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ETGSA Land Subsidence Management Area (LSMA) Management Zone Tiers
LSMA Management Action Tier
Cumulative Land Subsidence
Requirement Management Actions (Groundwater Extraction Restrictions)
Tier 1
Between:
0 ft & 1.49 ft

No additional restrictions beyond the established Rules and Regulations for the ETGSA Greater Tule Management Area

Tier 2
Between:
1.50 ft & 1.99 ft

All actions in Tier 1 apply plus the following additional management actions:

  • Limit extractions within the Management Area to 60% of current year Tier 1 Penalty Allocation, allocated to lands within the Tier 2 Management Zone.
  • The remaining 40% of Tier 1 Penalty Allocation is available to be extracted or transferred outside of the
    Management Area, provided such use and transfer is otherwise consistent with the ETGSA Rules and Regulations.
  • Any wells implementing pumping of any water 600 ft below land surface will require a meter and reporting of the data monthly to the ETGSA staff, and subject to meter specifications as defined in the ETGSA Rules and Regulations.

Tier 3

Between:
2.00 ft & 2.49 ft

All actions in Tier 1 and Tier 2 apply plus the following additional management actions:

  • Limit extractions within the Management Area to 30% of current year Tier 1 Penalty Allocation, allocated to lands within the Tier 2 Management Zone.
  • The remaining 70% of Tier 1 Penalty Allocation is available to be extracted or transferred outside of the
    Management Area, provided such use and transfer is otherwise consistent with the ETGSA Rules and Regulations.
  • Any wells implementing pumping of any water 600 ft below land surface will require a meter and reporting of the data monthly to the ETGSA staff, and subject to meter specifications as defined in the ETGSA Rules and Regulations.
Tier 4
Between:
2.50 ft & 2.99 ft

All actions in Tiers 1 through Tier 3 apply plus the following additional management actions:

  • No extraction of Tier 1 Penalty Allocation within the Management Area.
  • Extraction of Tier 1 can occur in the Management Area if analyses and data are provided to demonstrate that it will not result in additional land subsidence.