Accreditations / Awards / Testimonials
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Testimonials
Duke’s takes pride in getting the job done right, every time! Here is what our clients have to say about our service and the results we deliver.
Affiliations
Duke’s team has served across the various underground infrastructure organizations as:
- President of the National Association of Sewer System Companies (NASSCO), as well as served on the board of directors.
- Chair of several national Water Environmental Federation (WEF) and local State Member Associations committees focusing on the development and application of new technologies in the wastewater industry.
Memberships/Affiliations:

NASSCO - National Association of Sewer Service Companies

APWA -American Public Works Association

NO-DIG - Trenchless Technology

CWEA - California Water Environment Association

MSTT - Midwest Society for Trenchless Technology

UCT- Underground Construction Technology

NRWA - National Rural Water Association
Current Training Classes
Duke’s holds training classes throughout the country and is registered with many states for Continuing Education Units (CEU’s) and Professional Development Hours (PDH) units. Contact us if you are interested in learning more about our classes in your area or to host a class at your location.
Past Training Classes
NASSCO
ISAWWA
Manhole Inspection & Analytics Techniques – Michelle Harrod, Michelle Harrod, Infrastructure Programs Director, Dukes
Abstract: Sanitary sewer manholes can be major contributors to a system’s inflow and infiltration. These structures, when repaired correctly can make a large positive impact on the reduction of excess I&I. The application of inspection standards and analytics can help utilities to prioritize the sewer manholes with the greatest contribution of I&I or structural defects. This class describes the standards for inspection based on the NASSCO MaCP v7.0 standards as well as additional analytics and insights a utility can use for their I&I reduction program
Trade Show Abstracts (good section to upload all abstracts submitted at trade shows)
Procurement Groups: BuyBoard, HGAC, CoStars