Leaching of metal pollutants from four well casings used for ground-water monitoring. Special report

Technical Report · Fri Sep 01 04:00:00 EDT 1989

OSTI ID:6984595

Hewitt, A D

Polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), stainless steel 304 (SS 304) and stainless steel 316 (SS 316) well casings were tested for suitability for ground-water monitoring. A laboratory experiment, testing for the leaching of Ag, As, Ba, Cd, Cr, Hg, Pb, Se and Cu, was run in triplicate by exposing sections of the well casings to ground water for four periods ranging from 1 to 40 days. The results showed that PTFE did not leach any of the nine analytes studied, while SS 316 and PVC showed significant leaching of Cr, Cd and Pb; SS 316 also leached significant amounts of Ba and Cu. Stainless steel 304 showed significant leaching of Cr and Pb. In every case where contamination was observed, the release of metal analyte, when averaged over all of the exposure periods, was the greatest from either SS 304 or SS 316. Released contaminants were sorbed back onto the well casings in several cases.

• Research Organization: Cold Regions Research and Engineering Lab., Hanover, NH (USA)
• OSTI ID: 6984595
• Report Number(s): AD-A-215239/5/XAB; CRREL-SR--89-32
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ALKALINE EARTH METALS
ALLOYS
ARSENIC
AUSTENITIC STEELS
BARIUM
CADMIUM
CHLORINATED ALIPHATIC HYDROCARBONS
CHROMIUM
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CONTAMINATION
COPPER
CORROSION RESISTANT ALLOYS
DISSOLUTION
ELEMENTS
FLUORINATED ALIPHATIC HYDROCARBONS
GROUND WATER
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT RESIS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
LEACHING
LEAD
MATERIALS
MERCURY
METALS
MOLYBDENUM ALLOYS
MONITORING
NICKEL ALLOYS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLLUTION
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
POLYVINYLS
PVC
RESINS
SELENIUM
SEMIMETALS
SEPARATION PROCESSES
SILVER
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STEEL-CR17NI12MO3
STEEL-CR19NI10
STEELS
SYNTHETIC MATERIALS
TRANSITION ELEMENTS
WATER
WATER POLLUTION
WATER WELLS
WELL CASINGS
WELLS