Groundwater Ambient Monitoring and Assessment Program

Land Subsidence in the San Joaquin Valley, CA

The Groundwater Ambient Monitoring and Assessment Program (GAMA) is an all-inclusive monitoring program for groundwater that was implemented in 2000 in California, United States. It was created by the California State Water Resources Control Board as an improvement from groundwater programs that were already in place. GAMA monitors various aspects in groundwater such as the water quality and allotment total through research projects conducted by multiple agencies both statewide and locally sourced. GAMA wants to improve public awareness for groundwater resources as well as improve monitoring on groundwater research across the state to assess potential hazards from this resource.[1]

California groundwater

Approximately 85% of water used in California by farmers and residents today is from groundwater, with 6 million Californians relying solely on this resource.[2] The Central Valley is a big user of groundwater for agricultural purposes which supplies a large portion of food for not only California, but for the rest of the United States as well.[3] This resource for a long time had been unregulated which helps us understand the groundwater crisis that occurs today in California. This was a highly relied upon resource over the past century, and was especially critical during drought periods. When there was less snow pack and less precipitation, people relied heavily on groundwater.[2] Over time, issues have arose like land subsidence which occurs from pumping groundwater out faster than it can naturally replenish underground.[4] This is one reason among many others for why GAMA was proposed.

Research projects

Unconfined aquifer referring to a shallow aquifer. Confined aquifer referring to a deep aquifer.

Since GAMA has been implemented, there have been a few projects that GAMA aims to achieve to better understand California's groundwater systems.

Priority Basin Project

Begun in 2002 to help better understand risks imposed on California groundwater, this project looks at both deep and shallow aquifers. Deep groundwater for this project looks at how this water is used for the public use. Shallow aquifers address more local water uses such as wells. By tracking both of these aquifers, officials hope to be able to better understand impacts on groundwater, to provide more information to consumers.[1]

GeoTracker GAMA

This is a system that integrates reported data from all of Californias groundwater systems from both the Priority Basin Project and the Domestic Well Project. This information goes through analytical processes to later be uploaded onto a comprehensive statewide map. This monitoring method allows all agencies access to a comprehensive site where data is available for users to see if there is a potential contaminant that is above safety levels.[5]

Domestic Well Project

This project took samples from domestic wells and analyzed the water quality for commonly occurring chemicals. This gave well owners information regarding the quality of their water, which also acted as a baseline for other wells in the area. This information was entered into the GeoTracker GAMA project data. There has been a main focus on six counties which include Tehama, Monterey, Yuba, El Dorado, Tulare, and San Diego counties. Over one thousand wells collectively between all counties have been sampled so far. Chemicals tested include Nitrates, Perchlorate, Sulfate, Chloride, Coliform, Volatile Organic Compounds, Aluminum, Arsenic, Cadmium, Chromium, Iron, Lead, Manganese, Thallium, Vanadium, Zinc, Radium, and Uranium. Most owners received information by pamphlets sent by mail regarding the water quality of their well.[1]

Legislation

GAMA was built on current legislation which consists of six bills and one proposition.

AB 599: Groundwater Quality Monitoring Act

Took affect in 2001 shortly after GAMA was implemented. Legislature stated that it's a necessity that groundwater should continue to be monitored to make sure the groundwater system is safe. More information to the public needs to be improved upon, and more information needs to be conducted to better understand how to restore depleted groundwater systems. A comprehensive program among agencies would need to be implemented across the state to ensure adequate monitoring measures.[6]

California State Capitol. California citizens vote prop 50 (Water Scarcity, Clean Drinking Water, Coastal and Beach Protection Act)

Prop 50: Water Scarcity, Clean Drinking Water, Coastal and Beach Protection Act

Passed in November 2002. This Act was granted approximately $380 million for IRWM plans and projects.[7] Voters approved this act which would help with a number of issues such as groundwater replenishment plans, improved water quality, and improved water security.

AB1747: Bond Law for Proposition 50 Projects

States that rules from Proposition 50 must be in line with AB 599.[1]

AB 2222: Groundwater Information Accessibility and Identification of Communities Reliant on Contaminated Groundwater

This bill states that the state board extend AB 599 funding to 2024. Public opinion would be able to make recommendations and state opinions before new legislation would be enacted. Public accessibility would be improved upon as well regarding issues such as contaminated groundwater, and developing plans to assess the situation.[8]

SB X2 1: Nitrate Pilot Projects in Tulare Lake and Salinas Basins

Implemented in 2008 as a recovery program to understand why contamination can occur in groundwater and preventative measures. Tulare lake and Salinas basin will serve as a research zones. Agencies will find point sources of nitrates in groundwater, and reduce nitrate levels or prevent them entirely. Costs and funding methods must be interpreted for these zones. Adding an interagency task force to monitor and expand cleanup programs will be a necessity, and reports must be generated including all research conducted from Tulare Lake and the Salinas Basin.[9]

SB1938: Monitoring Components for Groundwater Managing Plans

A local agency can come up with a new plan for groundwater management based on prior groundwater laws. SB 1938 declared that groundwater must be protected and adequately managed, especially during dry years where groundwater use increases. This bill continues to declare that groundwater systems are not well understood which complicates future planning, and that agencies need to communicate with each other to effectively manage a monitoring system fo this resource.[10]

SB 4: Oil and Gas: Well Stimulation

Implemented in 2013. Well Stimulation Treatments would need an all-inclusive program to monitor these actions. Part of this bill enacted research on well stimulation treatments which owners or well operators would be required to have recorded data on these sites. Permits would be required to perform any well stimulation treatments as well as frequent inspections. Fines will be issued if violations occur. This program must be implemented starting in July, 2015.[11]

References

  1. 1 2 3 4 California, State of. "State Water Resources Control Board". www.waterboards.ca.gov. Retrieved 2018-04-20.
  2. 1 2 "Understanding California's Groundwater | Water in the West". waterinthewest.stanford.edu. Retrieved 2018-04-20.
  3. ↑ "Groundwater in California - Public Policy Institute of California". Public Policy Institute of California. Retrieved 2018-04-20.
  4. ↑ Sustainable water : challenges and solutions from California. Lassiter, Allison, 1980- (First ed.). Oakland, California. ISBN 9780520285354. OCLC 910237645.
  5. ↑ California, State of. "GeoTracker". geotracker.waterboards.ca.gov. Retrieved 2018-04-20.
  6. ↑ "Bill Text - AB-599 Groundwater contamination: quality monitoring program". leginfo.legislature.ca.gov. Retrieved 2018-04-20.
  7. ↑ "IRWM: Propositions 50, 84 & 1 : North Coast Resource Partnership". www.northcoastresourcepartnership.org. Retrieved 2018-04-20.
  8. ↑ "Bill Number AB 2222". leginfo.public.ca.gov.
  9. ↑ "Water Code Section 83002.5 was added by SBX2 1 Chaptered September 30, 2008" (PDF). UC Davis.
  10. ↑ "Bill Text - SB-1938 Groundwater management: state funding". leginfo.legislature.ca.gov. Retrieved 2018-04-20.
  11. ↑ "Bill Text - SB-4 Oil and gas: well stimulation". leginfo.legislature.ca.gov. Retrieved 2018-04-20.
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