WATER SUPPLY PLANNING
COMMITTEE |
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DISCUSSION ITEM |
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2. |
UPDATE ON STATUS OF
RYAN RANCH UNIT OF CALIFORNIA AMERICAN WATER AND USE OF EMERGENCY INTERTIE
BETWEEN THE BISHOP AND RYAN RANCH UNITS |
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Meeting Date: |
July 9, 2019 |
Budgeted: |
N/A |
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From: |
David J. Stoldt |
Program/ |
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General Manager |
Line Item No.: |
N/A |
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Prepared By: |
David J. Stoldt |
Cost Estimate: |
N/A |
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General Counsel Approval: N/A |
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Committee Recommendation: N/A |
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CEQA
Compliance: Action does not constitute
a project as defined by the California Environmental Quality Act Guidelines
section 15378. |
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SUMMARY:
California American Water (“Cal-Am”) has been relying on the emergency
intertie to the Bishop Unit (also a Cal-Am system) to supply water to Ryan
Ranch since February 2018. MPWMD has
encouraged Cal-Am to amend its Water Distribution System (“WDS”) permits to add
Bishop as a Source of Supply for Ryan Ranch.
However, before Cal-Am amends its permits, it sought to undertake a
rehabilitation of its Ryan Ranch Well to try to bring production back to
capacity. In April, Cal-Am indicated the
well was able to run at 90 gpm (gallons per minute) and that on a regular basis
they would seek to run it in the 60-70 gpm range, which equates to 45-55
AF/year. This causes the District
concern because (a) this is below the System Capacity limit of 72 AF/year set
by the District in its moratorium order in 2009, which was based on a firm
capacity of 101 gpm; (b) actual Ryan Ranch production for customer service has
averaged 57 AF/year the past five years, so additional well capacity is limited;
and (c) State Title 22 standards for public water systems with fewer than 1,000
service connections require an additional source of supply or an emergency
connection that can meet maximum day demand.
As of now, our view is this:
Thus, if the company does not want the District to
proceed with amending the company’s Ryan Ranch and Bishop WDS’s, Cal-Am must
provide a clearly articulated plan to serve the Ryan Ranch satellite – design,
permitting, construction, operation with a detailed schedule – as well as a
description of how CEQA will be satisfied and how the requirements of the CDO
will be satisfied in the process.
It is expected that Cal-Am will have a plan that
will be made available to the District before the Water Supply Planning
Committee meeting and presented to the Committee at its July 9th
meeting.
RECOMMENDATION: Receive the Cal-Am information, discuss, and
provide general direction to staff on next steps.
BACKGROUND: In November 1989, the District approved the
annexation of the Ryan Ranch WDS into the Cal-Am Service Area, to be operated
as a separate unit of the Cal-Am system.
The Production Limit was set at 175 Acre-Feet Annually (“AFA”) based on
production from five operating Wells.
The permit also allowed an emergency intertie between the California
American Water Main System and the Ryan Ranch Unit.
By Fall 2008, there had been repeated use of the
emergency intertie and only two Wells were in service with a combined capacity
of 101 gallons per minute (“gpm”), equivalent to 72 AFA. In September 2008, the District’s General
Manager formally advised Cal-Am that the Ryan Ranch water supplies were insufficient,
which triggered a series of MPWMD public hearings. These efforts culminated in June 15, 2009,
Board action that adopted Findings,
Conclusions and Decision of the Board, Hearing on Insufficient Physical
Supplies in Accord with District Rule 40-B and reduced the production limit
to 72 AFA. Because the 2007 production
was 82 AFA, a moratorium on new Connections was imposed. The MPWMD Board directed that no Water Permit
applications for Intensifications in Use be received until CAW “develops additional
Well capacity to sustain a higher System Capacity and has its System Capacity
modified” in a future public hearing. A
June 12, 2009, pre-application for the proposed merger of the Ryan Ranch and
Bishop Units was later withdrawn after the District provided guidance on
required information and action.
CAW has funded hydrogeologic studies and test Well
explorations in Ryan Ranch, but no new supplies have been developed to
date. The moratorium persists with the
exception that certain facilities have been built using water right transfers
from private parties in the Seaside Basin, as approved by the Seaside Basin
Watermaster and MPWMD (e.g., Montage’s recently built Ryan Ranch
building). For reference, total Ryan
Ranch water production (Ryan Ranch Wells plus emergency intertie) for the
five-year period WY 2014-2018 averaged 57.034 AF.
In June 2015, the District approved WDS Permit
#M15-03-L3 for an emergency intertie pipeline from the Bishop Unit to serve the
Ryan Ranch Unit due to a decade of use of the emergency intertie from the Main
Cal-Am System. Water from the Bishop
Unit for emergency supply to Ryan Ranch was viewed as preferable to the Main
Cal-Am System given the SWRCB Cease and Desist Order (“CDO”). The Permit #M15-03-L3 Conditions of Approval
prohibited use of the main CAW system for emergency use unless written
permission was obtained from MPWMD.
Since 2015, the Ryan Ranch Unit has not been able to
sustainably supply its service area, and the emergency supply from Bishop was
used each year. Since March 2018 through
earlier this year, the Bishop Wells have been the sole source of supply for the
Ryan Ranch area, reflecting a failure of the Ryan Ranch Unit WDS. Condition #13 of Permit #M15-03-L3, requires
Board review if the intertie is used more than 60 days, however the General
Manager directed that Board review be postponed to allow the refurbished
Well(s) to be tested for capacity. That
testing is now complete.
EXHIBIT
2-A Background on Ryan Ranch and Bishop
Systems
U:\staff\Board_Committees\WSP\2019\20190709\02\Item-2.docx