Sanitary Sewer

Protect Yourself From Sewage Back Ups

The City of Newark maintains more than 100 miles of sanitary sewer mains located along road rights of way and utility easements. In spite of our best efforts blockages of the mains occur, which can cause sewage to back up into homes and businesses.

The city is generally not responsible or liable for costs associated with the clean up and repair of the damage caused by such an event.

Residents and business owners can take steps to protect themselves from these situations:
  • Do not put fats, oils, grease, rags, cloth or disposable diapers, sanitary napkins, or paper products, other than toilet paper, down the drain. These items frequently cause problems in the mains and laterals that cause sewage to back up.
  • Standard property insurance typically excludes coverage for damage caused by water backing up into the structure. However, riders can be purchased that will cover some or all of the damages caused by sewage backing up into the home.
  • There are also circumstances where it may be prudent to install a back flow device to prevent water from backing up into the home or business. A plumber can help you determine if this would be a good choice.

If a Backup Occurs

In the event that you experience a backup, please call the Water Resources Department at 302-366-7000 (24/7) and we will send a crew out as quickly as possible to determine where the blockage is located. If the blockage is found to be in the City's sewer main, the crew will clear it.

If the blockage is located in the property's lateral (the line coming from the home/building and connecting to the City's sewer main), it is the responsibility of the property owner to make the necessary arrangements to have the line cleared.

Sewer Rate Information

The current sewer rates per 1000 gallons for City of Newark Customers as of January 1st, 2016 are as follows:

Subclass BOD1 (lb/1000 gal) SS2 (lb/1000 gal) Rate (per 1000 gal)
 Residential 1.2510
1 0.6255
2 0.6255
3 1.0425
4 1.2510
5 1.2510
6 1.2510
7 1.8765
8 2.2935
9 2.5020
10 2.9190
11 3.1275
12 3.7530
13 4.3785
14 4.5870
15 6.6720

 1.  Biological oxygen demand (BOD) is a measure of toxicity in treated wastewater. See city code §25‐17 for the  poundage per 1,000 gallons loaded by rate class at

2.  Suspended solids (SS) is a measure of toxicity in treated wastewater. See city code §25‐17 for the poundage per  1,000 gallons loaded by rate class at

Additional Information

If you have questions regarding this information please call the Department of Public Works and Water Resources at 302-366-7000 during normal business hours and we will do what we can to assist you.