Scrim Reinforced Polyethylene Geomembranes

CALL FOR SEALED BIDS
ONE-TIME PURCHASE OF SCRIM REINFORCED POLYETHYLENE GEOMEMBRANES
INVITATION TO BID #2026-0036-01
Cowlitz County will receive sealed bids until 1:30 p.m. on Monday, August 17, 2026, for the one-time
purchase of approximately twenty-eight (28) 100-foot by 200-foot scrim reinforced polyethylene
geomembranes.
All bids received will be publicly opened and read in the training room of the Public Works Administration
Building at that time. The bid opening will also be accessible via Zoom by visiting
https://us06web.zoom.us/j/84769294913. A recording of the bid opening, along with bid results, will be
posted on the Cowlitz County website following the meeting.
All bids must be submitted on the attached Bid forms. By submitting a bid, the bidder agrees to be
bound by all terms, conditions, and requirements contained herein, unless a proposed deviation is
expressly identified in the bid and accepted by the County. Availability date of material will be a
consideration in the acceptance of the bid.
The outside of the envelope must have the following information:
1. Mailing Address: Department of Public Works
ATTN: Ashley Claussen
1600 - 13th Avenue S
Kelso, WA 98626
2. Bid Description: Scrim Reinforced Polyethylene Geomembranes
ITB #2026-0036-01
3. Date of Bid Opening: August 17, 2026
Firm prices are solicited for approximately twenty-eight (28) 100 ft. x 200 ft. scrim reinforced
polyethylene geomembranes. Cowlitz County will accept no additional charges, including but not
limited to freight, fuel surcharges, or any other fees. This includes products shipped directly to the
County by a manufacturer or distributor on behalf of the vendor.
To be eligible for award, bidders shall indicate in the space provided whether the material offered
meets, exceeds, or deviates from the specified technical requirements. Any deviations shall be clearly
identified and supported with a specification sheet or other applicable documentation. Bidders shall
provide a detailed description and applicable product literature for the material offered.

Bids can be mailed or delivered in person to the address listed above. Faxed and/or e-mailed bids will
not be accepted. Cowlitz County offices are not open for mail or other deliveries on Fridays, weekends,
County holidays, or inclement weather closures. Cowlitz County will assume no responsibility for any
delay in U.S., County, or any other delivery service resulting in a bid being received late. Bids received
after the date and time stated in this call for bids will not be accepted and will be returned unopened to
Bidder. There will be no exceptions or waivers of this requirement. The County's determination of
when a bid was received shall be final and non-appealable.
All documents received in response to this invitation to bid will become a matter of public record and
subject to the Washington public disclosure act under chapter 42.56 RCW.
The Board reserves the right to reject any or all bids, waive informalities or minor irregularities in any
bid, and award the contract to the lowest responsive and responsible bidder whose bid is determined
to be in the best interest of the County.
Dated this 28th day of July 2026.
BOARD OF COUNTY COMMISSIONERS
OF COWLITZ COUNTY, WASHINGTON
________________________________________
Richard R. Dahl, Chairman
________________________________________
Steve Rader, Commissioner
ATTEST:
________________________________________
________________________________________
Kelly Grayson, Clerk of the Board Steven L. Ferrell, Commissioner

BID FORM
(PRINT LEGIBLY IN INK OR TYPE)
The undersigned agrees to all terms above and agrees to complete foregoing work in accordance with
all minimum specifications.
BID SUBMITTED BY: __
(COMPANY NAME)
COMPANY ADDRESS:
CONTACT NAME & TITLE:
EMAIL ADDRESS:
PHONE:
SIGNATURE:
DATE OF BID:
Submit bids by 1:30 p.m., Monday, August 17, 2026
Bids must be mailed or hand delivered
Emailed bids will not be accepted
Cowlitz County Department of Public Works
Attn: Ashley Claussen
1600 13th Avenue South
Kelso, WA 98626
Direct questions to Ashley Claussen
Email: ClaussenA@cowlitzwa.gov

BID FORM
(PRINT LEGIBLY IN INK OR TYPE)
MINIMUM SPECIFICATIONS
100 FT. x 200 FT. SCRIM REINFORCED POLYETHYLENE GEOMEMBRANES
GENERAL
It is the intent of this specification to describe and govern the purchase of 100 ft. x 200 ft. scrim reinforced
polyethylene geomembranes.
FREIGHT Freight costs must be included in the unit price, FOB, Cowlitz
County Headquarters Landfill, 3434 South Silver Lake Road, Castle
Rock, Washington 98611. Bidder will be responsible for any
damage in transit. Yes ___ No ___
Above delivery location does not have an unloading ramp as such
tarps will require delivery in open sided trailer to allow removal
with forklift from the ground. Yes ___ No ___
MATERIAL FOR Griffolyn TX-1600, a 3-ply laminate combining two layers of U.V.
GEOMEMBRANES stabilized coextruded polyethylene and a high-strength nylon cord
grid, which is a registered trademark of Reef Industries, Inc., of
Houston, Texas, or Dura-Skrim R12BV, a 4-layer reinforced
extrusion laminate manufactured by Raven Industries of Sioux Yes ___ No ___
Falls, South Dakota, or approved equal.
MATERIAL Geomembrane shall comply with Geosynthetic Research Institute
PROPERTIES (GRI) GM22 standard specification for test methods, Required
Properties and Testing Frequencies for Scrim Reinforced
Polyethylene Barriers Use in Exposed Temporary Applications. Yes ___ No ___
COLOR, a. Black Yes ___ No ___
QUANTITY AND
SIZE b. Geomembranes each with a dimension of 100 ft. x 200 ft.
size. Yes ___ No ___

BID FORM
(PRINT LEGIBLY IN INK OR TYPE)
Unit Price Extended Price
Item Quantity
(per each roll) (quantity x unit price)
Geomembranes 28 $ $
Freight on board (FOB) at:
Cowlitz County Headquarters Landfill No Charge
3434 South Silver Lake Road
Castle Rock, WA 98611
Washington State Sales Tax (7.7%) $
Total Cost to County $
Earliest available delivery date: ________________________.
Prices quoted on this proposal will be honored by the Bidder until: ________________________.
The bidder acknowledges receipt of the following addenda (if any):________________________.
OPTIONAL:
Other deviations not listed in the foregoing specifications (Including Alternatives/Options):

APPENDIX A
COWLITZ COUNTY PUBLIC WORKS
PURCHASE CONDITIONS
A. This bid is intended to provide a firm price for approximately twenty-eight (28) 100 ft. x 200 ft. scrim
reinforced polyethylene geomembranes in accordance with the specifications contained herein.
B. In event of a discrepancy between the bid unit price and the unit price extension listed in the bid form, the
bid unit price shall govern. The County is obligated only for the quantities identified in the bid documents.
No additional purchases are guaranteed under this contract.
C. Term: The contract shall commence upon issuance of the County's Notice of Award or Purchase Order and
shall remain in effect until all materials have been delivered, accepted, and payment has been made, unless
earlier terminated in accordance with these Purchase Conditions.
D. Right to Reject/Accept: The County reserves the right to reject any or all bids, waive informalities or minor
irregularities, and award the contract to the lowest responsive and responsible bidder whose bid is
determined to be in the best interest of the County.
E. Changes: No changes to the contract requirements, quantities, specifications, delivery requirements, or
other terms of the contract shall be made without written authorization from the County. Any change that
affects the contract price, schedule, or scope of work shall be documented in writing and approved by the
County prior to implementation.
F. Freight: Cowlitz County will accept no additional charges, including but not limited to freight, fuel surcharges,
or any other fees. This includes products shipped directly to the County by a manufacturer or distributor on
behalf of the vendor.
G. Invoices: Payment will be made in accordance with applicable state law following receipt of properly
completed invoices and acceptance of delivered materials. Vendor shall accurately invoice per the prices in
the contract and shall issue one invoice per order. Invoices shall be mailed to:
Cowlitz County Public Works
Accounts Payable
1600 13th Avenue S.
Kelso, WA 98626
or emailed to publicworks@cowlitzwa.gov.
H. Cooperative Purchasing: RCW 39.34 allows cooperative purchasing between public agencies in the State of
Washington. Other public entities (cities, school districts, and so forth), which have filed an interlocal
cooperative joint purchasing agreement with the County may elect to purchase from the vendor based on
the terms and conditions of this agreement, subject to vendor's consent.
I. Deviations: Deviations or alternatives to these specifications will be considered to allow manufacturers to
follow their standard manufacturing processes. Any proposed deviation or alternative must be clearly
identified and fully described in the bid, unless otherwise specified. The County, in its sole discretion, may
approve such deviations only if they do not adversely affect the quality, strength, performance, efficiency,
effectiveness, or service life of the materials. A bid containing deviations or alternatives may be accepted
only with those expressly identified and approved by the Board as part of the contract award. Any deviation
not disclosed in the bid shall not be permitted.
J. Contract/Award: The contract between the County and the successful bidder shall be formed upon issuance

of the County's written Notice of Award or Purchase Order. The contract shall consist of this Invitation to
Bid, including these Purchase Conditions, any addenda issued by the County, the successful bidder's
submitted bid, approved deviations, and the County's Notice of Award or Purchase Order. The bidder's
acceptance of the award constitutes agreement to perform in accordance with all contract requirements.
K. Delivery: The vendor shall deliver the quantities specified in the bid documents to the location designated
by the County. Delivery shall occur within the timeframe stated in the accepted bid unless otherwise agreed
upon in writing by the County. The vendor shall provide all necessary labor, equipment, transportation, and
handling required to complete delivery unless otherwise specified in the contract.
L. Inspection and Acceptance: The County shall have a reasonable opportunity to inspect delivered materials
for compliance with the contract requirements. Materials that do not conform to the contract may be
rejected by the County. Rejected materials shall be removed, replaced, or corrected by the vendor at no
additional cost to the County. Payment shall not constitute acceptance of defective or nonconforming
materials.
M. Warranty: The vendor shall provide, at the time of shipment, a manufacturer's certificate verifying that the
geomembrane material was manufactured and tested in accordance with GRI-GM22 specifications. The
successful bidder warrants that all geomembranes furnished under this contract shall be free from defects
in material and workmanship, shall conform to the specifications and approved submittals, and shall be
suitable for the County's intended use as interim landfill cover applications. Upon written notice from the
County that any delivered geomembrane fails to comply with the foregoing warranty, the vendor shall, at
the County's option, promptly replace the defective materials or otherwise correct the nonconformance to
the County's satisfaction. Acceptance of, use of, or payment for materials shall not constitute acceptance of
defective or nonconforming materials or relieve the vendor of its warranty obligations. This warranty shall
remain in effect for ninety (90) days following delivery of the geomembranes, or for any longer period
provided by the manufacturer's warranty, whichever is greater.
N. Risk of Loss: Risk of loss or damage to materials shall remain with the vendor until delivery and acceptance
by the County.
O. Compliance with Laws: The vendor shall comply with all applicable federal, state, and local laws, regulations,
ordinances, and requirements applicable to the performance of this contract.
P. Conflicting Terms: Any additional or conflicting terms contained in vendor quotations, acknowledgments,
invoices, packing slips, or other documents shall not apply unless expressly accepted in writing by the
County.
Q. Assignment: The vendor shall not assign or transfer any interest or obligation under this contract without
prior written consent of the County.
R. Governing Law: This contract shall be governed by the laws of the State of Washington. Venue for any action
arising under this contract shall be exclusively in the Superior Court of Cowlitz County, Washington.
S. Severability: If any provision of this contract is determined to be invalid or unenforceable, the remaining
provisions shall remain in full force and effect.