The world relies on groundwater, which is why there are many monitoring requirements in place by the PA DEP and the Bureau of Safe Drinking Water. CWM has experience in the five basic types of groundwater monitoring:

  • Ambient
  • Compliance
  • Assessment
  • Remediation
  • Post-closure monitoring

Representative and comparable analytical data and detailed records for groundwater or surface water monitoring programs are dependent on consistent and reliable sampling methods, detailed observations and analytical techniques.

Our groundwater technicians maintain field logbooks for each sampling point, record test data, prepare reports, summaries, and/or charts that interpret test results.

CWM technicians test wells drilled at various depths and locations to reflect different stratas of groundwater at customer sites. Once the volume of the well is well known, the groundwater is purged from the well with dedicated Grundfos pumps, non-dedicated pump and reels, micropurge bladder pumps and manual bailers. This process takes place to clear the well of stagnant water, allowing it to recharge with fresh water. Two to three volumes of water are purged to allow for a representative sample and parameters are measured until stable (pH, conductivity, turbidity, ORP and temperature).

Each technician follows a quality control plan to ensure that proper field calibration, sampling, transporting, analytical and documentation procedures are followed.

CWM Environmental field and laboratory technicians from both our Cleveland location and Kittanning location at are equipped with the knowledge and expertise necessary to satisfy groundwater monitoring requirements compliant with state and federal government regulatory standards.
Our laboratory is certified under the Pennsylvania Department of Environmental Protection, and is NELAP accredited for drinking water.

Who Needs Testing?

Conveniently Some of our sites include landfills, industrial sites, and residential individuals.
Landfills are to have a protective bottom layer to prevent contaminants from getting into the water, but if there is a crack, pollutants can make their way into the water. Landfills receiving more than 20 tons of solid waste per day are required to monitor underlying groundwater during active life and post-closure for 62 constituents listed in 40 CFR part 258.

Coal ash disposal units:

power plants:

Oil and Gas Well drilling:

if your business requires groundwater testing, conveniently

Contact Us for additional information.