Climate-based disasters caused $46 billion in damage in the U.S., with inland flooding emerging as the costliest weather event for the first time since 1997.*

For those who manage water wells, preserving water quality is paramount after a flood event. However, the impact may even go beyond the wellhead and affect conditions within the aquifer. A well that has been flooded should be considered unsafe for potable use until the well has been tested to make sure it is safe for use as drinking water.

The following is a summary of services that should be performed after a flood event:

  • Electrical components should be inspected to ensure they are not compromised.
  • Pump flooded wells for several hours to clear debris and floodwater. Do not pump this water through treatment and distribution systems.
  • Conduct a video survey to determine the well's condition.
  • If exposure to floodwater is suspected, the pump should be pulled from the well for cleaning.
  • After cleaning is completed, a chlorination treatment is recommended to disinfect before returning the well to service.

Flooded well systems can potentially benefit from the following Layne services:

  • Electric motor repair/replacement
  • Control system inspection and repair
  • Control component replacement
  • Water Well disinfection
  • Pumping equipment disassembly and inspection
  • Pumping equipment replacement
  • Well Seal inspection and replacement
  • Pump and water well performance testing
  • Water quality analysis
  • Licensed electrician on staff

Layne's Water Treatment Technologies includes Temporary, Semi-Permanent and Permanent Treatment Solutions, such as our Conex System and MOS Trailer.

Our team of experts have the following emergency equipment on hand to provide water treatment to affected areas:
  • Five (5) One-million gallon per day filtration units.
    • The filtration media type can be selected for the specific treatment needs, i.e. mixed media filtration, iron, manganese, arsenic removal, radium removal.
    • These are self-contained in con-ex boxes (40 foot shipping containers) and be mobilized within 48 hours.
    • They are NSF-61 approved for drinking water.
    • Generator power can be supplied for this system.
    • Our team can process the shipping logistics and requirements, as well as training for this system.
  • Two (2) 210 gpm ultra-filtration membrane treatment systems with 0.2 micron filtration capabilities.
    • These systems are on trailers.
    • One be mobilized within 48 hours; the other can be mobilized within 2 weeks
    • These systems are not NSF-61 approved for drinking water but could be used for emergency pretreatment prior to NSF-61 approved RO systems (provided by others).
    • Generator power can be supplied for this system.
    • Layne can process the shipping logistics and requirements, as well as training for this system.

Additional Resources:

NGWA:  Resources for dealing with a flooded water well
EPA article: What to Do After the Flood
City of Houston: Well Disinfection (standard chlorination procedure)
NRWA article: Rural Water Responds to Massive Floods in Louisiana

If you need assistance in evaluating your commercial water well after a high water event, Layne can help.
Please give us a call at 281.475.2600 or Email now.

*Source: (2016: A historic year for billion-dollar weather and climate disasters in U.S.)