DROUGHT RECOVERY POLICY (DRP)
Inyo County/Los Angeles Standing Committee
"Recognizing the experimental nature of the management and mitigation techniques, and
under the severe conditions of the current drought, it has been agreed by LADWP and Inyo
County to conservatively manage groundwater pumping during this drought and during a
period of recovery following the drought, LADWP and Inyo County have agreed that the
following policy will govern future groundwater pumping:
Recognizing the current extended drought, the Standing Committee establishes a policy for
annual management of groundwater pumping during this drought. The goal of this policy is
that soil water within the rooting zone recover to a degree sufficient so that the
vegetation protection goals of the Agreement are achieved. To this end, groundwater
pumping during this drought, as well as the period of recovery, will be conducted in an
environmentally conservative manner, taking into consideration soil water, water table,
and vegetation conditions. It is recognized that soil water in the rooting zone is
naturally replenished by precipitation and from the water table. Further, soil water,
water tables, and vegetation conditions will be monitored by the Technical Group to ensure
that the goal of this policy is being achieved and for purposes of evaluating the
effectiveness of the existing well turn-off/turn-on provisions.
This policy is to provide guidance to the Standing Committee for establishing annual
pumping programs during the current drought as well as during a period of recovery. It is
intended that groundwater pumping will continue to be conducted in an environmentally
conservative manner as was done during the 1990-91 and 1991-92 runoff years until there
has been a substantial recovery in soil moisture and water table conditions in areas of
Types B, C, and D vegetation that have been affected by groundwater pumping. The Standing
Committee will establish annual pumping programs based on an evaluation of current
conditions, including soil moisture level, water table depth, degree of water table
recovery, soil type, vegetation conditions, the results of studies pertaining to
vegetation recovery, and compliance with the goals of the Agreement. It is probable that
this policy will result in reduced annual pumping programs as compared to annual pumping
programs based solely on soil moisture conditions." (p 2-28 & 2-29 City of Los
Angeles and County of Inyo 1991)
The preamble and first paragraph of the DRP were
adopted by the Standing Committee and
included in the Draft EIR to the LTWA in 1990. In
response to a comment that the DRP needed to be "strengthened to
cause recovery of soil moisture to the estimated needs of the vegetation
at the time it was inventoried between 1984 and 1987,"
(p 2-28 City of Los Angeles and County of Inyo 1991)
the Standing Committee added the second paragraph to the DRP in the Final
EIR of 1991.
Literature cited