Groundwater specialists

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CASE STUDIES - USA

GROUNDWATER SUPPLY DEVELOPMENT PROJECT EXPERIENCE


 

CLIENT:

Montville Township Water & Sewer Department

PROJECTS:

Exploration and Resource Assessment; Aquifer Management Evaluation; Litigation Support;
  Well Efficiency Testing

LOCATION:

Montville, New Jersey

 


UHL provides hydrogeological services to the Montville Township Water & Sewer Department for various projects involving groundwater exploration; test well program design and management, aquifer and regional sustainability assessment and wellhead protection program development and planning.  The Township is characterized by areas underlain by bedrock and buried valley glacial aquifer systems.  The Towaco Valley Glacial Aquifer is the sole source of drinking water supply to the Township.

Principal Projects:

  • Assessment of optimal areas for new production wells within the well design andTowaco Valley Aquifer using surface geophysical exploration techniques.
  • Evaluation of groundwater development feasibility in the Montville Buried Valley Aquifer System along the Rockaway River Valley. An analysis was made of aquifer recharge, sustainability, and storage potential as well as development feasibility over selected portions of this system.
  • Assessment of aquifer recharge to the Towaco Valley Aquifer including an analysis of groundwater/surface water interaction and development sustainability.
  • Development of a Wellhead Protection Program and Ordinance for the Towaco Valley Aquifer.
  • Assessment of production well efficiencies through a step-drawdown testing program and an evaluation of the effectiveness of a well redevelopment program.
  • Evaluation of groundwater quality trends with respect to total dissolved solids, hardness, sodium and chloride.

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CLIENT:

Hoechst Celanese Corporation

PROJECTS:

Hydrogeologic Studies and Application for Groundwater Allocation Permit

LOCATION:

Hoechst Celanese Facility, Bridgewater, New Jersey

 


UHL assisted Hoechst Celanese in obtaining a groundwater allocation permit for the facility which is a combination headquarters and manufacturing location.  Groundwater is used for cooling water as well as process needs and is derived from a bedrock aquifer system.  The permit was granted to Hoechst Celanese for a withdrawal of 0.5 Million Gallons per Day (mgd).

Principal Technical Elements:

  • Installation of test and production wells to supply cooling and process water for the facility.
  • A controlled aquifer pumping test to develop an impact assessment for the proposed groundwater allocation. The NJDEP used this pumping test as a training element for some of its new employees.
  • Preparation of a technical hydrogeologic report in support of the groundwater allocation permit application.

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CLIENT:

Boonton Water Department

PROJECTS:

Exploration Test Well Drilling; Production Well Design and Installation Supervision;
  Aquifer Pumping Tests

LOCATION:

Boonton, New Jersey

 


Aquifer Pumping TestUHL provided services to the Boonton Water Department for groundwater exploration, and management of production well design and drilling programs.

Principal Projects:

  • Production well programs involving preparation of bidding documents; well design; drilling and installation. supervision; and the running of aquifer pumping tests on the installed production wells to evaluate aquifer hydraulic characteristics, sustained well yields, and degree of well interference.
  • Test well drilling programs to assess optimal areas for replacement production wells; design and conduct of aquifer pumping tests.
  • Preparation of permit-related technical reports and impact assessment for allocation permit modification.

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CLIENT:

Morris County Municipal Utilities Authority

PROJECTS:

Production Well Design and Installation Supervision; Aquifer Pumping Tests;
  Land Use Assessment in the MUA’s Wellfield Watershed;
  Scrub Oaks Mine Storage Feasibility Study

LOCATION:

Morris County, New Jersey

 


UHL provided hydrogeologic services for groundwater exploration, management and well facility design and installation to the MUA.

Principal Projects:
Land Use Assessment

  • Evaluation of the feasibility of using an iron ore mine for the storage of water derived from high flow surface water skimming (using horizontal collector wells) to meet peaking water needs particularly in summer months.  The project involved the drilling of a 1,000 foot well into the mine; a 14-day pumping test at 3 mgd to assess interconnection of mine workings and potential for impacts to surrounding groundwater users; and an evaluation of the feasibility of utilizing horizontal collector wells for capturing high flows in a nearby river system.
  • Assessment of production well efficiency (pump and well) and the design of a replacement pump system to avail of unused yield in one of the MUA’s principal production wells.
  • Design boring to assist in a replacement production well for a well that pumped sand and had been improperly designed.
  • Permit application process with the NJDEP-BWA for installation and commissioning of a replacement production well.
  • Evaluation of a major proposed development project within the MUA’s wellfield watershed and development of an assessment of potential for impacts (short and long-term) to the MUA’s production wells.
  • Redevelopment of the utility's main production well to restore well yield and reduce turbidity.

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CLIENTS:

Washington Township Municipal Utilities Authority and Cliffside Park Community Water System

PROJECTS:

Assessment of VLF Survey, Geologic Structure and Lineament Analysis in Precambrian Bedrock Terrain;
  Preparation of Permit-Related Technical Reports for NJDEP-BWA Water Allocation Permit Modification

LOCATION:

Schooley Mountain and Long Valley, New Jersey

 


UHL provided hydrogeologic consulting services to the Washington Township Municipal Utilities Authority for groundwater exploration, and production well permitting. Click on map for larger image.

Principal Projects:

  • Evaluation of aerial photography and Satellite Imagery for an analysis of bedrock fracture traces and lineaments, and correlation of the identified features with existing surface geophysical results from a Very Low Frequency (VLF) survey and published geologic structure.  Study objectives were the development of additional groundwater resources within a crystalline bedrock terrain.
  • Evaluation of test production well aquifer testing results; aquifer hydraulic characteristics, sustained yield, impact assessment and preparation of the hydrogeologic report in support of a NJDEP-BWA water allocation permit modification for additional resource allocation.
  • Evaluation of existing well information, and coordination of the utilization of a vertical electrical sounding (VES) survey to identify a targeted fractured aquifer zone. Evaluated data and designed a replacement well for the community to optimize yield.

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CLIENT:

Montclair Water Bureau

PROJECTS:

Aquifer Pumping Test; Evaluation of Aquifer Hydraulic Parameters, Sustained Yield Analysis;
  Preparation of Hydrogeologic Report for NJDEP-BWA Water Allocation Permit Modification

LOCATION:

Montclair Township, New Jersey
 


UHL provided consulting services to the Montclair Township Water Bureau for aquifer testing and analysis of a 1.4 million gallon per day (mgd) production well and related regulatory permitting activities.

We conducted a hydrogeologic characterization of the Passaic Aquifer system for a New Jersey Water Allocation Permit Application which included installation of groundwater observation wells, conductance of a 72-hour aquifer pumping test, data collection, analysis, interpretation and preparation of a hydrogeologic assessment report in support of a water allocation permit application. The allocation permit was approved by the NJDEP for 900 gpm.

 

 

 

 

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CLIENT:

Town of Clinton Water Department

PROJECTS:

Production Well Design and Installation Supervision; Aquifer Pumping Tests; Groundwater Modeling;
  Preparation of Hydrogeologic Reports for Two NJDEP-BWA Water Allocation Permits

LOCATION:

Town of Clinton, New Jersey

 


UHL provided hydrogeologic services to the Town of Clinton Water Department for groundwater exploration, test well and production well drilling, groundwater modeling and management, and well facility design and installation.

Principal Projects:

  • Modeling groundwater pumping scenarios to simulate the pumping effects from two production wells on possible contaminant migration paths from nearby sources. Calibrated groundwater model runs showed the contaminant paths in the groundwater flow system and resulted in the NJDEP BWA approving an allocation for an existing production well.
  • Drilling 3 test wells in the limestone/dolomite formation to identify a location for a future production well.
  • Developing drilling specifications and supervising drilling of a 400-foot production well for the Clinton Water Department. Subsequently an allocation permit application was submitted to the NJDEP-BWA for approval and the permit was obtained.
Barber Rig casing install

Model

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CLIENT:

East Orange Water Commission

PROJECTS:

Exploration; Resource Assessment; Test Well Drilling; Aquifer Pumping Tests; and Permitting

LOCATION:

East Orange, New Jersey

 


UHL provided hydrogeologic consulting services to the East Orange Water Commission for projects involving groundwater exploration, test and production well drilling program management, water allocation permitting, well efficiency testing, and strategic planning.  The East Orange Water Department derives its supply from 4 wellfields constructed in the East Orange Water Reserve which is 2,300 acres in area and has been preserved since the turn of the last century (circa 1900).  These wellfields supply 10 million gallons per day to the City.

Principal Projects:

  • Aquifer pumping tests on new production wells to evaluate aquifer hydraulic characteristics and degree of well interference.
  • Installation of two test wells; design and conduct of aquifer pumping tests; and preparation of permit-related technical reports and impact assessment for allocation permit modification.
  • Production well design and preparation of bid contract documents.
  • Evaluation of production well conditions through well efficiency testing and the development of recommendations for wells to be replaced, redeveloped, or relocated.
  • Redeveloping sand & gravel and bedrock wells using traditional redevelopment tools and new state-of-art techniques such as air-bursting and air-surging.

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