Well Supply Installation & Testing

Private and public water supply wells are essential infrastructure components that necessitate meticulous evaluation of geologic, hydrogeologic, and water-quality conditions. Understanding groundwater availability, aquifer dynamics, and well efficiency is crucial for effective water-supply planning. AA GeoEnvironmental provides technical assessment review services to facilitate the planning and preservation of water well supply and aquifer testing projects.

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Supply wells—such as those serving residential, commercial, agricultural, or industrial uses— often require technical justification to support: adequacy of yield, reliability, protection from contamination sources, long-term sustainability considerations, property transactions, and due-diligence. Public supply wells serving municipalities, utilities, or community systems typically involve more extensive technical documentation and stakeholder review.

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Aquifer tests (such as pumping, constant-rate, step-drawdown, and slug tests) provide the key parameters that define aquifer performance: hydraulic conductivity, transmissivity, storativity, specific yield, well efficiency/well loss, and sustainable pumping rates/drawdown behavior.  Our reviews focus on analytical methods and underlying assumptions—helping clients understand the uncertainties.

AA GeoEnvironmental reviews:

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Test Design & Field Methodology

  • Pre-test planning and objectives.
  • Pumping rates, duration, and stabilization criteria.
  • Selection and placement of observation wells.
  • Water-level measurement techniques and accuracy.
  • Testing conditions (boundary effects, partial penetration, skin effects).

Aquifer test Data

  • Time-drawdown and distance-drawdown data.
  • Identification of data inconsistencies or errors.
  • Assessment of noise, barometric effects, tidal influences, or recovery anomalies.
  • Evaluation of data quality relative to analytical techniques.

Analytical & Numerical Interpretations

  • Analytical solutions.
  • Confined vs. unconfined interpretation.
  • Boundary conditions (leaky, recharge, no-flow boundaries).
  • Wellbore storage and skin effects.
  • Recovery test interpretation

Sustainable Yield & Water Resource Evaluation

  • Long-term groundwater availability.
  • Potential impacts on nearby wells or surface water.
  • Seasonal variation, recharge, and long-term drawdown trends.
  • Aquifer sustainability at proposed pumping rates.
  • Alignment with industry standards for water supply wells

AA GeoEnvironmental verifies:

  • Proper construction of hydrographs and drawdown curves.
  • Parameter estimation and uncertainty handling.
  • Identification of assumptions, limitations, and data gaps.
  • Internal consistency between text, tables, and figures.

Reviews assess whether conclusions are supported by data and consistent with hydrogeological principles. This service is particularly beneficial when:

  • New water supply wells are planned or evaluated.
  • Well performance or yield is questioned.
  •  Water-quality data require interpretation.

What this Service Is

  • Review and interpretation of geological and hydrological data.
  • Evaluation of aquifer testing, data quality, and interpretations.
  • Highlighting uncertainties and strengthen stakeholder communication.
  • QA/QC process for improving defensibility of groundwater projects.

What this Service Is Not

  • Field investigation, drilling services, or execution of pumping tests.
  • Advocacy for extraction rights or water-use decisions.
  • Regulatory permitting or approval.
  • Legal, compliance, or decision-making authority.

Clients maintain full responsibility for water-resource management decisions and regulatory compliance.

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