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ITEM: |
CONSENT
CALENDAR |
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6. |
RECEIVE AND FILE
DISTRICT-WIDE ANNUAL WATER DISTRIBUTION SYSTEM PRODUCTION SUMMARY REPORT FOR
WATER YEAR 2010 |
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Meeting
Date: |
April 18, 2011 |
Budgeted: |
N/A |
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From: |
Darby
Fuerst, |
Program/ |
Hydrologic Monitoring |
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General Manager |
Line Item No.: |
N/A |
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Prepared
By: |
Thomas
Lindberg |
Cost Estimate: |
N/A |
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General Counsel Review: N/A |
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Committee Recommendation: N/A |
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CEQA Compliance: N/A |
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SUMMARY: Staff has prepared the draft Water Production Summary Report
for Water Distribution Systems (WDSs) within the Monterey Peninsula Water
Management District (District) for Water Year (WY) 2010. WY 2010 covers the 12-month period from
October 1, 2009 through September 30, 2010.
Preliminary computations indicate that 13,219 acre-feet (AF) of water
were produced by the 107 recognized WDSs in the District during WY 2010. In general, recognized WDSs refer to systems
that either: (a) have received a WDS permit, or (b) have been confirmed as a
pre-existing system prior to District rules that expanded WDS permitting
requirements. The
California American Water (Cal-Am) main system, which is the largest WDS in the
District, accounted for 12,004 AF, or approximately 91% of the total production
reported by WDSs in WY 2010.
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: All owners and operators of WDSs within the District are required to annually submit water production information to the District. In 1980, District Ordinance No. 1 defined a WDS as works within the District used for the collection, storage, transmission, or distribution of water from the source of supply to the connection of a system providing water service to any connection including all water-gathering facilities and water-measuring devices. Therefore, all wells within the District are considered to be WDSs. However, until the adoption of Ordinance No. 96 in 2001, only multiple-parcel WDSs were required to obtain a permit from the District. Other refinements to the Rules and Regulations governing WDSs were added with the adoption of Ordinance No. 105 in 2002; Ordinance No. 106 in 2003; Ordinance No. 118 in 2005; and Ordinance No. 122 in 2006.
Six new single-parcel WDSs (i.e., the Chopin, Frumkin, Guenther, D. Griggs, Sycamore Ranch and Trosky WDSs) and three new multiple-parcel WDSs (City of Sand City Desalination Plant, Monterey Bay Shores, and Ocean View Community Services District) were established in WY 2010. All of the potable water produced by the Sand City Desalination Plant was provided to the Cal-Am main system, and therefore, that amount (45.9 AF) is accounted for as Cal-Am main system production. It is also noted that in WY 2005, the Cañada Woods Alluvial, Cañada Woods Upland and Monterra Ranch WDSs were merged into the Cañada Woods Water Company WDS, although they are reported separately here to facilitate comparisons from one year to another.
Each WDS must report the amount of water produced and where required the amount of water delivered, in addition to the number of existing and new connections served during the reporting period. The information for WY 2010 is summarized in Exhibit 6-A. The WDSs shown are grouped by source area. This information is also incorporated into the District-Wide Water Production Summary Report, presented as Item 7 of the Consent Calendar of this packet. For comparative purposes, the Annual WDS Production Summary Report for WY 2009 is provided as Exhibit 6-B. Note that the version of the Annual WDS Production Summary Report for WY 2009 presented here has been revised since it was originally presented to the Board on May 17, 2010, based on information received since that time.
Production figures for three WDSs -- Bishop, Ryan Ranch, and Hidden Hills Units -- are reported separately from the Cal-Am main system, although Cal-Am owns and operates each of these satellite units. The Ryan Ranch Unit was acquired and annexed into the Cal-Am system in November 1989. The Hidden Hills Unit, which formerly reported as the Carmel Valley Mutual Water Company, was acquired and annexed into the Cal-Am system in 1993. The Bishop Unit, which has been operated by Cal-Am since September 1996, was acquired and annexed into the Cal-Am system in July 1999. Although water production and delivery values for the Bishop, Hidden Hills and Ryan Ranch Units are reported separately from the values for Cal-Am’s main system in this report, they are included in Cal-Am’s total production in the District-wide Production Summary Report (Exhibit 6-A) as “Cal-Am Wells Outside the Water Resources System”. In WY 2009, 123.57 AF of water were produced from wells in the former Water West WDS, which was acquired and annexed into the Cal-Am service area in 1989 and integrated into Cal-Am’s main system in 1993. Water delivered to the former Water West WDS is incorporated into Cal-Am's main system delivery total in this report and in Exhibit 6-A of the District-wide Production Summary Report. The former Rancho Fiesta WDS is also included as part of the Cal-Am main system, because all water delivered to customers within the former service area of this system was produced from sources that serve Cal-Am’s main system and the Rancho Fiesta production wells have been inactive for more than 10 years. For WY 2009 and WY 2010, all deliveries and connections to Rancho Fiesta customers were incorporated into totals for the Cal-Am main system.
The production shown in Exhibit 6-A for Monterra Ranch includes water produced from wells that was sent to the system’s reverse osmosis (RO) desalination plant and un-treated water that was produced for non-potable purposes. For WY 2010, the reported percentage of unaccounted water for Monterra Ranch represents a comparison of the amount of RO plant and brine production (54.34 + 13.84 AF) minus metered consumption and brine production (41.03 + 13.84 AF) divided by RO plant and brine production (54.34 + 13.84 AF). This percentage does not include the amount of non-potable water produced by wells that was not sent to the plant (26.11 AF).
District-wide - Total WDS production within the District for WY 2010 was 13,219 AF. Of this total, the Cal-Am main system (i.e., not including the Bishop, Hidden Hills and Ryan Ranch Units) accounted for 91% of the water produced by WDSs within the District. The other 107 systems (i.e., including the Bishop, Hidden Hills and Ryan Ranch Units) accounted for the remaining nine percent of production. Total WDS production for WY 2010 is 1,180 AF (8.2%) less than the production reported for WY 2009. During WY 2010, Cal-Am’s main system production decreased by 1,094 AF (8.4%), while reported non Cal-Am WDS production decreased by 85 AF (6.6%), relative to production in WY 2009.
The
comparisons above do not include production from Cal-Am’s satellite systems
(Bishop, Hidden Hills and Ryan Ranch Units) that derive their source of supply
from the Laguna Seca Subarea (LSS) of the
6-A Water Production Summary Report for Water Distribution Systems for Water Year 2010
6-B Water Production Summary Report for Water Distribution Systems for Water Year 2009
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