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FBO DAILY ISSUE OF JULY 13, 2005 FBO #1325
SOLICITATION NOTICE

99 -- Juniper Uranium Mine Site

Notice Date

7/11/2005
 

Notice Type

Solicitation Notice
 

NAICS

237990 — Other Heavy and Civil Engineering Construction
 

Contracting Office

Department of Agriculture, Forest Service, R-5 Southern Sierra Province, 1600 Tollhouse Road, Clovis, CA, 93611
 

ZIP Code

93611
 

Solicitation Number

RFP-R5-15-05-23
 

Response Due

8/22/2005
 

Description

Project Schedule: The Forest Service expects to award the design and construction contract in the fall of 2005. The Site will be immediately available to the contractor to commence site preparation and materials staging, while the weather cooperates. Final design work, which includes the preparation of final construction drawings and specifications, and project work and safety plans, will be accomplished from October 2005 to May 2006. Otherwise construction is not expected to begin until the site is accessible in late May or early June 2006. The Forest Service expects that construction will be completed in the 2006 construction season and that there will be a minimum of 3 optional years of O&M to assure the site is stable and a vegetative cover established. Project Location: The Juniper mine is located at an elevation of 8,500 feet in the Stanislaus National Forest, Summit Ranger District, about 40 miles east of Sonora, California. Directions: HWY 108 east of Sonora to Forest Service road 5N01, approximately 35 miles, on the right, follow signs to Niagara OHV area. Stay on 5N01 for approximately 12 miles to the turn off for Forest Service road 5N33, the entrance gate to the Site is a few hundred yards up 5N33, which is closed to the public. The 5N33 turn off is between Sardine and Red Rock Meadows. Haypress Meadow, and a cluster of summer cabins, is 1 -2 miles past the turn off. Project Description: The Juniper Uranium Mine Site (Site) is an abandoned open pit uranium mine. After discovery of uranium in 1955, the mine produced an estimated 500 tons of ore from 1956 to 1966. Ore processing was not performed on site. The main site features, including the open pit and three overburden and waste rock piles, encompass approximately 34 acres. The estimated combined volume of the waste rock and overburden piles is approximately 50,000 cubic yards. The Forest Service plans to consolidate the waste piles and sediments from outwash areas around the site back into the open pit in an engineered Group A mine waste repository. Because of a spring at the bottom of the pit and seeps emanating from the pit head wall, construction of an under drain (drain rock, perforated polyvinyl chloride (PVC) piping, drainage fabric, and sand layer) to prevent groundwater from flowing into the repository will be required. Contaminated material is to be consolidated into the repository in a prescribed order, covered with a 30-mil flexible geomembrane liner, a sand drainage layer and a minimum of 3 feet of clean soil from waste pile #3. Disturbed areas and the final cover material will be graded, blended in with natural contours and revegetated to minimize surface erosion. Because of the partially saturated condition of waste pile # 2, which is the most significant source of waste to be place in the repository, a water treatment system will be required. The repository is expected to generate drainage that will require treatment for a brief period of time after construction. The Forest Service expects to use an on site passive ion exchange to treat drain down from the repository. Design specifications for treatment will be developed based on analytical results of drainage after construction is completed. This project will require 100% performance and payment bonds. Brief Hazard Description: (Hazards/Environmental Impacts): Elevated levels of uranium and gamma radiation have been detected in the area of the open pit and waste rock pile #2. Levels of gamma radiation were highest in waste rock pile #2 (125 to 11,500 micro Rem per hour) and the mine pit (30 to 6,500 micro Rem per hour). Uranium was detected above the 1,064 mg/kg recreational Preliminary Remediation Goal (PRG) on the surface of waste rock pile #2. Sediments containing radio nuclides, including Uranium and it?s decay products continue to migrate offsite from the pit and waste pile #2 with spring runoff, frequent summer thunderstorms and windborne dust. Red rock creek and the area immediately around the site are utilized by the public, wildlife and grazing cattle. Sensitive areas immediately down gradient from the site include Red Rock and Sardine meadows. Pre bid tour scheduled date:July 15, 2005, 10:00AM to meet at Summit Ranger District,Stanislaus National Forest, Pinecrest CA. Estimated Government Price Range is $100,000,000 and $500,000,000
 

Place of Performance

Address: Stanislaus National Forest, Summit RD, No 1, Pinecrest Lake Road, Pinecrest, CA

Zip Code: 95364

Country: USA
 

Record

SN00844405-W 20050713/050711211711 (fbodaily.com)
 

Source

FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)

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