Welcome to McGowan LLC

McGowan LLC is the State's leading compliance management company.  We are a diversified service company which specializes in the testing, management and remediation of potable well water.  Our clients include small public water systems and private individuals.  We provide compliance management and licensed operator services to public water systems and well testing and remediation services to private homeowners.​

Licensed Operator Services

Private Well Testing

New Jersey's #1 supplier of licensed operators and compliance management support.

Spillfund

New Jersey's most experienced Spillfund services at no cost to the property owner.

Fast, low cost water testing and Certificates of Compliance. Expert remediation of water quality problems.

Water Treatment

Free phone consultation and expert advice on water quality problems and solutions.