DTSC Presidio Cleanup

Описание: http://dtsc.ca.gov/
http://www.nps.gov/prsf/index.htm
http://www.presidio.gov/Pages/default...

Script:

SOT of Eileen Fanelli, Presidio Trust:
Remediation always occurs based on current of future land use.

NATS of Presidio

VO:
Located within San Francisco's Golden Gate National Recreation Area, The Presidio offers scenic views, public parks, trails and historic sites. It's a cleanup that involved community members, the Army, the California Regional Water Quality Control Board, the National Park Service, the Presidio Trust and the Department of Toxic Substances Control.

SOT of Bob Boggs, DTSC:
The Presidio was an army base since the late 1800s.

VO:
Until its closure in the mid-90s, the presidio was the longest continuously running military base in the United States. Over 200 hundred years of military use had left behind toxics and hazards that needed to be cleaned up.

SOT of Bog Boggs, DTSC:
The Early 1990s DTSC became the lead regulatory agency overseeing the cleanup.

VO:
The National Park Service and the Presidio Trust are the two federal agencies that manage Presidio.

SOT of Eileen Fanelli, Presidio Trust
The presidio trust was created by an act of congress in 1996. With the mission of managing the presidio as a resource for all people.// we do not obtain revenues from the federal government or appropriations// from the federal government.// the presidio trust took over responsibility for the remediation of the Presidio from the US Army...who had been working closely with the national park service...our sister agency.

Bob Boggs, DTSC:
There were actually over 200 individual sites of at the Presidio and a whole range of concerns.

VO:
Military operation left behind multiple landfills and incinerator waste that contained a wide range of contaminates. Other hazards that need to be cleaned up included: Munitions, ordinance, toxic chemicals such as DDT, leaking underground petroleum pipes, pesticides and lead paint from old army buildings that had contaminated the surrounding soil.

Bob Boggs, DTSC:
Lead based paint on a house that chipped off over time and got into the soil, so those were relatively simple cleanups.

VO:
Cleanup of lead contaminated soil can be straight forward...but the presidio is a national park, making everything on the former base a potential historic artifact.




SOT of Eileen Fanelli, Presidio Trust:
We were posed with a dilemma: How do we handle our historic resource that could actually be contaminated and pose risk to human health?

VO:
Heavy equipment is used to remove contaminated soil during remediation which could inadvertently disrupt or destroy something historic.

SOT of Eileen Fanelli, Presidio Trust:
To make sure that those artifacts managed correctly we relied heavily on archeological support in the remediation process.

NATS of EL POLIN

VO:
Historic areas restored or preserved during the remediation can be found throughout the presidio.

SOT of Eileen Fanelli, Presidio Trust:
One of the resources that we found near where we are standing is a historic damn that impacted water for the earliest inhabitants of this particular site El Polin Springs, which is where the Spanish Junanna Briones and her family.//and you'll see the bricks that we've placed on the ground surface that show where her original housing was located.

VO:
Protecting the past and nature - environmental restoration was a big part of the Presidio’s remediation. Mountain Lake, one of only two natural lakes in San Francisco, has been renewed.

SOT of Bob Boggs, DTSC:
Mountain Lake is right along highway 1 there and it caught a lot of run off. So a lot of contaminants were just what was associated from runoff from the roadway...lead and cadmium stuff that's associated with leaded gas...petroleum that kind of stuff had gotten into the layer of sediments.

VO:
19,000 yards of lead and petroleum contaminated sediment was removed from mountain lake.

SOT of Bob Boggs, DTSC:
They dredged the lake, removed the sediments and now it's coming back stronger than it ever was.

VO:
The cleanup efforts overseen by DTSC provide a safe environment, for people to work, live and play, and helped to preserve a part of San Francisco’s history. Spanning 15 years, the remediation cost 172 million dollars. 350,000 tons of landfill waste was removed from the Presidio. The environmental restoration included 85 acres of natural habitat, 5 acres of forest, 3 acres of wetlands, as well as 26 acres of recreational and scenic areas.


SOT of Eileen Fanelli, Presidio Trust:
The presidio represents a unique opportunity to enhance natural resources that are otherwise lost.


SOT of Bob Boggs, DTSC:
I think it's great. It's something that I'm proud of and I think the department can be proud of. //I think it's a success story for the Trust, the park service and DTSC.

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