FROM SUBURBAN TESTING LABS TO SPL: SAME TRUSTED TEAM, STRONGER THAN EVER.
A Trusted Lab, Now Part of SPL
For more than 60 years, our Reading, Pennsylvania laboratory has delivered accurate, defensible environmental testing data to protect public health and preserve the environment. Founded in 1963 as Suburban Testing Labs, we’ve grown from a small regional water testing company into one of the largest independent laboratories in the Mid-Atlantic.
Today, we are proud to continue that legacy as SPL Reading—offering the same trusted team, the same high-quality service, and now the added strength of SPL’s national network. From drinking water and wastewater testing to soil, biosolids, and solid materials analysis, we serve clients across Pennsylvania, New Jersey, Maryland, and Delaware with the accuracy, speed, and customer care they’ve come to expect.
Our purpose remains the same: delivering high-quality, defensible data with integrity, innovation, and personalized support.
