Uhl & Associates,
Inc. 2006 to present
Dept. of Geology, University at Buffalo: Research Assistant, 2003 to 2006
Netherlands Assisted Project Office, India: Hydrogeologist, 1999
Mr. Daw began his career as a hydrogeologist with the Netherlands Assisted Project Office in Hyderabad, India. He participated in a project to identify areas of wells in the State of Andhra Pradesh with acceptable fluoride concentrations and setting a framework for sharing and distributing high quality water. He provided basic interpretation of satellite imagery and created maps of well locations using image processing software.
With UHL & Associates, Mr. Daw has gained extensive field experience with many aspects of water supply development and management as well as utilizing his excellent quantitative and computer skills. He has supervised well drilling, installation and development programs in both bedrock and unconsolidated geologic settings. These programs have included installing a 1.4 Million Gallons per Day (MGD) replacement production well for an urban water utility and installing test wells to assess the feasibility of extracting and filtering river water during periods of high-flow by horizontal collector and/or shallow conventional vertical wells, and drilling bedrock wells up to 1000 feet (300m) to reach into an abandoned iron-ore mine being considered for a possible water storage reservoir.
He supervised a successful well redevelopment program to restore a 1.4 MGD production well critically needed by a large water utility. He has experience in conducting long and short-term pumping tests and analyzing data to evaluate aquifer characteristics. Mr. Daw has also been involved with conducting soil and groundwater contamination investigations in New Jersey. He has acted in a technical oversight capacity for the cleanup of residential properties impacted by leaking home heating oil tanks or spillage on behalf of a major insurance company. These projects involved soil excavation and groundwater dewatering adjacent to and beneath structures, and in-situ biological and chemical remediation.
Mr. Daw created an analytical element model (AEM) for simulating groundwater flow and contaminant transport that supported a water allocation permit issued for a production well by the NJDEP – Bureau of Water Allocation. He is familiar with analytical and numerical groundwater models and their applications. He processed satellite imagery, interpreted geologic lineaments and fractures from satellite images and aerial photographs, and created a set of GIS base maps and a related database for a groundwater supply project for six villages in Sri Lanka.
Mr, Daw is very proficient in GIS systems and AutoCAD. He has prepared numerous field maps, complied geo-databases, and constructed detailed 2D and 3D specification drawings.
Mr. Daw is fluent in English, Hindi, Marathi, and can communicate in various Indian dialects.
WorldWater & Solar Power Corporation, Hambantota District, Sri Lanka
Interpreted lineaments and fractures from aerial photographs and satellite images to site test and production well drilling locations for a USTDA-funded (United States Trade and Development Agency) water supply project for six villages. Used GIS to create project base maps and assisted in creating water distribution system diagrams.
Bakwa Groundwater Study, Farah Province, Afghanistan
Interpreted Landsat satellite imagery and prepared project figures and field base maps for a USAID-funded groundwater study.
Litani Basin, Lebanon
Developed a regional Potentiometric Surface Map for the Upper Litani River Basin using water-level data collected from field surveys.
University of Delaware and Engineers Without Borders, Bamendjou District, Cameroon, Africa
Procured and analyzed Landsat images for students from University of Delaware and developed base maps.
Clinton Borough Water Department, New Jersey
Created an Analytical Element Groundwater Model to determine pollutant paths from point sources under pumping conditions and recommend pumping scenarios. This study resulted in the New Jersey Department of Environmental Protection issuing a Water Allocation permit for a critically needed municipal production well.
East Orange Water Commission, New Jersey
- Conducted short-term specific capacity tests to assess decrease in well efficiency.
- Developed well redevelopment program for wells completed in sand and gravel formation.
- Redeveloped large capacity wells in the East Orange Well Field using time tested methods such as simultaneous air-lift and double surge blocks, acid and chlorine treatment, and new techniques such as air-surging, and air-bursting.
- Developed bedrock and glacial wells redevelopment specifications.
Morris County Municipal Utilities Authority, New Jersey
- Supervised the investigation of a production well to determine the cause of severely increased turbidity, and the successful redevelopment of this well to open partially closed screens, reduce entrance velocities, increase specific capacity, and achieve an acceptable level of turbidity. Participated in the redesign of this high capacity well.
- Supervised the drilling, construction and development of shallow wells in coarse glacial outwash materials adjacent to the Rockaway River to evaluate the feasibility of extracting river water during periods of high-flow. This program utilized an innovative sonic drilling technique that proved optimal in this setting. Conducted and analyzed short and long-term aquifer tests to evaluate aquifer characteristics and modeled yields for potential horizontal collector wells.
- Supervised the drilling and construction of bedrock wells into stopes of an abandoned iron-ore mine being considered for use as a water storage reservoir. Conducted and analyzed a long-term aquifer test to determine the interconnection of the mine stopes and the natural flux of groundwater into the mine.
- Supervised and analyzed two step-drawdown and 72-hour constant rate pumping tests to assess impacts of higher pumping rates.
City of Orange Water Department, New Jersey
- Supervised the drilling, construction and development of a 1.4 MGD replacement production well in coarse glacial outwash material.
- Conducted and analyzed a step-drawdown test on the replacement production well to calculate the well efficiency and sustainable long term pumping rate.
- Conducted and analyzed a 72-hour constant rate aquifer test on replacement production well.
Washington Township Municipal Utilities Authority, New Jersey
- Analyzed long-term pump test results and prepared a hydrogeologic report as part of a Water Allocation Permit Application submitted to the New Jersey Department of Environmental Protection.
- Analyzed Very Long Frequency (VLF) survey data, aerial photography, and Landsat images to identify and map lineaments and fracture zones. This study was followed by field geophysics to accurately identify lineaments and fractures to drill and construct three production wells.
- Conducted a Vertical Electrical Sounding (VES) survey to identify the thickness of a fractured zone. The results of this study were used to select an appropriate drilling method and well construction.
- Transferred VES data points into the GIS system and developed resistivity surface maps using kriging methods. The outputs resulted in a base maps showing the VES location and the corresponding vertical surface resistivity for each VES location.
Boonton Township Water Department, New Jersey
Conducted and analyzed a step-drawdown test on a replacement production well to calculate well efficiency and a sustainable long term pumping rate.
Spring Meadow Farm, Delaware Township, New Jersey
- Conducted a watershed study to determine groundwater recharge in the basin.
- Supervised drilling, construction and development of two wells in sandstone/shale bedrock.
- Conducted and analyzed a 24-hour pumping test to determine the effects of pumping on wetlands and neighboring properties.
- Prepared a hydrogeologic report as part of a study to determine the viability of using a natural spring as a source for potable drinking water.
Aqua Pennsylvania, West Chester, Pennsylvania
- Provided oversight on installing shallow monitoring wells.
- Conducted slug tests for calculating the hydraulic conductivity of the rock.
- Estimated collector well yields using calculated aquifer parameters.
Princeton Hydro, Southampton Township, New Jersey
Conducted multiple soil borings to examine lake-bottom sediments and define the historical lake bottom for dredging purposes.
Lafayette Township, New Jersey
Conducted and analyzed slug and permeability tests to determine aquifer characteristics.
City of Lambertville Environmental Commission, New Jersey
Assisted the commission in updating the zoning, soils, geology, soils, flood, wetlands and open space maps for the 2008 Environmental Resource Inventory Report.
Chubb Insurance Company
- Provided oversight of soil and groundwater remediation of releases from residential heating oil underground storage tanks in New Jersey.
- Supervision of monitoring well installations and sampling.
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