Plastic Manhole Insert
Manhole Insert- V2P
Stainless Steel Insert
Valve Box Insert
Odoreater Insert
Inflow Cost Analysis

Leak Stopping
Patching / Invert Repair
Linings / Coatings
Infiltration Case Study



Parson Environmental has been assisting Consulting Engineers with Manhole Rehabilitation product selections and Specifications since 1985. Our company provides choices than can be evaluated according to the project scope and customer needs, rather than a "one product fits all" approach. We utilize over 80 years of combined industry experience to help you provide the right products for your clients.




"As a consulting Engineer in the municipal wastewater business I have recommended and specified Parson Environmental Products for many years to my clients. The Parson manhole repair and corrosion protection products are very effective in repairing manholes that have leaks or deterioration due to Hydrogen Sulfide Corrosion. These products are easily applied by municipal personnel when needed as well as by contracors on larger projects. I have found that the manhole inserts are especially effective in reducing Inflow and keeping grit out of sewer systems. We have worked with PA DEP through Corrective Action Plans and obtained additional EDU allocations in many systems by installing inserts and performing rehabilitation work with Parson Products. Parson continues to look ahead to what the industry needs are and develops new products to sucessfully fill those needs at reasonable prices. "

Michael Sassaman ARRO Consulting