once through cooling at diablo canyon nuclear plant 1
TRANSCRIPT
![Page 1: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/1.jpg)
ONCE THROUGH COOLINGat Diablo Canyon Nuclear Plant
1
![Page 2: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/2.jpg)
What is Once Through Cooling (OTC)?
Ocean water is used to
cool the two reactors at
Diablo Canyon
2
![Page 3: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/3.jpg)
How much water does Diablo use?
2.5 BILLION gallons
of seawater per day!
3
![Page 4: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/4.jpg)
How does this affect sea life?
Larger life forms suffer impingementSmaller life forms suffer entrainment
Warm water discharged into the ocean stresses and kills fish, plants, and other wildlife.
4
![Page 5: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/5.jpg)
5
OTC kills life forms at the bottom of the
food chain
All other marine life is affected through
the food chain
![Page 6: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/6.jpg)
How Many?
It is estimated that more than
1 BILLION such organisms are killed each year by Diablo Canyon nuclear
plant.6
![Page 7: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/7.jpg)
Diablo Canyon Nuclear plant is having a dramatic effect on
the amount of sea life present in our already
suffering ocean.
7
![Page 8: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/8.jpg)
1972 – Congress
passes Clean Water Act
What laws are in place to protect the marine environment from OTC?
8
![Page 9: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/9.jpg)
2001 – EPA orders new plant to use “closed-cycle
cooling”
2010 – CA State Water Resources Control Board requires power plants to comply with Clean Water
Act9
![Page 10: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/10.jpg)
What is happening at Diablo Canyon nuclear plant?
PG&E required to study alternatives to meet requirements
Review Committee of technical reps to oversee study
Compliance date – December 31, 202410
![Page 11: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/11.jpg)
However -
Proposed amendment to the water quality control policy on the use of coastal and estuarine waters for power plant cooling in 2014
Expects to issue findings and call for public comment in the fall of 2015
11
![Page 12: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/12.jpg)
Cooling Towers –
most effective method for
reducing the impacts of OTC
What are the options to OTC?
12
![Page 13: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/13.jpg)
Modification – modify the existing OTC system
Mitigation –offset
environmental damage by implementing mitigation
projects 13
![Page 14: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/14.jpg)
Close Diablo Canyon
now!
14
Artists rendering of alternative uses for the Diablo Canyon site provided by Alliance for Nuclear Responsibility – www.a4nr.org
![Page 15: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/15.jpg)
What can I do to help protect our marine environment?
Pass a resolution calling for
protection of marine life by ending OTC at Diablo Canyon
15
![Page 16: ONCE THROUGH COOLING at Diablo Canyon Nuclear Plant 1](https://reader033.vdocuments.net/reader033/viewer/2022050819/56649e045503460f94af0246/html5/thumbnails/16.jpg)
SLO Mothers for Peacemothersforpeace.orgP.O. Box 3608San Luis Obispo, CA 93403(805) 773-3881
Stay in touch with SLO Mothers for Peace
16