ITEM:		CONSENT CALENDAR
6.	RECEIVE AND FILE DISTRICT-WIDE ANNUAL WATER PRODUCTION SUMMARY REPORT FOR WATER YEAR 2011
Meeting Date:			April 16, 2012	Budgeted:	N/A
From:			David Stoldt,	Program/	Hydrologic Monitoring
			General Manager	Line Item No.: N/A
Prepared By:			Thomas Lindberg	Cost Estimate:	N/A
General Counsel Review: N/A
Committee Recommendation: N/A
CEQA Compliance: N/A

SUMMARY: Staff has prepared a draft Water Production Summary Report of all registered production sources, i.e., wells and surface water diversions, within the Monterey Peninsula Water Management District (District) for Water Year (WY) 2011. WY 2011 covers the 12-month period from October 1, 2010 through September 30, 2011. Preliminary computations indicate that 16,184 acre-feet (AF) of groundwater were produced from registered wells in the District during WY 2011 (Exhibit 6-A). In addition, three AF of surface water were diverted by private users. Combined surface and groundwater production from all sources within the District in WY 2011 is calculated at 16,187 AF. This report presents comparisons of California American Water (Cal-Am) and non Cal-Am production in WY 2011 and WY 2010, and compares WY 2011 production with the District’s current water allocation program limits.

RECOMMENDATION: This report is for informational purposes only. The Board should review the draft summary report and provide staff with any comments or questions. Staff will complete and file the final report, incorporating any late revisions, if this item is approved with the Consent Calendar.

BACKGROUND: District Rules and Regulations require well owners and operators to submit annual water production information to the District. Well production is calculated by either the Land Use or Water Meter reporting method and is described below.

Number of Wells – Presently, there are 1,189 registered wells in the District. Of this total, 743 wells are active, and 357 wells are inactive. A well is considered active if it has produced any water in the last reporting period, i.e., WY 2011. Information on the remaining 89 registered wells is not available because reporting forms were not returned by owners of those wells prior to preparation of this report.

Data Adjustments – For certain wells, staff estimated actual production to more accurately quantify water produced during WY 2011. Data adjustments were required to estimate water production from 93 wells that had either incomplete water meter records or reported water production for a period longer than the water year. Production from metered wells with incomplete records was estimated by using generalized non Cal-Am monthly distribution factors developed by staff. In 49 cases, production records were incomplete because reported meter readings covered a period shorter than WY 2011. In 25 other cases, production records were incomplete because meters were replaced or repaired after the start of WY 2011. The application of monthly distribution factors allowed staff to reasonably account for the percentage of production that was not reported for each of these wells, which was then added to the annual total for these wells. There were 44 cases in which production was reported for a period longer than WY 2011. Estimates of the amounts that were over-reported were made based on the monthly distribution factors. These amounts were then subtracted from the reported totals. There were also 40 cases where adjustments were made due to “order of magnitude issues” resulting from well owners incorrectly reading their water meters. In 20 cases, production from wells with non-functioning water meters during WY 2011 was estimated based on historical production reports for these wells.

District-wide Production - Preliminary production values for WY 2011 are summarized by reporting method (i.e., Water Meter or Land Use), reporting status (i.e., active, inactive, or not reporting), and source area in Exhibit 6-A. For comparison, production values for WY 2010 are presented in Exhibit 6-B. The various source areas are shown in Exhibit 6-C. The volume of water produced from each source area is shown in Exhibit 6-D. The number of active non Cal-Am wells and the volume of water produced by each reporting method in WY 2011 and WY 2010 are compared in Exhibit 6-E.

District-wide, total water production decreased by 313 AF (2%) in WY 2011 compared to WY 2010. Specifically, groundwater withdrawals decreased by 309 AF (2%), and surface diversions decreased by four AF (52%) in WY 2011. No surface water has been diverted within the Cal-Am main system since WY 2003 because of seismic safety and sedimentation concerns at San Clemente Dam and Reservoir. WY 2004 marked the first year since 1921, when San Clemente Dam was completed, that Cal-Am or its predecessor did not divert surface water from San Clemente Reservoir.

Monterey Peninsula Water Resources System (MPWRS) – The MPWRS includes surface water in the Carmel River and its tributaries, and groundwater in the Carmel Valley alluvial aquifer and coastal subareas of the Seaside Groundwater Basin. Overall water production within the MPWRS in WY 2011 decreased by 537 AF (1.5%) compared to WY 2010. Specifically, Cal-Am production in WY 2011 decreased by 187 AF (1.5%), and non Cal-Am well production decreased by 349 AF (11.6%) relative to reported production in WY 2010. Cal-Am production from Carmel Valley decreased 1,227 AF (12.7%), and Cal-Am production from the coastal areas of the Seaside Basin increased by 816 AF (22.0%). Non Cal-Am production from Carmel Valley decreased by 220 AF (8.4%) compared to WY 2010, and non Cal-Am production from the coastal areas of the Seaside Basin decreased by 133 AF (33.2%). In WY 2011, 16.3 AF was subtracted from Cal-Am production and added to Non Cal-Am production to account for water transferred to the City of Seaside Municipal Water System. Also, 275.7 AF of potable water that was produced by the City of Sand City Desalination Plant was added to Cal-Am production because it was delivered to the Cal-Am main system.

Of the 8,449 AF of Cal-Am production from Carmel Valley, 1,117 AF were produced and delivered to the District’s Water Project No. 1, consisting of two Aquifer Storage and Recovery Wells in the Seaside Basin. 51 AF of water from Water Project No. 1 was produced for delivery to Cal-Am in WY 2011 and was included in the Cal-Am production total. For reference, since the District’s Seaside Injection/Recovery Program began testing in WY 1998 through the end of WY 2011, a total of 4,346 AF have been injected into the Seaside Basin.

Water Allocation Program – With respect to the District’s Water Allocation Program limits, Cal-Am production from the MPWRS in WY 2011 was 12,247 AF, or 5,394 AF (30.6%) less than the Cal-Am production limit of 17,641 AF that was established with the adoption of Ordinance No. 87 in 1997. Non Cal-Am production within the MPWRS in WY 2011 was 2,674 AF, or 372 AF (12.2%) less than the non Cal-Am production limit of 3,046 AF established by Ordinance No. 87. Combined production from Cal-Am and non Cal-Am sources within the MPWRS was 14,921 AF in WY 2011, which is 5,766 acre-feet (27.9%) less than the 20,687 acre-feet production limit set for the MPWRS as part of the District’s Water Allocation Program. Therefore, no action is necessary at this time, although staff will continue to monitor production trends within the MPWRS and District-wide. A comparison of reported water production from the MPWRS in WY 2011 relative to the District’s Water Allocation limits is presented in Exhibit 6-F.

The comparisons above do not include production from wells that derive their source of supply from the Laguna Seca Subarea (LSS) of the Seaside Groundwater Basin, which was outside the MPWRS as defined during most of WY 2008 but was added to the MPWRS with the adoption of Ordinance No. 135 on September 22, 2008. Because the LSS was added to the MPWRS late in WY 2008, another set of comparisons is presented below that includes production from the LSS. When the LSS is included in calculating production from the MPWRS, the comparisons of WY 2011 to WY 2010 are as follows. Total water production within the MPWRS (including LSS) decreased by 540 AF (3.5%) in WY 2011 compared to production in WY 2010. In WY 2011, production by Cal-Am from within the MPWRS (including LSS) decreased by 187 AF (1.5%) and non Cal-Am production from within the MPWRS (including LSS) decreased by 353 AF (11.6%) relative to production reported for WY 2010.

Lastly, it should be noted that 99% of the groundwater production within the District was reported by the water meter method in WY 2011. In addition, over 90% of registered well owners in the District reported annual production for their wells in WY 2011.

EXHIBITS

6-A District-wide Water Production Summary for Water Year 2011

6-B District-wide Water Production Summary for Water Year 2010

6-C MPWMD Water Production Source Areas

6-D Water Production by Source Area for Water Year 2011

6-E District-wide Production by Reporting Method for non Cal-Am Wells in WY 2011 and WY 2010

6-F Comparison of Reported Production to Production Limits within the MPWRS in

WY 2011

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