HomeMy WebLinkAboutNCD980602163_19820709_Warren County PCB Landfill_SERB C_Contract Change Order No. 1-OCR... ·,
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R. E. BEUMER
C. L. C UTTING
E LI LEMCOE
C. N. L<TELLIER
W. LITTLEFIELD
SVERDRUP & PARCEL
G. R. PENNINGTON
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W. H. RIVERS
G.E.ROSENKOETTER
H. G. SCHWARTZ. JR.
B. R. SMITH. JR.
I. R. VERON
R.C.WEST
J . 0 . WHITFIELO
July 9, 1982
Jim Lineberger Grading & Paving, Inc.
Route 2, Box 77A
Gastonia, NC 28052
Attn: Mr. Brent Crisp
Re: PCB Waste Disposal Site,
Warren County, NC
Contract Cha nge Order No. 1
Gentlemen:
JOHN PA RCEL I 92B-196~
L. J. SVERORUP I 9 28-1 976
9 1 91B 55-92 6 0
Enclosed are copies of a sketch and s pecifications , for construction of
four new monitoring wells on the above projec t. Pl ease furnis h us with
your bid price for construction of thse we lls a s soon as possible, s o
that we may process the documents for Cc.1 tract Change Ord e r No. 1 t c
cover their installation.
Very truly yours,
SVERDRUP & PARCEL
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Frank B. Rainey, Jr~
Manager
cc: File 7219
O. W. Strickland
Perry Nelson
Gene Robert
Jack Reavis
Bill Raney
Bob Jansen
Tom Karnoski
1. SCOPE:
SECTION 2D (REVISED)
GROUND WATER MONITORING WELLS
2D-l
(Revised)
Furnish all labor, equipment, materials, and tools
necessary for the construction of the monitoring wells as shown on the
sketch provided with Change Order No. 1 and specified herein.
2. GROUND WATER MONITORING WELLS
2.1 Drilling mud or revert may be used. Casing shall be used if
necessary.
2.2 Each new monitoring well shall be located within 10 feet of
the previously constructed monitoring well it replaces.
2.3 The well shall be 8-inch in diameter.
2.4 The well casing shall be 4-inch diameter, schedule 40 PVC or
approved equal.
2.5 A continuous slot type 4-inch diameter PVC screen 20 feet in
length shall be provided at the lower end of casing. This screen shall
have an end cap.
2.6 The annular space around the well screen shall be backfilled
with a gravel pack graded to match the screen slot size and sized upon
manufacturer's recommendations. The material shall be such that a good
2D-2
communication between the ground water and the well can be established
yet no particle migration is to occur. A bentonite seal shall be placed
above the well screen and the remainder of the annular space above this
seal will be grouted as shown on the sketch.
2.7 The Contractor shall submit to the Engineer information
concerning the screen and gravel pack for approval prior to construction
2. 8 The Contractor shall properly develop the well by a method
approved by the Engineer.
2. 9 The Contractor shall provide lockable steel caps similar to
the detail shown on the sketch.
2.10 If a well is not satisfactory, as determined by the Engineer,
the Contractor shall remove the well and backfill the hole, and redrill
a new well at no additional cost to the Owner.
2.11 The previously constructed four monitoring wells shall be cut
off at the ground surface and filled with concrete to completely seal
off these wells.
3. PAYMENT
3.1 Payment for all work in this section will be included in the
negotiated price in Contract Change Order No. 1.
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