5. RECEIVE
DISTRICT-WIDE ANNUAL WATER PRODUCTION SUMMARY REPORT FOR WATER YEAR 2002
Program/Line
Item No.: NA
Staff Contact: Joe Oliver/ Cost Estimate: NA
Tom
Lindberg
General Counsel Approval: NA
CEQA Compliance: NA
SUMMARY:
Staff has prepared a draft Water Production Summary Report of all
registered production sources within the District for Water Year 2002 (WY
2002). WY 2002 includes the period from
October 1, 2001 to September 30, 2002.
Preliminary computations indicate that 19,797 acre-feet of ground water
were produced from registered wells in the District during WY 2002. In addition, surface water diversions by the
California-American Water Company (Cal-Am) from San Clemente Reservoir totaled
176 acre-feet in WY 2002 and 68 acre-feet of surface water were diverted by
other users. Accordingly, the combined
production from surface and ground water sources within the District for WY 2002
is calculated to be 20,041 acre-feet. In
this report, comparisons of Cal-Am and non Cal-Am production in WY 2002 with
production in Reporting Year 2001 and with the current District water
allocation limits are presented.
RECOMMENDATION:
This report is for information purposes only. The Board should review the draft summary
report and provide staff with any comments or questions. Staff will complete the final report, incorporating
any late revisions, if this item is approved with the Consent Calendar.
BACKGROUND INFORMATION:
Well owners and operators are required to submit water production
information from all wells within the District annually. Well production for WY 2002 was computed by
either the Land Use or Water Meter reporting method and is described below.
Reporting Period - To increase consistency, convenience
and usefulness of the Well Reporting Program, the period of reporting was
changed from the Reporting Year (July 1 through June 30) to the Water Year
(October 1 through September 30) in October 2001. Consequently, this and subsequent Annual
Production Reports will be prepared on a Water Year basis.
Number of Wells - Presently, there are 948 registered
wells in the District. Of this total,
652 wells were active and 250 wells were inactive. Information on the remaining 46 registered
wells is not available because the owners have not returned reporting
forms. On the basis of reports received
in previous years, staff believes that at least seven of the
non-reporting wells were inactive in WY 2002, and at least six represent
permits for wells that had not been constructed as of September 30, 2002.
Data Adjustments - For certain wells, staff had to make
estimates of actual production to more accurately quantify water produced during
WY 2002. Data adjustments were required
to estimate the water production from 95 wells that either had incomplete water
meter records, or reported production for a period longer than WY 2002.
Production from metered wells with
incomplete records was estimated by using generalized, non-Cal-Am monthly
distribution factors developed by staff.
In 35 cases, production records were incomplete for the reporting period
because water meters were installed or repaired after the start of WY 2002, or
because the reported production was for a period shorter than WY 2002. By applying monthly distribution factors,
staff was able to reasonably estimate the percentage of production that was not
reported for each of these wells, which was then added to the annual total for
those wells.
For 60 cases in which production was
reported for a period longer than WY 2002, estimates of the amount of
over-reported production were made based on the monthly distribution
factors. These amounts were then deducted
from the reported totals. In seven
additional cases, production for wells with non-functioning water meters was
estimated based on historical records.
Of those seven, four meters have been repaired or replaced.
District-wide Production - Preliminary production values for WY
2002 are summarized by reporting method, reporting status, and source area in Exhibit 5-A.
For comparison, production values for RY 2001 are presented in Exhibit 5-B.
The aquifer subunits and source areas are shown in Exhibit 5-C.
The volume of water produced from various source areas within the
District in WY 2002 is shown in Exhibit 5-D. The number of active non-Cal-Am wells and the
volume of water produced by each reporting method for WY 2002 and RY 2001 are
compared in Exhibit 5-E.
District-wide, total water production increased by
1,314 acre-feet (seven percent) in WY 2002 compared to production in RY
2001. Specifically, ground water
withdrawals increased by 1,249 acre-feet (seven percent), while surface diversions
increased by 65 acre-feet (36 percent) during WY 2002. It should be noted that 68 acre-feet of non
Cal-Am surface water diversions were reported in WY 2002, an increase of 41
percent from RY 2001. Cal-Am surface
diversions from San Clemente Reservoir increased 45 acre-feet (34 percent).
Within the Monterey Peninsula Water
Resources System (MPWRS)
- The MPWRS includes the Carmel River and its tributaries, the Carmel Valley
alluvial aquifer, and the coastal subareas of the Seaside Basin. Overall water production within the MPWRS in
WY 2002 increased by 640 acre-feet (four percent) compared to RY 2001. Specifically, Cal-Am production in WY 2002
increased 473 acre-feet (three percent), while non-Cal-Am production increased
by 167 acre-feet (six percent) compared to the previous year. Cal-Am production in Carmel Valley increased
258 acre-feet (two percent), and Cal-Am production from the coastal subareas of
the Seaside Basin increased 215 acre-feet (seven percent). Non-Cal-Am production
from Carmel Valley increased by 203 acre-feet (ten percent) compared to the
previous reporting period, and non-Cal-Am production from the coastal subareas
of the Seaside Basin decreased 36 acre-feet (four percent).
Water Allocation Program - With respect to the District's Water Allocation
Program limits, Cal-Am production from the MPWRS in WY 2002 was 14,611
acre-feet, or 3,030 acre-feet (17 percent) less than the Cal-Am production
limit of 17,641 acre-feet that was established with the adoption of Ordinance
No. 87 in 1997. Non-Cal-Am production
within the MPWRS in WY 2002 was 3,216 acre-feet, or 170 acre-feet (six percent)
more than the non Cal-Am production limit of 3,046 acre-feet established by
Ordinance No. 87. Although non Cal-Am
production from within the MPWRS was above the established limit, the combined
production from both Cal-Am and non Cal-Am sources in WY 2002 was 17,827
acre-feet, which is 2,860 acre-feet (14 percent) less than the 20,687 acre-feet
production limit set for the MPWRS. A comparison
of reported water production from within the MPWRS in WY 2002 relative to the
Water Allocation Program limits is shown in Exhibit
5-F.
Lastly, it should be noted that 99
percent of the ground water production within the District was reported by the
water meter method in WY 2002. In
addition, 95 percent of the registered well owners in the District reported
their water production in WY 2002.
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