206-Conklin, Porter & Holmes Engineers, Inc.
WARREN E. KNOWLES
CITY MANAGER
'i\.~ 01 Sanford, Florid.
C\: 32772,1778 q
Commission.. manager Plan
December 19, 1983
Mr. B. C. "Cal" Conklin, P.E.
Conklin, Porter & Holmes-Engineers, Inc.
Post Office Box 1976
Sanford, Florida 32771
Dear Cal:
Re: Wellsf EDB
. jet;
305/322-3161
P. 0, BOX 1778
300 NORTH PARK AVENUE
Enclosed are two executed copies of the contract
signed on December 16, 1983 by action of the City
Commission concerning the work on the municipal water
supply.
"
WEKfmjh
Enclosure
~
Very truly yours,
CITY OF SANFORD
'---.--,;7
- "--'~-7e~
w. E. "Pete" Knowles
City Manager
City Clerk
,
"The Friendly City"
If""'" .
, "
CONSULTING ENGINEERING SERVICES
FOR
EDB WATER WELL CONTAMINATION
STUDIES
BETWEEN
THE CITY OF SANFORD, FLORIDA
AND
CONKLIN, PORTER & HOLMES ENGINEERS, INC.
'-f/ .--'~
T his A G R E E r.' EN T d ate d t his / [-~ / day 0 f . / ~Z&Y1 i3l:::~ ,
in the year Nineteen Hundred and Eighty-Three by and between the
CITY OF SANFORD, FLORIDA (hereinafter called the OWNER) and
CONKLIN, PORTER AND HOLMES - ENGINEERS, INC., 500 West Fulton
Street, Sanford, Florida (hereinafter referred to as the
ENGINEER),is to study and assist OWNER in their current problem
regarding EDB contamination of OWNERS Mayfair well field. The
nature of the assistance will be to provide studies, advice,
counsel, coordination with regulatory agencies (FL D.H.R.S.; FL
D.E.R.; County Health Depart~ent; St. Johns River Water
r1anagement District), laboratory testing and recommended actions
on both the source of the contamination as well as te~porary,
intermediate and more long range solutions to the problem.
ENGINEER will provide general counsel and services himself, and
also employ special outside consultants, subject to approval by
the OWNER, as partly described in the attached, initial
recommended program, Exhibit A, attached hereto.
, ,
'Payment to the Engineer:
The OWNER agrees to compensate the ENGINEER for services
rendered subsequent to the date of this executed Agreement on
the basis shown below.
Principals and Employees of the ENGINEER:
Compensation paid-the ENGINEER for services described above
and on Exhibit A of this Agreement, will be on a cost basis and
will be computed by multiplying direct personnel expense times a
factor of 2.10 plus all reimbursable expenses.
Compensation for outside consultant services will be on a
cost basis, plus 10% for administrative handling, coordination
and responsibility.
Reimbursable Expenses:
Out of pocket expenses for items including transportation
and subsistence of principals and employees while traveling in
connection with the project; additional payroll costs for
overtime work; toll telephone calls; telegrams; and similar
project-related items, are to be reimbursed to the ENGINEER at
the actual cost thereof.
Out of pocket expenses related to outside consultant
services, including transportation and subsistence, are to be
rei~bursed to the ENGINEER at the actual cost thereof, plus 10%.
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Method of Payment:
The OWNER will make prompt monthly payments in response
to ENGINEER's monthly statements without retention for all
categories of services. rendered under this Agreement and for
reimbursable expenses incurred.
Direct Personnel Expenses of CPH employees used as a basis
for payment shall mean the salaries and wages paid to principals
and employees of all classifications engaged directly on the
Project plus the cost of fringe benefits including, but not
limited to, social security, workers compensation, unemployment,
health and retirement benefits, sick leave, vacation and holiday
pay applicable thereto. For the purposes of this Agreement,
Direct Personnel Expense shall be considered equal to 1.448
times applicable salaries and wages.
Insurance
The ENGINEER shall secure and maintain professional
liability insurance and such insurance as will protect him from
claims under the Workmen's Compensation Acts and from claims for
bodily injury, death, or property damage which may arise from
the performance of his services under this Agreement. The face
amount of the ENGINEER's Professional Liability Insurance shall
be $1,000,000.
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IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be executed as of the day and year hereinabove set
forth.
OWNER:
CITY OF SANFORD, FLORIDA
#O/~~
Attest
&
Seal
By:
v!~~
r~ ay 0 r
By the Authority of the City
COQmission of the City of Sanford,
Florida, Granted for the OWNER on
d ate 0 f _: /~'. U'C/'/I 1.,1'[.-Cli:? /L';r /? B i3
ENGINEER:
CONKLIN PORTER & HOLMES -
ENGINEERS, INC.
By:
8?aJf(/~
President
At te s t
&
Seal
-----
Date:
/P~;{{jf
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EXHIBIT A
I NIT I A L R E C 01111 END E 0 PRO G R At~
By
Conklin Porter and Holmes - Engineers, Inc.
(Items listed not all necessarily in order of priority)
t~ ay f air P 1 ant
1. Establish with State (HRS & OER) mlnlmum of 2 supple~entary
labs to the State HRS Laboratory in Tallahassee, for control
and testing out of the following labs:
a) University of Central Florida Lab
b) Environmental Science and Engineers Lab -
Gainesville
c) Thorton Labs, Ta~pa
d) Other
2. Employ Dr. Taylor of the University of Central Florida as
sub-consultant, and get him on site as soon as \Ie can doing
Activated Carbon Column analyses with act~al contaminated
water from affected wells and for other assistance and
counsel.
3. Employ Environmental Science and Engineers, Gainesville, as
sub-consultant and get them immediately into action to
supplement CPH in:
a) Grouond Water Hydrology and Site Geology
b) Laboratory services (see item 1)
c) Advice and counsel on pumping existing contaminated
we 11 s to \'1 a s t e
d) Advice and counsel on granular activated carbon
filtration and other treatment of EDB (They are
already employed by Florida Task Force and have
studied EOB Treatment for them)
4. Emergency pumping of contaminated well or wells to waste to
try to reduce movement of contaminated plume into \Jells not
yet over the EOB limit.
5. Consider temporary or permanent sealing of sink hole areas
adjacent to wells against further possible EDB direct
entrance to acquifer.
6. Exploratory sampling, testing and investigative program to
determine where EOB was applied in the area, the amounts and
when, and to determine the extent of EDB contaminated plume
at Mayfair (if possible) in the surrounding ground and
wells.
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" ... .
7 . Ex P lor e \'Ii thO r" T ay lor, and ESE, C a 1 go n and 0 the r s ,
granular activated carbon treatment for contaminated water
in various capacities and locations, both as temporary and
possible permanent solutions.
B. Gamma Log on contaminated well or wells to see if they are
short cased in clay or in the Hawthorne formation without
properly sealing into the Floridan acquifer, thereby
allowing EOB entry at some level into the well above the
main Floridan acquifer and below casing.
Consider extending or deepening 1 casing and well after some
testing and evaluation to see if deepening casing and well
holds any potential.
9. Explore with adjacent landowners, temporary use of major
irrigation wells as a supplementary, temporary municipal
source with clearing, testing, piping, etc., as required.
10. Try to come up with some contingecy emergency plan if all
Mayfair wells became contaminated over the limit.
11. Explore for additional new well sites and take action toward
testing and drilling for supplementary new wells, piping,
etc.
Auxiliary Water Treatment Plant Site (17-92)
1. Test representative well or wells for EOB in the field.
2. Obtain site or sites and drill new additional well or wells;
pipe to auxiliary plant and increase capacity of existing
high service pumps at Auxiliary Plant, all as an emergency.
(City staff to expeditiously begin on Item 2, while lab
established and testing in Item 1 is underway.
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