Landfill Groundwater Monitoring Inspection Checklist [FREE PDF]

Landfill groundwater monitoring is mandated under EPA RCRA 40 CFR Part 258 Subpart E, requiring operators to detect and respond to contamination through systematic well sampling and water quality analysis. Municipal solid waste landfills must maintain a network of monitoring wells upgradient and downgradient to establish background concentrations and detect statistical changes. Failure to comply can result in significant enforcement actions, corrective measures requirements, and potential facili

  • Industry: Landfill Operations
  • Frequency: Quarterly
  • Estimated Time: 90-120 minutes
  • Role: Landfill Operator
  • Total Items: 44
  • Compliance: EPA RCRA 40 CFR 258 Subpart E - Groundwater Monitoring and Corrective Action, EPA RCRA 40 CFR 264.97 - General Groundwater Monitoring Requirements, EPA Clean Water Act 33 U.S.C. 1251 - Water Quality Standards, OSHA 29 CFR 1910.120 HAZWOPER - Hazardous Waste Operations, State Solid Waste Regulations - Groundwater Protection Standards

Monitoring Well Condition Assessment

Evaluate the physical condition and integrity of all groundwater monitoring wells prior to sampling.

  • Are all monitoring well casings free of visible damage, corrosion, or structural defects?
  • Are all well caps and locks secured and intact to prevent unauthorized access or tampering?
  • Are well surface seals and protective casings free of cracks or gaps that could allow surface water intrusion?
  • Is the area immediately surrounding each well free of standing water, spills, or potential contamination sources?
  • Has the total number of active monitoring wells been verified against the approved monitoring network plan?
  • Are well identification markers clearly legible and consistent with facility monitoring records?

Well Purging and Pre-Sampling Procedures

Verify that proper purging protocols are followed to ensure representative groundwater samples are obtained.

  • Has the static water level in each well been measured and recorded prior to purging?
  • Have wells been purged of a minimum of three casing volumes or until field parameters stabilize before sampling?
  • Are field parameter readings (pH, conductivity, DO, ORP, turbidity) recorded at specified intervals during purging?
  • Is purge water collected, containerized, and managed as potentially hazardous waste per RCRA guidelines?
  • Are all purging equipment items decontaminated between wells to prevent cross-contamination?

Groundwater Sample Collection

Document sample collection procedures, container handling, and chain of custody protocols.

  • Are samples collected using approved low-flow or minimal-drawdown sampling methods where required by the monitoring plan?
  • Are all sample containers properly labeled with well ID, date, time, collector name, and analysis required?
  • Are samples preserved with appropriate preservatives and collected in correct container types for each analysis?
  • Are field blanks, trip blanks, and duplicate samples collected per the quality assurance project plan (QAPP)?
  • Are all samples placed on ice at 4°C or below immediately after collection for shipment to the laboratory?
  • Has a complete chain of custody (COC) form been initiated and signed at the time of sample collection?

Field Parameter Measurements and Water Levels

Record quantitative field measurements for water levels, field chemistry, and physical characteristics.

  • Have depth-to-water measurements been recorded for all wells using a calibrated water level meter?
  • Is the measured pH within the acceptable range established in the facility's approved monitoring plan?
  • Has specific conductance been measured and recorded for each well during the sampling event?
  • Has groundwater temperature been measured and recorded at each well using a calibrated thermometer?
  • Have dissolved oxygen (DO) and oxidation-reduction potential (ORP) been measured and recorded at each well?

Leachate Collection System and Liner Integrity

Inspect leachate collection infrastructure and verify containment system performance to protect groundwater.

  • Is the leachate collection and removal system (LCRS) operational and free of blockages or damage?
  • Is leachate head on the liner maintained at less than 30 centimeters (1 foot) as required?
  • Are leachate storage tanks, sumps, and conveyance piping free of visible leaks, cracks, or structural failures?
  • Has leachate volume generated and removed been metered and recorded during this monitoring period?
  • Is leachate disposed of or treated at a permitted facility with appropriate manifest documentation?
  • Are leak detection layer sump volumes or flow rates within expected ranges indicating liner integrity?

Statistical Analysis and Compliance Evaluation

Review statistical methods, compare results to groundwater protection standards, and assess compliance status.

  • Have laboratory analytical results been compared against groundwater protection standards for all required constituents?
  • Has a statistically valid method been applied to evaluate this quarter's results against background concentrations?
  • Are all laboratory results from a state-certified laboratory using EPA-approved analytical methods (SW-846)?
  • Have any statistically significant increases (SSI) over background been identified for any indicator or assessment parameters?
  • Has the quarterly groundwater monitoring report been prepared and submitted to the regulatory agency within required timeframes?

Health, Safety, and Personnel Qualifications

Verify that all personnel conducting groundwater monitoring meet training and safety requirements.

  • Do all personnel conducting groundwater sampling hold current HAZWOPER 40-hour certification as required?
  • Is appropriate personal protective equipment (PPE) available and being used correctly by all sampling personnel?
  • Has a site-specific health and safety plan (HASP) been reviewed and signed by all sampling personnel prior to fieldwork?
  • Is emergency contact information and the nearest medical facility information available at the sampling site?
  • Have field instruments (multi-parameter meters, water level meters, calibration equipment) been calibrated before use today?
  • Are all corrective actions or deficiencies identified in the previous monitoring event documented as resolved or in progress?

Documentation and Recordkeeping

Confirm all required records, logs, and reports are complete, accurate, and retained per regulatory requirements.

  • Are all groundwater monitoring records retained on-site or at a nearby location for a minimum of three years?
  • Does the monitoring record include the dates, monitoring well identification, and sampling procedures used for each event?
  • Are laboratory analytical reports, chain of custody forms, and QA/QC documentation filed with this monitoring event?
  • Has the corrective action groundwater monitoring plan been reviewed and updated within the past 12 months if required?
  • Are photographic records or video documentation of well conditions and sampling activities collected and archived?

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Why Use This Landfill Groundwater Monitoring Inspection Checklist [FREE PDF]?

This landfill groundwater monitoring inspection checklist [free pdf] helps landfill operations teams maintain compliance and operational excellence. Designed for landfill operator professionals, this checklist covers 44 critical inspection points across 8 sections. Recommended frequency: quarterly.

Ensures compliance with EPA RCRA 40 CFR 258 Subpart E - Groundwater Monitoring and Corrective Action, EPA RCRA 40 CFR 264.97 - General Groundwater Monitoring Requirements, EPA Clean Water Act 33 U.S.C. 1251 - Water Quality Standards, OSHA 29 CFR 1910.120 HAZWOPER - Hazardous Waste Operations, State Solid Waste Regulations - Groundwater Protection Standards. Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What does the Landfill Groundwater Monitoring Inspection Checklist [FREE PDF] cover?

This checklist covers 44 inspection items across 8 sections: Monitoring Well Condition Assessment, Well Purging and Pre-Sampling Procedures, Groundwater Sample Collection, Field Parameter Measurements and Water Levels, Leachate Collection System and Liner Integrity, Statistical Analysis and Compliance Evaluation, Health, Safety, and Personnel Qualifications, Documentation and Recordkeeping. It is designed for landfill operations operations and compliance.

How often should this checklist be completed?

This checklist should be completed quarterly. Each completion takes approximately 90-120 minutes.

Who should use this Landfill Groundwater Monitoring Inspection Checklist [FREE PDF]?

This checklist is designed for Landfill Operator professionals in the landfill operations industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.

Can I download this checklist as a PDF?

Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.

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