Tishomingo NFH Replace Pond Liners

The Department of the Interior Fish and Wildlife Service intends to solicit installation of pond liners at Tishomingo National Fish Hatchery near Tishomingo, Oklahoma, under a Total Small Business set-aside, with a response deadline of September 17, 2026 and performance period of October 1, 2026 through February 28, 2027.

Work encompasses reshaping existing pond bottoms at Ponds 5 and 5.5, installing an underdrain trench with perforated 6-inch Schedule 40 PVC drain pipe, furnishing and installing geotextile fabric on side slopes, and furnishing and installing virgin polyethylene geomembrane pond liners (60 mils thick, 0.940–0.959 g/cu. cm. density). The contractor must obtain borrow materials off-site as needed and avoid damaging existing kettles during operations.

The geomembrane must meet specific ASTM tensile, puncture resistance, and environmental stress cracking requirements. Field seams require nondestructive testing per ASTM D 4437 or GRI Test Method GM6. Work must comply with OSHA regulations and applicable ACI, ASTM, EPA, and AASHTO standards.

The contractor must assign a qualified Field Installation Supervisor with minimum 5,000,000 square feet of flexible membrane liner installation experience and an experienced joiner with 2,000,000 square feet of seaming experience. Normal work hours are 6:30 a.m. to 4:00 p.m., Monday through Friday, with no weekend or federal holiday work without written authorization. The contractor must provide temporary storage, dewatering systems if needed, portable toilet facilities, and handle off-site debris disposal. A 2-year warranty covers repair or replacement of defective geomembranes from substantial completion.

Prevailing wage rates apply per Department of Labor General Decision OK20260040 for Johnston County, Oklahoma.