HomeMy WebLinkAbout6.i. Payment #4. Well #9 City Project #273A " CITY OF ROSEMOUNT
EXECUTIVE SUMMARY FOR ACTION
CITY COUNCIL MEETING DATE: January 7, 1997 ,
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AGENDA ITEM: Payment #4, Weil #9 AGENDA SECTI(�111: I
City Project #273A Consent I
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PREPARED BY: Bud Osmundson AGEND��{�:.p A � � �
City Engineer/Public Works Director � C����
ATTACHMENTS: Payment Voucher #4 APPROVED
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This is a request for council consideration for payment #4 and final for City project #273A,
Well #9 Construction. The amount requested is 547,656.35. Staff recommends payment as
requested.
The contractor, Keys Well Drilling, completed the drilling and development of Well #9 at a final
cost of 5158,024,50. The original bid amount was 5152,540.00. As explained in the ietter
from Dick Foster, P.E. from Bonestroo, the 55,500 spent in extra cost for the wetl was spent
on development of the well and change in casing size. Bath of these changes should make
Well #9 a larger capacity well than originally designed. Most Jordan Aquifer wells which are
drilled today #or municipalities are in the 1D00-1200 GPM range. However, with the added
55,500 in construction, Wel1 #9 should produce 1600 GPM. We do anticipate a change order
for higher capacity pumping equipment which will be forthcoming for the pump house
contractor. The added 400 to 600 GPM could delay the drilling of an additional well for a
number of years and for a total cost of less than S20,000. Well dritling is an inexact science
and we were lucky to encounter the right geologic formation and a good driller which allowed
us to have a well which can produce almost 50% more water than anticipated:
RECOMMENDED ACTION:
Motion to approve Payment #4 and final in the amount of $47,656.35 to Keys Well Drilling
for Well #9 construction Cit Pro'ect #273A
Y 1
COUNCIL ACTION:
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� � � � Bonestroo,Rosene,�Anderlik and Associates,Mc..is an Alfirmative Artion/fqua/Opportunrty Emp/oyer . �
BO, /�S{.COQ Principats:Otto G.Bonestroo.P.E.•Joseph C.Antlerlik,P.E.•Marvin L.Sorvala,P.E.•
RicharC E.Turner.P.E.•Gienn R.Cook.P.E.• Thomas E.Noyes,P.E.•Robert G.Schunicht.P.E.•
ROC��� Jerry A.Bourdon,P.E.•Roberc W:RoSene.P.E.antl Susan M.Ebedin,C.P.A.,Senior Gonsultanu
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Anderlik & Associate Principa/s:Howartl A.Sanford.P.E.•Kerth A.Gordon.P.E.•Robert R.Ptefferle.P.E.•
Richard W.foster.P.E.•Dav1d O.Loskota,P.E.�Robert G.Russek.A.I.A.•Mark A.Hanson.P.E.•
Michael T.Rautmann,P.E•Ted K.Fieltl,P.E.•Kenneth P.Anderson;P.E.•Mark R.Rolfs.P.E.•
A��0���}^� Sidney P.Williamson.P.E..L.S.•Robert E Kotsmith
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Oflices:St.PauCRochester,Wiilmar and St.Cloud,-MN•Mequon,WI
Engineers &Architects
December 6, I996 ���
,�;.�.�
Mr. Bud Osmundson �9s6�v�
City of Rosemount
2875 145th Street W
Rosemount,MN 55068
Re: Final Pay Request
� Well No. 9
City Project No. 273
BRA File No.42407
Dear Bud:
Enclosed is Request for Payment No. 4 & Final along with the Minnesota IC-134 withholding
form for the Well No. 9 project. The work has been completed and we recommend that final
payment be made to the Contractor.
The final payment amount is approximately $5,500 (3.6%) more than the contract amount. This
is due to finishing the well with the larger 24 inch casing and that the development quantities
were higher than estimated on the bid proposal. The change from an 18 inch well to a 24 inch
well was decided last August and accounts for $2,900 of the increase. Approximately twice the
estimated amount of sandstone was removed to form the well cavity. Although, most of this
increase was offset by less air surging and test pumping costs, the remaining cost increase was
due to sandstone removal.
It was anticipated that Well No. 9 would produce 1,000 - 1,200 g:p.m. as do the City's other
wells. Well No. 9 actually produces 1,600 - 1,$00 g.p.m., primarily due to the additional
development work. We are presently obtaining costs from the Pumphouse Contractor to install
larger capacity pumping equipment. A higher capacity at Well No. 9 could delay the necessity of
constructing Well No. 10 a few years.
If you have any questions,please ca11 me at(612) 604-4840.
Sincerely,
BONESTROO, ROSENE, ANDERLIK& ASSOCIATES, ING
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Richazd W. Foster, P.E.
RWF:kIg
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2335 West Highway 36 • St. Paul, MN 55113-3898 ■ b12-636-4600
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�K Owner: CITY OF ROSEMOUNT.P.O.BOX 510,ROSEMOUNT,MN 55068 Date: December`3, 1996
�� For Period: Oetober t 1, 1996 to December 3, 1996 R uest No.: 4&Finai
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� Contractor. KEYS WELL DRII.LING,413 N LEXII��GTON PARKWAY,ST.PAUL,MN 55104
REQUEST FOR PAYMENT
DEEP WELL NO.9
File No.42407
STJIVIMARY
� 1 Original ContractAmount $ 152,540.00
II' e Order-Addition $ '
2 Chang
; 3 Change Order-Deducdon $
: 4 Revised Contract Amount $ 152,540.00
i 5 Value Completed to Date $ 158,024.50
� 6 Material on Fiand $ 0.00
� 7 Amount Earned $ 158,U24.50
; 8 Less Retainage 0°l0 $ 0.00
9 Subtotal $ 158,024.50
' 10 Less Amount Paid Previausly $ 110,36$.15
11 AMOUNT DUE THIS REQUEST FOR PAYMENT NO. 4&Final $ 47,65635
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' Recommended for Approval by: �I
BONESTROO,ROSENE,ANDERLIK&ASSOCIATES,INC. ,
,�9'C��/��
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Approved by Contractor: Approved by Owner.
KEYS WELL DRILLING CITY F SEMOUNT '
Specified Contract Completion Date: Datec
1:�424W 240TR E�U E ST4.W 82