Former Koshiba Oil Storage Facility

Former Koshiba Oil Storage Facility

October 3, 1948

December 14, 2005

Kanazawa Ward

Shibamachi, Nagahama, Koura 2-chome, Namiki 3-chome

Land:

526,205 square meters

State-owned:

511,859 square meters (97.3%)

Municipality:

4,746 square meters (0.9%)

Private:

9,600 square meters (1.8%)

Building:

727 square meters (national state-owned)

Designation of regional districts, etc.:

Urbanization adjustment area, industrial area, type 1 residential area, Class 1 residential area, Type 1 middle and high-rise residential area, semi-fire prevention area, Type 3 scenic area, Kanazawa Sangyo housing complex Special Industrial Area

There were 34 tanks and stockpiling aircraft fuel. In addition, there was a limited water area including A berth (for large tankers) and B berth (for small tankers), and a pipeline (approximately 1,200 meters) was laid along the Nagahama Waterway.

October 3, 1948

The former Japanese Navy facility was requisitioned by the U.S.

March 22, 1973

The Japan-US Joint Committee agreed to relocate and consolidate pipelines associated with the landfill at Kanazawa Land.

December 4, 1975

Following the completion of the pipeline relocation work started in September 1974, the relevant property was delivered to the government.

February 24, 1977

The Japan-US Joint Committee agreed to relocate one underground oil storage tank (commonly known as No. 18 tank) to be relocated to the facility (the government completed relocation work in April 1979).

October 13, 1981

Tank No. 6 exploded and a fire broke out, but the fire was extinguished through joint activities between the city Fire Bureau fire brigade and the U.S.

October 18, 2004

The U.S.-Japan Joint Committee agreed to return a part (approximately 10 hectares)

October 18, 2005

The U.S.-Japan Joint Committee agreed on a notice of return of the entire land area and a part of the restricted water area (approximately 4.6 hectares) by the end of 2005 and to change the name and usage conditions pertaining to the retained restricted water area.

December 2, 2005

Requested the government to manage the Koshiba oil storage facility after the return.

December 14, 2005

The entire land area of Koshiba Oil Storage Facility and a part of the restricted water area have been returned.

March 31, 2008

We have formulated a basic plan to use the former site of Koshiba oil storage facility.

February 13, 2009

In order to create a forest for the 150th anniversary of the opening of the port, approximately 1.5 hectares of land was entrusted by the government as a tree-planting site commemorating the 150th anniversary of the opening of Yokohama's opening.

June 11, 2009

Held the first forest tree-planting festival to commemorate the 150th anniversary of the opening of the port. (The 2nd meeting was held on October 17, 2009.)
Number of participants: Approximately 800 people (total of the 1st and 2nd sessions)
Number of trees planted: Approximately 11,200 bottles (total of the 1st and 2nd sessions)

June 28, 2010

Received a report from the government (Ministry of Defense, South Kanto Defense Bureau) on the final results of the soil contamination survey.

February to March, 2011

Planting work was carried out on the site of the Nagahama Oil Pipe (Nagahama waterway floor).

February to March, 2012

The government has begun part of soil pollution countermeasures, but has stopped soil pollution countermeasures due to spring water.

July 2012~

The government has begun monitoring surveys of groundwater.

September 4, 2012

We received a proposal from the government for the disposal of state-owned land by free loan.
(As of August 31, 2012)

November 21, 2012

The city responded that the government would accept a proposal for a free loan of state-owned land.

February 12, 2013

The 241st National Property Kanto Regional Council was held, and a report was issued stating that it was appropriate to lend the former Koshiba oil storage facility national land to Yokohama City free of charge as a city park site. In response to this, the government decided on a policy for processing state-owned property.

July 22, 2014

(Tentative name) The basic plan for the former Koshiba Oil Storage Facility was formulated.

August 1, 2014

(Tentative name) We have begun environmental impact assessment procedures for the Koshiba oil storage facility site park.

July 14, 2017

(Tentative name) The former site of Koshiba Oil Storage Facility was designated as a city planning park.

August 14, 2017

(Tentative name) The construction of the former Koshiba oil storage facility site park was started.

September 21, 2017

Concluded a free loan agreement for state-owned land.

July 30, 2021

A part of the first phase of the area was opened as "Koshiba Nature Park".