HomeMy WebLinkAbout3-4-04 Memo from Brad WatsonRE~EIVEI~
MAC 0 4 2001
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Memo
To: Mayor and City Council
From: Brad Watson, P.E
Ci: Fle, Gary Smith, PE, Bill Nichols, Dave Yorgason
Date: 314104
Re: Settlement Bridge Subdivision-AZ 03-035, PP 03-041, CUP 03-065
As directed by Mayor and Caunal at the February 24, 2004 Council meeting, staff met with
Capital Devebpment and their engineer on February 26 fn discuss water supply and well lot
acquisition issues. This memo addresses the water supply issue.
Re-Cap and Additional Information
• This project is located in the high-pressure zone. We ultimatety need two wells north
of Ustidc Road in this zone. See attached zone map.
• The City water system cannot meet the fire fkrvv requirements of this subdivision
without additional water supply. The applicants team has never asked, either orally
or in writing, for verification of this.
• A potential weU site in Westborough Subdivision, %a-mile south of Ghinden on the
west side ~ Locxast Grove Road has been secured (by lease with option to
purchase). Test driNing will commence in the next week or two.
• IF the water quality in the Westborough test well hams up satisfactory, production well
drilling and pump facilities constnaction will take t3 -10 months. We do not yet have
the water right approved by the Idaho Dept. of Water Resources (IDWR). Given the
nomral course of public advertisement by IDWR, our hydrogeobgical consultant does
not antiapate the protest period ending until April 19. If someone files a protest on
this water right, we obviously have no way of knowing trouv long it will take to have an
operational well.
• I cannot issue an approval letter for the subdivisron plans to the Department of
Environmental Quality (DEQ) for any phase nt this subdivision without addtonal
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water supply. That plan approval letter {sample copy attached) certifies that the City
can meet fire flow requiremerrts. However, if plans for additional water supply
acxompany the subdivision plans, I could likely issue an overall plan approval.
ANemata Water Supply
As I mentioned at the 2124104 hearing on this matter, staff is looking at alternative water
supply sources for the high-pressure zone. Councl approved an agreement with Civil Survey
Consultants at the 2/24/04 meeting to investigate and ultimately design a solution. Please
refer to Len Grad;rs 3/4/04 memo to me and Dave Yorgason's 3/3/04 letter th me for
additional details regarding this plan.
Recommendation
Modify Site Specific Comment No. 25 (PP 03-041) as fotlows:
Adequate water supply to meet fire protection requirements must be constructed,
ins~lled and operational prior to signature on the final plat.
How adequate water supply is provided boils down to two scenarios:
1. Additional well is operational in the high pressure zone. The City would fiilry
fund this construction.
2. Water suppN is routed from the low pressure zone Lb the hioh-pressure zone
by pipeline and pressure-reduarxr valve station(s). How this would be funded
is a question. We would not be proposing this re-routing as the system
stands today without additional devebpment in the north part of the hgh-
pressure zone.
If Council allows scenario #2 to proceed, we recommend that the City maintain control of the
design, plans, and construction of the improvemer~. If Councti dec~es that Capital
Development shoultl be responsible for these improvements, we recommend that it be a
financial responsibility only. If other projects in the high pressure zone north of Ustidc Road
benefit from this, we recommend that Capital Development be eligible for a latecomers
agreement
Fundirw
We currently have funds budgeted for the Jewett well (#2~ and the second well (#26 aka
#206) at the Ustidc Reservoir site. No funds exist for an additional well although we will
undoubtedly request funds for two more wells in FY'05.
About a month ago, we considered asking Council for a budget amendment to create enough
funds in a new Well #28 line item to allow us !b do two test wells under the same contract.
These would have been at the Westborough and Settlement Bridge sites. We felt there
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would be some savings by having the test well driller do two wells at the same time in dose
pro>amity to one another. Since we did not comA td an agreement on the Settlement Bridge
site by the time of the bid, we proceeded with fhe Westborough test well only.
Thank you for your consideration. I look forward to discussing this with you at the Coundl
meeting next week.
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