About Us
For nearly four decades, our founder C. Wayne Caswell has built an outstanding reputation of trust, value and quality. These foundations hold true as Caswell Testing continues to provide a wide range of essential water well services.
Caswell Testing has recently expanded to include a full service water quality testing laboratory. With this new addition we can perform extensive potability testing.
Being a leader in excellence and performance has always been our priority. To ensure this, our staff are members of the National Ground Water Association and Maryland Environment Laboratory Association. They have 40 hours of OSHA training and take a minimum of ten hours of continuing education per year.
Unlike other companies, we at Caswell Testing are constantly concerned with our country’s future environment. C. Wayne Caswell speaks publicly on ways to protect our ground water and was a member of the former ground water strategy committee in Baltimore County. He is also the former Vice President of the Maryland-Delaware Water Well Association.
Our company is based on the belief that our customers’ needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals.
We would welcome the opportunity to earn your trust and deliver you the best service in the industry.

Contact Us Today
410-557-WELL (9355)
or 443-452-9770
With a variety of services to choose from, we’re sure you’ll be happy working with us.