Company: MSEX
Filing Date: 2025-02-28
Form Type: 10-K
Source: 0001174947-25-000251
Chunk: 154

Company: MIDDLESEX WATER CO
Filing Date: 2025-02-28
Form: 10-K
Item: Item 1A
Chunk 154
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 Plant 

The water utility plant in our systems consists
of source of supply, pumping, water treatment, transmission and distribution, general facilities and all appurtenances, including all
connecting pipes.

The wastewater utility plant in our systems consist
of pumping, treatment, collection mains, general facilities and all appurtenances, including all connecting pipes.

Middlesex System 

The Middlesex System’s principal source
of surface supply is the Delaware & Raritan Canal owned by the State of New Jersey and operated as a water resource by the NJWSA.

Water is withdrawn from the Delaware & Raritan
Canal at New Brunswick, New Jersey through our intake and pumping station, located on state-owned land bordering the canal. Water is transported
through two raw water pipelines for treatment and distribution at our CJO Plant in Edison, New Jersey.

The CJO Plant includes chemical storage and chemical
feed equipment, two dual rapid mixing basins, four upflow clarifiers which are also called superpulsators, three ozone contactors, twelve
rapid filters containing gravel, sand and anthracite for water treatment and a steel washwater tank. The CJO Plant also includes a computerized
Supervisory Control and Data Acquisitions system to monitor and control the CJO Plant and the water supply and distribution system in
the Middlesex System. There is a State of New Jersey certified on-site laboratory capable of performing bacteriological, chemical, process
control and advanced instrumental chemical sampling and analysis. 

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The design capacity of the CJO Plant is 55 mgd (60 mgd maximum capacity).
The five electric motor-driven, vertical turbine pumps presently installed have an aggregate capacity of 85 mgd.

In addition, there is a 15 mgd auxiliary pumping
station on-site at the CJO Plant location. It has a dedicated substation and emergency power supply provided by a diesel-driven generator.
It pumps from the 10 million gallon distribution storage reservoir directly into the distribution system.

The transmission and distribution system is comprised
of 746 miles of mains and includes 24,300 feet of 48-inch concrete transmission main and 23,400 feet of 42-inch ductile iron transmission
main connecting the CJO Plant to our distribution pipe network and related storage facilities. Also included are a 58,600 foot transmission
main and a 38,800 foot transmission main, augmented with a long-term, non-exclusive agreement with East Brunswick to transport water through
the East Brunswick system to several of