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Water

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Along with the industrial development in Cilegon City, the demand for water, both in quantity and specific quality, has also increased. Therefore, on February 27, 2023, Chandra Asri Group purchased 49% shares of PT Krakatau Tirta Industri, making it part of the infrastructure entity under PT Chandra Daya Investasi Tbk (CDI Group)

 

PT Krakatau Tirta Industri has developed its business potential to meet market needs by building and operating several Demin Water Treatment Plants, Water Recycle Plant, Wastewater Treatment Plant with membrane, ultrafiltration, ion exchange, and biological treatment technologies . KTI's 3 business pillars include: Clean water, demin water, and wastewater treatment.

KTI's Business Pillars

Water supply services are the core business of KTI, which provides clean water to various industries, including Chandra Asri Group.

Raw Water Source
Raw Water Source

1. Cidanau River

Cidanau River is a vital river within the Cidanau Watershed (DAS), covering an area of 22,620 Ha. Cidanau River. This river plays  a crucial role in supporting the sustainable development in Banten Province. In addition to its significant water resources, the Cidanau watershed is home to an  endemic conservation area, Lake Swamp (Rawa Danau). Rawa Danau, which spans 3,500 Ha and is designated as a nature reserve. The Cidanau watershed has an average surface water discharge of 2,000 liters per second, further highlighting its importance to the regions’ water supply 

Raw Water Source

2. Cipasauran River

The Cipasauran Watershed is located ±48 km from Cilegon towards Labuan, covering an area of 41.52 km2. In accordance with the Water Use and/or Utilization Permit (SIPPA) number (No.570/4/SIPPA-DPMPTSP/II/2018), the maximum water discharge that can be processed is 800 liters/second.  

Raw Water Source

3. Nadra Krenceng Reservoir

Nadra Krenceng Reservoir serves as one of the raw water infrastructure, designed to store for use during the dry season or to meet the operational demands of the Krenceng water treatment plant. Nadra Krenceng Reservoir is located in Kebonsari Village, Citangkil District, Cilegon City, Banten Province. This artificial lake is fed primarly by the Cidanau River which is ± 28 km away, with water delivered via pipelines  . 

Water Treatment Facilities
Water Treatment Facilities

1. Krenceng Water Treatment Plant (WTP)

Krenceng Water Treatment Plant was established in 1979 as one of the key water treatment facilities owned by PT Krakatau Steel (Persero) Tbk (KS). In 1996, it was incorporated as a subsidiary of KS under the name PT Krakatau Tirta Industri (KTI). The plant has an installed capacity of 1,800 liters/second and operates using water sourced from Cidanau River.

Water Treatment Facilities

2. Cidanau Water Treatment Plant (IPA)

The Cidanau Water Treatment Plant (IPA) began operations in 2018, utilizing raw water sourced from Cipasauran Dam. Raw water is pumped to the treatment unit located at Cidanau. The plant features 3 intake pump units, each with a capacity of 600 liters/second each. The Cipasauran Dam, situated approximately 45 km from Cilegon towards Labuan, serves to raise the water level of the Cipasauran river, allowing it to be directed to the Cidanau IPA which is managed by KTI. Cipasauran weir, completed in 2017, spans 30 meters in width and stands 6,5 m tall. The IPA is equipped with an intake building, a flushing building, and a mud bag/sand trap channel, all located on the right side of the weir.