MS4 Illicit Discharge Investigation Using Thermal Imaging UAVs

Research and Development, Village of Laurel Hollow, New York Walden, Harkin Aerial, and the Friends of the Bay (Oyster Bay) applied for and received a grant from the Nassau County Soil and Water Conservation District to use drones to help the client improve water quality in the Laurel Hollow Subwatershed by mapping water infrastructure, detecting… Read More

MS4 Illicit Discharge Investigation Using Thermal Imaging UAVs–Mill Neck Creek

Research and Development, Village of Bayville, New York (Mill Neck Creek) On this project, Walden and Harkin Aerial used drones to help the client improve water quality in the Mill Neck Creek Subwatershed by better mapping water infrastructure, detecting and locating possible illicit discharges in stormwater systems (MS4) and identifying other areas that could be… Read More

Walden Develops a Tank Coating Renewal and Improvement Prioritization Program

Working for a mid western U.S.A Investor-Owned Utility company, Walden developed a renewal and improvement prioritization program for tank coatings.  The utility provides drinking water to over 650,000 people in 46 cities and towns. With more than 125 tanks spread throughout the separate distribution systems, and limited funds for improvements, the need for a prioritization… Read More

Energy Audits of Water/Wastewater Treatment Facilities

Energy audits of water/wastewater treatment facilities are conducted with a goal to improve the efficiency of energy consumption by these facilities and to reduce or mitigate greenhouse gas emissions. Walden engineers analyze the process operations of the facilities to develop unique emission reduction strategies that maximize the emission reduction benefits for that facility. Significant savings… Read More

MS4 Illicit Discharge Detection Investigation using Thermal Imaging UAVs

Walden is working to assist MS4 communities to improve storm water quality by using thermal imaging from drones to efficiently identify sources of potential pollution. Efficiently identifying heat differentials in the soil using aerial thermal imaging technology can pinpoint illicit discharges, failing onsite wastewater treatment systems and other pollution sources, which can then be inspected… Read More