Home Safety / Products / Hydraulic Fracturing Flowback Water (BTEX, NORM Radium-226/228, Glycol Ethers, Glutaraldehyde + DBNPA Biocides, AFFF Drilling-Pad Co-Contamination)

Hydraulic Fracturing Flowback Water (BTEX, NORM Radium-226/228, Glycol Ethers, Glutaraldehyde + DBNPA Biocides, AFFF Drilling-Pad Co-Contamination) — household safety profile

High risk

Not medical or professional safety advice, and not a substitute for a qualified clinician — consult one. Full disclaimer →

Hydraulic fracturing flowback water — the fluid that returns to surface within hours to weeks of frac-stage completion — is a dense and chemically complex mixture: fracturing-fluid additives (proppant carriers, viscosifiers, friction reducers, biocides, scale inhibitors, surfactants), formation-water co-produced compounds (BTEX, NORM radium isotopes, dissolved methane), and reaction products.

What is this product?

Hydraulic fracturing flowback water — the fluid that returns to surface within hours to weeks of frac-stage completion — is a dense and chemically complex mixture: fracturing-fluid additives (proppant carriers, viscosifiers, friction reducers, biocides, scale inhibitors, surfactants), formation-water co-produced compounds (BTEX, NORM radium isotopes, dissolved methane), and reaction products. The 2005 'Halliburton loophole' (Energy Policy Act §322) exempted hydraulic fracturing fluids (other than diesel) from SDWA Underground Injection Control permitting; EPA's 2016 Final Hydraulic Fracturing Drinking Water Assessment confirmed the potential for drinking-water impacts under specific circumstances (poor well integrity, surface spills, inadequate produced-water management). The dominant constituents behind human-receptor risk are: (1) BTEX — benzene IARC Group 1 carcinogen, persistent in shallow groundwater plumes; (2) NORM — radium-226 (1,600-yr half-life) and radium-228 (5.75-yr) co-mobilized from formation; (3) glycol ethers — primarily 2-butoxyethanol (EGBE), used as surfactant; (4) biocides — glutaraldehyde and DBNPA dominant in shale gas; (5) co-contamination from AFFF (PFAS-laden firefighting foam) used at well-pad emergencies. Surface-spill scenarios (truck rollovers, pit-liner failures, well-pad runoff into surface water and shallow aquifers) are the primary aquifer-contamination mode in EPA case studies. State oil-and-gas commissions regulate via spill reporting and produced-water containment rules.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Btex Carcinogen

Btex Aromatic

Btex Aromatic Mixture

Norm Radioisotope

Norm Radium Class

Glycol Ether Surfactant

Biocide Glutaraldehyde

Biocide Dbnpa

Afff Cocontaminant

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