Kleen Industrial Services - Danville, CA
Distributor, Service Company
Stocking distributor of filtering gravel including well pack gravel. Specifications of filtering gravel include 1/8 in. to 2-1/2 in. size, 1.2 to 1.7 uniform coefficient, 2.70 specific gravity, 6 Mohs hardness & 100 lbs./cu. ft. density. Gravel is used to hold back precipitates containing impurities. Meets NSF/ANSI 61 & AWWA B100-01 standards.
Brand Names: Greensand, Schmidt
www.kleenindustrialservices.com/filter.html

Southern Products & Silica Co., Inc. - Hoffman, NC
Manufacturer
Manufacturer of well gravel packs. Available in various sizes including fine, medium fine sand, medium, coarse, & extra coarse. Sieve sizes from 4 to 40. Material is washed, screen-sized, re-washed, & sized. Used in the production of water wells, monitoring wells & recovery wells.
www.sandandgravel.net/filtersand.htm

Atlantic Screen & Mfg., Inc. - Milton, DE
Manufacturer, Custom Manufacturer, Service Company
Woman-owned manufacturer & distributor of well gravel with #1 or #2 sieve sizes.
atlanticscreen.thomasnet.com/item/hole-plug...

Ricci Bros. Sand Co., Inc. - Port Norris, NJ
Manufacturer, Custom Manufacturer
Custom manufacturer of well pack gravel. Well gravel features uniform grain sizes for repeatable packing & water flow. Well gravel is available for slot sizes ranging from 0.067 in .to 0.010 in. (1.70mm to .025mm). Well gravel is packaged in 50 lb. heat seal bags with handles or 3,000 lb. bulk sacks. Certified to ANSI/NSF Standard 61.