The Elizabeth Borough collection system was initially built in the early 1900’s and consists of various sizes of size from 6” to 48” for a total of 43,930 LF or 8.32 miles of pipe.
The Elizabeth Township collection system delivers sewage to the Authority’s treatment plant from a pump station discharges through approximately 800 LF of ten-inch (10”) force main and four (4) direct connections to the Elizabeth Borough Collection System.
The Forward Township collection system consist of two (2) direct connections to the Elizabeth Borough Collection Systems. In addition, several Township homes are connected directly to the Borough’s sewers.
In 1991 neighboring Lincoln Borough joined the system by providing for connection of 17 homes in the Patterson Hill area via the sewers in Elizabeth Township. An individual sewer system constructed by Lincoln Borough currently serves 9 of these homes.
In 1994, DEP issued an order on Forward Township, Elizabeth Township, Elizabeth Borough (and/or their respective municipality authorities) to plan, design, and construct sewage collection systems to serve their respective areas in the Fallen Timber Run Watershed. The systems were planned to connect approximately about 400 equivalent dwelling units (EDUs) from Elizabeth and Forward Townships to the sewage treatment plant.
Construction started in April 1997. The project was completed in early 1998. With the completion of the proposed sewer project, the average daily flow at the plant is still under the permitted capacity of 1.2 MGD.
The original Monongahela River interceptor consisted of 14” and 16” diameter sewers totaling about 2,700 feet. Diversion chambers were installed on collection lines at 6 locations where the combined collection lines meet the interceptor. The interceptor was generally in good condition except that it would become submerged in high river water conditions and was subject to inflow.
A proposal to replace this interceptor with a new one at higher elevation was developed with the help from the Corps of Engineers. The proposal was a part of a project which will raise the Monongahela River Lock and Dam #2 and thus will raise the level of the water pool near the pump station. Plans for the relocation of the interceptor and the combined sewer regulators were finalized in 1999 and 2000. Bids were obtained in June 2000 and construction was completed during 2000 and 2001.
Some of the DEP/EPA’s new requirements for sewage regulators were incorporated in the new construction plans. A separate grit removal unit was also included at the upper end. The new interceptor line has been in operation since August 2001.
The Elizabeth Borough Municipal Authority undertook a comprehensive sewer cleaning and CCTV program. The entire Elizabeth Borough collection system was inspection to evaluate the overall condition of the pipes. All manholes and catch basins were inspected as well and given a GPS coordinates. An overall collection system map was created giving accurate diameters and lengths.
The results of CCTV inspection were used to develop a multi-year program to correct the deficiencies that were identified. The repair and rehabilitation program was broken down into the following areas:
- Sewer Line replacement
- Excavated spot repairs
- Trenchless spot repairs
- Manhole to manhole sewer lining
- Manhole installation and grade ring/lid replacement
1,800 lf of new storm sewers and 11 inlets were installed to separate storm water from the sanitary sewer system.
The following collection system maintenance and repair work under the repair and rehabilitation program in 2015 are as follows:
- 16 new manholes
- 160 lf of excavated pipe repairs
- 330 lf of trenchless spot repairs
- 5,000 lf of manhole to manhole sewer lining
- 650 lf of root treatment
- 2780 lf of CCTV and pipe cleaning on pipes that were previously inaccessible
- 4 lateral T-liners
The following collection system maintenance and repair work under the repair and rehabilitation program in 2016 are as follows:
- 2 new manholes
- 48 lf of excavated pipe repairs
- 243 lf of trenchless spot repairs
- 4070 lf of manhole to manhole sewer lining
- 1,100 lf of root treatment
- 1,030 lf of CCTV and pipe cleaning
958 lf of new 24” storm sewers and 7 inlets were installed to separate storm water from the sanitary sewer system.