality Assessment of Non-Project Turn-ins to the California Aqueduct, 2013

Water Quality Assessment of Non-Project Turn-ins to the California Aqueduct, 2014

Water Quality Assessment of Non-Project Turn-ins to the California Aqueduct, 2015

For other parameters or other reports, Contact Us.

Other O&M water quality reports may be found on the DWR Publicatons web page using the link to "Publications & Video Repository." Choose the "State Water Project" topic and then choose the "Water Quality" topic for a listing of publications.