Dave Maclean and Dave Harwood Present at NEWWA on Replacement Well Installation

April 23, 2018

GeoInsight's Director of Water Supply, Dave Maclean and Senior Hydrogeologist, Dave Harwood present on Replacement Well Installation

At this year's New England Water Works Association (NEWWA) Spring Conference and Expo, GeoInsight's Director of Water Supply, Dave Maclean and Senior Hydrogeologist, Dave Harwood presented on Complications and Solutions Associated with Replacement Well Installation from the project recently completed for the North Conway Water Precinct (NCWP) to a large audience during the groundwater education section.


The presentation covered a range of technical, financial, and environmental challenges associated with a replacement project recently completed for the NCWP. Issues covered included:

  • Tropical Storm Irene and the hazards associated with siting water supplies in the Saco River Valley with an actively meandering river system

  • Well reconnaissance in the Saco River Valley using sonic drilling techniques

  • Use of glass beads in filter pack design to improve well efficiency

  • Complications with Federal Emergency Management Agency reimbursement and opportunities using the Methyl Tertiary-Butyl Ether (MTBE) Settlement Funds

  • Withdrawal testing during the historic drought of 2016

Didn't get a chance to attend the presentation?

Download the presentation here and contact us if you have questions.




NEWWA hosts the Spring Conference every year at the DCU Center in Worcester, Massachusetts. This event draws approximately 3,000 water works professionals for over 2 days and features 18+ concurrent technical sessions for Training Contact Hour (TCH) credit, water treatment plant tours, and 230+ exhibits.  As a membership organization for those working or interested in the drinking water profession, NEWWA strives to promote public health, safety, quality of life, and environmental stewardship through education/training, advocacy, and outreach relating to safe drinking water. GeoInsight has been a long-time member of NEWWA and Dave Maclean currently serves on NEWWA's groundwater committee.

Get In Touch:

If you have questions, get in touch with our presenters:

Dave Maclean, PG, LSP, LEP Director of Water Supply

Get in Touch with Dave Maclean

DAMaclean@geoinc.com | 603.314.0820

Dave Harwood, PG, Senior Hydrogeologist/Project Manager

Get in Touch with Dave Harwood

DGHarwood@geoinc.com |978.679.1600

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