Waste Water

Sanitary Sewer System

Since 1995, Montville has experienced a 53% increase in gallons of sewage treated daily. This is a result of a 41% increase in public sewer customers attributable to both new construction and connections by those with obsolete septic fields.

Montville’s 135 miles of sanitary sewer mains carry 750 million gallons of sewage annually to the Parsippany treatment plant on New Road. The sewage is pumped throughout town, toward the treatment facility, through a series of eleven pump stations.

Over the past ten years, all of Montville’s sewage lift stations have been updated with the latest energy efficient technology. This has reduced Montville’s electric significantly resulting in lower operating costs as compared to the old, inefficient, equipment.

Basement Sump Pumps

Do not connect your basement sump pump to the sanitary sewer!

It's the Law!

Federal law prohibits basement sump pumps from discharging into Montville’s Sanitary Sewer System.


  • No storm pipe, storm drain, sump pump for subsurface or basement water, or storm or ground water disposal of any kind shall be connected to or be allowed to discharge into any house or building sewer connection.
  • No gasoline, naphtha, oil, or other explosives or flammable material or acids shall be permitted to be discharged into the sanitary sewer.
  • No cesspool, septic tank, individual sanitary disposal system, dry well or sump hole of any kind shall be connected to or be allowed to discharge into the sewer system.


  • The offender shall be subject to punishment by imprisonment for not more than ninety (90) days or a fine not to exceed one thousand five hundred dollars ($1,500), or both, for each violation.

Safe Disposal of Wastes

  • To learn about the appropriate disposal of household waste, chemicals, and other substances that should not be poured down the drain, please call Morris County Municipal Utilities Authority at Solid Waste 973-285-8390, or check out the Hazardous Household Waste (HHW) website for the Morris County Municipal Utilities Authority.
  • Also check out the Hazardous Household Waste (HHW) website for the New Jersey Department of Environmental Protection.