Tillman Water Reclamation Plant
The Donald C. Tillman Water Reclamation Plant is located in Van Nuys, Los Angeles, Southern California, on the ground of the Woodley Park, which is also known for its Japanese Garden. Its address is 6100 Woodley Avenue, between Victory Boulevard and Burbank Boulevard. The 2.63 hectare (6.5-acre) Japanese Garden, designed by Dr. Koichi Kawana, was built between 1980 and 1983 and celebrated its opening in 1984. 

Named after city engineer Donald C. Tillman, the plant began operating in 1985. Because of its futuristic look, the plant and garden are well known filming locations, mostly for their various Star Trek appearances mixed with matte paintings. 

The location can also be seen in episodes of Knight Rider (1986), Murder, She Wrote (1993), Mighty Morphin' Power Rangers (1995), L.A. Heat (1997), Charmed (1999), and Numb3rs (2009) and was featured in the action comedy Dead Heat (1988, starring Joe Piscopo), the crime drama Rising Sun (1993), the science fiction film CyberTracker (1994), the action film Red Sun Rising (1994), the comedy Bio-Dome (1996), the comedy Austin Powers: International Man of Mystery (1997), the thriller Most Wanted (1997), the science fiction thriller Terminal Error (2002, with Marina Sirtis and Michael Nouri), and the science fiction film Sci-Fighter (2004).

The first appearance of the location was seen in the first season episode  in  when the plant and the garden portrayed the surface of the planet Rubicun III. The scenes were filmed on .

Extended with a matte painting by Illusion Arts, Inc. and Syd Dutton it made its second appearance in the fifth season episode  in . This time it was used as the grounds of the Starfleet Academy on Earth. The cast and crew filmed the exterior scenes on Monday . This was the first time location manager Lisa White coordinated the filming with the cooperation of the Tillman Water Reclamation Plant associates Bob Krivak and Gene Green. According to the call sheet for this day, sunrise was at 6:56 a.m. and sunset at 5:20 p.m. The lunch break was between 12:00 and 12:30 p.m. and the catering service Cynthia's Distinctive Catering provided 110 hot lunches. Beside actors Patrick Stewart, Wil Wheaton, Ray Walston, and Richard Rothenberg, eighteen background talents and three stand-ins worked on location. It was also the first time DGA Trainee David G. Trotti worked on The Next Generation. The set decoration required two statues, fake rocks, flags and a flag pole, and a tool bin.

The location shot extended with a matte painting from "The First Duty" was later re-used for the fifth season cliffhanger .

The TNG Season 4 DVD special feature "New Life and New Civilizations" featured several shots of this location.

The production of Deep Space Nine used the location in  as Starfleet Headquarters ground in the fourth season episodes  and . Again, matte paintings were added.

Another matte painting including the Tillman Water Reclamation Plant can be seen in the seventh season episode  portraying Starfleet Headquarters after the Breen attack.

Outdoor scenes for the first season episode  were filmed at the Tillman Water Reclamation Plant in . (Captains' Logs Supplemental - The Unauthorized Guide to the New Trek Voyages, p. 136) The plant's Japanese garden, normally seen in many other Star Trek episodes shot at the plant, is not seen this time, however, but rather the industrial-looking front part of the main building is shown portraying the building on the unnamed planet.

In  the location was again used as the Starfleet Headquarters grounds, recreated at Terrasphere 8, for the fifth season episode . According to the call sheets, the scenes were filmed on Tuesday  and Wednesday  under director David Livingston. The call sheets feature the notes "Be prepared for very hot weather – dress accordingly – use sunscreen" and "No smoking or eating within the gardens. Do not travel or work off the dirt paths within the garden.". The first day of filming also features an attached map guiding people from Paramount Pictures to the Tillman Water Reclamation Plant. It's also listing Gene Green and Patrick as contacts for the location. Breakfast and lunch was provided by The Arrangement and Lisa White worked as location manager.

The location can be also seen in the sixth season episode  via a recycled shot from .

The Tillman Water Reclamation Plant was also added to a matte painting for several episodes of Enterprise again as location for Starfleet Headquarters. The matte painting first appeared in the first season episode  and later in the episodes , , , and . A long shot was used in . Actors Adam Anello, Amy Kate Connolly, Bobby Pappas, and an unknown actress were placed in this shot.

Other 
In its role as Starfleet headquarters plant and garden were also featured in a Star Trek parody and pop culture production. In a 2014 episode of the television reality show Storage Wars (Season 5 Episode 8: "Bid Strong and Prosper"), the site served as the backdrop for a by Gabriel Koerner headed three-Trekkie team in Star Trek attire from the local Los Angeles Star Trek club, asked for a value estimate of collectible Star Trek items found in an abandoned storage locker room.

External links 
 
 
 Tillman Water Reclamation Plant – official site
 TheJapaneseGarden.org – official site

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Filming locations