Company: MSEX
Filing Date: 2025-02-28
Form Type: 10-K
Source: 0001174947-25-000251
Chunk: 273

Company: MIDDLESEX WATER CO
Filing Date: 2025-02-28
Form: 10-K
Item: Item 1B
Chunk 273
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 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. 

19 

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 our other contract customers.

The Middlesex System’s storage facilities
consist of a 10 million gallon reservoir at the CJO Plant, 5 million gallon and 2 million gallon reservoirs in Edison and a 2 million
gallon reservoir at the Park Avenue Plant.

In New Jersey, we own the properties on
which the Middlesex System’s 27 wells are located, the properties on which our storage tanks are located as well as the
property where the CJO Plant is located. We own our operations center located at 1500 Ronson Road, Iselin, New Jersey, consisting of
a 27,000 square foot office building, 16,500 square foot maintenance facility and a 1.96 acre equipment and materials storage and
staging yard.