11-Lake Pat Mayse Study Comm. recommendationsCITY COUNCIL AGENDA ITEM BRIEFING SHEET
Submittal Date:
Originating Department:
Presented By:
Agenda Item No.:
7-6-09
Engineering, Planning &
Shawn Napier, P.E. Director of
Council Date:
Development
Engineering, Planning &
11.
7-13-09
Develo ment
RECOMMENDED MOTION:
Not an action item.
POLICY ISSUE(S):
Water resource management; Council committee recommendation
BACKGROUND:
The Lake Pat Mayse Study Committee has completed its work and the final committee
recommendations are attached. Also attached is the list of recommendations that the
committee started with before they settled on the final recommendation.
BOARD/COMMISSION RECOMMENDATION:
Attached
EXHIBITS:
Lake Pat Mayse Study Committee Final Report, list of recommendations
ACTION:
BUDGET INFO:
❑ Financial Report ❑ Minute Order
Expense
$
❑ Department Report ❑ Resolution
Budgeted Amt.
$
Z Presentation ❑ Ordinance
yTD Actual
$
❑ Public Hearing ❑ Other
Acct. Name
Acct. Number
FISCAL NOTES:
REVIEWED AND APPROVED BY:
Z Administration Z Ciry Clerk ❑ Community Development ❑ EMS/IT ❑ Finance ❑ Fire
❑ Municipal Court ❑ Legal ❑ Library ❑ Police Z Eng./Public Works ❑ Utilities
City of Paris 40-" 000Q35 Revised 2/04/08
PAT MAYSE WATER STUDY COMMITTEE
Draft of Potential Recommendations
June 25, 2009
We recommend that the City Council:
Provide the Committee's work so far to the City of Irving, and allow them to develop
their own proposal based upon the information therein. Ask for more specificity in the
proposal regarding pricing, interest in interruptible flows, and relationship of the Hugo
contract to Paris; or
2. Terminate negotiations and do nothing further because there is not enough water
available. The City of Irving has suggested a minimum need of 20-25 MGD. Our studies
show that the City's available surplus is 12.8 MGD at present, decreasing to 72 MGD by
2060 based on current contracts; or
3. Recommend to the City Council that there is some surplus water for sale under certain
conditions. Those conditions are that for the years through 2020, a minimum of 12.8
MGD; the years through 2040, 8.6 MGD; and years through 2060, 7.2 MGD. These
amounts would be available for sale to an outside entity on a firm basis. In addition an
interruptible supply can be offered to an outside entity that most likely will satisfy up to a
25 MGD requirement in most years, subject to first satisfying existing and future Lamar
county customer's needs and subject to discontinuing the delivery of water under such
contract when the lake level reaches elevation 448. The above recommendations are to
pursue a combined limited firm supply of water supplemented with an interruptible
supply. Elevation 448 was selected to protect current recreational access to the lake.
4. Offer an interruptible supply. Make water available to the outside entity only when the
lake is above elevation 448.
5. Initiate discussions with existing contract customers to determine if there are mutually
beneficial terms under which contracted amounts of water could be modified to reflect a
maximum annual volume as well as a peak day use, thus freeing up additional water. For
example if all contracts were modified to include a maximum annual volume of 125% of
the maximum current historical usage, this would free up 15.2 MGD. If added to the
uncommitted 8.6 million gallons in 2040, this would meet the City of Irving's
requirement.
6. Recapture the effluent from its wastewater treatment plant, and from Campbell Soup, by
constructing the Consultant's suggested diversion structure at Hicks Creek, and diverting
this water back to Lake Crook. Operate Lake Crook and Pat Mayse as a system with
water from Lake Crook being the first water sold to an outside entity. Use the existing
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'~M 000036
pipelines from Pat Mayse to the water treatment plant to carry additional water supply
from Pat Mayse to Lake Crook as needed. System operation plus use of return flows
would increase firm yield about 12 MGD.
7. Provide local sponsorship, possibly in conjunction with other interested entities for a
Corps of Engineers study to determine the viability of reallocation of Pat Mayse flood
control storage to water supply storage.
8. Pursue the Consultant's return flow Scenario B by constructing a diversion structure on
Pine Creek near the Red River, catching all return flows from Pine Creek through that
point and selling it to the outside contracting entity.
9. Apply to amend the City's water rights permit to allow a peak day taking of up to three
times the annual authorized 55 MGD if the City agrees to sell water to an outside entity.
.6 O6U03 %
PAT MAYSE WATER STUDY COMMITTEE
Recommendations
June 25, 2009
We recommend that the City Council:
1. Offer an interruptible supply. Make water available to the outside entity only when the
lake is above elevation 448. Elevation 448 was selected to protect current recreational
access to the lake.
2. Apply to amend the City's water rights permit to allow a peak day taking of up to three
times the annual authorized 55 MGD if the City agrees to sell water to an outside entity.
3. If the Council desires to increase the amount of water available the following options
could be considered:
• Initiate discussions with existing contract customers to determine if there are mutually
beneficial terms under which contracted amounts of water could be modified to reflect a
maximum annual volume as well as a peak day use, thus freeing up additional water. For
example if all contracts were modified to include a maximum annual volume of 125% of
the maximum current historical usage, this would free up 15.2 MGD. If added to the
uncommitted 8.6 million gallons in 2040, this would meet the City of Irving's
requirement.
• Recapture the effluent from its wastewater treatment plant, and from Campbell Soup, by
constructing the Consultant's suggested diversion structure at Hicks Creek, and diverting
this water back to Lake Crook. Operate Lake Crook and Pat Mayse as a system with
water from Lake Crook being the first water sold to an outside entity. Use the existing
pipelines from Pat Mayse to the water treatment plant to carry additional water supply
from Pat Mayse to Lake Crook as needed. System operation plus use of return flows
would increase firm yield about 12 MGD.
• Provide local sponsorship, possibly in conjunction with other interested entities for a
Corps of Engineers study to determine the viability of reallocation of Pat Mayse flood
control storage to water supply storage.
• Pursue the Consultant's return flow Scenario B by constructing a diversion structure on
Pine Creek near the Red River, catching all return flows from Pine Creek through that
point and selling it to the outside contracting entity.
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