1.b. Quotes for Test Drilling Contract for Well No. 8.MEMORANDUM
CHANHASSEN
CITY OF 16
690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317
(612) 937 -1900 • FAX (612) 937 -5739
TO: Don Ashworth, City Manager
FROM: Charles Folch, Director of Public Work
DATE: July 23, 1997
ft" of W AA1fA115""
DeN�
DO Submitted to CommissbR
We Submitted to CooWl
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SUBJ: Approve Quotes for Test Drilling Contract for Well No. 8 - Project No. 97 -4 -1
Attached you will find quotes received to conduct the test drilling for a possible site for Well No.
8. As indicated in the attached letter from Bonestroo dated July 17 the test site is anticipated to
be in an adequate location for a Jordan aquifer, 500 -foot depth well; however, there is the
possibility that. the test drilling may need to extend down additional depths into the Franconia-
Ironton- Galesville (FIG) aquifer (depth of approximately 740 feet). The low quote was received
from E. H. Renner in the amount of $8,350 for testing drilling to the Jordan depth and $12,150 to
test drill to the FIG depth. In a worst -case scenario in terms of depth of test drilling, the project
costs could total approximately $12,150 for the test drilling plus an additional $500 to $1,000
needed for clearing an access to a test drilling site and approximately $1,800 to televise and log
the test hole. The 1997 City Budget Fund 710 Utility Expansion included dollars for the test
drilling and design of Well No. 8. The low quote for the test drilling is well within the budgetary
allocation.
It is therefore recommended that the City Council approve the test drilling quote for Well No. 8
submitted by E. H. Renner based on the unit prices totaling an amount of approximately $12,150
plus up to an additional $3,000 for clearing an access to the site and conducting a final television
inspection and gamma log of the test hole, Project No. 97 -4 -1.
Attachment: Letter from Bonestroo dated July 17, 1997
c: Jerry Boucher, Utility Superintendent
Phil Gravel, Bonestroo
Dick Foster, Bonestroo
g'—g **1k \97- 4\ yuotmd-
Bonestroo
Rosene
Anderlik &
Associates
Engineers & Architects
July 17, 1997
Mr. Charles Folch
City of Chanhassen
690 Coulter Drive
P.O. Box 147
Chanhassen, MN 55317
Re: Test Drilling for Well No. 8
City Project 97-4 (J-)
Our File No. 39348
Dear Charles:
Ul OF �2 HASSEN
��dC�C�
JUL 21 1997
LKINEERIA DEPT.
On March 21, 1997, we received quotes from three drillers to complete test drilling for a possible
Well No. 8 site. Since that time the potential site has changed. The low bidder has agreed to hold
his bid prices for the new site. The three quotes received are as follows:
E.H. Renner $12,150
Bergerson Caswell $13,230
Keys Drilling $16,400
In addition to the above costs, between $500 and $1,000 will be needed to clear an access trail to the
test drilling site.
We recommend that authorization to proceed be given to E.H. Renner for the test drilling. The
drilling will obtain information on the possibility of an adequate geologic formation for a new well.
The first possible formation would be the Jordan Aquifier at a depth of approximately 490 feet. If
the Jordan formation is suitable, the drilling can stop and the cost will only be approximately $8,350.
However, future city wells are likely to be constructed in the lower Franconia - Ironton - Galesville
Aquifier. It is inexpensive to extend the test hole at this time to obtain valuable information on
thickness and suitability.
If the Jordan formation is not suitable, the drilling will continue into the Franconia- Ironton-
Galesville Aquifier to a depth of approximately 740 feet. This additional drilling would bring the
total cost to approximately $12,150.
Bonestroo, Rosene, Anderlik and Associates, Inc. is an Affirmative Action /Equal Opportunity Employer
Principals. Otto G. Bonestroo. P.E. • Joseph C. Anderlik, P.E. • Marvin L. Sorvala, P.E. - .
Richard E. Turner, P.E. - Glenn R. Cook, P.E. - Robert G. Schunicht, P.E. - Jerry A. Bourdon, P.E.
Robert W. Rosene, P.E. and Susan M. Eberlin, C.P.A., Senior Consultants
Associate Principals. Howard A. Sanford, P.E. - Keith A. Gordon, P.E. - Robert R. Pfefferle, P.E. -
Richard W. Foster, P.E. -.David O. Loskota, P.E. - Robert C. Russek, A.I.A. - Mark A. Hanson, P.E.
Michael T. Rautmann, P.E. • Ted K.Field, P.E. - Kenneth P. Anderson, P.E. - Mark R. Rolfs, P.E. -
Sidney P. Williamson, P.E., R.S. - Robert F. Kotsmith
Offices. St. Paul, Rochester, Willmar and St. Cloud, MN - Milwaukee, WI
2335 West Highway 36 ■ St. Paul, MN 55113 ■ 612 - 636-4600 ■ Fax: 612-636 -1311
1 Mr. Charles Folch
July 17, 1997
Page 2
If the drilling is successful, the final step would include a television inspection and gamma log of
the hole by a separate contractor at a cost of approximately $1,500 to $1,800.
The test drilling site is located in the proposed Highover Addition (see attached map). A right -of-
entry agreement will have to be obtained form the property owner. Dave Hempel has already sent
a letter to Mr. Carlson requesting the right -of -entry. Drilling could begin in August.
Feel free to contact Dick Foster or me if you have any questions or require any further assistance.
Sincerely,
BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC.
P 4
Phil Gravel, P.E.
0
* SITE
x
LOCATION MAP
au
n 100 200
V
ASSUMED GEOLOGY
DEPTH IN FEET
0
DRIFT
320
SHAKOPEE
LIMESTONE
375
JORDAN
SANDSTONE
490 -
ST. LAWRENCE
535-
FRANCONIA
696
IRONTON
GALESVILLE
740-
EAU CLAIRE
THE TOP
FINISHED
WELL CONSTRUCTION DIAGRAM Bonestroo
in Rosene
CHANHASSEN, MINNESOTA FIGURE 1 Km Anderlik d
TEST HOLE NO. 8 M Associates
39WFOI ANY 1007 PMAki 'M'% A 0
COST COMPARISON
JORDAN VS FRANCONIA IRONTON - GALESVILLE TEST HOLE
CHANHASSEN, MINNESOTA
„y
E. H. RENNER
E. H. RENNER
3ERGERSON CASWELI
KEYS WELL DRILLING
JORDAN
HOLE
BID
FIG HOLE
FIG
HOLE
FIG HOLE
FIG
HOLE
ITEM
UNIT
PRICE
OTY
AMOUNT
QTY
PRICE
AMOUNT
PRICE
AMOUNT
PRICE
AMOUNT
Mobilization
LS
$ 500
1
$ 500
1
$ 500
$ 500
$ 1,000
$ 1,000
$ 1,000
$ 1
Drill 8' open hole
FT
$ 13
350
$ 4,550
550
$ 13
$ 7,150
$ 8
$ 4,125
$ 12
$ 6,600
Place 4' casing
FT
$ 4
350
$ 1,400
550
$ 4
$ 2,200
$ 8
$ 4,125
$ 8
$ 4,400
Neat cement
BG
$ 10
120
$ 1,200
140
$ 10
$ 1,400
$ 12
$ 1,680
$ 15
$ 2,100
Drill 4' open hole
FT
$ 4
150
$ 600
200
$ 4
$ 800
$ 10
$ 2,000
$ 10
$ 2,000
Airlift
LS
$ 50
2
$ 100
2
$ 50
$ 100
$ 150
$ 300
$ 150
$ 300
EST CONSTR. COST
1 $ 8,350.00
I S 12.150
1 $ 13,230
1
1 $ 16,400
„y